feat: move npm workaround for missing gitHead to the npm plugin

Adds the options `extends`, which can be defined via configuration file or CLI arguments to a single path or an array of paths of shareable configuration.
A shareable configuration is a file or a module that can be loaded with `require`.
Options is defined by merging in the following order of priority:
- CLI/API
- Configuration file
- Shareable configuration (from right to left)

Options set in a shareable configuration can be unset by setting it to `null` or `undefined` in the main configuration file. If a default value applies to this property it will be used.

.editorconfig

@@ -1,11 +0,0 @@
-root = true
-
-[*]
-end_of_line = lf
-insert_final_newline = true
-indent_style = space
-indent_size = 2
-trim_trailing_whitespace = true
-
-[*.md]
-trim_trailing_whitespace = false

.github/airtable-crm.yml

@@ -0,0 +1 @@
+base: app0ZOxG0FnHmOiuU

.gitignore

@@ -1,9 +1,131 @@
-coverage
-node_modules
-test/registry/couch
-test/registry/data
-test/tmp
+
+# Created by https://www.gitignore.io/api/macos,windows,linux,node
+
+### Linux ###
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### macOS ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Node ###
+# Logs
+logs
 *.log
-*.dump
-.DS_Store
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
 .nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# End of https://www.gitignore.io/api/macos,windows,linux,node
+
+package-lock.json
+yarn.lock

.npmrc

@@ -0,0 +1 @@
+package-lock=false

.travis.yml

@@ -1,22 +1,28 @@
-sudo: false
 language: node_js
-cache:
-  directories:
-  - node_modules
+services:
+  - docker
 notifications:
   email: false
 node_js:
-- 5
-- 4
-- iojs
-- '0.12'
-- '0.10'
-before_install:
-- npm i -g npm@^2.0.0
-before_script:
-- npm prune
+  - 9
+  - 8
+os:
+  - linux
+
+# Trigger a push build on caribou and greenkeeper branches + PRs build on every branches
+# Avoid double build on PRs (See https://github.com/travis-ci/travis-ci/issues/1147)
+branches:
+  only:
+    - caribou
+    - /^greenkeeper.*$/
+
+# Retry install on fail to avoid failing a build on network/disk/external errors
+install:
+  - travis_retry npm install
+
+script:
+  - npm run test
+
 after_success:
-- npm run coverage:upload
-- npm run semantic-release
-services:
-- couchdb
+  - npm run codecov
+  - npm run semantic-release

.yarnrc

@@ -0,0 +1 @@
+--install.no-lockfile true

CODE_OF_CONDUCT.md

@@ -0,0 +1,46 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at semantic-release+coc@martynus.net. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -7,15 +7,15 @@
 > – [egghead.io](https://egghead.io/lessons/javascript-how-to-write-a-javascript-library-automating-releases-with-semantic-release)
 
 [![Join the chat at https://gitter.im/semantic-release/semantic-release](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/semantic-release/semantic-release?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![npm](https://img.shields.io/npm/v/semantic-release.svg)](https://www.npmjs.com/package/semantic-release)
+[![Greenkeeper badge](https://badges.greenkeeper.io/semantic-release/semantic-release.svg)](https://greenkeeper.io/)
+[![license](https://img.shields.io/github/license/semantic-release/semantic-release.svg)](https://github.com/semantic-release/semantic-release/blob/master/LICENSE)
+[![styled with prettier](https://img.shields.io/badge/styled_with-prettier-ff69b4.svg)](https://github.com/prettier/prettier)
 [![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release)
-[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](https://github.com/feross/standard)
 [![Commitizen friendly](https://img.shields.io/badge/commitizen-friendly-brightgreen.svg)](http://commitizen.github.io/cz-cli/)
 
-[![Dependency Status](https://david-dm.org/semantic-release/semantic-release/caribou.svg)](https://david-dm.org/semantic-release/semantic-release/caribou)
-[![devDependency Status](https://david-dm.org/semantic-release/semantic-release/caribou/dev-status.svg)](https://david-dm.org/semantic-release/semantic-release/caribou#info=devDependencies)
-
-[![Build Status](https://travis-ci.org/semantic-release/semantic-release.svg?branch=caribou)](https://travis-ci.org/semantic-release/semantic-release)
-[![Coverage Status](https://coveralls.io/repos/semantic-release/semantic-release/badge.svg?branch=caribou&service=github)](https://coveralls.io/github/semantic-release/semantic-release?branch=caribou)
+[![Travis](https://img.shields.io/travis/semantic-release/semantic-release/caribou.svg)](https://travis-ci.org/semantic-release/semantic-release)
+[![Codecov](https://img.shields.io/codecov/c/github/semantic-release/semantic-release/caribou.svg)](https://codecov.io/gh/semantic-release/semantic-release)
 
 Out of the box this is just about _commit-messages_, but you can do so much more.
 
@@ -54,7 +54,7 @@ This removes the immediate connection between human emotions and version numbers
       “We fail to follow SemVer – and why it needn’t matter”
     </th>
     <th>
-      “semantic-release Q&A with Kent C. Dodds”
+      “semantic-release Q&amp;A with Kent C. Dodds”
     </th>
   </tr>
   <tr>
@@ -79,17 +79,20 @@ This removes the immediate connection between human emotions and version numbers
 
 Instead of writing [meaningless commit messages](http://whatthecommit.com/), we can take our time to think about the changes in the codebase and write them down. Following formalized conventions it is then possible to generate a helpful changelog and to derive the next semantic version number from them.
 
-When `semantic-release` is setup it will do that after every successful continuous integration build of your master branch (or any other branch you specify) and publish the new version for you. This way no human is directly involved in the release process and your releases are guaranteed to be [unromantic and unsentimental](http://sentimentalversioning.org/).
+When `semantic-release` is set up it will do that after every successful continuous integration build of your master branch (or any other branch you specify) and publish the new version for you. This way no human is directly involved in the release process and your releases are guaranteed to be [unromantic and unsentimental](http://sentimentalversioning.org/).
 
 If you fear the loss of control over timing and marketing implications of software releases you should know that `semantic-release` supports [release channels](https://github.com/npm/npm/issues/2718) using `npm`’s [dist-tags](https://docs.npmjs.com/cli/dist-tag). This way you can keep control over what your users end up using by default, you can decide when to promote an automatically released version to the stable channel, and you can choose which versions to write blogposts and tweets about. You can use the same mechanism to [support older versions of your software](https://gist.github.com/boennemann/54042374e49c7ade8910), for example with important security fixes.
 
-This is what happens in series:
+When pushing new commits with `git push` a CI build is triggered. After running the tests the command `semantic-release` will execute the following tasks in series:
 
-| 1. `git push` | 2. `semantic-release pre` | 3. `npm publish` | 4. `semantic-release post` |
-| :--- | :--- | :--- | :---- |
-| New code is pushed and triggers a CI build. | Based on all commits that happened since the last release, the new version number gets written to the `package.json`. | The new version gets published to `npm`. | A changelog gets generated and a [release](https://help.github.com/articles/about-releases/) (including a git tag) on GitHub gets created. |
-
-_Note:_ The current release/tag implementation is tied to GitHub, but could be opened up to Bitbucket, GitLab, et al. Feel free to send PRs for these services.
+| Step               | Description                                                                                 |
+| ------------------ | ------------------------------------------------------------------------------------------- |
+| Verify Conditions  | Run the [verifyConditions](#verifyconditions) plugin                                        |
+| Get last release   | Obtain last release with the [getLastRelease](#getlastrelease) plugin                       |
+| Analyze commits    | Determine the type of release to do with the [analyzeCommits](#analyzecommits) plugin       |
+| Verify release     | Call the [verifyRelease](#verifyrelease) plugin                                             |
+| Generate notes     | Generate release notes with plugin [generateNotes](#generatenotes)                          |
+| Publish            | Call the [publish](#publish) plugin                                                         |
 
 ## Default Commit Message Format
 
@@ -106,7 +109,7 @@ format that includes a **type**, a **scope** and a **subject** ([full explanatio
 <footer>
 ```
 
-You can simplify using this convention for yourself and contributors by using [commitizen](https://github.com/commitizen/cz-cli) and [validate-commit-msg](https://github.com/kentcdodds/validate-commit-msg).
+You can simplify using this convention for yourself and contributors by using [commitizen](https://github.com/commitizen/cz-cli) and [commitlint](https://github.com/marionebl/commitlint) or [semantic-git-commit-cli](https://github.com/JPeer264/node-semantic-git-commit-cli).
 
 ### Patch Release
 
@@ -125,7 +128,7 @@ feat(pencil): add 'graphiteWidth' option
 ```
 perf(pencil): remove graphiteWidth option
 
-BREAKING CHANGE: The graphiteWidth option has been removed. The default graphite width of 10mm is always used for performance reason.
+BREAKING CHANGE: The graphiteWidth option has been removed. The default graphite width of 10mm is always used for performance reasons.
 ```
 
 ## Setup
@@ -145,32 +148,40 @@ _[This is what happens under the hood.](https://github.com/semantic-release/cli#
 
 ## Options
 
-You can pass options either via command line (in [kebab-case](https://lodash.com/docs#kebabCase)) or in the `release` field of your `package.json` (in [camelCase](https://lodash.com/docs#camelCase)). The following two examples are the same, but CLI arguments take precedence.
+You can pass options either via command line (in [kebab-case](https://lodash.com/docs#kebabCase)) or in the `release` field of your `package.json` (in [camelCase](https://lodash.com/docs#camelCase)). Alternatively the configuration can also be defined in `.releaserc.yml`, `.releaserc.js`, `.releaserc.js` or `release.config.js`.
 
-| CLI | package.json |
-| --- | --- |
-| <pre><code>semantic-release pre --no-debug</code><pre> | <pre><code><div>//package.json</div><div>"release": {</div><div>  "debug": false</div><div>}</div></code></pre><pre><code>semantic-release pre</code></pre> |
+The following two examples are the same, but CLI arguments take precedence.
 
+##### CLI
+```bash
+semantic-release --branch next
+```
+
+##### package.json
+```json
+"release": {
+  "branch": "next"
+}
+```
+```bash
+semantic-release
+```
 
 These options are currently available:
 - `branch`: The branch on which releases should happen. Default: `'master'`
-- `debug`: If true doesn’t actually publish to npm or write things to file. Default: `!process.env.CI`
-- `githubToken`: The token used to authenticate with GitHub. Default: `process.env.GH_TOKEN`
-- `githubUrl`: Optional. Pass your GitHub Enterprise endpoint.
-- `githubApiPathPrefix`: Optional. The path prefix for your GitHub Enterprise API.
+- `repositoryUrl`: The git repository URL. Default: `repository` property in `package.json` or git origin url. Any valid git url format is supported (See [Git protocols](https://git-scm.com/book/en/v2/Git-on-the-Server-The-Protocols)). If the [Github plugin](https://github.com/semantic-release/github) is used the URL must be a valid Github URL that include the `owner`, the `repository` name and the `host`. The Github shorthand URL is not supported.
+- `dry-run`: Dry-run mode, skipping verifyConditions, publishing and release, printing next version and release notes
+- `extends`: Array of module or files path containing a shareable configuration. Options defined via CLI or in the `release` property will take precedence over the one defined in a shareable configuration.
+- `debug`: Output debugging information
 
 _A few notes on `npm` config_:
 1. The `npm` token can only be defined in the environment as `NPM_TOKEN`, because that’s where `npm` itself is going to read it from.
-
 2. In order to publish to a different `npm` registry you can specify that inside the `package.json`’s [`publishConfig`](https://docs.npmjs.com/files/package.json#publishconfig) field.
-
 3. If you want to use another dist-tag for your publishes than `'latest'` you can specify that inside the `package.json`’s [`publishConfig`](https://docs.npmjs.com/files/package.json#publishconfig) field.
 
-4. `semantic-release` generally tries to orientate itself towards `npm` – it inherits the loglevel for example.
-
 ## Plugins
 
-There are numerous steps where you can customize `semantic-release`’s behaviour using plugins. A plugin is a regular [option](#options), but passed inside the `release` block of `package.json`:
+There are numerous steps where you can customize `semantic-release`’s behavior using plugins. A plugin is a regular [option](#options), but passed inside the `release` block of `package.json`:
 
 ```json
 {
@@ -180,13 +191,17 @@ There are numerous steps where you can customize `semantic-release`’s behaviou
     "verifyConditions": {
       "path": "./path/to/a/module",
       "additional": "config"
-    }
+    },
+    "globalPluginOptions": "globalConfig"
+  }
 }
 ```
 
+```bash
+semantic-release --analyze-commits="npm-module-name"
 ```
-semantic-release pre --analyze-commits="npm-module-name"
-```
+
+**Note**: The plugin CLI arguments can be only used to override the plugins to use. Plugins options cannot be defined via CLI arguments and must be defined in the main configuration file or in a shareable config.
 
 A plugin itself is an async function that always receives three arguments.
 
@@ -194,15 +209,10 @@ A plugin itself is an async function that always receives three arguments.
 module.exports = function (pluginConfig, config, callback) {}
 ```
 
-- `pluginConfig`: If the user of your plugin specifies additional plugin config in the `package.json` (see the `verifyConditions` example above) then it’s this object.
+- `pluginConfig`: If the user of your plugin specifies additional plugin config in the `package.json` (see the `verifyConditions` example above) then it’s this object. Options defined directly under `release` will be passed to each plugins. Options defined within a plugin will passed only to that instance of the plugin.
 - `config`: A config object containing a lot of information to act upon.
-  - `env`: All environment variables
-  - `npm`: Select npm configuration bits like `registry`, `tag` and `auth`
-  - `options`: `semantic-release` options like `debug`, or `branch`
-  - `pkg`: Parsed `package.json`
+  - `options`: `semantic-release` options like `repositoryUrl`, or `branch`
   - For certain plugins the `config` object contains even more information. See below.
-- `callback`: If an error occurs pass it as first argument. Otherwise pass your result as second argument.
-
 
 ### `analyzeCommits`
 
@@ -212,13 +222,13 @@ While it may be tempting to use `'prepatch'`, `'preminor'` & `'prerelease'` as p
 
 Have a look at the [default implementation](https://github.com/semantic-release/commit-analyzer/).
 
-### `generateNotes`
-
-This plugin is responsible for generating release notes. Call the callback with the notes as a string. Have a look at the [default implementation](https://github.com/semantic-release/release-notes-generator/).
-
 ### `verifyConditions`
 
-This plugins is responsible for verifying that a release should happen in the first place. For example, the [default implementation](https://github.com/semantic-release/condition-travis/) verifies that the publish is happening on Travis, that it’s the right branch, and that all other build jobs succeeded. There are more use cases for this, e.g. verifying that test coverage is above a certain threshold or that there are no [vulnerabilities](https://nodesecurity.io/) in your dependencies. Be creative.
+This plugins is responsible for verifying that a release should happen in the first place.
+The default implementations are:
+- [travis](https://github.com/semantic-release/condition-travis/): verifies that the publish is happening on Travis, that it’s the right branch, and that all other build jobs succeeded.
+- [github](https://github.com/semantic-release/github/): verifies a Github authentication is set and valid.
+- [npm](https://github.com/semantic-release/npm/): verifies an npm authentication is set and valid.
 
 Passing an array of plugins will run them in series.
 
@@ -232,6 +242,17 @@ Passing an array of plugins will run them in series.
 
 This plugin is responsible for determining a package’s last release version. The [default implementation](https://github.com/semantic-release/last-release-npm) uses the last published version on a npm registry.
 
+### `generateNotes`
+
+This plugin is responsible for generating release notes. Call the callback with the notes as a string. Have a look at the [default implementation](https://github.com/semantic-release/release-notes-generator/).
+It receives a `commits` array, the `lastRelease` and `nextRelease` inside `config`.
+
+### `publish`
+
+This plugins is responsible for publishing the release. The default implementations publish on [npm](https://github.com/semantic-release/npm) and [github](https://github.com/semantic-release/github).
+
+Passing an array of plugins will run them in series.
+
 ## ITYM*FAQ*LT
 > I think you might frequently ask questions like these
 
@@ -262,7 +283,15 @@ It is indeed a great idea because it _forces_ you to follow best practices. If y
 
 ### Why should I trust `semantic-release` with my releases?
 
-`semantic-release` has a full unit- and integration-test-suite that tests _actual_ `npm` publishes against the [npm-registry-couchapp](https://github.com/npm/npm-registry-couchapp/) on all major node.js versions from `^0.10` on. A new version won’t get published if it doesn’t pass on all these engines.
+`semantic-release` has a full unit- and integration-test-suite that tests _actual_ `npm` publishes against the [npm-registry-couchapp](https://github.com/npm/npm-registry-couchapp/). A new version won’t get published if it doesn’t pass on all these engines.
+
+### Why does `semantic-release` require node version >= 8
+
+Being able to write code for just the most recent node versions greatly simplifies development. More language features are available, no transpilation is required, less test builds are to be run, awaited and debugged.
+
+For a special purpose tool like `semantic-release`, that's only meant to be used in controlled CI environments, we think it's okay to have such a high version requirement. As `semantic-release` handles package publishing we expect almost every project to have at least one build job running node 8 already – and that's all it takes. Even if that's not that case `semantic-release` can still be executed with the help of [npx](https://www.npmjs.com/package/npx) (`npx -p node@8 npm run semantic-release`).
+
+Please see our [Node Support Policy](#node-support-policy) for our long-term promise for supporting Node.
 
 ## Badge
 
@@ -286,6 +315,20 @@ Use this in one of your projects? Include one of these badges in your README.md
 [![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg?style=flat-square)](https://github.com/semantic-release/semantic-release)
 ```
 
+## Node Support Policy
+
+We only support [Long-Term Support](https://github.com/nodejs/Release) versions of Node starting with [Node 8.9.0 (LTS)](https://nodejs.org/en/blog/release/v8.9.0/).
+
+We specifically limit our support to LTS versions of Node, not because this package won't work on other versions, but because we have a limited amount of time, and supporting LTS offers the greatest return on that investment.
+
+It's possible this package will work correctly on newer versions of Node. It may even be possible to use this package on older versions of Node, though that's more unlikely as we'll make every effort to take advantage of features available in the oldest LTS version we support.
+
+As each Node LTS version reaches its end-of-life we will remove that version from the node engines property of our package's package.json file. Removing a Node version is considered a breaking change and will entail the publishing of a new major version of this package. We will not accept any requests to support an end-of-life version of Node. Any merge requests or issues supporting an end-of-life version of Node will be closed.
+
+We will accept code that allows this package to run on newer, non-LTS, versions of Node. Furthermore, we will attempt to ensure our own changes work on the latest version of Node. To help in that commitment, our continuous integration setup runs against all LTS versions of Node in addition the most recent Node release; called current.
+
+JavaScript package managers should allow you to install this package with any version of Node, with, at most, a warning if your version of Node does not fall within the range specified by our node engines property. If you encounter issues installing this package, please report the issue to your package manager.
+
 ## License
 
 MIT License

TROUBLESHOOTING.md

@@ -0,0 +1,34 @@
+# Troubleshooting semantic-release
+
+### ENOTINHISTORY Commit not in history
+
+```
+semantic-release ERR! commits The commit the last release of this package was derived from is not in the direct history of the "master" branch.
+semantic-release ERR! commits This means semantic-release can not extract the commits between now and then.
+semantic-release ERR! commits This is usually caused by force pushing, releasing from an unrelated branch, or using an already existing package name.
+semantic-release ERR! commits You can recover from this error by publishing manually or restoring the commit "123".
+semantic-release ERR! pre Failed to determine new version.
+semantic-release ERR! pre ENOTINHISTORY Commit not in history
+```
+
+To restore semantic-release, follow these steps:
+
+```
+git pull
+git reset --hard origin/master
+npm version x.y.z # check your current version and set this based on semver rules manually
+
+# if you have a PR workflow, create a new branch, otherwise commit to master
+
+git checkout -B chore/release
+git commit -am 'chore: release'
+git push
+
+# merge (not squash-merge) on github (this is important before running git push). This is only required when you work with branches
+git checkout master
+
+# definitely required
+git pull
+git push --tags
+npm publish
+```

bin/semantic-release.js

@@ -1,165 +1,29 @@
 #!/usr/bin/env node
 
-var fs = require('fs')
-var path = require('path')
-var url = require('url')
+// Bad news: We have to write plain ES5 in this file
+// Good news: It's the only file of the entire project
 
-var _ = require('lodash')
-var log = require('npmlog')
-var nopt = require('nopt')
-var npmconf = require('npmconf')
-var normalizeData = require('normalize-package-data')
+// eslint-disable-next-line no-var
+var semver = require('semver');
 
-log.heading = 'semantic-release'
-var env = process.env
-var pkg = JSON.parse(fs.readFileSync('./package.json'))
-var originalPkg = _.cloneDeep(pkg)
-normalizeData(pkg)
-var knownOptions = {
-  branch: String,
-  debug: Boolean,
-  'github-token': String,
-  'github-url': String,
-  'analyze-commits': [path, String],
-  'generate-notes': [path, String],
-  'verify-conditions': [path, String],
-  'verify-release': [path, String]
+if (semver.lt(process.version, '8.0.0')) {
+  console.error(
+    `semantic-release: node version >= 8 is required. Found ${process.version}.
+
+If there is another job running on node version >= 8, it will be picked as
+the build leader and you can safely ignore this message.
+
+If you don't have node 8 in your build matrix you can use "npx" to restore
+compatibility with minimal overhead:
+
+$ npx -p node@8 npm run semantic-release
+
+npx is bundled with npm >= 5.4, or available via npm. More info: npm.im/npx`
+  );
+  process.exit(1);
 }
-var options = _.defaults(
-  _.mapKeys(nopt(knownOptions), function (value, key) {
-    return _.camelCase(key)
-  }),
-  pkg.release,
-  {
-    branch: 'master',
-    fallbackTags: {
-      next: 'latest'
-    },
-    debug: !env.CI,
-    githubToken: env.GH_TOKEN || env.GITHUB_TOKEN,
-    githubUrl: env.GH_URL
-  }
-)
-var plugins = require('../src/lib/plugins')(options)
 
