ci: replace single gating check with vanilla skipping (#1008)

Author: cpcloud

.github/workflows/ci.yml

@@ -32,17 +32,38 @@ jobs:
           cuda_build_ver=$(jq -r .cuda.build.version ci/versions.json)
           echo "cuda_build_ver=$cuda_build_ver" >> $GITHUB_OUTPUT
 
+  should-skip:
+    runs-on: ubuntu-latest
+    outputs:
+      skip: ${{ steps.get-should-skip.outputs.skip }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8  # v5.0.0
+      - name: Compute whether to skip builds and tests
+        id: get-should-skip
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          set -euxo pipefail
+          if ${{ startsWith(github.ref_name, 'pull-request/') }}; then
+            skip="$(gh pr view "$(grep -Po '(\d+)$' <<< '${{ github.ref_name }}')" --json title --jq '.title | contains("[no-ci]")')"
+          else
+            skip=false
+          fi
+          echo "skip=${skip}" >> "$GITHUB_OUTPUT"
+
   # WARNING: make sure all of the build jobs are in sync
   build-linux-64:
     needs:
       - ci-vars
+      - should-skip
     strategy:
       fail-fast: false
       matrix:
         host-platform:
           - linux-64
     name: Build ${{ matrix.host-platform }}, CUDA ${{ needs.ci-vars.outputs.CUDA_BUILD_VER }}
-    if: ${{ github.repository_owner == 'nvidia' }}
+    if: ${{ github.repository_owner == 'nvidia' && !fromJSON(needs.should-skip.outputs.skip) }}
     secrets: inherit
     uses: ./.github/workflows/build-wheel.yml
     with:
@@ -53,13 +74,14 @@ jobs:
   build-linux-aarch64:
     needs:
       - ci-vars
+      - should-skip
     strategy:
       fail-fast: false
       matrix:
         host-platform:
           - linux-aarch64
     name: Build ${{ matrix.host-platform }}, CUDA ${{ needs.ci-vars.outputs.CUDA_BUILD_VER }}
-    if: ${{ github.repository_owner == 'nvidia' }}
+    if: ${{ github.repository_owner == 'nvidia' && !fromJSON(needs.should-skip.outputs.skip) }}
     secrets: inherit
     uses: ./.github/workflows/build-wheel.yml
     with:
@@ -70,13 +92,14 @@ jobs:
   build-windows:
     needs:
       - ci-vars
+      - should-skip
     strategy:
       fail-fast: false
       matrix:
         host-platform:
           - win-64
     name: Build ${{ matrix.host-platform }}, CUDA ${{ needs.ci-vars.outputs.CUDA_BUILD_VER }}
-    if: ${{ github.repository_owner == 'nvidia' }}
+    if: ${{ github.repository_owner == 'nvidia' && !fromJSON(needs.should-skip.outputs.skip) }}
     secrets: inherit
     uses: ./.github/workflows/build-wheel.yml
     with:
@@ -163,15 +186,12 @@ jobs:
 
   checks:
     name: Check job status
-    permissions:
-      checks: read
+    runs-on: ubuntu-latest
     needs:
-      - build-linux-64
       - test-linux-64
-      - build-linux-aarch64
       - test-linux-aarch64
-      - build-windows
       - test-windows
       - doc
-    secrets: inherit
-    uses: ./.github/workflows/status-check.yml
+    steps:
+      - name: Exit
+        run: exit 0