Add a "Copy to clipboard" menu to the Commit Files panel (#4271)

- **PR Description**

Add a "Copy to clipboard" menu to the Commit Files panel

This is very similar to the same menu in the Files panel, except that it
works on whatever diff is currently shown in the main view, including
range diffs either in diffing mode (shift-W), or from a range selection
of commits.

The menu has some code duplication with the existing menu in the Files
panel, but actually not so much. The first two menu items could be
unified once we have generalized the filetrees, but these are pretty
trivial; the other two menu items are sufficiently different that
unifying them is not practical, I think.

Fixes #4254.

Author: stefanhaller

docs/keybindings/Keybindings_en.md

@@ -56,6 +56,7 @@ _Legend: `<c-b>` means ctrl+b, `<a-b>` means alt+b, `B` means shift+b_
 | Key | Action | Info |
 |-----|--------|-------------|
 | `` <c-o> `` | Copy path to clipboard |  |
+| `` y `` | Copy to clipboard |  |
 | `` c `` | Checkout | Checkout file. This replaces the file in your working tree with the version from the selected commit. |
 | `` d `` | Remove | Discard this commit's changes to this file. This runs an interactive rebase in the background, so you may get a merge conflict if a later commit also changes this file. |
 | `` o `` | Open file | Open file in default application. |

docs/keybindings/Keybindings_ja.md

@@ -134,6 +134,7 @@ If you would instead like to start an interactive rebase from the selected commi
 | Key | Action | Info |
 |-----|--------|-------------|
 | `` <c-o> `` | ファイル名をクリップボードにコピー |  |
+| `` y `` | Copy to clipboard |  |
 | `` c `` | チェックアウト | Checkout file. This replaces the file in your working tree with the version from the selected commit. |
 | `` d `` | Remove | Discard this commit's changes to this file. This runs an interactive rebase in the background, so you may get a merge conflict if a later commit also changes this file. |
 | `` o `` | ファイルを開く | Open file in default application. |

docs/keybindings/Keybindings_ko.md

@@ -299,6 +299,7 @@ If you would instead like to start an interactive rebase from the selected commi
 | Key | Action | Info |
 |-----|--------|-------------|
 | `` <c-o> `` | 파일명을 클립보드에 복사 |  |
+| `` y `` | 클립보드에 복사 |  |
 | `` c `` | 체크아웃 | Checkout file |
 | `` d `` | Remove | Discard this commit's changes to this file |
 | `` o `` | 파일 닫기 | Open file in default application. |

docs/keybindings/Keybindings_nl.md

@@ -129,6 +129,7 @@ _Legend: `<c-b>` means ctrl+b, `<a-b>` means alt+b, `B` means shift+b_
 | Key | Action | Info |
 |-----|--------|-------------|
 | `` <c-o> `` | Kopieer de bestandsnaam naar het klembord |  |
+| `` y `` | Copy to clipboard |  |
 | `` c `` | Uitchecken | Bestand uitchecken |
 | `` d `` | Remove | Uitsluit deze commit zijn veranderingen aan dit bestand |
 | `` o `` | Open bestand | Open file in default application. |

docs/keybindings/Keybindings_pl.md

@@ -238,6 +238,7 @@ Jeśli chcesz zamiast tego rozpocząć interaktywny rebase od wybranego commita,
 | Key | Action | Info |
 |-----|--------|-------------|
 | `` <c-o> `` | Kopiuj ścieżkę do schowka |  |
+| `` y `` | Kopiuj do schowka |  |
 | `` c `` | Przełącz | Przełącz plik. Zastępuje plik w twoim drzewie roboczym wersją z wybranego commita. |
 | `` d `` | Usuń | Odrzuć zmiany w tym pliku z tego commita. Uruchamia interaktywny rebase w tle, więc możesz otrzymać konflikt scalania, jeśli późniejszy commit również zmienia ten plik. |
 | `` o `` | Otwórz plik | Otwórz plik w domyślnej aplikacji. |

docs/keybindings/Keybindings_pt.md

@@ -135,6 +135,7 @@ Veja a documentação:
 | Key | Action | Info |
 |-----|--------|-------------|
 | `` <c-o> `` | Copy path to clipboard |  |
+| `` y `` | Copy to clipboard |  |
 | `` c `` | Verificar | Checkout file. This replaces the file in your working tree with the version from the selected commit. |
 | `` d `` | Remove | Discard this commit's changes to this file. This runs an interactive rebase in the background, so you may get a merge conflict if a later commit also changes this file. |
 | `` o `` | Abrir arquivo | Abrir arquivo no aplicativo padrão. |

docs/keybindings/Keybindings_ru.md

@@ -261,6 +261,7 @@ If you would instead like to start an interactive rebase from the selected commi
 | Key | Action | Info |
 |-----|--------|-------------|
 | `` <c-o> `` | Скопировать название файла в буфер обмена |  |
+| `` y `` | Copy to clipboard |  |
 | `` c `` | Переключить | Переключить файл |
 | `` d `` | Remove | Отменить изменения коммита в этом файле |
 | `` o `` | Открыть файл | Open file in default application. |

