git_graph.rs

   1use collections::{BTreeMap, HashMap, IndexSet};
   2use editor::Editor;
   3use git::{
   4    BuildCommitPermalinkParams, GitHostingProviderRegistry, GitRemote, Oid, ParsedGitRemote,
   5    parse_git_remote_url,
   6    repository::{
   7        CommitDiff, CommitFile, InitialGraphCommitData, LogOrder, LogSource, RepoPath,
   8        SearchCommitArgs,
   9    },
  10    status::{FileStatus, StatusCode, TrackedStatus},
  11};
  12use git_ui::{commit_tooltip::CommitAvatar, commit_view::CommitView, git_status_icon};
  13use gpui::{
  14    AnyElement, App, Bounds, ClickEvent, ClipboardItem, Corner, DefiniteLength, DragMoveEvent,
  15    ElementId, Empty, Entity, EventEmitter, FocusHandle, Focusable, Hsla, PathBuilder, Pixels,
  16    Point, ScrollStrategy, ScrollWheelEvent, SharedString, Subscription, Task, TextStyleRefinement,
  17    UniformListScrollHandle, WeakEntity, Window, actions, anchored, deferred, point, prelude::*,
  18    px, uniform_list,
  19};
  20use language::line_diff;
  21use menu::{Cancel, SelectFirst, SelectLast, SelectNext, SelectPrevious};
  22use project::git_store::{
  23    CommitDataState, GitGraphEvent, GitStore, GitStoreEvent, GraphDataResponse, Repository,
  24    RepositoryEvent, RepositoryId,
  25};
  26use search::{
  27    SearchOption, SearchOptions, SearchSource, SelectNextMatch, SelectPreviousMatch,
  28    ToggleCaseSensitive, buffer_search,
  29};
  30use settings::Settings;
  31use smallvec::{SmallVec, smallvec};
  32use std::{
  33    cell::Cell,
  34    ops::Range,
  35    rc::Rc,
  36    sync::{Arc, OnceLock},
  37    time::{Duration, Instant},
  38};
  39use theme::AccentColors;
  40use theme_settings::ThemeSettings;
  41use time::{OffsetDateTime, UtcOffset, format_description::BorrowedFormatItem};
  42use ui::{
  43    ButtonLike, Chip, ColumnWidthConfig, CommonAnimationExt as _, ContextMenu, DiffStat, Divider,
  44    HeaderResizeInfo, HighlightedLabel, RedistributableColumnsState, ScrollableHandle, Table,
  45    TableInteractionState, TableRenderContext, TableResizeBehavior, Tooltip, WithScrollbar,
  46    bind_redistributable_columns, prelude::*, render_redistributable_columns_resize_handles,
  47    render_table_header, table_row::TableRow,
  48};
  49use workspace::{
  50    Workspace,
  51    item::{Item, ItemEvent, TabTooltipContent},
  52};
  53
  54const COMMIT_CIRCLE_RADIUS: Pixels = px(3.5);
  55const COMMIT_CIRCLE_STROKE_WIDTH: Pixels = px(1.5);
  56const LANE_WIDTH: Pixels = px(16.0);
  57const LEFT_PADDING: Pixels = px(12.0);
  58const LINE_WIDTH: Pixels = px(1.5);
  59const RESIZE_HANDLE_WIDTH: f32 = 8.0;
  60const COPIED_STATE_DURATION: Duration = Duration::from_secs(2);
  61
  62struct CopiedState {
  63    copied_at: Option<Instant>,
  64}
  65
  66impl CopiedState {
  67    fn new(_window: &mut Window, _cx: &mut Context<Self>) -> Self {
  68        Self { copied_at: None }
  69    }
  70
  71    fn is_copied(&self) -> bool {
  72        self.copied_at
  73            .map(|t| t.elapsed() < COPIED_STATE_DURATION)
  74            .unwrap_or(false)
  75    }
  76
  77    fn mark_copied(&mut self) {
  78        self.copied_at = Some(Instant::now());
  79    }
  80}
  81
  82struct DraggedSplitHandle;
  83
  84#[derive(Clone)]
  85struct ChangedFileEntry {
  86    status: FileStatus,
  87    file_name: SharedString,
  88    dir_path: SharedString,
  89    repo_path: RepoPath,
  90}
  91
  92impl ChangedFileEntry {
  93    fn from_commit_file(file: &CommitFile, _cx: &App) -> Self {
  94        let file_name: SharedString = file
  95            .path
  96            .file_name()
  97            .map(|n| n.to_string())
  98            .unwrap_or_default()
  99            .into();
 100        let dir_path: SharedString = file
 101            .path
 102            .parent()
 103            .map(|p| p.as_unix_str().to_string())
 104            .unwrap_or_default()
 105            .into();
 106
 107        let status_code = match (&file.old_text, &file.new_text) {
 108            (None, Some(_)) => StatusCode::Added,
 109            (Some(_), None) => StatusCode::Deleted,
 110            _ => StatusCode::Modified,
 111        };
 112
 113        let status = FileStatus::Tracked(TrackedStatus {
 114            index_status: status_code,
 115            worktree_status: StatusCode::Unmodified,
 116        });
 117
 118        Self {
 119            status,
 120            file_name,
 121            dir_path,
 122            repo_path: file.path.clone(),
 123        }
 124    }
 125
 126    fn open_in_commit_view(
 127        &self,
 128        commit_sha: &SharedString,
 129        repository: &WeakEntity<Repository>,
 130        workspace: &WeakEntity<Workspace>,
 131        window: &mut Window,
 132        cx: &mut App,
 133    ) {
 134        CommitView::open(
 135            commit_sha.to_string(),
 136            repository.clone(),
 137            workspace.clone(),
 138            None,
 139            Some(self.repo_path.clone()),
 140            window,
 141            cx,
 142        );
 143    }
 144
 145    fn render(
 146        &self,
 147        ix: usize,
 148        commit_sha: SharedString,
 149        repository: WeakEntity<Repository>,
 150        workspace: WeakEntity<Workspace>,
 151        _cx: &App,
 152    ) -> AnyElement {
 153        let file_name = self.file_name.clone();
 154        let dir_path = self.dir_path.clone();
 155
 156        div()
 157            .w_full()
 158            .child(
 159                ButtonLike::new(("changed-file", ix))
 160                    .child(
 161                        h_flex()
 162                            .min_w_0()
 163                            .w_full()
 164                            .gap_1()
 165                            .overflow_hidden()
 166                            .child(git_status_icon(self.status))
 167                            .child(
 168                                Label::new(file_name.clone())
 169                                    .size(LabelSize::Small)
 170                                    .truncate(),
 171                            )
 172                            .when(!dir_path.is_empty(), |this| {
 173                                this.child(
 174                                    Label::new(dir_path.clone())
 175                                        .size(LabelSize::Small)
 176                                        .color(Color::Muted)
 177                                        .truncate_start(),
 178                                )
 179                            }),
 180                    )
 181                    .tooltip({
 182                        let meta = if dir_path.is_empty() {
 183                            file_name
 184                        } else {
 185                            format!("{}/{}", dir_path, file_name).into()
 186                        };
 187                        move |_, cx| Tooltip::with_meta("View Changes", None, meta.clone(), cx)
 188                    })
 189                    .on_click({
 190                        let entry = self.clone();
 191                        move |_, window, cx| {
 192                            entry.open_in_commit_view(
 193                                &commit_sha,
 194                                &repository,
 195                                &workspace,
 196                                window,
 197                                cx,
 198                            );
 199                        }
 200                    }),
 201            )
 202            .into_any_element()
 203    }
 204}
 205
 206enum QueryState {
 207    Pending(SharedString),
 208    Confirmed((SharedString, Task<()>)),
 209    Empty,
 210}
 211
 212impl QueryState {
 213    fn next_state(&mut self) {
 214        match self {
 215            Self::Confirmed((query, _)) => *self = Self::Pending(std::mem::take(query)),
 216            _ => {}
 217        };
 218    }
 219}
 220
 221struct SearchState {
 222    case_sensitive: bool,
 223    editor: Entity<Editor>,
 224    state: QueryState,
 225    pub matches: IndexSet<Oid>,
 226    pub selected_index: Option<usize>,
 227}
 228
 229pub struct SplitState {
 230    left_ratio: f32,
 231    visible_left_ratio: f32,
 232}
 233
 234impl SplitState {
 235    pub fn new() -> Self {
 236        Self {
 237            left_ratio: 1.0,
 238            visible_left_ratio: 1.0,
 239        }
 240    }
 241
 242    pub fn right_ratio(&self) -> f32 {
 243        1.0 - self.visible_left_ratio
 244    }
 245
 246    fn on_drag_move(
 247        &mut self,
 248        drag_event: &DragMoveEvent<DraggedSplitHandle>,
 249        _window: &mut Window,
 250        _cx: &mut Context<Self>,
 251    ) {
 252        let drag_position = drag_event.event.position;
 253        let bounds = drag_event.bounds;
 254        let bounds_width = bounds.right() - bounds.left();
 255
 256        let min_ratio = 0.1;
 257        let max_ratio = 0.9;
 258
 259        let new_ratio = (drag_position.x - bounds.left()) / bounds_width;
 260        self.visible_left_ratio = new_ratio.clamp(min_ratio, max_ratio);
 261    }
 262
 263    fn commit_ratio(&mut self) {
 264        self.left_ratio = self.visible_left_ratio;
 265    }
 266
 267    fn on_double_click(&mut self) {
 268        self.left_ratio = 1.0;
 269        self.visible_left_ratio = 1.0;
 270    }
 271}
 272
 273actions!(
 274    git_graph,
 275    [
 276        /// Opens the commit view for the selected commit.
 277        OpenCommitView,
 278        /// Focuses the search field.
 279        FocusSearch,
 280    ]
 281);
 282
 283fn timestamp_format() -> &'static [BorrowedFormatItem<'static>] {
 284    static FORMAT: OnceLock<Vec<BorrowedFormatItem<'static>>> = OnceLock::new();
 285    FORMAT.get_or_init(|| {
 286        time::format_description::parse("[day] [month repr:short] [year] [hour]:[minute]")
 287            .unwrap_or_default()
 288    })
 289}
 290
 291fn format_timestamp(timestamp: i64) -> String {
 292    let Ok(datetime) = OffsetDateTime::from_unix_timestamp(timestamp) else {
 293        return "Unknown".to_string();
 294    };
 295
 296    let local_offset = UtcOffset::current_local_offset().unwrap_or(UtcOffset::UTC);
 297    let local_datetime = datetime.to_offset(local_offset);
 298
 299    local_datetime
 300        .format(timestamp_format())
 301        .unwrap_or_default()
 302}
 303
 304fn accent_colors_count(accents: &AccentColors) -> usize {
 305    accents.0.len()
 306}
 307
 308#[derive(Copy, Clone, Debug)]
 309struct BranchColor(u8);
 310
 311#[derive(Debug)]
 312enum LaneState {
 313    Empty,
 314    Active {
 315        child: Oid,
 316        parent: Oid,
 317        color: Option<BranchColor>,
 318        starting_row: usize,
 319        starting_col: usize,
 320        destination_column: Option<usize>,
 321        segments: SmallVec<[CommitLineSegment; 1]>,
 322    },
 323}
 324
 325impl LaneState {
 326    fn to_commit_lines(
 327        &mut self,
 328        ending_row: usize,
 329        lane_column: usize,
 330        parent_column: usize,
 331        parent_color: BranchColor,
 332    ) -> Option<CommitLine> {
 333        let state = std::mem::replace(self, LaneState::Empty);
 334
 335        match state {
 336            LaneState::Active {
 337                #[cfg_attr(not(test), allow(unused_variables))]
 338                parent,
 339                #[cfg_attr(not(test), allow(unused_variables))]
 340                child,
 341                color,
 342                starting_row,
 343                starting_col,
 344                destination_column,
 345                mut segments,
 346            } => {
 347                let final_destination = destination_column.unwrap_or(parent_column);
 348                let final_color = color.unwrap_or(parent_color);
 349
 350                Some(CommitLine {
 351                    #[cfg(test)]
 352                    child,
 353                    #[cfg(test)]
 354                    parent,
 355                    child_column: starting_col,
 356                    full_interval: starting_row..ending_row,
 357                    color_idx: final_color.0 as usize,
 358                    segments: {
 359                        match segments.last_mut() {
 360                            Some(CommitLineSegment::Straight { to_row })
 361                                if *to_row == usize::MAX =>
 362                            {
 363                                if final_destination != lane_column {
 364                                    *to_row = ending_row - 1;
 365
 366                                    let curved_line = CommitLineSegment::Curve {
 367                                        to_column: final_destination,
 368                                        on_row: ending_row,
 369                                        curve_kind: CurveKind::Checkout,
 370                                    };
 371
 372                                    if *to_row == starting_row {
 373                                        let last_index = segments.len() - 1;
 374                                        segments[last_index] = curved_line;
 375                                    } else {
 376                                        segments.push(curved_line);
 377                                    }
 378                                } else {
 379                                    *to_row = ending_row;
 380                                }
 381                            }
 382                            Some(CommitLineSegment::Curve {
 383                                on_row,
 384                                to_column,
 385                                curve_kind,
 386                            }) if *on_row == usize::MAX => {
 387                                if *to_column == usize::MAX {
 388                                    *to_column = final_destination;
 389                                }
 390                                if matches!(curve_kind, CurveKind::Merge) {
 391                                    *on_row = starting_row + 1;
 392                                    if *on_row < ending_row {
 393                                        if *to_column != final_destination {
 394                                            segments.push(CommitLineSegment::Straight {
 395                                                to_row: ending_row - 1,
 396                                            });
 397                                            segments.push(CommitLineSegment::Curve {
 398                                                to_column: final_destination,
 399                                                on_row: ending_row,
 400                                                curve_kind: CurveKind::Checkout,
 401                                            });
 402                                        } else {
 403                                            segments.push(CommitLineSegment::Straight {
 404                                                to_row: ending_row,
 405                                            });
 406                                        }
 407                                    } else if *to_column != final_destination {
 408                                        segments.push(CommitLineSegment::Curve {
 409                                            to_column: final_destination,
 410                                            on_row: ending_row,
 411                                            curve_kind: CurveKind::Checkout,
 412                                        });
 413                                    }
 414                                } else {
 415                                    *on_row = ending_row;
 416                                    if *to_column != final_destination {
 417                                        segments.push(CommitLineSegment::Straight {
 418                                            to_row: ending_row,
 419                                        });
 420                                        segments.push(CommitLineSegment::Curve {
 421                                            to_column: final_destination,
 422                                            on_row: ending_row,
 423                                            curve_kind: CurveKind::Checkout,
 424                                        });
 425                                    }
 426                                }
 427                            }
 428                            Some(CommitLineSegment::Curve {
 429                                on_row, to_column, ..
 430                            }) => {
 431                                if *on_row < ending_row {
 432                                    if *to_column != final_destination {
 433                                        segments.push(CommitLineSegment::Straight {
 434                                            to_row: ending_row - 1,
 435                                        });
 436                                        segments.push(CommitLineSegment::Curve {
 437                                            to_column: final_destination,
 438                                            on_row: ending_row,
 439                                            curve_kind: CurveKind::Checkout,
 440                                        });
 441                                    } else {
 442                                        segments.push(CommitLineSegment::Straight {
 443                                            to_row: ending_row,
 444                                        });
 445                                    }
 446                                } else if *to_column != final_destination {
 447                                    segments.push(CommitLineSegment::Curve {
 448                                        to_column: final_destination,
 449                                        on_row: ending_row,
 450                                        curve_kind: CurveKind::Checkout,
 451                                    });
 452                                }
 453                            }
 454                            _ => {}
 455                        }
 456
 457                        segments
 458                    },
 459                })
 460            }
 461            LaneState::Empty => None,
 462        }
 463    }
 464
 465    fn is_empty(&self) -> bool {
 466        match self {
 467            LaneState::Empty => true,
 468            LaneState::Active { .. } => false,
 469        }
 470    }
 471}
 472
 473struct CommitEntry {
 474    data: Arc<InitialGraphCommitData>,
 475    lane: usize,
 476    color_idx: usize,
 477}
 478
 479type ActiveLaneIdx = usize;
 480
 481enum AllCommitCount {
 482    NotLoaded,
 483    Loaded(usize),
 484}
 485
 486#[derive(Debug)]
 487enum CurveKind {
 488    Merge,
 489    Checkout,
 490}
 491
 492#[derive(Debug)]
 493enum CommitLineSegment {
 494    Straight {
 495        to_row: usize,
 496    },
 497    Curve {
 498        to_column: usize,
 499        on_row: usize,
 500        curve_kind: CurveKind,
 501    },
 502}
 503
 504#[derive(Debug)]
 505struct CommitLine {
 506    #[cfg(test)]
 507    child: Oid,
 508    #[cfg(test)]
 509    parent: Oid,
 510    child_column: usize,
 511    full_interval: Range<usize>,
 512    color_idx: usize,
 513    segments: SmallVec<[CommitLineSegment; 1]>,
 514}
 515
 516impl CommitLine {
 517    fn get_first_visible_segment_idx(&self, first_visible_row: usize) -> Option<(usize, usize)> {
 518        if first_visible_row > self.full_interval.end {
 519            return None;
 520        } else if first_visible_row <= self.full_interval.start {
 521            return Some((0, self.child_column));
 522        }
 523
 524        let mut current_column = self.child_column;
 525
 526        for (idx, segment) in self.segments.iter().enumerate() {
 527            match segment {
 528                CommitLineSegment::Straight { to_row } => {
 529                    if *to_row >= first_visible_row {
 530                        return Some((idx, current_column));
 531                    }
 532                }
 533                CommitLineSegment::Curve {
 534                    to_column, on_row, ..
