Build/Test Tools: Expand Slack notifications for GitHub Actions.

This expands Slack notifications to include success, cancelled, and “fixed” GitHub Action workflow run outcomes in addition to failures.

A “fixed” outcome occurs when the previous run for a workflow failed and the current one succeeds. This matches the behavior that was native to TravisCI by setting `on_success` for notifications to `change`.

The message details and where each outcome is posted is controlled by Slack workflows.

The Slack notification logic has also been pulled into a separate workflow to prevent repeating code in every workflow.

See #52644.

git-svn-id: https://develop.svn.wordpress.org/trunk@51535 602fd350-edb4-49c9-b593-d223f7449a82

.github/workflows/coding-standards.yml

@@ -146,22 +146,3 @@ jobs:
 
       - name: Ensure version-controlled files are not modified or deleted
         run: git diff --exit-code
-
-  # Post workflow related status updates to Slack.
-  #
-  # When a job in this workflow fails, a message is posted to #core.
-  #
-  # This job should always require all other jobs in this workflow to complete before running.
-  slack-notifications:
-    name: Slack Notifications
-    runs-on: ubuntu-latest
-    needs: [ phpcs, jshint ]
-    if: ${{ failure() && github.repository == 'WordPress/wordpress-develop' && github.event_name != 'pull_request' }}
-
-    steps:
-      - name: Post failure notification to Slack
-        uses: slackapi/slack-github-action@d5d276d7ae0f38f29322b80da9baf985cc80f8b1 # v1.15.0
-        with:
-          payload: "{\"workflow_name\":\"${{ github.workflow }}\",\"run_url\":\"https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}\"}"
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_GHA_WEBHOOK_URL }}

.github/workflows/end-to-end-tests.yml

@@ -116,22 +116,3 @@ jobs:
 
       - name: Ensure version-controlled files are not modified or deleted
         run: git diff --exit-code
-
-  # Post workflow related status updates to Slack.
-  #
-  # When a job in this workflow fails, a message is posted to #core.
-  #
-  # This job should always require all other jobs in this workflow to complete before running.
-  slack-notifications:
-    name: Slack Notifications
-    runs-on: ubuntu-latest
-    needs: [ e2e-tests ]
-    if: ${{ failure() && github.repository == 'WordPress/wordpress-develop' && github.event_name != 'pull_request' }}
-
-    steps:
-      - name: Post failure notification to Slack
-        uses: slackapi/slack-github-action@d5d276d7ae0f38f29322b80da9baf985cc80f8b1 # v1.15.0
-        with:
-          payload: "{\"workflow_name\":\"${{ github.workflow }}\",\"run_url\":\"https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}\"}"
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_GHA_WEBHOOK_URL }}

.github/workflows/javascript-tests.yml

@@ -85,22 +85,3 @@ jobs:
 
       - name: Ensure version-controlled files are not modified or deleted
         run: git diff --exit-code
-
-  # Post workflow related status updates to Slack.
-  #
-  # When a job in this workflow fails, a message is posted to #core.
-  #
-  # This job should always require all other jobs in this workflow to complete before running.
-  slack-notifications:
-    name: Slack Notifications
-    runs-on: ubuntu-latest
-    needs: [ test-js ]
-    if: ${{ failure() && github.repository == 'WordPress/wordpress-develop' && github.event_name != 'pull_request' }}
-
-    steps:
-      - name: Post failure notification to Slack
-        uses: slackapi/slack-github-action@d5d276d7ae0f38f29322b80da9baf985cc80f8b1 # v1.15.0
-        with:
-          payload: "{\"workflow_name\":\"${{ github.workflow }}\",\"run_url\":\"https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}\"}"
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_GHA_WEBHOOK_URL }}

.github/workflows/php-compatibility.yml

@@ -87,22 +87,3 @@ jobs:
 
       - name: Ensure version-controlled files are not modified or deleted
         run: git diff --exit-code
-
-  # Post workflow related status updates to Slack.
-  #
-  # When a job in this workflow fails, a message is posted to #core.
-  #
-  # This job should always require all other jobs in this workflow to complete before running.
-  slack-notifications:
-    name: Slack Notifications
-    runs-on: ubuntu-latest
-    needs: [ php-compatibility ]
-    if: ${{ failure() && github.repository == 'WordPress/wordpress-develop' && github.event_name != 'pull_request' }}
-
-    steps:
-      - name: Post failure notification to Slack
-        uses: slackapi/slack-github-action@d5d276d7ae0f38f29322b80da9baf985cc80f8b1 # v1.15.0
-        with:
-          payload: "{\"workflow_name\":\"${{ github.workflow }}\",\"run_url\":\"https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}\"}"
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_GHA_WEBHOOK_URL }}

