repository.rs

   1use crate::commit::parse_git_diff_name_status;
   2use crate::stash::GitStash;
   3use crate::status::{DiffTreeType, GitStatus, StatusCode, TreeDiff};
   4use crate::{Oid, RunHook, SHORT_SHA_LENGTH};
   5use anyhow::{Context as _, Result, anyhow, bail};
   6use collections::HashMap;
   7use futures::channel::oneshot;
   8use futures::future::BoxFuture;
   9use futures::io::BufWriter;
  10use futures::{AsyncWriteExt, FutureExt as _, select_biased};
  11use git2::{BranchType, ErrorCode};
  12use gpui::{AppContext as _, AsyncApp, BackgroundExecutor, SharedString, Task};
  13use parking_lot::Mutex;
  14use rope::Rope;
  15use schemars::JsonSchema;
  16use serde::Deserialize;
  17use smallvec::SmallVec;
  18use smol::channel::Sender;
  19use smol::io::{AsyncBufReadExt, AsyncReadExt, BufReader};
  20use text::LineEnding;
  21
  22use std::collections::HashSet;
  23use std::ffi::{OsStr, OsString};
  24
  25use std::process::ExitStatus;
  26use std::str::FromStr;
  27use std::{
  28    cmp::Ordering,
  29    future,
  30    path::{Path, PathBuf},
  31    sync::Arc,
  32};
  33use sum_tree::MapSeekTarget;
  34use thiserror::Error;
  35use util::command::{Stdio, new_command};
  36use util::paths::PathStyle;
  37use util::rel_path::RelPath;
  38use util::{ResultExt, normalize_path, paths};
  39use uuid::Uuid;
  40
  41pub use askpass::{AskPassDelegate, AskPassResult, AskPassSession};
  42
  43pub const REMOTE_CANCELLED_BY_USER: &str = "Operation cancelled by user";
  44
  45/// Format string used in graph log to get initial data for the git graph
  46/// %H - Full commit hash
  47/// %P - Parent hashes
  48/// %D - Ref names
  49/// %x00 - Null byte separator, used to split up commit data
  50static GRAPH_COMMIT_FORMAT: &str = "--format=%H%x00%P%x00%D";
  51
  52/// Number of commits to load per chunk for the git graph.
  53pub const GRAPH_CHUNK_SIZE: usize = 1000;
  54
  55/// Default value for the `git.worktree_directory` setting.
  56pub const DEFAULT_WORKTREE_DIRECTORY: &str = "../worktrees";
  57
  58/// Resolves the configured worktree directory to an absolute path.
  59///
  60/// `worktree_directory_setting` is the raw string from the user setting
  61/// (e.g. `"../worktrees"`, `".git/zed-worktrees"`, `"my-worktrees/"`).
  62/// Trailing slashes are stripped. The path is resolved relative to
  63/// `working_directory` (the repository's working directory root).
  64///
  65/// When the resolved directory falls outside the working directory
  66/// (e.g. `"../worktrees"`), the repository's directory name is
  67/// automatically appended so that sibling repos don't collide.
  68/// For example, with working directory `~/code/zed` and setting
  69/// `"../worktrees"`, this returns `~/code/worktrees/zed`.
  70///
  71/// When the resolved directory is inside the working directory
  72/// (e.g. `".git/zed-worktrees"`), no extra component is added
  73/// because the path is already project-scoped.
  74pub fn resolve_worktree_directory(
  75    working_directory: &Path,
  76    worktree_directory_setting: &str,
  77) -> PathBuf {
  78    let trimmed = worktree_directory_setting.trim_end_matches(['/', '\\']);
  79    let joined = working_directory.join(trimmed);
  80    let resolved = normalize_path(&joined);
  81
  82    if resolved.starts_with(working_directory) {
  83        resolved
  84    } else if let Some(repo_dir_name) = working_directory.file_name() {
  85        resolved.join(repo_dir_name)
  86    } else {
  87        resolved
  88    }
  89}
  90
  91/// Validates that the resolved worktree directory is acceptable:
  92/// - The setting must not be an absolute path.
  93/// - The resolved path must be either a subdirectory of the working
  94///   directory or a subdirectory of its parent (i.e., a sibling).
  95///
  96/// Returns `Ok(resolved_path)` or an error with a user-facing message.
  97pub fn validate_worktree_directory(
  98    working_directory: &Path,
  99    worktree_directory_setting: &str,
 100) -> Result<PathBuf> {
 101    // Check the original setting before trimming, since a path like "///"
 102    // is absolute but becomes "" after stripping trailing separators.