 535                } => {
 536                    if *on_row >= first_visible_row {
 537                        return Some((idx, current_column));
 538                    }
 539                    current_column = *to_column;
 540                }
 541            }
 542        }
 543
 544        None
 545    }
 546}
 547
 548#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 549struct CommitLineKey {
 550    child: Oid,
 551    parent: Oid,
 552}
 553
 554struct GraphData {
 555    lane_states: SmallVec<[LaneState; 8]>,
 556    lane_colors: HashMap<ActiveLaneIdx, BranchColor>,
 557    parent_to_lanes: HashMap<Oid, SmallVec<[usize; 1]>>,
 558    next_color: BranchColor,
 559    accent_colors_count: usize,
 560    commits: Vec<Rc<CommitEntry>>,
 561    max_commit_count: AllCommitCount,
 562    max_lanes: usize,
 563    lines: Vec<Rc<CommitLine>>,
 564    active_commit_lines: HashMap<CommitLineKey, usize>,
 565    active_commit_lines_by_parent: HashMap<Oid, SmallVec<[usize; 1]>>,
 566}
 567
 568impl GraphData {
 569    fn new(accent_colors_count: usize) -> Self {
 570        GraphData {
 571            lane_states: SmallVec::default(),
 572            lane_colors: HashMap::default(),
 573            parent_to_lanes: HashMap::default(),
 574            next_color: BranchColor(0),
 575            accent_colors_count,
 576            commits: Vec::default(),
 577            max_commit_count: AllCommitCount::NotLoaded,
 578            max_lanes: 0,
 579            lines: Vec::default(),
 580            active_commit_lines: HashMap::default(),
 581            active_commit_lines_by_parent: HashMap::default(),
 582        }
 583    }
 584
 585    fn clear(&mut self) {
 586        self.lane_states.clear();
 587        self.lane_colors.clear();
 588        self.parent_to_lanes.clear();
 589        self.commits.clear();
 590        self.lines.clear();
 591        self.active_commit_lines.clear();
 592        self.active_commit_lines_by_parent.clear();
 593        self.next_color = BranchColor(0);
 594        self.max_commit_count = AllCommitCount::NotLoaded;
 595        self.max_lanes = 0;
 596    }
 597
 598    fn first_empty_lane_idx(&mut self) -> ActiveLaneIdx {
 599        self.lane_states
 600            .iter()
 601            .position(LaneState::is_empty)
 602            .unwrap_or_else(|| {
 603                self.lane_states.push(LaneState::Empty);
 604                self.lane_states.len() - 1
 605            })
 606    }
 607
 608    fn get_lane_color(&mut self, lane_idx: ActiveLaneIdx) -> BranchColor {
 609        let accent_colors_count = self.accent_colors_count;
 610        *self.lane_colors.entry(lane_idx).or_insert_with(|| {
 611            let color_idx = self.next_color;
 612            self.next_color = BranchColor((self.next_color.0 + 1) % accent_colors_count as u8);
 613            color_idx
 614        })
 615    }
 616
 617    fn add_commits(&mut self, commits: &[Arc<InitialGraphCommitData>]) {
 618        self.commits.reserve(commits.len());
 619        self.lines.reserve(commits.len() / 2);
 620
 621        for commit in commits.iter() {
 622            let commit_row = self.commits.len();
 623
 624            let commit_lane = self
 625                .parent_to_lanes
 626                .get(&commit.sha)
 627                .and_then(|lanes| lanes.first().copied());
 628
 629            let commit_lane = commit_lane.unwrap_or_else(|| self.first_empty_lane_idx());
 630
 631            let commit_color = self.get_lane_color(commit_lane);
 632
 633            if let Some(lanes) = self.parent_to_lanes.remove(&commit.sha) {
 634                for lane_column in lanes {
 635                    let state = &mut self.lane_states[lane_column];
 636
 637                    if let LaneState::Active {
 638                        starting_row,
 639                        segments,
 640                        ..
 641                    } = state
 642                    {
 643                        if let Some(CommitLineSegment::Curve {
 644                            to_column,
 645                            curve_kind: CurveKind::Merge,
 646                            ..
 647                        }) = segments.first_mut()
 648                        {
 649                            let curve_row = *starting_row + 1;
 650                            let would_overlap =
 651                                if lane_column != commit_lane && curve_row < commit_row {
 652                                    self.commits[curve_row..commit_row]
 653                                        .iter()
 654                                        .any(|c| c.lane == commit_lane)
 655                                } else {
 656                                    false
 657                                };
 658
 659                            if would_overlap {
 660                                *to_column = lane_column;
 661                            }
 662                        }
 663                    }
 664
 665                    if let Some(commit_line) =
 666                        state.to_commit_lines(commit_row, lane_column, commit_lane, commit_color)
 667                    {
 668                        self.lines.push(Rc::new(commit_line));
 669                    }
 670                }
 671            }
 672
 673            commit
 674                .parents
 675                .iter()
 676                .enumerate()
 677                .for_each(|(parent_idx, parent)| {
 678                    if parent_idx == 0 {
 679                        self.lane_states[commit_lane] = LaneState::Active {
 680                            parent: *parent,
 681                            child: commit.sha,
 682                            color: Some(commit_color),
 683                            starting_col: commit_lane,
 684                            starting_row: commit_row,
 685                            destination_column: None,
 686                            segments: smallvec![CommitLineSegment::Straight { to_row: usize::MAX }],
 687                        };
 688
 689                        self.parent_to_lanes
 690                            .entry(*parent)
 691                            .or_default()
 692                            .push(commit_lane);
 693                    } else {
 694                        let new_lane = self.first_empty_lane_idx();
 695
 696                        self.lane_states[new_lane] = LaneState::Active {
 697                            parent: *parent,
 698                            child: commit.sha,
 699                            color: None,
 700                            starting_col: commit_lane,
 701                            starting_row: commit_row,
 702                            destination_column: None,
 703                            segments: smallvec![CommitLineSegment::Curve {
 704                                to_column: usize::MAX,
 705                                on_row: usize::MAX,
 706                                curve_kind: CurveKind::Merge,
 707                            },],
 708                        };
 709
 710                        self.parent_to_lanes
 711                            .entry(*parent)
 712                            .or_default()
 713                            .push(new_lane);
 714                    }
 715                });
 716
 717            self.max_lanes = self.max_lanes.max(self.lane_states.len());
 718
 719            self.commits.push(Rc::new(CommitEntry {
 720                data: commit.clone(),
 721                lane: commit_lane,
 722                color_idx: commit_color.0 as usize,
 723            }));
 724        }
 725
 726        self.max_commit_count = AllCommitCount::Loaded(self.commits.len());
 727    }
 728}
 729
 730pub fn init(cx: &mut App) {
 731    workspace::register_serializable_item::<GitGraph>(cx);
 732
 733    cx.observe_new(|workspace: &mut workspace::Workspace, _, _| {
 734        workspace.register_action_renderer(|div, workspace, _, cx| {
 735            div.when(
 736                workspace.project().read(cx).active_repository(cx).is_some(),
 737                |div| {
 738                    let workspace = workspace.weak_handle();
 739
 740                    div.on_action({
 741                        let workspace = workspace.clone();
 742                        move |_: &git_ui::git_panel::Open, window, cx| {
 743                            workspace
 744                                .update(cx, |workspace, cx| {
 745                                    let Some(repo) =
 746                                        workspace.project().read(cx).active_repository(cx)
 747                                    else {
 748                                        return;
 749                                    };
 750                                    let selected_repo_id = repo.read(cx).id;
 751
 752                                    let existing = workspace
 753                                        .items_of_type::<GitGraph>(cx)
 754                                        .find(|graph| graph.read(cx).repo_id == selected_repo_id);
 755                                    if let Some(existing) = existing {
 756                                        workspace.activate_item(&existing, true, true, window, cx);
 757                                        return;
 758                                    }
 759
 760                                    let git_store =
 761                                        workspace.project().read(cx).git_store().clone();
 762                                    let workspace_handle = workspace.weak_handle();
 763                                    let git_graph = cx.new(|cx| {
 764                                        GitGraph::new(
 765                                            selected_repo_id,
 766                                            git_store,
 767                                            workspace_handle,
 768                                            window,
 769                                            cx,
 770                                        )
 771                                    });
 772                                    workspace.add_item_to_active_pane(
 773                                        Box::new(git_graph),
 774                                        None,
 775                                        true,
 776                                        window,
 777                                        cx,
 778                                    );
 779                                })
 780                                .ok();
 781                        }
 782                    })
 783                    .on_action(
 784                        move |action: &git_ui::git_panel::OpenAtCommit, window, cx| {
 785                            let sha = action.sha.clone();
 786                            workspace
 787                                .update(cx, |workspace, cx| {
 788                                    let Some(repo) =
 789                                        workspace.project().read(cx).active_repository(cx)
 790                                    else {
 791                                        return;
 792                                    };
 793                                    let selected_repo_id = repo.read(cx).id;
 794
 795                                    let existing = workspace
 796                                        .items_of_type::<GitGraph>(cx)
 797                                        .find(|graph| graph.read(cx).repo_id == selected_repo_id);
 798                                    if let Some(existing) = existing {
 799                                        existing.update(cx, |graph, cx| {
 800                                            graph.select_commit_by_sha(sha.as_str(), cx);
 801                                        });
 802                                        workspace.activate_item(&existing, true, true, window, cx);
 803                                        return;
 804                                    }
 805
 806                                    let git_store =
 807                                        workspace.project().read(cx).git_store().clone();
 808                                    let workspace_handle = workspace.weak_handle();
 809                                    let git_graph = cx.new(|cx| {
 810                                        let mut graph = GitGraph::new(
 811                                            selected_repo_id,
 812                                            git_store,
 813                                            workspace_handle,
 814                                            window,
 815                                            cx,
 816                                        );
 817                                        graph.select_commit_by_sha(sha.as_str(), cx);
 818                                        graph
 819                                    });
 820                                    workspace.add_item_to_active_pane(
 821                                        Box::new(git_graph),
 822                                        None,
 823                                        true,
 824                                        window,
 825                                        cx,
 826                                    );
 827                                })
 828                                .ok();
 829                        },
 830                    )
 831                },
 832            )
 833        });
 834    })
 835    .detach();
 836}
 837
 838fn lane_center_x(bounds: Bounds<Pixels>, lane: f32) -> Pixels {
 839    bounds.origin.x + LEFT_PADDING + lane * LANE_WIDTH + LANE_WIDTH / 2.0
 840}
 841
 842fn to_row_center(
 843    to_row: usize,
 844    row_height: Pixels,
 845    scroll_offset: Pixels,
 846    bounds: Bounds<Pixels>,
 847) -> Pixels {
 848    bounds.origin.y + to_row as f32 * row_height + row_height / 2.0 - scroll_offset
 849}
 850
 851fn draw_commit_circle(center_x: Pixels, center_y: Pixels, color: Hsla, window: &mut Window) {
 852    let radius = COMMIT_CIRCLE_RADIUS;
 853
 854    let mut builder = PathBuilder::fill();
 855
 856    // Start at the rightmost point of the circle
 857    builder.move_to(point(center_x + radius, center_y));
 858
 859    // Draw the circle using two arc_to calls (top half, then bottom half)
 860    builder.arc_to(
 861        point(radius, radius),
 862        px(0.),
 863        false,
 864        true,
 865        point(center_x - radius, center_y),
 866    );
 867    builder.arc_to(
 868        point(radius, radius),
 869        px(0.),
 870        false,
 871        true,
 872        point(center_x + radius, center_y),
 873    );
 874    builder.close();
 875
 876    if let Ok(path) = builder.build() {
 877        window.paint_path(path, color);
 878    }
 879}
 880
 881fn compute_diff_stats(diff: &CommitDiff) -> (usize, usize) {
 882    diff.files.iter().fold((0, 0), |(added, removed), file| {
 883        let old_text = file.old_text.as_deref().unwrap_or("");
 884        let new_text = file.new_text.as_deref().unwrap_or("");
 885        let hunks = line_diff(old_text, new_text);
 886        hunks
 887            .iter()
 888            .fold((added, removed), |(a, r), (old_range, new_range)| {
 889                (
 890                    a + (new_range.end - new_range.start) as usize,
 891                    r + (old_range.end - old_range.start) as usize,
 892                )
 893            })
 894    })
 895}
 896
 897pub struct GitGraph {
 898    focus_handle: FocusHandle,
 899    search_state: SearchState,
 900    graph_data: GraphData,
 901    git_store: Entity<GitStore>,
 902    workspace: WeakEntity<Workspace>,
 903    context_menu: Option<(Entity<ContextMenu>, Point<Pixels>, Subscription)>,
 904    row_height: Pixels,
 905    table_interaction_state: Entity<TableInteractionState>,
 906    column_widths: Entity<RedistributableColumnsState>,
 907    selected_entry_idx: Option<usize>,
 908    hovered_entry_idx: Option<usize>,
 909    graph_canvas_bounds: Rc<Cell<Option<Bounds<Pixels>>>>,
 910    log_source: LogSource,
 911    log_order: LogOrder,
 912    selected_commit_diff: Option<CommitDiff>,
 913    selected_commit_diff_stats: Option<(usize, usize)>,
 914    _commit_diff_task: Option<Task<()>>,
 915    commit_details_split_state: Entity<SplitState>,
 916    repo_id: RepositoryId,
 917    changed_files_scroll_handle: UniformListScrollHandle,
 918    pending_select_sha: Option<Oid>,
 919}
 920
 921impl GitGraph {
 922    fn invalidate_state(&mut self, cx: &mut Context<Self>) {
 923        self.graph_data.clear();
 924        self.search_state.matches.clear();
 925        self.search_state.selected_index = None;
 926        self.search_state.state.next_state();
 927        cx.notify();
 928    }
 929
 930    fn row_height(cx: &App) -> Pixels {
 931        let settings = ThemeSettings::get_global(cx);
 932        let font_size = settings.buffer_font_size(cx);
 933        font_size + px(12.0)
 934    }
 935
 936    fn graph_canvas_content_width(&self) -> Pixels {
 937        (LANE_WIDTH * self.graph_data.max_lanes.max(6) as f32) + LEFT_PADDING * 2.0
 938    }
 939
 940    fn preview_column_fractions(&self, window: &Window, cx: &App) -> [f32; 5] {
 941        let fractions = self
 942            .column_widths
 943            .read(cx)
 944            .preview_fractions(window.rem_size());
 945        [
 946            fractions[0],
 947            fractions[1],
 948            fractions[2],
 949            fractions[3],
 950            fractions[4],
 951        ]
 952    }
 953
 954    fn table_column_width_config(&self, window: &Window, cx: &App) -> ColumnWidthConfig {
 955        let [_, description, date, author, commit] = self.preview_column_fractions(window, cx);
 956        let table_total = description + date + author + commit;
 957
 958        let widths = if table_total > 0.0 {
 959            vec![
 960                DefiniteLength::Fraction(description / table_total),
 961                DefiniteLength::Fraction(date / table_total),
 962                DefiniteLength::Fraction(author / table_total),
 963                DefiniteLength::Fraction(commit / table_total),
 964            ]
 965        } else {
 966            vec![
 967                DefiniteLength::Fraction(0.25),
 968                DefiniteLength::Fraction(0.25),
 969                DefiniteLength::Fraction(0.25),
 970                DefiniteLength::Fraction(0.25),
 971            ]
 972        };
 973
 974        ColumnWidthConfig::explicit(widths)
 975    }
 976
 977    fn graph_viewport_width(&self, window: &Window, cx: &App) -> Pixels {
 978        self.column_widths
 979            .read(cx)
 980            .preview_column_width(0, window)
 981            .unwrap_or_else(|| self.graph_canvas_content_width())
 982    }
 983
 984    pub fn new(
 985        repo_id: RepositoryId,
 986        git_store: Entity<GitStore>,
 987        workspace: WeakEntity<Workspace>,
 988        window: &mut Window,
 989        cx: &mut Context<Self>,
 990    ) -> Self {
 991        let focus_handle = cx.focus_handle();
 992        cx.on_focus(&focus_handle, window, |_, _, cx| cx.notify())
 993            .detach();
 994
 995        let accent_colors = cx.theme().accents();
 996        let graph = GraphData::new(accent_colors_count(accent_colors));
 997        let log_source = LogSource::default();
 998        let log_order = LogOrder::default();
 999
1000        cx.subscribe(&git_store, |this, _, event, cx| match event {
1001            GitStoreEvent::RepositoryUpdated(updated_repo_id, repo_event, _) => {
1002                if this.repo_id == *updated_repo_id {
1003                    if let Some(repository) = this.get_repository(cx) {
1004                        this.on_repository_event(repository, repo_event, cx);
1005                    }
1006                }
1007            }
1008            _ => {}
1009        })
1010        .detach();
1011
1012        let search_editor = cx.new(|cx| {
1013            let mut editor = Editor::single_line(window, cx);
1014            editor.set_placeholder_text("Search commits…", window, cx);
1015            editor
1016        });
1017
1018        let table_interaction_state = cx.new(|cx| TableInteractionState::new(cx));
1019        let column_widths = cx.new(|_cx| {
1020            RedistributableColumnsState::new(
1021                5,
1022                vec![
1023                    DefiniteLength::Fraction(0.14),
1024                    DefiniteLength::Fraction(0.6192),
1025                    DefiniteLength::Fraction(0.1032),