docs/keybindings/Keybindings_zh-CN.md

@@ -186,6 +186,7 @@ _图例：`<c-b>` 意味着ctrl+b, `<a-b>意味着Alt+b, `B` 意味着shift+b_
 | Key | Action | Info |
 |-----|--------|-------------|
 | `` <c-o> `` | 将文件名复制到剪贴板 |  |
+| `` y `` | 复制到剪贴板 |  |
 | `` c `` | 检出 | 检出文件 |
 | `` d `` | 删除 | 放弃对此文件的提交变更 |
 | `` o `` | 打开文件 | 使用默认程序打开该文件 |

docs/keybindings/Keybindings_zh-TW.md

@@ -210,6 +210,7 @@ If you would instead like to start an interactive rebase from the selected commi
 | Key | Action | Info |
 |-----|--------|-------------|
 | `` <c-o> `` | 複製檔案名稱到剪貼簿 |  |
+| `` y `` | 複製到剪貼簿 |  |
 | `` c `` | 檢出 | 檢出檔案 |
 | `` d `` | Remove | Discard this commit's changes to this file. This runs an interactive rebase in the background, so you may get a merge conflict if a later commit also changes this file. |
 | `` o `` | 開啟檔案 | 使用預設軟體開啟 |

pkg/gui/controllers/commits_files_controller.go

@@ -41,6 +41,12 @@ func NewCommitFilesController(
 
 func (self *CommitFilesController) GetKeybindings(opts types.KeybindingsOpts) []*types.Binding {
 	bindings := []*types.Binding{
+		{
+			Key:         opts.GetKey(opts.Config.Files.CopyFileInfoToClipboard),
+			Handler:     self.openCopyMenu,
+			Description: self.c.Tr.CopyToClipboardMenu,
+			OpensMenu:   true,
+		},
 		{
 			Key:               opts.GetKey(opts.Config.CommitFiles.CheckoutCommitFile),
 			Handler:           self.withItem(self.checkout),
@@ -181,6 +187,77 @@ func (self *CommitFilesController) onClickMain(opts gocui.ViewMouseBindingOpts)
 	return self.enterCommitFile(node, types.OnFocusOpts{ClickedWindowName: "main", ClickedViewLineIdx: opts.Y})
 }
 
+func (self *CommitFilesController) copyDiffToClipboard(path string, toastMessage string) error {
+	from, to := self.context().GetFromAndToForDiff()
+	from, reverse := self.c.Modes().Diffing.GetFromAndReverseArgsForDiff(from)
+
+	cmdObj := self.c.Git().WorkingTree.ShowFileDiffCmdObj(from, to, reverse, path, true)
+	diff, err := cmdObj.RunWithOutput()
+	if err != nil {
+		return err
+	}
+	if err := self.c.OS().CopyToClipboard(diff); err != nil {
+		return err
+	}
+	self.c.Toast(toastMessage)
+	return nil
+}
+
+func (self *CommitFilesController) openCopyMenu() error {
+	node := self.context().GetSelected()
+
+	copyNameItem := &types.MenuItem{
+		Label: self.c.Tr.CopyFileName,
+		OnPress: func() error {
+			if err := self.c.OS().CopyToClipboard(node.Name()); err != nil {
+				return err
+			}
+			self.c.Toast(self.c.Tr.FileNameCopiedToast)
+			return nil
+		},
+		DisabledReason: self.require(self.singleItemSelected())(),
+		Key:            'n',
+	}
+	copyPathItem := &types.MenuItem{
+		Label: self.c.Tr.CopyFilePath,
+		OnPress: func() error {
+			if err := self.c.OS().CopyToClipboard(node.Path); err != nil {
+				return err
+			}
+			self.c.Toast(self.c.Tr.FilePathCopiedToast)
+			return nil
+		},
+		DisabledReason: self.require(self.singleItemSelected())(),
+		Key:            'p',
+	}
+	copyFileDiffItem := &types.MenuItem{
+		Label: self.c.Tr.CopySelectedDiff,
+		OnPress: func() error {
+			return self.copyDiffToClipboard(node.GetPath(), self.c.Tr.FileDiffCopiedToast)
+		},
+		DisabledReason: self.require(self.singleItemSelected())(),
+		Key:            's',
+	}
+	copyAllDiff := &types.MenuItem{
+		Label: self.c.Tr.CopyAllFilesDiff,
+		OnPress: func() error {
+			return self.copyDiffToClipboard(".", self.c.Tr.AllFilesDiffCopiedToast)
+		},
+		DisabledReason: self.require(self.itemsSelected())(),
+		Key:            'a',
+	}
+
+	return self.c.Menu(types.CreateMenuOptions{
+		Title: self.c.Tr.CopyToClipboardMenu,
+		Items: []*types.MenuItem{
+			copyNameItem,
+			copyPathItem,
+			copyFileDiffItem,
+			copyAllDiff,
+		},
+	})
+}
+
 func (self *CommitFilesController) checkout(node *filetree.CommitFileNode) error {
 	self.c.LogAction(self.c.Tr.Actions.CheckoutFile)
 	if err := self.c.Git().WorkingTree.CheckoutFile(self.context().GetRef().RefName(), node.GetPath()); err != nil {