feat: introduce a copy menu into the file view

8 files changed, 351 insertions, 0 deletions

diff --git a/pkg/commands/git_commands/diff.go b/pkg/commands/git_commands/diff.go
index 2f0e1b547..1e5f98244 100644
--- a/pkg/commands/git_commands/diff.go
+++ b/pkg/commands/git_commands/diff.go
@@ -17,3 +17,26 @@ func (self *DiffCommands) DiffCmdObj(diffArgs []string) oscommands.ICmdObj {
 		NewGitCmd("diff").Arg("--submodule", "--no-ext-diff", "--color").Arg(diffArgs...).ToArgv(),
 	)
 }
+
+func (self *DiffCommands) internalDiffCmdObj(diffArgs ...string) *GitCommandBuilder {
+	return NewGitCmd("diff").
+		Arg("--no-ext-diff", "--no-color").
+		Arg(diffArgs...)
+}
+
+func (self *DiffCommands) GetPathDiff(path string, staged bool) (string, error) {
+	return self.cmd.New(
+		self.internalDiffCmdObj().
+			ArgIf(staged, "--staged").
+			Arg(path).
+			ToArgv(),
+	).RunWithOutput()
+}
+
+func (self *DiffCommands) GetAllDiff(staged bool) (string, error) {
+	return self.cmd.New(
+		self.internalDiffCmdObj().
+			ArgIf(staged, "--staged").
+			ToArgv(),
+	).RunWithOutput()
+}
diff --git a/pkg/config/user_config.go b/pkg/config/user_config.go
index 1ae89e5d6..70b81acca 100644
--- a/pkg/config/user_config.go
+++ b/pkg/config/user_config.go
@@ -371,6 +371,7 @@ type KeybindingFilesConfig struct {
 	ToggleTreeView           string `yaml:"toggleTreeView"`
 	OpenMergeTool            string `yaml:"openMergeTool"`
 	OpenStatusFilter         string `yaml:"openStatusFilter"`
+	CopyFileInfoToClipboard  string `yaml:"copyFileInfoToClipboard"`
 }
 
 type KeybindingBranchesConfig struct {
@@ -763,6 +764,7 @@ func GetDefaultConfig() *UserConfig {
 				OpenMergeTool:            "M",
 				OpenStatusFilter:         "<c-b>",
 				ConfirmDiscard:           "x",
+				CopyFileInfoToClipboard:  "y",
 			},
 			Branches: KeybindingBranchesConfig{
 				CopyPullRequestURL:     "<c-y>",
diff --git a/pkg/gui/controllers/files_controller.go b/pkg/gui/controllers/files_controller.go
index 75fa52da4..733487d5a 100644
--- a/pkg/gui/controllers/files_controller.go
+++ b/pkg/gui/controllers/files_controller.go
@@ -38,6 +38,12 @@ func (self *FilesController) GetKeybindings(opts types.KeybindingsOpts) []*types
 			Description: self.c.Tr.FileFilter,
 		},
 		{
+			Key:         opts.GetKey(opts.Config.Files.CopyFileInfoToClipboard),
+			Handler:     self.openCopyMenu,
+			Description: self.c.Tr.CopyToClipboardMenu,
+			OpensMenu:   true,
+		},
+		{
 			Key:         opts.GetKey(opts.Config.Files.CommitChanges),
 			Handler:     self.c.Helpers().WorkingTree.HandleCommitPress,
 			Description: self.c.Tr.CommitChanges,
@@ -748,6 +754,103 @@ func (self *FilesController) createStashMenu() error {
 	})
 }
 
+func (self *FilesController) 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 self.c.Error(err)
+			}
+			self.c.Toast(self.c.Tr.FileNameCopiedToast)
+			return nil
+		},
+		Key: 'n',
+	}
+	copyPathItem := &types.MenuItem{
+		Label: self.c.Tr.CopyFilePath,
+		OnPress: func() error {
+			if err := self.c.OS().CopyToClipboard(node.Path); err != nil {
+				return self.c.Error(err)
+			}
+			self.c.Toast(self.c.Tr.FilePathCopiedToast)
+			return nil
+		},
+		Key: 'p',
+	}
+	copyFileDiffItem := &types.MenuItem{
+		Label:   self.c.Tr.CopySelectedDiff,
+		Tooltip: self.c.Tr.CopyFileDiffTooltip,
+		OnPress: func() error {
+			path := self.context().GetSelectedPath()
+			hasStaged := self.hasPathStagedChanges(node)
+			diff, err := self.c.Git().Diff.GetPathDiff(path, hasStaged)
+			if err != nil {
+				return self.c.Error(err)
+			}
+			if err := self.c.OS().CopyToClipboard(diff); err != nil {
+				return self.c.Error(err)
