ci: Add generation of changelog (#367)

.github/workflows/changelog.yml

@@ -0,0 +1,35 @@
+name: CI
+on: workflow_call
+permissions: {}
+jobs:
+  generateChangelog:
+    name: Generate changelog
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read # for actions/checkout
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v3
+        with:
+          persist-credentials: false
+          fetch-depth: 0 # fetch all history
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          cache: npm
+          node-version-file: '.node-version'
+
+      - name: Install Dependencies
+        run: npm ci --ignore-scripts
+
+      - name: Generate changelog
+        run: npm run changelog > changelog.txt
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload npm folder
+        uses: actions/upload-artifact@v3
+        with:
+          name: changelog
+          path: ./changelog.txt

.github/workflows/publish.yml

@@ -11,11 +11,18 @@ jobs:
       security-events: write # for codeql-action
     uses: ./.github/workflows/ci.yml
 
+  changelog:
+    permissions:
+      contents: read # for actions/checkout
+    uses: ./.github/workflows/changelog.yml
+
   npm-publish:
     environment:
       name: npm-publish
       url: https://www.npmjs.com/package/graphql-voyager/v/${{github.ref_name}}
-    needs: ci
+    needs:
+      - ci
+      - changelog
     permissions:
       contents: read # for actions/checkout
     runs-on: ubuntu-latest

.github/workflows/push.yml

@@ -8,6 +8,11 @@ jobs:
       security-events: write # for codeql-action
     uses: ./.github/workflows/ci.yml
 
+  changelog:
+    permissions:
+      contents: read # for actions/checkout
+    uses: ./.github/workflows/changelog.yml
+
   deploy-to-gh-pages:
     name: Deploy to GitHub Pages
     needs: ci

scripts/gen-changelog.ts

@@ -31,10 +31,10 @@ const labelsConfig: { [label: string]: { section: string; fold?: boolean } } = {
     fold: true,
   },
 };
-const { GH_TOKEN } = process.env;
+const { GITHUB_TOKEN } = process.env;
 
-if (GH_TOKEN == null) {
-  console.error('Must provide GH_TOKEN as environment variable!');
+if (GITHUB_TOKEN == null) {
+  console.error('Must provide GITHUB_TOKEN as environment variable!');
   process.exit(1);
 }
 
@@ -55,7 +55,10 @@ const { githubOrg, githubRepo } = repoURLMatch.groups;
 
 genChangeLog()
   .then((result) => process.stdout.write(result))
-  .catch((e) => console.error(e));
+  .catch((e) => {
+    console.error(e);
+    process.exit(1);
+  });
 
 async function genChangeLog(): Promise<string> {
   const { version } = packageJSON;
@@ -136,7 +139,7 @@ async function graphqlRequest(query: string) {
   const response = await fetch('https://api.github.com/graphql', {
     method: 'POST',
     headers: {
-      Authorization: 'bearer ' + GH_TOKEN,
+      Authorization: 'bearer ' + GITHUB_TOKEN,
       'Content-Type': 'application/json',
       'User-Agent': 'gen-changelog',
     },