-npmconf.load({}, function (err, conf) {
-  if (err) {
-    log.error('init', 'Failed to load npm config.', err)
-    process.exit(1)
-  }
-
-  var npm = {
-    auth: {
-      token: env.NPM_TOKEN
-    },
-    cafile: conf.get('cafile'),
-    loglevel: conf.get('loglevel'),
-    registry: require('../src/lib/get-registry')(pkg, conf),
-    tag: (pkg.publishConfig || {}).tag || conf.get('tag') || 'latest'
-  }
-
-  // normalize trailing slash
-  npm.registry = url.format(url.parse(npm.registry))
-
-  log.level = npm.loglevel
-
-  var config = {
-    env: env,
-    pkg: pkg,
-    options: options,
-    plugins: plugins,
-    npm: npm
-  }
-
-  var hide = {}
-  if (options.githubToken) hide.githubToken = '***'
-
-  log.verbose('init', 'options:', _.assign({}, options, hide))
-  log.verbose('init', 'Verifying config.')
-
-  var errors = require('../src/lib/verify')(config)
-  errors.forEach(function (err) {
-    log.error('init', err.message + ' ' + err.code)
-  })
-  if (errors.length) process.exit(1)
-
-  if (options.argv.remain[0] === 'pre') {
-    log.verbose('pre', 'Running pre-script.')
-    log.verbose('pre', 'Veriying conditions.')
-
-    plugins.verifyConditions(config, function (err) {
-      if (err) {
-        log[options.debug ? 'warn' : 'error']('pre', err.message)
-        if (!options.debug) process.exit(1)
-      }
-
-      var nerfDart = require('nerf-dart')(npm.registry)
-      var wroteNpmRc = false
-
-      if (env.NPM_OLD_TOKEN && env.NPM_EMAIL) {
-        // Using the old auth token format is not considered part of the public API
-        // This might go away anytime (i.e. once we have a better testing strategy)
-        conf.set('_auth', '${NPM_OLD_TOKEN}', 'project') // eslint-disable-line no-template-curly-in-string
-        conf.set('email', '${NPM_EMAIL}', 'project') // eslint-disable-line no-template-curly-in-string
-        wroteNpmRc = true
-      } else if (env.NPM_TOKEN) {
-        conf.set(nerfDart + ':_authToken', '${NPM_TOKEN}', 'project') // eslint-disable-line no-template-curly-in-string
-        wroteNpmRc = true
-      }
-
-      conf.save('project', function (err) {
-        if (err) return log.error('pre', 'Failed to save npm config.', err)
-
-        if (wroteNpmRc) log.verbose('pre', 'Wrote authToken to .npmrc.')
-
-        require('../src/pre')(config, function (err, release) {
-          if (err) {
-            log.error('pre', 'Failed to determine new version.')
-
-            var args = ['pre', (err.code ? err.code + ' ' : '') + err.message]
-            if (err.stack) args.push(err.stack)
-            log.error.apply(log, args)
-            process.exit(1)
-          }
-
-          var message = 'Determined version ' + release.version + ' as "' + npm.tag + '".'
-
-          log.verbose('pre', message)
-
-          if (options.debug) {
-            log.error('pre', message + ' Not publishing in debug mode.', release)
-            process.exit(1)
-          }
-
-          try {
-            var shrinkwrap = JSON.parse(fs.readFileSync('./npm-shrinkwrap.json'))
-            shrinkwrap.version = release.version
-            fs.writeFileSync('./npm-shrinkwrap.json', JSON.stringify(shrinkwrap, null, 2))
-            log.verbose('pre', 'Wrote version ' + release.version + 'to npm-shrinkwrap.json.')
-          } catch (e) {
-            log.silly('pre', 'Couldn\'t find npm-shrinkwrap.json.')
-          }
-
-          fs.writeFileSync('./package.json', JSON.stringify(_.assign(originalPkg, {
-            version: release.version
-          }), null, 2))
-
-          log.verbose('pre', 'Wrote version ' + release.version + ' to package.json.')
-        })
-      })
-    })
-  } else if (options.argv.remain[0] === 'post') {
-    log.verbose('post', 'Running post-script.')
-
-    require('../src/post')(config, function (err, published, release) {
-      if (err) {
-        log.error('post', 'Failed to publish release notes.', err)
-        process.exit(1)
-      }
-
-      log.verbose('post', (published ? 'Published' : 'Generated') + ' release notes.', release)
-    })
-  } else {
-    log.error('post', 'Command "' + options.argv.remain[0] + '" not recognized. Use either "pre" or "post"')
-  }
-})
+// Node 8+ from this point on
+require('../cli')().catch(() => {
+  process.exitCode = 1;
+});

cli.js

@@ -0,0 +1,60 @@
+const program = require('commander');
+const {pickBy, isUndefined} = require('lodash');
+const logger = require('./lib/logger');
+
+function list(values) {
+  return values.split(',').map(value => value.trim());
+}
+
+module.exports = async () => {
+  program
+    .name('semantic-release')
+    .description('Run automated package publishing')
+    .option('-b, --branch <branch>', 'Branch to release from')
+    .option('-r, --repositoryUrl <repositoryUrl>', 'Git repository URL')
+    .option('-e, --extends <paths>', 'Comma separated list of shareable config paths or packages name', list)
+    .option(
+      '--verify-conditions <paths>',
+      'Comma separated list of paths or packages name for the verifyConditions plugin(s)',
+      list
+    )
+    .option('--get-last-release <path>', 'Path or package name for the getLastRelease plugin')
+    .option('--analyze-commits <path>', 'Path or package name for the analyzeCommits plugin')
+    .option(
+      '--verify-release <paths>',
+      'Comma separated list of paths or packages name for the verifyRelease plugin(s)',
+      list
+    )
+    .option('--generate-notes <path>', 'Path or package name for the generateNotes plugin')
+    .option('--publish <paths>', 'Comma separated list of paths or packages name for the publish plugin(s)', list)
+    .option('--debug', 'Output debugging information')
+    .option(
+      '-d, --dry-run',
+      'Dry-run mode, skipping verifyConditions, publishing and release, printing next version and release notes'
+    )
+    .parse(process.argv);
+
+  if (program.debug) {
+    // Debug must be enabled before other requires in order to work
+    require('debug').enable('semantic-release:*');
+  }
+
+  try {
+    if (program.args.length > 0) {
+      program.outputHelp();
+      process.exitCode = 1;
+    } else {
+      // Remove option with undefined values, as commander.js sets non defined options as `undefined`
+      await require('.')(pickBy(program.opts(), value => !isUndefined(value)));
+    }
+  } catch (err) {
+    // If error is a SemanticReleaseError then it's an expected exception case (no release to be done, running on a PR etc..) and the cli will return with 0
+    // Otherwise it's an unexpected error (configuration issue, code issue, plugin issue etc...) and the cli will return 1
+    if (err.semanticRelease) {
+      logger.log(`%s ${err.message}`, err.code);
+    } else {
+      process.exitCode = 1;
+      logger.error('An error occurred while running semantic-release: %O', err);
+    }
+  }
+};

codecov.yml

@@ -0,0 +1,2 @@
+codecov:
+  branch: caribou

index.js

@@ -0,0 +1,70 @@
+const marked = require('marked');
+const TerminalRenderer = require('marked-terminal');
+const SemanticReleaseError = require('@semantic-release/error');
+const getConfig = require('./lib/get-config');
+const getNextVersion = require('./lib/get-next-version');
+const getCommits = require('./lib/get-commits');
+const logger = require('./lib/logger');
+const {gitHead: getGitHead, isGitRepo} = require('./lib/git');
+
+module.exports = async opts => {
+  if (!await isGitRepo()) {
+    throw new SemanticReleaseError('Semantic-release must run from a git repository', 'ENOGITREPO');
+  }
+
+  const config = await getConfig(opts, logger);
+  const {plugins, options} = config;
+
+  logger.log('Run automated release from branch %s', options.branch);
+
+  if (!options.dryRun) {
+    logger.log('Call plugin %s', 'verify-conditions');
+    await plugins.verifyConditions({options, logger});
+  }
+
+  logger.log('Call plugin %s', 'get-last-release');
+  const {commits, lastRelease} = await getCommits(
+    await plugins.getLastRelease({options, logger}),
+    options.branch,
+    logger
+  );
+
+  logger.log('Call plugin %s', 'analyze-commits');
+  const type = await plugins.analyzeCommits({options, logger, lastRelease, commits});
+  if (!type) {
+    throw new SemanticReleaseError('There are no relevant changes, so no new version is released.', 'ENOCHANGE');
+  }
+  const version = getNextVersion(type, lastRelease, logger);
+  const nextRelease = {type, version, gitHead: await getGitHead(), gitTag: `v${version}`};
+
+  logger.log('Call plugin %s', 'verify-release');
+  await plugins.verifyRelease({options, logger, lastRelease, commits, nextRelease});
+
+  const generateNotesParam = {options, logger, lastRelease, commits, nextRelease};
+
+  if (options.dryRun) {
+    logger.log('Call plugin %s', 'generate-notes');
+    const notes = await plugins.generateNotes(generateNotesParam);
+    marked.setOptions({renderer: new TerminalRenderer()});
+    logger.log('Release note for version %s:\n', nextRelease.version);
+    process.stdout.write(`${marked(notes)}\n`);
+  } else {
+    logger.log('Call plugin %s', 'generateNotes');
+    nextRelease.notes = await plugins.generateNotes(generateNotesParam);
+
+    logger.log('Call plugin %s', 'publish');
+    await plugins.publish({options, logger, lastRelease, commits, nextRelease}, async prevInput => {
+      const newGitHead = await getGitHead();
+      // If previous publish plugin has created a commit (gitHead changed)
+      if (prevInput.nextRelease.gitHead !== newGitHead) {
+        nextRelease.gitHead = newGitHead;
+        // Regenerate the release notes
+        logger.log('Call plugin %s', 'generateNotes');
+        nextRelease.notes = await plugins.generateNotes(generateNotesParam);
+      }
+      // Call the next publish plugin with the updated `nextRelease`
+      return {options, logger, lastRelease, commits, nextRelease};
+    });
+    logger.log('Published release: %s', nextRelease.version);
+  }
+};

lib/debug.js

@@ -0,0 +1,9 @@
+function debugShell(message, shell, debug) {
+  debug(message);
+  debug('cmd: %O', shell.cmd);
+  debug('stdout: %O', shell.stdout);
+  debug('stderr: %O', shell.stderr);
+  debug('code: %O', shell.code);
+}
+
+module.exports = {debugShell};

lib/get-commits.js

@@ -0,0 +1,97 @@
+const gitLogParser = require('git-log-parser');
+const getStream = require('get-stream');
+const debug = require('debug')('semantic-release:get-commits');
+const SemanticReleaseError = require('@semantic-release/error');
+const {unshallow, gitCommitTag, gitTagHead, isCommitInHistory} = require('./git');
+
+/**
+ * Commit message.
+ *
+ * @typedef {Object} Commit
+ * @property {string} hash The commit hash.
+ * @property {string} message The commit message.
+ */
+
+/**
+ * Last release.
+ *
+ * @typedef {Object} LastRelease
+ * @property {string} version The version number of the last release.
+ * @property {string} [gitHead] The commit sha used to make the last release.
+ * @property {string} [gitTag] The tag used to make the last release.
+ */
+
+/**
+ * Result object.
+ *
+ * @typedef {Object} Result
+ * @property {Array<Commit>} commits The list of commits since the last release.
+ * @property {LastRelease} lastRelease The updated lastRelease.
+ */
+
+/**
+ * Retrieve the list of commits on the current branch since the last released version, or all the commits of the current branch if there is no last released version.
+ *
+ * The commit correspoding to the last released version is determined as follow:
+ * - Use `lastRelease.gitHead` if defined and present in `branch` history.
+ * - If `lastRelease.gitHead` is not in the `branch` history, unshallow the repository and try again.
+ * - If `lastRelease.gitHead` is still not in the `branch` history, search for a tag named `v<version>` or `<version>` and verify if it's associated commit sha is present in `branch` history.
+ *
+ * @param {LastRelease} lastRelease The lastRelease object obtained from the getLastRelease plugin.
+ * @param {string} branch The branch to release from.
+ * @param {Object} logger Global logger.
+ *
+ * @return {Promise<Result>} The list of commits on the branch `branch` since the last release and the updated lastRelease with the gitHead used to retrieve the commits.
+ *
+ * @throws {SemanticReleaseError} with code `ENOTINHISTORY` if `lastRelease.gitHead` or the commit sha derived from `config.lastRelease.version` is not in the direct history of `branch`.
+ */
+module.exports = async ({version, gitHead} = {}, branch, logger) => {
+  if (gitHead) {
+    // If gitHead doesn't exists in release branch
+    if (!await isCommitInHistory(gitHead)) {
+      // Unshallow the repository
+      await unshallow();
+    }
+    // If gitHead still doesn't exists in release branch
+    if (!await isCommitInHistory(gitHead)) {
+      // Try to find the commit corresponding to the version, using got tags
+      const tagHead = (await gitTagHead(`v${version}`)) || (await gitTagHead(version));
+
+      // If tagHead doesn't exists in release branch
+      if (!tagHead || !await isCommitInHistory(tagHead)) {
+        // Then the commit corresponding to the version cannot be found in the bracnh hsitory
+        logger.error(notInHistoryMessage(gitHead, branch, version));
+        throw new SemanticReleaseError('Commit not in history', 'ENOTINHISTORY');
+      }
+      gitHead = tagHead;
+    }
+    debug('Use gitHead: %s', gitHead);
+  } else {
+    logger.log('No previous release found, retrieving all commits');
+    // If there is no gitHead nor a version, there is no previous release. Unshallow the repo in order to retrieve all commits
+    await unshallow();
+  }
+
+  Object.assign(gitLogParser.fields, {hash: 'H', message: 'B', gitTags: 'd', committerDate: {key: 'ci', type: Date}});
+  const commits = (await getStream.array(gitLogParser.parse({_: `${gitHead ? gitHead + '..' : ''}HEAD`}))).map(
+    commit => {
+      commit.message = commit.message.trim();
+      commit.gitTags = commit.gitTags.trim();
+      return commit;
+    }
+  );
+  logger.log('Found %s commits since last release', commits.length);
+  debug('Parsed commits: %o', commits);
+  return {commits, lastRelease: {version, gitHead, gitTag: await gitCommitTag(gitHead)}};
+};
+
+function notInHistoryMessage(gitHead, branch, version) {
+  return `The commit the last release of this package was derived from is not in the direct history of the "${branch}" branch.
+This means semantic-release can not extract the commits between now and then.
+This is usually caused by force pushing, releasing from an unrelated branch, or using an already existing package name.
+
+You can recover from this error by restoring the commit "${gitHead}" or by creating a tag for the version "${version}" on the commit corresponding to this release:
+$ git tag -f v${version || '<version>'} <commit sha1 corresponding to last release>
+$ git push -f --tags origin ${branch}
+`;
+}

lib/get-config.js

@@ -0,0 +1,73 @@
+const readPkgUp = require('read-pkg-up');
+const {castArray, pickBy, isUndefined, isNull, isString, isPlainObject} = require('lodash');
+const cosmiconfig = require('cosmiconfig');
+const resolveFrom = require('resolve-from');
+const SemanticReleaseError = require('@semantic-release/error');
+const debug = require('debug')('semantic-release:config');
+const {repoUrl} = require('./git');
+const PLUGINS_DEFINITION = require('./plugins/definitions');
+const plugins = require('./plugins');
+
+module.exports = async (opts, logger) => {
+  const {config} = (await cosmiconfig('release', {rcExtensions: true}).load(process.cwd())) || {};
+  // Merge config file options and CLI/API options
+  let options = {...config, ...opts};
+  const pluginsPath = {};
+  let extendPaths;
+  ({extends: extendPaths, ...options} = options);
+  if (extendPaths) {
+    // If `extends` is defined, load and merge each shareable config with `options`
+    options = {
+      ...castArray(extendPaths).reduce((result, extendPath) => {
+        const extendsOpts = require(resolveFrom.silent(__dirname, extendPath) ||
+          resolveFrom(process.cwd(), extendPath));
+
+        // For each plugin defined in a shareable config, save in `pluginsPath` the extendable config path,
+        // so those plugin will be loaded relatively to the config file
+        Object.keys(extendsOpts).reduce((pluginsPath, option) => {
+          if (PLUGINS_DEFINITION[option]) {
+            castArray(extendsOpts[option])
+              .filter(plugin => isString(plugin) || (isPlainObject(plugin) && isString(plugin.path)))
+              .map(plugin => (isString(plugin) ? plugin : plugin.path))
+              .forEach(plugin => {
+                pluginsPath[plugin] = extendPath;
+              });
+          }
+          return pluginsPath;
+        }, pluginsPath);
+
+        return {...result, ...extendsOpts};
+      }, {}),
+      ...options,
+    };
+  }
+
+  // Set default options values if not defined yet
+  options = {
+    branch: 'master',
+    repositoryUrl: (await pkgRepoUrl()) || (await repoUrl()),
+    // Remove `null` and `undefined` options so they can be replaced with default ones
+    ...pickBy(options, option => !isUndefined(option) && !isNull(option)),
+  };
+
+  debug('options values: %O', Object.keys(options));
+  debug('name: %O', options.name);
+  debug('branch: %O', options.branch);
+  debug('repositoryUrl: %O', options.repositoryUrl);
+  debug('analyzeCommits: %O', options.analyzeCommits);
+  debug('generateNotes: %O', options.generateNotes);
+  debug('verifyConditions: %O', options.verifyConditions);
+  debug('verifyRelease: %O', options.verifyRelease);
+  debug('publish: %O', options.publish);
+
+  if (!options.repositoryUrl) {
+    throw new SemanticReleaseError('The repositoryUrl option is required', 'ENOREPOURL');
+  }
+
+  return {options, plugins: await plugins(options, pluginsPath, logger)};
+};
+
+async function pkgRepoUrl() {
+  const {pkg} = await readPkgUp();
+  return pkg && pkg.repository ? pkg.repository.url : undefined;
+}

lib/get-next-version.js

@@ -0,0 +1,14 @@
+const semver = require('semver');
+
+module.exports = (type, lastRelease, logger) => {
+  let version;
+  if (lastRelease.version) {
+    version = semver.inc(lastRelease.version, type);
+    logger.log('The next release version is %s', version);
+  } else {
+    version = '1.0.0';
+    logger.log('There is no previous release, the next release version is %s', version);
+  }
+
+  return version;
+};

lib/git.js

@@ -0,0 +1,91 @@
+const execa = require('execa');
+const debug = require('debug')('semantic-release:get-version-head');
+const {debugShell} = require('./debug');
+
+/**
+ * Get the commit sha for a given tag.
+ *
+ * @param {string} tagName Tag name for which to retrieve the commit sha.
+ *
+ * @return {string} The commit sha of the tag in parameter or `null`.
+ */
+async function gitTagHead(tagName) {
+  try {
+    const shell = await execa('git', ['rev-list', '-1', tagName]);
+    debugShell('Get git tag head', shell, debug);
+    return shell.stdout;
+  } catch (err) {
+    debug(err);
+    return null;
+  }
+}
+
+/**
+ * Get the tag associated with a commit sha.
+ *
+ * @param {string} gitHead The commit sha for which to retrieve the associated tag.
+ *
+ * @return {string} The tag associatedwith the sha in parameter or `undefined`.
+ */
+async function gitCommitTag(gitHead) {
+  try {
+    const shell = await execa('git', ['describe', '--tags', '--exact-match', gitHead]);
+    debugShell('Get git commit tag', shell, debug);
+    return shell.stdout;
+  } catch (err) {
+    debug(err);
+    return undefined;
+  }
+}
+
+/**
+ * Verify if the commit `sha` is in the direct history of the current branch.
+ *
+ * @param {string} sha The sha of the commit to look for.
+ *
+ * @return {boolean} `true` if the commit `sha` is in the history of the current branch, `false` otherwise.
+ */
+async function isCommitInHistory(sha) {
+  const shell = await execa('git', ['merge-base', '--is-ancestor', sha, 'HEAD'], {reject: false});
+  debugShell('Check if commit is in history', shell, debug);
+  return shell.code === 0;
+}
+
+/**
+ * Unshallow the git repository (retriving every commits and tags).
+ */
+async function unshallow() {
+  await execa('git', ['fetch', '--unshallow', '--tags'], {reject: false});
+}
+
+/**
+ * @return {string} the sha of the HEAD commit.
+ */
+async function gitHead() {
+  try {
+    const shell = await execa('git', ['rev-parse', 'HEAD']);
+    debugShell('Get git head', shell, debug);
+    return shell.stdout;
+  } catch (err) {
+    debug(err);
+    throw new Error(err.stderr);
+  }
+}
+
+/**
+ * @return {string|undefined} The value of the remote git URL.
+ */
+async function repoUrl() {
+  return (await execa.stdout('git', ['remote', 'get-url', 'origin'], {reject: false})) || undefined;
+}
+
+/**
+ * @return {Boolean} `true` if the current working directory is in a git repository, `false` otherwise.
+ */
+async function isGitRepo() {
+  const shell = await execa('git', ['rev-parse', '--git-dir'], {reject: false});
+  debugShell('Check if the current working directory is a git repository', shell, debug);
+  return shell.code === 0;
+}
+
+module.exports = {gitTagHead, gitCommitTag, isCommitInHistory, unshallow, gitHead, repoUrl, isGitRepo};

lib/logger.js

@@ -0,0 +1,23 @@
+const chalk = require('chalk');
+
+/**
+ * Logger with `log` and `error` function.
+ */
+module.exports = {
+  log(...args) {
+    const [format, ...rest] = args;
+    console.log(
+      `${chalk.grey('[Semantic release]:')}${
+        typeof format === 'string' ? ` ${format.replace(/%[^%]/g, seq => chalk.magenta(seq))}` : ''
+      }`,
+      ...(typeof format === 'string' ? [] : [format]).concat(rest)
+    );
+  },
+  error(...args) {
+    const [format, ...rest] = args;
+    console.error(
+      `${chalk.grey('[Semantic release]:')}${typeof format === 'string' ? ` ${chalk.red(format)}` : ''}`,
+      ...(typeof format === 'string' ? [] : [format]).concat(rest)
+    );
+  },
+};

lib/plugins/definitions.js

@@ -0,0 +1,72 @@
+const {isString, isObject, isFunction, isArray} = require('lodash');
+const semver = require('semver');
+
+const RELEASE_TYPE = ['major', 'premajor', 'minor', 'preminor', 'patch', 'prepatch', 'prerelease'];
+const validatePluginConfig = conf => isString(conf) || isString(conf.path) || isFunction(conf);
+
+module.exports = {
+  verifyConditions: {
+    default: ['@semantic-release/npm', '@semantic-release/github', '@semantic-release/condition-travis'],
+    config: {
+      validator: conf => !conf || (isArray(conf) ? conf : [conf]).every(conf => validatePluginConfig(conf)),
+      message:
+        'The "verifyConditions" plugin, if defined, must be a single or an array of plugins definition. A plugin definition is either a string or an object with a path property.',
+    },
+  },
+  getLastRelease: {
+    default: '@semantic-release/npm',
+    config: {
+      validator: conf => Boolean(conf) && validatePluginConfig(conf),
+      message:
+        'The "getLastRelease" plugin is mandatory, and must be a single plugin definition. A plugin definition is either a string or an object with a path property.',
+    },
+    output: {
+      validator: output =>
+        !output ||
+        (isObject(output) && !output.version) ||
+        (isString(output.version) && Boolean(semver.valid(semver.clean(output.version))) && Boolean(output.gitHead)),
+      message:
+        'The "getLastRelease" plugin output if defined, must be an object with a valid semver version in the "version" property and the corresponding git reference in "gitHead" property.',
+    },
+  },
+  analyzeCommits: {
+    default: '@semantic-release/commit-analyzer',
+    config: {
+      validator: conf => Boolean(conf) && validatePluginConfig(conf),
+      message:
+        'The "analyzeCommits" plugin is mandatory, and must be a single plugin definition. A plugin definition is either a string or an object with a path property.',
+    },
+    output: {
+      validator: output => !output || RELEASE_TYPE.includes(output),
+      message: 'The "analyzeCommits" plugin output, if defined, must be a valid semver release type.',
+    },
+  },
+  verifyRelease: {
+    default: false,
+    config: {
+      validator: conf => !conf || (isArray(conf) ? conf : [conf]).every(conf => validatePluginConfig(conf)),
+      message:
+        'The "verifyRelease" plugin, if defined, must be a single or an array of plugins definition. A plugin definition is either a string or an object with a path property.',
+    },
+  },
+  generateNotes: {
+    default: '@semantic-release/release-notes-generator',
+    config: {
+      validator: conf => !conf || validatePluginConfig(conf),
+      message:
+        'The "generateNotes" plugin, if defined, must be a single plugin definition. A plugin definition is either a string or an object with a path property.',
+    },
+    output: {
+      validator: output => !output || isString(output),
+      message: 'The "generateNotes" plugin output, if defined, must be a string.',
+    },
+  },
+  publish: {
+    default: ['@semantic-release/npm', '@semantic-release/github'],
+    config: {
+      validator: conf => Boolean(conf) && (isArray(conf) ? conf : [conf]).every(conf => validatePluginConfig(conf)),
+      message:
+        'The "publish" plugin is mandatory, and must be a single or an array of plugins definition. A plugin definition is either a string or an object with a path property.',
+    },
+  },
+};

lib/plugins/index.js

@@ -0,0 +1,31 @@
+const {isArray, isObject, omit} = require('lodash');
+const SemanticReleaseError = require('@semantic-release/error');
+const PLUGINS_DEFINITION = require('./definitions');
+const pipeline = require('./pipeline');
+const normalize = require('./normalize');
+
+module.exports = (options, pluginsPath, logger) =>
+  Object.keys(PLUGINS_DEFINITION).reduce((plugins, pluginType) => {
+    const {config, output, default: def} = PLUGINS_DEFINITION[pluginType];
+    let pluginConfs;
+    if (options[pluginType]) {
+      // If an object is passed and the path is missing, set the default one for single plugins
+      if (isObject(options[pluginType]) && !options[pluginType].path && !isArray(def)) {
+        options[pluginType].path = def;
+      }
+      if (config && !config.validator(options[pluginType])) {
+        throw new SemanticReleaseError(config.message, 'EPLUGINCONF');
+      }
+      pluginConfs = options[pluginType];
+    } else {
+      pluginConfs = def;
+    }
+
+    const globalOpts = omit(options, Object.keys(PLUGINS_DEFINITION));
+
+    plugins[pluginType] = isArray(pluginConfs)
+      ? pipeline(pluginConfs.map(conf => normalize(pluginType, pluginsPath, globalOpts, conf, logger, output)))
+      : normalize(pluginType, pluginsPath, globalOpts, pluginConfs, logger, output);
+
+    return plugins;
+  }, {});

lib/plugins/normalize.js

@@ -0,0 +1,48 @@
+const {dirname} = require('path');
+const {inspect} = require('util');
+const SemanticReleaseError = require('@semantic-release/error');
+const {isString, isObject, isFunction, noop, cloneDeep} = require('lodash');
+const resolveFrom = require('resolve-from');
+
+module.exports = (pluginType, pluginsPath, globalOpts, pluginOpts, logger, validator) => {
+  if (!pluginOpts) {
+    return noop;
+  }
+
+  const {path, ...config} = isString(pluginOpts) || isFunction(pluginOpts) ? {path: pluginOpts} : pluginOpts;
+  if (!isFunction(pluginOpts)) {
+    if (pluginsPath[path]) {
+      logger.log('Load plugin %s from %s in shareable config %s', pluginType, path, pluginsPath[path]);
+    } else {
+      logger.log('Load plugin %s from %s', pluginType, path);
+    }
+  }
+
+  const basePath = pluginsPath[path]
+    ? dirname(resolveFrom.silent(__dirname, pluginsPath[path]) || resolveFrom(process.cwd(), pluginsPath[path]))
+    : __dirname;
+  const plugin = isFunction(path)
+    ? path
+    : require(resolveFrom.silent(basePath, path) || resolveFrom(process.cwd(), path));
+
+  let func;
+  if (isFunction(plugin)) {
+    func = plugin.bind(null, cloneDeep({...globalOpts, ...config}));
+  } else if (isObject(plugin) && plugin[pluginType] && isFunction(plugin[pluginType])) {
+    func = plugin[pluginType].bind(null, cloneDeep({...globalOpts, ...config}));
+  } else {
+    throw new SemanticReleaseError(
+      `The ${pluginType} plugin must be a function, or an object with a function in the property ${pluginType}.`,
+      'EPLUGINCONF'
+    );
+  }
+
+  return async input => {
+    const result = await func(cloneDeep(input));
+
+    if (validator && !validator.validator(result)) {
+      throw new Error(`${validator.message} Received: ${inspect(result)}`);
+    }
+    return result;
+  };
+};

lib/plugins/pipeline.js

@@ -0,0 +1,19 @@
+const {identity} = require('lodash');
+const pReduce = require('p-reduce');
+
+module.exports = steps => async (input, getNextInput = identity) => {
+  const results = [];
+  await pReduce(
+    steps,
+    async (prevResult, nextStep) => {
+      // Call the next step with the input computed at the end of the previous iteration
+      const result = await nextStep(prevResult);
+      // Save intermediary result
+      results.push(result);
+      // Prepare input for next step, passing the result of the previous iteration and the current one
+      return getNextInput(prevResult, result);
+    },
+    input
+  );
+  return results;
+};

