Add Go to line feature for the blame view

CHANGELOG.md

@@ -15,6 +15,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Set `CREATE_NO_WINDOW` flag when executing Git hooks on Windows ([#2371](https://github.com/extrawurst/gitui/pull/2371))
 
 ### Added
+
+* Add "go to line" command for the blame view [[@andrea-berling](https://github.com/andrea-berling)] ([#2262](https://github.com/extrawurst/gitui/pull/2262))
 * support for "Copy Path" action in WSL [[@johnDeSilencio](https://github.com/johnDeSilencio)] ([#2413](https://github.com/extrawurst/gitui/pull/2413))
 * help popup scrollbar [[@wugeer](https://github.com/wugeer)](https://github.com/extrawurst/gitui/pull/2388))
 * add popups for viewing, adding, updating and removing remotes [[@robin-thoene](https://github.com/robin-thoene)] ([#2172](https://github.com/extrawurst/gitui/issues/2172))

asyncgit/src/blame.rs

@@ -14,23 +14,25 @@ use std::{
 };
 
 ///
-#[derive(Hash, Clone, PartialEq, Eq)]
+#[derive(Hash, Clone, PartialEq, Eq, Debug)]
 pub struct BlameParams {
 	/// path to the file to blame
 	pub file_path: String,
 	/// blame at a specific revision
 	pub commit_id: Option<CommitId>,
 }
 
+#[derive(Debug)]
 struct Request<R, A>(R, Option<A>);
 
-#[derive(Default, Clone)]
+#[derive(Debug, Default, Clone)]
 struct LastResult<P, R> {
 	params: P,
 	result: R,
 }
 
 ///
+#[derive(Debug, Clone)]
 pub struct AsyncBlame {
 	current: Arc<Mutex<Request<u64, FileBlame>>>,
 	last: Arc<Mutex<Option<LastResult<BlameParams, FileBlame>>>>,

src/app.rs

@@ -10,16 +10,16 @@ use crate::{
 	options::{Options, SharedOptions},
 	popup_stack::PopupStack,
 	popups::{
-		AppOption, BlameFilePopup, BranchListPopup, CommitPopup,
-		CompareCommitsPopup, ConfirmPopup, CreateBranchPopup,
-		CreateRemotePopup, ExternalEditorPopup, FetchPopup,
-		FileRevlogPopup, FuzzyFindPopup, HelpPopup,
-		InspectCommitPopup, LogSearchPopupPopup, MsgPopup,
-		OptionsPopup, PullPopup, PushPopup, PushTagsPopup,
-		RemoteListPopup, RenameBranchPopup, RenameRemotePopup,
-		ResetPopup, RevisionFilesPopup, StashMsgPopup,
-		SubmodulesListPopup, TagCommitPopup, TagListPopup,
-		UpdateRemoteUrlPopup,
+		AppOption, BlameFileOpen, BlameFilePopup, BlameRequest,
+		BranchListPopup, CommitPopup, CompareCommitsPopup,
+		ConfirmPopup, CreateBranchPopup, CreateRemotePopup,
+		ExternalEditorPopup, FetchPopup, FileRevlogPopup,
+		FuzzyFindPopup, GotoLinePopup, HelpPopup, InspectCommitPopup,
+		LogSearchPopupPopup, MsgPopup, OptionsPopup, PullPopup,
+		PushPopup, PushTagsPopup, RemoteListPopup, RenameBranchPopup,
+		RenameRemotePopup, ResetPopup, RevisionFilesPopup,
+		StashMsgPopup, SubmodulesListPopup, TagCommitPopup,
+		TagListPopup, UpdateRemoteUrlPopup,
 	},
 	queue::{
 		Action, AppTabs, InternalEvent, NeedsUpdate, Queue,
@@ -112,6 +112,7 @@ pub struct App {
 	popup_stack: PopupStack,
 	options: SharedOptions,
 	repo_path_text: String,
+	goto_line_popup: GotoLinePopup,
 
 	// "Flags"
 	requires_redraw: Cell<bool>,
@@ -218,6 +219,7 @@ impl App {
 			stashing_tab: Stashing::new(&env),
 			stashlist_tab: StashList::new(&env),
 			files_tab: FilesTab::new(&env),
+			goto_line_popup: GotoLinePopup::new(&env),
 			tab: 0,
 			queue: env.queue,
 			theme: env.theme,
@@ -481,6 +483,7 @@ impl App {
 			msg_popup,
 			confirm_popup,
 			commit_popup,
+			goto_line_popup,
 			blame_file_popup,
 			file_revlog_popup,
 			stashmsg_popup,
@@ -544,7 +547,8 @@ impl App {
 			fetch_popup,
 			options_popup,
 			confirm_popup,
-			msg_popup
+			msg_popup,
+			goto_line_popup
 		]
 	);
 