 103    // Also check for leading `/` or `\` explicitly, because on Windows
 104    // `Path::is_absolute()` requires a drive letter — so `/tmp/worktrees`
 105    // would slip through even though it's clearly not a relative path.
 106    if Path::new(worktree_directory_setting).is_absolute()
 107        || worktree_directory_setting.starts_with('/')
 108        || worktree_directory_setting.starts_with('\\')
 109    {
 110        anyhow::bail!(
 111            "git.worktree_directory must be a relative path, got: {worktree_directory_setting:?}"
 112        );
 113    }
 114
 115    if worktree_directory_setting.is_empty() {
 116        anyhow::bail!("git.worktree_directory must not be empty");
 117    }
 118
 119    let trimmed = worktree_directory_setting.trim_end_matches(['/', '\\']);
 120    if trimmed == ".." {
 121        anyhow::bail!("git.worktree_directory must not be \"..\" (use \"../some-name\" instead)");
 122    }
 123
 124    let resolved = resolve_worktree_directory(working_directory, worktree_directory_setting);
 125
 126    let parent = working_directory.parent().unwrap_or(working_directory);
 127
 128    if !resolved.starts_with(parent) {
 129        anyhow::bail!(
 130            "git.worktree_directory resolved to {resolved:?}, which is outside \
 131             the project root and its parent directory. It must resolve to a \
 132             subdirectory of {working_directory:?} or a sibling of it."
 133        );
 134    }
 135
 136    Ok(resolved)
 137}
 138
 139/// Returns the full absolute path for a specific branch's worktree
 140/// given the resolved worktree directory.
 141pub fn worktree_path_for_branch(
 142    working_directory: &Path,
 143    worktree_directory_setting: &str,
 144    branch: &str,
 145) -> PathBuf {
 146    resolve_worktree_directory(working_directory, worktree_directory_setting).join(branch)
 147}
 148
 149/// Commit data needed for the git graph visualization.
 150#[derive(Debug, Clone)]
 151pub struct GraphCommitData {
 152    pub sha: Oid,
 153    /// Most commits have a single parent, so we use a SmallVec to avoid allocations.
 154    pub parents: SmallVec<[Oid; 1]>,
 155    pub author_name: SharedString,
 156    pub author_email: SharedString,
 157    pub commit_timestamp: i64,
 158    pub subject: SharedString,
 159}
 160
 161#[derive(Debug)]
 162pub struct InitialGraphCommitData {
 163    pub sha: Oid,
 164    pub parents: SmallVec<[Oid; 1]>,
 165    pub ref_names: Vec<SharedString>,
 166}
 167
 168struct CommitDataRequest {
 169    sha: Oid,
 170    response_tx: oneshot::Sender<Result<GraphCommitData>>,
 171}
 172
 173pub struct CommitDataReader {
 174    request_tx: smol::channel::Sender<CommitDataRequest>,
 175    _task: Task<()>,
 176}
 177
 178impl CommitDataReader {
 179    pub async fn read(&self, sha: Oid) -> Result<GraphCommitData> {
 180        let (response_tx, response_rx) = oneshot::channel();
 181        self.request_tx
 182            .send(CommitDataRequest { sha, response_tx })
 183            .await
 184            .map_err(|_| anyhow!("commit data reader task closed"))?;
 185        response_rx
 186            .await
 187            .map_err(|_| anyhow!("commit data reader task dropped response"))?
