fix: add debug log for git fetch command

cli.js

@@ -1,5 +1,3 @@
-const {pickBy, isUndefined} = require('lodash');
-
 const stringList = {
   type: 'string',
   array: true,
@@ -13,6 +11,7 @@ module.exports = async () => {
   const cli = require('yargs')
     .command('$0', 'Run automated package publishing', yargs => {
       yargs.demandCommand(0, 0).usage(`Run automated package publishing
+
 Usage:
   semantic-release [options] [plugins]`);
     })
@@ -20,7 +19,7 @@ Usage:
     .option('r', {alias: 'repository-url', describe: 'Git repository URL', type: 'string', group: 'Options'})
     .option('t', {alias: 'tag-format', describe: 'Git tag format', type: 'string', group: 'Options'})
     .option('e', {alias: 'extends', describe: 'Shareable configurations', ...stringList, group: 'Options'})
-    .option('ci', {describe: 'Toggle CI verifications', default: undefined, type: 'boolean', group: 'Options'})
+    .option('ci', {describe: 'Toggle CI verifications', type: 'boolean', group: 'Options'})
     .option('verify-conditions', {...stringList, group: 'Plugins'})
     .option('analyze-commits', {type: 'string', group: 'Plugins'})
     .option('verify-release', {...stringList, group: 'Plugins'})
@@ -29,16 +28,15 @@ Usage:
     .option('publish', {...stringList, group: 'Plugins'})
     .option('success', {...stringList, group: 'Plugins'})
     .option('fail', {...stringList, group: 'Plugins'})
-    .option('debug', {describe: 'Output debugging information', default: undefined, type: 'boolean', group: 'Options'})
-    .option('d', {alias: 'dry-run', describe: 'Skip publishing', default: undefined, type: 'boolean', group: 'Options'})
-    .option('h', {alias: 'help', default: undefined, group: 'Options'})
-    .option('v', {alias: 'version', default: undefined, group: 'Options'})
+    .option('debug', {describe: 'Output debugging information', type: 'boolean', group: 'Options'})
+    .option('d', {alias: 'dry-run', describe: 'Skip publishing', type: 'boolean', group: 'Options'})
+    .option('h', {alias: 'help', group: 'Options'})
+    .option('v', {alias: 'version', group: 'Options'})
     .strict(false)
     .exitProcess(false);
 
   try {
-    // Remove option with undefined values, as yargs sets non defined options as `undefined`
-    const {help, version, ...opts} = pickBy(cli.argv, value => !isUndefined(value));
+    const {help, version, ...opts} = cli.argv;
 
     if (Boolean(help) || Boolean(version)) {
       process.exitCode = 0;

docs/recipes/circleci-workflows.md

@@ -59,7 +59,7 @@ A `package.json` is required only for [local](../usage/installation.md#local-ins
 ```json
 {
   "devDependencies": {
-    "semantic-release": "^12.0.0"
+    "semantic-release": "^15.0.0"
   }
 }
 ```

docs/recipes/gitlab-ci.md

@@ -51,7 +51,7 @@ A `package.json` is required only for [local](../usage/installation.md#local-ins
 ```json
 {
   "devDependencies": {
-    "semantic-release": "^12.0.0"
+    "semantic-release": "^15.0.0"
   }
 }
 ```

docs/recipes/travis-build-stages.md

@@ -48,7 +48,7 @@ A `package.json` is required only for [local](../usage/installation.md#local-ins
 ```json
 {
   "devDependencies": {
-    "semantic-release": "^12.0.0"
+    "semantic-release": "^15.0.0"
   }
 }
 ```

docs/recipes/travis.md

@@ -83,8 +83,8 @@ A `package.json` is required only for [local](../usage/installation.md#local-ins
 ```json
 {
   "devDependencies": {
-    "semantic-release": "^12.0.0",
-    "travis-deploy-once": "^4.0.0"
+    "semantic-release": "^15.0.0",
+    "travis-deploy-once": "^5.0.0"
   }
 }
 ```

docs/usage/installation.md

@@ -24,6 +24,6 @@ For other type of projects we recommend installing **semantic-release** directly
 $ npx semantic-release
 ```
 
-**Note:** For a global installation, it's recommended to specify the major **semantic-release** version to install (for example with with `npx semantic-release@12`, or `npm install -g semantic-release@12`). This way your build will not automatically use the next major **semantic-release** release that could possibly break your build. You will have to upgrade manually when a new major version is released.
+**Note:** For a global installation, it's recommended to specify the major **semantic-release** version to install (for example with with `npx semantic-release@15`, or `npm install -g semantic-release@15`). This way your build will not automatically use the next major **semantic-release** release that could possibly break your build. You will have to upgrade manually when a new major version is released.
 
-**Note:** `npx` is a tool bundled with `npm@>=5.2.0`. It is used to conveniently install the semantic-release binary and to execute it. See [What is npx](../support/FAQ.md#what-is-npx) for more details.
+**Note:** `npx` is a tool bundled with `npm@>=5.2.0`. It is used to conveniently install the semantic-release binary and to execute it. See [What is npx](../support/FAQ.md#what-is-npx) for more details.

lib/git.js

@@ -54,7 +54,11 @@ async function isRefInHistory(ref) {
  * @param {String} repositoryUrl The remote repository URL.
  */
 async function unshallow(repositoryUrl) {
-  await execa('git', ['fetch', '--unshallow', '--tags', repositoryUrl], {reject: false});
+  try {
+    await execa('git', ['fetch', '--unshallow', '--tags', repositoryUrl]);
+  } catch (err) {
+    debug(err);
+  }
 }
 
 /**

package.json

@@ -44,7 +44,7 @@
     "read-pkg-up": "^4.0.0",
     "resolve-from": "^4.0.0",
     "semver": "^5.4.1",
-    "yargs": "^11.0.0"
+    "yargs": "^12.0.0"
   },
   "devDependencies": {
     "ava": "^0.25.0",