From 4c82485424adb0fcf72cf9cde74596a7f0f54ada Mon Sep 17 00:00:00 2001
From: Jimmy Praet <jimmy.praet@telenet.be>
Date: Thu, 18 Feb 2021 03:45:49 +0100
Subject: [PATCH] #14699 Make branch names in PR description clickable (#14716)

---
 models/pull.go                       | 25 +++++++++++++++++++++++++
 routers/repo/pull.go                 |  2 ++
 templates/repo/issue/view_title.tmpl | 20 ++++++++++++++------
 3 files changed, 41 insertions(+), 6 deletions(-)

diff --git a/models/pull.go b/models/pull.go
index 0d4691aac94b..0eba65db4fad 100644
--- a/models/pull.go
+++ b/models/pull.go
@@ -13,6 +13,7 @@ import (
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
 )
 
 // PullRequestType defines pull request type
@@ -638,3 +639,27 @@ func (pr *PullRequest) updateCommitDivergence(e Engine, ahead, behind int) error
 func (pr *PullRequest) IsSameRepo() bool {
 	return pr.BaseRepoID == pr.HeadRepoID
 }
+
+// GetBaseBranchHTMLURL returns the HTML URL of the base branch
+func (pr *PullRequest) GetBaseBranchHTMLURL() string {
+	if err := pr.LoadBaseRepo(); err != nil {
+		log.Error("LoadBaseRepo: %v", err)
+		return ""
+	}
+	if pr.BaseRepo == nil {
+		return ""
+	}
+	return pr.BaseRepo.HTMLURL() + "/src/branch/" + util.PathEscapeSegments(pr.BaseBranch)
+}
+
+// GetHeadBranchHTMLURL returns the HTML URL of the head branch
+func (pr *PullRequest) GetHeadBranchHTMLURL() string {
+	if err := pr.LoadHeadRepo(); err != nil {
+		log.Error("LoadHeadRepo: %v", err)
+		return ""
+	}
+	if pr.HeadRepo == nil {
+		return ""
+	}
+	return pr.HeadRepo.HTMLURL() + "/src/branch/" + util.PathEscapeSegments(pr.HeadBranch)
+}
diff --git a/routers/repo/pull.go b/routers/repo/pull.go
index d3dd9e4fb544..15af2a2a3f33 100644
--- a/routers/repo/pull.go
+++ b/routers/repo/pull.go
@@ -301,6 +301,8 @@ func setMergeTarget(ctx *context.Context, pull *models.PullRequest) {
 		ctx.Data["HeadTarget"] = pull.MustHeadUserName() + "/" + pull.HeadRepo.Name + ":" + pull.HeadBranch
 	}
 	ctx.Data["BaseTarget"] = pull.BaseBranch
+	ctx.Data["HeadBranchHTMLURL"] = pull.GetHeadBranchHTMLURL()
+	ctx.Data["BaseBranchHTMLURL"] = pull.GetBaseBranchHTMLURL()
 }
 
 // PrepareMergedViewPullInfo show meta information for a merged pull request view page
diff --git a/templates/repo/issue/view_title.tmpl b/templates/repo/issue/view_title.tmpl
index 8956bf5e65d1..2f2787d67ceb 100644
--- a/templates/repo/issue/view_title.tmpl
+++ b/templates/repo/issue/view_title.tmpl
@@ -30,23 +30,31 @@
 	{{end}}
 
 	{{if .Issue.IsPull}}
+		{{$headHref := .HeadTarget|Escape}}
+		{{if .HeadBranchHTMLURL}}
+			{{$headHref = printf "<a href=\"%s\">%s</a>" .HeadBranchHTMLURL $headHref}}
+		{{end}}
+		{{$baseHref := .BaseTarget|Escape}}
+		{{if .BaseBranchHTMLURL}}
+			{{$baseHref = printf "<a href=\"%s\">%s</a>" .BaseBranchHTMLURL $baseHref}}
+		{{end}}
 		{{if .Issue.PullRequest.HasMerged}}
 			{{ $mergedStr:= TimeSinceUnix .Issue.PullRequest.MergedUnix $.Lang }}
 			{{if .Issue.OriginalAuthor }}
 				{{.Issue.OriginalAuthor}}
-				<span class="pull-desc">{{$.i18n.Tr "repo.pulls.merged_title_desc" .NumCommits (.HeadTarget|Escape) (.BaseTarget|Escape) $mergedStr | Str2html}}</span>
+				<span class="pull-desc">{{$.i18n.Tr "repo.pulls.merged_title_desc" .NumCommits $headHref $baseHref $mergedStr | Str2html}}</span>
 			{{else}}
 				<a {{if gt .Issue.PullRequest.Merger.ID 0}}href="{{.Issue.PullRequest.Merger.HomeLink}}"{{end}}>{{.Issue.PullRequest.Merger.GetDisplayName}}</a>
-				<span class="pull-desc">{{$.i18n.Tr "repo.pulls.merged_title_desc" .NumCommits (.HeadTarget|Escape) (.BaseTarget|Escape) $mergedStr | Str2html}}</span>
+				<span class="pull-desc">{{$.i18n.Tr "repo.pulls.merged_title_desc" .NumCommits $headHref $baseHref $mergedStr | Str2html}}</span>
 			{{end}}
 		{{else}}
 			{{if .Issue.OriginalAuthor }}
-				<span id="pull-desc" class="pull-desc">{{.Issue.OriginalAuthor}} {{$.i18n.Tr "repo.pulls.title_desc" .NumCommits (.HeadTarget|Escape) (.BaseTarget|Escape) | Str2html}}</span>
+				<span id="pull-desc" class="pull-desc">{{.Issue.OriginalAuthor}} {{$.i18n.Tr "repo.pulls.title_desc" .NumCommits $headHref $baseHref | Str2html}}</span>
 			{{else}}
 				<span id="pull-desc" class="pull-desc">
-				 <a {{if gt .Issue.Poster.ID 0}}href="{{.Issue.Poster.HomeLink}}"{{end}}>{{.Issue.Poster.GetDisplayName}}</a>
-				 {{$.i18n.Tr "repo.pulls.title_desc" .NumCommits (.HeadTarget|Escape) (.BaseTarget|Escape) | Str2html}}
-					</span>
+					<a {{if gt .Issue.Poster.ID 0}}href="{{.Issue.Poster.HomeLink}}"{{end}}>{{.Issue.Poster.GetDisplayName}}</a>
+					{{$.i18n.Tr "repo.pulls.title_desc" .NumCommits $headHref $baseHref | Str2html}}
+				</span>
 			{{end}}
 			<span id="pull-desc-edit" style="display: none">
 								<div class="ui floating filter dropdown">