From 581b9803e95bbe0684fd345dc9df05f38912e954 Mon Sep 17 00:00:00 2001
From: zhangruijie <2542201615@qq.com>
Date: Thu, 18 Jun 2026 10:44:30 +0800
Subject: [PATCH] =?UTF-8?q?ci:=20=E6=B7=BB=E5=8A=A0=20PR=20=E7=9B=AE?=
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- PR 目标为 main 且来源非 dev：自动关闭并评论
- PR 目标非 main 且非 dev：自动将目标分支改为 dev

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 .github/workflows/pr-policy.yml | 50 +++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 .github/workflows/pr-policy.yml

diff --git a/.github/workflows/pr-policy.yml b/.github/workflows/pr-policy.yml
new file mode 100644
index 0000000..01431d6
--- /dev/null
+++ b/.github/workflows/pr-policy.yml
@@ -0,0 +1,50 @@
+name: PR Base Branch Policy
+
+on:
+  pull_request:
+    types: [opened, reopened]
+
+permissions:
+  pull-requests: write
+  contents: read
+
+jobs:
+  enforce-base:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Block non-dev PR targeting main
+        if: github.event.pull_request.base.ref == 'main' && github.event.pull_request.head.ref != 'dev'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            await github.rest.pulls.update({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: context.payload.pull_request.number,
+              state: 'closed'
+            });
+            await github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.payload.pull_request.number,
+              body: `🚫 **PR 已自动关闭**\n\n\`main\` 分支只接受来自 \`dev\` 的 PR。\n\n请将目标分支改为 \`dev\`，或者从 \`dev\` 分支发起 PR 到 \`main\`。`
+            });
+            core.setFailed('PR targeting main must come from dev branch');
+
+      - name: Redirect non-dev PR to target dev
+        if: github.event.pull_request.base.ref != 'main' && github.event.pull_request.base.ref != 'dev'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            await github.rest.pulls.update({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: context.payload.pull_request.number,
+              base: 'dev'
+            });
+            await github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.payload.pull_request.number,
+              body: `ℹ️ **目标分支已自动调整为 \`dev\`**\n\n功能分支的 PR 默认合并到 \`dev\`，已自动将目标分支从 \`${context.payload.pull_request.base.ref}\` 修改为 \`dev\`。`
+            });