ci: 优化发布脚本，自动生成分类更新日志

.github/workflows/build.yml

@@ -14,6 +14,9 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          fetch-tags: true
 
       - name: Release version
         id: release_version
@@ -66,6 +69,77 @@ jobs:
           cache-from: type=gha, scope=${{ github.workflow }}-docker
           cache-to: type=gha, scope=${{ github.workflow }}-docker
 
+      - name: Generate Changelog
+        id: changelog
+        run: |
+          # 获取上一个 tag（排除当前版本的 tag）
+          PREVIOUS_TAG=$(git tag -l 'v*' --sort=-v:refname | grep -v "^v${{ env.app_version }}$" | head -n 1)
+          echo "Previous tag: $PREVIOUS_TAG"
+
+          if [ -z "$PREVIOUS_TAG" ]; then
+            # 没有上一个 tag，获取所有 commit
+            COMMITS=$(git log --pretty=format:"%s" HEAD)
+          else
+            # 获取上一个 tag 到当前 HEAD 之间的 commit
+            COMMITS=$(git log --pretty=format:"%s" ${PREVIOUS_TAG}..HEAD)
+          fi
+
+          # 分类收集 commit 消息
+          FEATURES=""
+          FIXES=""
+          OTHERS=""
+
+          while IFS= read -r line; do
+            # 跳过空行、Merge commit 和版本更新 commit
+            if [ -z "$line" ]; then
+              continue
+            fi
+            if echo "$line" | grep -qE "^Merge pull request|^Merge branch|^更新 version"; then
+              continue
+            fi
+
+            # 按 Conventional Commits 前缀分类
+            if echo "$line" | grep -qiE "^feat(\(.+\))?:"; then
+              # 去掉前缀，保留描述
+              desc=$(echo "$line" | sed -E 's/^feat(\([^)]*\))?:\s*//')
+              FEATURES="${FEATURES}- ${desc}\n"
+            elif echo "$line" | grep -qiE "^fix(\(.+\))?:"; then
+              desc=$(echo "$line" | sed -E 's/^fix(\([^)]*\))?:\s*//')
+              FIXES="${FIXES}- ${desc}\n"
+            elif echo "$line" | grep -qiE "^(docs|style|refactor|perf|test|build|ci|chore|revert)(\(.+\))?:"; then
+              desc=$(echo "$line" | sed -E 's/^(docs|style|refactor|perf|test|build|ci|chore|revert)(\([^)]*\))?:\s*//')
+              OTHERS="${OTHERS}- ${desc}\n"
+            else
+              # 没有前缀的 commit（如中文描述）
+              OTHERS="${OTHERS}- ${line}\n"
+            fi
+          done <<< "$COMMITS"
+
+          # 组装 changelog
+          CHANGELOG=""
+
+          if [ -n "$FEATURES" ]; then
+            CHANGELOG="${CHANGELOG}### ✨ 新功能\n\n${FEATURES}\n"
+          fi
+
+          if [ -n "$FIXES" ]; then
+            CHANGELOG="${CHANGELOG}### 🐛 修复\n\n${FIXES}\n"
+          fi
+
+          if [ -n "$OTHERS" ]; then
+            CHANGELOG="${CHANGELOG}### 🔧 其他\n\n${OTHERS}\n"
+          fi
+
+          # 添加版本对比链接
+          if [ -n "$PREVIOUS_TAG" ]; then
+            CHANGELOG="${CHANGELOG}**完整更新记录**: https://github.com/${{ github.repository }}/compare/${PREVIOUS_TAG}...v${{ env.app_version }}"
+          fi
+
+          # 写入环境变量
+          echo "CHANGELOG<<EOF" >> $GITHUB_ENV
+          echo -e "$CHANGELOG" >> $GITHUB_ENV
+          echo "EOF" >> $GITHUB_ENV
+
       - name: Get existing release body
         id: get_release_body
         continue-on-error: true
@@ -73,9 +147,17 @@ jobs:
           release_body=$(curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
             "https://api.github.com/repos/${{ github.repository }}/releases/tags/v${{ env.app_version }}" | \
             jq -r '.body // ""')
-          echo "RELEASE_BODY<<EOF" >> $GITHUB_ENV
-          echo "$release_body" >> $GITHUB_ENV
-          echo "EOF" >> $GITHUB_ENV
+
+          # 如果已有手动编写的 release body，则保留；否则使用自动生成的 changelog
+          if [ -n "$release_body" ] && [ "$release_body" != "null" ] && [ "$release_body" != "" ]; then
+            echo "RELEASE_BODY<<EOF" >> $GITHUB_ENV
+            echo "$release_body" >> $GITHUB_ENV
+            echo "EOF" >> $GITHUB_ENV
+          else
+            echo "RELEASE_BODY<<EOF" >> $GITHUB_ENV
+            echo "${{ env.CHANGELOG }}" >> $GITHUB_ENV
+            echo "EOF" >> $GITHUB_ENV
+          fi
 
       - name: Delete Release
         uses: dev-drprasad/delete-tag-and-release@v1.1