 188    }
 189}
 190
 191fn parse_cat_file_commit(sha: Oid, content: &str) -> Option<GraphCommitData> {
 192    let mut parents = SmallVec::new();
 193    let mut author_name = SharedString::default();
 194    let mut author_email = SharedString::default();
 195    let mut commit_timestamp = 0i64;
 196    let mut in_headers = true;
 197    let mut subject = None;
 198
 199    for line in content.lines() {
 200        if in_headers {
 201            if line.is_empty() {
 202                in_headers = false;
 203                continue;
 204            }
 205
 206            if let Some(parent_sha) = line.strip_prefix("parent ") {
 207                if let Ok(oid) = Oid::from_str(parent_sha.trim()) {
 208                    parents.push(oid);
 209                }
 210            } else if let Some(author_line) = line.strip_prefix("author ") {
 211                if let Some((name_email, _timestamp_tz)) = author_line.rsplit_once(' ') {
 212                    if let Some((name_email, timestamp_str)) = name_email.rsplit_once(' ') {
 213                        if let Ok(ts) = timestamp_str.parse::<i64>() {
 214                            commit_timestamp = ts;
 215                        }
 216                        if let Some((name, email)) = name_email.rsplit_once(" <") {
 217                            author_name = SharedString::from(name.to_string());
 218                            author_email =
 219                                SharedString::from(email.trim_end_matches('>').to_string());
 220                        }
 221                    }
 222                }
 223            }
 224        } else if subject.is_none() {
 225            subject = Some(SharedString::from(line.to_string()));
 226        }
 227    }
 228
 229    Some(GraphCommitData {
 230        sha,
 231        parents,
 232        author_name,
 233        author_email,
 234        commit_timestamp,
 235        subject: subject.unwrap_or_default(),
 236    })
 237}
 238
 239#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 240pub struct Branch {
 241    pub is_head: bool,
 242    pub ref_name: SharedString,
 243    pub upstream: Option<Upstream>,
 244    pub most_recent_commit: Option<CommitSummary>,
 245}
 246
 247impl Branch {
 248    pub fn name(&self) -> &str {
 249        self.ref_name
 250            .as_ref()
 251            .strip_prefix("refs/heads/")
 252            .or_else(|| self.ref_name.as_ref().strip_prefix("refs/remotes/"))
 253            .unwrap_or(self.ref_name.as_ref())
 254    }
 255
 256    pub fn is_remote(&self) -> bool {
 257        self.ref_name.starts_with("refs/remotes/")
 258    }
 259
 260    pub fn remote_name(&self) -> Option<&str> {
 261        self.ref_name
 262            .strip_prefix("refs/remotes/")
 263            .and_then(|stripped| stripped.split("/").next())
 264    }
 265
 266    pub fn tracking_status(&self) -> Option<UpstreamTrackingStatus> {
 267        self.upstream
 268            .as_ref()
 269            .and_then(|upstream| upstream.tracking.status())
 270    }
 271
 272    pub fn priority_key(&self) -> (bool, Option<i64>) {
 273        (
 274            self.is_head,
 275            self.most_recent_commit
 276                .as_ref()
 277                .map(|commit| commit.commit_timestamp),
 278        )
 279    }
 280}
 281
 282#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 283pub struct Worktree {
 284    pub path: PathBuf,
 285    pub ref_name: SharedString,
 286    pub sha: SharedString,
 287}
 288
 289impl Worktree {
 290    pub fn branch(&self) -> &str {
 291        self.ref_name
 292            .as_ref()
 293            .strip_prefix("refs/heads/")
 294            .or_else(|| self.ref_name.as_ref().strip_prefix("refs/remotes/"))
 295            .unwrap_or(self.ref_name.as_ref())
 296    }
 297}
 298
 299pub fn parse_worktrees_from_str<T: AsRef<str>>(raw_worktrees: T) -> Vec<Worktree> {
 300    let mut worktrees = Vec::new();
 301    let normalized = raw_worktrees.as_ref().replace("\r\n", "\n");
 302    let entries = normalized.split("\n\n");
 303    for entry in entries {
 304        let mut path = None;
 305        let mut sha = None;
 306        let mut ref_name = None;
 307
 308        for line in entry.lines() {
 309            let line = line.trim();
 310            if line.is_empty() {
 311                continue;
 312            }
 313            if let Some(rest) = line.strip_prefix("worktree ") {
 314                path = Some(rest.to_string());
 315            } else if let Some(rest) = line.strip_prefix("HEAD ") {
 316                sha = Some(rest.to_string());
 317            } else if let Some(rest) = line.strip_prefix("branch ") {
 318                ref_name = Some(rest.to_string());
 319            }
 320            // Ignore other lines: detached, bare, locked, prunable, etc.
 321        }
 322
 323        if let (Some(path), Some(sha), Some(ref_name)) = (path, sha, ref_name) {
 324            worktrees.push(Worktree {
 325                path: PathBuf::from(path),
 326                ref_name: ref_name.into(),
 327                sha: sha.into(),
 328            })
 329        }
 330    }
 331
 332    worktrees
 333}
 334
 335#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 336pub struct Upstream {
 337    pub ref_name: SharedString,
 338    pub tracking: UpstreamTracking,
 339}
 340
 341impl Upstream {
 342    pub fn is_remote(&self) -> bool {
 343        self.remote_name().is_some()
 344    }
 345
 346    pub fn remote_name(&self) -> Option<&str> {
 347        self.ref_name
 348            .strip_prefix("refs/remotes/")
 349            .and_then(|stripped| stripped.split("/").next())
 350    }
 351
 352    pub fn stripped_ref_name(&self) -> Option<&str> {
 353        self.ref_name.strip_prefix("refs/remotes/")
 354    }
 355
 356    pub fn branch_name(&self) -> Option<&str> {
 357        self.ref_name
 358            .strip_prefix("refs/remotes/")
 359            .and_then(|stripped| stripped.split_once('/').map(|(_, name)| name))
 360    }
 361}
 362
 363#[derive(Clone, Copy, Default)]
 364pub struct CommitOptions {
 365    pub amend: bool,
 366    pub signoff: bool,
 367}
 368
 369#[derive(Clone, Copy, Debug, Hash, PartialEq, Eq)]
 370pub enum UpstreamTracking {
 371    /// Remote ref not present in local repository.