package.json

@@ -1,7 +1,7 @@
 {
   "name": "semantic-release",
-  "description": "automated semver compliant package publishing",
-  "version": "0.0.0-placeholder",
+  "description": "Automated semver compliant package publishing",
+  "version": "0.0.0-development",
   "author": "Stephan Bönnemann <stephan@boennemann.me> (http://boennemann.me)",
   "bin": {
     "semantic-release": "bin/semantic-release.js"
@@ -9,50 +9,65 @@
   "bugs": {
     "url": "https://github.com/semantic-release/semantic-release/issues"
   },
-  "czConfig": {
-    "path": "node_modules/cz-conventional-changelog/"
+  "config": {
+    "commitizen": {
+      "path": "cz-conventional-changelog"
+    }
   },
   "dependencies": {
-    "@semantic-release/commit-analyzer": "^2.0.0",
-    "@semantic-release/condition-travis": "^5.0.2",
-    "@semantic-release/error": "^1.0.0",
-    "@semantic-release/last-release-npm": "^1.2.1",
-    "@semantic-release/release-notes-generator": "^2.0.0",
-    "git-head": "^1.2.1",
-    "github": "^8.0.0",
+    "@semantic-release/commit-analyzer": "^5.0.0",
+    "@semantic-release/condition-travis": "^7.0.0",
+    "@semantic-release/error": "^2.1.0",
+    "@semantic-release/github": "^3.0.0",
+    "@semantic-release/npm": "^2.0.0",
+    "@semantic-release/release-notes-generator": "^6.0.0",
+    "chalk": "^2.3.0",
+    "commander": "^2.11.0",
+    "cosmiconfig": "^3.1.0",
+    "debug": "^3.1.0",
+    "execa": "^0.8.0",
+    "get-stream": "^3.0.0",
+    "git-log-parser": "^1.2.0",
     "lodash": "^4.0.0",
-    "nerf-dart": "^1.0.0",
-    "nopt": "^4.0.0",
-    "normalize-package-data": "^2.3.4",
-    "npmconf": "^2.1.2",
-    "npmlog": "^4.0.0",
-    "parse-github-repo-url": "^1.3.0",
-    "require-relative": "^0.8.7",
-    "run-auto": "^2.0.0",
-    "run-series": "^1.1.3",
-    "semver": "^5.2.0"
+    "marked": "^0.3.6",
+    "marked-terminal": "^2.0.0",
+    "p-reduce": "^1.0.0",
+    "read-pkg-up": "^3.0.0",
+    "resolve-from": "^4.0.0",
+    "semver": "^5.4.1"
   },
   "devDependencies": {
-    "coveralls": "^2.11.4",
-    "cz-conventional-changelog": "^1.1.4",
-    "mkdirp": "^0.5.1",
-    "mock-spawn": "^0.2.6",
-    "nixt": "^0.5.0",
+    "ava": "^0.24.0",
+    "codecov": "^3.0.0",
+    "commitizen": "^2.9.6",
+    "cz-conventional-changelog": "^2.0.0",
+    "delay": "^2.0.0",
+    "dockerode": "^2.5.2",
+    "eslint-config-prettier": "^2.5.0",
+    "eslint-plugin-prettier": "^2.3.0",
+    "file-url": "^2.0.2",
+    "fs-extra": "^5.0.0",
+    "got": "^8.0.0",
+    "js-yaml": "^3.10.0",
+    "mockserver-client": "^5.1.1",
     "nock": "^9.0.2",
-    "npm-registry-couchapp": "^2.6.12",
-    "nyc": "^10.0.0",
-    "proxyquire": "^1.7.3",
-    "rimraf": "^2.5.0",
-    "standard": "^8.6.0",
-    "tap": "^9.0.0"
+    "nyc": "^11.2.1",
+    "p-retry": "^1.0.0",
+    "prettier": "~1.9.2",
+    "proxyquire": "^1.8.0",
+    "sinon": "^4.0.0",
+    "tempy": "^0.2.1",
+    "xo": "^0.18.2"
   },
   "engines": {
-    "node": ">=0.10",
+    "node": ">=4",
     "npm": ">=2"
   },
   "files": [
     "bin",
-    "src"
+    "lib",
+    "index.js",
+    "cli.js"
   ],
   "homepage": "https://github.com/semantic-release/semantic-release#readme",
   "keywords": [
@@ -67,7 +82,26 @@
     "version"
   ],
   "license": "MIT",
-  "main": "bin/semantic-release.js",
+  "main": "index.js",
+  "nyc": {
+    "include": [
+      "lib/**/*.js",
+      "index.js",
+      "cli.js"
+    ],
+    "reporter": [
+      "json",
+      "text",
+      "html"
+    ],
+    "all": true
+  },
+  "prettier": {
+    "printWidth": 120,
+    "singleQuote": true,
+    "bracketSpacing": false,
+    "trailingComma": "es5"
+  },
   "publishConfig": {
     "tag": "next"
   },
@@ -79,12 +113,22 @@
     "url": "git+https://github.com/semantic-release/semantic-release.git"
   },
   "scripts": {
-    "coverage": "nyc report",
-    "coverage:upload": "npm run coverage -s -- --reporter=text-lcov | coveralls",
-    "pretest": "standard",
-    "semantic-release": "./bin/semantic-release.js pre && npm publish && ./bin/semantic-release.js post",
-    "test": "npm run test:unit && npm run test:integration",
-    "test:integration": "tap --no-cov test/scenarios/*.js",
-    "test:unit": "nyc tap --no-cov test/specs/*.js"
+    "cm": "git-cz",
+    "codecov": "codecov -f coverage/coverage-final.json",
+    "lint": "xo",
+    "pretest": "npm run lint",
+    "semantic-release": "./bin/semantic-release.js",
+    "test": "nyc ava -v"
+  },
+  "xo": {
+    "extends": [
+      "prettier"
+    ],
+    "plugins": [
+      "prettier"
+    ],
+    "rules": {
+      "prettier/prettier": 2
+    }
   }
 }

src/lib/commits.js

@@ -1,79 +0,0 @@
-var childProcess = require('child_process')
-
-var log = require('npmlog')
-
-var SemanticReleaseError = require('@semantic-release/error')
-
-module.exports = function (config, cb) {
-  var lastRelease = config.lastRelease
-  var options = config.options
-  var branch = options.branch
-  var from = lastRelease.gitHead
-  var range = (from ? from + '..' : '') + 'HEAD'
-
-  if (!from) return extract()
-
-  childProcess.exec('git branch --no-color --contains ' + from, function (err, stdout) {
-    var inHistory = false
-    var branches
-
-    if (!err && stdout) {
-      branches = stdout.split('\n')
-      .map(function (result) {
-        if (branch === result.replace('*', '').trim()) {
-          inHistory = true
-          return null
-        }
-        return result.trim()
-      })
-      .filter(function (branch) {
-        return !!branch
-      })
-    }
-
-    if (!inHistory) {
-      log.error('commits',
-        'The commit the last release of this package was derived from is not in the direct history of the "' + branch + '" branch.\n' +
-        'This means semantic-release can not extract the commits between now and then.\n' +
-        'This is usually caused by force pushing, releasing from an unrelated branch, or using an already existing package name.\n' +
-        'You can recover from this error by publishing manually or restoring the commit "' + from + '".' + (branches && branches.length
-        ? '\nHere is a list of branches that still contain the commit in question: \n * ' + branches.join('\n * ')
-        : ''
-      ))
-      return cb(new SemanticReleaseError('Commit not in history', 'ENOTINHISTORY'))
-    }
-
-    extract()
-  })
-
-  function extract () {
-    var child = childProcess.spawn('git', ['log', '-E', '--format=%H==SPLIT==%B==END==', range])
-    var stdout = ''
-    var err = ''
-
-    child.stdout.on('data', function (data) {
-      stdout += data
-    })
-
-    child.stderr.on('data', function (data) {
-      err += data
-    })
-
-    child.on('close', function (code) {
-      if (err || code) return cb(err)
-
-      cb(null, String(stdout).split('==END==\n')
-        .filter(function (raw) {
-          return !!raw.trim()
-        })
-        .map(function (raw) {
-          var data = raw.split('==SPLIT==')
-          return {
-            hash: data[0],
-            message: data[1]
-          }
-        })
-      )
-    })
-  }
-}

src/lib/get-registry.js

@@ -1,12 +0,0 @@
-module.exports = function (pkg, conf) {
-  if (pkg.publishConfig && pkg.publishConfig.registry) return pkg.publishConfig.registry
-
-  if (pkg.name[0] !== '@') return conf.get('registry') || 'https://registry.npmjs.org/'
-
-  var scope = pkg.name.split('/')[0]
-  var scopedRegistry = conf.get(scope + '/registry')
-
-  if (scopedRegistry) return scopedRegistry
-
-  return conf.get('registry') || 'https://registry.npmjs.org/'
-}

src/lib/plugin-noop.js

@@ -1,4 +0,0 @@
-/* istanbul ignore next */
-module.exports = function (config, options, cb) {
-  cb(null)
-}

src/lib/plugins.js

@@ -1,42 +0,0 @@
-var relative = require('require-relative')
-var series = require('run-series')
-
-var exports = module.exports = function (options) {
-  var plugins = {
-    analyzeCommits: exports.normalize(options.analyzeCommits, '@semantic-release/commit-analyzer'),
-    generateNotes: exports.normalize(options.generateNotes, '@semantic-release/release-notes-generator'),
-    getLastRelease: exports.normalize(options.getLastRelease, '@semantic-release/last-release-npm')
-  }
-
-  ;['verifyConditions', 'verifyRelease'].forEach(function (plugin) {
-    if (!Array.isArray(options[plugin])) {
-      plugins[plugin] = exports.normalize(
-        options[plugin],
-        plugin === 'verifyConditions'
-          ? '@semantic-release/condition-travis'
-          : './plugin-noop'
-      )
-      return
-    }
-
-    plugins[plugin] = function (pluginOptions, cb) {
-      var tasks = options[plugin].map(function (step) {
-        return exports.normalize(step, './plugin-noop').bind(null, pluginOptions)
-      })
-
-      series(tasks, cb)
-    }
-  })
-
-  return plugins
-}
-
-exports.normalize = function (pluginConfig, fallback) {
-  if (typeof pluginConfig === 'string') return relative(pluginConfig).bind(null, {})
-
-  if (pluginConfig && (typeof pluginConfig.path === 'string')) {
-    return relative(pluginConfig.path).bind(null, pluginConfig)
-  }
-
-  return require(fallback).bind(null, pluginConfig)
-}

src/lib/type.js

@@ -1,21 +0,0 @@
-var SemanticReleaseError = require('@semantic-release/error')
-
-module.exports = function (config, cb) {
-  var plugins = config.plugins
-  var lastRelease = config.lastRelease
-
-  plugins.analyzeCommits(config, function (err, type) {
-    if (err) return cb(err)
-
-    if (!type) {
-      return cb(new SemanticReleaseError(
-        'There are no relevant changes, so no new version is released.',
-        'ENOCHANGE'
-      ))
-    }
-
-    if (!lastRelease.version) return cb(null, 'initial')
-
-    cb(null, type)
-  })
-}

src/lib/verify.js

@@ -1,40 +0,0 @@
-var SemanticReleaseError = require('@semantic-release/error')
-
-module.exports = function (config) {
-  var pkg = config.pkg
-  var options = config.options
-  var env = config.env
-  var errors = []
-
-  if (!pkg.name) {
-    errors.push(new SemanticReleaseError(
-      'No "name" found in package.json.',
-      'ENOPKGNAME'
-    ))
-  }
-
-  if (!pkg.repository || !pkg.repository.url) {
-    errors.push(new SemanticReleaseError(
-      'No "repository" found in package.json.',
-      'ENOPKGREPO'
-    ))
-  }
-
-  if (options.debug) return errors
-
-  if (!options.githubToken) {
-    errors.push(new SemanticReleaseError(
-      'No github token specified.',
-      'ENOGHTOKEN'
-    ))
-  }
-
-  if (!(env.NPM_TOKEN || (env.NPM_OLD_TOKEN && env.NPM_EMAIL))) {
-    errors.push(new SemanticReleaseError(
-      'No npm token specified.',
-      'ENONPMTOKEN'
-    ))
-  }
-
-  return errors
-}

src/post.js

@@ -1,53 +0,0 @@
-var url = require('url')
-
-var gitHead = require('git-head')
-var GitHubApi = require('github')
-var parseSlug = require('parse-github-repo-url')
-
-module.exports = function (config, cb) {
-  var pkg = config.pkg
-  var options = config.options
-  var plugins = config.plugins
-  var ghConfig = options.githubUrl ? url.parse(options.githubUrl) : {}
-
-  var github = new GitHubApi({
-    port: ghConfig.port,
-    protocol: (ghConfig.protocol || '').split(':')[0] || null,
-    host: ghConfig.hostname,
-    pathPrefix: options.githubApiPathPrefix || null
-  })
-
-  plugins.generateNotes(config, function (err, log) {
-    if (err) return cb(err)
-
-    gitHead(function (err, hash) {
-      if (err) return cb(err)
-
-      var ghRepo = parseSlug(pkg.repository.url)
-      var release = {
-        owner: ghRepo[0],
-        repo: ghRepo[1],
-        name: 'v' + pkg.version,
-        tag_name: 'v' + pkg.version,
-        target_commitish: hash,
-        draft: !!options.debug,
-        body: log
-      }
-
-      if (options.debug && !options.githubToken) {
-        return cb(null, false, release)
-      }
-
-      github.authenticate({
-        type: 'token',
-        token: options.githubToken
-      })
-
-      github.repos.createRelease(release, function (err) {
-        if (err) return cb(err)
-
-        cb(null, true, release)
-      })
-    })
-  })
-}

src/pre.js

@@ -1,45 +0,0 @@
-var _ = require('lodash')
-var auto = require('run-auto')
-var semver = require('semver')
-
-var getCommits = require('./lib/commits')
-var getType = require('./lib/type')
-
-module.exports = function (config, cb) {
-  var plugins = config.plugins
-
-  auto({
-    lastRelease: plugins.getLastRelease.bind(null, config),
-    commits: ['lastRelease', function (results, cb) {
-      getCommits(_.assign({
-        lastRelease: results.lastRelease
-      }, config),
-      cb)
-    }],
-    type: ['commits', 'lastRelease', function (results, cb) {
-      getType(_.assign({
-        commits: results.commits,
-        lastRelease: results.lastRelease
-      }, config),
-      cb)
-    }]
-  }, function (err, results) {
-    if (err) return cb(err)
-
-    var nextRelease = {
-      type: results.type,
-      version: results.type === 'initial'
-        ? '1.0.0'
-        : semver.inc(results.lastRelease.version, results.type)
-    }
-
-    plugins.verifyRelease(_.assign({
-      commits: results.commits,
-      lastRelease: results.lastRelease,
-      nextRelease: nextRelease
-    }, config), function (err) {
-      if (err) return cb(err)
-      cb(null, nextRelease)
-    })
-  })
-}

test/fixtures/index.js

@@ -0,0 +1,2 @@
+module.exports = () => {};
+

test/fixtures/multi-plugin.js

@@ -0,0 +1,8 @@
+module.exports = {
+  verifyConditions: () => {},
+  getLastRelease: () => {},
+  analyzeCommits: () => {},
+  verifyRelease: () => {},
+  generateNotes: () => {},
+  publish: () => {},
+};

test/fixtures/plugin-error-inherited.js

@@ -0,0 +1,14 @@
+const SemanticReleaseError = require('@semantic-release/error');
+
+class InheritedError extends SemanticReleaseError {
+  constructor(message, code, newProperty) {
+    super(message);
+    Error.captureStackTrace(this, this.constructor);
+    this.name = this.constructor.name;
+    this.code = code;
+  }
+}
+
+module.exports = () => {
+  throw new InheritedError('Inherited error', 'EINHERITED');
+};

test/fixtures/plugin-error.js

@@ -0,0 +1,5 @@
+module.exports = () => {
+  const error = new Error('a');
+  error.errorProperty = 'errorProperty';
+  throw error;
+};

test/fixtures/plugin-noop.js

@@ -0,0 +1 @@
+module.exports = () => {};

test/fixtures/plugin-result-config.js

@@ -0,0 +1 @@
+module.exports = (pluginConfig, options) => ({pluginConfig, options});

