Add publish npm package workflow

.github/workflows/publish.yml

@@ -0,0 +1,38 @@
+name: Publish to npm
+
+on:
+  workflow_run:
+    workflows: ["Main"]
+    types:
+      - completed
+    branches: [ "main" ]
+
+jobs:
+  publish:
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          registry-url: 'https://registry.npmjs.org/'
+      - uses: oven-sh/setup-bun@v1
+      - run: bun install
+      - name: update changelog
+        run: |
+          if bun run update-changelog; then
+            echo "changelog updated"
+          else
+            echo "skipping publish because no changes were detected"
+            exit 1
+          fi
+      - name: Publish to npm
+        run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+      - name: Push tags
+        run: |
+          git config --local user.name "github-actions"
+          git config --local user.email "[email protected]"
+          git push origin main --tags

changelog-updater.js

@@ -8,7 +8,11 @@ const version = await $`bunx changelog --latest-release`.text();
 const packageVersion = await $`npm info vite-plugin-fable version`.text();
 
 if (version === packageVersion) {
-  process.exit(0);
+  console.log("version is already up to date, do not publish");
+  process.exit(1);
 }
 
-await $`npm version ${version.trim()}`;
+await $`npm version ${version.trim()}`;
+
+console.log(`Updated package.json version to ${version.trim()}`);
+console.log(`Run 'git push origin main --tags' after publishing to push the new version tag.`);

package.json

@@ -10,7 +10,8 @@
     "format": "bunx --bun prettier ./package.json ./index.js ./types.d.ts ./sample-project/vite.config.js ./docs/*.md ./docs/content/*.css ./docs/scripts/*.js ./docs/*.html ./.devcontainer/devcontainer.json --write && dotnet fantomas .",
     "postinstall": "dotnet publish Fable.Daemon/Fable.Daemon.fsproj --nologo -c Release --ucr -p:PublishReadyToRun=true -o ./bin",
     "lint": "bunx tsc",
-    "prepublishOnly": "bun changelog-updater.js"
+    "update-changelog": "bun changelog-updater.js",
+    "manualPublish": "bun run update-changelog && npm publish"
   },
   "files": [
     "index.js",