1026                    DefiniteLength::Fraction(0.086),
1027                    DefiniteLength::Fraction(0.0516),
1028                ],
1029                vec![
1030                    TableResizeBehavior::Resizable,
1031                    TableResizeBehavior::Resizable,
1032                    TableResizeBehavior::Resizable,
1033                    TableResizeBehavior::Resizable,
1034                    TableResizeBehavior::Resizable,
1035                ],
1036            )
1037        });
1038        let mut row_height = Self::row_height(cx);
1039
1040        cx.observe_global_in::<settings::SettingsStore>(window, move |this, _window, cx| {
1041            let new_row_height = Self::row_height(cx);
1042            if new_row_height != row_height {
1043                this.row_height = new_row_height;
1044                this.table_interaction_state.update(cx, |state, _cx| {
1045                    state.scroll_handle.0.borrow_mut().last_item_size = None;
1046                });
1047                row_height = new_row_height;
1048                cx.notify();
1049            }
1050        })
1051        .detach();
1052
1053        let mut this = GitGraph {
1054            focus_handle,
1055            git_store,
1056            search_state: SearchState {
1057                case_sensitive: false,
1058                editor: search_editor,
1059                matches: IndexSet::default(),
1060                selected_index: None,
1061                state: QueryState::Empty,
1062            },
1063            workspace,
1064            graph_data: graph,
1065            _commit_diff_task: None,
1066            context_menu: None,
1067            row_height,
1068            table_interaction_state,
1069            column_widths,
1070            selected_entry_idx: None,
1071            hovered_entry_idx: None,
1072            graph_canvas_bounds: Rc::new(Cell::new(None)),
1073            selected_commit_diff: None,
1074            selected_commit_diff_stats: None,
1075            log_source,
1076            log_order,
1077            commit_details_split_state: cx.new(|_cx| SplitState::new()),
1078            repo_id,
1079            changed_files_scroll_handle: UniformListScrollHandle::new(),
1080            pending_select_sha: None,
1081        };
1082
1083        this.fetch_initial_graph_data(cx);
1084        this
1085    }
1086
1087    fn on_repository_event(
1088        &mut self,
1089        repository: Entity<Repository>,
1090        event: &RepositoryEvent,
1091        cx: &mut Context<Self>,
1092    ) {
1093        match event {
1094            RepositoryEvent::GraphEvent((source, order), event)
1095                if source == &self.log_source && order == &self.log_order =>
1096            {
1097                match event {
1098                    GitGraphEvent::FullyLoaded => {
1099                        if let Some(pending_sha_index) =
1100                            self.pending_select_sha.take().and_then(|oid| {
1101                                repository
1102                                    .read(cx)
1103                                    .get_graph_data(source.clone(), *order)
1104                                    .and_then(|data| data.commit_oid_to_index.get(&oid).copied())
1105                            })
1106                        {
1107                            self.select_entry(pending_sha_index, ScrollStrategy::Nearest, cx);
1108                        }
1109                    }
1110                    GitGraphEvent::LoadingError => {
1111                        // todo(git_graph): Wire this up with the UI
1112                    }
1113                    GitGraphEvent::CountUpdated(commit_count) => {
1114                        let old_count = self.graph_data.commits.len();
1115
1116                        if let Some(pending_selection_index) =
1117                            repository.update(cx, |repository, cx| {
1118                                let GraphDataResponse {
1119                                    commits,
1120                                    is_loading,
1121                                    error: _,
1122                                } = repository.graph_data(
1123                                    source.clone(),
1124                                    *order,
1125                                    old_count..*commit_count,
1126                                    cx,
1127                                );
1128                                self.graph_data.add_commits(commits);
1129
1130                                let pending_sha_index = self.pending_select_sha.and_then(|oid| {
1131                                    repository.get_graph_data(source.clone(), *order).and_then(
1132                                        |data| data.commit_oid_to_index.get(&oid).copied(),
1133                                    )
1134                                });
1135
1136                                if !is_loading && pending_sha_index.is_none() {
1137                                    self.pending_select_sha.take();
1138                                }
1139
1140                                pending_sha_index
1141                            })
1142                        {
1143                            self.select_entry(pending_selection_index, ScrollStrategy::Nearest, cx);
1144                            self.pending_select_sha.take();
1145                        }
1146
1147                        cx.notify();
1148                    }
1149                }
1150            }
1151            RepositoryEvent::HeadChanged | RepositoryEvent::BranchListChanged => {
1152                self.pending_select_sha = None;
1153                // Only invalidate if we scanned atleast once,
1154                // meaning we are not inside the initial repo loading state
1155                // NOTE: this fixes an loading performance regression
1156                if repository.read(cx).scan_id > 1 {
1157                    self.invalidate_state(cx);
1158                }
1159            }
1160            RepositoryEvent::StashEntriesChanged if self.log_source == LogSource::All => {
1161                self.pending_select_sha = None;
1162                if repository.read(cx).scan_id > 1 {
1163                    self.invalidate_state(cx);
1164                }
1165            }
1166            RepositoryEvent::GraphEvent(_, _) => {}
1167            _ => {}
1168        }
1169    }
1170
1171    fn fetch_initial_graph_data(&mut self, cx: &mut App) {
1172        if let Some(repository) = self.get_repository(cx) {
1173            repository.update(cx, |repository, cx| {
1174                let commits = repository
1175                    .graph_data(self.log_source.clone(), self.log_order, 0..usize::MAX, cx)
1176                    .commits;
1177                self.graph_data.add_commits(commits);
1178            });
1179        }
1180    }
1181
1182    fn get_repository(&self, cx: &App) -> Option<Entity<Repository>> {
1183        let git_store = self.git_store.read(cx);
1184        git_store.repositories().get(&self.repo_id).cloned()
1185    }
1186
1187    fn render_chip(&self, name: &SharedString, accent_color: gpui::Hsla) -> impl IntoElement {
1188        Chip::new(name.clone())
1189            .label_size(LabelSize::Small)
1190            .bg_color(accent_color.opacity(0.1))
1191            .border_color(accent_color.opacity(0.5))
1192    }
1193
1194    fn render_table_rows(
1195        &mut self,
1196        range: Range<usize>,
1197        _window: &mut Window,
1198        cx: &mut Context<Self>,
1199    ) -> Vec<Vec<AnyElement>> {
1200        let repository = self.get_repository(cx);
1201
1202        let row_height = self.row_height;
1203
1204        // We fetch data outside the visible viewport to avoid loading entries when
1205        // users scroll through the git graph
1206        if let Some(repository) = repository.as_ref() {
1207            const FETCH_RANGE: usize = 100;
1208            repository.update(cx, |repository, cx| {
1209                self.graph_data.commits[range.start.saturating_sub(FETCH_RANGE)
1210                    ..(range.end + FETCH_RANGE)
1211                        .min(self.graph_data.commits.len().saturating_sub(1))]
1212                    .iter()
1213                    .for_each(|commit| {
1214                        repository.fetch_commit_data(commit.data.sha, cx);
1215                    });
1216            });
1217        }
1218
1219        range
1220            .map(|idx| {
1221                let Some((commit, repository)) =
1222                    self.graph_data.commits.get(idx).zip(repository.as_ref())
1223                else {
1224                    return vec![
1225                        div().h(row_height).into_any_element(),
1226                        div().h(row_height).into_any_element(),
1227                        div().h(row_height).into_any_element(),
1228                        div().h(row_height).into_any_element(),
1229                    ];
1230                };
1231
1232                let data = repository.update(cx, |repository, cx| {
1233                    repository.fetch_commit_data(commit.data.sha, cx).clone()
1234                });
1235
1236                let short_sha = commit.data.sha.display_short();
1237                let mut formatted_time = String::new();
1238                let subject: SharedString;
1239                let author_name: SharedString;
1240
1241                if let CommitDataState::Loaded(data) = data {
1242                    subject = data.subject.clone();
1243                    author_name = data.author_name.clone();
1244                    formatted_time = format_timestamp(data.commit_timestamp);
1245                } else {
1246                    subject = "Loading…".into();
1247                    author_name = "".into();
1248                }
1249
1250                let accent_colors = cx.theme().accents();
1251                let accent_color = accent_colors
1252                    .0
1253                    .get(commit.color_idx)
1254                    .copied()
1255                    .unwrap_or_else(|| accent_colors.0.first().copied().unwrap_or_default());
1256
1257                let is_selected = self.selected_entry_idx == Some(idx);
1258                let is_matched = self.search_state.matches.contains(&commit.data.sha);
1259                let column_label = |label: SharedString| {
1260                    Label::new(label)
1261                        .when(!is_selected, |c| c.color(Color::Muted))
1262                        .truncate()
1263                        .into_any_element()
1264                };
1265
1266                let subject_label = if is_matched {
1267                    let query = match &self.search_state.state {
1268                        QueryState::Confirmed((query, _)) => Some(query.clone()),
1269                        _ => None,
1270                    };
1271                    let highlight_ranges = query
1272                        .and_then(|q| {
1273                            let ranges = if self.search_state.case_sensitive {
1274                                subject
1275                                    .match_indices(q.as_str())
1276                                    .map(|(start, matched)| start..start + matched.len())
1277                                    .collect::<Vec<_>>()
1278                            } else {
1279                                let q = q.to_lowercase();
1280                                let subject_lower = subject.to_lowercase();
1281
1282                                subject_lower
1283                                    .match_indices(&q)
1284                                    .filter_map(|(start, matched)| {
1285                                        let end = start + matched.len();
1286                                        subject.is_char_boundary(start).then_some(()).and_then(
1287                                            |_| subject.is_char_boundary(end).then_some(start..end),
1288                                        )
1289                                    })
1290                                    .collect::<Vec<_>>()
1291                            };
1292
1293                            (!ranges.is_empty()).then_some(ranges)
1294                        })
1295                        .unwrap_or_default();
1296                    HighlightedLabel::from_ranges(subject.clone(), highlight_ranges)
1297                        .when(!is_selected, |c| c.color(Color::Muted))
1298                        .truncate()
1299                        .into_any_element()
1300                } else {
1301                    column_label(subject.clone())
1302                };
1303
1304                vec![
1305                    div()
1306                        .id(ElementId::NamedInteger("commit-subject".into(), idx as u64))
1307                        .overflow_hidden()
1308                        .tooltip(Tooltip::text(subject))
1309                        .child(
1310                            h_flex()
1311                                .gap_2()
1312                                .overflow_hidden()
1313                                .children((!commit.data.ref_names.is_empty()).then(|| {
1314                                    h_flex().gap_1().children(
1315                                        commit
1316                                            .data
1317                                            .ref_names
1318                                            .iter()
1319                                            .map(|name| self.render_chip(name, accent_color)),
1320                                    )
1321                                }))
1322                                .child(subject_label),
1323                        )
1324                        .into_any_element(),
1325                    column_label(formatted_time.into()),
1326                    column_label(author_name),
1327                    column_label(short_sha.into()),
1328                ]
1329            })
1330            .collect()
1331    }
1332
1333    fn cancel(&mut self, _: &Cancel, _window: &mut Window, cx: &mut Context<Self>) {
1334        self.selected_entry_idx = None;
1335        self.selected_commit_diff = None;
1336        self.selected_commit_diff_stats = None;
1337        cx.notify();
1338    }
1339
1340    fn select_first(&mut self, _: &SelectFirst, _window: &mut Window, cx: &mut Context<Self>) {
1341        self.select_entry(0, ScrollStrategy::Nearest, cx);
1342    }
1343
1344    fn select_prev(&mut self, _: &SelectPrevious, window: &mut Window, cx: &mut Context<Self>) {
1345        if let Some(selected_entry_idx) = &self.selected_entry_idx {
1346            self.select_entry(
1347                selected_entry_idx.saturating_sub(1),
1348                ScrollStrategy::Nearest,
1349                cx,
1350            );
1351        } else {
1352            self.select_first(&SelectFirst, window, cx);
1353        }
1354    }
1355
1356    fn select_next(&mut self, _: &SelectNext, window: &mut Window, cx: &mut Context<Self>) {
1357        if let Some(selected_entry_idx) = &self.selected_entry_idx {
1358            self.select_entry(
1359                selected_entry_idx
1360                    .saturating_add(1)
1361                    .min(self.graph_data.commits.len().saturating_sub(1)),
1362                ScrollStrategy::Nearest,
1363                cx,
1364            );
1365        } else {
1366            self.select_prev(&SelectPrevious, window, cx);
1367        }
1368    }
1369
1370    fn select_last(&mut self, _: &SelectLast, _window: &mut Window, cx: &mut Context<Self>) {
1371        self.select_entry(
1372            self.graph_data.commits.len().saturating_sub(1),
1373            ScrollStrategy::Nearest,
1374            cx,
1375        );
1376    }
1377
1378    fn confirm(&mut self, _: &menu::Confirm, window: &mut Window, cx: &mut Context<Self>) {
1379        self.open_selected_commit_view(window, cx);
1380    }
1381
1382    fn search(&mut self, query: SharedString, cx: &mut Context<Self>) {
1383        let Some(repo) = self.get_repository(cx) else {
1384            return;
1385        };
1386
1387        self.search_state.matches.clear();
1388        self.search_state.selected_index = None;
1389        self.search_state.editor.update(cx, |editor, _cx| {
1390            editor.set_text_style_refinement(Default::default());
1391        });
1392
1393        if query.as_str().is_empty() {
1394            self.search_state.state = QueryState::Empty;
1395            cx.notify();
1396            return;
1397        }
1398
1399        let (request_tx, request_rx) = smol::channel::unbounded::<Oid>();
1400
1401        repo.update(cx, |repo, cx| {
1402            repo.search_commits(
1403                self.log_source.clone(),
1404                SearchCommitArgs {
1405                    query: query.clone(),
1406                    case_sensitive: self.search_state.case_sensitive,
1407                },
1408                request_tx,
1409                cx,
1410            );
1411        });
1412
1413        let search_task = cx.spawn(async move |this, cx| {
1414            while let Ok(first_oid) = request_rx.recv().await {
1415                let mut pending_oids = vec![first_oid];
1416                while let Ok(oid) = request_rx.try_recv() {
1417                    pending_oids.push(oid);
1418                }
1419
1420                this.update(cx, |this, cx| {
1421                    if this.search_state.selected_index.is_none() {
1422                        this.search_state.selected_index = Some(0);
1423                        this.select_commit_by_sha(first_oid, cx);
1424                    }
1425
1426                    this.search_state.matches.extend(pending_oids);
1427                    cx.notify();
1428                })
1429                .ok();
1430            }
1431
1432            this.update(cx, |this, cx| {
1433                if this.search_state.matches.is_empty() {
1434                    this.search_state.editor.update(cx, |editor, cx| {
1435                        editor.set_text_style_refinement(TextStyleRefinement {
1436                            color: Some(Color::Error.color(cx)),
1437                            ..Default::default()
1438                        });
1439                    });
1440                }
1441            })
1442            .ok();
1443        });
1444
1445        self.search_state.state = QueryState::Confirmed((query, search_task));
1446    }
1447
1448    fn confirm_search(&mut self, _: &menu::Confirm, _window: &mut Window, cx: &mut Context<Self>) {
1449        let query = self.search_state.editor.read(cx).text(cx).into();
1450        self.search(query, cx);
1451    }
1452
1453    fn select_entry(
1454        &mut self,
1455        idx: usize,
1456        scroll_strategy: ScrollStrategy,
1457        cx: &mut Context<Self>,
1458    ) {
1459        if self.selected_entry_idx == Some(idx) {
1460            return;
1461        }
1462
1463        self.selected_entry_idx = Some(idx);
1464        self.selected_commit_diff = None;
1465        self.selected_commit_diff_stats = None;
1466        self.changed_files_scroll_handle
1467            .scroll_to_item(0, ScrollStrategy::Top);
1468        self.table_interaction_state.update(cx, |state, cx| {
1469            state.scroll_handle.scroll_to_item(idx, scroll_strategy);
1470            cx.notify();
1471        });
1472
1473        let Some(commit) = self.graph_data.commits.get(idx) else {
1474            return;
1475        };
1476
1477        let sha = commit.data.sha.to_string();
1478
1479        let Some(repository) = self.get_repository(cx) else {
1480            return;
1481        };
1482
1483        let diff_receiver = repository.update(cx, |repo, _| repo.load_commit_diff(sha));
1484
1485        self._commit_diff_task = Some(cx.spawn(async move |this, cx| {
1486            if let Ok(Ok(diff)) = diff_receiver.await {
1487                this.update(cx, |this, cx| {
1488                    let stats = compute_diff_stats(&diff);
1489                    this.selected_commit_diff = Some(diff);
1490                    this.selected_commit_diff_stats = Some(stats);
1491                    cx.notify();
1492                })
1493                .ok();
1494            }
1495        }));
1496
1497        cx.notify();
1498    }
1499
1500    fn select_previous_match(&mut self, cx: &mut Context<Self>) {
1501        if self.search_state.matches.is_empty() {
1502            return;
1503        }
1504
1505        let mut prev_selection = self.search_state.selected_index.unwrap_or_default();
1506
1507        if prev_selection == 0 {