@@ -691,6 +695,9 @@ impl App {
 			StackablePopupOpen::CompareCommits(param) => {
 				self.compare_commits_popup.open(param)?;
 			}
+			StackablePopupOpen::GotoLine(param) => {
+				self.goto_line_popup.open(param);
+			}
 		}
 
 		Ok(())
@@ -905,6 +912,26 @@ impl App {
 			InternalEvent::CommitSearch(options) => {
 				self.revlog.search(options);
 			}
+			InternalEvent::GotoLine(line) => {
+				if let Some(popup) = self.popup_stack.pop() {
+					if let StackablePopupOpen::BlameFile(params) =
+						popup
+					{
+						self.popup_stack.push(
+							StackablePopupOpen::BlameFile(
+								BlameFileOpen {
+									selection: Some(line),
+									blame: BlameRequest::KeepExisting,
+									..params
+								},
+							),
+						);
+					}
+					flags.insert(
+						NeedsUpdate::ALL | NeedsUpdate::COMMANDS,
+					);
+				}
+			}
 		};
 
 		Ok(flags)

src/components/revision_files.rs

@@ -6,7 +6,7 @@ use super::{
 use crate::{
 	app::Environment,
 	keys::{key_match, SharedKeyConfig},
-	popups::{BlameFileOpen, FileRevOpen},
+	popups::{BlameFileOpen, BlameRequest, FileRevOpen},
 	queue::{InternalEvent, Queue, StackablePopupOpen},
 	strings::{self, order, symbol},
 	try_or_popup,
@@ -193,6 +193,7 @@ impl RevisionFilesComponent {
 					file_path: path,
 					commit_id: self.revision.as_ref().map(|c| c.id),
 					selection: None,
+					blame: BlameRequest::StartNew,
 				}),
 			));
 

src/components/status_tree.rs

@@ -9,7 +9,7 @@ use crate::{
 	app::Environment,
 	components::{CommandInfo, Component, EventState},
 	keys::{key_match, SharedKeyConfig},
-	popups::{BlameFileOpen, FileRevOpen},
+	popups::{BlameFileOpen, BlameRequest, FileRevOpen},
 	queue::{InternalEvent, NeedsUpdate, Queue, StackablePopupOpen},
 	strings::{self, order},
 	ui::{self, style::SharedTheme},
@@ -456,6 +456,7 @@ impl Component for StatusTreeComponent {
 									file_path: status_item.path,
 									commit_id: self.revision,
 									selection: None,
+									blame: BlameRequest::StartNew,
 								},
 							),
 						));

src/keys/key_list.rs

@@ -128,6 +128,7 @@ pub struct KeysList {
 	pub commit_history_next: GituiKeyEvent,
 	pub commit: GituiKeyEvent,
 	pub newline: GituiKeyEvent,
+	pub goto_line: GituiKeyEvent,
 }
 
 #[rustfmt::skip]
@@ -225,6 +226,7 @@ impl Default for KeysList {
 			commit_history_next: GituiKeyEvent::new(KeyCode::Char('n'),  KeyModifiers::CONTROL),
 			commit: GituiKeyEvent::new(KeyCode::Char('d'),  KeyModifiers::CONTROL),
 			newline: GituiKeyEvent::new(KeyCode::Enter,  KeyModifiers::empty()),
+			goto_line: GituiKeyEvent::new(KeyCode::Char('L'),  KeyModifiers::SHIFT),
 		}
 	}
 }

src/popups/blame_file.rs

@@ -30,12 +30,15 @@ use ratatui::{
 };
 use std::path::Path;
 
+use super::{goto_line::GotoLineContext, GotoLineOpen};
+
 static NO_COMMIT_ID: &str = "0000000";
 static NO_AUTHOR: &str = "<no author>";
 static MIN_AUTHOR_WIDTH: usize = 3;
 static MAX_AUTHOR_WIDTH: usize = 20;
 