 372    Gone,
 373    /// Remote ref present in local repository (fetched from remote).
 374    Tracked(UpstreamTrackingStatus),
 375}
 376
 377impl From<UpstreamTrackingStatus> for UpstreamTracking {
 378    fn from(status: UpstreamTrackingStatus) -> Self {
 379        UpstreamTracking::Tracked(status)
 380    }
 381}
 382
 383impl UpstreamTracking {
 384    pub fn is_gone(&self) -> bool {
 385        matches!(self, UpstreamTracking::Gone)
 386    }
 387
 388    pub fn status(&self) -> Option<UpstreamTrackingStatus> {
 389        match self {
 390            UpstreamTracking::Gone => None,
 391            UpstreamTracking::Tracked(status) => Some(*status),
 392        }
 393    }
 394}
 395
 396#[derive(Debug, Clone)]
 397pub struct RemoteCommandOutput {
 398    pub stdout: String,
 399    pub stderr: String,
 400}
 401
 402impl RemoteCommandOutput {
 403    pub fn is_empty(&self) -> bool {
 404        self.stdout.is_empty() && self.stderr.is_empty()
 405    }
 406}
 407
 408#[derive(Clone, Copy, Debug, Hash, PartialEq, Eq)]
 409pub struct UpstreamTrackingStatus {
 410    pub ahead: u32,
 411    pub behind: u32,
 412}
 413
 414#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 415pub struct CommitSummary {
 416    pub sha: SharedString,
 417    pub subject: SharedString,
 418    /// This is a unix timestamp
 419    pub commit_timestamp: i64,
 420    pub author_name: SharedString,
 421    pub has_parent: bool,
 422}
 423
 424#[derive(Clone, Debug, Default, Hash, PartialEq, Eq)]
 425pub struct CommitDetails {
 426    pub sha: SharedString,
 427    pub message: SharedString,
 428    pub commit_timestamp: i64,
 429    pub author_email: SharedString,
 430    pub author_name: SharedString,
 431}
 432
 433#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 434pub struct FileHistoryEntry {
 435    pub sha: SharedString,
 436    pub subject: SharedString,
 437    pub message: SharedString,
 438    pub commit_timestamp: i64,
 439    pub author_name: SharedString,
 440    pub author_email: SharedString,
 441}
 442
 443#[derive(Debug, Clone)]
 444pub struct FileHistory {
 445    pub entries: Vec<FileHistoryEntry>,
 446    pub path: RepoPath,
 447}
 448
 449#[derive(Debug)]
 450pub struct CommitDiff {
 451    pub files: Vec<CommitFile>,
 452}
 453
 454#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
 455pub enum CommitFileStatus {
 456    Added,
 457    Modified,
 458    Deleted,
 459}
 460
 461#[derive(Debug)]
 462pub struct CommitFile {
 463    pub path: RepoPath,
 464    pub old_text: Option<String>,
 465    pub new_text: Option<String>,
 466    pub is_binary: bool,
 467}
 468
 469impl CommitFile {
 470    pub fn status(&self) -> CommitFileStatus {
 471        match (&self.old_text, &self.new_text) {
 472            (None, Some(_)) => CommitFileStatus::Added,
 473            (Some(_), None) => CommitFileStatus::Deleted,
 474            _ => CommitFileStatus::Modified,
 475        }
 476    }
 477}
 478
 479impl CommitDetails {
 480    pub fn short_sha(&self) -> SharedString {
 481        self.sha[..SHORT_SHA_LENGTH].to_string().into()
 482    }
 483}
 484
 485/// Detects if content is binary by checking for NUL bytes in the first 8000 bytes.
 486/// This matches git's binary detection heuristic.
