Fix #904: test that repo owner is Quantumlib

.github/workflows/ci.yaml

@@ -56,8 +56,17 @@ concurrency:
 permissions: read-all
 
 jobs:
+  check-owner:
+    if: github.repository_owner == 'quantumlib'
+    name: 'Check that the repository owner is Quantumlib'
+    runs-on: ubuntu-slim
+    timeout-minutes: 5
+    steps:
+      - run: true
+
   python-checks:
     name: 'Python format & lint checks'
+    needs: check-owner
     runs-on: ubuntu-slim
     timeout-minutes: 20
     steps:
@@ -92,6 +101,7 @@ jobs:
 
   docker-lint:
     name: Dockerfile lint checks
+    needs: check-owner
     # ubuntu-slim runners don't have docker installed.
     runs-on: ubuntu-24.04
     timeout-minutes: 15
@@ -114,6 +124,7 @@ jobs:
 
   shell-lint:
     name: Shell script lint checks
+    needs: check-owner
     runs-on: ubuntu-slim
     timeout-minutes: 15
     steps:
@@ -136,6 +147,7 @@ jobs:
 
   yaml-lint:
     name: YAML lint checks
+    needs: check-owner
     runs-on: ubuntu-slim
     timeout-minutes: 15
     steps:
@@ -160,6 +172,7 @@ jobs:
 
   bazel-lint:
     name: Bazel build lint checks
+    needs: check-owner
     runs-on: ubuntu-slim
     timeout-minutes: 15
     steps:
@@ -183,6 +196,7 @@ jobs:
 
   action-lint:
     name: GitHub Actions lint checks
+    needs: check-owner
     runs-on: ubuntu-slim
     timeout-minutes: 15
     steps:
@@ -204,6 +218,7 @@ jobs:
     needs:
       - action-lint
       - bazel-lint
+      - check-owner
       - python-checks
       - shell-lint
       - yaml-lint
@@ -298,6 +313,7 @@ jobs:
     needs:
       - action-lint
       - bazel-lint
+      - check-owner
       - python-checks
       - shell-lint
       - yaml-lint
@@ -353,6 +369,7 @@ jobs:
     needs:
       - action-lint
       - bazel-lint
+      - check-owner
       - python-checks
       - shell-lint
       - yaml-lint
@@ -407,6 +424,7 @@ jobs:
     name: Docker build tests
     needs:
       - action-lint
+      - check-owner
       - docker-lint
       - python-checks
       - shell-lint
@@ -451,6 +469,7 @@ jobs:
     needs:
       - action-lint
       - bazel-lint
+      - check-owner
       - docker-lint
       - docker-tests
       - library-tests

.github/workflows/cirq_compatibility.yml

@@ -35,6 +35,7 @@ concurrency:
 
 jobs:
   test-compatibility:
+    if: github.repository_owner == 'quantumlib'
     name: Test Cirq compatibility
     runs-on: ubuntu-24.04
     timeout-minutes: 30