chore(cicd): package action should be triggered on PR push (#485)

* fix package action

* update

* avoid endless loop hell

* push commit only on dependabot pr

* .

* ..

* change job name back

* blah

* to PR not to master

Author: Lou1415926

.github/workflows/package.yml

@@ -1,27 +1,39 @@
+name: Package
+
+# When a pull request is opened/reopened or when the head branch of the pull request is updated.
 on:
-  push:
-    branches:
-      - master
+  pull_request:
 
-name: Package
 
 jobs:
-  check:
+  build:
+    if: github.event.commits[0].author.name != 'GitHub Actions'
     name: Package distribution file
     runs-on: ubuntu-latest
     steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-      with:
-        ref: master
-    - name: Package
-      run: |
-        npm ci
-        npm test
-        npm run package
-    - name: Commit
-      run: |
-        git config --global user.name "GitHub Actions"
-        git add dist/
-        git commit -m "chore: Update dist" || echo "No changes to commit"
-        git push origin HEAD:master
+      - name: Init a git repo
+        uses: actions/checkout@v2
+      - name: Checkout PR
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: gh pr checkout ${{ github.event.pull_request.number }}
+      - name: Package
+        run: |
+          npm ci
+          npm test
+          npm run package
+      - name: Commit to PR
+        if: github.actor == 'dependabot[bot]'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          git config --global user.name "GitHub Actions"
+          git add dist/
+          git commit -m "chore: Update dist" || echo "No changes to commit"
+          git push 
+      - name: Check git diff
+        if: github.actor != 'dependabot[bot]'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          git diff --exit-code dist/index.js