test/get-commits.test.js

@@ -0,0 +1,464 @@
+import test from 'ava';
+import {stub} from 'sinon';
+import getCommits from '../lib/get-commits';
+import {
+  gitRepo,
+  gitCommits,
+  gitCheckout,
+  gitTagVersion,
+  gitShallowClone,
+  gitTags,
+  gitLog,
+  gitDetachedHead,
+} from './helpers/git-utils';
+
+// Save the current working diretory
+const cwd = process.cwd();
+
+test.beforeEach(t => {
+  // Stub the logger functions
+  t.context.log = stub();
+  t.context.error = stub();
+  t.context.logger = {log: t.context.log, error: t.context.error};
+});
+
+test.afterEach.always(() => {
+  // Restore the current working directory
+  process.chdir(cwd);
+});
+
+test.serial('Get all commits when there is no last release', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  const commits = await gitCommits(['First', 'Second']);
+
+  // Retrieve the commits with the commits module
+  const result = await getCommits({}, 'master', t.context.logger);
+
+  // Verify the commits created and retrieved by the module are identical
+  t.is(result.commits.length, 2);
+  t.is(result.commits[0].hash.substring(0, 7), commits[0].hash);
+  t.is(result.commits[0].message, commits[0].message);
+  t.truthy(result.commits[0].committerDate);
+  t.truthy(result.commits[0].author.name);
+  t.truthy(result.commits[0].committer.name);
+  t.is(result.commits[1].hash.substring(0, 7), commits[1].hash);
+  t.is(result.commits[1].message, commits[1].message);
+  t.truthy(result.commits[1].committerDate);
+  t.truthy(result.commits[1].author.name);
+  t.truthy(result.commits[1].committer.name);
+  // Verify the last release is returned and updated
+  t.truthy(result.lastRelease);
+  t.falsy(result.lastRelease.gitHead);
+  t.falsy(result.lastRelease.version);
+  t.falsy(result.lastRelease.gitTag);
+});
+
+test.serial('Get all commits with gitTags', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  let commits = await gitCommits(['First']);
+  // Create the tag corresponding to version 1.0.0
+  await gitTagVersion('v1.0.0');
+  // Add new commits to the master branch
+  commits = (await gitCommits(['Second'])).concat(commits);
+
+  // Retrieve the commits with the commits module
+  const result = await getCommits({}, 'master', t.context.logger);
+  // Verify the commits created and retrieved by the module are identical
+  t.is(result.commits.length, 2);
+  t.is(result.commits[0].hash.substring(0, 7), commits[0].hash);
+  t.is(result.commits[0].message, commits[0].message);
+  t.truthy(result.commits[0].committerDate);
+  t.truthy(result.commits[0].author.name);
+  t.truthy(result.commits[0].committer.name);
+  t.is(result.commits[0].gitTags, '(HEAD -> master)');
+  t.is(result.commits[1].hash.substring(0, 7), commits[1].hash);
+  t.is(result.commits[1].message, commits[1].message);
+  t.truthy(result.commits[1].committerDate);
+  t.truthy(result.commits[1].author.name);
+  t.truthy(result.commits[1].committer.name);
+  t.is(result.commits[1].gitTags, '(tag: v1.0.0)');
+});
+
+test.serial('Get all commits when there is no last release, including the ones not in the shallow clone', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  const repo = await gitRepo();
+  // Add commits to the master branch
+  const commits = await gitCommits(['First', 'Second']);
+  // Create a shallow clone with only 1 commit
+  await gitShallowClone(repo);
+
+  // Verify the shallow clone contains only one commit
+  t.is((await gitLog()).length, 1);
+
+  // Retrieve the commits with the commits module
+  const result = await getCommits({}, 'master', t.context.logger);
+
+  // Verify the commits created and retrieved by the module are identical
+  t.is(result.commits.length, 2);
+  t.is(result.commits[0].hash.substring(0, 7), commits[0].hash);
+  t.is(result.commits[0].message, commits[0].message);
+  t.truthy(result.commits[0].committerDate);
+  t.truthy(result.commits[0].author.name);
+  t.truthy(result.commits[0].committer.name);
+  t.is(result.commits[1].hash.substring(0, 7), commits[1].hash);
+  t.is(result.commits[1].message, commits[1].message);
+  t.truthy(result.commits[1].committerDate);
+  t.truthy(result.commits[1].author.name);
+  t.truthy(result.commits[1].committer.name);
+  // Verify the last release is returned and updated
+  t.truthy(result.lastRelease);
+  t.falsy(result.lastRelease.gitHead);
+  t.falsy(result.lastRelease.version);
+  t.falsy(result.lastRelease.gitTag);
+});
+
+test.serial('Get all commits since gitHead (from lastRelease)', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  const commits = await gitCommits(['First', 'Second', 'Third']);
+
+  // Retrieve the commits with the commits module, since commit 'First'
+  const result = await getCommits({gitHead: commits[commits.length - 1].hash}, 'master', t.context.logger);
+
+  // Verify the commits created and retrieved by the module are identical
+  t.is(result.commits.length, 2);
+  t.is(result.commits[0].hash.substring(0, 7), commits[0].hash);
+  t.is(result.commits[0].message, commits[0].message);
+  t.truthy(result.commits[0].committerDate);
+  t.truthy(result.commits[0].author.name);
+  t.truthy(result.commits[0].committer.name);
+  t.is(result.commits[1].hash.substring(0, 7), commits[1].hash);
+  t.is(result.commits[1].message, commits[1].message);
+  t.truthy(result.commits[1].committerDate);
+  t.truthy(result.commits[1].author.name);
+  t.truthy(result.commits[1].committer.name);
+  // Verify the last release is returned and updated
+  t.truthy(result.lastRelease);
+  t.is(result.lastRelease.gitHead, commits[commits.length - 1].hash);
+  t.falsy(result.lastRelease.version);
+  t.falsy(result.lastRelease.gitTag);
+});
+
+test.serial('Get all commits since gitHead (from lastRelease) on a detached head repo', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  const repo = await gitRepo();
+  // Add commits to the master branch
+  const commits = await gitCommits(['First', 'Second', 'Third']);
+  // Create a detached head repo at commit 'feat: Second'
+  await gitDetachedHead(repo, commits[1].hash);
+
+  // Retrieve the commits with the commits module, since commit 'First'
+  const result = await getCommits({gitHead: commits[commits.length - 1].hash}, 'master', t.context.logger);
+
+  // Verify the module retrieved only the commit 'feat: Second' (included in the detached and after 'fix: First')
+  t.is(result.commits.length, 1);
+  t.is(result.commits[0].hash.substring(0, 7), commits[1].hash);
+  t.is(result.commits[0].message, commits[1].message);
+  t.truthy(result.commits[0].committerDate);
+  t.truthy(result.commits[0].author.name);
+  t.truthy(result.commits[0].committer.name);
+  // Verify the last release is returned and updated
+  t.truthy(result.lastRelease);
+  t.is(result.lastRelease.gitHead, commits[commits.length - 1].hash);
+  t.falsy(result.lastRelease.version);
+  t.falsy(result.lastRelease.gitTag);
+});
+
+test.serial('Get all commits since gitHead (from tag) ', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  let commits = await gitCommits(['First']);
+  // Create the tag corresponding to version 1.0.0
+  await gitTagVersion('1.0.0');
+  // Add new commits to the master branch
+  commits = (await gitCommits(['Second', 'Third'])).concat(commits);
+
+  // Retrieve the commits with the commits module, since commit 'First' (associated with tag v1.0.0)
+  const result = await getCommits({version: '1.0.0', gitHead: 'missing_ref'}, 'master', t.context.logger);
+
+  // Verify the commits created and retrieved by the module are identical
+  t.is(result.commits.length, 2);
+  t.is(result.commits[0].hash.substring(0, 7), commits[0].hash);
+  t.is(result.commits[0].message, commits[0].message);
+  t.truthy(result.commits[0].committerDate);
+  t.truthy(result.commits[0].author.name);
+  t.truthy(result.commits[0].committer.name);
+  t.is(result.commits[1].hash.substring(0, 7), commits[1].hash);
+  t.is(result.commits[1].message, commits[1].message);
+  t.truthy(result.commits[1].committerDate);
+  t.truthy(result.commits[1].author.name);
+  t.truthy(result.commits[1].committer.name);
+  // Verify the last release is returned and updated
+  t.truthy(result.lastRelease);
+  t.is(result.lastRelease.gitHead.substring(0, 7), commits[commits.length - 1].hash);
+  t.is(result.lastRelease.gitTag, '1.0.0');
+  t.is(result.lastRelease.version, '1.0.0');
+});
+
+test.serial('Get all commits since gitHead (from tag) on a detached head repo', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  const repo = await gitRepo();
+  // Add commits to the master branch
+  let commits = await gitCommits(['First']);
+  // Create the tag corresponding to version 1.0.0
+  await gitTagVersion('1.0.0');
+  // Add new commits to the master branch
+  commits = (await gitCommits(['Second', 'Third'])).concat(commits);
+  // Create a detached head repo at commit 'feat: Second'
+  await gitDetachedHead(repo, commits[1].hash);
+
+  // Retrieve the commits with the commits module, since commit 'First' (associated with tag 1.0.0)
+  const result = await getCommits({version: '1.0.0', gitHead: 'missing_ref'}, 'master', t.context.logger);
+
+  // Verify the module retrieved only the commit 'feat: Second' (included in the detached and after 'fix: First')
+  t.is(result.commits.length, 1);
+  t.is(result.commits[0].hash.substring(0, 7), commits[1].hash);
+  t.is(result.commits[0].message, commits[1].message);
+  t.truthy(result.commits[0].committerDate);
+  t.truthy(result.commits[0].author.name);
+  t.truthy(result.commits[0].committer.name);
+  // Verify the last release is returned and updated
+  t.truthy(result.lastRelease);
+  t.is(result.lastRelease.gitHead.substring(0, 7), commits[commits.length - 1].hash);
+  t.is(result.lastRelease.gitTag, '1.0.0');
+  t.is(result.lastRelease.version, '1.0.0');
+});
+
+test.serial('Get all commits since gitHead (from tag formatted like v<version>) ', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  let commits = await gitCommits(['First']);
+  // Create the tag corresponding to version 1.0.0
+  await gitTagVersion('v1.0.0');
+  // Add new commits to the master branch
+  commits = (await gitCommits(['Second', 'Third'])).concat(commits);
+
+  // Retrieve the commits with the commits module, since commit 'First' (associated with tag v1.0.0)
+  const result = await getCommits({version: '1.0.0', gitHead: 'missing_ref'}, 'master', t.context.logger);
+
+  // Verify the commits created and retrieved by the module are identical
+  t.is(result.commits.length, 2);
+  t.is(result.commits[0].hash.substring(0, 7), commits[0].hash);
+  t.is(result.commits[0].message, commits[0].message);
+  t.truthy(result.commits[0].committerDate);
+  t.truthy(result.commits[0].author.name);
+  t.truthy(result.commits[0].committer.name);
+  t.is(result.commits[1].hash.substring(0, 7), commits[1].hash);
+  t.is(result.commits[1].message, commits[1].message);
+  t.truthy(result.commits[1].committerDate);
+  t.truthy(result.commits[1].author.name);
+  t.truthy(result.commits[1].committer.name);
+  // Verify the last release is returned and updated
+  t.truthy(result.lastRelease);
+  t.is(result.lastRelease.gitHead.substring(0, 7), commits[commits.length - 1].hash);
+  t.is(result.lastRelease.gitTag, 'v1.0.0');
+  t.is(result.lastRelease.version, '1.0.0');
+});
+test.serial('Get all commits since gitHead, when gitHead is missing from the shallow clone', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  const repo = await gitRepo();
+  // Add commits to the master branch
+  const commits = await gitCommits(['First', 'Second', 'Third']);
+  // Create a shallow clone with only 1 commit and no tags
+  await gitShallowClone(repo);
+
+  // Retrieve the commits with the commits module, since commit 'First'
+  const result = await getCommits(
+    {version: '1.0.0', gitHead: commits[commits.length - 1].hash},
+    'master',
+    t.context.logger
+  );
+
+  // Verify the commits created and retrieved by the module are identical
+  t.is(result.commits.length, 2);
+  t.is(result.commits[0].hash.substring(0, 7), commits[0].hash);
+  t.is(result.commits[0].message, commits[0].message);
+  t.truthy(result.commits[0].committerDate);
+  t.truthy(result.commits[0].author.name);
+  t.truthy(result.commits[0].committer.name);
+  t.is(result.commits[1].hash.substring(0, 7), commits[1].hash);
+  t.is(result.commits[1].message, commits[1].message);
+  t.truthy(result.commits[1].committerDate);
+  t.truthy(result.commits[1].author.name);
+  t.truthy(result.commits[1].committer.name);
+  // Verify the last release is returned and updated
+  t.truthy(result.lastRelease);
+  t.is(result.lastRelease.gitHead.substring(0, 7), commits[commits.length - 1].hash);
+  t.is(result.lastRelease.version, '1.0.0');
+  t.falsy(result.lastRelease.gitTag);
+});
+
+test.serial('Get all commits since gitHead from tag, when tags is missing from the shallow clone', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  const repo = await gitRepo();
+  // Add commits to the master branch
+  let commits = await gitCommits(['First']);
+  // Create the tag corresponding to version 1.0.0
+  await gitTagVersion('v1.0.0');
+  // Add new commits to the master branch
+  commits = (await gitCommits(['Second', 'Third'])).concat(commits);
+  // Create a shallow clone with only 1 commit and no tags
+  await gitShallowClone(repo);
+
+  // Verify the shallow clone does not contains any tags
+  t.is((await gitTags()).length, 0);
+
+  // Retrieve the commits with the commits module, since commit 'First' (associated with tag v1.0.0)
+  const result = await getCommits({version: '1.0.0', gitHead: 'missing_ref'}, 'master', t.context.logger);
+
+  // Verify the commits created and retrieved by the module are identical
+  t.is(result.commits.length, 2);
+  t.is(result.commits[0].hash.substring(0, 7), commits[0].hash);
+  t.is(result.commits[0].message, commits[0].message);
+  t.truthy(result.commits[0].committerDate);
+  t.truthy(result.commits[0].author.name);
+  t.truthy(result.commits[0].committer.name);
+  t.is(result.commits[1].hash.substring(0, 7), commits[1].hash);
+  t.is(result.commits[1].message, commits[1].message);
+  t.truthy(result.commits[1].committerDate);
+  t.truthy(result.commits[1].author.name);
+  t.truthy(result.commits[1].committer.name);
+  // Verify the last release is returned and updated
+  t.truthy(result.lastRelease);
+  t.is(result.lastRelease.gitHead.substring(0, 7), commits[commits.length - 1].hash);
+  t.is(result.lastRelease.gitTag, 'v1.0.0');
+  t.is(result.lastRelease.version, '1.0.0');
+});
+
+test.serial('Return empty array if lastRelease.gitHead is the last commit', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  const commits = await gitCommits(['First', 'Second']);
+
+  // Retrieve the commits with the commits module, since commit 'Second' (therefore none)
+  const result = await getCommits({gitHead: commits[0].hash, version: '1.0.0'}, 'master', t.context.logger);
+
+  // Verify no commit is retrieved
+  t.deepEqual(result.commits, []);
+  // Verify the last release is returned and updated
+  t.truthy(result.lastRelease);
+  t.is(result.lastRelease.gitHead.substring(0, 7), commits[0].hash);
+  t.is(result.lastRelease.version, '1.0.0');
+  t.falsy(result.lastRelease.gitTag);
+});
+
+test.serial('Return empty array if there is no commits', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+
+  // Retrieve the commits with the commits module
+  const result = await getCommits({}, 'master', t.context.logger);
+
+  // Verify no commit is retrieved
+  t.deepEqual(result.commits, []);
+  // Verify the last release is returned and updated
+  t.truthy(result.lastRelease);
+  t.falsy(result.lastRelease.gitHead);
+  t.falsy(result.lastRelease.version);
+});
+
+test.serial('Throws ENOTINHISTORY error if gitHead is not in history', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  await gitCommits(['First', 'Second']);
+
+  // Retrieve the commits with the commits module
+  const error = await t.throws(getCommits({gitHead: 'notinhistory'}, 'master', t.context.logger));
+
+  // Verify error code and type
+  t.is(error.code, 'ENOTINHISTORY');
+  t.is(error.name, 'SemanticReleaseError');
+  // Verify the log function has been called with a message mentionning the branch
+  t.regex(t.context.error.args[0][0], /history of the "master" branch/);
+  // Verify the log function has been called with a message mentionning the missing gitHead
+  t.regex(t.context.error.args[0][0], /restoring the commit "notinhistory"/);
+});
+
+test.serial('Throws ENOTINHISTORY error if gitHead is not in branch history but present in others', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  await gitCommits(['First', 'Second']);
+  // Create the new branch 'other-branch' from master
+  await gitCheckout('other-branch');
+  // Add commits to the 'other-branch' branch
+  const commitsBranch = await gitCommits(['Third', 'Fourth']);
+  await gitCheckout('master', false);
+
+  // Retrieve the commits with the commits module
+  const error = await t.throws(
+    getCommits({version: '1.0.1', gitHead: commitsBranch[0].hash}, 'master', t.context.logger)
+  );
+
+  // Verify error code and type
+  t.is(error.code, 'ENOTINHISTORY');
+  t.is(error.name, 'SemanticReleaseError');
+  // Verify the log function has been called with a message mentionning the branch
+  t.regex(t.context.error.args[0][0], /history of the "master" branch/);
+  // Verify the log function has been called with a message mentionning the missing gitHead
+  t.regex(t.context.error.args[0][0], new RegExp(`restoring the commit "${commitsBranch[0].hash}"`));
+});
+
+test.serial('Throws ENOTINHISTORY error if gitHead is not in detached head but present in other branch', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  const repo = await gitRepo();
+  // Add commit to the master branch
+  await gitCommits(['First']);
+  // Create the new branch 'other-branch' from master
+  await gitCheckout('other-branch');
+  // Add commits to the 'other-branch' branch
+  const commitsBranch = await gitCommits(['Second', 'Third']);
+  await gitCheckout('master', false);
+  // Add new commit to master branch
+  const commitsMaster = await gitCommits(['Fourth']);
+  // Create a detached head repo at commit 'Fourth'
+  await gitDetachedHead(repo, commitsMaster[0].hash);
+
+  // Retrieve the commits with the commits module, since commit 'Second'
+  const error = await t.throws(
+    getCommits({version: '1.0.1', gitHead: commitsBranch[0].hash}, 'master', t.context.logger)
+  );
+
+  // Verify error code and type
+  t.is(error.code, 'ENOTINHISTORY');
+  t.is(error.name, 'SemanticReleaseError');
+  // Verify the log function has been called with a message mentionning the branch
+  t.regex(t.context.error.args[0][0], /history of the "master" branch/);
+  // Verify the log function has been called with a message mentionning the missing gitHead
+  t.regex(t.context.error.args[0][0], new RegExp(`restoring the commit "${commitsBranch[0].hash}"`));
+});
+
+test.serial('Throws ENOTINHISTORY error when a tag is not in branch history but present in others', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  await gitCommits(['First', 'Second']);
+  // Create the new branch 'other-branch' from master
+  await gitCheckout('other-branch');
+  // Add commits to the 'other-branch' branch
+  await gitCommits(['Third']);
+  // Create the tag corresponding to version 1.0.0
+  const shaTag = await gitTagVersion('v1.0.0');
+  await gitCheckout('master', false);
+  // Add new commit to the master branch
+  await gitCommits(['Forth']);
+
+  // Retrieve the commits with the commits module
+  const error = await t.throws(getCommits({version: '1.0.0', gitHead: shaTag}, 'master', t.context.logger));
+  // Verify error code and type
+  t.is(error.code, 'ENOTINHISTORY');
+  t.is(error.name, 'SemanticReleaseError');
+  // Verify the log function has been called with a message mentionning the branch
+  t.regex(t.context.error.args[0][0], /history of the "master" branch/);
+  // Verify the log function has been called with a message mentionning the missing gitHead
+  t.regex(t.context.error.args[0][0], new RegExp(`restoring the commit "${shaTag}"`));
+});

test/get-config.test.js

@@ -0,0 +1,452 @@
+import {format} from 'util';
+import test from 'ava';
+import {writeFile, outputJson} from 'fs-extra';
+import {omit} from 'lodash';
+import proxyquire from 'proxyquire';
+import {stub} from 'sinon';
+import yaml from 'js-yaml';
+import {gitRepo, gitCommits, gitShallowClone, gitAddConfig} from './helpers/git-utils';
+
+// Save the current process.env
+const envBackup = Object.assign({}, process.env);
+// Save the current working diretory
+const cwd = process.cwd();
+
+test.beforeEach(t => {
+  t.context.plugins = stub().returns({});
+  t.context.getConfig = proxyquire('../lib/get-config', {'./plugins': t.context.plugins});
+});
+
+test.afterEach.always(() => {
+  // Restore process.env
+  process.env = envBackup;
+  // Restore the current working directory
+  process.chdir(cwd);
+});
+
+test.serial('Default values, reading repositoryUrl from package.json', async t => {
+  const pkg = {repository: 'git@package.com:owner/module.git'};
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  await gitCommits(['First']);
+  // Add remote.origin.url config
+  await gitAddConfig('remote.origin.url', 'git@repo.com:owner/module.git');
+  // Create package.json in repository root
+  await outputJson('./package.json', pkg);
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the default options are set
+  t.is(options.branch, 'master');
+  t.is(options.repositoryUrl, 'git@package.com:owner/module.git');
+});
+
+test.serial('Default values, reading repositoryUrl from repo if not set in package.json', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add remote.origin.url config
+  await gitAddConfig('remote.origin.url', 'git@repo.com:owner/module.git');
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the default options are set
+  t.is(options.branch, 'master');
+  t.is(options.repositoryUrl, 'git@repo.com:owner/module.git');
+});
+
+test.serial('Default values, reading repositoryUrl (http url) from package.json if not set in repo', async t => {
+  const pkg = {repository: 'git+https://hostname.com/owner/module.git'};
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json in repository root
+  await outputJson('./package.json', pkg);
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the default options are set
+  t.is(options.branch, 'master');
+  t.is(options.repositoryUrl, pkg.repository);
+});
+
+test.serial('Read options from package.json', async t => {
+  const release = {
+    analyzeCommits: 'analyzeCommits',
+    generateNotes: 'generateNotes',
+    getLastRelease: {path: 'getLastRelease', param: 'getLastRelease_param'},
+    branch: 'test_branch',
+    repositoryUrl: 'git+https://hostname.com/owner/module.git',
+  };
+
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json in repository root
+  await outputJson('./package.json', {release});
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the options contains the plugin config from package.json
+  t.deepEqual(options, release);
+  // Verify the plugins module is called with the plugin options from package.json
+  t.deepEqual(t.context.plugins.args[0][0], release);
+});
+
+test.serial('Read options from .releaserc.yml', async t => {
+  const release = {
+    getLastRelease: {path: 'getLastRelease', param: 'getLastRelease_param'},
+    branch: 'test_branch',
+    repositoryUrl: 'git+https://hostname.com/owner/module.git',
+  };
+
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json in repository root
+  await writeFile('.releaserc.yml', yaml.safeDump(release));
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the options contains the plugin config from package.json
+  t.deepEqual(options, release);
+  // Verify the plugins module is called with the plugin options from package.json
+  t.deepEqual(t.context.plugins.args[0][0], release);
+});
+
+test.serial('Read options from .releaserc.json', async t => {
+  const release = {
+    getLastRelease: {path: 'getLastRelease', param: 'getLastRelease_param'},
+    branch: 'test_branch',
+    repositoryUrl: 'git+https://hostname.com/owner/module.git',
+  };
+
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json in repository root
+  await outputJson('.releaserc.json', release);
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the options contains the plugin config from package.json
+  t.deepEqual(options, release);
+  // Verify the plugins module is called with the plugin options from package.json
+  t.deepEqual(t.context.plugins.args[0][0], release);
+});
+
+test.serial('Read options from .releaserc.js', async t => {
+  const release = {
+    getLastRelease: {path: 'getLastRelease', param: 'getLastRelease_param'},
+    branch: 'test_branch',
+    repositoryUrl: 'git+https://hostname.com/owner/module.git',
+  };
+
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json in repository root
+  await writeFile('.releaserc.js', `module.exports = ${JSON.stringify(release)}`);
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the options contains the plugin config from package.json
+  t.deepEqual(options, release);
+  // Verify the plugins module is called with the plugin options from package.json
+  t.deepEqual(t.context.plugins.args[0][0], release);
+});
+
+test.serial('Read options from release.config.js', async t => {
+  const release = {
+    getLastRelease: {path: 'getLastRelease', param: 'getLastRelease_param'},
+    branch: 'test_branch',
+    repositoryUrl: 'git+https://hostname.com/owner/module.git',
+  };
+
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json in repository root
+  await writeFile('release.config.js', `module.exports = ${JSON.stringify(release)}`);
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the options contains the plugin config from package.json
+  t.deepEqual(options, release);
+  // Verify the plugins module is called with the plugin options from package.json
+  t.deepEqual(t.context.plugins.args[0][0], release);
+});
+
+test.serial('Prioritise CLI/API parameters over file configuration and git repo', async t => {
+  const release = {
+    getLastRelease: {path: 'getLastRelease', param: 'getLastRelease_pkg'},
+    branch: 'branch_pkg',
+  };
+  const options = {
+    getLastRelease: {path: 'getLastRelease', param: 'getLastRelease_cli'},
+    branch: 'branch_cli',
+    repositoryUrl: 'http://cli-url.com/owner/package',
+  };
+  const pkg = {release, repository: 'git@hostname.com:owner/module.git'};
+  // Create a git repository, set the current working directory at the root of the repo
+  const repo = await gitRepo();
+  await gitCommits(['First']);
+  // Create a clone
+  await gitShallowClone(repo);
+  // Create package.json in repository root
+  await outputJson('./package.json', pkg);
+
+  const result = await t.context.getConfig(options);
+
+  // Verify the options contains the plugin config from CLI/API
+  t.deepEqual(result.options, options);
+  // Verify the plugins module is called with the plugin options from CLI/API
+  t.deepEqual(t.context.plugins.args[0][0], options);
+});
+
+test.serial('Read configuration from file path in "extends"', async t => {
+  const release = {extends: './shareable.json'};
+  const shareable = {
+    analyzeCommits: 'analyzeCommits',
+    generateNotes: 'generateNotes',
+    getLastRelease: {path: 'getLastRelease', param: 'getLastRelease_param'},
+    branch: 'test_branch',
+    repositoryUrl: 'git+https://hostname.com/owner/module.git',
+  };
+
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json and shareable.json in repository root
+  await outputJson('./package.json', {release});
+  await outputJson('./shareable.json', shareable);
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the options contains the plugin config from shareable.json
+  t.deepEqual(options, shareable);
+  // Verify the plugins module is called with the plugin options from shareable.json
+  t.deepEqual(t.context.plugins.args[0][0], shareable);
+  t.deepEqual(t.context.plugins.args[0][1], {
+    analyzeCommits: './shareable.json',
+    generateNotes: './shareable.json',
+    getLastRelease: './shareable.json',
+  });
+});
+
+test.serial('Read configuration from module path in "extends"', async t => {
+  const release = {extends: 'shareable'};
+  const shareable = {
+    analyzeCommits: 'analyzeCommits',
+    generateNotes: 'generateNotes',
+    getLastRelease: {path: 'getLastRelease', param: 'getLastRelease_param'},
+    branch: 'test_branch',
+    repositoryUrl: 'git+https://hostname.com/owner/module.git',
+  };
+
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json and shareable.json in repository root
+  await outputJson('./package.json', {release});
+  await outputJson('./node_modules/shareable/index.json', shareable);
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the options contains the plugin config from shareable.json
+  t.deepEqual(options, shareable);
+  // Verify the plugins module is called with the plugin options from shareable.json
+  t.deepEqual(t.context.plugins.args[0][0], shareable);
+  t.deepEqual(t.context.plugins.args[0][1], {
+    analyzeCommits: 'shareable',
+    generateNotes: 'shareable',
+    getLastRelease: 'shareable',
+  });
+});
+
+test.serial('Read configuration from an array of paths in "extends"', async t => {
+  const release = {extends: ['./shareable1.json', './shareable2.json']};
+  const shareable1 = {
+    analyzeCommits: 'analyzeCommits1',
+    getLastRelease: {path: 'getLastRelease1', param: 'getLastRelease_param1'},
+    branch: 'test_branch',
+    repositoryUrl: 'git+https://hostname.com/owner/module.git',
+  };
+
+  const shareable2 = {
+    analyzeCommits: 'analyzeCommits2',
+    generateNotes: 'generateNotes2',
+    getLastRelease: {path: 'getLastRelease2', param: 'getLastRelease_param2'},
+    branch: 'test_branch',
+  };
+
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json and shareable.json in repository root
+  await outputJson('./package.json', {release});
+  await outputJson('./shareable1.json', shareable1);
+  await outputJson('./shareable2.json', shareable2);
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the options contains the plugin config from shareable1.json and shareable2.json
+  t.deepEqual(options, {...shareable1, ...shareable2});
+  // Verify the plugins module is called with the plugin options from shareable1.json and shareable2.json
+  t.deepEqual(t.context.plugins.args[0][0], {...shareable1, ...shareable2});
+  t.deepEqual(t.context.plugins.args[0][1], {
+    analyzeCommits1: './shareable1.json',
+    analyzeCommits2: './shareable2.json',
+    generateNotes2: './shareable2.json',
+    getLastRelease1: './shareable1.json',
+    getLastRelease2: './shareable2.json',
+  });
+});
+
+test.serial('Prioritize configuration from config file over "extends"', async t => {
+  const release = {
+    extends: './shareable.json',
+    branch: 'test_pkg',
+    generateNotes: 'generateNotes',
+    publish: [{path: 'publishPkg', param: 'publishPkg_param'}],
+  };
+  const shareable = {
+    analyzeCommits: 'analyzeCommits',
+    generateNotes: 'generateNotesShareable',
+    publish: [{path: 'publishShareable', param: 'publishShareable_param'}],
+    branch: 'test_branch',
+    repositoryUrl: 'git+https://hostname.com/owner/module.git',
+  };
+
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json and shareable.json in repository root
+  await outputJson('./package.json', {release});
+  await outputJson('./shareable.json', shareable);
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the options contains the plugin config from package.json and shareable.json
+  t.deepEqual(options, omit({...shareable, ...release}, 'extends'));
+  // Verify the plugins module is called with the plugin options from package.json and shareable.json
+  t.deepEqual(t.context.plugins.args[0][0], omit({...shareable, ...release}, 'extends'));
+  t.deepEqual(t.context.plugins.args[0][1], {
+    analyzeCommits: './shareable.json',
+    generateNotesShareable: './shareable.json',
+    publishShareable: './shareable.json',
+  });
+});
+
+test.serial('Prioritize configuration from cli/API options over "extends"', async t => {
+  const opts = {
+    extends: './shareable2.json',
+    branch: 'branch_opts',
+    publish: [{path: 'publishOpts', param: 'publishOpts_param'}],
+    repositoryUrl: 'git+https://hostname.com/owner/module.git',
+  };
+  const release = {
+    extends: './shareable1.json',
+    branch: 'branch_pkg',
+    generateNotes: 'generateNotes',
+    publish: [{path: 'publishPkg', param: 'publishPkg_param'}],
+  };
+  const shareable1 = {
+    analyzeCommits: 'analyzeCommits1',
+    generateNotes: 'generateNotesShareable1',
+    publish: [{path: 'publishShareable', param: 'publishShareable_param1'}],
+    branch: 'test_branch1',
+    repositoryUrl: 'git+https://hostname.com/owner/module.git',
+  };
+  const shareable2 = {
+    analyzeCommits: 'analyzeCommits2',
+    publish: [{path: 'publishShareable', param: 'publishShareable_param2'}],
+    branch: 'test_branch2',
+  };
+
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json, shareable1.json and shareable2.json in repository root
+  await outputJson('./package.json', {release});
+  await outputJson('./shareable1.json', shareable1);
+  await outputJson('./shareable2.json', shareable2);
+
+  const {options} = await t.context.getConfig(opts);
+
+  // Verify the options contains the plugin config from package.json and shareable2.json
+  t.deepEqual(options, omit({...shareable2, ...release, ...opts}, 'extends'));
+  // Verify the plugins module is called with the plugin options from package.json and shareable2.json
+  t.deepEqual(t.context.plugins.args[0][0], omit({...shareable2, ...release, ...opts}, 'extends'));
+});
+
+test.serial('Allow to unset properties defined in shareable config with "null"', async t => {
+  const release = {
+    extends: './shareable.json',
+    getLastRelease: null,
+    branch: 'test_branch',
+    repositoryUrl: 'git+https://hostname.com/owner/module.git',
+  };
+  const shareable = {
+    generateNotes: 'generateNotes',
+    getLastRelease: {path: 'getLastRelease', param: 'getLastRelease_param'},
+  };
+
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json and shareable.json in repository root
+  await outputJson('./package.json', {release});
+  await outputJson('./shareable.json', shareable);
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the options contains the plugin config from shareable.json
+  t.deepEqual(options, {...omit(shareable, 'getLastRelease'), ...omit(release, ['extends', 'getLastRelease'])});
+  // Verify the plugins module is called with the plugin options from shareable.json
+  t.deepEqual(t.context.plugins.args[0][0], {
+    ...omit(shareable, 'getLastRelease'),
+    ...omit(release, ['extends', 'getLastRelease']),
+  });
+  t.deepEqual(t.context.plugins.args[0][1], {
+    generateNotes: './shareable.json',
+    getLastRelease: './shareable.json',
+  });
+});
+
+test.serial('Allow to unset properties defined in shareable config with "undefined"', async t => {
+  const release = {
+    extends: './shareable.json',
+    getLastRelease: undefined,
+    branch: 'test_branch',
+    repositoryUrl: 'git+https://hostname.com/owner/module.git',
+  };
+  const shareable = {
+    generateNotes: 'generateNotes',
+    getLastRelease: {path: 'getLastRelease', param: 'getLastRelease_param'},
+  };
+
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json and release.config.js in repository root
+  // await outputJson('./package.json', {release});
+  await writeFile('release.config.js', `module.exports = ${format(release)}`);
+  await outputJson('./shareable.json', shareable);
+
+  const {options} = await t.context.getConfig();
+
+  // Verify the options contains the plugin config from shareable.json
+  t.deepEqual(options, {...omit(shareable, 'getLastRelease'), ...omit(release, ['extends', 'getLastRelease'])});
+  // Verify the plugins module is called with the plugin options from shareable.json
+  t.deepEqual(t.context.plugins.args[0][0], {
+    ...omit(shareable, 'getLastRelease'),
+    ...omit(release, ['extends', 'getLastRelease']),
+  });
+  t.deepEqual(t.context.plugins.args[0][1], {
+    generateNotes: './shareable.json',
+    getLastRelease: './shareable.json',
+  });
+});
+
+test.serial('Throw an Error if one of the shareable config cannot be found', async t => {
+  const release = {extends: ['./shareable1.json', 'non-existing-path']};
+  const shareable = {analyzeCommits: 'analyzeCommits'};
+
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Create package.json and shareable.json in repository root
+  await outputJson('./package.json', {release});
+  await outputJson('./shareable1.json', shareable);
+
+  const error = await t.throws(t.context.getConfig(), Error);
+
+  t.is(error.message, "Cannot find module 'non-existing-path'");
+  t.is(error.code, 'MODULE_NOT_FOUND');
+});

