refactor(commits,type): simplify interfaces

src/lib/commits.js

@@ -1,7 +1,7 @@
 const { exec } = require('child_process')
 
-module.exports = function (results, cb) {
-  const from = results.lastRelease.gitHead
+module.exports = function (lastRelease, cb) {
+  const from = lastRelease.gitHead
   const range = (from ? from + '..' : '') + 'HEAD'
 
   exec(

src/lib/type.js

@@ -1,9 +1,6 @@
 const SemanticReleaseError = require('./error')
 
-module.exports = function (plugins, results, cb) {
-  const commits = results.commits
-  const lastRelease = results.lastRelease
-
+module.exports = function (plugins, commits, lastRelease, cb) {
   const type = plugins.analyze(commits)
 
   if (!type) {

test/specs/commits.js

@@ -7,7 +7,7 @@ const commits = proxyquire('../../dist/lib/commits', {
 
 test('commits since last release', (t) => {
   t.test('get all commits', (t) => {
-    commits({lastRelease: {}}, (err, commits) => {
+    commits({}, (err, commits) => {
       t.error(err)
       t.is(commits.length, 2, 'all commits')
       t.is(commits[0].hash, 'hash-one', 'parsed hash')
@@ -16,7 +16,7 @@ test('commits since last release', (t) => {
   })
 
   t.test('get commits since hash', (t) => {
-    commits({lastRelease: {gitHead: 'hash'}}, (err, commits) => {
+    commits({gitHead: 'hash'}, (err, commits) => {
       t.error(err)
       t.is(commits.length, 1, 'specified commits')
       t.is(commits[0].hash, 'hash-one', 'parsed hash')

test/specs/type.js

@@ -6,14 +6,11 @@ test('get type from commits', (t) => {
   t.test('get type from plugin', (t) => {
     type({
       analyze: () => 'major'
-    }, {
-      commits: [{
-        hash: '0',
-        message: 'a'
-      }],
-      lastRelease: {
-        version: '1.0.0'
-      }
+    }, [{
+      hash: '0',
+      message: 'a'
+    }], {
+      version: '1.0.0'
     }, (err, type) => {
       t.error(err)
       t.is(type, 'major')
@@ -23,20 +20,17 @@ test('get type from commits', (t) => {
   t.test('error when no changes', (t) => {
     type({
       analyze: () => null
-    }, {
-      commits: [],
-      lastRelease: {}
-    }, (err) => {
+    }, [], {},
+    (err) => {
       t.is(err.code, 'ENOCHANGE')
     })
   })
 
   t.test('initial version', (t) => {
-    type({}, {
-      lastRelease: {
-        version: null
-      }
-    }, (err, type) => {
+    type({
+      analyze: () => 'major'
+    }, [], {},
+    (err, type) => {
       t.error(err)
       t.is(type, 'initial')
     })