From d41a05e83ecb44f323e13a64164d8d31d7c0a383 Mon Sep 17 00:00:00 2001
From: Linus Groh <mail@linusgroh.de>
Date: Thu, 31 Aug 2023 23:14:12 +0200
Subject: [PATCH 1/2] Move Open Graph meta tags into a separate template

---
 templates/base/head.tmpl           | 37 +-----------------------------
 templates/base/head_opengraph.tmpl | 36 +++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+), 36 deletions(-)
 create mode 100644 templates/base/head_opengraph.tmpl

diff --git a/templates/base/head.tmpl b/templates/base/head.tmpl
index 8eebaebd704e3..c3645209cd604 100644
--- a/templates/base/head.tmpl
+++ b/templates/base/head.tmpl
@@ -25,42 +25,7 @@
 			.ui.secondary.menu .dropdown.item > .menu { margin-top: 0; }
 		</style>
 	</noscript>
-{{if .PageIsUserProfile}}
-	<meta property="og:title" content="{{.ContextUser.DisplayName}}">
-	<meta property="og:type" content="profile">
-	<meta property="og:image" content="{{.ContextUser.AvatarLink ctx}}">
-	<meta property="og:url" content="{{.ContextUser.HTMLURL}}">
-	{{if .ContextUser.Description}}
-		<meta property="og:description" content="{{.ContextUser.Description}}">
-	{{end}}
-{{else if .Repository}}
-	{{if .Issue}}
-		<meta property="og:title" content="{{.Issue.Title}}">
-		<meta property="og:url" content="{{.Issue.HTMLURL}}">
-		{{if .Issue.Content}}
-			<meta property="og:description" content="{{.Issue.Content}}">
-		{{end}}
-	{{else}}
-		<meta property="og:title" content="{{.Repository.Name}}">
-		<meta property="og:url" content="{{.Repository.HTMLURL}}">
-		{{if .Repository.Description}}
-			<meta property="og:description" content="{{.Repository.Description}}">
-		{{end}}
-	{{end}}
-	<meta property="og:type" content="object">
-	{{if (.Repository.AvatarLink ctx)}}
-		<meta property="og:image" content="{{.Repository.AvatarLink ctx}}">
-	{{else}}
-		<meta property="og:image" content="{{.Repository.Owner.AvatarLink ctx}}">
-	{{end}}
-{{else}}
-	<meta property="og:title" content="{{AppName}}">
-	<meta property="og:type" content="website">
-	<meta property="og:image" content="{{AssetUrlPrefix}}/img/logo.png">
-	<meta property="og:url" content="{{AppUrl}}">
-	<meta property="og:description" content="{{MetaDescription}}">
-{{end}}
-	<meta property="og:site_name" content="{{AppName}}">
+	{{template "base/head_opengraph" .}}
 	{{template "base/head_style" .}}
 	{{template "custom/header" .}}
 </head>
diff --git a/templates/base/head_opengraph.tmpl b/templates/base/head_opengraph.tmpl
new file mode 100644
index 0000000000000..3eb584bb8df5d
--- /dev/null
+++ b/templates/base/head_opengraph.tmpl
@@ -0,0 +1,36 @@
+{{if .PageIsUserProfile}}
+	<meta property="og:title" content="{{.ContextUser.DisplayName}}">
+	<meta property="og:type" content="profile">
+	<meta property="og:image" content="{{.ContextUser.AvatarLink ctx}}">
+	<meta property="og:url" content="{{.ContextUser.HTMLURL}}">
+	{{if .ContextUser.Description}}
+		<meta property="og:description" content="{{.ContextUser.Description}}">
+	{{end}}
+{{else if .Repository}}
+	{{if .Issue}}
+		<meta property="og:title" content="{{.Issue.Title}}">
+		<meta property="og:url" content="{{.Issue.HTMLURL}}">
+		{{if .Issue.Content}}
+			<meta property="og:description" content="{{.Issue.Content}}">
+		{{end}}
+	{{else}}
+		<meta property="og:title" content="{{.Repository.Name}}">
+		<meta property="og:url" content="{{.Repository.HTMLURL}}">
+		{{if .Repository.Description}}
+			<meta property="og:description" content="{{.Repository.Description}}">
+		{{end}}
+	{{end}}
+	<meta property="og:type" content="object">
+	{{if (.Repository.AvatarLink ctx)}}
+		<meta property="og:image" content="{{.Repository.AvatarLink ctx}}">
+	{{else}}
+		<meta property="og:image" content="{{.Repository.Owner.AvatarLink ctx}}">
+	{{end}}
+{{else}}
+	<meta property="og:title" content="{{AppName}}">
+	<meta property="og:type" content="website">
+	<meta property="og:image" content="{{AssetUrlPrefix}}/img/logo.png">
+	<meta property="og:url" content="{{AppUrl}}">
+	<meta property="og:description" content="{{MetaDescription}}">
+{{end}}
+<meta property="og:site_name" content="{{AppName}}">

From 0f3c37bfeca965468a4f4dc51a150ab7c5007d20 Mon Sep 17 00:00:00 2001
From: Linus Groh <mail@linusgroh.de>
Date: Fri, 1 Sep 2023 00:27:59 +0200
Subject: [PATCH 2/2] Customize Open Graph metadata for commit and file URLs

---
 templates/base/head_opengraph.tmpl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/templates/base/head_opengraph.tmpl b/templates/base/head_opengraph.tmpl
index 3eb584bb8df5d..fc3958b6b6d55 100644
--- a/templates/base/head_opengraph.tmpl
+++ b/templates/base/head_opengraph.tmpl
@@ -13,6 +13,12 @@
 		{{if .Issue.Content}}
 			<meta property="og:description" content="{{.Issue.Content}}">
 		{{end}}
+	{{else if or .PageIsDiff .IsViewFile}}
+		<meta property="og:title" content="{{.Title}}">
+		<meta property="og:url" content="{{AppUrl}}{{.Link}}">
+		{{if and .PageIsDiff (IsMultilineCommitMessage .Commit.Message)}}
+			<meta property="og:description" content="{{RenderCommitBody $.Context .Commit.Message $.RepoLink $.Repository.ComposeMetas}}">
+		{{end}}
 	{{else}}
 		<meta property="og:title" content="{{.Repository.Name}}">
 		<meta property="og:url" content="{{.Repository.HTMLURL}}">