test/get-next-version.test.js

@@ -0,0 +1,29 @@
+import test from 'ava';
+import {stub} from 'sinon';
+import getNextVersion from '../lib/get-next-version';
+
+test.beforeEach(t => {
+  // Stub the logger functions
+  t.context.log = stub();
+  t.context.logger = {log: t.context.log};
+});
+
+test('Increase version for patch release', t => {
+  const version = getNextVersion('patch', {version: '1.0.0'}, t.context.logger);
+  t.is(version, '1.0.1');
+});
+
+test('Increase version for minor release', t => {
+  const version = getNextVersion('minor', {version: '1.0.0'}, t.context.logger);
+  t.is(version, '1.1.0');
+});
+
+test('Increase version for major release', t => {
+  const version = getNextVersion('major', {version: '1.0.0'}, t.context.logger);
+  t.is(version, '2.0.0');
+});
+
+test('Return 1.0.0 if there is no previous release', t => {
+  const version = getNextVersion('minor', {}, t.context.logger);
+  t.is(version, '1.0.0');
+});

test/git.test.js

@@ -0,0 +1,128 @@
+import test from 'ava';
+import fileUrl from 'file-url';
+import {gitTagHead, gitCommitTag, isCommitInHistory, unshallow, gitHead, repoUrl} from '../lib/git';
+import {
+  gitRepo,
+  gitCommits,
+  gitCheckout,
+  gitTagVersion,
+  gitShallowClone,
+  gitLog,
+  gitAddConfig,
+} from './helpers/git-utils';
+
+// Save the current working diretory
+const cwd = process.cwd();
+
+test.afterEach.always(() => {
+  // Restore the current working directory
+  process.chdir(cwd);
+});
+
+test.serial('Get the last commit sha', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  const commits = await gitCommits(['First']);
+
+  const result = await gitHead();
+
+  t.is(result.substring(0, 7), commits[0].hash);
+});
+
+test.serial('Throw error if the last commit sha cannot be found', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+
+  await t.throws(gitHead(), Error);
+});
+
+test.serial('Unshallow repository', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  const repo = await gitRepo();
+  // Add commits to the master branch
+  await gitCommits(['First', 'Second']);
+  // Create a shallow clone with only 1 commit
+  await gitShallowClone(repo);
+
+  // Verify the shallow clone contains only one commit
+  t.is((await gitLog()).length, 1);
+
+  await unshallow();
+
+  // Verify the shallow clone contains all the commits
+  t.is((await gitLog()).length, 2);
+});
+
+test.serial('Do not throw error when unshallow a complete repository', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  await gitCommits(['First']);
+  await t.notThrows(unshallow());
+});
+
+test.serial('Verify if the commit `sha` is in the direct history of the current branch', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  const commits = await gitCommits(['First']);
+  // Create the new branch 'other-branch' from master
+  await gitCheckout('other-branch');
+  // Add commits to the 'other-branch' branch
+  const otherCommits = await gitCommits(['Second']);
+  await gitCheckout('master', false);
+
+  t.true(await isCommitInHistory(commits[0].hash));
+  t.false(await isCommitInHistory(otherCommits[0].hash));
+});
+
+test.serial('Get the tag associated with a commit sha or "null" if the commit does not exists', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  const commits = await gitCommits(['First']);
+  // Create the tag corresponding to version 1.0.0
+  await gitTagVersion('v1.0.0');
+
+  t.is(await gitCommitTag(commits[0].hash), 'v1.0.0');
+  t.falsy(await gitCommitTag('missing_sha'));
+});
+
+test.serial('Get the commit sha for a given tag or "null" if the tag does not exists', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  const commits = await gitCommits(['First']);
+  // Create the tag corresponding to version 1.0.0
+  await gitTagVersion('v1.0.0');
+
+  t.is((await gitTagHead('v1.0.0')).substring(0, 7), commits[0].hash);
+  t.falsy(await gitTagHead('missing_tag'));
+});
+
+test.serial('Return git remote repository url from config', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add remote.origin.url config
+  await gitAddConfig('remote.origin.url', 'git@hostname.com:owner/package.git');
+
+  t.is(await repoUrl(), 'git@hostname.com:owner/package.git');
+});
+
+test.serial('Return git remote repository url set while cloning', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  const repo = await gitRepo();
+  await gitCommits(['First']);
+  // Create a clone
+  await gitShallowClone(repo);
+
+  t.is(await repoUrl(), fileUrl(repo));
+});
+
+test.serial('Return "undefined" if git repository url is not set', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+
+  t.is(await repoUrl(), undefined);
+});

test/helpers/git-utils.js

@@ -0,0 +1,155 @@
+import tempy from 'tempy';
+import execa from 'execa';
+import fileUrl from 'file-url';
+import pReduce from 'p-reduce';
+
+/**
+ * Commit message informations.
+ *
+ * @typedef {Object} Commit
+ * @property {string} branch The commit branch.
+ * @property {string} hash The commit hash.
+ * @property {string} message The commit message.
+ */
+
+/**
+ * Create a temporary git repository and change the current working directory to the repository root.
+ *
+ * @return {string} The path of the repository.
+ */
+export async function gitRepo() {
+  const dir = tempy.directory();
+
+  process.chdir(dir);
+  await execa('git', ['init']);
+  await gitCheckout('master');
+  return dir;
+}
+
+/**
+ * Create commits on the current git repository.
+ *
+ * @param {Array<string>} messages commit messages.
+ *
+ * @returns {Array<Commit>} The created commits, in reverse order (to match `git log` order).
+ */
+export async function gitCommits(messages) {
+  return (await pReduce(
+    messages,
+    async (commits, msg) => {
+      const {stdout} = await execa('git', ['commit', '-m', msg, '--allow-empty', '--no-gpg-sign']);
+      const [, branch, hash, message] = /^\[(\w+)\(?.*?\)?(\w+)\] (.+)$/.exec(stdout);
+      commits.push({branch, hash, message});
+      return commits;
+    },
+    []
+  )).reverse();
+}
+
+/**
+ * Amend a commit (rewriting the sha) on the current git repository.
+ *
+ * @param {string} messages commit message.
+ *
+ * @returns {Array<Commit>} the created commits.
+ */
+export async function gitAmmendCommit(msg) {
+  const {stdout} = await execa('git', ['commit', '--amend', '-m', msg, '--allow-empty']);
+  const [, branch, hash, message] = /^\[(\w+)\(?.*?\)?(\w+)\] (.+)(.|\s)+$/.exec(stdout);
+  return {branch, hash, message};
+}
+
+/**
+ * Checkout a branch on the current git repository.
+ *
+ * @param {string} branch Branch name.
+ * @param {boolean} create `true` to create the branche ans switch, `false` to only switch.
+ */
+export async function gitCheckout(branch, create = true) {
+  await execa('git', create ? ['checkout', '-b', branch] : ['checkout', branch]);
+}
+
+/**
+ * @return {string} The sha of the head commit in the current git repository.
+ */
+export async function gitHead() {
+  return (await execa('git', ['rev-parse', 'HEAD'])).stdout;
+}
+
+/**
+ * Create a tag on the head commit in the current git repository.
+ *
+ * @param {string} tagName The tag name to create.
+ * @param {string} [sha] The commit on which to create the tag. If undefined the tag is created on the last commit.
+ *
+ * @return {string} The commit sha of the created tag.
+ */
+export async function gitTagVersion(tagName, sha) {
+  await execa('git', sha ? ['tag', '-f', tagName, sha] : ['tag', tagName]);
+  return (await execa('git', ['rev-list', '-1', '--tags', tagName])).stdout;
+}
+
+/**
+ * @return {Array<string>} The list of tags from the current git repository.
+ */
+export async function gitTags() {
+  return (await execa('git', ['tag'])).stdout.split('\n').filter(tag => Boolean(tag));
+}
+
+/**
+ * @return {Array<string>} The list of commit sha from the current git repository.
+ */
+export async function gitLog() {
+  return (await execa('git', ['log', '--format=format:%H'])).stdout.split('\n').filter(sha => Boolean(sha));
+}
+
+/**
+ * Create a shallow clone of a git repository and change the current working directory to the cloned repository root.
+ * The shallow will contain a limited number of commit and no tags.
+ *
+ * @param {string} origin The path of the repository to clone.
+ * @param {number} [depth=1] The number of commit to clone.
+ * @return {string} The path of the cloned repository.
+ */
+export async function gitShallowClone(origin, branch = 'master', depth = 1) {
+  const dir = tempy.directory();
+
+  process.chdir(dir);
+  await execa('git', ['clone', '--no-hardlinks', '--no-tags', '-b', branch, '--depth', depth, fileUrl(origin), dir]);
+  return dir;
+}
+
+/**
+ * Create a git repo with a detached head from another git repository and change the current working directory to the new repository root.
+ *
+ * @param {string} origin The path of the repository to clone.
+ * @param {number} head A commit sha of the origin repo that will become the detached head of the new one.
+ * @return {string} The path of the new repository.
+ */
+export async function gitDetachedHead(origin, head) {
+  const dir = tempy.directory();
+
+  process.chdir(dir);
+  await execa('git', ['init']);
+  await execa('git', ['remote', 'add', 'origin', origin]);
+  await execa('git', ['fetch']);
+  await execa('git', ['checkout', head]);
+  return dir;
+}
+
+/**
+ * Pack heads and tags of the current git repository.
+ */
+export async function gitPackRefs() {
+  await execa('git', ['pack-refs', '--all']);
+}
+
+/**
+ * Add a new Git configuration.
+ *
+ * @param {string} name Config name.
+ * @param {string} value Config value.
+ */
+export async function gitAddConfig(name, value) {
+  await execa('git', ['config', '--add', name, value]);
+}

test/helpers/mock-github.js

@@ -0,0 +1,16 @@
+import nock from 'nock';
+
+/**
+ * Retun a `nock` object setup to respond to a github authentication request. Other expectation and responses can be chained.
+ *
+ * @param {String} [githubToken='GH_TOKEN'] The github token to return in the authentication response.
+ * @param {String} [githubUrl='https://api.github.com'] The url on which to intercept http requests.
+ * @return {Object} A `nock` object ready to respond to a github authentication request.
+ */
+export default function authenticate({
+  githubToken = 'GH_TOKEN',
+  githubUrl = 'https://api.github.com',
+  githubApiPathPrefix = '',
+} = {}) {
+  return nock(`${githubUrl}/${githubApiPathPrefix}`, {reqheaders: {Authorization: `token ${githubToken}`}});
+}

test/helpers/mockserver.js

@@ -0,0 +1,107 @@
+import Docker from 'dockerode';
+import getStream from 'get-stream';
+import got from 'got';
+import pRetry from 'p-retry';
+import {mockServerClient} from 'mockserver-client';
+
+const IMAGE = 'jamesdbloom/mockserver:latest';
+const MOCK_SERVER_PORT = 1080;
+const MOCK_SERVER_HOST = 'localhost';
+const docker = new Docker();
+let container;
+
+/**
+ * Download the `mockserver` Docker image, create a new container and start it.
+ *
+ * @return {Promise} Promise that resolves when the container is started.
+ */
+async function start() {
+  await getStream(await docker.pull(IMAGE));
+
+  container = await docker.createContainer({
+    Tty: true,
+    Image: IMAGE,
+    PortBindings: {[`${MOCK_SERVER_PORT}/tcp`]: [{HostPort: `${MOCK_SERVER_PORT}`}]},
+  });
+  await container.start();
+
+  try {
+    // Wait for the mock server to be ready
+    await pRetry(() => got.put(`http://${MOCK_SERVER_HOST}:${MOCK_SERVER_PORT}/status`, {cache: false}), {
+      retries: 7,
+      minTimeout: 1000,
+      factor: 2,
+    });
+  } catch (err) {
+    throw new Error(`Couldn't start mock-server after 2 min`);
+  }
+}
+
+/**
+ * Stop and remote the `mockserver` Docker container.
+ *
+ * @return {Promise} Promise that resolves when the container is stopped.
+ */
+async function stop() {
+  await container.stop();
+  await container.remove();
+}
+
+/**
+ * @type {Object} A `mockserver` client configured to connect to the current instance.
+ */
+const client = mockServerClient(MOCK_SERVER_HOST, MOCK_SERVER_PORT);
+/**
+ * @type {string} the url of the `mockserver` instance
+ */
+const url = `http://${MOCK_SERVER_HOST}:${MOCK_SERVER_PORT}`;
+
+/**
+ * Set up the `mockserver` instance response for a specific request.
+ *
+ * @param {string} path URI for which to respond.
+ * @param {Object} request Request expectation. The http request made on `path` has to match those criteria in order to be valid.
+ * @param {Object} request.body The JSON body the expected request must match.
+ * @param {Object} request.headers The headers the expected request must match.
+ * @param {Object} response The http response to return when receiving a request on `path`.
+ * @param {String} [response.method='POST'] The http method for which to respond.
+ * @param {number} [response.statusCode=200] The status code to respond.
+ * @param {Object} response.body The JSON object to respond in the response body.
+ * @return {Object} An object representation the expectation. Pass to the `verify` function to validate the `mockserver` has been called with a `request` matching the expectations.
+ */
+async function mock(
+  path,
+  {body: requestBody, headers: requestHeaders},
+  {method = 'POST', statusCode = 200, body: responseBody}
+) {
+  await client.mockAnyResponse({
+    httpRequest: {path, method},
+    httpResponse: {
+      statusCode,
+      headers: [{name: 'Content-Type', values: ['application/json; charset=utf-8']}],
+      body: JSON.stringify(responseBody),
+    },
+    times: {remainingTimes: 1, unlimited: false},
+  });
+
+  return {
+    method,
+    path,
+    headers: requestHeaders,
+    body: requestBody
+      ? {type: 'JSON', json: JSON.stringify(requestBody), matchType: 'ONLY_MATCHING_FIELDS'}
+      : undefined,
+  };
+}
+
+/**
+ * Verify the `mockserver` has been called with a requestion matching expectations. The `expectation` is created with the `mock` function.
+ *
+ * @param {Object} expectation The expectation created with `mock` function.
+ * @return {Promise} A Promise that resolves if the expectation is met or reject otherwise.
+ */
+async function verify(expectation) {
+  return client.verify(expectation);
+}
+
+export default {start, stop, mock, verify, url};

test/helpers/npm-registry.js

@@ -0,0 +1,80 @@
+import Docker from 'dockerode';
+import getStream from 'get-stream';
+import got from 'got';
+import delay from 'delay';
+import pRetry from 'p-retry';
+
+const IMAGE = 'npmjs/npm-docker-couchdb:1.6.1';
+const SERVER_PORT = 15986;
+const COUCHDB_PORT = 5984;
+const SERVER_HOST = 'localhost';
+const NPM_USERNAME = 'integration';
+const NPM_PASSWORD = 'suchsecure';
+const NPM_EMAIL = 'integration@test.com';
+const docker = new Docker();
+let container;
+
+/**
+ * Download the `npm-docker-couchdb` Docker image, create a new container and start it.
+ *
+ * @return {Promise} Promise that resolves when the container is started.
+ */
+async function start() {
+  await getStream(await docker.pull(IMAGE));
+
+  container = await docker.createContainer({
+    Tty: true,
+    Image: IMAGE,
+    PortBindings: {[`${COUCHDB_PORT}/tcp`]: [{HostPort: `${SERVER_PORT}`}]},
+  });
+
+  await container.start();
+  await delay(3000);
+
+  try {
+    // Wait for the registry to be ready
+    await pRetry(() => got(`http://${SERVER_HOST}:${SERVER_PORT}/registry/_design/app`, {cache: false}), {
+      retries: 7,
+      minTimeout: 1000,
+      factor: 2,
+    });
+  } catch (err) {
+    throw new Error(`Couldn't start npm-docker-couchdb after 2 min`);
+  }
+
+  // Create user
+  await got(`http://${SERVER_HOST}:${SERVER_PORT}/_users/org.couchdb.user:${NPM_USERNAME}`, {
+    json: true,
+    auth: 'admin:admin',
+    method: 'PUT',
+    body: {
+      _id: `org.couchdb.user:${NPM_USERNAME}`,
+      name: NPM_USERNAME,
+      roles: [],
+      type: 'user',
+      password: NPM_PASSWORD,
+      email: NPM_EMAIL,
+    },
+  });
+}
+
+const url = `http://${SERVER_HOST}:${SERVER_PORT}/registry/_design/app/_rewrite/`;
+
+const authEnv = {
+  npm_config_registry: url, // eslint-disable-line camelcase
+  NPM_USERNAME,
+  NPM_PASSWORD,
+  NPM_EMAIL,
+};
+
+/**
+ * Stop and remote the `npm-docker-couchdb` Docker container.
+ *
+ * @return {Promise} Promise that resolves when the container is stopped.
+ */
+async function stop() {
+  await container.stop();
+  await container.remove();
+}
+
+export default {start, stop, authEnv, url};

test/index.test.js

@@ -0,0 +1,295 @@
+import test from 'ava';
+import proxyquire from 'proxyquire';
+import {stub} from 'sinon';
+import tempy from 'tempy';
+import DEFINITIONS from '../lib/plugins/definitions';
+import {gitHead as getGitHead} from '../lib/git';
+import {gitRepo, gitCommits, gitTagVersion} from './helpers/git-utils';
+
+// Save the current process.env
+const envBackup = Object.assign({}, process.env);
+// Save the current working diretory
+const cwd = process.cwd();
+
+stub(process.stdout, 'write');
+stub(process.stderr, 'write');
+
+test.beforeEach(t => {
+  // Stub the logger functions
+  t.context.log = stub();
+  t.context.error = stub();
+  t.context.logger = {log: t.context.log, error: t.context.error};
+  t.context.semanticRelease = proxyquire('../index', {'./lib/logger': t.context.logger});
+});
+
+test.afterEach.always(() => {
+  // Restore process.env
+  process.env = envBackup;
+  // Restore the current working directory
+  process.chdir(cwd);
+});
+
+test.serial('Plugins are called with expected values', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  let commits = await gitCommits(['First']);
+  // Create the tag corresponding to version 1.0.0
+  await gitTagVersion('v1.0.0');
+  // Add new commits to the master branch
+  commits = (await gitCommits(['Second'])).concat(commits);
+
+  const lastRelease = {version: '1.0.0', gitHead: commits[commits.length - 1].hash, gitTag: 'v1.0.0'};
+  const nextRelease = {type: 'major', version: '2.0.0', gitHead: await getGitHead(), gitTag: 'v2.0.0'};
+  const notes = 'Release notes';
+  const verifyConditions1 = stub().resolves();
+  const verifyConditions2 = stub().resolves();
+  const getLastRelease = stub().resolves(lastRelease);
+  const analyzeCommits = stub().resolves(nextRelease.type);
+  const verifyRelease = stub().resolves();
+  const generateNotes = stub().resolves(notes);
+  const publish = stub().resolves();
+
+  const config = {branch: 'master', repositoryUrl: 'git@hostname.com:owner/module.git', globalOpt: 'global'};
+  const options = {
+    ...config,
+    verifyConditions: [verifyConditions1, verifyConditions2],
+    getLastRelease,
+    analyzeCommits,
+    verifyRelease,
+    generateNotes,
+    publish,
+  };
+
+  await t.context.semanticRelease(options);
+
+  t.is(verifyConditions1.callCount, 1);
+  t.deepEqual(verifyConditions1.args[0][0], config);
+  t.deepEqual(verifyConditions1.args[0][1], {options, logger: t.context.logger});
+  t.is(verifyConditions2.callCount, 1);
+  t.deepEqual(verifyConditions2.args[0][1], {options, logger: t.context.logger});
+
+  t.is(getLastRelease.callCount, 1);
+  t.deepEqual(getLastRelease.args[0][0], config);
+  t.deepEqual(getLastRelease.args[0][1], {options, logger: t.context.logger});
+
+  t.is(analyzeCommits.callCount, 1);
+  t.deepEqual(analyzeCommits.args[0][0], config);
+  t.deepEqual(analyzeCommits.args[0][1].options, options);
+  t.deepEqual(analyzeCommits.args[0][1].logger, t.context.logger);
+  t.deepEqual(analyzeCommits.args[0][1].lastRelease, lastRelease);
+  t.deepEqual(analyzeCommits.args[0][1].commits[0].hash.substring(0, 7), commits[0].hash);
+  t.deepEqual(analyzeCommits.args[0][1].commits[0].message, commits[0].message);
+
+  t.is(verifyRelease.callCount, 1);
+  t.deepEqual(verifyRelease.args[0][0], config);
+  t.deepEqual(verifyRelease.args[0][1].options, options);
+  t.deepEqual(verifyRelease.args[0][1].logger, t.context.logger);
+  t.deepEqual(verifyRelease.args[0][1].lastRelease, lastRelease);
+  t.deepEqual(verifyRelease.args[0][1].commits[0].hash.substring(0, 7), commits[0].hash);
+  t.deepEqual(verifyRelease.args[0][1].commits[0].message, commits[0].message);
+  t.deepEqual(verifyRelease.args[0][1].nextRelease, nextRelease);
+
+  t.is(generateNotes.callCount, 1);
+  t.deepEqual(generateNotes.args[0][0], config);
+  t.deepEqual(generateNotes.args[0][1].options, options);
+  t.deepEqual(generateNotes.args[0][1].logger, t.context.logger);
+  t.deepEqual(generateNotes.args[0][1].lastRelease, lastRelease);
+  t.deepEqual(generateNotes.args[0][1].commits[0].hash.substring(0, 7), commits[0].hash);
+  t.deepEqual(generateNotes.args[0][1].commits[0].message, commits[0].message);
+  t.deepEqual(generateNotes.args[0][1].nextRelease, nextRelease);
+
+  t.is(publish.callCount, 1);
+  t.deepEqual(publish.args[0][0], config);
+  t.deepEqual(publish.args[0][1].options, options);
+  t.deepEqual(publish.args[0][1].logger, t.context.logger);
+  t.deepEqual(publish.args[0][1].lastRelease, lastRelease);
+  t.deepEqual(publish.args[0][1].commits[0].hash.substring(0, 7), commits[0].hash);
+  t.deepEqual(publish.args[0][1].commits[0].message, commits[0].message);
+  t.deepEqual(publish.args[0][1].nextRelease, Object.assign({}, nextRelease, {notes}));
+});
+
+test.serial('Use new gitHead, and recreate release notes if a publish plugin create a commit', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  let commits = await gitCommits(['First']);
+  // Create the tag corresponding to version 1.0.0
+  await gitTagVersion('v1.0.0');
+  // Add new commits to the master branch
+  commits = (await gitCommits(['Second'])).concat(commits);
+
+  const lastRelease = {version: '1.0.0', gitHead: commits[commits.length - 1].hash, gitTag: 'v1.0.0'};
+  const nextRelease = {type: 'major', version: '2.0.0', gitHead: await getGitHead(), gitTag: 'v2.0.0'};
+  const notes = 'Release notes';
+
+  const generateNotes = stub().resolves(notes);
+  const publish1 = stub().callsFake(async () => {
+    await gitCommits(['Third']);
+  });
+  const publish2 = stub().resolves();
+
+  const options = {
+    branch: 'master',
+    repositoryUrl: 'git@hostname.com:owner/module.git',
+    verifyConditions: stub().resolves(),
+    getLastRelease: stub().resolves(lastRelease),
+    analyzeCommits: stub().resolves(nextRelease.type),
+    verifyRelease: stub().resolves(),
+    generateNotes,
+    publish: [publish1, publish2],
+  };
+
+  await t.context.semanticRelease(options);
+
+  t.is(generateNotes.callCount, 2);
+  t.deepEqual(generateNotes.args[0][1].nextRelease, nextRelease);
+  t.is(publish1.callCount, 1);
+  t.deepEqual(publish1.args[0][1].nextRelease, Object.assign({}, nextRelease, {notes}));
+
+  nextRelease.gitHead = await getGitHead();
+
+  t.deepEqual(generateNotes.secondCall.args[1].nextRelease, Object.assign({}, nextRelease, {notes}));
+  t.is(publish2.callCount, 1);
+  t.deepEqual(publish2.args[0][1].nextRelease, Object.assign({}, nextRelease, {notes}));
+});
+
+test.serial('Dry-run skips verifyConditions and publish', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  let commits = await gitCommits(['First']);
+  // Create the tag corresponding to version 1.0.0
+  await gitTagVersion('v1.0.0');
+  // Add new commits to the master branch
+  commits = (await gitCommits(['Second'])).concat(commits);
+
+  const lastRelease = {version: '1.0.0', gitHead: commits[commits.length - 1].hash, gitTag: 'v1.0.0'};
+  const nextRelease = {type: 'major', version: '2.0.0', gitHead: await getGitHead(), gitTag: 'v2.0.0'};
+  const notes = 'Release notes';
+
+  const verifyConditions = stub().resolves();
+  const getLastRelease = stub().resolves(lastRelease);
+  const analyzeCommits = stub().resolves(nextRelease.type);
+  const verifyRelease = stub().resolves();
+  const generateNotes = stub().resolves(notes);
+  const publish = stub().resolves();
+
+  const options = {
+    dryRun: true,
+    branch: 'master',
+    repositoryUrl: 'git@hostname.com:owner/module.git',
+    verifyConditions,
+    getLastRelease,
+    analyzeCommits,
+    verifyRelease,
+    generateNotes,
+    publish,
+  };
+
+  await t.context.semanticRelease(options);
+
+  t.is(verifyConditions.callCount, 0);
+  t.is(getLastRelease.callCount, 1);
+  t.is(analyzeCommits.callCount, 1);
+  t.is(verifyRelease.callCount, 1);
+  t.is(generateNotes.callCount, 1);
+  t.is(publish.callCount, 0);
+});
+
+test.serial('Accept "undefined" values for the "getLastRelease" and "generateNotes" plugins', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  await gitCommits(['First']);
+  // Create the tag corresponding to version 1.0.0
+  await gitTagVersion('v1.0.0');
+  // Add new commits to the master branch
+  await gitCommits(['Second']);
+
+  const lastRelease = {gitHead: undefined, gitTag: undefined, version: undefined};
+  const nextRelease = {type: 'major', version: '2.0.0', gitHead: await getGitHead(), gitTag: 'v2.0.0'};
+  const verifyConditions = stub().resolves();
+  const getLastRelease = stub().resolves();
+  const analyzeCommits = stub().resolves(nextRelease.type);
+  const verifyRelease = stub().resolves();
+  const generateNotes = stub().resolves();
+  const publish = stub().resolves();
+
+  const options = {
+    branch: 'master',
+    repositoryUrl: 'git@hostname.com:owner/module.git',
+    verifyConditions: [verifyConditions],
+    getLastRelease,
+    analyzeCommits,
+    verifyRelease,
+    generateNotes,
+    publish,
+  };
+
+  await t.context.semanticRelease(options);
+
+  t.is(getLastRelease.callCount, 1);
+
+  t.is(analyzeCommits.callCount, 1);
+  t.deepEqual(analyzeCommits.args[0][1].lastRelease, lastRelease);
+
+  t.is(verifyRelease.callCount, 1);
+  t.deepEqual(verifyRelease.args[0][1].lastRelease, lastRelease);
+
+  t.is(generateNotes.callCount, 1);
+  t.deepEqual(generateNotes.args[0][1].lastRelease, lastRelease);
+
+  t.is(publish.callCount, 1);
+  t.deepEqual(publish.args[0][1].lastRelease, lastRelease);
+  t.falsy(publish.args[0][1].nextRelease.notes);
+});
+
+test.serial('Throw SemanticReleaseError if not running from a git repository', async t => {
+  // Set the current working directory to a temp directory
+  process.chdir(tempy.directory());
+
+  const error = await t.throws(t.context.semanticRelease());
+
+  // Verify error code and type
+  t.is(error.code, 'ENOGITREPO');
+  t.is(error.name, 'SemanticReleaseError');
+});
+
+test.serial('Throw SemanticReleaseError if repositoryUrl is not set and cannot be found', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+
+  const error = await t.throws(t.context.semanticRelease());
+
+  // Verify error code and type
+  t.is(error.code, 'ENOREPOURL');
+  t.is(error.name, 'SemanticReleaseError');
+});
+
+test.serial('Throw an Error if returns an unexpected value', async t => {
+  // Create a git repository, set the current working directory at the root of the repo
+  await gitRepo();
+  // Add commits to the master branch
+  await gitCommits(['First']);
+  // Create the tag corresponding to version 1.0.0
+  await gitTagVersion('v1.0.0');
+  // Add new commits to the master branch
+  await gitCommits(['Second']);
+
+  const verifyConditions = stub().resolves();
+  const getLastRelease = stub().resolves('string');
+
+  const options = {
+    branch: 'master',
+    repositoryUrl: 'git@hostname.com:owner/module.git',
+    verifyConditions: [verifyConditions],
+    getLastRelease,
+  };
+
+  const error = await t.throws(t.context.semanticRelease(options), Error);
+
+  // Verify error message
+  t.regex(error.message, new RegExp(DEFINITIONS.getLastRelease.output.message));
+  t.regex(error.message, /Received: 'string'/);
+});

