feat: enhance build process and add readiness checks for components

.gitea/workflows/backend-docker.yml

@@ -21,13 +21,16 @@ jobs:
   resolve-build-targets:
     runs-on: ubuntu-latest
     outputs:
-      matrix: ${{ steps.targets.outputs.matrix }}
       count: ${{ steps.targets.outputs.count }}
+      backend_changed: ${{ steps.targets.outputs.backend_changed }}
+      admin_changed: ${{ steps.targets.outputs.admin_changed }}
       frontend_changed: ${{ steps.targets.outputs.frontend_changed }}
 
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - name: Resolve build targets
         id: targets
@@ -91,40 +94,32 @@ jobs:
           [ -n "${SELECTED[admin]:-}" ] && COMPONENTS+=(admin)
 
           COMPONENTS_CSV="$(IFS=,; echo "${COMPONENTS[*]}")"
-          export COMPONENTS_CSV
+          BACKEND_CHANGED=false
+          FRONTEND_CHANGED=false
+          ADMIN_CHANGED=false
+          COUNT=0
 
-          python <<'PY' >> "$GITHUB_OUTPUT"
-          import json
-          import os
+          if [ -n "${SELECTED[backend]:-}" ]; then
+            BACKEND_CHANGED=true
+            COUNT=$((COUNT + 1))
+          fi
 
-          mapping = {
-              "backend": {
-                  "component": "backend",
-                  "dockerfile": "backend/Dockerfile",
-                  "context": "backend",
-                  "default_image_name": "termi-astro-backend",
-              },
-              "frontend": {
-                  "component": "frontend",
-                  "dockerfile": "frontend/Dockerfile",
-                  "context": "frontend",
-                  "default_image_name": "termi-astro-frontend",
-              },
-              "admin": {
-                  "component": "admin",
-                  "dockerfile": "admin/Dockerfile",
-                  "context": "admin",
-                  "default_image_name": "termi-astro-admin",
-              },
-          }
+          if [ -n "${SELECTED[frontend]:-}" ]; then
+            FRONTEND_CHANGED=true
+            COUNT=$((COUNT + 1))
+          fi
 
-          components = [item for item in os.environ.get("COMPONENTS_CSV", "").split(",") if item]
-          matrix = {"include": [mapping[item] for item in components]}
+          if [ -n "${SELECTED[admin]:-}" ]; then
+            ADMIN_CHANGED=true
+            COUNT=$((COUNT + 1))
+          fi
 
-          print(f"matrix={json.dumps(matrix, separators=(',', ':'))}")
-          print(f"count={len(components)}")
-          print(f"frontend_changed={'true' if 'frontend' in components else 'false'}")
-          PY
+          {
+            echo "count=${COUNT}"
+            echo "backend_changed=${BACKEND_CHANGED}"
+            echo "frontend_changed=${FRONTEND_CHANGED}"
+            echo "admin_changed=${ADMIN_CHANGED}"
+          } >> "$GITHUB_OUTPUT"
 
           echo "Selected components: ${COMPONENTS_CSV}"
           if [ -n "${CHANGED_FILES}" ]; then
@@ -135,19 +130,71 @@ jobs:
           fi
 
   build-and-push:
+    name: build-and-push (${{ matrix.component }})
     needs: resolve-build-targets
     if: needs.resolve-build-targets.outputs.count != '0'
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       max-parallel: 1
-      matrix: ${{ fromJson(needs.resolve-build-targets.outputs.matrix) }}
+      matrix:
+        include:
+          - component: backend
+            dockerfile: backend/Dockerfile
+            context: backend
+            default_image_name: termi-astro-backend
+          - component: frontend
+            dockerfile: frontend/Dockerfile
+            context: frontend
+            default_image_name: termi-astro-frontend
+          - component: admin
+            dockerfile: admin/Dockerfile
+            context: admin
+            default_image_name: termi-astro-admin
 
     steps:
+      - name: Decide whether to build current component
+        id: should_build
+        shell: bash
+        env:
+          COMPONENT: ${{ matrix.component }}
+          BACKEND_CHANGED: ${{ needs.resolve-build-targets.outputs.backend_changed }}
+          FRONTEND_CHANGED: ${{ needs.resolve-build-targets.outputs.frontend_changed }}
+          ADMIN_CHANGED: ${{ needs.resolve-build-targets.outputs.admin_changed }}
+        run: |
+          set -euo pipefail
+
+          SHOULD_BUILD=false
+
+          case "${COMPONENT}" in
+            backend)
+              SHOULD_BUILD="${BACKEND_CHANGED}"
+              ;;
+            frontend)
+              SHOULD_BUILD="${FRONTEND_CHANGED}"
+              ;;
+            admin)
+              SHOULD_BUILD="${ADMIN_CHANGED}"
+              ;;
+          esac
+
+          echo "should_build=${SHOULD_BUILD}" >> "$GITHUB_OUTPUT"
+          echo "component=${COMPONENT}"
+          echo "should_build=${SHOULD_BUILD}"
+
+      - name: Skip unchanged component
+        if: steps.should_build.outputs.should_build != 'true'
+        shell: bash
+        env:
+          COMPONENT: ${{ matrix.component }}
+        run: echo "No changes detected for ${COMPONENT}, skipping docker build."
+
       - name: Checkout
+        if: steps.should_build.outputs.should_build == 'true'
         uses: actions/checkout@v4
 
       - name: Resolve image metadata
+        if: steps.should_build.outputs.should_build == 'true'
         id: meta
         shell: bash
         env:
@@ -217,6 +264,7 @@ jobs:
           } >> "$GITHUB_OUTPUT"
 
       - name: Login registry
+        if: steps.should_build.outputs.should_build == 'true'
         shell: bash
         env:
           REGISTRY_HOST: ${{ steps.meta.outputs.registry_host }}
@@ -271,6 +319,7 @@ jobs:
           fi
 
       - name: Setup docker buildx
+        if: steps.should_build.outputs.should_build == 'true'
         shell: bash
         run: |
           set -euo pipefail
@@ -284,6 +333,7 @@ jobs:
           docker buildx inspect --bootstrap
 
       - name: Login Docker Hub (optional)
+        if: steps.should_build.outputs.should_build == 'true'
         shell: bash
         env:
           DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
@@ -298,6 +348,7 @@ jobs:
           fi
 
       - name: Build and push image
+        if: steps.should_build.outputs.should_build == 'true'
         shell: bash
         env:
           COMPONENT: ${{ matrix.component }}
@@ -345,6 +396,7 @@ jobs:
             "${CONTEXT_DIR}"
 
       - name: Output image tags
+        if: steps.should_build.outputs.should_build == 'true'
         shell: bash
         env:
           COMPONENT: ${{ matrix.component }}