.github/workflows/phpunit-tests.yml

@@ -236,22 +236,3 @@ jobs:
         env:
           WPT_REPORT_API_KEY: "${{ secrets.WPT_REPORT_API_KEY }}"
         run: docker-compose run --rm -e WPT_REPORT_API_KEY -e WPT_PREPARE_DIR=/var/www -e WPT_TEST_DIR=/var/www php php test-runner/report.php
-
-  # Post workflow related status updates to Slack.
-  #
-  # When a job in this workflow fails, a message is posted to #core.
-  #
-  # This job should always require all other jobs in this workflow to complete before running.
-  slack-notifications:
-    name: Slack Notifications
-    runs-on: ubuntu-latest
-    needs: [ test-php ]
-    if: ${{ failure() && github.repository == 'WordPress/wordpress-develop' && github.event_name != 'pull_request' }}
-
-    steps:
-      - name: Post failure notification to Slack
-        uses: slackapi/slack-github-action@d5d276d7ae0f38f29322b80da9baf985cc80f8b1 # v1.15.0
-        with:
-          payload: "{\"workflow_name\":\"${{ github.workflow }}\",\"run_url\":\"https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}\"}"
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_GHA_WEBHOOK_URL }}

.github/workflows/slack-notifications.yml

@@ -0,0 +1,121 @@
+##
+# Posts messages to the Making WordPress Core Slack Instance by
+# submitting data to Slack webhook URLs received by Slack Workflows.
+##
+name: Slack Notifications
+
+on:
+  workflow_run:
+    workflows:
+      - Code Coverage Report
+      - Coding Standards
+      - End-to-end Tests
+      - JavaScript Tests
+      - PHP Compatibility
+      - PHPUnit Tests
+      - Test NPM
+      - Test old branches
+    types:
+      - completed
+
+jobs:
+  # Gathers the details needed for Slack notifications.
+  #
+  # These details are passed as outputs to the subsequent, dependant jobs that
+  # submit data to Slack webhook URLs configured to post messages.
+  #
+  # Performs the following steps:
+  # - Retrieves the previous workflow run and stores its conclusion.
+  # - Sets the previous conclusion as an output.
+  # - Constructs and stores a message payload as an output.
+  prepare:
+    name: Prepare notifications
+    runs-on: ubuntu-latest
+    if: ${{ github.repository == 'WordPress/wordpress-develop' && github.event.workflow_run.conclusion != 'skipped' && github.event_name != 'pull_request' }}
+    outputs:
+      previous_conclusion: ${{ steps.previous-conclusion.outputs.previous_conclusion }}
+      payload: ${{ steps.create-payload.outputs.payload }}
+
+    steps:
+      - name: Get details about the workflow
+        id: previous-result
+        uses: actions/github-script@a3e7071a34d7e1f219a8a4de9a5e0a34d1ee1293 # v4.0.2
+        with:
+          script: |
+            const workflow_runs = await github.actions.listWorkflowRuns({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              workflow_id: ${{ github.event.workflow_run.workflow_id }},
+              branch: '${{ github.event.workflow_run.head_branch }}',
+              per_page: 1,
+              page: 2,
+            });
+            return workflow_runs.data.workflow_runs[0].conclusion;
+
+      - name: Store previous conclusion as an output
+        id: previous-conclusion
+        run: echo "::set-output name=previous_conclusion::${{ steps.previous-result.outputs.result }}"
+
+      - name: Construct payload and store as an output
+        id: create-payload
+        run: echo "::set-output name=payload::\"{\"workflow_name\":\"${{ github.event.workflow_run.name }}\",\"ref_name\":\"${{ github.event.workflow_run.head_branch }}\",\"run_url\":\"${{ github.event.workflow_run.html_url }}\"}\""
+
+  # Posts notifications when a workflow fails.
+  failure:
+    name: Failure notifications
+    runs-on: ubuntu-latest
+    needs: [ prepare ]
+    if: ${{ github.event.workflow_run.conclusion == 'failure' }}
+
+    steps:
+      - name: Post failure notifications to Slack
+        uses: slackapi/slack-github-action@d5d276d7ae0f38f29322b80da9baf985cc80f8b1 # v1.15.0
+        with:
+          payload: ${{ needs.prepare.outputs.payload }}
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_GHA_FAILURE_WEBHOOK }}
+
+  # Posts notifications the first time a workflow run succeeds after previously failing.
+  fixed:
+    name: Fixed notifications
+    runs-on: ubuntu-latest
+    needs: [ prepare ]
+    if: ${{ needs.prepare.outputs.previous_conclusion == 'failure' && github.event.workflow_run.conclusion == 'success' }}
+
+    steps:
+      - name: Post failure notifications to Slack
+        uses: slackapi/slack-github-action@d5d276d7ae0f38f29322b80da9baf985cc80f8b1 # v1.15.0
+        with:
+          payload: ${{ needs.prepare.outputs.payload }}
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_GHA_FIXED_WEBHOOK }}
+
+  # Posts notifications when a workflow is successful.
+  success:
+    name: Success notifications
+    runs-on: ubuntu-latest
+    needs: [ prepare ]
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+
+    steps:
+      - name: Post success notifications to Slack
+        uses: slackapi/slack-github-action@d5d276d7ae0f38f29322b80da9baf985cc80f8b1 # v1.15.0
+        with:
+          payload: ${{ needs.prepare.outputs.payload }}
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_GHA_SUCCESS_WEBHOOK }}
+
+  # Posts notifications when a workflow is cancelled.
+  cancelled:
+    name: Cancelled notifications
+    runs-on: ubuntu-latest
+    needs: [ prepare ]
+    if: ${{ github.event.workflow_run.conclusion == 'cancelled' }}
+
+    steps:
+      - name: Post cancelled notifications to Slack
+        uses: slackapi/slack-github-action@d5d276d7ae0f38f29322b80da9baf985cc80f8b1 # v1.15.0
+        with:
+          payload: ${{ needs.prepare.outputs.payload }}
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_GHA_CANCELLED_WEBHOOK }}

