feat: Added outputs

.github/workflows/release.yml

@@ -8,11 +8,23 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - name: Checkout code
+        uses: actions/checkout@v2
 
       - run: yarn --production
       - run: git add node_modules -f
 
-      - uses: ./
+      - name: Generate changelog
+        id: changelog
+        uses: ./
         with:
           github-token: ${{ secrets.github_token }}
+
+      - name: Create Release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.github_token }}
+        with:
+          tag_name: ${{ steps.changelog.outputs.tag }}
+          release_name: ${{ steps.changelog.outputs.tag }}
+          body: ${{ steps.changelog.outputs.changelog }}

action.yml

@@ -43,3 +43,11 @@ inputs:
     description: 'The path to the package.json to use'
     default: './package.json'
     required: false
+
+outputs:
+  changelog:
+    description: 'The generated changelog for the new version'
+  version:
+    description: 'The new version'
+  tag:
+    description: 'The name of the generated tag'

src/helpers/generateChangelog.js

@@ -1,11 +1,32 @@
 const fs = require('fs')
 const conventionalChangelog = require('conventional-changelog')
 
-module.exports = (tagPrefix, preset, jsonPackage, fileName, releaseCount) => new Promise((resolve) => {
+module.exports.generateStringChangelog = (tagPrefix, preset, jsonPackage, releaseCount) => new Promise((resolve, reject) => {
   const changelogStream = conventionalChangelog({
       preset,
       releaseCount: parseInt(releaseCount, 10),
-      tagPrefix
+      tagPrefix,
+    },
+    {
+      version: jsonPackage.version,
+      currentTag: `${tagPrefix}${jsonPackage.version}`,
+    },
+  )
+
+  let changelog = ''
+
+  changelogStream
+    .on('data', (data) => {
+      changelog += data.toString()
+    })
+    .on('end', () => resolve(changelog))
+})
+
+module.exports.generateFileChangelog = (tagPrefix, preset, jsonPackage, fileName, releaseCount) => new Promise((resolve) => {
+  const changelogStream = conventionalChangelog({
+      preset,
+      releaseCount: parseInt(releaseCount, 10),
+      tagPrefix,
     },
     {
       version: jsonPackage.version,

src/index.js

@@ -3,7 +3,7 @@ const conventionalRecommendedBump = require('conventional-recommended-bump')
 
 const git = require('./helpers/git')
 const packageJson = require('./helpers/packageJson')
-const generateChangelog = require('./helpers/generateChangelog')
+const changelog = require('./helpers/generateChangelog')
 
 async function run() {
   try {
@@ -42,8 +42,15 @@ async function run() {
 
         core.info(`New version: ${jsonPackage.version}`)
 
+        // If output file === 'false' we don't write it to file
+        if (outputFile !== 'false') {
           // Generate the changelog
-        await generateChangelog(tagPrefix, preset, jsonPackage, outputFile, releaseCount)
+          await changelog.generateFileChangelog(tagPrefix, preset, jsonPackage, outputFile, releaseCount)
+        }
+
+        const stringChangelog = await changelog.generateStringChangelog(tagPrefix, preset, jsonPackage, 1)
+        core.info('Changelog generated')
+        core.info(stringChangelog)
 
         core.info('Push all changes')
 
@@ -52,6 +59,11 @@ async function run() {
         await git.commit(commitMessage.replace('{version}', `${tagPrefix}${jsonPackage.version}`))
         await git.createTag(`${tagPrefix}${jsonPackage.version}`)
         await git.push()
+
+        // Set outputs so other actions (for example actions/create-release) can use it
+        core.setOutput('changelog', stringChangelog)
+        core.setOutput('version', jsonPackage.version)
+        core.setOutput('tag', `${tagPrefix}${jsonPackage.version}`)
       }
     })