test/integration.test.js

@@ -0,0 +1,777 @@
+import test from 'ava';
+import {writeJson, readJson} from 'fs-extra';
+import {stub} from 'sinon';
+import execa from 'execa';
+import {gitRepo, gitCommits, gitHead, gitTagVersion, gitPackRefs, gitAmmendCommit} from './helpers/git-utils';
+import mockServer from './helpers/mockserver';
+import npmRegistry from './helpers/npm-registry';
+import semanticRelease from '..';
+
+/* eslint camelcase: ["error", {properties: "never"}] */
+
+// Environment variables used with semantic-release cli (similar to what a user would setup)
+const env = {
+  GH_TOKEN: 'github_token',
+  GITHUB_URL: mockServer.url,
+  NPM_EMAIL: 'integration@test.com',
+  NPM_USERNAME: 'integration',
+  NPM_PASSWORD: 'suchsecure',
+};
+// Environment variables used only for the local npm command used to do verification
+const testEnv = Object.assign({}, process.env, {
+  npm_config_registry: npmRegistry.url,
+  NPM_EMAIL: 'integration@test.com',
+  LEGACY_TOKEN: Buffer.from(`${process.env.NPM_USERNAME}:${process.env.NPM_PASSWORD}`, 'utf8').toString('base64'),
+});
+// Save the current process.env
+const envBackup = Object.assign({}, process.env);
+const cli = require.resolve('../bin/semantic-release');
+const pluginError = require.resolve('./fixtures/plugin-error');
+const pluginInheritedError = require.resolve('./fixtures/plugin-error-inherited');
+// Save the current working diretory
+const cwd = process.cwd();
+// Disable logs during tests
+stub(process.stdout, 'write');
+stub(process.stderr, 'write');
+
+test.before(async () => {
+  // Start the local NPM registry
+  await npmRegistry.start();
+  // Start Mock Server
+  await mockServer.start();
+});
+
+test.beforeEach(() => {
+  // Delete env paramaters that could have been set on the machine running the tests
+  delete process.env.NPM_TOKEN;
+  delete process.env.NPM_USERNAME;
+  delete process.env.NPM_PASSWORD;
+  delete process.env.NPM_EMAIL;
+  delete process.env.GH_TOKEN;
+  delete process.env.GITHUB_TOKEN;
+  delete process.env.GH_URL;
+  delete process.env.GITHUB_URL;
+  delete process.env.GH_PREFIX;
+  delete process.env.GITHUB_PREFIX;
+  // Delete all `npm_config` environment variable set by CI as they take precedence over the `.npmrc` because the process that runs the tests is started before the `.npmrc` is created
+  for (let i = 0, keys = Object.keys(process.env); i < keys.length; i++) {
+    if (keys[i].startsWith('npm_config')) {
+      delete process.env[keys[i]];
+    }
+  }
+});
+
+test.afterEach.always(() => {
+  // Restore process.env
+  process.env = envBackup;
+  // Restore the current working directory
+  process.chdir(cwd);
+});
+
+test.after.always(async () => {
+  // Stop the local NPM registry
+  await npmRegistry.stop();
+  // Stop Mock Server
+  await mockServer.stop();
+});
+
+test.serial('Release patch, minor and major versions', async t => {
+  const packageName = 'test-release';
+  const owner = 'test-owner';
+  // Create a git repository, set the current working directory at the root of the repo
+  t.log('Create git repository and package.json');
+  await gitRepo();
+  // Create package.json in repository root
+  await writeJson('./package.json', {
+    name: packageName,
+    version: '0.0.0-dev',
+    repository: {url: `git+https://github.com/${owner}/${packageName}`},
+    release: {verifyConditions: ['@semantic-release/github', '@semantic-release/npm']},
+    publishConfig: {registry: npmRegistry.url},
+  });
+  // Create a npm-shrinkwrap.json file
+  await execa('npm', ['shrinkwrap'], {env: testEnv});
+
+  /* No release */
+
+  let verifyMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}`,
+    {headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {permissions: {push: true}}, method: 'GET'}
+  );
+  t.log('Commit a chore');
+  await gitCommits(['chore: Init repository']);
+  t.log('$ semantic-release');
+  let {stdout, code} = await execa(cli, [], {env});
+  t.regex(stdout, /There are no relevant changes, so no new version is released/);
+  t.is(code, 0);
+
+  /* Initial release */
+  let version = '1.0.0';
+  verifyMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}`,
+    {headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {permissions: {push: true}}, method: 'GET'}
+  );
+  let createRefMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/git/refs`,
+    {body: {ref: `refs/tags/v${version}`}, headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {ref: `refs/tags/${version}`}}
+  );
+  let createReleaseMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/releases`,
+    {
+      body: {tag_name: `v${version}`, target_commitish: 'master', name: `v${version}`},
+      headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}],
+    },
+    {body: {html_url: `release-url/${version}`}}
+  );
+
+  t.log('Commit a feature');
+  await gitCommits(['feat: Initial commit']);
+  t.log('$ semantic-release');
+  ({stdout, code} = await execa(cli, [], {env}));
+  t.regex(stdout, new RegExp(`Published Github release: release-url/${version}`));
+  t.regex(stdout, new RegExp(`Publishing version ${version} to npm registry`));
+  t.is(code, 0);
+
+  // Verify package.json and npm-shrinkwrap.json have been updated
+  t.is((await readJson('./package.json')).version, version);
+  t.is((await readJson('./npm-shrinkwrap.json')).version, version);
+
+  // Retrieve the published package from the registry and check version and gitHead
+  let [, releasedVersion, releasedGitHead] = /^version = '(.+)'\s+gitHead = '(.+)'$/.exec(
+    (await execa('npm', ['show', packageName, 'version', 'gitHead'], {env: testEnv})).stdout
+  );
+  t.is(releasedVersion, version);
+  t.is(releasedGitHead, await gitHead());
+  t.log(`+ released ${releasedVersion} with gitHead ${releasedGitHead}`);
+
+  await mockServer.verify(verifyMock);
+  await mockServer.verify(createRefMock);
+  await mockServer.verify(createReleaseMock);
+
+  /* Patch release */
+  version = '1.0.1';
+  verifyMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}`,
+    {headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {permissions: {push: true}}, method: 'GET'}
+  );
+  createRefMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/git/refs`,
+    {body: {ref: `refs/tags/v${version}`}, headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {ref: `refs/tags/${version}`}}
+  );
+  createReleaseMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/releases`,
+    {
+      body: {tag_name: `v${version}`, target_commitish: 'master', name: `v${version}`},
+      headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}],
+    },
+    {body: {html_url: `release-url/${version}`}}
+  );
+
+  t.log('Commit a fix');
+  await gitCommits(['fix: bar']);
+  t.log('$ semantic-release');
+  ({stdout, code} = await execa(cli, [], {env}));
+  t.regex(stdout, new RegExp(`Published Github release: release-url/${version}`));
+  t.regex(stdout, new RegExp(`Publishing version ${version} to npm registry`));
+  t.is(code, 0);
+
+  // Verify package.json and npm-shrinkwrap.json have been updated
+  t.is((await readJson('./package.json')).version, version);
+  t.is((await readJson('./npm-shrinkwrap.json')).version, version);
+
+  // Retrieve the published package from the registry and check version and gitHead
+  [, releasedVersion, releasedGitHead] = /^version = '(.+)'\s+gitHead = '(.+)'$/.exec(
+    (await execa('npm', ['show', packageName, 'version', 'gitHead'], {env: testEnv})).stdout
+  );
+  t.is(releasedVersion, version);
+  t.is(releasedGitHead, await gitHead());
+  t.log(`+ released ${releasedVersion} with gitHead ${releasedGitHead}`);
+
+  await mockServer.verify(verifyMock);
+  await mockServer.verify(createRefMock);
+  await mockServer.verify(createReleaseMock);
+
+  /* Minor release */
+  version = '1.1.0';
+  verifyMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}`,
+    {headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {permissions: {push: true}}, method: 'GET'}
+  );
+  createRefMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/git/refs`,
+    {body: {ref: `refs/tags/v${version}`}, headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {ref: `refs/tags/${version}`}}
+  );
+  createReleaseMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/releases`,
+    {
+      body: {tag_name: `v${version}`, target_commitish: 'master', name: `v${version}`},
+      headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}],
+    },
+    {body: {html_url: `release-url/${version}`}}
+  );
+
+  t.log('Commit a feature');
+  await gitCommits(['feat: baz']);
+  t.log('$ semantic-release');
+  ({stdout, code} = await execa(cli, [], {env}));
+  t.regex(stdout, new RegExp(`Published Github release: release-url/${version}`));
+  t.regex(stdout, new RegExp(`Publishing version ${version} to npm registry`));
+  t.is(code, 0);
+
+  // Verify package.json and npm-shrinkwrap.json have been updated
+  t.is((await readJson('./package.json')).version, version);
+  t.is((await readJson('./npm-shrinkwrap.json')).version, version);
+
+  // Retrieve the published package from the registry and check version and gitHead
+  [, releasedVersion, releasedGitHead] = /^version = '(.+)'\s+gitHead = '(.+)'$/.exec(
+    (await execa('npm', ['show', packageName, 'version', 'gitHead'], {env: testEnv})).stdout
+  );
+  t.is(releasedVersion, version);
+  t.is(releasedGitHead, await gitHead());
+  t.log(`+ released ${releasedVersion} with gitHead ${releasedGitHead}`);
+
+  await mockServer.verify(verifyMock);
+  await mockServer.verify(createRefMock);
+  await mockServer.verify(createReleaseMock);
+
+  /* Major release */
+  version = '2.0.0';
+  verifyMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}`,
+    {headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {permissions: {push: true}}, method: 'GET'}
+  );
+  createRefMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/git/refs`,
+    {body: {ref: `refs/tags/v${version}`}, headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {ref: `refs/tags/${version}`}}
+  );
+  createReleaseMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/releases`,
+    {
+      body: {tag_name: `v${version}`, target_commitish: 'master', name: `v${version}`},
+      headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}],
+    },
+    {body: {html_url: `release-url/${version}`}}
+  );
+
+  t.log('Commit a breaking change');
+  await gitCommits(['feat: foo\n\n BREAKING CHANGE: bar']);
+  t.log('$ semantic-release');
+  ({stdout, code} = await execa(cli, [], {env}));
+  t.regex(stdout, new RegExp(`Published Github release: release-url/${version}`));
+  t.regex(stdout, new RegExp(`Publishing version ${version} to npm registry`));
+  t.is(code, 0);
+
+  // Verify package.json and npm-shrinkwrap.json have been updated
+  t.is((await readJson('./package.json')).version, version);
+  t.is((await readJson('./npm-shrinkwrap.json')).version, version);
+
+  // Retrieve the published package from the registry and check version and gitHead
+  [, releasedVersion, releasedGitHead] = /^version = '(.+)'\s+gitHead = '(.+)'$/.exec(
+    (await execa('npm', ['show', packageName, 'version', 'gitHead'], {env: testEnv})).stdout
+  );
+  t.is(releasedVersion, version);
+  t.is(releasedGitHead, await gitHead());
+  t.log(`+ released ${releasedVersion} with gitHead ${releasedGitHead}`);
+
+  await mockServer.verify(verifyMock);
+  await mockServer.verify(createRefMock);
+  await mockServer.verify(createReleaseMock);
+});
+
+test.serial('Release versions from a packed git repository, using tags to determine last release gitHead', async t => {
+  const packageName = 'test-git-packed';
+  const owner = 'test-repo';
+  // Create a git repository, set the current working directory at the root of the repo
+  t.log('Create git repository');
+  await gitRepo();
+
+  // Create package.json in repository root
+  await writeJson('./package.json', {
+    name: packageName,
+    version: '0.0.0-dev',
+    repository: {url: `git@github.com:${owner}/${packageName}.git`},
+    release: {verifyConditions: ['@semantic-release/github', '@semantic-release/npm']},
+    publishConfig: {registry: npmRegistry.url},
+  });
+
+  /* Initial release */
+  let version = '1.0.0';
+  let verifyMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}`,
+    {headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {permissions: {push: true}}, method: 'GET'}
+  );
+  let createRefMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/git/refs`,
+    {body: {ref: `refs/tags/v${version}`}, headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {ref: `refs/tags/${version}`}}
+  );
+  let createReleaseMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/releases`,
+    {
+      body: {tag_name: `v${version}`, target_commitish: 'master', name: `v${version}`},
+      headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}],
+    },
+    {body: {html_url: `release-url/${version}`}}
+  );
+  t.log('Commit a feature');
+  await gitCommits(['feat: Initial commit']);
+  t.log('$ git pack-refs --all');
+  await gitPackRefs();
+  t.log('$ semantic-release');
+  let {stdout, code} = await execa(cli, [], {env});
+  t.regex(stdout, new RegExp(`Published Github release: release-url/${version}`));
+  t.regex(stdout, new RegExp(`Publishing version ${version} to npm registry`));
+  t.is(code, 0);
+  // Verify package.json has been updated
+  t.is((await readJson('./package.json')).version, version);
+  // Retrieve the published package from the registry and check version
+  let releasedVersion = (await execa('npm', ['show', packageName, 'version'], {env: testEnv})).stdout;
+  t.is(releasedVersion, version);
+  t.log(`+ released ${releasedVersion}`);
+  await mockServer.verify(verifyMock);
+  await mockServer.verify(createRefMock);
+  await mockServer.verify(createReleaseMock);
+  // Create a tag version so the tag can be used later to determine the commit associated with the version
+  await gitTagVersion(`v${version}`);
+  t.log(`Create git tag v${version}`);
+
+  /* Patch release */
+  version = '1.0.1';
+  verifyMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}`,
+    {headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {permissions: {push: true}}, method: 'GET'}
+  );
+  createRefMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/git/refs`,
+    {body: {ref: `refs/tags/v${version}`}, headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {ref: `refs/tags/${version}`}}
+  );
+  createReleaseMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/releases`,
+    {
+      body: {tag_name: `v${version}`, target_commitish: 'master', name: `v${version}`},
+      headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}],
+    },
+    {body: {html_url: `release-url/${version}`}}
+  );
+  t.log('Commit a fix');
+  await gitCommits(['fix: bar']);
+  t.log('$ semantic-release');
+  ({stdout, code} = await execa(cli, [], {env}));
+  t.regex(stdout, new RegExp(`Published Github release: release-url/${version}`));
+  t.regex(stdout, new RegExp(`Publishing version ${version} to npm registry`));
+  t.is(code, 0);
+  // Verify package.json has been updated
+  t.is((await readJson('./package.json')).version, version);
+
+  // Retrieve the published package from the registry and check version
+  releasedVersion = (await execa('npm', ['show', packageName, 'version'], {env: testEnv})).stdout;
+  t.is(releasedVersion, version);
+  t.log(`+ released ${releasedVersion}`);
+  await mockServer.verify(verifyMock);
+  await mockServer.verify(createRefMock);
+  await mockServer.verify(createReleaseMock);
+});
+
+test.serial('Exit with 1 if a plugin is not found', async t => {
+  const packageName = 'test-plugin-not-found';
+  const owner = 'test-repo';
+  // Create a git repository, set the current working directory at the root of the repo
+  t.log('Create git repository');
+  await gitRepo();
+  await writeJson('./package.json', {
+    name: packageName,
+    version: '0.0.0-dev',
+    repository: {url: `git+https://github.com/${owner}/${packageName}`},
+    release: {analyzeCommits: 'non-existing-path'},
+  });
+
+  const {code, stderr} = await t.throws(execa(cli, [], {env}));
+  t.is(code, 1);
+  t.regex(stderr, /Cannot find module/);
+});
+
+test.serial('Exit with 1 if a shareable config is not found', async t => {
+  const packageName = 'test-config-not-found';
+  const owner = 'test-repo';
+  // Create a git repository, set the current working directory at the root of the repo
+  t.log('Create git repository');
+  await gitRepo();
+  await writeJson('./package.json', {
+    name: packageName,
+    version: '0.0.0-dev',
+    repository: {url: `git+https://github.com/${owner}/${packageName}`},
+    release: {extends: 'non-existing-path'},
+  });
+
+  const {code, stderr} = await t.throws(execa(cli, [], {env}));
+  t.is(code, 1);
+  t.regex(stderr, /Cannot find module/);
+});
+
+test.serial('Exit with 1 if a shareable config reference a not found plugin', async t => {
+  const packageName = 'test-config-ref-not-found';
+  const owner = 'test-repo';
+  const shareable = {getLastRelease: 'non-existing-path'};
+
+  // Create a git repository, set the current working directory at the root of the repo
+  t.log('Create git repository');
+  await gitRepo();
+  await writeJson('./package.json', {
+    name: packageName,
+    version: '0.0.0-dev',
+    repository: {url: `git+https://github.com/${owner}/${packageName}`},
+    release: {extends: './shareable.json'},
+  });
+  await writeJson('./shareable.json', shareable);
+
+  const {code, stderr} = await t.throws(execa(cli, [], {env}));
+  t.is(code, 1);
+  t.regex(stderr, /Cannot find module/);
+});
+
+test.serial('Create a tag as a recovery solution for "ENOTINHISTORY" error', async t => {
+  const packageName = 'test-recovery';
+  const owner = 'test-repo';
+  // Create a git repository, set the current working directory at the root of the repo
+  t.log('Create git repository');
+  await gitRepo();
+
+  // Create package.json in repository root
+  await writeJson('./package.json', {
+    name: packageName,
+    version: '0.0.0-dev',
+    repository: {url: `git+https://github.com/${owner}/${packageName}`},
+    release: {verifyConditions: ['@semantic-release/github', '@semantic-release/npm']},
+    publishConfig: {registry: npmRegistry.url},
+  });
+
+  /* Initial release */
+  let version = '1.0.0';
+  let verifyMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}`,
+    {headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {permissions: {push: true}}, method: 'GET'}
+  );
+  let createRefMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/git/refs`,
+    {body: {ref: `refs/tags/v${version}`}, headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {ref: `refs/tags/${version}`}}
+  );
+  let createReleaseMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/releases`,
+    {
+      body: {tag_name: `v${version}`, target_commitish: 'master', name: `v${version}`},
+      headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}],
+    },
+    {body: {html_url: `release-url/${version}`}}
+  );
+  t.log('Commit a feature');
+  await gitCommits(['feat: Initial commit']);
+  t.log('$ semantic-release');
+  let {stderr, stdout, code} = await execa(cli, [], {env});
+  t.regex(stdout, new RegExp(`Published Github release: release-url/${version}`));
+  t.regex(stdout, new RegExp(`Publishing version ${version} to npm registry`));
+  t.is(code, 0);
+  // Verify package.json has been updated
+  t.is((await readJson('./package.json')).version, version);
+
+  // Retrieve the published package from the registry and check version and gitHead
+  let [, releasedVersion, releasedGitHead] = /^version = '(.+)'\s+gitHead = '(.+)'$/.exec(
+    (await execa('npm', ['show', packageName, 'version', 'gitHead'], {env: testEnv})).stdout
+  );
+  const head = await gitHead();
+  t.is(releasedGitHead, head);
+  t.is(releasedVersion, version);
+  t.log(`+ released ${releasedVersion}`);
+  await mockServer.verify(verifyMock);
+  await mockServer.verify(createRefMock);
+  await mockServer.verify(createReleaseMock);
+
+  // Create a tag version so the tag can be used later to determine the commit associated with the version
+  await gitTagVersion(`v${version}`);
+  t.log(`Create git tag v${version}`);
+
+  /* Rewrite sha of commit used for release */
+
+  t.log('Amend release commit');
+  const {hash} = await gitAmmendCommit('feat: Initial commit');
+
+  /* Patch release */
+  verifyMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}`,
+    {headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {permissions: {push: true}}, method: 'GET'}
+  );
+  t.log('Commit a fix');
+  await gitCommits(['fix: bar']);
+  t.log('$ semantic-release');
+  ({stderr, stdout, code} = await execa(cli, [], {env, reject: false}));
+
+  t.log('Log "ENOTINHISTORY" message');
+  t.is(code, 0);
+  t.regex(
+    stderr,
+    new RegExp(
+      `You can recover from this error by restoring the commit "${head}" or by creating a tag for the version "${version}" on the commit corresponding to this release`
+    )
+  );
+
+  /* Create a tag to recover and redo release */
+
+  t.log(`Create git tag v${version} to recover`);
+  await gitTagVersion(`v${version}`, hash);
+
+  version = '1.0.1';
+  verifyMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}`,
+    {headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {permissions: {push: true}}, method: 'GET'}
+  );
+  createRefMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/git/refs`,
+    {body: {ref: `refs/tags/v${version}`}, headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {ref: `refs/tags/${version}`}}
+  );
+  createReleaseMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/releases`,
+    {
+      body: {tag_name: `v${version}`, target_commitish: 'master', name: `v${version}`},
+      headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}],
+    },
+    {body: {html_url: `release-url/${version}`}}
+  );
+
+  t.log('$ semantic-release');
+  ({stderr, stdout, code} = await execa(cli, [], {env}));
+  t.regex(stdout, new RegExp(`Published Github release: release-url/${version}`));
+  t.regex(stdout, new RegExp(`Publishing version ${version} to npm registry`));
+  t.is(code, 0);
+  // Verify package.json has been updated
+  t.is((await readJson('./package.json')).version, version);
+
+  // Retrieve the published package from the registry and check version and gitHead
+  releasedVersion = (await execa('npm', ['show', packageName, 'version'], {env: testEnv})).stdout;
+  t.is(releasedVersion, version);
+  t.log(`+ released ${releasedVersion}`);
+  await mockServer.verify(verifyMock);
+  await mockServer.verify(createRefMock);
+  await mockServer.verify(createReleaseMock);
+});
+
+test.serial('Dry-run', async t => {
+  const packageName = 'test-dry-run';
+  const owner = 'test-repo';
+  // Create a git repository, set the current working directory at the root of the repo
+  t.log('Create git repository and package.json');
+  await gitRepo();
+  // Create package.json in repository root
+  await writeJson('./package.json', {
+    name: packageName,
+    version: '0.0.0-dev',
+    repository: {url: `git+https://github.com/${owner}/${packageName}`},
+    publishConfig: {registry: npmRegistry.url},
+  });
+
+  /* Initial release */
+  const version = '1.0.0';
+  t.log('Commit a feature');
+  await gitCommits(['feat: Initial commit']);
+  t.log('$ semantic-release -d');
+  const {stdout, code} = await execa(cli, ['-d'], {env});
+  t.regex(stdout, new RegExp(`There is no previous release, the next release version is ${version}`));
+  t.regex(stdout, new RegExp(`Release note for version ${version}`));
+  t.regex(stdout, /Initial commit/);
+  t.is(code, 0);
+
+  // Verify package.json and has not been modified
+  t.is((await readJson('./package.json')).version, '0.0.0-dev');
+});
+
+test.serial('Pass options via CLI arguments', async t => {
+  const packageName = 'test-cli';
+  const owner = 'test-repo';
+  // Create a git repository, set the current working directory at the root of the repo
+  t.log('Create git repository and package.json');
+  await gitRepo();
+  // Create package.json in repository root
+  await writeJson('./package.json', {
+    name: packageName,
+    version: '0.0.0-dev',
+    repository: {url: `git+https://github.com/${owner}/${packageName}`},
+    publishConfig: {registry: npmRegistry.url},
+  });
+
+  /* Initial release */
+  const version = '1.0.0';
+  t.log('Commit a feature');
+  await gitCommits(['feat: Initial commit']);
+  t.log('$ semantic-release');
+  const {stdout, code} = await execa(
+    cli,
+    ['--verify-conditions', '@semantic-release/npm', '--publish', '@semantic-release/npm', '--debug'],
+    {env}
+  );
+  t.regex(stdout, new RegExp(`Publishing version ${version} to npm registry`));
+  t.is(code, 0);
+
+  // Verify package.json and has been updated
+  t.is((await readJson('./package.json')).version, version);
+
+  // Retrieve the published package from the registry and check version and gitHead
+  const [, releasedVersion, releasedGitHead] = /^version = '(.+)'\s+gitHead = '(.+)'$/.exec(
+    (await execa('npm', ['show', packageName, 'version', 'gitHead'], {env: testEnv})).stdout
+  );
+  t.is(releasedVersion, version);
+  t.is(releasedGitHead, await gitHead());
+  t.log(`+ released ${releasedVersion} with gitHead ${releasedGitHead}`);
+});
+
+test.serial('Run via JS API', async t => {
+  const packageName = 'test-js-api';
+  const owner = 'test-repo';
+  // Create a git repository, set the current working directory at the root of the repo
+  t.log('Create git repository and package.json');
+  await gitRepo();
+  // Create package.json in repository root
+  await writeJson('./package.json', {
+    name: packageName,
+    version: '0.0.0-dev',
+    repository: {url: `git+https://github.com/${owner}/${packageName}`},
+    publishConfig: {registry: npmRegistry.url},
+  });
+
+  /* Initial release */
+  const version = '1.0.0';
+  const verifyMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}`,
+    {headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}]},
+    {body: {permissions: {push: true}}, method: 'GET'}
+  );
+  const createRefMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/git/refs`,
+    {
+      body: {ref: `refs/tags/v${version}`},
+      headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}],
+    },
+    {body: {ref: `refs/tags/${version}`}}
+  );
+  const createReleaseMock = await mockServer.mock(
+    `/repos/${owner}/${packageName}/releases`,
+    {
+      body: {tag_name: `v${version}`, target_commitish: 'master', name: `v${version}`},
+      headers: [{name: 'Authorization', values: [`token ${env.GH_TOKEN}`]}],
+    },
+    {body: {html_url: `release-url/${version}`}}
+  );
+
+  process.env = Object.assign(process.env, env);
+
+  t.log('Commit a feature');
+  await gitCommits(['feat: Initial commit']);
+  t.log('$ Call semantic-release via API');
+  await semanticRelease({
+    verifyConditions: [{path: '@semantic-release/github'}, '@semantic-release/npm'],
+    publish: [{path: '@semantic-release/github'}, '@semantic-release/npm'],
+    debug: true,
+  });
+
+  // Verify package.json and has been updated
+  t.is((await readJson('./package.json')).version, version);
+
+  // Retrieve the published package from the registry and check version and gitHead
+  const [, releasedVersion, releasedGitHead] = /^version = '(.+)'\s+gitHead = '(.+)'$/.exec(
+    (await execa('npm', ['show', packageName, 'version', 'gitHead'], {env: testEnv})).stdout
+  );
+  t.is(releasedVersion, version);
+  t.is(releasedGitHead, await gitHead());
+  t.log(`+ released ${releasedVersion} with gitHead ${releasedGitHead}`);
+
+  await mockServer.verify(verifyMock);
+  await mockServer.verify(createRefMock);
+  await mockServer.verify(createReleaseMock);
+});
+
+test.serial('Log unexpected errors from plugins and exit with 1', async t => {
+  const packageName = 'test-unexpected-error';
+  const owner = 'test-repo';
+  // Create a git repository, set the current working directory at the root of the repo
+  t.log('Create git repository and package.json');
+  await gitRepo();
+  // Create package.json in repository root
+  await writeJson('./package.json', {
+    name: packageName,
+    version: '0.0.0-dev',
+    repository: {url: `git+https://github.com/${owner}/${packageName}`},
+    release: {verifyConditions: pluginError},
+  });
+
+  /* Initial release */
+  t.log('Commit a feature');
+  await gitCommits(['feat: Initial commit']);
+  t.log('$ semantic-release');
+  const {stderr, code} = await execa(cli, [], {env, reject: false});
+  // Verify the type and message are logged
+  t.regex(stderr, /Error: a/);
+  // Verify the the stacktrace is logged
+  t.regex(stderr, new RegExp(pluginError));
+  // Verify the Error properties are logged
+  t.regex(stderr, /errorProperty: 'errorProperty'/);
+  t.is(code, 1);
+});
+
+test.serial('Log errors inheriting SemanticReleaseError and exit with 0', async t => {
+  const packageName = 'test-inherited-error';
+  const owner = 'test-repo';
+  // Create a git repository, set the current working directory at the root of the repo
+  t.log('Create git repository and package.json');
+  await gitRepo();
+  // Create package.json in repository root
+  await writeJson('./package.json', {
+    name: packageName,
+    version: '0.0.0-dev',
+    repository: {url: `git+https://github.com/${owner}/${packageName}`},
+    release: {verifyConditions: pluginInheritedError},
+  });
+
+  /* Initial release */
+  t.log('Commit a feature');
+  await gitCommits(['feat: Initial commit']);
+  t.log('$ semantic-release');
+  const {stdout, code} = await execa(cli, [], {env, reject: false});
+  // Verify the type and message are logged
+  t.regex(stdout, /EINHERITED Inherited error/);
+  t.is(code, 0);
+});
+
+test.serial('CLI returns error code and prints help if called with a command', async t => {
+  t.log('$ semantic-release pre');
+  const {stdout, code} = await execa(cli, ['pre'], {env, reject: false});
+  t.regex(stdout, /Usage: semantic-release/);
+  t.is(code, 1);
+});
+
+test.serial('CLI prints help if called with --help', async t => {
+  t.log('$ semantic-release --help');
+  const {stdout, code} = await execa(cli, ['--help'], {env});
+  t.regex(stdout, /Usage: semantic-release/);
+  t.is(code, 0);
+});
+
+test.serial('CLI returns error code with invalid option', async t => {
+  t.log('$ semantic-release --unknown-option');
+  const {stderr, code} = await execa(cli, ['--unknown-option'], {env, reject: false});
+  t.regex(stderr, /unknown option/);
+  t.is(code, 1);
+});

