Auto release when add tag

Author: nao1215

.github/workflows/release.yml

@@ -0,0 +1,77 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Extract tag name
+        id: tag
+        run: echo "TAG_NAME=${GITHUB_REF#refs/tags/}" >> "$GITHUB_OUTPUT"
+
+      - name: Extract changelog for this version
+        id: changelog
+        run: |
+          # Extract the current version's changelog
+          TAG="${{ steps.tag.outputs.TAG_NAME }}"
+          TAG_WITHOUT_V="${TAG#v}"
+          
+          # Create a temporary file for the changelog content
+          CHANGELOG_FILE="changelog_content.md"
+          
+          # Extract content between the current version and the next version header
+          # This handles different possible formats: ## [x.y.z], ## x.y.z, ### [x.y.z], ### x.y.z
+          awk -v ver="$TAG_WITHOUT_V" '
+            BEGIN { found = 0; }
+            $0 ~ "^#{2,3} \\[?" ver "\\]?" { found = 1; next; }
+            /^#{2,3} \[?[0-9]+\.[0-9]+\.[0-9]+\]?/ { if (found) exit; }
+            found { print; }
+          ' CHANGELOG.md > "$CHANGELOG_FILE"
+          
+          # If no content found with version without 'v', try with 'v'
+          if [ ! -s "$CHANGELOG_FILE" ]; then
+            awk -v ver="$TAG" '
+              BEGIN { found = 0; }
+              $0 ~ "^#{2,3} \\[?" ver "\\]?" { found = 1; next; }
+              /^#{2,3} \[?v?[0-9]+\.[0-9]+\.[0-9]+\]?/ { if (found) exit; }
+              found { print; }
+            ' CHANGELOG.md > "$CHANGELOG_FILE"
+          fi
+          
+          # If still no content, use a default message
+          if [ ! -s "$CHANGELOG_FILE" ]; then
+            echo "No changelog entry found for version $TAG" > "$CHANGELOG_FILE"
+            echo ""
+            echo "Please check CHANGELOG.md for updates." >> "$CHANGELOG_FILE"
+          fi
+          
+          # Set the output
+          {
+            echo 'CHANGELOG_CONTENT<<EOF'
+            cat "$CHANGELOG_FILE"
+            echo 'EOF'
+          } >> "$GITHUB_OUTPUT"
+
+      - name: Create Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: ${{ steps.tag.outputs.TAG_NAME }}
+          name: ${{ steps.tag.outputs.TAG_NAME }}
+          body: ${{ steps.changelog.outputs.CHANGELOG_CONTENT }}
+          draft: false
+          prerelease: ${{ contains(steps.tag.outputs.TAG_NAME, '-alpha') || contains(steps.tag.outputs.TAG_NAME, '-beta') || contains(steps.tag.outputs.TAG_NAME, '-rc') }}
+          generate_release_notes: false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}