.github/workflows/test-coverage.yml

@@ -146,22 +146,3 @@ jobs:
         with:
           file: wp-code-coverage-multisite-clover-${{ github.sha }}.xml
           flags: multisite,php
-
-  # Post workflow related status updates to Slack.
-  #
-  # When a job in this workflow fails, a message is posted to #core.
-  #
-  # This job should always require all other jobs in this workflow to complete before running.
-  slack-notifications:
-    name: Slack Notifications
-    runs-on: ubuntu-latest
-    needs: [ test-coverage-report ]
-    if: ${{ failure() && github.repository == 'WordPress/wordpress-develop' && github.event_name != 'pull_request' }}
-
-    steps:
-      - name: Post failure notification to Slack
-        uses: slackapi/slack-github-action@d5d276d7ae0f38f29322b80da9baf985cc80f8b1 # v1.15.0
-        with:
-          payload: "{\"workflow_name\":\"${{ github.workflow }}\",\"run_url\":\"https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}\"}"
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_GHA_WEBHOOK_URL }}

.github/workflows/test-npm.yml

@@ -154,22 +154,3 @@ jobs:
 
       - name: Ensure version-controlled files are not modified or deleted during building and cleaning
         run: git diff --exit-code
-
-  # Post workflow related status updates to Slack.
-  #
-  # When a job in this workflow fails, a message is posted to #core.
-  #
-  # This job should always require all other jobs in this workflow to complete before running.
-  slack-notifications:
-    name: Slack Notifications
-    runs-on: ubuntu-latest
-    needs: [ test-npm, test-npm-macos ]
-    if: ${{ failure() && github.repository == 'WordPress/wordpress-develop' && github.event_name != 'pull_request' }}
-
-    steps:
-      - name: Post failure notification to Slack
-        uses: slackapi/slack-github-action@d5d276d7ae0f38f29322b80da9baf985cc80f8b1 # v1.15.0
-        with:
-          payload: "{\"workflow_name\":\"${{ github.workflow }}\",\"run_url\":\"https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}\"}"
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_GHA_WEBHOOK_URL }}

.github/workflows/test-old-branches.yml

@@ -69,22 +69,3 @@ jobs:
               workflow_id: '${{ matrix.workflow }}',
               ref: '${{ matrix.branch }}'
             });
-
-  # Post workflow related status updates to Slack.
-  #
-  # When a job in this workflow fails, a message is posted to #core.
-  #
-  # This job should always require all other jobs in this workflow to complete before running.
-  slack-notifications:
-    name: Slack Notifications
-    runs-on: ubuntu-latest
-    needs: [ dispatch-workflows-for-old-branches ]
-    if: ${{ failure() }}
-
-    steps:
-      - name: Post failure notification to Slack
-        uses: slackapi/slack-github-action@d5d276d7ae0f38f29322b80da9baf985cc80f8b1 # v1.15.0
-        with:
-          payload: "{\"workflow_name\":\"${{ github.workflow }}\",\"run_url\":\"https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}\"}"
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_GHA_WEBHOOK_URL }}

.github/workflows/welcome-new-contributors.yml

@@ -57,22 +57,3 @@ jobs:
             Thank you,
 
             The WordPress Project
-
-  # Post workflow related status updates to Slack.
-  #
-  # When a job in this workflow fails, a message is posted to #core.
-  #
-  # This job should always require all other jobs in this workflow to complete before running.
-  slack-notifications:
-    name: Slack Notifications
-    runs-on: ubuntu-latest
-    needs: [ post-welcome-message ]
-    if: ${{ failure() }}
-
-    steps:
-      - name: Post failure notification to Slack
-        uses: slackapi/slack-github-action@d5d276d7ae0f38f29322b80da9baf985cc80f8b1 # v1.15.0
-        with:
-          payload: "{\"workflow_name\":\"${{ github.workflow }}\",\"run_url\":\"https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}\"}"
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_GHA_WEBHOOK_URL }}