+			}
+			self.c.Toast(self.c.Tr.FileDiffCopiedToast)
+			return nil
+		},
+		Key: 's',
+	}
+	copyAllDiff := &types.MenuItem{
+		Label:   self.c.Tr.CopyAllFilesDiff,
+		Tooltip: self.c.Tr.CopyFileDiffTooltip,
+		OnPress: func() error {
+			hasStaged := self.c.Helpers().WorkingTree.AnyStagedFiles()
+			diff, err := self.c.Git().Diff.GetAllDiff(hasStaged)
+			if err != nil {
+				return self.c.Error(err)
+			}
+			if err := self.c.OS().CopyToClipboard(diff); err != nil {
+				return self.c.Error(err)
+			}
+			self.c.Toast(self.c.Tr.AllFilesDiffCopiedToast)
+			return nil
+		},
+		Key: 'a',
+	}
+
+	if node == nil {
+		copyNameItem.DisabledReason = self.c.Tr.NoContentToCopyError
+		copyPathItem.DisabledReason = self.c.Tr.NoContentToCopyError
+		copyFileDiffItem.DisabledReason = self.c.Tr.NoContentToCopyError
+	}
+	if node != nil && !node.GetHasStagedOrTrackedChanges() {
+		copyFileDiffItem.DisabledReason = self.c.Tr.NoContentToCopyError
+	}
+	if !self.anyStagedOrTrackedFile() {
+		copyAllDiff.DisabledReason = self.c.Tr.NoContentToCopyError
+	}
+
+	return self.c.Menu(types.CreateMenuOptions{
+		Title: self.c.Tr.CopyToClipboardMenu,
+		Items: []*types.MenuItem{
+			copyNameItem,
+			copyPathItem,
+			copyFileDiffItem,
+			copyAllDiff,
+		},
+	})
+}
+
+func (self *FilesController) anyStagedOrTrackedFile() bool {
+	if !self.c.Helpers().WorkingTree.AnyStagedFiles() {
+		return self.c.Helpers().WorkingTree.AnyTrackedFiles()
+	}
+	return true
+}
+
+func (self *FilesController) hasPathStagedChanges(node *filetree.FileNode) bool {
+	return node.SomeFile(func(t *models.File) bool {
+		return t.HasStagedChanges
+	})
+}
+
 func (self *FilesController) stash() error {
 	return self.handleStashSave(self.c.Git().Stash.Push, self.c.Tr.Actions.StashAllChanges)
 }
diff --git a/pkg/gui/filetree/file_node.go b/pkg/gui/filetree/file_node.go
index abfdbafe6..d9b28d1ca 100644
--- a/pkg/gui/filetree/file_node.go
+++ b/pkg/gui/filetree/file_node.go
@@ -30,6 +30,15 @@ func (self *FileNode) GetHasUnstagedChanges() bool {
 	return self.SomeFile(func(file *models.File) bool { return file.HasUnstagedChanges })
 }
 
+func (self *FileNode) GetHasStagedOrTrackedChanges() bool {
+	if !self.GetHasStagedChanges() {
+		return self.SomeFile(func(t *models.File) bool {
+			return t.Tracked
+		})
+	}
+	return true
+}
+
 func (self *FileNode) GetHasStagedChanges() bool {
 	return self.SomeFile(func(file *models.File) bool { return file.HasStagedChanges })
 }
diff --git a/pkg/gui/filetree/node.go b/pkg/gui/filetree/node.go
index 3c125bc7d..efb64f649 100644
--- a/pkg/gui/filetree/node.go
+++ b/pkg/gui/filetree/node.go
@@ -1,6 +1,8 @@
 package filetree
 
 import (
+	"path"
+
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
 	"github.com/samber/lo"
@@ -300,3 +302,7 @@ func (self *Node[T]) ID() string {
 func (self *Node[T]) Description() string {
 	return self.GetPath()
 }
+
+func (self *Node[T]) Name() string {
+	return path.Base(self.Path)
+}
diff --git a/pkg/i18n/english.go b/pkg/i18n/english.go
index c940eea6f..a70d08ee7 100644
--- a/pkg/i18n/english.go
+++ b/pkg/i18n/english.go
@@ -52,6 +52,17 @@ type TranslationSet struct {
 	Pull                                string
 	Scroll                              string
 	FileFilter                          string
+	CopyToClipboardMenu                 string
+	CopyFileName                        string
+	CopyFilePath                        string
+	CopyFileDiffTooltip                 string
+	CopySelectedDiff                    string
+	CopyAllFilesDiff                    string
+	NoContentToCopyError                string