-struct SyntaxFileBlame {
+#[derive(Debug, Clone)]
+pub struct SyntaxFileBlame {
 	pub file_blame: FileBlame,
 	pub styled_text: Option<SyntaxText>,
 }
@@ -54,7 +57,8 @@ impl SyntaxFileBlame {
 	}
 }
 
-enum BlameProcess {
+#[derive(Clone, Debug)]
+pub enum BlameProcess {
 	GettingBlame(AsyncBlame),
 	SyntaxHighlighting {
 		unstyled_file_blame: SyntaxFileBlame,
@@ -76,11 +80,18 @@ impl BlameProcess {
 	}
 }
 
+#[derive(Clone, Debug)]
+pub enum BlameRequest {
+	StartNew,
+	KeepExisting,
+}
+
 #[derive(Clone, Debug)]
 pub struct BlameFileOpen {
 	pub file_path: String,
 	pub commit_id: Option<CommitId>,
 	pub selection: Option<usize>,
+	pub blame: BlameRequest,
 }
 
 pub struct BlameFilePopup {
@@ -234,6 +245,16 @@ impl Component for BlameFilePopup {
 				)
 				.order(1),
 			);
+			out.push(
+				CommandInfo::new(
+					strings::commands::open_line_number_popup(
+						&self.key_config,
+					),
+					true,
+					has_result,
+				)
+				.order(1),
+			);
 		}
 
 		visibility_blocking(self)
@@ -307,6 +328,31 @@ impl Component for BlameFilePopup {
 							),
 						));
 					}
+				} else if key_match(
+					key,
+					self.key_config.keys.goto_line,
+				) {
+					let maybe_blame_result = &self
+						.blame
+						.as_ref()
+						.and_then(|blame| blame.result());
+					if maybe_blame_result.is_some() {
+						let max_line = maybe_blame_result
+							.expect("This can not be None")
+							.lines()
+							.len() - 1;
+						self.hide_stacked(true);
+						self.visible = true;
+						self.queue.push(InternalEvent::OpenPopup(
+							StackablePopupOpen::GotoLine(
+								GotoLineOpen {
+									context: GotoLineContext {
+										max_line,
+									},
+								},
+							),
+						));
+					}
 				}
 
 				return Ok(EventState::Consumed);
@@ -356,6 +402,7 @@ impl BlameFilePopup {
 						file_path: request.file_path,
 						commit_id: request.commit_id,
 						selection: self.get_selection(),
+						blame: BlameRequest::KeepExisting,
 					}),
 				));
 			}
@@ -371,11 +418,13 @@ impl BlameFilePopup {
 			file_path: open.file_path,
 			commit_id: open.commit_id,
 		});
-		self.blame =
-			Some(BlameProcess::GettingBlame(AsyncBlame::new(
-				self.repo.borrow().clone(),
-				&self.git_sender,
-			)));
+		if matches!(open.blame, BlameRequest::StartNew) {
+			self.blame =
+				Some(BlameProcess::GettingBlame(AsyncBlame::new(
+					self.repo.borrow().clone(),
+					&self.git_sender,
+				)));
+		}
 		self.table_state.get_mut().select(Some(0));
 		self.visible = true;
 		self.update()?;
@@ -438,7 +487,6 @@ impl BlameFilePopup {
 									),
 								},
 							);
-							self.set_open_selection();
 							self.highlight_blame_lines();
 
 							return Ok(());
@@ -449,6 +497,7 @@ impl BlameFilePopup {
 				}
 			}
 		}
+		self.set_open_selection();
 
 		Ok(())
 	}
@@ -721,7 +770,9 @@ impl BlameFilePopup {
 			self.open_request.as_ref().and_then(|req| req.selection)
 		{
 			let mut table_state = self.table_state.take();
-			table_state.select(Some(selection));
+			let max_line_number = self.get_max_line_number();
+			table_state
+				.select(Some(selection.clamp(0, max_line_number)));
 			self.table_state.set(table_state);
 		}
 	}

src/popups/file_revlog.rs

@@ -28,7 +28,7 @@ use ratatui::{
 	Frame,
 };
 
-use super::{BlameFileOpen, InspectCommitOpen};
+use super::{BlameFileOpen, BlameRequest, InspectCommitOpen};
 
 const SLICE_SIZE: usize = 1200;
 
@@ -536,6 +536,7 @@ impl Component for FileRevlogPopup {
 									file_path: open_request.file_path,
 									commit_id: self.selected_commit(),
 									selection: None,
+									blame: BlameRequest::StartNew,
 								},
 							),
 						));