Cache branch images in ci

Qureshi2131 · Dec 5, 2018 · b0c093c · b0c093c
1 parent 8811b2d
commit b0c093c
Showing 1 changed file with 10 additions and 2 deletions.
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -10,14 +10,22 @@ jobs:
 
       - run: docker login -u "$DOCKER_USER" -p "$DOCKER_PASSWORD"
       - run: docker pull ubuntu:18.04
-      - run: docker pull dependabot/dependabot-core:latest
-      - run: docker pull dependabot/dependabot-core-ci:latest || true
+      - run: |
+          BRANCH_TAG="ci-$(echo $BRANCH | sed -E 's/[^A-Za-z0-9]+/-/g')"
+          echo "export BRANCH_TAG='$BRANCH_TAG'" >> $BASH_ENV
+      - run: docker pull "dependabot/dependabot-core:$BRANCH_TAG" ||
+             docker pull dependabot/dependabot-core:latest
       - run: docker build
              -t dependabot/dependabot-core:latest
+             -t "dependabot/dependabot-core:$BRANCH_TAG"
              --cache-from ubuntu:18.04
+             --cache-from "dependabot/dependabot-core:$BRANCH_TAG"
              --cache-from dependabot/dependabot-core:latest
              .
+      - run: docker push "dependabot/dependabot-core:$BRANCH_TAG"
+
       - run: rm .dockerignore  # we usually don't want tests etc, but here we do
+      - run: docker pull dependabot/dependabot-core-ci:latest || true
       - run: docker build
              -t dependabot/dependabot-core-ci
              -f Dockerfile.ci