chore: fix creating release message file (#1228)

.github/workflows/release.yaml

@@ -16,7 +16,6 @@ jobs:
     outputs:
       published: ${{ steps.changesets.outputs.published }}
       publishedPackages: ${{ steps.changesets.outputs.publishedPackages }}
-      releaseMessage: ${{ steps.changesets.outputs.releaseMessage }}
     steps:
       - name: Checkout Repo
         uses: actions/checkout@v3
@@ -42,8 +41,6 @@ jobs:
             npx changeset version
             npm i
             node scripts/post-changeset.js
-            releaseMessage="$(cat output/release-message.txt)"
-            echo "releaseMessage=$releaseMessage" >> "$GITHUB_OUTPUT"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
@@ -184,11 +181,26 @@ jobs:
     name: Post the Release Message
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout Repo
+        uses: actions/checkout@v3
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 20
+          cache: 'npm'
+
+      - name: Install Dependencies
+        run: npm ci
+
+      - name: Write release message to file
+        run: node scripts/write-release-message.js
+
       - name: Post to a Slack channel
         id: slack
         uses: slackapi/slack-github-action@v1.23.0
         with:
           channel-id: C019K52TC0L #releases
-          slack-message: ${{ needs.release.outputs.releaseMessage }}
+          payload-file-path: './output/release-message.json'
         env:
           SLACK_BOT_TOKEN: ${{ secrets.RELEASES_SLACK_BOT_TOKEN }}

scripts/post-changeset.js

@@ -1,18 +1,10 @@
 const fs = require('fs');
-const slackifyMarkdown = require('slackify-markdown');
 
 const generatedLogsCli = fs.readFileSync('./packages/cli/CHANGELOG.md').toString();
 const [, logCli] = generatedLogsCli.split('\n## ', 2);
 const generatedLogsCore = fs.readFileSync('./packages/core/CHANGELOG.md').toString();
 const [, logCore] = generatedLogsCore.split('\n## ', 2);
 
-fs.writeFileSync(
-  './output/release-message.txt',
-  slackifyMarkdown(
-    `:bookmark: New @redocly/cli release ${logCli}\n\n:bookmark: New @redocly/openapi-core release ${logCore}\n\n`
-  )
-);
-
 const mainChangelog = fs.readFileSync('./docs/changelog.md').toString();
 const [date] = new Date().toISOString().split('T');
 const logWithDate = logCli.replace('\n', ` (${date})\n`);

scripts/write-release-message.js

@@ -0,0 +1,17 @@
+const fs = require('fs');
+const slackifyMarkdown = require('slackify-markdown');
+
+const generatedLogsCli = fs.readFileSync('./packages/cli/CHANGELOG.md').toString();
+const [, logCli] = generatedLogsCli.split('\n## ', 2);
+const generatedLogsCore = fs.readFileSync('./packages/core/CHANGELOG.md').toString();
+const [, logCore] = generatedLogsCore.split('\n## ', 2);
+
+fs.mkdirSync('./output', { recursive: true });
+fs.writeFileSync(
+  './output/release-message.json',
+  JSON.stringify({
+    text: slackifyMarkdown(
+      `:bookmark: New @redocly/cli release ${logCli}\n\n:bookmark: New @redocly/openapi-core release ${logCore}\n\n`
+    ),
+  })
+);