1508            prev_selection = self.search_state.matches.len() - 1;
1509        } else {
1510            prev_selection -= 1;
1511        }
1512
1513        let Some(&oid) = self.search_state.matches.get_index(prev_selection) else {
1514            return;
1515        };
1516
1517        self.search_state.selected_index = Some(prev_selection);
1518        self.select_commit_by_sha(oid, cx);
1519    }
1520
1521    fn select_next_match(&mut self, cx: &mut Context<Self>) {
1522        if self.search_state.matches.is_empty() {
1523            return;
1524        }
1525
1526        let mut next_selection = self
1527            .search_state
1528            .selected_index
1529            .map(|index| index + 1)
1530            .unwrap_or_default();
1531
1532        if next_selection >= self.search_state.matches.len() {
1533            next_selection = 0;
1534        }
1535
1536        let Some(&oid) = self.search_state.matches.get_index(next_selection) else {
1537            return;
1538        };
1539
1540        self.search_state.selected_index = Some(next_selection);
1541        self.select_commit_by_sha(oid, cx);
1542    }
1543
1544    pub fn set_repo_id(&mut self, repo_id: RepositoryId, cx: &mut Context<Self>) {
1545        if repo_id != self.repo_id
1546            && self
1547                .git_store
1548                .read(cx)
1549                .repositories()
1550                .contains_key(&repo_id)
1551        {
1552            self.repo_id = repo_id;
1553            self.invalidate_state(cx);
1554        }
1555    }
1556
1557    pub fn select_commit_by_sha(&mut self, sha: impl TryInto<Oid>, cx: &mut Context<Self>) {
1558        fn inner(this: &mut GitGraph, oid: Oid, cx: &mut Context<GitGraph>) {
1559            let Some(selected_repository) = this.get_repository(cx) else {
1560                return;
1561            };
1562
1563            let Some(index) = selected_repository
1564                .read(cx)
1565                .get_graph_data(this.log_source.clone(), this.log_order)
1566                .and_then(|data| data.commit_oid_to_index.get(&oid))
1567                .copied()
1568            else {
1569                return;
1570            };
1571
1572            this.select_entry(index, ScrollStrategy::Center, cx);
1573        }
1574
1575        if let Ok(oid) = sha.try_into() {
1576            inner(self, oid, cx);
1577        }
1578    }
1579
1580    fn open_selected_commit_view(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1581        let Some(selected_entry_index) = self.selected_entry_idx else {
1582            return;
1583        };
1584
1585        self.open_commit_view(selected_entry_index, window, cx);
1586    }
1587
1588    fn open_commit_view(
1589        &mut self,
1590        entry_index: usize,
1591        window: &mut Window,
1592        cx: &mut Context<Self>,
1593    ) {
1594        let Some(commit_entry) = self.graph_data.commits.get(entry_index) else {
1595            return;
1596        };
1597
1598        let Some(repository) = self.get_repository(cx) else {
1599            return;
1600        };
1601
1602        CommitView::open(
1603            commit_entry.data.sha.to_string(),
1604            repository.downgrade(),
1605            self.workspace.clone(),
1606            None,
1607            None,
1608            window,
1609            cx,
1610        );
1611    }
1612
1613    fn get_remote(
1614        &self,
1615        repository: &Repository,
1616        _window: &mut Window,
1617        cx: &mut App,
1618    ) -> Option<GitRemote> {
1619        let remote_url = repository.default_remote_url()?;
1620        let provider_registry = GitHostingProviderRegistry::default_global(cx);
1621        let (provider, parsed) = parse_git_remote_url(provider_registry, &remote_url)?;
1622        Some(GitRemote {
1623            host: provider,
1624            owner: parsed.owner.into(),
1625            repo: parsed.repo.into(),
1626        })
1627    }
1628
1629    fn render_search_bar(&self, cx: &mut Context<Self>) -> impl IntoElement {
1630        let color = cx.theme().colors();
1631        let query_focus_handle = self.search_state.editor.focus_handle(cx);
1632        let search_options = {
1633            let mut options = SearchOptions::NONE;
1634            options.set(
1635                SearchOptions::CASE_SENSITIVE,
1636                self.search_state.case_sensitive,
1637            );
1638            options
1639        };
1640
1641        h_flex()
1642            .w_full()
1643            .p_1p5()
1644            .gap_1p5()
1645            .border_b_1()
1646            .border_color(color.border_variant)
1647            .child(
1648                h_flex()
1649                    .h_8()
1650                    .flex_1()
1651                    .min_w_0()
1652                    .px_1p5()
1653                    .gap_1()
1654                    .border_1()
1655                    .border_color(color.border)
1656                    .rounded_md()
1657                    .bg(color.toolbar_background)
1658                    .on_action(cx.listener(Self::confirm_search))
1659                    .child(self.search_state.editor.clone())
1660                    .child(SearchOption::CaseSensitive.as_button(
1661                        search_options,
1662                        SearchSource::Buffer,
1663                        query_focus_handle,
1664                    )),
1665            )
1666            .child(
1667                h_flex()
1668                    .min_w_64()
1669                    .gap_1()
1670                    .child({
1671                        let focus_handle = self.focus_handle.clone();
1672                        IconButton::new("git-graph-search-prev", IconName::ChevronLeft)
1673                            .shape(ui::IconButtonShape::Square)
1674                            .icon_size(IconSize::Small)
1675                            .tooltip(move |_, cx| {
1676                                Tooltip::for_action_in(
1677                                    "Select Previous Match",
1678                                    &SelectPreviousMatch,
1679                                    &focus_handle,
1680                                    cx,
1681                                )
1682                            })
1683                            .map(|this| {
1684                                if self.search_state.matches.is_empty() {
1685                                    this.disabled(true)
1686                                } else {
1687                                    this.disabled(false).on_click(cx.listener(|this, _, _, cx| {
1688                                        this.select_previous_match(cx);
1689                                    }))
1690                                }
1691                            })
1692                    })
1693                    .child({
1694                        let focus_handle = self.focus_handle.clone();
1695                        IconButton::new("git-graph-search-next", IconName::ChevronRight)
1696                            .shape(ui::IconButtonShape::Square)
1697                            .icon_size(IconSize::Small)
1698                            .tooltip(move |_, cx| {
1699                                Tooltip::for_action_in(
1700                                    "Select Next Match",
1701                                    &SelectNextMatch,
1702                                    &focus_handle,
1703                                    cx,
1704                                )
1705                            })
1706                            .map(|this| {
1707                                if self.search_state.matches.is_empty() {
1708                                    this.disabled(true)
1709                                } else {
1710                                    this.disabled(false).on_click(cx.listener(|this, _, _, cx| {
1711                                        this.select_next_match(cx);
1712                                    }))
1713                                }
1714                            })
1715                    })
1716                    .child(
1717                        h_flex()
1718                            .gap_1p5()
1719                            .child(
1720                                Label::new(format!(
1721                                    "{}/{}",
1722                                    self.search_state
1723                                        .selected_index
1724                                        .map(|index| index + 1)
1725                                        .unwrap_or(0),
1726                                    self.search_state.matches.len()
1727                                ))
1728                                .size(LabelSize::Small)
1729                                .when(self.search_state.matches.is_empty(), |this| {
1730                                    this.color(Color::Disabled)
1731                                }),
1732                            )
1733                            .when(
1734                                matches!(
1735                                    &self.search_state.state,
1736                                    QueryState::Confirmed((_, task)) if !task.is_ready()
1737                                ),
1738                                |this| {
1739                                    this.child(
1740                                        Icon::new(IconName::ArrowCircle)
1741                                            .color(Color::Accent)
1742                                            .size(IconSize::Small)
1743                                            .with_rotate_animation(2)
1744                                            .into_any_element(),
1745                                    )
1746                                },
1747                            ),
1748                    ),
1749            )
1750    }
1751
1752    fn render_loading_spinner(&self, cx: &App) -> AnyElement {
1753        let rems = TextSize::Large.rems(cx);
1754        Icon::new(IconName::LoadCircle)
1755            .size(IconSize::Custom(rems))
1756            .color(Color::Accent)
1757            .with_rotate_animation(3)
1758            .into_any_element()
1759    }
1760
1761    fn render_commit_detail_panel(
1762        &self,
1763        window: &mut Window,
1764        cx: &mut Context<Self>,
1765    ) -> impl IntoElement {
1766        let Some(selected_idx) = self.selected_entry_idx else {
1767            return Empty.into_any_element();
1768        };
1769
1770        let Some(commit_entry) = self.graph_data.commits.get(selected_idx) else {
1771            return Empty.into_any_element();
1772        };
1773
1774        let Some(repository) = self.get_repository(cx) else {
1775            return Empty.into_any_element();
1776        };
1777
1778        let data = repository.update(cx, |repository, cx| {
1779            repository
1780                .fetch_commit_data(commit_entry.data.sha, cx)
1781                .clone()
1782        });
1783
1784        let full_sha: SharedString = commit_entry.data.sha.to_string().into();
1785        let ref_names = commit_entry.data.ref_names.clone();
1786
1787        let accent_colors = cx.theme().accents();
1788        let accent_color = accent_colors
1789            .0
1790            .get(commit_entry.color_idx)
1791            .copied()
1792            .unwrap_or_else(|| accent_colors.0.first().copied().unwrap_or_default());
1793
1794        // todo(git graph): We should use the full commit message here
1795        let (author_name, author_email, commit_timestamp, commit_message) = match &data {
1796            CommitDataState::Loaded(data) => (
1797                data.author_name.clone(),
1798                data.author_email.clone(),
1799                Some(data.commit_timestamp),
1800                data.subject.clone(),
1801            ),
1802            CommitDataState::Loading => ("Loading…".into(), "".into(), None, "Loading…".into()),
1803        };
1804
1805        let date_string = commit_timestamp
1806            .and_then(|ts| OffsetDateTime::from_unix_timestamp(ts).ok())
1807            .map(|datetime| {
1808                let local_offset = UtcOffset::current_local_offset().unwrap_or(UtcOffset::UTC);
1809                let local_datetime = datetime.to_offset(local_offset);
1810                let format =
1811                    time::format_description::parse("[month repr:short] [day], [year]").ok();
1812                format
1813                    .and_then(|f| local_datetime.format(&f).ok())
1814                    .unwrap_or_default()
1815            })
1816            .unwrap_or_default();
1817
1818        let remote = repository.update(cx, |repo, cx| self.get_remote(repo, window, cx));
1819
1820        let avatar = {
1821            let author_email_for_avatar = if author_email.is_empty() {
1822                None
1823            } else {
1824                Some(author_email.clone())
1825            };
1826
1827            CommitAvatar::new(&full_sha, author_email_for_avatar, remote.as_ref())
1828                .size(px(40.))
1829                .render(window, cx)
1830        };
1831
1832        let changed_files_count = self
1833            .selected_commit_diff
1834            .as_ref()
1835            .map(|diff| diff.files.len())
1836            .unwrap_or(0);
1837
1838        let (total_lines_added, total_lines_removed) =
1839            self.selected_commit_diff_stats.unwrap_or((0, 0));
1840
1841        let sorted_file_entries: Rc<Vec<ChangedFileEntry>> = Rc::new(
1842            self.selected_commit_diff
1843                .as_ref()
1844                .map(|diff| {
1845                    let mut files: Vec<_> = diff.files.iter().collect();
1846                    files.sort_by_key(|file| file.status());
1847                    files
1848                        .into_iter()
1849                        .map(|file| ChangedFileEntry::from_commit_file(file, cx))
1850                        .collect()
1851                })
1852                .unwrap_or_default(),
1853        );
1854
1855        v_flex()
1856            .min_w(px(300.))
1857            .h_full()
1858            .bg(cx.theme().colors().surface_background)
1859            .flex_basis(DefiniteLength::Fraction(
1860                self.commit_details_split_state.read(cx).right_ratio(),
1861            ))
1862            .child(
1863                v_flex()
1864                    .relative()
1865                    .w_full()
1866                    .p_2()
1867                    .gap_2()
1868                    .child(
1869                        div().absolute().top_2().right_2().child(
1870                            IconButton::new("close-detail", IconName::Close)
1871                                .icon_size(IconSize::Small)
1872                                .on_click(cx.listener(move |this, _, _, cx| {
1873                                    this.selected_entry_idx = None;
1874                                    this.selected_commit_diff = None;
1875                                    this.selected_commit_diff_stats = None;
1876                                    this._commit_diff_task = None;
1877                                    cx.notify();
1878                                })),
1879                        ),
1880                    )
1881                    .child(
1882                        v_flex()
1883                            .py_1()
1884                            .w_full()
1885                            .items_center()
1886                            .gap_1()
1887                            .child(avatar)
1888                            .child(
1889                                v_flex()
1890                                    .items_center()
1891                                    .child(Label::new(author_name))
1892                                    .child(
1893                                        Label::new(date_string)
1894                                            .color(Color::Muted)
1895                                            .size(LabelSize::Small),
1896                                    ),
1897                            ),
1898                    )
1899                    .children((!ref_names.is_empty()).then(|| {
1900                        h_flex().gap_1().flex_wrap().justify_center().children(
1901                            ref_names
1902                                .iter()
1903                                .map(|name| self.render_chip(name, accent_color)),
1904                        )
1905                    }))
1906                    .child(
1907                        v_flex()
1908                            .ml_neg_1()
1909                            .gap_1p5()
1910                            .when(!author_email.is_empty(), |this| {
1911                                let copied_state: Entity<CopiedState> = window.use_keyed_state(
1912                                    "author-email-copy",
1913                                    cx,
1914                                    CopiedState::new,
1915                                );
1916                                let is_copied = copied_state.read(cx).is_copied();
1917
1918                                let (icon, icon_color, tooltip_label) = if is_copied {
1919                                    (IconName::Check, Color::Success, "Email Copied!")
1920                                } else {
1921                                    (IconName::Envelope, Color::Muted, "Copy Email")
1922                                };
1923
1924                                let copy_email = author_email.clone();
1925                                let author_email_for_tooltip = author_email.clone();
1926
1927                                this.child(
1928                                    Button::new("author-email-copy", author_email.clone())
1929                                        .start_icon(
1930                                            Icon::new(icon).size(IconSize::Small).color(icon_color),
1931                                        )
1932                                        .label_size(LabelSize::Small)
1933                                        .truncate(true)
1934                                        .color(Color::Muted)
1935                                        .tooltip(move |_, cx| {
1936                                            Tooltip::with_meta(
1937                                                tooltip_label,
1938                                                None,
1939                                                author_email_for_tooltip.clone(),
1940                                                cx,
1941                                            )
1942                                        })
1943                                        .on_click(move |_, _, cx| {
1944                                            copied_state.update(cx, |state, _cx| {
1945                                                state.mark_copied();
1946                                            });
1947                                            cx.write_to_clipboard(ClipboardItem::new_string(
1948                                                copy_email.to_string(),
1949                                            ));
1950                                            let state_id = copied_state.entity_id();
1951                                            cx.spawn(async move |cx| {
1952                                                cx.background_executor()
1953                                                    .timer(COPIED_STATE_DURATION)
1954                                                    .await;
1955                                                cx.update(|cx| {
1956                                                    cx.notify(state_id);
1957                                                })
1958                                            })
1959                                            .detach();
1960                                        }),
1961                                )
1962                            })
1963                            .child({
1964                                let copy_sha = full_sha.clone();
1965                                let copied_state: Entity<CopiedState> =
1966                                    window.use_keyed_state("sha-copy", cx, CopiedState::new);
1967                                let is_copied = copied_state.read(cx).is_copied();
1968
1969                                let (icon, icon_color, tooltip_label) = if is_copied {
1970                                    (IconName::Check, Color::Success, "Commit SHA Copied!")
