Add comments and rename exhaustive tests file

.github/workflows/exhaustive-tests.yml → .github/workflows/icu_exhaustive_tests.yml

@@ -1,3 +1,15 @@
+# Copyright (C) 2016 and later: Unicode, Inc. and others.
+# License & terms of use: http://www.unicode.org/copyright.html
+#
+# GitHub Actions configuration for Exhaustive Tests for ICU.
+# 
+# Note: The exhaustive test configuration is in a separate file
+# so that it can be run independently from the regular builds.
+#
+# To run these tests, comment on a PR with "run exhaustive tests" 
+# or manually trigger the workflow. If triggered from a PR comment,
+# it adds checks to the PR and updates them with the results.
+
 name: Exhaustive Tests for ICU
 
 on:
@@ -10,6 +22,8 @@ permissions:
   pull-requests: write
 
 jobs:
+
+  # Runs exhaustive tests for ICU4J on Linux
   icu4j-linux:
     if: github.event.issue.pull_request != null &&
         (contains(github.event_name, 'workflow_dispatch') ||
@@ -20,6 +34,7 @@ jobs:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       - name: Fetch PR Details
         id: pr-details
+        if: contains(github.event.comment.body, 'run exhaustive tests')
         run: |
           echo ${{ secrets.GITHUB_TOKEN }} | gh auth login --with-token
           gh api "${{ github.event.issue.pull_request.url }}" > pr.json
@@ -29,6 +44,7 @@ jobs:
           echo "SHA=$SHA" >> $GITHUB_ENV
       - name: Add a check to the PR
         id: add-check
+        if: contains(github.event.comment.body, 'run exhaustive tests')
         run: |
           WORKFLOW_URL="${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
           echo $WORKFLOW_URL
@@ -56,7 +72,7 @@ jobs:
           cd icu4j && cat `find . -name surefire-reports -type d -exec grep -l  -r --include="*.txt" FAILED {} \;`
         timeout-minutes: 2
       - name: Complete the check
-        if: always()
+        if: always() && contains(github.event.comment.body, 'run exhaustive tests')
         run: |
           WORKFLOW_URL="${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
           STATUS="completed"
@@ -75,14 +91,15 @@ jobs:
             /repos/${{ github.repository_owner }}/${{ github.event.repository.name }}/check-runs/${{ env.CHECK_ID }}
 
 
-  icu4c-linux:
+  icu4c-linux-clang:
     if: contains(github.event_name, 'workflow_dispatch') || contains(github.event.comment.body, 'run exhaustive tests')
     runs-on: ubuntu-latest
     timeout-minutes: 120
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       - name: Fetch PR Details
         id: pr-details
+        if: contains(github.event.comment.body, 'run exhaustive tests')
         run: |
           echo ${{ secrets.GITHUB_TOKEN }} | gh auth login --with-token
           gh api "${{ github.event.issue.pull_request.url }}" > pr.json
@@ -92,6 +109,7 @@ jobs:
           echo "SHA=$SHA" >> $GITHUB_ENV
       - name: Add a check to the PR
         id: add-check
+        if: contains(github.event.comment.body, 'run exhaustive tests')
         run: |
           WORKFLOW_URL="${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
           echo $WORKFLOW_URL
@@ -118,7 +136,7 @@ jobs:
           CC: clang
           CXX: clang++
       - name: Complete the check
-        if: always()
+        if: always() && contains(github.event.comment.body, 'run exhaustive tests')
         run: |
           WORKFLOW_URL="${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
           STATUS="completed"