fix: Improve workflow - PHP-only releases and error handling

更新がない場合やバージョン抽出失敗時のエラーを解消。
PHPバージョンアップ時のみリリース、Nginx/Seleniumのみの場合はvalues.yaml更新のみ。

Changes:
- PHPバージョン抽出失敗時は警告のみ（exit 1を削除）
- 更新判定ロジックを改善（php_updated フラグを追加）
- Chart.yaml更新とリリース処理をPHP更新時のみに限定
- Nginx/Seleniumのみ更新時はvalues.yamlのみコミット
- 既存タグ/リリースのチェックを追加（重複エラー回避）
- コミットメッセージを更新内容に応じて変更
- Summaryにリリース有無の情報を追加

Behavior:
- PHP更新時: values.yaml + Chart.yaml更新、リリース作成
- Nginx/Selenium更新時: values.yamlのみ更新、リリースなし
- 更新なし: 正常終了（エラーなし）

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.gitea/workflows/image-update-and-release.yaml

@@ -72,8 +72,9 @@ jobs:
           # PHPバージョンを抽出 (8.5.2の部分)
           APP_VERSION=$(echo "$LATEST" | grep -oE '^[0-9]+\.[0-9]+\.[0-9]+')
           if [ -z "$APP_VERSION" ]; then
-            echo "Error: Could not extract PHP version from: $LATEST"
+            echo "Warning: Could not extract PHP version from: $LATEST"
-            exit 1
+            echo "Using current version instead"
+            APP_VERSION=$(echo "$CURRENT" | grep -oE '^[0-9]+\.[0-9]+\.[0-9]+')
           fi
 
           echo "Latest PHP: $LATEST"
@@ -120,12 +121,33 @@ jobs:
           echo "PHP: $PHP_CURRENT vs $PHP_LATEST"
           echo "Selenium: $SELENIUM_CURRENT vs $SELENIUM_LATEST"
 
-          if [ "$NGINX_CURRENT" != "$NGINX_LATEST" ] || [ "$PHP_CURRENT" != "$PHP_LATEST" ] || [ "$SELENIUM_CURRENT" != "$SELENIUM_LATEST" ]; then
+          # 更新が必要かチェック
-            echo "update_needed=true" >> $GITHUB_OUTPUT
+          UPDATE_NEEDED=false
+          PHP_UPDATED=false
+
+          if [ "$PHP_CURRENT" != "$PHP_LATEST" ]; then
+            UPDATE_NEEDED=true
+            PHP_UPDATED=true
+            echo "PHP update detected"
+          fi
+
+          if [ "$NGINX_CURRENT" != "$NGINX_LATEST" ]; then
+            UPDATE_NEEDED=true
+            echo "Nginx update detected"
+          fi
+
+          if [ "$SELENIUM_CURRENT" != "$SELENIUM_LATEST" ]; then
+            UPDATE_NEEDED=true
+            echo "Selenium update detected"
+          fi
+
+          echo "update_needed=$UPDATE_NEEDED" >> $GITHUB_OUTPUT
+          echo "php_updated=$PHP_UPDATED" >> $GITHUB_OUTPUT
+
+          if [ "$UPDATE_NEEDED" = "true" ]; then
             echo "Update is needed"
           else
-            echo "update_needed=false" >> $GITHUB_OUTPUT
+            echo "Already up to date - no action required"
-            echo "Already up to date"
           fi
 
       - name: Update values.yaml
@@ -169,7 +191,7 @@ jobs:
           git diff values.yaml
 
       - name: Update Chart.yaml version
-        if: steps.check_update.outputs.update_needed == 'true'
+        if: steps.check_update.outputs.php_updated == 'true'
         run: |
           set -e
           APP_VERSION="${{ steps.php.outputs.app_version }}"
@@ -183,26 +205,41 @@ jobs:
         run: |
           git config user.name "GitHub Actions Bot"
           git config user.email "actions@github.com"
+
+          if [ "${{ steps.check_update.outputs.php_updated }}" = "true" ]; then
+            # PHP更新時はChart.yamlも含める
             git add values.yaml Chart.yaml
             git commit -m "chore: update to PHP ${{ steps.php.outputs.app_version }}, nginx ${{ steps.nginx.outputs.latest }}, selenium ${{ steps.selenium.outputs.latest }}"
+          else
+            # Nginx/Seleniumのみの更新時はvalues.yamlのみ
+            git add values.yaml
+            git commit -m "chore: update nginx to ${{ steps.nginx.outputs.latest }}, selenium to ${{ steps.selenium.outputs.latest }} (no release)"
+          fi
+
           git push origin main
 