1971                                } else {
1972                                    (IconName::Hash, Color::Muted, "Copy Commit SHA")
1973                                };
1974
1975                                Button::new("sha-button", &full_sha)
1976                                    .start_icon(
1977                                        Icon::new(icon).size(IconSize::Small).color(icon_color),
1978                                    )
1979                                    .label_size(LabelSize::Small)
1980                                    .truncate(true)
1981                                    .color(Color::Muted)
1982                                    .tooltip({
1983                                        let full_sha = full_sha.clone();
1984                                        move |_, cx| {
1985                                            Tooltip::with_meta(
1986                                                tooltip_label,
1987                                                None,
1988                                                full_sha.clone(),
1989                                                cx,
1990                                            )
1991                                        }
1992                                    })
1993                                    .on_click(move |_, _, cx| {
1994                                        copied_state.update(cx, |state, _cx| {
1995                                            state.mark_copied();
1996                                        });
1997                                        cx.write_to_clipboard(ClipboardItem::new_string(
1998                                            copy_sha.to_string(),
1999                                        ));
2000                                        let state_id = copied_state.entity_id();
2001                                        cx.spawn(async move |cx| {
2002                                            cx.background_executor()
2003                                                .timer(COPIED_STATE_DURATION)
2004                                                .await;
2005                                            cx.update(|cx| {
2006                                                cx.notify(state_id);
2007                                            })
2008                                        })
2009                                        .detach();
2010                                    })
2011                            })
2012                            .when_some(remote.clone(), |this, remote| {
2013                                let provider_name = remote.host.name();
2014                                let icon = match provider_name.as_str() {
2015                                    "GitHub" => IconName::Github,
2016                                    _ => IconName::Link,
2017                                };
2018                                let parsed_remote = ParsedGitRemote {
2019                                    owner: remote.owner.as_ref().into(),
2020                                    repo: remote.repo.as_ref().into(),
2021                                };
2022                                let params = BuildCommitPermalinkParams {
2023                                    sha: full_sha.as_ref(),
2024                                };
2025                                let url = remote
2026                                    .host
2027                                    .build_commit_permalink(&parsed_remote, params)
2028                                    .to_string();
2029
2030                                this.child(
2031                                    Button::new(
2032                                        "view-on-provider",
2033                                        format!("View on {}", provider_name),
2034                                    )
2035                                    .start_icon(
2036                                        Icon::new(icon).size(IconSize::Small).color(Color::Muted),
2037                                    )
2038                                    .label_size(LabelSize::Small)
2039                                    .truncate(true)
2040                                    .color(Color::Muted)
2041                                    .on_click(
2042                                        move |_, _, cx| {
2043                                            cx.open_url(&url);
2044                                        },
2045                                    ),
2046                                )
2047                            }),
2048                    ),
2049            )
2050            .child(Divider::horizontal())
2051            .child(div().p_2().child(Label::new(commit_message)))
2052            .child(Divider::horizontal())
2053            .child(
2054                v_flex()
2055                    .min_w_0()
2056                    .p_2()
2057                    .flex_1()
2058                    .gap_1()
2059                    .child(
2060                        h_flex()
2061                            .gap_1()
2062                            .child(
2063                                Label::new(format!("{} Changed Files", changed_files_count))
2064                                    .size(LabelSize::Small)
2065                                    .color(Color::Muted),
2066                            )
2067                            .child(DiffStat::new(
2068                                "commit-diff-stat",
2069                                total_lines_added,
2070                                total_lines_removed,
2071                            )),
2072                    )
2073                    .child(
2074                        div()
2075                            .id("changed-files-container")
2076                            .flex_1()
2077                            .min_h_0()
2078                            .child({
2079                                let entries = sorted_file_entries;
2080                                let entry_count = entries.len();
2081                                let commit_sha = full_sha.clone();
2082                                let repository = repository.downgrade();
2083                                let workspace = self.workspace.clone();
2084                                uniform_list(
2085                                    "changed-files-list",
2086                                    entry_count,
2087                                    move |range, _window, cx| {
2088                                        range
2089                                            .map(|ix| {
2090                                                entries[ix].render(
2091                                                    ix,
2092                                                    commit_sha.clone(),
2093                                                    repository.clone(),
2094                                                    workspace.clone(),
2095                                                    cx,
2096                                                )
2097                                            })
2098                                            .collect()
2099                                    },
2100                                )
2101                                .size_full()
2102                                .ml_neg_1()
2103                                .track_scroll(&self.changed_files_scroll_handle)
2104                            })
2105                            .vertical_scrollbar_for(&self.changed_files_scroll_handle, window, cx),
2106                    ),
2107            )
2108            .child(Divider::horizontal())
2109            .child(
2110                h_flex().p_1p5().w_full().child(
2111                    Button::new("view-commit", "View Commit")
2112                        .full_width()
2113                        .style(ButtonStyle::Outlined)
2114                        .on_click(cx.listener(|this, _, window, cx| {
2115                            this.open_selected_commit_view(window, cx);
2116                        })),
2117                ),
2118            )
2119            .into_any_element()
2120    }
2121
2122    pub fn render_graph(&self, window: &Window, cx: &mut Context<GitGraph>) -> impl IntoElement {
2123        let row_height = self.row_height;
2124        let table_state = self.table_interaction_state.read(cx);
2125        let viewport_height = table_state
2126            .scroll_handle
2127            .0
2128            .borrow()
2129            .last_item_size
2130            .map(|size| size.item.height)
2131            .unwrap_or(px(600.0));
2132        let loaded_commit_count = self.graph_data.commits.len();
2133
2134        let content_height = row_height * loaded_commit_count;
2135        let max_scroll = (content_height - viewport_height).max(px(0.));
2136        let scroll_offset_y = (-table_state.scroll_offset().y).clamp(px(0.), max_scroll);
2137
2138        let first_visible_row = (scroll_offset_y / row_height).floor() as usize;
2139        let vertical_scroll_offset = scroll_offset_y - (first_visible_row as f32 * row_height);
2140
2141        let graph_viewport_width = self.graph_viewport_width(window, cx);
2142        let graph_width = if self.graph_canvas_content_width() > graph_viewport_width {
2143            self.graph_canvas_content_width()
2144        } else {
2145            graph_viewport_width
2146        };
2147        let last_visible_row =
2148            first_visible_row + (viewport_height / row_height).ceil() as usize + 1;
2149
2150        let viewport_range = first_visible_row.min(loaded_commit_count.saturating_sub(1))
2151            ..(last_visible_row).min(loaded_commit_count);
2152        let rows = self.graph_data.commits[viewport_range.clone()].to_vec();
2153        let commit_lines: Vec<_> = self
2154            .graph_data
2155            .lines
2156            .iter()
2157            .filter(|line| {
2158                line.full_interval.start <= viewport_range.end
2159                    && line.full_interval.end >= viewport_range.start
2160            })
2161            .cloned()
2162            .collect();
2163
2164        let mut lines: BTreeMap<usize, Vec<_>> = BTreeMap::new();
2165
2166        let hovered_entry_idx = self.hovered_entry_idx;
2167        let selected_entry_idx = self.selected_entry_idx;
2168        let is_focused = self.focus_handle.is_focused(window);
2169        let graph_canvas_bounds = self.graph_canvas_bounds.clone();
2170
2171        gpui::canvas(
2172            move |_bounds, _window, _cx| {},
2173            move |bounds: Bounds<Pixels>, _: (), window: &mut Window, cx: &mut App| {
2174                graph_canvas_bounds.set(Some(bounds));
2175
2176                window.paint_layer(bounds, |window| {
2177                    let accent_colors = cx.theme().accents();
2178
2179                    let hover_bg = cx.theme().colors().element_hover.opacity(0.6);
2180                    let selected_bg = if is_focused {
2181                        cx.theme().colors().element_selected
2182                    } else {
2183                        cx.theme().colors().element_hover
2184                    };
2185
2186                    for visible_row_idx in 0..rows.len() {
2187                        let absolute_row_idx = first_visible_row + visible_row_idx;
2188                        let is_hovered = hovered_entry_idx == Some(absolute_row_idx);
2189                        let is_selected = selected_entry_idx == Some(absolute_row_idx);
2190
2191                        if is_hovered || is_selected {
2192                            let row_y = bounds.origin.y + visible_row_idx as f32 * row_height
2193                                - vertical_scroll_offset;
2194
2195                            let row_bounds = Bounds::new(
2196                                point(bounds.origin.x, row_y),
2197                                gpui::Size {
2198                                    width: bounds.size.width,
2199                                    height: row_height,
2200                                },
2201                            );
2202
2203                            let bg_color = if is_selected { selected_bg } else { hover_bg };
2204                            window.paint_quad(gpui::fill(row_bounds, bg_color));
2205                        }
2206                    }
2207
2208                    for (row_idx, row) in rows.into_iter().enumerate() {
2209                        let row_color = accent_colors.color_for_index(row.color_idx as u32);
2210                        let row_y_center =
2211                            bounds.origin.y + row_idx as f32 * row_height + row_height / 2.0
2212                                - vertical_scroll_offset;
2213
2214                        let commit_x = lane_center_x(bounds, row.lane as f32);
2215
2216                        draw_commit_circle(commit_x, row_y_center, row_color, window);
2217                    }
2218
2219                    for line in commit_lines {
2220                        let Some((start_segment_idx, start_column)) =
2221                            line.get_first_visible_segment_idx(first_visible_row)
2222                        else {
2223                            continue;
2224                        };
2225
2226                        let line_x = lane_center_x(bounds, start_column as f32);
2227
2228                        let start_row = line.full_interval.start as i32 - first_visible_row as i32;
2229
2230                        let from_y =
2231                            bounds.origin.y + start_row as f32 * row_height + row_height / 2.0
2232                                - vertical_scroll_offset
2233                                + COMMIT_CIRCLE_RADIUS;
2234
2235                        let mut current_row = from_y;
2236                        let mut current_column = line_x;
2237
2238                        let mut builder = PathBuilder::stroke(LINE_WIDTH);
2239                        builder.move_to(point(line_x, from_y));
2240
2241                        let segments = &line.segments[start_segment_idx..];
2242                        let desired_curve_height = row_height / 3.0;
2243                        let desired_curve_width = LANE_WIDTH / 3.0;
2244
2245                        for (segment_idx, segment) in segments.iter().enumerate() {
2246                            let is_last = segment_idx + 1 == segments.len();
2247
2248                            match segment {
2249                                CommitLineSegment::Straight { to_row } => {
2250                                    let mut dest_row = to_row_center(
2251                                        to_row - first_visible_row,
2252                                        row_height,
2253                                        vertical_scroll_offset,
2254                                        bounds,
2255                                    );
2256                                    if is_last {
2257                                        dest_row -= COMMIT_CIRCLE_RADIUS;
2258                                    }
2259
2260                                    let dest_point = point(current_column, dest_row);
2261
2262                                    current_row = dest_point.y;
2263                                    builder.line_to(dest_point);
2264                                    builder.move_to(dest_point);
2265                                }
2266                                CommitLineSegment::Curve {
2267                                    to_column,
2268                                    on_row,
2269                                    curve_kind,
2270                                } => {
2271                                    let mut to_column = lane_center_x(bounds, *to_column as f32);
2272
2273                                    let mut to_row = to_row_center(
2274                                        *on_row - first_visible_row,
2275                                        row_height,
2276                                        vertical_scroll_offset,
2277                                        bounds,
2278                                    );
2279
2280                                    // This means that this branch was a checkout
2281                                    let going_right = to_column > current_column;
2282                                    let column_shift = if going_right {
2283                                        COMMIT_CIRCLE_RADIUS + COMMIT_CIRCLE_STROKE_WIDTH
2284                                    } else {
2285                                        -COMMIT_CIRCLE_RADIUS - COMMIT_CIRCLE_STROKE_WIDTH
2286                                    };
2287
2288                                    match curve_kind {
2289                                        CurveKind::Checkout => {
2290                                            if is_last {
2291                                                to_column -= column_shift;
2292                                            }
2293
2294                                            let available_curve_width =
2295                                                (to_column - current_column).abs();
2296                                            let available_curve_height =
2297                                                (to_row - current_row).abs();
2298                                            let curve_width =
2299                                                desired_curve_width.min(available_curve_width);
2300                                            let curve_height =
2301                                                desired_curve_height.min(available_curve_height);
2302                                            let signed_curve_width = if going_right {
2303                                                curve_width
2304                                            } else {
2305                                                -curve_width
2306                                            };
2307                                            let curve_start =
2308                                                point(current_column, to_row - curve_height);
2309                                            let curve_end =
2310                                                point(current_column + signed_curve_width, to_row);
2311                                            let curve_control = point(current_column, to_row);
2312
2313                                            builder.move_to(point(current_column, current_row));
2314                                            builder.line_to(curve_start);
2315                                            builder.move_to(curve_start);
2316                                            builder.curve_to(curve_end, curve_control);
2317                                            builder.move_to(curve_end);
2318                                            builder.line_to(point(to_column, to_row));
2319                                        }
2320                                        CurveKind::Merge => {
2321                                            if is_last {
2322                                                to_row -= COMMIT_CIRCLE_RADIUS;
2323                                            }
2324
2325                                            let merge_start = point(
2326                                                current_column + column_shift,
2327                                                current_row - COMMIT_CIRCLE_RADIUS,
2328                                            );
2329                                            let available_curve_width =
2330                                                (to_column - merge_start.x).abs();
2331                                            let available_curve_height =
2332                                                (to_row - merge_start.y).abs();
2333                                            let curve_width =
2334                                                desired_curve_width.min(available_curve_width);
2335                                            let curve_height =
2336                                                desired_curve_height.min(available_curve_height);
2337                                            let signed_curve_width = if going_right {
2338                                                curve_width
2339                                            } else {
2340                                                -curve_width
2341                                            };
2342                                            let curve_start = point(
2343                                                to_column - signed_curve_width,
2344                                                merge_start.y,
2345                                            );
2346                                            let curve_end =
2347                                                point(to_column, merge_start.y + curve_height);
2348                                            let curve_control = point(to_column, merge_start.y);
2349
2350                                            builder.move_to(merge_start);
2351                                            builder.line_to(curve_start);
2352                                            builder.move_to(curve_start);
2353                                            builder.curve_to(curve_end, curve_control);
2354                                            builder.move_to(curve_end);
2355                                            builder.line_to(point(to_column, to_row));
2356                                        }
2357                                    }
2358                                    current_row = to_row;
2359                                    current_column = to_column;
2360                                    builder.move_to(point(current_column, current_row));
2361                                }
2362                            }
2363                        }
2364
2365                        builder.close();
2366                        lines.entry(line.color_idx).or_default().push(builder);
2367                    }
2368
2369                    for (color_idx, builders) in lines {
2370                        let line_color = accent_colors.color_for_index(color_idx as u32);
2371
2372                        for builder in builders {
2373                            if let Ok(path) = builder.build() {
2374                                // we paint each color on it's own layer to stop overlapping lines
2375                                // of different colors changing the color of a line
2376                                window.paint_layer(bounds, |window| {
2377                                    window.paint_path(path, line_color);
2378                                });
2379                            }
2380                        }
2381                    }
2382                })
2383            },
2384        )
2385        .w(graph_width)
2386        .h_full()
2387    }
2388
2389    fn row_at_position(&self, position_y: Pixels, cx: &Context<Self>) -> Option<usize> {
2390        let canvas_bounds = self.graph_canvas_bounds.get()?;
2391        let table_state = self.table_interaction_state.read(cx);
2392        let scroll_offset_y = -table_state.scroll_offset().y;
2393
2394        let local_y = position_y - canvas_bounds.origin.y;
2395
2396        if local_y >= px(0.) && local_y < canvas_bounds.size.height {
2397            let absolute_y = local_y + scroll_offset_y;
2398            let absolute_row = (absolute_y / self.row_height).floor() as usize;
2399
2400            if absolute_row < self.graph_data.commits.len() {
2401                return Some(absolute_row);
2402            }
2403        }
2404
2405        None
2406    }
2407
2408    fn handle_graph_mouse_move(
2409        &mut self,
2410        event: &gpui::MouseMoveEvent,
2411        _window: &mut Window,
2412        cx: &mut Context<Self>,
2413    ) {
2414        if let Some(row) = self.row_at_position(event.position.y, cx) {
2415            if self.hovered_entry_idx != Some(row) {
2416                self.hovered_entry_idx = Some(row);
2417                cx.notify();
2418            }
2419        } else if self.hovered_entry_idx.is_some() {
2420            self.hovered_entry_idx = None;
2421            cx.notify();
2422        }
2423    }
2424
2425    fn handle_graph_click(
2426        &mut self,
2427        event: &ClickEvent,
2428        window: &mut Window,
2429        cx: &mut Context<Self>,
2430    ) {
2431        if let Some(row) = self.row_at_position(event.position().y, cx) {
2432            self.select_entry(row, ScrollStrategy::Nearest, cx);
2433            if event.click_count() >= 2 {
2434                self.open_commit_view(row, window, cx);
2435            }
2436        }
2437    }
2438
2439    fn handle_graph_scroll(
2440        &mut self,
2441        event: &ScrollWheelEvent,
2442        window: &mut Window,
2443        cx: &mut Context<Self>,
2444    ) {
2445        let line_height = window.line_height();
2446        let delta = event.delta.pixel_delta(line_height);
2447
2448        let table_state = self.table_interaction_state.read(cx);
2449        let current_offset = table_state.scroll_offset();
2450
2451        let viewport_height = table_state.scroll_handle.viewport().size.height;
2452
2453        let commit_count = match self.graph_data.max_commit_count {
2454            AllCommitCount::Loaded(count) => count,
2455            AllCommitCount::NotLoaded => self.graph_data.commits.len(),
2456        };
2457        let content_height = self.row_height * commit_count;
2458        let max_vertical_scroll = (viewport_height - content_height).min(px(0.));
2459
2460        let new_y = (current_offset.y + delta.y).clamp(max_vertical_scroll, px(0.));
2461        let new_offset = Point::new(current_offset.x, new_y);
2462
2463        if new_offset != current_offset {
2464            table_state.set_scroll_offset(new_offset);
2465            cx.notify();
2466        }
2467    }
2468
2469    fn render_commit_view_resize_handle(
2470        &self,
2471        _window: &mut Window,
2472        cx: &mut Context<Self>,
2473    ) -> AnyElement {
2474        div()
2475            .id("commit-view-split-resize-container")
2476            .relative()
2477            .h_full()
2478            .flex_shrink_0()
2479            .w(px(1.))
