backport auto pre-release on -rc branches

.github/workflows/release.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-18.04
     steps:
 
-    - name: checkout repo
+      - name: checkout repo
       uses: actions/checkout@v2
 
     - name: setup java
@@ -87,7 +87,8 @@ jobs:
     - name: prepare release
       run: scripts/release-prepare.sh
       env:
-       RELEASE_BRANCH_NAME: "main"
+        RELEASE_BRANCH_NAME: "main"
+        PRERELEASE_BRANCH_PATTERN: "-rc"
        GIT_RELEASE_BOT_NAME: "nb-droid"
        GIT_RELEASE_BOT_EMAIL: ${{ secrets.GIT_RELEASE_BOT_EMAIL }}
        ACCESS_TOKEN: ${{ secrets.GITHUB_ACCESS_TOKEN }}
@@ -103,7 +104,7 @@ jobs:
     - name: bundle integration test logs
       run: |
         pwd
-        ls -l
+        find nb
         mkdir -p itlogs/nb
         cp -R nb/logs itlogs/nb
 
@@ -138,22 +139,34 @@ jobs:
         mkdir staging
         cp nb/target/nb.jar nb/target/nb staging
 
-    - name: upload artifacts
-      uses: actions/upload-artifact@v1
-      with:
-       name: binaries
-       path: staging
+      - name: upload artifacts
+        uses: actions/upload-artifact@v1
+        with:
+          name: binaries
+          path: staging
 
-    - name: docker push
-      uses: docker/build-push-action@v1
-      with:
-        username: ${{ secrets.DOCKER_USERNAME }}
-        password: ${{ secrets.DOCKER_PASSWORD }}
-        repository: nosqlbench/nosqlbench
-        tags: latest, ${{ env.RELEASE_VERSION }}
-        tag_with_ref: false
+      - name: select release type from branch name
+        run: |
+          current_branch=$(git rev-parse --abbrev-ref HEAD)
+          if [[ ${current_branch} == *"-rc"* ]]
+           then
+            echo "PRERELEASE=true" >> $GITHUB_ENV
+            echo "DOCKER_TAGS='"${{ env.RELEASE_VERSION }}"'" >> $GITHUB_ENV
+           else
+            echo "PRERELEASE=false" >> $GITHUB_ENV
+            echo "DOCKER_TAGS='latest,"${{ env.RELEASE_VERSION }}"'" >> $GITHUB_ENV
+          fi
 
-    - name: bundle guidebook
+      - name: docker push
+        uses: docker/build-push-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+          repository: nosqlbench/nosqlbench
+          tags: ${{ env.DOCKER_TAGS }}
+          tag_with_ref: false
+
+      - name: bundle guidebook
       run: mkdir guidebook && cp -R nb/target/guidebook guidebook
 
     - name: upload guidebook
@@ -171,7 +184,7 @@ jobs:
         tag_name: ${{ env.RELEASE_TAGNAME }}
         release_name: Release ${{ env.RELEASE_TAGNAME }}
         draft: false
-        prerelease: false
+        prerelease: ${{ env.PRERELEASE }}
         body: ${{ steps.prepare_summary.outputs.release_summary }}
 
     - name: upload nb.jar