From efc48c36ff565d6333cc6894bd75b8be2259754e Mon Sep 17 00:00:00 2001
From: Aleksandr Denisovich <66480963+saneks222@users.noreply.github.com>
Date: Thu, 2 Oct 2025 23:08:11 +0500
Subject: [PATCH] Added button to copy file name in PR files (#35509)

The merge request file viewer has a button for copying the file path,
but it is not always convenient. Often, you only want to copy the file
name, which is currently not possible. This change request adds this
capability.

---------

Signed-off-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: a.kiselev <a.kiselev@reglab.ru>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
---
 options/locale/locale_en-US.ini | 1 +
 services/gitdiff/gitdiff.go     | 9 +++++++++
 templates/repo/diff/box.tmpl    | 1 +
 3 files changed, 11 insertions(+)

diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index b3eb7b1f4a..64bc3b1871 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -109,6 +109,7 @@ copy_path = Copy path
 copy_success = Copied!
 copy_error = Copy failed
 copy_type_unsupported = This file type cannot be copied
+copy_filename = Copy filename
 
 write = Write
 preview = Preview
diff --git a/services/gitdiff/gitdiff.go b/services/gitdiff/gitdiff.go
index 1cc5ce66f8..2de87f9979 100644
--- a/services/gitdiff/gitdiff.go
+++ b/services/gitdiff/gitdiff.go
@@ -13,6 +13,7 @@ import (
 	"html/template"
 	"io"
 	"net/url"
+	"path"
 	"sort"
 	"strings"
 	"time"
@@ -403,6 +404,14 @@ func (diffFile *DiffFile) GetDiffFileName() string {
 	return diffFile.Name
 }
 
+// GetDiffFileBaseName returns the short name of the diff file, or its short old name in case it was deleted
+func (diffFile *DiffFile) GetDiffFileBaseName() string {
+	if diffFile.Name == "" {
+		return path.Base(diffFile.OldName)
+	}
+	return path.Base(diffFile.Name)
+}
+
 func (diffFile *DiffFile) ShouldBeHidden() bool {
 	return diffFile.IsGenerated || diffFile.IsViewed
 }
diff --git a/templates/repo/diff/box.tmpl b/templates/repo/diff/box.tmpl
index e4d1efac57..7eb96e1ddc 100644
--- a/templates/repo/diff/box.tmpl
+++ b/templates/repo/diff/box.tmpl
@@ -143,6 +143,7 @@
 											<button class="unescape-button item" data-unicode-content-selector="#diff-{{$file.NameHash}}">{{ctx.Locale.Tr "repo.unescape_control_characters"}}</button>
 											<button class="escape-button tw-hidden item" data-unicode-content-selector="#diff-{{$file.NameHash}}">{{ctx.Locale.Tr "repo.escape_control_characters"}}</button>
 										{{end}}
+										<button class="item" data-clipboard-text="{{$file.GetDiffFileBaseName}}">{{ctx.Locale.Tr "copy_filename"}}</button>
 										{{if not $.PageIsWiki}}
 											{{if $file.IsDeleted}}
 												<a class="item" rel="nofollow" href="{{$.BeforeSourcePath}}/{{PathEscapeSegments .Name}}">{{ctx.Locale.Tr "repo.diff.view_file"}}</a>