test/lib/base-scenario.js

@@ -1,12 +0,0 @@
-var nixt = require('nixt')
-
-module.exports = function (cwd, uri) {
-  return nixt()
-    .cwd(cwd)
-    .env('NPM_OLD_TOKEN', 'aW50ZWdyYXRpb246c3VjaHNlY3VyZQ==')
-    .env('NPM_EMAIL', 'integration@test.com')
-    .env('GH_TOKEN', 'ghtoken')
-    .env('CI', 'true')
-    .env('npm_config_registry', uri)
-    .clone()
-}

test/lib/test-module.js

@@ -1,36 +0,0 @@
-var exec = require('child_process').exec
-var join = require('path').join
-var writeFileSync = require('fs').writeFileSync
-
-var mkdirp = require('mkdirp')
-
-module.exports = function (name, registry, cb) {
-  var cwd = join(__dirname, '../tmp', name)
-
-  mkdirp.sync(cwd)
-
-  writeFileSync(join(cwd, 'package.json'), JSON.stringify({
-    name: name,
-    repository: {
-      url: 'git+https://github.com/semantic-release/test'
-    },
-    release: {
-      verifyConditions: '../../../src/lib/plugin-noop'
-    }
-  }, null, 2))
-
-  exec(
-  'git init && ' +
-  'git config user.email "integration@test" && ' +
-  'git config user.name "Integration Test" && ' +
-  'git add . && ' +
-  'git commit -m "chore: root"'
-  , {cwd: cwd}, function (err, stdout, stderr) {
-    if (err) {
-      console.log(stdout, stderr)
-      return cb(err)
-    }
-
-    cb(null, cwd)
-  })
-}

test/logger.test.js

@@ -0,0 +1,51 @@
+import test from 'ava';
+import {stub} from 'sinon';
+import logger from '../lib/logger';
+
+test.beforeEach(t => {
+  t.context.log = stub(console, 'log');
+  t.context.error = stub(console, 'error');
+});
+
+test.afterEach.always(t => {
+  t.context.log.restore();
+  t.context.error.restore();
+});
+
+test.serial('Basic log', t => {
+  logger.log('test log');
+  logger.error('test error');
+
+  t.regex(t.context.log.args[0][0], /.*test log/);
+  t.regex(t.context.error.args[0][0], /.*test error/);
+});
+
+test.serial('Log object', t => {
+  const obj = {a: 1, b: '2'};
+  logger.log(obj);
+  logger.error(obj);
+
+  t.is(t.context.log.args[0][1], obj);
+  t.is(t.context.error.args[0][1], obj);
+});
+
+test.serial('Log with string formatting', t => {
+  logger.log('test log %s', 'log value');
+  logger.error('test error %s', 'error value');
+
+  t.regex(t.context.log.args[0][0], /.*test log/);
+  t.regex(t.context.error.args[0][0], /.*test error/);
+  t.is(t.context.log.args[0][1], 'log value');
+  t.is(t.context.error.args[0][1], 'error value');
+});
+
+test.serial('Log with error stacktrace and properties', t => {
+  const error = new Error('error message');
+  logger.error(error);
+  const otherError = new Error('other error message');
+  logger.error('test error %O', otherError);
+
+  t.is(t.context.error.args[0][1], error);
+  t.regex(t.context.error.args[1][0], /.*test error/);
+  t.is(t.context.error.args[1][1], otherError);
+});

test/mocks/child-process.js

@@ -1,30 +0,0 @@
-var mockSpawn = require('mock-spawn')()
-mockSpawn.setStrategy(function (command, args, opts) {
-  return function (cb) {
-    this.stdout.write(
-      /\.\.HEAD/.test(args.join(' '))
-        ? rawCommits[0]
-        : rawCommits.join()
-    )
-    cb(0)
-  }
-})
-
-const rawCommits = [
-  'hash-one==SPLIT==commit-one==END==\n',
-  'hash-two==SPLIT==commit-two==END==\n'
-]
-
-module.exports = {
-  exec: function (command, options, cb) {
-    if (typeof cb === 'undefined' && typeof options === 'function') {
-      cb = options
-    }
-    if (/contains/.test(command)) {
-      if (/notinhistory/.test(command)) return cb(new Error())
-      return cb(null, 'whatever\nmaster\n')
-    }
-  },
-  spawn: mockSpawn,
-  '@noCallThru': true
-}

test/mocks/git-head.js

@@ -1,3 +0,0 @@
-module.exports = function (cb) {
-  cb(null, 'bar')
-}

test/mocks/github.js

@@ -1,12 +0,0 @@
-module.exports = function () {
-  return {
-    authenticate: function () {
-      return true
-    },
-    repos: {
-      createRelease: function (release, cb) {
-        cb(null)
-      }
-    }
-  }
-}

test/mocks/plugin-error-a.js

@@ -1,3 +0,0 @@
-module.exports = function (config, options, cb) {
-  cb(new Error('a'))
-}

test/mocks/plugin-error-b.js

@@ -1,3 +0,0 @@
-module.exports = function (config, options, cb) {
-  cb(new Error('b'))
-}

test/mocks/plugin-result-a.js

@@ -1,3 +0,0 @@
-module.exports = function (config, options, cb) {
-  cb(null, 'a')
-}

test/mocks/plugin-result-b.js

@@ -1,3 +0,0 @@
-module.exports = function (config, options, cb) {
-  cb(null, 'b')
-}

test/mocks/registry.js

@@ -1,28 +0,0 @@
-const nock = require('nock')
-
-const availableModule = {
-  'dist-tags': {
-    latest: '1.33.7',
-    foo: '0.8.15'
-  },
-  versions: {
-    '0.8.15': {
-      gitHead: 'bar'
-    },
-    '1.33.7': {
-      gitHead: 'HEAD'
-    }
-  }
-}
-
-module.exports = nock('http://registry.npmjs.org')
-  .get('/available')
-  .reply(200, availableModule)
-  .get('/tagged')
-  .reply(200, availableModule)
-  .get('/untagged')
-  .reply(200, availableModule)
-  .get('/@scoped%2Favailable')
-  .reply(200, availableModule)
-  .get('/unavailable')
-  .reply(404, {})

test/plugins/definitions.test.js

@@ -0,0 +1,101 @@
+import test from 'ava';
+import definitions from '../../lib/plugins/definitions';
+
+test('The "verifyConditions" plugin, if defined, must be a single or an array of plugins definition', t => {
+  t.false(definitions.verifyConditions.config.validator({}));
+  t.false(definitions.verifyConditions.config.validator({path: null}));
+
+  t.true(definitions.verifyConditions.config.validator({path: 'plugin-path.js'}));
+  t.true(definitions.verifyConditions.config.validator());
+  t.true(definitions.verifyConditions.config.validator('plugin-path.js'));
+  t.true(definitions.verifyConditions.config.validator(() => {}));
+  t.true(definitions.verifyConditions.config.validator([{path: 'plugin-path.js'}, 'plugin-path.js', () => {}]));
+});
+
+test('The "getLastRelease" plugin is mandatory, and must be a single plugin definition', t => {
+  t.false(definitions.getLastRelease.config.validator({}));
+  t.false(definitions.getLastRelease.config.validator({path: null}));
+  t.false(definitions.getLastRelease.config.validator([]));
+  t.false(definitions.getLastRelease.config.validator());
+
+  t.true(definitions.getLastRelease.config.validator({path: 'plugin-path.js'}));
+  t.true(definitions.getLastRelease.config.validator('plugin-path.js'));
+  t.true(definitions.getLastRelease.config.validator(() => {}));
+});
+
+test('The "analyzeCommits" plugin is mandatory, and must be a single plugin definition', t => {
+  t.false(definitions.analyzeCommits.config.validator({}));
+  t.false(definitions.analyzeCommits.config.validator({path: null}));
+  t.false(definitions.analyzeCommits.config.validator([]));
+  t.false(definitions.analyzeCommits.config.validator());
+
+  t.true(definitions.analyzeCommits.config.validator({path: 'plugin-path.js'}));
+  t.true(definitions.analyzeCommits.config.validator('plugin-path.js'));
+  t.true(definitions.analyzeCommits.config.validator(() => {}));
+});
+
+test('The "verifyRelease" plugin, if defined, must be a single or an array of plugins definition', t => {
+  t.false(definitions.verifyRelease.config.validator({}));
+  t.false(definitions.verifyRelease.config.validator({path: null}));
+
+  t.true(definitions.verifyRelease.config.validator({path: 'plugin-path.js'}));
+  t.true(definitions.verifyRelease.config.validator());
+  t.true(definitions.verifyRelease.config.validator('plugin-path.js'));
+  t.true(definitions.verifyRelease.config.validator(() => {}));
+  t.true(definitions.verifyRelease.config.validator([{path: 'plugin-path.js'}, 'plugin-path.js', () => {}]));
+});
+
+test('The "generateNotes" plugin, if defined, must be a single plugin definition', t => {
+  t.false(definitions.generateNotes.config.validator({}));
+  t.false(definitions.generateNotes.config.validator({path: null}));
+  t.false(definitions.generateNotes.config.validator([]));
+
+  t.true(definitions.generateNotes.config.validator());
+  t.true(definitions.generateNotes.config.validator({path: 'plugin-path.js'}));
+  t.true(definitions.generateNotes.config.validator('plugin-path.js'));
+  t.true(definitions.generateNotes.config.validator(() => {}));
+});
+
+test('The "publish" plugin is mandatory, and must be a single or an array of plugins definition', t => {
+  t.false(definitions.publish.config.validator({}));
+  t.false(definitions.publish.config.validator({path: null}));
+  t.false(definitions.publish.config.validator());
+
+  t.true(definitions.publish.config.validator({path: 'plugin-path.js'}));
+  t.true(definitions.publish.config.validator('plugin-path.js'));
+  t.true(definitions.publish.config.validator(() => {}));
+  t.true(definitions.publish.config.validator([{path: 'plugin-path.js'}, 'plugin-path.js', () => {}]));
+});
+
+test('The "getLastRelease" plugin output if defined, must be an object with a valid semver version in the "version" property and the corresponding git reference in "gitHead" property', t => {
+  t.false(definitions.getLastRelease.output.validator('string'));
+  t.false(definitions.getLastRelease.output.validator(1));
+  t.false(definitions.getLastRelease.output.validator({version: 'v1.0.0'}));
+  t.false(definitions.getLastRelease.output.validator({version: 'invalid'}));
+
+  t.true(definitions.getLastRelease.output.validator());
+  t.true(definitions.getLastRelease.output.validator({}));
+  t.true(definitions.getLastRelease.output.validator({version: 'v1.0.0', gitHead: '123'}));
+  t.true(definitions.getLastRelease.output.validator({version: '1.0.0', gitHead: '123'}));
+  t.true(definitions.getLastRelease.output.validator({version: null}));
+});
+
+test('The "analyzeCommits" plugin output must be either undefined or a valid semver release type', t => {
+  t.false(definitions.analyzeCommits.output.validator('invalid'));
+  t.false(definitions.analyzeCommits.output.validator(1));
+  t.false(definitions.analyzeCommits.output.validator({}));
+
+  t.true(definitions.analyzeCommits.output.validator());
+  t.true(definitions.analyzeCommits.output.validator(null));
+  t.true(definitions.analyzeCommits.output.validator('major'));
+});
+
+test('The "generateNotes" plugin output, if defined, must be a string', t => {
+  t.false(definitions.generateNotes.output.validator(1));
+  t.false(definitions.generateNotes.output.validator({}));
+
+  t.true(definitions.generateNotes.output.validator());
+  t.true(definitions.generateNotes.output.validator(null));
+  t.true(definitions.generateNotes.output.validator(''));
+  t.true(definitions.generateNotes.output.validator('string'));
+});

test/plugins/normalize.test.js

@@ -0,0 +1,143 @@
+import test from 'ava';
+import {noop} from 'lodash';
+import {stub} from 'sinon';
+import normalize from '../../lib/plugins/normalize';
+
+test.beforeEach(t => {
+  // Stub the logger functions
+  t.context.log = stub();
+  t.context.logger = {log: t.context.log};
+});
+
+test('Normalize and load plugin from string', t => {
+  const plugin = normalize('verifyConditions', {}, {}, './test/fixtures/plugin-noop', t.context.logger);
+
+  t.is(typeof plugin, 'function');
+  t.deepEqual(t.context.log.args[0], ['Load plugin %s from %s', 'verifyConditions', './test/fixtures/plugin-noop']);
+});
+
+test('Normalize and load plugin from object', t => {
+  const plugin = normalize('publish', {}, {}, {path: './test/fixtures/plugin-noop'}, t.context.logger);
+
+  t.is(typeof plugin, 'function');
+  t.deepEqual(t.context.log.args[0], ['Load plugin %s from %s', 'publish', './test/fixtures/plugin-noop']);
+});
+
+test('Normalize and load plugin from a base file path', t => {
+  const plugin = normalize(
+    'verifyConditions',
+    {'./plugin-noop': './test/fixtures'},
+    {},
+    './plugin-noop',
+    t.context.logger
+  );
+
+  t.is(typeof plugin, 'function');
+  t.deepEqual(t.context.log.args[0], [
+    'Load plugin %s from %s in shareable config %s',
+    'verifyConditions',
+    './plugin-noop',
+    './test/fixtures',
+  ]);
+});
+
+test('Normalize and load plugin from function', t => {
+  const plugin = normalize('', {}, {}, () => {}, t.context.logger);
+
+  t.is(typeof plugin, 'function');
+});
+
+test('Normalize and load plugin that retuns multiple functions', t => {
+  const plugin = normalize('verifyConditions', {}, {}, './test/fixtures/multi-plugin', t.context.logger);
+
+  t.is(typeof plugin, 'function');
+  t.deepEqual(t.context.log.args[0], ['Load plugin %s from %s', 'verifyConditions', './test/fixtures/multi-plugin']);
+});
+
+test('Wrap plugin in a function that validate the output of the plugin', async t => {
+  const pluginFunction = stub().resolves(1);
+  const plugin = normalize('', {}, {}, pluginFunction, t.context.logger, {
+    validator: output => output === 1,
+    message: 'The output must be 1.',
+  });
+
+  await t.notThrows(plugin());
+
+  pluginFunction.resolves(2);
+  const error = await t.throws(plugin(), Error);
+  t.is(error.message, 'The output must be 1. Received: 2');
+});
+
+test('Plugin is called with "pluginConfig" (omitting "path", adding global config) and input', async t => {
+  const pluginFunction = stub().resolves();
+  const conf = {path: pluginFunction, conf: 'confValue'};
+  const globalConf = {global: 'globalValue'};
+  const plugin = normalize('', {}, globalConf, conf, t.context.logger);
+  await plugin('param');
+
+  t.true(pluginFunction.calledWith({conf: 'confValue', global: 'globalValue'}, 'param'));
+});
+
+test('Prevent plugins to modify "pluginConfig"', async t => {
+  const pluginFunction = stub().callsFake(pluginConfig => {
+    pluginConfig.conf.subConf = 'otherConf';
+  });
+  const conf = {path: pluginFunction, conf: {subConf: 'originalConf'}};
+  const globalConf = {globalConf: {globalSubConf: 'originalGlobalConf'}};
+  const plugin = normalize('', {}, globalConf, conf, t.context.logger);
+  await plugin();
+
+  t.is(conf.conf.subConf, 'originalConf');
+  t.is(globalConf.globalConf.globalSubConf, 'originalGlobalConf');
+});
+
+test('Prevent plugins to modify its input', async t => {
+  const pluginFunction = stub().callsFake((pluginConfig, options) => {
+    options.param.subParam = 'otherParam';
+  });
+  const input = {param: {subParam: 'originalSubParam'}};
+  const plugin = normalize('', {}, {}, pluginFunction, t.context.logger);
+  await plugin(input);
+
+  t.is(input.param.subParam, 'originalSubParam');
+});
+
+test('Return noop if the plugin is not defined', t => {
+  const plugin = normalize();
+
+  t.is(plugin, noop);
+});
+
+test('Always pass a defined "pluginConfig" for plugin defined with string', async t => {
+  // Call the normalize function with the path of a plugin that returns its config
+  const plugin = normalize('', {}, {}, './test/fixtures/plugin-result-config', t.context.logger);
+  const pluginResult = await plugin();
+
+  t.deepEqual(pluginResult.pluginConfig, {});
+});
+
+test('Always pass a defined "pluginConfig" for plugin defined with path', async t => {
+  // Call the normalize function with the path of a plugin that returns its config
+  const plugin = normalize('', {}, {}, {path: './test/fixtures/plugin-result-config'}, t.context.logger);
+  const pluginResult = await plugin();
+
+  t.deepEqual(pluginResult.pluginConfig, {});
+});
+
+test('Throws an error if the plugin return an object without the expected plugin function', t => {
+  const error = t.throws(() => normalize('inexistantPlugin', {}, {}, './test/fixtures/multi-plugin', t.context.logger));
+
+  t.is(error.code, 'EPLUGINCONF');
+  t.is(error.name, 'SemanticReleaseError');
+  t.is(
+    error.message,
+    'The inexistantPlugin plugin must be a function, or an object with a function in the property inexistantPlugin.'
+  );
+});
+
+test('Throws an error if the plugin is not found', t => {
+  const error = t.throws(() => normalize('inexistantPlugin', {}, {}, 'non-existing-path', t.context.logger), Error);
+
+  t.is(error.message, "Cannot find module 'non-existing-path'");
+  t.is(error.code, 'MODULE_NOT_FOUND');
+});