+	FileNameCopiedToast                 string
+	FilePathCopiedToast                 string
+	FileDiffCopiedToast                 string
+	AllFilesDiffCopiedToast             string
 	FilterStagedFiles                   string
 	FilterUnstagedFiles                 string
 	ResetFilter                         string
@@ -851,6 +862,17 @@ func EnglishTranslationSet() TranslationSet {
 		CantCheckoutBranchWhilePulling:      "You cannot checkout another branch while pulling the current branch",
 		CantPullOrPushSameBranchTwice:       "You cannot push or pull a branch while it is already being pushed or pulled",
 		FileFilter:                          "Filter files by status",
+		CopyToClipboardMenu:                 "Copy to clipboard",
+		CopyFileName:                        "File name",
+		CopyFilePath:                        "Path",
+		CopyFileDiffTooltip:                 "If there are staged items, this command considers only them. Otherwise, it considers all the unstaged ones.",
+		CopySelectedDiff:                    "Diff of selected file",
+		CopyAllFilesDiff:                    "Diff of all files",
+		NoContentToCopyError:                "Nothing to copy",
+		FileNameCopiedToast:                 "File name copied to clipboard",
+		FilePathCopiedToast:                 "File path copied to clipboard",
+		FileDiffCopiedToast:                 "File diff copied to clipboard",
+		AllFilesDiffCopiedToast:             "All files diff copied to clipboard",
 		FilterStagedFiles:                   "Show only staged files",
 		FilterUnstagedFiles:                 "Show only unstaged files",
 		ResetFilter:                         "Reset filter",
diff --git a/pkg/integration/tests/file/copy_menu.go b/pkg/integration/tests/file/copy_menu.go
new file mode 100644
index 000000000..f00425c96
--- /dev/null
+++ b/pkg/integration/tests/file/copy_menu.go
@@ -0,0 +1,185 @@
+package file
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+// note: this is required to simulate the clipboard during CI
+func expectClipboard(t *TestDriver, matcher *TextMatcher) {
+	defer t.Shell().DeleteFile("clipboard")
+
+	t.FileSystem().FileContent("clipboard", matcher)
+}
+
+var CopyMenu = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "The copy menu allows to copy name and diff of selected/all files",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupConfig: func(config *config.AppConfig) {
+		config.UserConfig.OS.CopyToClipboardCmd = "echo {{text}} > clipboard"
+	},
+	SetupRepo: func(shell *Shell) {},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		// Disabled item
+		t.Views().Files().
+			IsEmpty().
+			Press(keys.Files.CopyFileInfoToClipboard).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Copy to clipboard")).
+					Select(Contains("File name")).
+					Tooltip(Equals("Disabled: Nothing to copy")).
+					Confirm()
+
+				t.ExpectPopup().Alert().
+					Title(Equals("Error")).
+					Content(Equals("Nothing to copy")).
+					Confirm()
+			})
+
+		t.Shell().
+			CreateDir("dir").
+			CreateFile("dir/1-unstaged_file", "unstaged content")
+
+		// Empty content (new file)
+		t.Views().Files().
+			Press(keys.Universal.Refresh).
+			Lines(
+				Contains("dir").IsSelected(),
+				Contains("unstaged_file"),
+			).
+			SelectNextItem().
+			Press(keys.Files.CopyFileInfoToClipboard).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Copy to clipboard")).
+					Select(Contains("Diff of selected file")).
+					Tooltip(Contains("Disabled: Nothing to copy")).
+					Confirm()
+
+				t.ExpectPopup().Alert().
+					Title(Equals("Error")).
+					Content(Equals("Nothing to copy")).
+					Confirm()
+			}).
