support reset from log view (#1534)

CHANGELOG.md

@@ -7,11 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+**reset to commit**
+
+![reset](assets/reset_in_log.gif)
+
 ### Added
 * changes in commit message inside external editor [[@bc-universe]](https://github.com/bc-universe) ([#1420](https://github.com/extrawurst/gitui/issues/1420))
 * allow detaching HEAD and checking out specific commit from log view [[@fralcow]](https://github.com/fralcow) ([#1499](https://github.com/extrawurst/gitui/pull/1499))
 * add no-verify option on commits to not run hooks [[@dam5h]](https://github.com/dam5h) ([#1374](https://github.com/extrawurst/gitui/issues/1374))
 * allow `fetch` on status tab [[@alensiljak]](https://github.com/alensiljak) ([#1471](https://github.com/extrawurst/gitui/issues/1471))
+* allow reset (soft,mixed,hard) from commit log ([#1500](https://github.com/extrawurst/gitui/issues/1500))
 
 ### Fixes
 * commit msg history ordered the wrong way ([#1445](https://github.com/extrawurst/gitui/issues/1445))

asyncgit/src/sync/mod.rs

@@ -75,7 +75,7 @@ pub use remotes::{
 };
 pub(crate) use repository::repo;
 pub use repository::{RepoPath, RepoPathRef};
-pub use reset::{reset_stage, reset_workdir};
+pub use reset::{reset_repo, reset_stage, reset_workdir};
 pub use staging::{discard_lines, stage_lines};
 pub use stash::{
 	get_stashes, stash_apply, stash_drop, stash_pop, stash_save,
@@ -96,6 +96,8 @@ pub use utils::{
 	stage_add_file, stage_addremoved, Head,
 };
 
+pub use git2::ResetType;
+
 #[cfg(test)]
 mod tests {
 	use super::{

asyncgit/src/sync/reset.rs

@@ -1,6 +1,6 @@
-use super::{utils::get_head_repo, RepoPath};
+use super::{utils::get_head_repo, CommitId, RepoPath};
 use crate::{error::Result, sync::repository::repo};
-use git2::{build::CheckoutBuilder, ObjectType};
+use git2::{build::CheckoutBuilder, ObjectType, ResetType};
 use scopetime::scope_time;
 
 ///
@@ -38,6 +38,23 @@ pub fn reset_workdir(repo_path: &RepoPath, path: &str) -> Result<()> {
 	Ok(())
 }
 
+///
+pub fn reset_repo(
+	repo_path: &RepoPath,
+	commit: CommitId,
+	kind: ResetType,
+) -> Result<()> {
+	scope_time!("reset_repo");
+
+	let repo = repo(repo_path)?;
+
+	let c = repo.find_commit(commit.into())?;
+
+	repo.reset(c.as_object(), kind, None)?;
+
+	Ok(())
+}
+
 #[cfg(test)]
 mod tests {
 	use super::{reset_stage, reset_workdir};

src/app.rs

@@ -10,7 +10,7 @@ use crate::{
 		FileRevlogComponent, HelpComponent, InspectCommitComponent,
 		MsgComponent, OptionsPopupComponent, PullComponent,
 		PushComponent, PushTagsComponent, RenameBranchComponent,
-		RevisionFilesPopup, StashMsgComponent,
+		ResetPopupComponent, RevisionFilesPopup, StashMsgComponent,
 		SubmodulesListComponent, TagCommitComponent,
 		TagListComponent,
 	},
@@ -84,6 +84,7 @@ pub struct App {
 	options_popup: OptionsPopupComponent,
 	submodule_popup: SubmodulesListComponent,
 	tags_popup: TagListComponent,
+	reset_popup: ResetPopupComponent,
 	cmdbar: RefCell<CommandBar>,
 	tab: usize,
 	revlog: Revlog,
@@ -204,6 +205,12 @@ impl App {
 				theme.clone(),
 				key_config.clone(),
 			),
+			reset_popup: ResetPopupComponent::new(
+				&queue,
+				&repo,
+				theme.clone(),
+				key_config.clone(),
+			),
 			pull_popup: PullComponent::new(
 				&repo,
 				&queue,
@@ -484,6 +491,7 @@ impl App {
 		self.files_tab.update()?;
 		self.stashing_tab.update()?;
 		self.stashlist_tab.update()?;
+		self.reset_popup.update()?;
 
 		self.update_commands();
 
@@ -590,6 +598,7 @@ impl App {
 			revision_files_popup,
 			submodule_popup,
 			tags_popup,
+			reset_popup,
 			options_popup,
 			help,
 			revlog,
@@ -615,6 +624,7 @@ impl App {
 			select_branch_popup,
 			submodule_popup,
 			tags_popup,
+			reset_popup,
 			create_branch_popup,
 			rename_branch_popup,
 			revision_files_popup,
@@ -926,6 +936,9 @@ impl App {
 				self.do_quit =
 					QuitState::OpenSubmodule(submodule_repo_path);
 			}
+			InternalEvent::OpenResetPopup(id) => {
+				self.reset_popup.open(id)?;
+			}
 		};
 