test/plugins/pipeline.test.js

@@ -0,0 +1,40 @@
+import test from 'ava';
+import {stub} from 'sinon';
+import pipeline from '../../lib/plugins/pipeline';
+
+test('Execute each function in series passing the same input', async t => {
+  const step1 = stub().resolves(1);
+  const step2 = stub().resolves(2);
+  const step3 = stub().resolves(3);
+
+  const result = await pipeline([step1, step2, step3])(0);
+  t.deepEqual(result, [1, 2, 3]);
+  t.true(step1.calledWith(0));
+  t.true(step2.calledWith(0));
+  t.true(step3.calledWith(0));
+});
+
+test('Execute each function in series passing a transformed input', async t => {
+  const step1 = stub().resolves(1);
+  const step2 = stub().resolves(2);
+  const step3 = stub().resolves(3);
+
+  const result = await pipeline([step1, step2, step3])(0, (prevResult, result) => prevResult + result);
+
+  t.deepEqual(result, [1, 2, 3]);
+  t.true(step1.calledWith(0));
+  t.true(step2.calledWith(1));
+  t.true(step3.calledWith(3));
+});
+
+test('Stop execution and throw error is a step rejects', async t => {
+  const step1 = stub().resolves(1);
+  const step2 = stub().throws(new Error('test error'));
+  const step3 = stub().resolves(3);
+
+  const error = await t.throws(pipeline([step1, step2, step3])(0), Error);
+  t.is(error.message, 'test error');
+  t.true(step1.calledWith(0));
+  t.true(step2.calledWith(0));
+  t.true(step3.notCalled);
+});

test/plugins/plugins.test.js

@@ -0,0 +1,156 @@
+import path from 'path';
+import test from 'ava';
+import {copy, outputFile} from 'fs-extra';
+import {stub} from 'sinon';
+import tempy from 'tempy';
+import getPlugins from '../../lib/plugins';
+
+// Save the current working diretory
+const cwd = process.cwd();
+
+test.beforeEach(t => {
+  // Stub the logger functions
+  t.context.log = stub();
+  t.context.logger = {log: t.context.log};
+});
+
+test.afterEach.always(() => {
+  // Restore the current working directory
+  process.chdir(cwd);
+});
+
+test('Export default plugins', t => {
+  const plugins = getPlugins({}, {}, t.context.logger);
+
+  // Verify the module returns a function for each plugin
+  t.is(typeof plugins.verifyConditions, 'function');
+  t.is(typeof plugins.getLastRelease, 'function');
+  t.is(typeof plugins.analyzeCommits, 'function');
+  t.is(typeof plugins.verifyRelease, 'function');
+  t.is(typeof plugins.generateNotes, 'function');
+  t.is(typeof plugins.publish, 'function');
+});
+
+test('Export plugins based on config', t => {
+  const plugins = getPlugins(
+    {
+      verifyConditions: ['./test/fixtures/plugin-noop', {path: './test/fixtures/plugin-noop'}],
+      getLastRelease: './test/fixtures/plugin-noop',
+      analyzeCommits: {path: './test/fixtures/plugin-noop'},
+      verifyRelease: () => {},
+    },
+    {},
+    t.context.logger
+  );
+
+  // Verify the module returns a function for each plugin
+  t.is(typeof plugins.verifyConditions, 'function');
+  t.is(typeof plugins.getLastRelease, 'function');
+  t.is(typeof plugins.analyzeCommits, 'function');
+  t.is(typeof plugins.verifyRelease, 'function');
+  t.is(typeof plugins.generateNotes, 'function');
+  t.is(typeof plugins.publish, 'function');
+});
+
+test.serial('Export plugins loaded from the dependency of a shareable config module', async t => {
+  const temp = tempy.directory();
+  await copy(
+    './test/fixtures/plugin-noop.js',
+    path.join(temp, 'node_modules/shareable-config/node_modules/custom-plugin/index.js')
+  );
+  await outputFile(path.join(temp, 'node_modules/shareable-config/index.js'), '');
+  process.chdir(temp);
+
+  const plugins = getPlugins(
+    {
+      verifyConditions: ['custom-plugin', {path: 'custom-plugin'}],
+      getLastRelease: 'custom-plugin',
+      analyzeCommits: {path: 'custom-plugin'},
+      verifyRelease: () => {},
+    },
+    {'custom-plugin': 'shareable-config'},
+    t.context.logger
+  );
+
+  // Verify the module returns a function for each plugin
+  t.is(typeof plugins.verifyConditions, 'function');
+  t.is(typeof plugins.getLastRelease, 'function');
+  t.is(typeof plugins.analyzeCommits, 'function');
+  t.is(typeof plugins.verifyRelease, 'function');
+  t.is(typeof plugins.generateNotes, 'function');
+  t.is(typeof plugins.publish, 'function');
+});
+
+test.serial('Export plugins loaded from the dependency of a shareable config file', async t => {
+  const temp = tempy.directory();
+  await copy('./test/fixtures/plugin-noop.js', path.join(temp, 'plugin/plugin-noop.js'));
+  await outputFile(path.join(temp, 'shareable-config.js'), '');
+  process.chdir(temp);
+
+  const plugins = getPlugins(
+    {
+      verifyConditions: ['./plugin/plugin-noop', {path: './plugin/plugin-noop'}],
+      getLastRelease: './plugin/plugin-noop',
+      analyzeCommits: {path: './plugin/plugin-noop'},
+      verifyRelease: () => {},
+    },
+    {'./plugin/plugin-noop': './shareable-config.js'},
+    t.context.logger
+  );
+
+  // Verify the module returns a function for each plugin
+  t.is(typeof plugins.verifyConditions, 'function');
+  t.is(typeof plugins.getLastRelease, 'function');
+  t.is(typeof plugins.analyzeCommits, 'function');
+  t.is(typeof plugins.verifyRelease, 'function');
+  t.is(typeof plugins.generateNotes, 'function');
+  t.is(typeof plugins.publish, 'function');
+});
+
+test('Use default when only options are passed for a single plugin', t => {
+  const plugins = getPlugins({getLastRelease: {}, analyzeCommits: {}}, {}, t.context.logger);
+
+  // Verify the module returns a function for each plugin
+  t.is(typeof plugins.getLastRelease, 'function');
+  t.is(typeof plugins.analyzeCommits, 'function');
+});
+
+test('Merge global options with plugin options', async t => {
+  const plugins = getPlugins(
+    {
+      globalOpt: 'global',
+      otherOpt: 'globally-defined',
+      getLastRelease: {path: './test/fixtures/plugin-result-config', localOpt: 'local', otherOpt: 'locally-defined'},
+    },
+    {},
+    t.context.logger
+  );
+
+  const result = await plugins.getLastRelease();
+
+  t.deepEqual(result.pluginConfig, {localOpt: 'local', globalOpt: 'global', otherOpt: 'locally-defined'});
+});
+
+test('Throw an error if plugin configuration is missing a path for plugin pipeline', t => {
+  const error = t.throws(() => getPlugins({verifyConditions: {}}, {}, t.context.logger));
+
+  t.is(error.name, 'SemanticReleaseError');
+  t.is(error.code, 'EPLUGINCONF');
+  t.is(
+    error.message,
+    'The "verifyConditions" plugin, if defined, must be a single or an array of plugins definition. A plugin definition is either a string or an object with a path property.'
+  );
+});
+
+test('Throw an error if an array of plugin configuration is missing a path for plugin pipeline', t => {
+  const error = t.throws(() =>
+    getPlugins({verifyConditions: [{path: '@semantic-release/npm'}, {}]}, {}, t.context.logger)
+  );
+
+  t.is(error.name, 'SemanticReleaseError');
+  t.is(error.code, 'EPLUGINCONF');
+  t.is(
+    error.message,
+    'The "verifyConditions" plugin, if defined, must be a single or an array of plugins definition. A plugin definition is either a string or an object with a path property.'
+  );
+});

test/registry/index.js

@@ -1,11 +0,0 @@
-var exec = require('child_process').exec
-
-var opts = {
-  cwd: __dirname
-}
-
-module.exports = {
-  start: exec.bind(null, './start.sh', opts),
-  stop: exec.bind(null, './stop.sh', opts),
-  uri: 'http://localhost:' + (process.env.TRAVIS === 'true' ? 5984 : 15986) + '/registry/_design/app/_rewrite/'
-}

test/registry/local.ini

@@ -1,19 +0,0 @@
-[couchdb]
-database_dir = data
-view_index_dir = data
-delayed_commits = false
-
-[couch_httpd_auth]
-public_fields = appdotnet, avatar, avatarMedium, avatarLarge, date, email, fields, freenode, fullname, github, homepage, name, roles, twitter, type, _id, _rev
-users_db_public = true
-
-[httpd]
-port = 15986
-bind_address = 127.0.0.1
-secure_rewrites = false
-
-[log]
-file = couch/couch.log
-
-[admins]
-admin = -pbkdf2-89582b49cd2e8443e29a841f5a76d367956a8e58,1afa2f1531a17ac97f2ac9e334293753,10

test/registry/start.sh

@@ -1,41 +0,0 @@
-#!/bin/bash
-
-# exit if an error occurs
-set -e
-
-cd $(dirname $0)
-
-mkdir -p couch
-
-if [[ $TRAVIS = true ]]
-then
-  COUCH=http://admin:password@127.0.0.1:5984
-
-  curl -X PUT http://127.0.0.1:5984/_config/admins/admin -d '"password"'
-
-  curl -X PUT $COUCH/_config/couchdb/delayed_commits -d '"false"'
-  curl -X PUT $COUCH/_config/couch_httpd_auth/users_db_public -d '"true"'
-  curl -X PUT $COUCH/_config/couch_httpd_auth/public_fields -d '"appdotnet, avatar, avatarMedium, avatarLarge, date, email, fields, freenode, fullname, github, homepage, name, roles, twitter, type, _id, _rev"'
-  curl -X PUT $COUCH/_config/httpd/secure_rewrites -d '"false"'
-
-else
-  COUCH=http://admin:password@127.0.0.1:15986
-  couchdb -b -a local.ini -p couch/pid -o couch/stdout.log -e couch/stderr.log
-  # wait for couch to start
-  sleep 1
-fi
-
-# create "registry" database
-curl -X PUT $COUCH/registry
-
-# create sample npm user
-curl -X PUT $COUCH/_users/org.couchdb.user:integration -H Content-Type:application/json --data-binary '{"_id": "org.couchdb.user:integration", "name": "integration", "roles": [], "type": "user", "password": "suchsecure", "email": "integration@test.com"}'
-
-# npm-registry-couchpp needs this variable set to run
-export DEPLOY_VERSION=nope
-
-# setup npm-registry-couchapp
-npm explore npm-registry-couchapp -- npm start --npm-registry-couchapp:couch=$COUCH/registry
-npm explore npm-registry-couchapp -- npm run load --npm-registry-couchapp:couch=$COUCH/registry
-export NO_PROMPT=yes
-npm explore npm-registry-couchapp -- npm run copy --npm-registry-couchapp:couch=$COUCH/registry

test/registry/stop.sh

@@ -1,13 +0,0 @@
-#!/bin/bash
-
-# close couchdb background process
-couchdb -d
-
-# delete data and logs
-cd $(dirname $0)
-
-cat couch/{couch,stdout,stderr}.log
-
-cat couch/pid | xargs kill
-rm -rf couch
-rm -rf data

test/scenarios/pre.js

@@ -1,96 +0,0 @@
-var join = require('path').join
-
-var tap = require('tap')
-var rimraf = require('rimraf')
-
-var registry = require('../registry')
-var testModule = require('../lib/test-module')
-var baseScenario = require('../lib/base-scenario')
-
-var tearDown = tap.tearDown
-var test = tap.test
-
-test('change version', {bail: process.env.TRAVIS === 'true'}, function (t) {
-  t.plan(7)
-
-  registry.start(function (err, stdout, stderr) {
-    t.error(err, 'registry started')
-    if (err) return t.end()
-
-    testModule('change-version', registry.uri, function (err, cwd) {
-      t.error(err, 'test-module created')
-      if (err) return t.end()
-
-      t.test('no version', function (tt) {
-        tt.plan(1)
-
-        baseScenario(cwd, registry.uri)
-          .env('npm_config_loglevel', 'info')
-          .run('node ../../../bin/semantic-release.js pre')
-          .stderr(/ENOCHANGE/)
-          .code(1)
-          .end(tt.error)
-      })
-
-      t.test('initial version', function (tt) {
-        tt.plan(1)
-
-        baseScenario(cwd, registry.uri)
-          .exec('git commit -m "feat: initial" --allow-empty')
-          .exec('node ../../../bin/semantic-release.js pre')
-          .run('npm publish')
-          .stdout(/1\.0\.0/)
-          .code(0)
-          .end(tt.error)
-      })
-
-      t.test('patch version', function (tt) {
-        tt.plan(1)
-
-        baseScenario(cwd, registry.uri)
-          .exec('git commit -m "fix: foo" --allow-empty')
-          .exec('node ../../../bin/semantic-release.js pre')
-          .run('npm publish')
-          .stdout(/1\.0\.1/)
-          .code(0)
-          .end(tt.error)
-      })
-
-      t.test('feature version', function (tt) {
-        tt.plan(1)
-
-        baseScenario(cwd, registry.uri)
-          .exec('git commit -m "feat: foo" --allow-empty')
-          .exec('node ../../../bin/semantic-release.js pre')
-          .run('npm publish')
-          .code(0)
-          .stdout(/1\.1\.0/)
-          .end(tt.error)
-      })
-
-      t.test('breaking version', function (tt) {
-        tt.plan(1)
-
-        baseScenario(cwd, registry.uri)
-          .exec('git commit -m "feat: foo\n\n BREAKING CHANGE: bar" --allow-empty')
-          .exec('node ../../../bin/semantic-release.js pre')
-          .run('npm publish')
-          .code(0)
-          .stdout(/2\.0\.0/)
-          .end(tt.error)
-      })
-    })
-  })
-})
-
-tearDown(function () {
-  if (process.env.TRAVIS === 'true') return
-
-  function cb (err, stdout, stderr) {
-    if (err) console.log(err)
-    if (stderr) console.log(stderr)
-  }
-
-  rimraf(join(__dirname, '../tmp'), cb)
-  registry.stop(cb)
-})

test/specs/commits.js

@@ -1,43 +0,0 @@
-var test = require('tap').test
-var proxyquire = require('proxyquire')
-
-var commits = proxyquire('../../src/lib/commits', {
-  'npmlog': {
-    error: function () {}
-  },
-  'child_process': require('../mocks/child-process')
-})
-
-test('commits since last release', function (t) {
-  t.test('get all commits', function (tt) {
-    commits({lastRelease: {}, options: {branch: 'master'}}, function (err, commits) {
-      tt.error(err)
-      tt.is(commits.length, 2, 'all commits')
-      tt.is(commits[0].hash, 'hash-one', 'parsed hash')
-      tt.is(commits[1].message, 'commit-two', 'parsed message')
-
-      tt.end()
-    })
-  })
-
-  t.test('get commits since hash', function (tt) {
-    commits({lastRelease: {gitHead: 'hash'}, options: {branch: 'master'}}, function (err, commits) {
-      tt.error(err)
-      tt.is(commits.length, 1, 'specified commits')
-      tt.is(commits[0].hash, 'hash-one', 'parsed hash')
-      tt.is(commits[0].message, 'commit-one', 'parsed message')
-
-      tt.end()
-    })
-  })
-
-  t.test('get commits since hash', function (tt) {
-    commits({lastRelease: {gitHead: 'notinhistory'}, options: {branch: 'notmaster'}}, function (err, commits) {
-      tt.ok(err)
-      tt.is(err.code, 'ENOTINHISTORY')
-      tt.end()
-    })
-  })
-
-  t.end()
-})

test/specs/get-registry.js

@@ -1,44 +0,0 @@
-const test = require('tap').test
-
-const getRegistry = require('../../src/lib/get-registry')
-
-test('get correct registry', function (t) {
-  t.is(getRegistry({
-    name: 'publish-config',
-    publishConfig: {
-      registry: 'a'
-    }},
-  {}), 'a')
-
-  t.is(getRegistry({name: 'normal'}, {
-    get: function () {
-      return 'b'
-    }
-  }), 'b')
-
-  t.is(getRegistry({name: 'normal'}, {
-    get: function () {
-      return null
-    }
-  }), 'https://registry.npmjs.org/')
-
-  t.is(getRegistry({name: '@scoped/foo'}, {
-    get: function (input) {
-      return input === '@scoped/registry' ? 'c' : 'd'
-    }
-  }), 'c')
-
-  t.is(getRegistry({name: '@scoped/bar'}, {
-    get: function () {
-      return 'e'
-    }
-  }), 'e')
-
-  t.is(getRegistry({name: '@scoped/baz'}, {
-    get: function () {
-      return null
-    }
-  }), 'https://registry.npmjs.org/')
-
-  t.end()
-})

test/specs/plugins.js

@@ -1,97 +0,0 @@
-var test = require('tap').test
-
-var plugins = require('../../src/lib/plugins')
-
-test('export plugins', function (t) {
-  t.plan(5)
-
-  var defaultPlugins = plugins({})
-
-  t.is(typeof defaultPlugins.analyzeCommits, 'function')
-  t.is(typeof defaultPlugins.generateNotes, 'function')
-  t.is(typeof defaultPlugins.verifyConditions, 'function')
-  t.is(typeof defaultPlugins.verifyRelease, 'function')
-  t.is(typeof defaultPlugins.getLastRelease, 'function')
-})
-
-test('plugin pipelines', function (t) {
-  t.plan(3)
-
-  t.test('get all results', function (tt) {
-    var pipelinePlugins = plugins({
-      verifyRelease: [
-        './src/lib/plugin-noop',
-        './test/mocks/plugin-result-a',
-        './test/mocks/plugin-result-b'
-      ]
-    })
-
-    pipelinePlugins.verifyRelease({}, function (err, results) {
-      tt.error(err)
-      tt.same(results, [undefined, 'a', 'b'])
-      tt.end()
-    })
-  })
-
-  t.test('get first error', function (tt) {
-    var pipelinePlugins = plugins({
-      verifyConditions: [
-        './src/lib/plugin-noop',
-        './test/mocks/plugin-error-a',
-        './test/mocks/plugin-error-b'
-      ]
-    })
-
-    pipelinePlugins.verifyConditions({}, function (err) {
-      tt.is(err.message, 'a')
-      tt.end()
-    })
-  })
-
-  t.test('get error and only results before', function (tt) {
-    var pipelinePlugins = plugins({
-      verifyRelease: [
-        './src/lib/plugin-noop',
-        './test/mocks/plugin-result-a',
-        './test/mocks/plugin-error-b',
-        './test/mocks/plugin-result-b'
-      ]
-    })
-
-    pipelinePlugins.verifyRelease({}, function (err, results) {
-      tt.is(err.message, 'b')
-      tt.same(results, [undefined, 'a', undefined])
-      tt.end()
-    })
-  })
-})
-
-test('normalize and load plugin', function (t) {
-  t.test('load from string', function (tt) {
-    var plugin = plugins.normalize('./src/lib/plugin-noop')
-
-    tt.is(typeof plugin, 'function')
-
-    tt.end()
-  })
-
-  t.test('load from object', function (tt) {
-    var plugin = plugins.normalize({
-      path: './src/lib/plugin-noop'
-    })
-
-    tt.is(typeof plugin, 'function')
-
-    tt.end()
-  })
-
-  t.test('load from fallback', function (tt) {
-    var plugin = plugins.normalize(null, '../../src/lib/plugin-noop')
-
-    tt.is(typeof plugin, 'function')
-
-    tt.end()
-  })
-
-  t.end()
-})

test/specs/post.js

@@ -1,74 +0,0 @@
-var defaults = require('lodash').defaults
-var test = require('tap').test
-var proxyquire = require('proxyquire')
-
-var post = proxyquire('../../src/post', {
-  'git-head': require('../mocks/git-head'),
-  github: require('../mocks/github')
-})
-
-var pkg = {
-  version: '1.0.0',
-  repository: {url: 'http://github.com/whats/up.git'}
-}
-
-var plugins = {
-  generateNotes: function (pkg, cb) {
-    cb(null, 'the log')
-  }
-}
-
-var defaultRelease = {
-  owner: 'whats',
-  repo: 'up',
-  name: 'v1.0.0',
-  tag_name: 'v1.0.0',
-  target_commitish: 'bar',
-  body: 'the log'
-}
-
-test('full post run', function (t) {
-  t.test('in debug mode w/o token', function (tt) {
-    post({
-      options: {debug: true},
-      pkg: pkg,
-      plugins: plugins
-    }, function (err, published, release) {
-      tt.error(err)
-      tt.is(published, false)
-      tt.match(release, defaults({draft: true}, defaultRelease))
-
-      tt.end()
-    })
-  })
-
-  t.test('in debug mode w/token', function (tt) {
-    post({
-      options: {debug: true, githubToken: 'yo'},
-      pkg: pkg,
-      plugins: plugins
-    }, function (err, published, release) {
-      tt.error(err)
-      tt.is(published, true)
-      tt.match(release, defaults({draft: true}, defaultRelease))
-
-      tt.end()
-    })
-  })
-
-  t.test('production', function (tt) {
-    post({
-      options: {githubToken: 'yo'},
-      pkg: pkg,
-      plugins: plugins
-    }, function (err, published, release) {
-      tt.error(err)
-      tt.is(published, true)
-      tt.match(release, defaultRelease)
-
-      tt.end()
-    })
-  })
-
-  t.end()
-})

test/specs/pre.js

@@ -1,64 +0,0 @@
-var test = require('tap').test
-var proxyquire = require('proxyquire')
-
-require('../mocks/registry')
-var pre = proxyquire('../../src/pre', {
-  './lib/commits': proxyquire('../../src/lib/commits', {
-    'child_process': require('../mocks/child-process')
-  })
-})
-
-var versions = {
-  available: '1.0.0'
-}
-
-var plugins = {
-  verifyRelease: function (release, cb) {
-    cb(null, release)
-  },
-  analyzeCommits: function (commits, cb) {
-    cb(null, 'major')
-  },
-  getLastRelease: function (config, cb) {
-    cb(null, {version: versions[config.pkg.name] || null, gitHead: 'HEAD'})
-  }
-}
-
-var npm = {
-  registry: 'http://registry.npmjs.org/',
-  tag: 'latest'
-}
-
-test('full pre run', function (t) {
-  t.test('increase version', function (tt) {
-    tt.plan(3)
-
-    pre({
-      options: {branch: 'master'},
-      npm: npm,
-      pkg: {name: 'available'},
-      plugins: plugins
-    }, function (err, release) {
-      tt.error(err)
-      tt.is(release.type, 'major')
-      tt.is(release.version, '2.0.0')
-    })
-  })
-
-  t.test('increase version', function (tt) {
-    tt.plan(3)
-
-    pre({
-      options: {branch: 'master'},
-      npm: npm,
-      pkg: {name: 'unavailable'},
-      plugins: plugins
-    }, function (err, release) {
-      tt.error(err)
-      tt.is(release.type, 'initial')
-      tt.is(release.version, '1.0.0')
-    })
-  })
-
-  t.end()
-})

test/specs/type.js

@@ -1,60 +0,0 @@
-var test = require('tap').test
-
-var type = require('../../src/lib/type')
-
-test('get type from commits', function (t) {
-  t.test('get type from plugin', function (tt) {
-    tt.plan(2)
-
-    type({
-      commits: [{
-        hash: '0',
-        message: 'a'
-      }],
-      lastRelease: {version: '1.0.0'},
-      plugins: {
-        analyzeCommits: function (config, cb) {
-          cb(null, 'major')
-        }
-      }
-    }, function (err, type) {
-      tt.error(err)
-      tt.is(type, 'major')
-    })
-  })
-
-  t.test('error when no changes', function (tt) {
-    tt.plan(1)
-
-    type({
-      commits: [],
-      lastRelease: {},
-      plugins: {
-        analyzeCommits: function (config, cb) {
-          cb(null, null)
-        }
-      }
-    }, function (err) {
-      tt.is(err.code, 'ENOCHANGE')
-    })
-  })
-
-  t.test('initial version', function (tt) {
-    tt.plan(2)
-
-    type({
-      commits: [],
-      lastRelease: {},
-      plugins: {
-        analyzeCommits: function (config, cb) {
-          cb(null, 'major')
-        }
-      }
-    }, function (err, type) {
-      tt.error(err)
-      tt.is(type, 'initial')
-    })
-  })
-
-  t.end()
-})

test/specs/verify.js

@@ -1,73 +0,0 @@
-var test = require('tap').test
-
-var verify = require('../../src/lib/verify')
-
-test('verify pkg, options and env', function (t) {
-  t.test('dry run verification', function (tt) {
-    var noErrors = verify({
-      options: {debug: true},
-      pkg: {
-        name: 'package',
-        repository: {
-          url: 'http://github.com/whats/up.git'
-        }
-      }
-    })
-
-    tt.is(noErrors.length, 0)
-
-    var errors = verify({
-      options: {debug: true},
-      pkg: {}
-    })
-
-    tt.is(errors.length, 2)
-    tt.is(errors[0].code, 'ENOPKGNAME')
-    tt.is(errors[1].code, 'ENOPKGREPO')
-
-    tt.end()
-  })
-
-  t.test('dry run verification for gitlab repo', function (tt) {
-    var noErrors = verify({
-      options: {debug: true},
-      pkg: {
-        name: 'package',
-        repository: {
-          url: 'http://gitlab.corp.com/whats/up.git'
-        }
-      }
-    })
-
-    console.log(noErrors)
-    tt.is(noErrors.length, 0)
-    tt.end()
-  })
-
-  t.test('publish verification', function (tt) {
-    var noErrors = verify({
-      env: {NPM_TOKEN: 'yo'},
-      options: {githubToken: 'sup'},
-      pkg: {
-        name: 'package',
-        repository: {
-          url: 'http://github.com/whats/up.git'
-        }
-      }
-    })
-
-    tt.is(noErrors.length, 0)
-
-    var errors = verify({env: {}, options: {}, pkg: {}})
-
-    tt.is(errors.length, 4)
-    tt.is(errors[0].code, 'ENOPKGNAME')
-    tt.is(errors[1].code, 'ENOPKGREPO')
-    tt.is(errors[2].code, 'ENOGHTOKEN')
-    tt.is(errors[3].code, 'ENONPMTOKEN')
-
-    tt.end()
-  })
-
-  t.end()
-})