+			Press(keys.Files.CopyFileInfoToClipboard).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Copy to clipboard")).
+					Select(Contains("Diff of all files")).
+					Tooltip(Contains("Disabled: Nothing to copy")).
+					Confirm()
+
+				t.ExpectPopup().Alert().
+					Title(Equals("Error")).
+					Content(Equals("Nothing to copy")).
+					Confirm()
+			})
+
+		t.Shell().
+			GitAdd("dir/1-unstaged_file").
+			Commit("commit-unstaged").
+			UpdateFile("dir/1-unstaged_file", "unstaged content (new)").
+			CreateFileAndAdd("dir/2-staged_file", "staged content").
+			Commit("commit-staged").
+			UpdateFile("dir/2-staged_file", "staged content (new)").
+			GitAdd("dir/2-staged_file")
+
+		// Copy file name
+		t.Views().Files().
+			Press(keys.Universal.Refresh).
+			Lines(
+				Contains("dir"),
+				Contains("unstaged_file").IsSelected(),
+				Contains("staged_file"),
+			).
+			Press(keys.Files.CopyFileInfoToClipboard).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Copy to clipboard")).
+					Select(Contains("File name")).
+					Confirm()
+
+				expectClipboard(t, Contains("unstaged_file"))
+			})
+
+		// Copy file path
+		t.Views().Files().
+			Press(keys.Files.CopyFileInfoToClipboard).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Copy to clipboard")).
+					Select(Contains("Path")).
+					Confirm()
+
+				expectClipboard(t, Contains("dir/1-unstaged_file"))
+			})
+
+		// Selected path diff on a single (unstaged) file
+		t.Views().Files().
+			Press(keys.Files.CopyFileInfoToClipboard).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Copy to clipboard")).
+					Select(Contains("Diff of selected file")).
+					Tooltip(Equals("If there are staged items, this command considers only them. Otherwise, it considers all the unstaged ones.")).
+					Confirm()
+
+				expectClipboard(t, Contains("+unstaged content (new)"))
+			})
+
+		// Selected path diff with staged and unstaged files
+		t.Views().Files().
+			SelectPreviousItem().
+			Lines(
+				Contains("dir").IsSelected(),
+				Contains("unstaged_file"),
+				Contains("staged_file"),
+			).
+			Press(keys.Files.CopyFileInfoToClipboard).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Copy to clipboard")).
+					Select(Contains("Diff of selected file")).
+					Tooltip(Equals("If there are staged items, this command considers only them. Otherwise, it considers all the unstaged ones.")).
+					Confirm()
+
+				expectClipboard(t, Contains("+staged content (new)"))
+			})
+
+		// All files diff with staged files
+		t.Views().Files().
+			Press(keys.Files.CopyFileInfoToClipboard).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Copy to clipboard")).
+					Select(Contains("Diff of all files")).
+					Tooltip(Equals("If there are staged items, this command considers only them. Otherwise, it considers all the unstaged ones.")).
+					Confirm()
+
+				expectClipboard(t, Contains("+staged content (new)"))
+			})
+
+		// All files diff with no staged files
+		t.Views().Files().
+			SelectNextItem().
+			SelectNextItem().
+			Lines(
+				Contains("dir"),
+				Contains("unstaged_file"),
+				Contains("staged_file").IsSelected(),
+			).
+			Press(keys.Universal.Select).
+			Press(keys.Files.CopyFileInfoToClipboard).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Copy to clipboard")).
+					Select(Contains("Diff of all files")).
+					Tooltip(Equals("If there are staged items, this command considers only them. Otherwise, it considers all the unstaged ones.")).
+					Confirm()
+
+				expectClipboard(t, Contains("+staged content (new)").Contains("+unstaged content (new)"))
+			})
+	},
+})
diff --git a/pkg/integration/tests/test_list.go b/pkg/integration/tests/test_list.go
index 5716507f8..0aa61b463 100644
--- a/pkg/integration/tests/test_list.go
+++ b/pkg/integration/tests/test_list.go
@@ -117,6 +117,7 @@ var tests = []*components.IntegrationTest{
 	diff.DiffAndApplyPatch,
 	diff.DiffCommits,
 	diff.IgnoreWhitespace,
+	file.CopyMenu,
 	file.DirWithUntrackedFile,
 	file.DiscardAllDirChanges,
 	file.DiscardChanges,