2480            .bg(cx.theme().colors().border_variant)
2481            .child(
2482                div()
2483                    .id("commit-view-split-resize-handle")
2484                    .absolute()
2485                    .left(px(-RESIZE_HANDLE_WIDTH / 2.0))
2486                    .w(px(RESIZE_HANDLE_WIDTH))
2487                    .h_full()
2488                    .cursor_col_resize()
2489                    .block_mouse_except_scroll()
2490                    .on_click(cx.listener(|this, event: &ClickEvent, _window, cx| {
2491                        if event.click_count() >= 2 {
2492                            this.commit_details_split_state.update(cx, |state, _| {
2493                                state.on_double_click();
2494                            });
2495                        }
2496                        cx.stop_propagation();
2497                    }))
2498                    .on_drag(DraggedSplitHandle, |_, _, _, cx| cx.new(|_| gpui::Empty)),
2499            )
2500            .into_any_element()
2501    }
2502}
2503
2504impl Render for GitGraph {
2505    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
2506        // This happens when we changed branches, we should refresh our search as well
2507        if let QueryState::Pending(query) = &mut self.search_state.state {
2508            let query = std::mem::take(query);
2509            self.search_state.state = QueryState::Empty;
2510            self.search(query, cx);
2511        }
2512        let (commit_count, is_loading) = match self.graph_data.max_commit_count {
2513            AllCommitCount::Loaded(count) => (count, true),
2514            AllCommitCount::NotLoaded => {
2515                let (commit_count, is_loading) = if let Some(repository) = self.get_repository(cx) {
2516                    repository.update(cx, |repository, cx| {
2517                        // Start loading the graph data if we haven't started already
2518                        let GraphDataResponse {
2519                            commits,
2520                            is_loading,
2521                            error: _,
2522                        } = repository.graph_data(
2523                            self.log_source.clone(),
2524                            self.log_order,
2525                            0..usize::MAX,
2526                            cx,
2527                        );
2528                        self.graph_data.add_commits(&commits);
2529                        (commits.len(), is_loading)
2530                    })
2531                } else {
2532                    (0, false)
2533                };
2534
2535                (commit_count, is_loading)
2536            }
2537        };
2538
2539        let content = if commit_count == 0 {
2540            let message = if is_loading {
2541                "Loading"
2542            } else {
2543                "No commits found"
2544            };
2545            let label = Label::new(message)
2546                .color(Color::Muted)
2547                .size(LabelSize::Large);
2548            div()
2549                .size_full()
2550                .h_flex()
2551                .gap_1()
2552                .items_center()
2553                .justify_center()
2554                .child(label)
2555                .when(is_loading, |this| {
2556                    this.child(self.render_loading_spinner(cx))
2557                })
2558        } else {
2559            let header_resize_info = HeaderResizeInfo::from_state(&self.column_widths, cx);
2560            let header_context = TableRenderContext::for_column_widths(
2561                Some(self.column_widths.read(cx).widths_to_render()),
2562                true,
2563            );
2564            let [
2565                graph_fraction,
2566                description_fraction,
2567                date_fraction,
2568                author_fraction,
2569                commit_fraction,
2570            ] = self.preview_column_fractions(window, cx);
2571            let table_fraction =
2572                description_fraction + date_fraction + author_fraction + commit_fraction;
2573            let table_width_config = self.table_column_width_config(window, cx);
2574
2575            h_flex()
2576                .size_full()
2577                .child(
2578                    div()
2579                        .flex_1()
2580                        .min_w_0()
2581                        .size_full()
2582                        .flex()
2583                        .flex_col()
2584                        .child(render_table_header(
2585                            TableRow::from_vec(
2586                                vec![
2587                                    Label::new("Graph")
2588                                        .color(Color::Muted)
2589                                        .truncate()
2590                                        .into_any_element(),
2591                                    Label::new("Description")
2592                                        .color(Color::Muted)
2593                                        .into_any_element(),
2594                                    Label::new("Date").color(Color::Muted).into_any_element(),
2595                                    Label::new("Author").color(Color::Muted).into_any_element(),
2596                                    Label::new("Commit").color(Color::Muted).into_any_element(),
2597                                ],
2598                                5,
2599                            ),
2600                            header_context,
2601                            Some(header_resize_info),
2602                            Some(self.column_widths.entity_id()),
2603                            cx,
2604                        ))
2605                        .child({
2606                            let row_height = self.row_height;
2607                            let selected_entry_idx = self.selected_entry_idx;
2608                            let hovered_entry_idx = self.hovered_entry_idx;
2609                            let weak_self = cx.weak_entity();
2610                            let focus_handle = self.focus_handle.clone();
2611
2612                            bind_redistributable_columns(
2613                                div()
2614                                    .relative()
2615                                    .flex_1()
2616                                    .w_full()
2617                                    .overflow_hidden()
2618                                    .child(
2619                                        h_flex()
2620                                            .size_full()
2621                                            .child(
2622                                                div()
2623                                                    .w(DefiniteLength::Fraction(graph_fraction))
2624                                                    .h_full()
2625                                                    .min_w_0()
2626                                                    .overflow_hidden()
2627                                                    .child(
2628                                                        div()
2629                                                            .id("graph-canvas")
2630                                                            .size_full()
2631                                                            .overflow_hidden()
2632                                                            .child(
2633                                                                div()
2634                                                                    .size_full()
2635                                                                    .child(self.render_graph(window, cx)),
2636                                                            )
2637                                                            .on_scroll_wheel(
2638                                                                cx.listener(Self::handle_graph_scroll),
2639                                                            )
2640                                                            .on_mouse_move(
2641                                                                cx.listener(Self::handle_graph_mouse_move),
2642                                                            )
2643                                                            .on_click(cx.listener(Self::handle_graph_click))
2644                                                            .on_hover(cx.listener(
2645                                                                |this, &is_hovered: &bool, _, cx| {
2646                                                                    if !is_hovered
2647                                                                        && this.hovered_entry_idx.is_some()
2648                                                                    {
2649                                                                        this.hovered_entry_idx = None;
2650                                                                        cx.notify();
2651                                                                    }
2652                                                                },
2653                                                            )),
2654                                                    ),
2655                                            )
2656                                            .child(
2657                                                div()
2658                                                    .w(DefiniteLength::Fraction(table_fraction))
2659                                                    .h_full()
2660                                                    .min_w_0()
2661                                                    .child(
2662                                                        Table::new(4)
2663                                                            .interactable(&self.table_interaction_state)
2664                                                            .hide_row_borders()
2665                                                            .hide_row_hover()
2666                                                            .width_config(table_width_config)
2667                                                            .map_row(move |(index, row), window, cx| {
2668                                                                let is_selected =
2669                                                                    selected_entry_idx == Some(index);
2670                                                                let is_hovered =
2671                                                                    hovered_entry_idx == Some(index);
2672                                                                let is_focused =
2673                                                                    focus_handle.is_focused(window);
2674                                                                let weak = weak_self.clone();
2675                                                                let weak_for_hover = weak.clone();
2676
2677                                                                let hover_bg = cx
2678                                                                    .theme()
2679                                                                    .colors()
2680                                                                    .element_hover
2681                                                                    .opacity(0.6);
2682                                                                let selected_bg = if is_focused {
2683                                                                    cx.theme().colors().element_selected
2684                                                                } else {
2685                                                                    cx.theme().colors().element_hover
2686                                                                };
2687
2688                                                                row.h(row_height)
2689                                                                    .when(is_selected, |row| row.bg(selected_bg))
2690                                                                    .when(
2691                                                                        is_hovered && !is_selected,
2692                                                                        |row| row.bg(hover_bg),
2693                                                                    )
2694                                                                    .on_hover(move |&is_hovered, _, cx| {
2695                                                                        weak_for_hover
2696                                                                            .update(cx, |this, cx| {
2697                                                                                if is_hovered {
2698                                                                                    if this.hovered_entry_idx
2699                                                                                        != Some(index)
2700                                                                                    {
2701                                                                                        this.hovered_entry_idx =
2702                                                                                            Some(index);
2703                                                                                        cx.notify();
2704                                                                                    }
2705                                                                                } else if this
2706                                                                                    .hovered_entry_idx
2707                                                                                    == Some(index)
2708                                                                                {
2709                                                                                    this.hovered_entry_idx =
2710                                                                                        None;
2711                                                                                    cx.notify();
2712                                                                                }
2713                                                                            })
2714                                                                            .ok();
2715                                                                    })
2716                                                                    .on_click(move |event, window, cx| {
2717                                                                        let click_count = event.click_count();
2718                                                                        weak.update(cx, |this, cx| {
2719                                                                            this.select_entry(
2720                                                                                index,
2721                                                                                ScrollStrategy::Center,
2722                                                                                cx,
2723                                                                            );
2724                                                                            if click_count >= 2 {
2725                                                                                this.open_commit_view(
2726                                                                                    index,
2727                                                                                    window,
2728                                                                                    cx,
2729                                                                                );
2730                                                                            }
2731                                                                        })
2732                                                                        .ok();
2733                                                                    })
2734                                                                    .into_any_element()
2735                                                            })
2736                                                            .uniform_list(
2737                                                                "git-graph-commits",
2738                                                                commit_count,
2739                                                                cx.processor(Self::render_table_rows),
2740                                                            ),
2741                                                    ),
2742                                            ),
2743                                    )
2744                                    .child(render_redistributable_columns_resize_handles(
2745                                        &self.column_widths,
2746                                        window,
2747                                        cx,
2748                                    )),
2749                                self.column_widths.clone(),
2750                            )
2751                        }),
2752                )
2753                .on_drag_move::<DraggedSplitHandle>(cx.listener(|this, event, window, cx| {
2754                    this.commit_details_split_state.update(cx, |state, cx| {
2755                        state.on_drag_move(event, window, cx);
2756                    });
2757                }))
2758                .on_drop::<DraggedSplitHandle>(cx.listener(|this, _event, _window, cx| {
2759                    this.commit_details_split_state.update(cx, |state, _cx| {
2760                        state.commit_ratio();
2761                    });
2762                }))
2763                .when(self.selected_entry_idx.is_some(), |this| {
2764                    this.child(self.render_commit_view_resize_handle(window, cx))
2765                        .child(self.render_commit_detail_panel(window, cx))
2766                })
2767        };
2768
2769        div()
2770            .key_context("GitGraph")
2771            .track_focus(&self.focus_handle)
2772            .size_full()
2773            .bg(cx.theme().colors().editor_background)
2774            .on_action(cx.listener(|this, _: &OpenCommitView, window, cx| {
2775                this.open_selected_commit_view(window, cx);
2776            }))
2777            .on_action(cx.listener(Self::cancel))
2778            .on_action(cx.listener(|this, _: &FocusSearch, window, cx| {
2779                this.search_state
2780                    .editor
2781                    .update(cx, |editor, cx| editor.focus_handle(cx).focus(window, cx));
2782            }))
2783            .on_action(cx.listener(Self::select_first))
2784            .on_action(cx.listener(Self::select_prev))
2785            .on_action(cx.listener(Self::select_next))
2786            .on_action(cx.listener(Self::select_last))
2787            .on_action(cx.listener(Self::confirm))
2788            .on_action(cx.listener(|this, _: &SelectNextMatch, _window, cx| {
2789                this.select_next_match(cx);
2790            }))
2791            .on_action(cx.listener(|this, _: &SelectPreviousMatch, _window, cx| {
2792                this.select_previous_match(cx);
2793            }))
2794            .on_action(cx.listener(|this, _: &ToggleCaseSensitive, _window, cx| {
2795                this.search_state.case_sensitive = !this.search_state.case_sensitive;
2796                this.search_state.state.next_state();
2797                cx.notify();
2798            }))
2799            .child(
2800                v_flex()
2801                    .size_full()
2802                    .child(self.render_search_bar(cx))
2803                    .child(div().flex_1().child(content)),
2804            )
2805            .children(self.context_menu.as_ref().map(|(menu, position, _)| {
2806                deferred(
2807                    anchored()
2808                        .position(*position)
2809                        .anchor(Corner::TopLeft)
2810                        .child(menu.clone()),
2811                )
2812                .with_priority(1)
2813            }))
2814            .on_action(cx.listener(|_, _: &buffer_search::Deploy, window, cx| {
2815                window.dispatch_action(Box::new(FocusSearch), cx);
2816                cx.stop_propagation();
2817            }))
2818    }
2819}
2820
2821impl EventEmitter<ItemEvent> for GitGraph {}
2822
2823impl Focusable for GitGraph {
2824    fn focus_handle(&self, _cx: &App) -> FocusHandle {
2825        self.focus_handle.clone()
2826    }
2827}
2828
2829impl Item for GitGraph {
2830    type Event = ItemEvent;
2831
2832    fn tab_icon(&self, _window: &Window, _cx: &App) -> Option<Icon> {
2833        Some(Icon::new(IconName::GitGraph))
2834    }
2835
2836    fn tab_tooltip_content(&self, cx: &App) -> Option<TabTooltipContent> {
2837        let repo_name = self.get_repository(cx).and_then(|repo| {
2838            repo.read(cx)
2839                .work_directory_abs_path
2840                .file_name()
2841                .map(|name| name.to_string_lossy().to_string())
2842        });
2843
2844        Some(TabTooltipContent::Custom(Box::new(Tooltip::element({
2845            move |_, _| {
2846                v_flex()
2847                    .child(Label::new("Git Graph"))
2848                    .when_some(repo_name.clone(), |this, name| {
2849                        this.child(Label::new(name).color(Color::Muted).size(LabelSize::Small))
2850                    })
2851                    .into_any_element()
2852            }
2853        }))))
2854    }
2855
2856    fn tab_content_text(&self, _detail: usize, cx: &App) -> SharedString {
2857        self.get_repository(cx)
2858            .and_then(|repo| {
2859                repo.read(cx)
2860                    .work_directory_abs_path
2861                    .file_name()
2862                    .map(|name| name.to_string_lossy().to_string())
2863            })
2864            .map_or_else(|| "Git Graph".into(), |name| SharedString::from(name))
2865    }
2866
2867    fn show_toolbar(&self) -> bool {
2868        false
2869    }
2870
2871    fn to_item_events(event: &Self::Event, f: &mut dyn FnMut(ItemEvent)) {
2872        f(*event)
2873    }
2874}
2875
2876impl workspace::SerializableItem for GitGraph {
2877    fn serialized_item_kind() -> &'static str {
2878        "GitGraph"
2879    }
2880
2881    fn cleanup(
2882        workspace_id: workspace::WorkspaceId,
2883        alive_items: Vec<workspace::ItemId>,
2884        _window: &mut Window,
2885        cx: &mut App,
2886    ) -> Task<gpui::Result<()>> {
2887        workspace::delete_unloaded_items(
2888            alive_items,
2889            workspace_id,
2890            "git_graphs",
2891            &persistence::GitGraphsDb::global(cx),
2892            cx,
2893        )
2894    }
2895
2896    fn deserialize(
2897        project: Entity<project::Project>,
2898        workspace: WeakEntity<Workspace>,
2899        workspace_id: workspace::WorkspaceId,
2900        item_id: workspace::ItemId,
2901        window: &mut Window,
2902        cx: &mut App,
2903    ) -> Task<gpui::Result<Entity<Self>>> {
2904        let db = persistence::GitGraphsDb::global(cx);
2905        let Some(repo_work_path) = db.get_git_graph(item_id, workspace_id).ok().flatten() else {
2906            return Task::ready(Err(anyhow::anyhow!("No git graph to deserialize")));
2907        };
2908
2909        let window_handle = window.window_handle();
2910        let project = project.read(cx);
2911        let git_store = project.git_store().clone();
2912        let wait = project.wait_for_initial_scan(cx);
2913
2914        cx.spawn(async move |cx| {
2915            wait.await;
2916
2917            cx.update_window(window_handle, |_, window, cx| {
2918                let path = repo_work_path.as_path();
2919
2920                let repositories = git_store.read(cx).repositories();
2921                let repo_id = repositories.iter().find_map(|(&repo_id, repo)| {
2922                    if repo.read(cx).snapshot().work_directory_abs_path.as_ref() == path {
2923                        Some(repo_id)
2924                    } else {
2925                        None
2926                    }
2927                });
2928
2929                let Some(repo_id) = repo_id else {
2930                    return Err(anyhow::anyhow!("Repository not found for path: {:?}", path));
2931                };
2932
2933                Ok(cx.new(|cx| GitGraph::new(repo_id, git_store, workspace, window, cx)))
2934            })?
2935        })
2936    }
2937
2938    fn serialize(
2939        &mut self,
2940        workspace: &mut Workspace,
2941        item_id: workspace::ItemId,
2942        _closing: bool,
2943        _window: &mut Window,
2944        cx: &mut Context<Self>,
2945    ) -> Option<Task<gpui::Result<()>>> {
2946        let workspace_id = workspace.database_id()?;
2947        let repo = self.get_repository(cx)?;
2948        let repo_working_path = repo
2949            .read(cx)
2950            .snapshot()
2951            .work_directory_abs_path
2952            .to_string_lossy()
2953            .to_string();
2954
2955        let db = persistence::GitGraphsDb::global(cx);
2956        Some(cx.background_spawn(async move {
2957            db.save_git_graph(item_id, workspace_id, repo_working_path)
2958                .await
2959        }))
2960    }
2961
2962    fn should_serialize(&self, event: &Self::Event) -> bool {
2963        event == &ItemEvent::UpdateTab
2964    }
2965}
2966
2967mod persistence {
2968    use std::path::PathBuf;
2969
2970    use db::{
2971        query,
2972        sqlez::{domain::Domain, thread_safe_connection::ThreadSafeConnection},
2973        sqlez_macros::sql,
2974    };
2975    use workspace::WorkspaceDb;
2976
2977    pub struct GitGraphsDb(ThreadSafeConnection);
2978
2979    impl Domain for GitGraphsDb {
2980        const NAME: &str = stringify!(GitGraphsDb);
2981
2982        const MIGRATIONS: &[&str] = &[
2983            sql!(
2984                CREATE TABLE git_graphs (
2985                    workspace_id INTEGER,
2986                    item_id INTEGER UNIQUE,
2987                    is_open INTEGER DEFAULT FALSE,
2988
2989                    PRIMARY KEY(workspace_id, item_id),
2990                    FOREIGN KEY(workspace_id) REFERENCES workspaces(workspace_id)
2991                    ON DELETE CASCADE
2992                ) STRICT;
2993            ),
2994            sql!(
2995                ALTER TABLE git_graphs ADD COLUMN repo_working_path TEXT;
2996            ),
2997        ];
2998    }
2999
3000    db::static_connection!(GitGraphsDb, [WorkspaceDb]);
3001
3002    impl GitGraphsDb {
3003        query! {
3004            pub async fn save_git_graph(
3005                item_id: workspace::ItemId,
3006                workspace_id: workspace::WorkspaceId,
3007                repo_working_path: String
3008            ) -> Result<()> {
3009                INSERT OR REPLACE INTO git_graphs(item_id, workspace_id, repo_working_path)
3010                VALUES (?, ?, ?)
3011            }
3012        }
3013
3014        query! {
3015            pub fn get_git_graph(
3016                item_id: workspace::ItemId,
3017                workspace_id: workspace::WorkspaceId
3018            ) -> Result<Option<PathBuf>> {
3019                SELECT repo_working_path
3020                FROM git_graphs
3021                WHERE item_id = ? AND workspace_id = ?
3022            }
3023        }
3024    }
3025}
3026
3027#[cfg(test)]
3028mod tests {
3029    use super::*;
3030    use anyhow::{Context, Result, bail};
3031    use collections::{HashMap, HashSet};
3032    use fs::FakeFs;
3033    use git::Oid;
3034    use git::repository::InitialGraphCommitData;
3035    use gpui::TestAppContext;
3036    use project::Project;
3037    use project::git_store::{GitStoreEvent, RepositoryEvent};
3038    use rand::prelude::*;
3039    use serde_json::json;
3040    use settings::SettingsStore;
3041    use smallvec::{SmallVec, smallvec};
3042    use std::path::Path;
3043    use std::sync::{Arc, Mutex};
3044
3045    fn init_test(cx: &mut TestAppContext) {
3046        cx.update(|cx| {
3047            let settings_store = SettingsStore::test(cx);
3048            cx.set_global(settings_store);
3049            theme_settings::init(theme::LoadThemes::JustBase, cx);
3050        });
3051    }
3052
3053    /// Generates a random commit DAG suitable for testing git graph rendering.