 		Ok(flags)

src/components/mod.rs

@@ -22,6 +22,7 @@ mod push;
 mod push_tags;
 mod rename_branch;
 mod reset;
+mod reset_popup;
 mod revision_files;
 mod revision_files_popup;
 mod stashmsg;
@@ -57,6 +58,7 @@ pub use push::PushComponent;
 pub use push_tags::PushTagsComponent;
 pub use rename_branch::RenameBranchComponent;
 pub use reset::ConfirmComponent;
+pub use reset_popup::ResetPopupComponent;
 pub use revision_files::RevisionFilesComponent;
 pub use revision_files_popup::{FileTreeOpen, RevisionFilesPopup};
 pub use stashmsg::StashMsgComponent;

src/components/reset_popup.rs

@@ -0,0 +1,272 @@
+use super::{
+	visibility_blocking, CommandBlocking, CommandInfo, Component,
+	DrawableComponent, EventState,
+};
+use crate::{
+	keys::{key_match, SharedKeyConfig},
+	queue::Queue,
+	strings, try_or_popup,
+	ui::{self, style::SharedTheme},
+};
+use anyhow::Result;
+use asyncgit::{
+	cached,
+	sync::{CommitId, RepoPath, RepoPathRef, ResetType},
+};
+use crossterm::event::Event;
+use tui::{
+	backend::Backend,
+	layout::{Alignment, Rect},
+	text::{Span, Spans},
+	widgets::{Block, Borders, Clear, Paragraph},
+	Frame,
+};
+
+const fn type_to_string(
+	kind: ResetType,
+) -> (&'static str, &'static str) {
+	const RESET_TYPE_DESC_SOFT: &str =
+		"  🟢 Keep all changes. Stage differences";
+	const RESET_TYPE_DESC_MIXED: &str =
+		" 🟡 Keep all changes. Unstage differences";
+	const RESET_TYPE_DESC_HARD: &str =
+		"  🔴 Discard all local changes";
+
+	match kind {
+		ResetType::Soft => ("Soft", RESET_TYPE_DESC_SOFT),
+		ResetType::Mixed => ("Mixed", RESET_TYPE_DESC_MIXED),
+		ResetType::Hard => ("Hard", RESET_TYPE_DESC_HARD),
+	}
+}
+
+pub struct ResetPopupComponent {
+	queue: Queue,
+	repo: RepoPath,
+	commit: Option<CommitId>,
+	kind: ResetType,
+	git_branch_name: cached::BranchName,
+	visible: bool,
+	key_config: SharedKeyConfig,
+	theme: SharedTheme,
+}
+
+impl ResetPopupComponent {
+	///
+	pub fn new(
+		queue: &Queue,
+		repo: &RepoPathRef,
+		theme: SharedTheme,
+		key_config: SharedKeyConfig,
+	) -> Self {
+		Self {
+			queue: queue.clone(),
+			repo: repo.borrow().clone(),
+			commit: None,
+			kind: ResetType::Soft,
+			git_branch_name: cached::BranchName::new(repo.clone()),
+			visible: false,
+			key_config,
+			theme,
+		}
+	}
+
+	fn get_text(&self, _width: u16) -> Vec<Spans> {
+		let mut txt: Vec<Spans> = Vec::with_capacity(10);
+
+		txt.push(Spans::from(vec![
+			Span::styled(
+				String::from("Branch: "),
+				self.theme.text(true, false),
+			),
+			Span::styled(
+				self.git_branch_name.last().unwrap_or_default(),
+				self.theme.branch(false, true),
+			),
+		]));
+
+		txt.push(Spans::from(vec![
+			Span::styled(
+				String::from("Reset to: "),
+				self.theme.text(true, false),
+			),
+			Span::styled(
+				self.commit
+					.map(|c| c.to_string())
+					.unwrap_or_default(),
+				self.theme.commit_hash(false),
+			),
+		]));
+
+		let (kind_name, kind_desc) = type_to_string(self.kind);
+
+		txt.push(Spans::from(vec![
+			Span::styled(
+				String::from("How: "),
+				self.theme.text(true, false),
+			),
+			Span::styled(kind_name, self.theme.text(true, true)),
