From 637c3ec5d82f9d727724cc362aea37eeb2f64b40 Mon Sep 17 00:00:00 2001
From: a1012112796 <1012112796@qq.com>
Date: Tue, 4 Jan 2022 03:45:58 +0800
Subject: Don't delete branch if other PRs with this branch are open (#18164)

fix #18149

Signed-off-by: a1012112796 <1012112796@qq.com>
---
 routers/api/v1/repo/pull.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'routers/api')

diff --git a/routers/api/v1/repo/pull.go b/routers/api/v1/repo/pull.go
index 2b7280d39b..8297e35a17 100644
--- a/routers/api/v1/repo/pull.go
+++ b/routers/api/v1/repo/pull.go
@@ -873,6 +873,17 @@ func MergePullRequest(ctx *context.APIContext) {
 	log.Trace("Pull request merged: %d", pr.ID)
 
 	if form.DeleteBranchAfterMerge {
+		// Don't cleanup when there are other PR's that use this branch as head branch.
+		exist, err := models.HasUnmergedPullRequestsByHeadInfo(pr.HeadRepoID, pr.HeadBranch)
+		if err != nil {
+			ctx.ServerError("HasUnmergedPullRequestsByHeadInfo", err)
+			return
+		}
+		if exist {
+			ctx.Status(http.StatusOK)
+			return
+		}
+
 		var headRepo *git.Repository
 		if ctx.Repo != nil && ctx.Repo.Repository != nil && ctx.Repo.Repository.ID == pr.HeadRepoID && ctx.Repo.GitRepo != nil {
 			headRepo = ctx.Repo.GitRepo
-- 
cgit v1.2.3