Build the frontend once per pipeline and reuse it in the dev backend image [CI]

.woodpecker/web-build.yml

@@ -7,6 +7,8 @@ clone:
     image: plugin-git
     settings:
       lfs: false
+      # [CI] 构建要算开发版本号（ci/version.sh：自最近 tag 的提交数），要拿到 tag
+      tags: true
 
 when:
   - event: pull_request
@@ -21,4 +23,10 @@ steps:
       NPM_CONFIG_CACHE: /home/justme/.npm
     commands:
       # node_modules 按锁文件哈希缓存，展示端和管理端并行构建，再检查 CSS，见 ci/web-build.sh
-      - python3 ci/guard-step.py web-build 900 bash ci/web-build.sh
+      # main 上带 [CI] 的提交：先写入开发版本号，构建完把产物交给同一条流水线的开发镜像（ci/shared-web.sh），前端只构建一次
+      - |
+        if [ "$CI_PIPELINE_EVENT" = push ] && printf '%s' "$CI_COMMIT_MESSAGE" | grep -qF '[CI]'; then
+          export WEB_PUBLISH_SHARED=1
+          bash ci/version.sh apply
+        fi
+        python3 ci/guard-step.py web-build 900 bash ci/web-build.sh