3054    ///
3055    /// The commits are ordered newest-first (like git log output), so:
3056    /// - Index 0 = most recent commit (HEAD)
3057    /// - Last index = oldest commit (root, has no parents)
3058    /// - Parents of commit at index I must have index > I
3059    ///
3060    /// When `adversarial` is true, generates complex topologies with many branches
3061    /// and octopus merges. Otherwise generates more realistic linear histories
3062    /// with occasional branches.
3063    fn generate_random_commit_dag(
3064        rng: &mut StdRng,
3065        num_commits: usize,
3066        adversarial: bool,
3067    ) -> Vec<Arc<InitialGraphCommitData>> {
3068        if num_commits == 0 {
3069            return Vec::new();
3070        }
3071
3072        let mut commits: Vec<Arc<InitialGraphCommitData>> = Vec::with_capacity(num_commits);
3073        let oids: Vec<Oid> = (0..num_commits).map(|_| Oid::random(rng)).collect();
3074
3075        for i in 0..num_commits {
3076            let sha = oids[i];
3077
3078            let parents = if i == num_commits - 1 {
3079                smallvec![]
3080            } else {
3081                generate_parents_from_oids(rng, &oids, i, num_commits, adversarial)
3082            };
3083
3084            let ref_names = if i == 0 {
3085                vec!["HEAD".into(), "main".into()]
3086            } else if adversarial && rng.random_bool(0.1) {
3087                vec![format!("branch-{}", i).into()]
3088            } else {
3089                Vec::new()
3090            };
3091
3092            commits.push(Arc::new(InitialGraphCommitData {
3093                sha,
3094                parents,
3095                ref_names,
3096            }));
3097        }
3098
3099        commits
3100    }
3101
3102    fn generate_parents_from_oids(
3103        rng: &mut StdRng,
3104        oids: &[Oid],
3105        current_idx: usize,
3106        num_commits: usize,
3107        adversarial: bool,
3108    ) -> SmallVec<[Oid; 1]> {
3109        let remaining = num_commits - current_idx - 1;
3110        if remaining == 0 {
3111            return smallvec![];
3112        }
3113
3114        if adversarial {
3115            let merge_chance = 0.4;
3116            let octopus_chance = 0.15;
3117
3118            if remaining >= 3 && rng.random_bool(octopus_chance) {
3119                let num_parents = rng.random_range(3..=remaining.min(5));
3120                let mut parent_indices: Vec<usize> = (current_idx + 1..num_commits).collect();
3121                parent_indices.shuffle(rng);
3122                parent_indices
3123                    .into_iter()
3124                    .take(num_parents)
3125                    .map(|idx| oids[idx])
3126                    .collect()
3127            } else if remaining >= 2 && rng.random_bool(merge_chance) {
3128                let mut parent_indices: Vec<usize> = (current_idx + 1..num_commits).collect();
3129                parent_indices.shuffle(rng);
3130                parent_indices
3131                    .into_iter()
3132                    .take(2)
3133                    .map(|idx| oids[idx])
3134                    .collect()
3135            } else {
3136                let parent_idx = rng.random_range(current_idx + 1..num_commits);
3137                smallvec![oids[parent_idx]]
3138            }
3139        } else {
3140            let merge_chance = 0.15;
3141            let skip_chance = 0.1;
3142
3143            if remaining >= 2 && rng.random_bool(merge_chance) {
3144                let first_parent = current_idx + 1;
3145                let second_parent = rng.random_range(current_idx + 2..num_commits);
3146                smallvec![oids[first_parent], oids[second_parent]]
3147            } else if rng.random_bool(skip_chance) && remaining >= 2 {
3148                let skip = rng.random_range(1..remaining.min(3));
3149                smallvec![oids[current_idx + 1 + skip]]
3150            } else {
3151                smallvec![oids[current_idx + 1]]
3152            }
3153        }
3154    }
3155
3156    fn build_oid_to_row_map(graph: &GraphData) -> HashMap<Oid, usize> {
3157        graph
3158            .commits
3159            .iter()
3160            .enumerate()
3161            .map(|(idx, entry)| (entry.data.sha, idx))
3162            .collect()
3163    }
3164
3165    fn verify_commit_order(
3166        graph: &GraphData,
3167        commits: &[Arc<InitialGraphCommitData>],
3168    ) -> Result<()> {
3169        if graph.commits.len() != commits.len() {
3170            bail!(
3171                "Commit count mismatch: graph has {} commits, expected {}",
3172                graph.commits.len(),
3173                commits.len()
3174            );
3175        }
3176
3177        for (idx, (graph_commit, expected_commit)) in
3178            graph.commits.iter().zip(commits.iter()).enumerate()
3179        {
3180            if graph_commit.data.sha != expected_commit.sha {
3181                bail!(
3182                    "Commit order mismatch at index {}: graph has {:?}, expected {:?}",
3183                    idx,
3184                    graph_commit.data.sha,
3185                    expected_commit.sha
3186                );
3187            }
3188        }
3189
3190        Ok(())
3191    }
3192
3193    fn verify_line_endpoints(graph: &GraphData, oid_to_row: &HashMap<Oid, usize>) -> Result<()> {
3194        for line in &graph.lines {
3195            let child_row = *oid_to_row
3196                .get(&line.child)
3197                .context("Line references non-existent child commit")?;
3198
3199            let parent_row = *oid_to_row
3200                .get(&line.parent)
3201                .context("Line references non-existent parent commit")?;
3202
3203            if child_row >= parent_row {
3204                bail!(
3205                    "child_row ({}) must be < parent_row ({})",
3206                    child_row,
3207                    parent_row
3208                );
3209            }
3210
3211            if line.full_interval.start != child_row {
3212                bail!(
3213                    "full_interval.start ({}) != child_row ({})",
3214                    line.full_interval.start,
3215                    child_row
3216                );
3217            }
3218
3219            if line.full_interval.end != parent_row {
3220                bail!(
3221                    "full_interval.end ({}) != parent_row ({})",
3222                    line.full_interval.end,
3223                    parent_row
3224                );
3225            }
3226
3227            if let Some(last_segment) = line.segments.last() {
3228                let segment_end_row = match last_segment {
3229                    CommitLineSegment::Straight { to_row } => *to_row,
3230                    CommitLineSegment::Curve { on_row, .. } => *on_row,
3231                };
3232
3233                if segment_end_row != line.full_interval.end {
3234                    bail!(
3235                        "last segment ends at row {} but full_interval.end is {}",
3236                        segment_end_row,
3237                        line.full_interval.end
3238                    );
3239                }
3240            }
3241        }
3242
3243        Ok(())
3244    }
3245
3246    fn verify_column_correctness(
3247        graph: &GraphData,
3248        oid_to_row: &HashMap<Oid, usize>,
3249    ) -> Result<()> {
3250        for line in &graph.lines {
3251            let child_row = *oid_to_row
3252                .get(&line.child)
3253                .context("Line references non-existent child commit")?;
3254
3255            let parent_row = *oid_to_row
3256                .get(&line.parent)
3257                .context("Line references non-existent parent commit")?;
3258
3259            let child_lane = graph.commits[child_row].lane;
3260            if line.child_column != child_lane {
3261                bail!(
3262                    "child_column ({}) != child's lane ({})",
3263                    line.child_column,
3264                    child_lane
3265                );
3266            }
3267
3268            let mut current_column = line.child_column;
3269            for segment in &line.segments {
3270                if let CommitLineSegment::Curve { to_column, .. } = segment {
3271                    current_column = *to_column;
3272                }
3273            }
3274
3275            let parent_lane = graph.commits[parent_row].lane;
3276            if current_column != parent_lane {
3277                bail!(
3278                    "ending column ({}) != parent's lane ({})",
3279                    current_column,
3280                    parent_lane
3281                );
3282            }
3283        }
3284
3285        Ok(())
3286    }
3287
3288    fn verify_segment_continuity(graph: &GraphData) -> Result<()> {
3289        for line in &graph.lines {
3290            if line.segments.is_empty() {
3291                bail!("Line has no segments");
3292            }
3293
3294            let mut current_row = line.full_interval.start;
3295
3296            for (idx, segment) in line.segments.iter().enumerate() {
3297                let segment_end_row = match segment {
3298                    CommitLineSegment::Straight { to_row } => *to_row,
3299                    CommitLineSegment::Curve { on_row, .. } => *on_row,
3300                };
3301
3302                if segment_end_row < current_row {
3303                    bail!(
3304                        "segment {} ends at row {} which is before current row {}",
3305                        idx,
3306                        segment_end_row,
3307                        current_row
3308                    );
3309                }
3310
3311                current_row = segment_end_row;
3312            }
3313        }
3314
3315        Ok(())
3316    }
3317
3318    fn verify_line_overlaps(graph: &GraphData) -> Result<()> {
3319        for line in &graph.lines {
3320            let child_row = line.full_interval.start;
3321
3322            let mut current_column = line.child_column;
3323            let mut current_row = child_row;
3324
3325            for segment in &line.segments {
3326                match segment {
3327                    CommitLineSegment::Straight { to_row } => {
3328                        for row in (current_row + 1)..*to_row {
3329                            if row < graph.commits.len() {
3330                                let commit_at_row = &graph.commits[row];
3331                                if commit_at_row.lane == current_column {
3332                                    bail!(
3333                                        "straight segment from row {} to {} in column {} passes through commit {:?} at row {}",
3334                                        current_row,
3335                                        to_row,
3336                                        current_column,
3337                                        commit_at_row.data.sha,
3338                                        row
3339                                    );
3340                                }
3341                            }
3342                        }
3343                        current_row = *to_row;
3344                    }
3345                    CommitLineSegment::Curve {
3346                        to_column, on_row, ..
3347                    } => {
3348                        current_column = *to_column;
3349                        current_row = *on_row;
3350                    }
3351                }
3352            }
3353        }
3354
3355        Ok(())
3356    }
3357
3358    fn verify_coverage(graph: &GraphData) -> Result<()> {
3359        let mut expected_edges: HashSet<(Oid, Oid)> = HashSet::default();
3360        for entry in &graph.commits {
3361            for parent in &entry.data.parents {
3362                expected_edges.insert((entry.data.sha, *parent));
3363            }
3364        }
3365
3366        let mut found_edges: HashSet<(Oid, Oid)> = HashSet::default();
3367        for line in &graph.lines {
3368            let edge = (line.child, line.parent);
3369
3370            if !found_edges.insert(edge) {
3371                bail!(
3372                    "Duplicate line found for edge {:?} -> {:?}",
3373                    line.child,
3374                    line.parent
3375                );
3376            }
3377
3378            if !expected_edges.contains(&edge) {
3379                bail!(
3380                    "Orphan line found: {:?} -> {:?} is not in the commit graph",
3381                    line.child,
3382                    line.parent
3383                );
3384            }
3385        }
3386
3387        for (child, parent) in &expected_edges {
3388            if !found_edges.contains(&(*child, *parent)) {
3389                bail!("Missing line for edge {:?} -> {:?}", child, parent);
3390            }
3391        }
3392
3393        assert_eq!(
3394            expected_edges.symmetric_difference(&found_edges).count(),
3395            0,
3396            "The symmetric difference should be zero"
3397        );
3398
3399        Ok(())
3400    }
3401
3402    fn verify_merge_line_optimality(
3403        graph: &GraphData,
3404        oid_to_row: &HashMap<Oid, usize>,
3405    ) -> Result<()> {
3406        for line in &graph.lines {
3407            let first_segment = line.segments.first();
3408            let is_merge_line = matches!(
3409                first_segment,
3410                Some(CommitLineSegment::Curve {
3411                    curve_kind: CurveKind::Merge,
3412                    ..