       - name: Package Helm Chart
-        if: steps.check_update.outputs.update_needed == 'true'
+        if: steps.check_update.outputs.php_updated == 'true'
         run: |
           helm package .
           echo "Helm chart packaged"
 
       - name: Create Git Tag
-        if: steps.check_update.outputs.update_needed == 'true'
+        if: steps.check_update.outputs.php_updated == 'true'
         run: |
           APP_VERSION="${{ steps.php.outputs.app_version }}"
+
+          # タグが既に存在する場合はスキップ
+          if git rev-parse "v$APP_VERSION" >/dev/null 2>&1; then
+            echo "Tag v$APP_VERSION already exists, skipping tag creation"
+          else
             git tag -a "v$APP_VERSION" -m "Release PHP $APP_VERSION"
             git push origin "v$APP_VERSION"
             echo "Git tag v$APP_VERSION created"
+          fi
 
       - name: Create Gitea Release
-        if: steps.check_update.outputs.update_needed == 'true'
+        if: steps.check_update.outputs.php_updated == 'true'
         env:
           GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
         run: |
@@ -210,13 +247,19 @@ jobs:
           CHART_NAME=$(grep '^name:' Chart.yaml | awk '{print $2}')
           PACKAGE_FILE="${CHART_NAME}-${APP_VERSION}.tgz"
           RELEASE_BODY="PHP Helm Chart v${APP_VERSION} - Automated release"
+
+          # リリースが既に存在する場合はスキップ
+          if curl -s -H "Authorization: token ${GITEA_TOKEN}" "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/tags/v${APP_VERSION}" | jq -e '.id' >/dev/null 2>&1; then
+            echo "Release v$APP_VERSION already exists, skipping release creation"
+          else
             curl -X POST -H "Authorization: token ${GITEA_TOKEN}" -H "Content-Type: application/json" -d "{\"tag_name\":\"v${APP_VERSION}\",\"name\":\"v${APP_VERSION}\",\"body\":\"${RELEASE_BODY}\"}" "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases"
             RELEASE_ID=$(curl -s -H "Authorization: token ${GITEA_TOKEN}" "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/tags/v${APP_VERSION}" | jq -r '.id')
             curl -X POST -H "Authorization: token ${GITEA_TOKEN}" -H "Content-Type: application/gzip" --data-binary "@${PACKAGE_FILE}" "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/${RELEASE_ID}/assets?name=${PACKAGE_FILE}"
             echo "Release created"
+          fi
 
       - name: Update Helm Repository Index
-        if: steps.check_update.outputs.update_needed == 'true'
+        if: steps.check_update.outputs.php_updated == 'true'
         run: |
           set -e
           APP_VERSION="${{ steps.php.outputs.app_version }}"
@@ -270,7 +313,16 @@ jobs:
           APP_VERSION="${{ steps.php.outputs.app_version }}"
           NGINX_VERSION="${{ steps.nginx.outputs.latest }}"
           SELENIUM_VERSION="${{ steps.selenium.outputs.latest }}"
+          PHP_UPDATED="${{ steps.check_update.outputs.php_updated }}"
+
           echo "Update completed!"
           echo "- PHP: ${APP_VERSION}"
           echo "- Nginx: ${NGINX_VERSION}"
           echo "- Selenium: ${SELENIUM_VERSION}"
+          echo ""
+
+          if [ "$PHP_UPDATED" = "true" ]; then
+            echo "✅ PHP version updated - Release created (v${APP_VERSION})"
+          else
+            echo "ℹ️  Nginx/Selenium only update - No release (waiting for next PHP update)"
+          fi