chore: automate tag on release (#8366)

.github/workflows/publish-on-tag.yml

@@ -8,7 +8,8 @@ on:
 jobs:
   publish:
     runs-on: ubuntu-latest
-    permissions: read-all
+    permissions:
+      contents: read
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -40,8 +41,7 @@ jobs:
     needs: publish
     runs-on: ubuntu-latest
     permissions:
-      actions: read|write
-      contents: read|write
+      contents: write
     steps:
       - name: Checkout
         uses: actions/checkout@v3

.github/workflows/release.yml

@@ -6,7 +6,7 @@ jobs:
   release:
     runs-on: ubuntu-latest
     permissions:
-      contents: read|write
+      contents: write
       pull-requests: write
     steps:
       - name: Checkout

.github/workflows/tag-on-release.yml

@@ -0,0 +1,30 @@
+name: tag-on-release
+
+on:
+  pull_request:
+    types:
+      - closed
+    branches:
+      - 'releases/**'
+
+jobs:
+  tag:
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Get version
+        id: get-version
+        run: |
+          echo ::set-output name=VERSION::$(jq -r .version ./package.json)
+      - name: Generate latest changelog
+        run: node utils/get_latest_changelog.js > ${{ steps.get-version.outputs.VERSION }}-CHANGELOG.txt
+      - name: Tag and release
+        uses: softprops/action-gh-release@v1
+        with:
+          name: ${{ steps.get-version.outputs.VERSION }}
+          tag_name: v${{ steps.get-version.outputs.VERSION }}
+          body_path: ${{ steps.get-version.outputs.VERSION }}-CHANGELOG.txt

utils/get_latest_changelog.js

@@ -0,0 +1,34 @@
+#!/usr/bin/env node
+
+(async () => {
+  const { createReadStream } = require('fs');
+  const { join } = require('path');
+  const { createInterface } = require('readline');
+
+  const lines = [];
+  let isRecording = false;
+
+  for await (const line of createInterface({
+    input: createReadStream(join(__dirname, '../CHANGELOG.md'), {
+      encoding: 'utf-8',
+    }),
+  })) {
+    if (line.startsWith('## ')) {
+      if (!isRecording) {
+        isRecording = true;
+        continue;
+      } else {
+        break;
+      }
+    }
+    if (isRecording) {
+      lines.push(line);
+    }
+  }
+
+  if (lines.length === 0) {
+    throw new Error('Latest changelog should be non-empty.');
+  }
+
+  console.log(lines.join('\n').trim());
+})();