central derive image metadata

.github/actions/build-and-push/action.yaml

@@ -75,70 +75,14 @@ runs:
           exit 1
         fi
 
-    - name: Derive image tags
+    - name: Derive image metadata
       id: vars
       shell: bash
       env:
         IMAGE_NAME: ${{ env.IMAGE_NAME }}
         TAG_INPUT: ${{ inputs.tag }}
       run: |
-        IMAGE="${IMAGE_NAME}"
-        TAGS=()
-
-        if [ -n "${TAG_INPUT}" ]; then
-          TAGS+=("${IMAGE}:${TAG_INPUT}")
-        else
-          TAG_NAME=""
-          REF="${GITHUB_REF:-${GITEA_REF}}"
-          SHA="${GITHUB_SHA:-${GITEA_SHA}}"
-          BRANCH=""
-          SHORT_SHA="$(git rev-parse --short=7 "${SHA}")"
-
-          # Extract tag name when we are on a tag ref (e.g. v1.4)
-          if [[ "${REF}" =~ refs/tags/(.+) ]]; then
-            TAG_NAME="${BASH_REMATCH[1]}"
-          fi
-
-          if [[ "${REF}" =~ refs/heads/(.+) ]]; then
-            BRANCH="${BASH_REMATCH[1]}"
-          else
-            # Tag build: detect which branch contains the tagged commit
-            git fetch --no-tags --depth=1 origin main release develop || true
-            if git branch -r --contains "${SHA}" | grep -q "origin/main"; then
-              BRANCH="main"
-            elif git branch -r --contains "${SHA}" | grep -q "origin/release"; then
-              BRANCH="release"
-            elif git branch -r --contains "${SHA}" | grep -q "origin/develop"; then
-              BRANCH="develop"
-            fi
-          fi
-
-          TAGS+=("${IMAGE}:${SHORT_SHA}")
-          [[ -n "${TAG_NAME}" ]] && TAGS+=("${IMAGE}:${TAG_NAME}")
-
-          case "${BRANCH}" in
-            main)
-              TAGS+=("${IMAGE}:latest")
-              ;;
-            release*)
-              TAGS+=("${IMAGE}:latest-rc")
-              ;;
-            develop)
-              TAGS+=("${IMAGE}:latest-dev")
-              ;;
-            *)
-              TAGS+=("${IMAGE}:latest-snapshot")
-              ;;
-          esac
-        fi
-
-        echo "Computed tags:"
-        printf '%s\n' "${TAGS[@]}"
-        {
-          echo "tags<<EOF"
-          printf '%s\n' "${TAGS[@]}"
-          echo "EOF"
-        } >> "$GITHUB_OUTPUT"
+        bash "${GITHUB_ACTION_PATH}/../shared/derive-image-metadata.sh"
 
     - name: Show build summary
       shell: bash
@@ -149,25 +93,7 @@ runs:
         echo "Image:  ${IMAGE_NAME}"
         echo "Tags:"
         printf '%s\n' "${{ steps.vars.outputs.tags }}"
-
-    - name: Determine deploy target
-      id: deploy
-      shell: bash
-      run: |
-        REF="${GITHUB_REF:-${GITEA_REF}}"
-        SHA="${GITHUB_SHA:-${GITEA_SHA}}"
-        TARGET="dev"
-        if [[ "${REF}" == "refs/heads/main" ]]; then
-          TARGET="prod"
-        elif [[ "${REF}" =~ refs/tags/ ]]; then
-          # Tag builds deploy to prod only if the tagged commit is in main
-          git fetch --no-tags --depth=1 origin main || true
-          if git branch -r --contains "${SHA}" | grep -q "origin/main"; then
-            TARGET="prod"
-          fi
-        fi
-        echo "Deploy target: ${TARGET}"
-        echo "target=${TARGET}" >> "$GITHUB_OUTPUT"
+        echo "Deploy target: ${{ steps.vars.outputs.target }}"
 
     - name: Build and push image
       uses: docker/build-push-action@v5