Update spotless automation (open-telemetry#13963)

Author: trask

.github/workflows/auto-update-pull-request.yml

@@ -43,31 +43,10 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         if: steps.unzip-patch.outputs.exists == 'true'
         with:
+          repository: "${{ github.event.workflow_run.head_repository.full_name }}"
+          ref: "${{ github.event.workflow_run.head_branch }}"
           token: ${{ steps.otelbot-token.outputs.token }}
 
-      - id: get-pr
-        if: steps.unzip-patch.outputs.exists == 'true'
-        name: Get PR
-        env:
-          PR_BRANCH: |-
-            ${{
-              (github.event.workflow_run.head_repository.owner.login != github.event.workflow_run.repository.owner.login)
-                && format('{0}:{1}', github.event.workflow_run.head_repository.owner.login, github.event.workflow_run.head_branch)
-                || github.event.workflow_run.head_branch
-            }}
-          GH_TOKEN: ${{ github.token }}
-        run: |
-          echo gh pr view "${PR_BRANCH}" --json number --jq .number
-          number=$(gh pr view "${PR_BRANCH}" --json number --jq .number)
-          echo $number
-          echo "number=$number" >> $GITHUB_OUTPUT
-
-      - name: Check out PR branch
-        if: steps.unzip-patch.outputs.exists == 'true'
-        env:
-          GH_TOKEN: ${{ github.token }}
-        run: gh pr checkout ${{ steps.get-pr.outputs.number }}
-
       - name: Use CLA approved github bot
         if: steps.unzip-patch.outputs.exists == 'true'
         # IMPORTANT do not call the .github/scripts/use-cla-approved-bot.sh
@@ -83,14 +62,34 @@ jobs:
           git commit -a -m "./gradlew spotlessApply"
           git push
 
+      - id: get-pr
+        if: steps.unzip-patch.outputs.exists == 'true'
+        name: Get PR
+        env:
+          GH_REPO: ${{ github.repository }}
+          GH_TOKEN: ${{ github.token }}
+          PR_BRANCH: |-
+            ${{
+              (github.event.workflow_run.head_repository.owner.login != github.event.workflow_run.repository.owner.login)
+                && format('{0}:{1}', github.event.workflow_run.head_repository.owner.login, github.event.workflow_run.head_branch)
+                || github.event.workflow_run.head_branch
+            }}
+        run: |
+          number=$(gh pr view "$PR_BRANCH" --json number --jq .number)
+          echo "number=$number" >> $GITHUB_OUTPUT
+
       - if: steps.unzip-patch.outputs.exists == 'true' && success()
         env:
+          GH_REPO: ${{ github.repository }}
           GH_TOKEN: ${{ steps.otelbot-token.outputs.token }}
+          PR_NUMBER: ${{ steps.get-pr.outputs.number }}
         run: |
-          gh pr comment ${{ steps.get-pr.outputs.number }} --body "🔧 The result from spotlessApply was committed to the PR branch."
+          gh pr comment $PR_NUMBER --body "🔧 The result from spotlessApply was committed to the PR branch."
 
       - if: steps.unzip-patch.outputs.exists == 'true' && failure()
         env:
+          GH_REPO: ${{ github.repository }}
           GH_TOKEN: ${{ steps.otelbot-token.outputs.token }}
+          PR_NUMBER: ${{ steps.get-pr.outputs.number }}
         run: |
-          gh pr comment ${{ steps.get-pr.outputs.number }} --body "❌ The result from spotlessApply could not be committed to the PR branch, see logs: $GITHUB_SERVER_URL/$GITHUB_REPOSITORY/actions/runs/$GITHUB_RUN_ID."
+          gh pr comment $PR_NUMBER --body "❌ The result from spotlessApply could not be committed to the PR branch, see logs: $GITHUB_SERVER_URL/$GITHUB_REPOSITORY/actions/runs/$GITHUB_RUN_ID."

.github/workflows/create-dummy-pr.yml

@@ -0,0 +1,42 @@
+name: Create a dummy PR
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  create:
+    permissions:
+      contents: write
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+
+      - name: Need to make some kind of change, and this workflow will no longer be needed after running it the one time, so...
+        run: git rm .github/workflows/create-dummy-pr.yml
+
+      - name: Use CLA approved bot
+        run: .github/scripts/use-cla-approved-bot.sh
+
+      - uses: actions/create-github-app-token@df432ceedc7162793a195dd1713ff69aefc7379e # v2.0.6
+        id: otelbot-token
+        with:
+          app-id: 1295839
+          private-key: ${{ secrets.OTELBOT_JAVA_INSTRUMENTATION_PRIVATE_KEY }}
+
+      - name: Create pull request against the release branch
+        env:
+          GH_TOKEN: ${{ steps.otelbot-token.outputs.token }}
+        run: |
+          message="A dummy PR to give otelbot-java-instrumentation one merged PR under its belt"
+          branch="otelbot/dummy-pr"
+
+          git checkout -b $branch
+          git commit -a -m "$message"
+          git push --set-upstream origin $branch
+          gh pr create --title "$message" \
+                       --body "$message." \
+                       --base main