refactor(ci): ⚙️ update check-missing-images workflow to improve tag handling and skip pattern logic

Author: tmeckel

.github/workflows/check-missing-images.yml

@@ -6,49 +6,85 @@ on:
     - cron: '0 6 * * *'
 
 jobs:
-  check-and-build:
+  check-missing-images:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
           fetch-tags: true
 
       - name: List version tags
         id: list_tags
+        env:
+          VERSION_PREFIX: ${{ vars.VERSION_PREFIX || 'v' }}
         run: |
+          if [[ -n "${VERSION_PREFIX}" ]]; then
+            tags=$(git tag | grep "^${VERSION_PREFIX}" | sort -r)
+          else
+            tags=$(git tag | sort -r)
+          fi
+
+          # Output tags for next step
           {
-            tags=$(git tag | grep '^v' | sort -r)
             echo "tags<<EOF"
-            echo "$tags"
+            printf "%s\n" "${tags}"
             echo "EOF"
           } >> "$GITHUB_OUTPUT"
 
       - name: Check GHCR for existing images
         id: check_images
         env:
           TOKEN: ${{ secrets.GHCR_READ_TOKEN || secrets.GITHUB_TOKEN }}
+          SKIP_TAGS: ${{ vars.SKIP_TAGS }}
+          GHCR_ORG: ${{ vars.GHCR_ORG || github.repository_owner }}
+          GHCR_CONTAINER: ${{ vars.GHCR_CONTAINER }}
         run: |
           missing_tags=()
+
           # Use GitHub REST API to list container image versions (tags)
           ghcr_tags=$(curl -sSL \
               -H "Accept: application/vnd.github+json" \
               -H "X-GitHub-Api-Version: 2022-11-28" \
               -H "Authorization: Bearer ${TOKEN}" \
-              https://api.github.com/orgs/ophiosdev/packages/container/codex-cli/versions \
+              "https://api.github.com/orgs/${GHCR_ORG}/packages/container/${GHCR_CONTAINER}/versions" \
             | jq -r '.[].metadata.container.tags[]?' 2>/dev/null || true)
 
-          echo "Existing GHCR tags: $ghcr_tags"
+          echo "📦 Existing GHCR tags:"
+          echo "$ghcr_tags"
+
+          # Combine multiline skip patterns into single regex
+          skip_regex=""
+          if [[ -n "${SKIP_TAGS:-}" ]]; then
+            skip_regex=$(echo "$SKIP_TAGS" | tr -s '\r\n' '|' | sed 's/|$//')
+            echo "🚫 Skip regex: $skip_regex"
+          else
+            echo "ℹ️ No skip patterns defined."
+          fi
+
+          declare -i skipped_count=0
+          declare -i total_tags=0
 
           while IFS= read -r tag; do
-            if ! grep -qx "${tag#v}" <<< "$ghcr_tags"; then
-              echo "Image missing for $tag"
+            total_tags+=1
+            if [[ -n "$skip_regex" && "$tag" =~ $skip_regex ]]; then
+              echo "➡️ Skipping $tag (matches skip pattern)"
+              skipped_count+=1
+              continue
+            fi
+            if ! grep -qx "${tag#v}" <<< "$ghcr_tags" >/dev/null 2>&1; then
+              echo "❌ Image missing for $tag"
               missing_tags+=("$tag")
             fi
           done <<< "${{ steps.list_tags.outputs.tags }}"
 
-          # Output missing tags correctly to GITHUB_OUTPUT
+          echo "===== Summary ====="
+          echo " Total tags checked:   $total_tags"
+          echo " Skipped tags:         $skipped_count"
+          echo " Missing images found: ${#missing_tags[@]}"
+
+          # Output missing tags for next step
           {
             echo "missing_tags<<EOF"
             printf "%s\n" "${missing_tags[@]}"
@@ -66,8 +102,9 @@ jobs:
         if: steps.check_images.outputs.missing_tags != ''
         env:
           GH_TOKEN: ${{ steps.app_token.outputs.token }}
+          WORKFLOW: ${{ vars.BUILD_WORKFLOW || 'build-and-deploy.yml' }}
         run: |
           while read -r tag; do
             echo "Triggering build-and-deploy for $tag"
-            gh workflow run build-and-deploy.yml --ref "$tag"
+            gh workflow run "${BUILD_WORKFLOW}" --ref "$tag"
           done <<< "${{ steps.check_images.outputs.missing_tags }}"