+			Span::styled(kind_desc, self.theme.text(true, false)),
+		]));
+
+		txt
+	}
+
+	///
+	pub fn open(&mut self, id: CommitId) -> Result<()> {
+		self.show()?;
+
+		self.commit = Some(id);
+
+		Ok(())
+	}
+
+	///
+	#[allow(clippy::unnecessary_wraps)]
+	pub fn update(&mut self) -> Result<()> {
+		self.git_branch_name.lookup().map(Some).unwrap_or(None);
+
+		Ok(())
+	}
+
+	fn reset(&mut self) {
+		if let Some(id) = self.commit {
+			try_or_popup!(
+				self,
+				"reset:",
+				asyncgit::sync::reset_repo(&self.repo, id, self.kind)
+			);
+		}
+
+		self.hide();
+	}
+
+	fn change_kind(&mut self, incr: bool) {
+		self.kind = if incr {
+			match self.kind {
+				ResetType::Soft => ResetType::Mixed,
+				ResetType::Mixed => ResetType::Hard,
+				ResetType::Hard => ResetType::Soft,
+			}
+		} else {
+			match self.kind {
+				ResetType::Soft => ResetType::Hard,
+				ResetType::Mixed => ResetType::Soft,
+				ResetType::Hard => ResetType::Mixed,
+			}
+		};
+	}
+}
+
+impl DrawableComponent for ResetPopupComponent {
+	fn draw<B: Backend>(
+		&self,
+		f: &mut Frame<B>,
+		area: Rect,
+	) -> Result<()> {
+		if self.is_visible() {
+			const SIZE: (u16, u16) = (55, 5);
+			let area =
+				ui::centered_rect_absolute(SIZE.0, SIZE.1, area);
+
+			let width = area.width;
+
+			f.render_widget(Clear, area);
+			f.render_widget(
+				Paragraph::new(self.get_text(width))
+					.block(
+						Block::default()
+							.borders(Borders::ALL)
+							.title(Span::styled(
+								"Reset",
+								self.theme.title(true),
+							))
+							.border_style(self.theme.block(true)),
+					)
+					.alignment(Alignment::Left),
+				area,
+			);
+		}
+
+		Ok(())
+	}
+}
+
+impl Component for ResetPopupComponent {
+	fn commands(
+		&self,
+		out: &mut Vec<CommandInfo>,
+		force_all: bool,
+	) -> CommandBlocking {
+		if self.is_visible() || force_all {
+			out.push(
+				CommandInfo::new(
+					strings::commands::close_popup(&self.key_config),
+					true,
+					true,
+				)
+				.order(1),
+			);
+
+			out.push(
+				CommandInfo::new(
+					strings::commands::reset_commit(&self.key_config),
+					true,
+					true,
+				)
+				.order(1),
+			);
+
+			out.push(
+				CommandInfo::new(
+					strings::commands::reset_type(&self.key_config),
+					true,
+					true,
+				)
+				.order(1),
+			);
+		}
+
+		visibility_blocking(self)
+	}
+
+	fn event(
+		&mut self,
+		event: &crossterm::event::Event,
+	) -> Result<EventState> {
+		if self.is_visible() {
+			if let Event::Key(key) = &event {
+				if key_match(key, self.key_config.keys.exit_popup) {
+					self.hide();
+				} else if key_match(
+					key,
+					self.key_config.keys.move_down,
+				) {
+					self.change_kind(true);
+				} else if key_match(key, self.key_config.keys.move_up)
+				{
+					self.change_kind(false);
+				} else if key_match(key, self.key_config.keys.enter) {
+					self.reset();
+				}
+			}
+
+			return Ok(EventState::Consumed);
+		}
+
+		Ok(EventState::NotConsumed)
+	}
+
+	fn is_visible(&self) -> bool {
+		self.visible
+	}
+
+	fn hide(&mut self) {
+		self.visible = false;
+	}
+
+	fn show(&mut self) -> Result<()> {
+		self.visible = true;
+
+		Ok(())
+	}
+}