3413                })
3414            );
3415
3416            if !is_merge_line {
3417                continue;
3418            }
3419
3420            let child_row = *oid_to_row
3421                .get(&line.child)
3422                .context("Line references non-existent child commit")?;
3423
3424            let parent_row = *oid_to_row
3425                .get(&line.parent)
3426                .context("Line references non-existent parent commit")?;
3427
3428            let parent_lane = graph.commits[parent_row].lane;
3429
3430            let Some(CommitLineSegment::Curve { to_column, .. }) = first_segment else {
3431                continue;
3432            };
3433
3434            let curves_directly_to_parent = *to_column == parent_lane;
3435
3436            if !curves_directly_to_parent {
3437                continue;
3438            }
3439
3440            let curve_row = child_row + 1;
3441            let has_commits_in_path = graph.commits[curve_row..parent_row]
3442                .iter()
3443                .any(|c| c.lane == parent_lane);
3444
3445            if has_commits_in_path {
3446                bail!(
3447                    "Merge line from {:?} to {:?} curves directly to parent lane {} but there are commits in that lane between rows {} and {}",
3448                    line.child,
3449                    line.parent,
3450                    parent_lane,
3451                    curve_row,
3452                    parent_row
3453                );
3454            }
3455
3456            let curve_ends_at_parent = curve_row == parent_row;
3457
3458            if curve_ends_at_parent {
3459                if line.segments.len() != 1 {
3460                    bail!(
3461                        "Merge line from {:?} to {:?} curves directly to parent (curve_row == parent_row), but has {} segments instead of 1 [MergeCurve]",
3462                        line.child,
3463                        line.parent,
3464                        line.segments.len()
3465                    );
3466                }
3467            } else {
3468                if line.segments.len() != 2 {
3469                    bail!(
3470                        "Merge line from {:?} to {:?} curves directly to parent lane without overlap, but has {} segments instead of 2 [MergeCurve, Straight]",
3471                        line.child,
3472                        line.parent,
3473                        line.segments.len()
3474                    );
3475                }
3476
3477                let is_straight_segment = matches!(
3478                    line.segments.get(1),
3479                    Some(CommitLineSegment::Straight { .. })
3480                );
3481
3482                if !is_straight_segment {
3483                    bail!(
3484                        "Merge line from {:?} to {:?} curves directly to parent lane without overlap, but second segment is not a Straight segment",
3485                        line.child,
3486                        line.parent
3487                    );
3488                }
3489            }
3490        }
3491
3492        Ok(())
3493    }
3494
3495    fn verify_all_invariants(
3496        graph: &GraphData,
3497        commits: &[Arc<InitialGraphCommitData>],
3498    ) -> Result<()> {
3499        let oid_to_row = build_oid_to_row_map(graph);
3500
3501        verify_commit_order(graph, commits).context("commit order")?;
3502        verify_line_endpoints(graph, &oid_to_row).context("line endpoints")?;
3503        verify_column_correctness(graph, &oid_to_row).context("column correctness")?;
3504        verify_segment_continuity(graph).context("segment continuity")?;
3505        verify_merge_line_optimality(graph, &oid_to_row).context("merge line optimality")?;
3506        verify_coverage(graph).context("coverage")?;
3507        verify_line_overlaps(graph).context("line overlaps")?;
3508        Ok(())
3509    }
3510
3511    #[test]
3512    fn test_git_graph_merge_commits() {
3513        let mut rng = StdRng::seed_from_u64(42);
3514
3515        let oid1 = Oid::random(&mut rng);
3516        let oid2 = Oid::random(&mut rng);
3517        let oid3 = Oid::random(&mut rng);
3518        let oid4 = Oid::random(&mut rng);
3519
3520        let commits = vec![
3521            Arc::new(InitialGraphCommitData {
3522                sha: oid1,
3523                parents: smallvec![oid2, oid3],
3524                ref_names: vec!["HEAD".into()],
3525            }),
3526            Arc::new(InitialGraphCommitData {
3527                sha: oid2,
3528                parents: smallvec![oid4],
3529                ref_names: vec![],
3530            }),
3531            Arc::new(InitialGraphCommitData {
3532                sha: oid3,
3533                parents: smallvec![oid4],
3534                ref_names: vec![],
3535            }),
3536            Arc::new(InitialGraphCommitData {
3537                sha: oid4,
3538                parents: smallvec![],
3539                ref_names: vec![],
3540            }),
3541        ];
3542
3543        let mut graph_data = GraphData::new(8);
3544        graph_data.add_commits(&commits);
3545
3546        if let Err(error) = verify_all_invariants(&graph_data, &commits) {
3547            panic!("Graph invariant violation for merge commits:\n{}", error);
3548        }
3549    }
3550
3551    #[test]
3552    fn test_git_graph_linear_commits() {
3553        let mut rng = StdRng::seed_from_u64(42);
3554
3555        let oid1 = Oid::random(&mut rng);
3556        let oid2 = Oid::random(&mut rng);
3557        let oid3 = Oid::random(&mut rng);
3558
3559        let commits = vec![
3560            Arc::new(InitialGraphCommitData {
3561                sha: oid1,
3562                parents: smallvec![oid2],
3563                ref_names: vec!["HEAD".into()],
3564            }),
3565            Arc::new(InitialGraphCommitData {
3566                sha: oid2,
3567                parents: smallvec![oid3],
3568                ref_names: vec![],
3569            }),
3570            Arc::new(InitialGraphCommitData {
3571                sha: oid3,
3572                parents: smallvec![],
3573                ref_names: vec![],
3574            }),
3575        ];
3576
3577        let mut graph_data = GraphData::new(8);
3578        graph_data.add_commits(&commits);
3579
3580        if let Err(error) = verify_all_invariants(&graph_data, &commits) {
3581            panic!("Graph invariant violation for linear commits:\n{}", error);
3582        }
3583    }
3584
3585    #[test]
3586    fn test_git_graph_random_commits() {
3587        for seed in 0..100 {
3588            let mut rng = StdRng::seed_from_u64(seed);
3589
3590            let adversarial = rng.random_bool(0.2);
3591            let num_commits = if adversarial {
3592                rng.random_range(10..100)
3593            } else {
3594                rng.random_range(5..50)
3595            };
3596
3597            let commits = generate_random_commit_dag(&mut rng, num_commits, adversarial);
3598
3599            assert_eq!(
3600                num_commits,
3601                commits.len(),
3602                "seed={}: Generate random commit dag didn't generate the correct amount of commits",
3603                seed
3604            );
3605
3606            let mut graph_data = GraphData::new(8);
3607            graph_data.add_commits(&commits);
3608
3609            if let Err(error) = verify_all_invariants(&graph_data, &commits) {
3610                panic!(
3611                    "Graph invariant violation (seed={}, adversarial={}, num_commits={}):\n{:#}",
3612                    seed, adversarial, num_commits, error
3613                );
3614            }
3615        }
3616    }
3617
3618    // The full integration test has less iterations because it's significantly slower
3619    // than the random commit test
3620    #[gpui::test(iterations = 10)]
3621    async fn test_git_graph_random_integration(mut rng: StdRng, cx: &mut TestAppContext) {
3622        init_test(cx);
3623
3624        let adversarial = rng.random_bool(0.2);
3625        let num_commits = if adversarial {
3626            rng.random_range(10..100)
3627        } else {
3628            rng.random_range(5..50)
3629        };
3630
3631        let commits = generate_random_commit_dag(&mut rng, num_commits, adversarial);
3632
3633        let fs = FakeFs::new(cx.executor());
3634        fs.insert_tree(
3635            Path::new("/project"),
3636            json!({
3637                ".git": {},
3638                "file.txt": "content",
3639            }),
3640        )
3641        .await;
3642
3643        fs.set_graph_commits(Path::new("/project/.git"), commits.clone());
3644
3645        let project = Project::test(fs.clone(), [Path::new("/project")], cx).await;
3646        cx.run_until_parked();
3647
3648        let repository = project.read_with(cx, |project, cx| {
3649            project
3650                .active_repository(cx)
3651                .expect("should have a repository")
3652        });
3653
3654        repository.update(cx, |repo, cx| {
3655            repo.graph_data(
3656                crate::LogSource::default(),
3657                crate::LogOrder::default(),
3658                0..usize::MAX,
3659                cx,
3660            );
3661        });
3662        cx.run_until_parked();
3663
3664        let graph_commits: Vec<Arc<InitialGraphCommitData>> = repository.update(cx, |repo, cx| {
3665            repo.graph_data(
3666                crate::LogSource::default(),
3667                crate::LogOrder::default(),
3668                0..usize::MAX,
3669                cx,
3670            )
3671            .commits
3672            .to_vec()
3673        });
3674
3675        let mut graph_data = GraphData::new(8);
3676        graph_data.add_commits(&graph_commits);
3677
3678        if let Err(error) = verify_all_invariants(&graph_data, &commits) {
3679            panic!(
3680                "Graph invariant violation (adversarial={}, num_commits={}):\n{:#}",
3681                adversarial, num_commits, error
3682            );
3683        }
3684    }
3685
3686    #[gpui::test]
3687    async fn test_initial_graph_data_not_cleared_on_initial_loading(cx: &mut TestAppContext) {
3688        init_test(cx);
3689
3690        let fs = FakeFs::new(cx.executor());
3691        fs.insert_tree(
3692            Path::new("/project"),
3693            json!({
3694                ".git": {},
3695                "file.txt": "content",
3696            }),
3697        )
3698        .await;
3699
3700        let mut rng = StdRng::seed_from_u64(42);
3701        let commits = generate_random_commit_dag(&mut rng, 10, false);
3702        fs.set_graph_commits(Path::new("/project/.git"), commits.clone());
3703
3704        let project = Project::test(fs.clone(), [Path::new("/project")], cx).await;
3705        let observed_repository_events = Arc::new(Mutex::new(Vec::new()));
3706        project.update(cx, |project, cx| {
3707            let observed_repository_events = observed_repository_events.clone();
3708            cx.subscribe(project.git_store(), move |_, _, event, _| {
3709                if let GitStoreEvent::RepositoryUpdated(_, repository_event, true) = event {
3710                    observed_repository_events
3711                        .lock()
3712                        .expect("repository event mutex should be available")
3713                        .push(repository_event.clone());
3714                }
3715            })
3716            .detach();
3717        });
3718
3719        let repository = project.read_with(cx, |project, cx| {
3720            project
3721                .active_repository(cx)
3722                .expect("should have a repository")
3723        });
3724
3725        repository.update(cx, |repo, cx| {
3726            repo.graph_data(
3727                crate::LogSource::default(),
3728                crate::LogOrder::default(),
3729                0..usize::MAX,
3730                cx,
3731            );
3732        });
3733
3734        project
3735            .update(cx, |project, cx| project.git_scans_complete(cx))
3736            .await;
3737        cx.run_until_parked();
3738
3739        let observed_repository_events = observed_repository_events
3740            .lock()
3741            .expect("repository event mutex should be available");
3742        assert!(
3743            observed_repository_events
3744                .iter()
3745                .any(|event| matches!(event, RepositoryEvent::HeadChanged)),
3746            "initial repository scan should emit HeadChanged"
3747        );
3748        let commit_count_after = repository.read_with(cx, |repo, _| {
3749            repo.get_graph_data(crate::LogSource::default(), crate::LogOrder::default())
3750                .map(|data| data.commit_data.len())
3751                .unwrap()
3752        });
3753        assert_eq!(
3754            commits.len(),
3755            commit_count_after,
3756            "initial_graph_data should remain populated after events emitted by initial repository scan"
3757        );
3758    }
3759
3760    #[gpui::test]
3761    async fn test_graph_data_repopulated_from_cache_after_repo_switch(cx: &mut TestAppContext) {
3762        init_test(cx);
3763
3764        let fs = FakeFs::new(cx.executor());
3765        fs.insert_tree(
3766            Path::new("/project_a"),
3767            json!({
3768                ".git": {},
3769                "file.txt": "content",
3770            }),
3771        )
3772        .await;
3773        fs.insert_tree(
3774            Path::new("/project_b"),
3775            json!({
3776                ".git": {},
3777                "other.txt": "content",
3778            }),
3779        )
3780        .await;
3781
3782        let mut rng = StdRng::seed_from_u64(42);
3783        let commits = generate_random_commit_dag(&mut rng, 10, false);
3784        fs.set_graph_commits(Path::new("/project_a/.git"), commits.clone());
3785
3786        let project = Project::test(
3787            fs.clone(),
3788            [Path::new("/project_a"), Path::new("/project_b")],
3789            cx,
3790        )
3791        .await;
3792        cx.run_until_parked();
3793
3794        let (first_repository, second_repository) = project.read_with(cx, |project, cx| {
3795            let mut first_repository = None;
3796            let mut second_repository = None;
3797
3798            for repository in project.repositories(cx).values() {
3799                let work_directory_abs_path = &repository.read(cx).work_directory_abs_path;
3800                if work_directory_abs_path.as_ref() == Path::new("/project_a") {
3801                    first_repository = Some(repository.clone());
3802                } else if work_directory_abs_path.as_ref() == Path::new("/project_b") {
3803                    second_repository = Some(repository.clone());
3804                }
3805            }
3806
3807            (
3808                first_repository.expect("should have repository for /project_a"),
3809                second_repository.expect("should have repository for /project_b"),
3810            )
3811        });
3812        first_repository.update(cx, |repository, cx| repository.set_as_active_repository(cx));
3813        cx.run_until_parked();
3814
3815        let (multi_workspace, cx) = cx.add_window_view(|window, cx| {
3816            workspace::MultiWorkspace::test_new(project.clone(), window, cx)
3817        });
3818
3819        let workspace_weak =
3820            multi_workspace.read_with(&*cx, |multi, _| multi.workspace().downgrade());
3821        let git_graph = cx.new_window_entity(|window, cx| {
3822            GitGraph::new(
3823                first_repository.read(cx).id,
3824                project.read(cx).git_store().clone(),
3825                workspace_weak,
3826                window,
3827                cx,
3828            )
3829        });
3830        cx.run_until_parked();
3831
3832        // Verify initial graph data is loaded
3833        let initial_commit_count =
3834            git_graph.read_with(&*cx, |graph, _| graph.graph_data.commits.len());
3835        assert!(
3836            initial_commit_count > 0,
3837            "graph data should have been loaded, got 0 commits"
3838        );
3839
3840        git_graph.update(cx, |graph, cx| {
3841            graph.set_repo_id(second_repository.read(cx).id, cx)
3842        });
3843        cx.run_until_parked();
3844
3845        let commit_count_after_clear =
3846            git_graph.read_with(&*cx, |graph, _| graph.graph_data.commits.len());
3847        assert_eq!(
3848            commit_count_after_clear, 0,
3849            "graph_data should be cleared after switching away"
3850        );
3851
3852        git_graph.update(cx, |graph, cx| {
3853            graph.set_repo_id(first_repository.read(cx).id, cx)
3854        });
3855        cx.run_until_parked();
3856
3857        cx.draw(
3858            point(px(0.), px(0.)),
3859            gpui::size(px(1200.), px(800.)),
3860            |_, _| git_graph.clone().into_any_element(),
3861        );
3862        cx.run_until_parked();
3863
3864        // Verify graph data is reloaded from repository cache on switch back
3865        let reloaded_commit_count =
3866            git_graph.read_with(&*cx, |graph, _| graph.graph_data.commits.len());
3867        assert_eq!(
3868            reloaded_commit_count,
3869            commits.len(),
3870            "graph data should be reloaded after switching back"
3871        );
3872    }
3873
3874    #[gpui::test]
3875    async fn test_graph_data_reloaded_after_stash_change(cx: &mut TestAppContext) {
3876        init_test(cx);
3877
3878        let fs = FakeFs::new(cx.executor());
3879        fs.insert_tree(
3880            Path::new("/project"),
3881            json!({
3882                ".git": {},
3883                "file.txt": "content",
3884            }),
3885        )
3886        .await;
3887
3888        let initial_head = Oid::from_bytes(&[1; 20]).unwrap();
3889        let initial_stash = Oid::from_bytes(&[2; 20]).unwrap();
3890        let updated_head = Oid::from_bytes(&[3; 20]).unwrap();
3891        let updated_stash = Oid::from_bytes(&[4; 20]).unwrap();
3892
3893        fs.set_graph_commits(
3894            Path::new("/project/.git"),
3895            vec![
3896                Arc::new(InitialGraphCommitData {
3897                    sha: initial_head,
3898                    parents: smallvec![initial_stash],
3899                    ref_names: vec!["HEAD".into(), "refs/heads/main".into()],
3900                }),
3901                Arc::new(InitialGraphCommitData {
3902                    sha: initial_stash,
3903                    parents: smallvec![],
3904                    ref_names: vec!["refs/stash".into()],
3905                }),
3906            ],
3907        );
3908        fs.with_git_state(Path::new("/project/.git"), true, |state| {
3909            state.stash_entries = git::stash::GitStash {
3910                entries: vec![git::stash::StashEntry {
3911                    index: 0,
3912                    oid: initial_stash,
3913                    message: "initial stash".to_string(),
3914                    branch: Some("main".to_string()),
3915                    timestamp: 1,
3916                }]
3917                .into(),
3918            };
3919        })
3920        .unwrap();
3921
3922        let project = Project::test(fs.clone(), [Path::new("/project")], cx).await;
3923        cx.run_until_parked();
3924
3925        let repository = project.read_with(cx, |project, cx| {
3926            project
3927                .active_repository(cx)
3928                .expect("should have a repository")
3929        });
3930
3931        let (multi_workspace, cx) = cx.add_window_view(|window, cx| {
3932            workspace::MultiWorkspace::test_new(project.clone(), window, cx)
3933        });
3934        let workspace_weak =
3935            multi_workspace.read_with(&*cx, |multi, _| multi.workspace().downgrade());
3936        let git_graph = cx.new_window_entity(|window, cx| {
3937            GitGraph::new(
3938                repository.read(cx).id,
3939                project.read(cx).git_store().clone(),
3940                workspace_weak,
3941                window,
3942                cx,
3943            )
3944        });
3945        cx.run_until_parked();
3946
3947        let initial_shas = git_graph.read_with(&*cx, |graph, _| {
3948            graph
3949                .graph_data
3950                .commits
3951                .iter()
3952                .map(|commit| commit.data.sha)
3953                .collect::<Vec<_>>()
3954        });
3955        assert_eq!(initial_shas, vec![initial_head, initial_stash]);
3956
3957        fs.set_graph_commits(
3958            Path::new("/project/.git"),
3959            vec![
3960                Arc::new(InitialGraphCommitData {
3961                    sha: updated_head,
3962                    parents: smallvec![updated_stash],
3963                    ref_names: vec!["HEAD".into(), "refs/heads/main".into()],
3964                }),
3965                Arc::new(InitialGraphCommitData {
3966                    sha: updated_stash,
3967                    parents: smallvec![],
3968                    ref_names: vec!["refs/stash".into()],
3969                }),
3970            ],
3971        );
3972        fs.with_git_state(Path::new("/project/.git"), true, |state| {
3973            state.stash_entries = git::stash::GitStash {
3974                entries: vec![git::stash::StashEntry {
3975                    index: 0,
3976                    oid: updated_stash,
3977                    message: "updated stash".to_string(),
3978                    branch: Some("main".to_string()),
3979                    timestamp: 1,
3980                }]
3981                .into(),
3982            };
3983        })
3984        .unwrap();
3985
3986        project
3987            .update(cx, |project, cx| project.git_scans_complete(cx))
3988            .await;
3989        cx.run_until_parked();
3990
3991        cx.draw(
3992            point(px(0.), px(0.)),
3993            gpui::size(px(1200.), px(800.)),
3994            |_, _| git_graph.clone().into_any_element(),
3995        );
3996        cx.run_until_parked();
3997
3998        let reloaded_shas = git_graph.read_with(&*cx, |graph, _| {
3999            graph
4000                .graph_data
4001                .commits
4002                .iter()
4003                .map(|commit| commit.data.sha)
4004                .collect::<Vec<_>>()
4005        });
4006        assert_eq!(reloaded_shas, vec![updated_head, updated_stash]);
4007    }
4008
4009    #[gpui::test]
4010    async fn test_git_graph_row_at_position_rounding(cx: &mut TestAppContext) {
4011        init_test(cx);
4012
4013        let fs = FakeFs::new(cx.executor());
4014        fs.insert_tree(
4015            Path::new("/project"),
4016            serde_json::json!({
4017                ".git": {},
4018                "file.txt": "content",
4019            }),
4020        )
4021        .await;
4022
4023        let mut rng = StdRng::seed_from_u64(42);
4024        let commits = generate_random_commit_dag(&mut rng, 10, false);
4025        fs.set_graph_commits(Path::new("/project/.git"), commits.clone());
4026
4027        let project = Project::test(fs.clone(), [Path::new("/project")], cx).await;
4028        cx.run_until_parked();
4029
4030        let repository = project.read_with(cx, |project, cx| {
4031            project
4032                .active_repository(cx)
4033                .expect("should have a repository")
4034        });
4035
4036        let (multi_workspace, cx) = cx.add_window_view(|window, cx| {
4037            workspace::MultiWorkspace::test_new(project.clone(), window, cx)
4038        });
4039
4040        let workspace_weak =
4041            multi_workspace.read_with(&*cx, |multi, _| multi.workspace().downgrade());
4042
4043        let git_graph = cx.new_window_entity(|window, cx| {
4044            GitGraph::new(
4045                repository.read(cx).id,
4046                project.read(cx).git_store().clone(),
4047                workspace_weak,
4048                window,
4049                cx,
4050            )
4051        });
4052        cx.run_until_parked();
4053
4054        git_graph.update(cx, |graph, cx| {
4055            assert!(
4056                graph.graph_data.commits.len() >= 10,
4057                "graph should load dummy commits"
4058            );
4059
4060            graph.row_height = px(20.0);
4061            let origin_y = px(100.0);
4062            graph.graph_canvas_bounds.set(Some(Bounds {
4063                origin: point(px(0.0), origin_y),
4064                size: gpui::size(px(100.0), px(1000.0)),
4065            }));
4066
4067            graph.table_interaction_state.update(cx, |state, _| {
4068                state.set_scroll_offset(point(px(0.0), px(-15.0)))
4069            });
4070            let pos_y = origin_y + px(10.0);
4071            let absolute_calc_row = graph.row_at_position(pos_y, cx);
4072
4073            assert_eq!(
4074                absolute_calc_row,
4075                Some(1),
4076                "Row calculation should yield absolute row exactly"
4077            );
4078        });
4079    }
4080}