bundle dependencies

.github/workflows/dry-run-action.yml → .github/workflows/ci.yml

@@ -6,6 +6,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - name: Setup Node.js
+        id: setup-node
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: package.json
+          cache: yarn
       - name: Test Local Action
         id: test-action
         uses: ./

action.yml

@@ -60,7 +60,7 @@ outputs:
     description: 'The list of PRs numbers that have merge conflicts (comma-separated list)'
 runs:
   using: 'node20'
-  main: 'lib/action.js'
+  main: 'lib/action.mjs'
 branding:
   color: 'purple'
   icon: 'git-merge'

build.js

@@ -0,0 +1,22 @@
+import { build } from 'esbuild';
+
+await build({
+  entryPoints: ['src/action.ts'],
+  format: 'esm',
+  bundle: true,
+  treeShaking: true,
+  platform: 'node',
+  minify: true,
+  banner: {
+    js: `
+import { createRequire } from 'node:module';
+import path from 'node:path';
+import url from 'node:url';
+
+const require = createRequire(import.meta.url);
+const __filename = url.fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+    `,
+  },
+  outfile: 'lib/action.mjs',
+});