src/components/utils/mod.rs

@@ -16,10 +16,12 @@ macro_rules! try_or_popup {
 	($self:ident, $msg:expr, $e:expr) => {
 		if let Err(err) = $e {
 			::log::error!("{} {}", $msg, err);
-			$self.queue.push(InternalEvent::ShowErrorMsg(format!(
-				"{}\n{}",
-				$msg, err
-			)));
+			$self.queue.push(
+				$crate::queue::InternalEvent::ShowErrorMsg(format!(
+					"{}\n{}",
+					$msg, err
+				)),
+			);
 		}
 	};
 }

src/keys/key_list.rs

@@ -88,6 +88,7 @@ pub struct KeysList {
 	pub log_tag_commit: GituiKeyEvent,
 	pub log_mark_commit: GituiKeyEvent,
 	pub log_checkout_commit: GituiKeyEvent,
+	pub log_reset_comit: GituiKeyEvent,
 	pub commit_amend: GituiKeyEvent,
 	pub toggle_verify: GituiKeyEvent,
 	pub copy: GituiKeyEvent,
@@ -173,6 +174,7 @@ impl Default for KeysList {
 			log_tag_commit: GituiKeyEvent::new(KeyCode::Char('t'),  KeyModifiers::empty()),
 			log_mark_commit: GituiKeyEvent::new(KeyCode::Char(' '),  KeyModifiers::empty()),
 			log_checkout_commit: GituiKeyEvent { code: KeyCode::Char('S'), modifiers: KeyModifiers::SHIFT },
+			log_reset_comit: GituiKeyEvent { code: KeyCode::Char('R'), modifiers: KeyModifiers::SHIFT },
 			commit_amend: GituiKeyEvent::new(KeyCode::Char('a'),  KeyModifiers::CONTROL),
 			toggle_verify: GituiKeyEvent::new(KeyCode::Char('f'),  KeyModifiers::CONTROL),
 			copy: GituiKeyEvent::new(KeyCode::Char('y'),  KeyModifiers::empty()),

src/keys/key_list_file.rs

@@ -59,6 +59,7 @@ pub struct KeysListFile {
 	pub log_tag_commit: Option<GituiKeyEvent>,
 	pub log_mark_commit: Option<GituiKeyEvent>,
 	pub log_checkout_commit: Option<GituiKeyEvent>,
+	pub log_reset_commit: Option<GituiKeyEvent>,
 	pub commit_amend: Option<GituiKeyEvent>,
 	pub toggle_verify: Option<GituiKeyEvent>,
 	pub copy: Option<GituiKeyEvent>,
@@ -153,6 +154,7 @@ impl KeysListFile {
 			log_tag_commit: self.log_tag_commit.unwrap_or(default.log_tag_commit),
 			log_mark_commit: self.log_mark_commit.unwrap_or(default.log_mark_commit),
 			log_checkout_commit: self.log_checkout_commit.unwrap_or(default.log_checkout_commit),
+			log_reset_comit: self.log_reset_commit.unwrap_or(default.log_reset_comit),
 			commit_amend: self.commit_amend.unwrap_or(default.commit_amend),
 			toggle_verify: self.toggle_verify.unwrap_or(default.toggle_verify),
 			copy: self.copy.unwrap_or(default.copy),

src/queue.rs

@@ -126,6 +126,8 @@ pub enum InternalEvent {
 	ViewSubmodules,
 	///
 	OpenRepo { path: PathBuf },
+	///
+	OpenResetPopup(CommitId),
 }
 
 /// single threaded simple queue for components to communicate with each other

src/strings.rs

@@ -1233,6 +1233,39 @@ pub mod commands {
 			CMD_GROUP_LOG,
 		)
 	}
+	pub fn log_reset_commit(
+		key_config: &SharedKeyConfig,
+	) -> CommandText {
+		CommandText::new(
+			format!(
+				"Reset [{}]",
+				key_config.get_hint(key_config.keys.log_reset_comit),
+			),
+			"reset to commit",
+			CMD_GROUP_LOG,
+		)
+	}
+	pub fn reset_commit(key_config: &SharedKeyConfig) -> CommandText {
+		CommandText::new(
+			format!(
+				"Confirm  [{}]",
+				key_config.get_hint(key_config.keys.enter),
+			),
+			"confirm reset",
+			CMD_GROUP_LOG,
+		)
+	}
+	pub fn reset_type(key_config: &SharedKeyConfig) -> CommandText {
+		CommandText::new(
+			format!(
+				"Change Type  [{}{}]",
+				key_config.get_hint(key_config.keys.move_up),
+				key_config.get_hint(key_config.keys.move_down)
+			),
+			"change reset type",
+			CMD_GROUP_LOG,
+		)
+	}
 	pub fn tag_commit_confirm_msg(
 		key_config: &SharedKeyConfig,
 	) -> CommandText {

src/tabs/revlog.rs

@@ -327,6 +327,19 @@ impl Component for Revlog {
 				} else if key_match(k, self.key_config.keys.tags) {
 					self.queue.push(InternalEvent::Tags);
 					return Ok(EventState::Consumed);
+				} else if key_match(
+					k,
+					self.key_config.keys.log_reset_comit,
+				) {
+					return self.selected_commit().map_or(
+						Ok(EventState::NotConsumed),
+						|id| {
+							self.queue.push(
+								InternalEvent::OpenResetPopup(id),
+							);
+							Ok(EventState::Consumed)
+						},
+					);
 				} else if key_match(
 					k,
 					self.key_config.keys.compare_commits,
@@ -449,6 +462,12 @@ impl Component for Revlog {
 			self.visible || force_all,
 		));
 
+		out.push(CommandInfo::new(
+			strings::commands::log_reset_commit(&self.key_config),
+			self.selected_commit().is_some(),
+			self.visible || force_all,
+		));
+
 		visibility_blocking(self)
 	}