add --dry-run option to deploy

Author: mayeut

.github/workflows/build.yml

@@ -19,7 +19,7 @@ on:
     paths:
       - ".github/workflows/build.yml"
       - "docker/**"
-      - "build.sh"
+      - "*.sh"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
@@ -68,8 +68,7 @@ jobs:
         run: ./build.sh
 
       - name: Deploy
-        if: github.event_name == 'push' && github.ref == 'refs/heads/main' && github.repository == 'pypa/manylinux'
-        run: ./deploy.sh
+        run: ./deploy.sh ${{ (github.event_name == 'push' && github.ref == 'refs/heads/main' && github.repository == 'pypa/manylinux') && '' || '--dry-run' }}
         env:
           QUAY_USERNAME: ${{ secrets.QUAY_USERNAME }}
           QUAY_PASSWORD: ${{ secrets.QUAY_PASSWORD }}

deploy.sh

@@ -4,6 +4,12 @@ set -euo pipefail
 
 export TZ=UTC0
 
+DRY_RUN=0
+if [ "${1:-}" == "--dry-run" ]; then
+  DRY_RUN=1
+  set -x
+fi
+
 TAG="quay.io/pypa/${POLICY}_${PLATFORM}"
 COMMIT_ABBREV_SHA=$(git show -s --format=%h ${COMMIT_SHA})
 COMMIT_DATE=$(git show -s --format=%cd --date=short ${COMMIT_SHA})
@@ -16,10 +22,13 @@ fi
 BUILD_NUMBER=$(git rev-list --since=${COMMIT_DATE}T00:00:00Z --count ${COMMIT_SHA})
 BUILD_ID2=${COMMIT_DATE//-/.}.${BUILD_NUMBER}
 
-docker login -u $QUAY_USERNAME -p $QUAY_PASSWORD quay.io
 docker tag ${TAG}:${COMMIT_SHA} ${TAG}:${BUILD_ID}
 docker tag ${TAG}:${COMMIT_SHA} ${TAG}:${BUILD_ID2}
 docker tag ${TAG}:${COMMIT_SHA} ${TAG}:latest
-docker push ${TAG}:${BUILD_ID}
-docker push ${TAG}:${BUILD_ID2}
-docker push ${TAG}:latest
+
+if [ $DRY_RUN -eq 0 ]; then
+  docker login -u $QUAY_USERNAME -p $QUAY_PASSWORD quay.io
+  docker push ${TAG}:${BUILD_ID}
+  docker push ${TAG}:${BUILD_ID2}
+  docker push ${TAG}:latest
+fi