chore: Run Test only when necessary (#9538)

**What kind of change does this PR introduce?**

CI change

**Did you add tests for your changes?**

N/A

**If relevant, did you update the documentation?**

**Summary**

We want to run our test only when relevant parts of the code are
changed.
Example change to `ng-schematics` should not trigger `puppeteer` test.

**Does this PR introduce a breaking change?**

No

**Other information**

.github/workflows/ci.yml

@@ -39,11 +39,11 @@ jobs:
         run: npm run commitlint
         if: github.event_name != 'pull_request'
 
-  check-docs:
+  check-changes:
-    name: Check documentation
+    name: Check which packages changed
     runs-on: ubuntu-latest
     outputs:
-      needs_deploying: ${{ steps.needs_deploying.outputs.value }}
+      changes: ${{ steps.changes.outputs.changes }}
     steps:
       - name: Check out repository
         uses: actions/checkout@v3.1.0
@@ -58,6 +58,26 @@ jobs:
         run: npm ci --ignore-scripts
       - name: Build
         run: npm run docs
+      - name: Detect changed packages
+        uses: dorny/paths-filter@v2.11.1
+        id: changes
+        with:
+          filters: |
+            puppeteer:
+              - '.github/workflows/ci.yml'
+              - 'packages/puppeteer/**'
+              - 'packages/puppeteer-core/**'
+              - 'docker/**'
+              - 'test/**'
+              - 'test-d/**'
+              - 'tools/mochaRunner/**'
+            website:
+              - '.github/workflows/ci.yml'
+              - 'docs/**'
+              - 'website/**'
+            ng-schematics:
+              - '.github/workflows/ci.yml'
+              - 'packages/ng-schematics/**'
       - name: Check if autogenerated docs differ
         run: |
           diff_file=$(mktemp doc_diff_XXXXXX)
@@ -69,20 +89,11 @@ jobs:
             exit 1
           fi
           rm $diff_file
-      - name: Check if docs need to be deployed
-        id: needs_deploying
-        run: |
-          if [[ $(git diff HEAD^ -- ./docs ./website) ]]; then
-            needs_deploying=true
-          else
-            needs_deploying=false
-          fi
-          echo "value=$needs_deploying" >> $GITHUB_OUTPUT
 
   deploy-docs:
-    needs: check-docs
+    needs: check-changes
     name: Deploy docs (if needed)
-    if: ${{ needs.check-docs.outputs.needs_deploying == 'true' && github.event_name != 'pull_request' }}
+    if: ${{ github.event_name != 'pull_request' && contains(fromJSON(needs.check-changes.outputs.changes), 'website') }}
     runs-on: ubuntu-latest
     permissions:
       contents: write
@@ -121,6 +132,8 @@ jobs:
   chrome-tests:
     name: ${{ matrix.suite }} tests on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
+    needs: check-changes
+    if: ${{ contains(fromJSON(needs.check-changes.outputs.changes), 'puppeteer') }}
     strategy:
       fail-fast: false
       matrix:
@@ -167,9 +180,21 @@ jobs:
         if: ${{ matrix.os == 'ubuntu-latest' }}
         run: xvfb-run --auto-servernum npm run test -- --test-suite ${{ matrix.suite }}
 
+  chrome-tests-required:
+    name: Chrome tests required job
+    needs: [check-changes, chrome-tests]
+    runs-on: ubuntu-latest
+    if: ${{ always() }}
+    steps:
+      - if: ${{ needs.chrome-tests.result != 'success' && contains(fromJSON(needs.check-changes.outputs.changes), 'puppeteer') }}
+        run: 'exit 1'
+      - run: 'exit 0'
+
   firefox-tests:
     name: ${{ matrix.suite }} tests on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
+    needs: check-changes
+    if: ${{ contains(fromJSON(needs.check-changes.outputs.changes), 'puppeteer') }}
     strategy:
       fail-fast: false
       matrix:
@@ -213,10 +238,21 @@ jobs:
         if: ${{ matrix.os == 'ubuntu-latest' }}
         run: xvfb-run --auto-servernum npm run test -- --test-suite ${{ matrix.suite }}
 
+  firefox-tests-required:
+    name: Firefox tests required job
+    needs: [check-changes, firefox-tests]
+    runs-on: ubuntu-latest
+    if: ${{ always() }}
+    steps:
+      - if: ${{ needs.firefox-tests.result != 'success' && contains(fromJSON(needs.check-changes.outputs.changes), 'puppeteer') }}
+        run: 'exit 1'
+      - run: 'exit 0'
+
   installation-test-build:
     name: Build installation test
     runs-on: ubuntu-latest
-    if: "!startsWith(github.ref_name, 'release-please')"
+    needs: check-changes
+    if: ${{ !startsWith(github.ref_name, 'release-please') && contains(fromJSON(needs.check-changes.outputs.changes), 'puppeteer') }}
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -240,6 +276,7 @@ jobs:
   installation-test:
     name: Test ${{ matrix.pkg_manager }} installation on ${{ matrix.os }} (${{ matrix.node }})
     needs: installation-test-build
+    if: ${{ !startsWith(github.ref_name, 'release-please') }}
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -279,9 +316,21 @@ jobs:
           PKG_MANAGER: ${{ matrix.pkg_manager }}
         run: ${{ matrix.pkg_manager }} test
 
+  installation-test-required:
+    name: Installation tests required job
+    needs: [check-changes, installation-test]
+    runs-on: ubuntu-latest
+    if: ${{ always() }}
+    steps:
+      - if: ${{ needs.installation-test.result != 'success' && contains(fromJSON(needs.check-changes.outputs.changes), 'puppeteer') }}
+        run: 'exit 1'
+      - run: 'exit 0'
+
   docker-tests:
     name: Test Docker image
     runs-on: ubuntu-latest
+    needs: check-changes
+    if: ${{ contains(fromJSON(needs.check-changes.outputs.changes), 'puppeteer') }}
     steps:
       - name: Check out repository
         uses: actions/checkout@v3.0.2
@@ -310,6 +359,8 @@ jobs:
   ng-schematics-tests:
     name: Test Angular Schematics
     runs-on: ubuntu-latest
+    needs: check-changes
+    if: ${{ contains(fromJSON(needs.check-changes.outputs.changes), 'ng-schematics') }}
     steps:
       - name: Checkout
         uses: actions/checkout@v3