 487pub fn is_binary_content(content: &[u8]) -> bool {
 488    let check_len = content.len().min(8000);
 489    content[..check_len].contains(&0)
 490}
 491
 492#[derive(Debug, Clone, Hash, PartialEq, Eq)]
 493pub struct Remote {
 494    pub name: SharedString,
 495}
 496
 497pub enum ResetMode {
 498    /// Reset the branch pointer, leave index and worktree unchanged (this will make it look like things that were
 499    /// committed are now staged).
 500    Soft,
 501    /// Reset the branch pointer and index, leave worktree unchanged (this makes it look as though things that were
 502    /// committed are now unstaged).
 503    Mixed,
 504}
 505
 506#[derive(Debug, Clone, Hash, PartialEq, Eq)]
 507pub enum FetchOptions {
 508    All,
 509    Remote(Remote),
 510}
 511
 512impl FetchOptions {
 513    pub fn to_proto(&self) -> Option<String> {
 514        match self {
 515            FetchOptions::All => None,
 516            FetchOptions::Remote(remote) => Some(remote.clone().name.into()),
 517        }
 518    }
 519
 520    pub fn from_proto(remote_name: Option<String>) -> Self {
 521        match remote_name {
 522            Some(name) => FetchOptions::Remote(Remote { name: name.into() }),
 523            None => FetchOptions::All,
 524        }
 525    }
 526
 527    pub fn name(&self) -> SharedString {
 528        match self {
 529            Self::All => "Fetch all remotes".into(),
 530            Self::Remote(remote) => remote.name.clone(),
 531        }
 532    }
 533}
 534
 535impl std::fmt::Display for FetchOptions {
 536    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
 537        match self {
 538            FetchOptions::All => write!(f, "--all"),
 539            FetchOptions::Remote(remote) => write!(f, "{}", remote.name),
 540        }
 541    }
 542}
 543
 544/// Modifies .git/info/exclude temporarily
 545pub struct GitExcludeOverride {
 546    git_exclude_path: PathBuf,
 547    original_excludes: Option<String>,
 548    added_excludes: Option<String>,
 549}
 550
 551impl GitExcludeOverride {
 552    const START_BLOCK_MARKER: &str = "\n\n#  ====== Auto-added by Zed: =======\n";
 553    const END_BLOCK_MARKER: &str = "\n#  ====== End of auto-added by Zed =======\n";
 554
 555    pub async fn new(git_exclude_path: PathBuf) -> Result<Self> {
 556        let original_excludes =
 557            smol::fs::read_to_string(&git_exclude_path)
 558                .await
 559                .ok()
 560                .map(|content| {
 561                    // Auto-generated lines are normally cleaned up in
 562                    // `restore_original()` or `drop()`, but may stuck in rare cases.
 563                    // Make sure to remove them.
 564                    Self::remove_auto_generated_block(&content)
 565                });
 566
 567        Ok(GitExcludeOverride {
 568            git_exclude_path,
 569            original_excludes,
 570            added_excludes: None,
 571        })
 572    }
 573
 574    pub async fn add_excludes(&mut self, excludes: &str) -> Result<()> {
 575        self.added_excludes = Some(if let Some(ref already_added) = self.added_excludes {
 576            format!("{already_added}\n{excludes}")
 577        } else {
 578            excludes.to_string()
 579        });
 580
 581        let mut content = self.original_excludes.clone().unwrap_or_default();
 582
 583        content.push_str(Self::START_BLOCK_MARKER);
 584        content.push_str(self.added_excludes.as_ref().unwrap());
 585        content.push_str(Self::END_BLOCK_MARKER);
 586
 587        smol::fs::write(&self.git_exclude_path, content).await?;
 588        Ok(())
 589    }
 590
 591    pub async fn restore_original(&mut self) -> Result<()> {
 592        if let Some(ref original) = self.original_excludes {
 593            smol::fs::write(&self.git_exclude_path, original).await?;
 594        } else if self.git_exclude_path.exists() {
 595            smol::fs::remove_file(&self.git_exclude_path).await?;
 596        }
 597
 598        self.added_excludes = None;
 599
 600        Ok(())
 601    }
 602
 603    fn remove_auto_generated_block(content: &str) -> String {
 604        let start_marker = Self::START_BLOCK_MARKER;
 605        let end_marker = Self::END_BLOCK_MARKER;
 606        let mut content = content.to_string();
 607
 608        let start_index = content.find(start_marker);
 609        let end_index = content.rfind(end_marker);
 610
 611        if let (Some(start), Some(end)) = (start_index, end_index) {
 612            if end > start {
 613                content.replace_range(start..end + end_marker.len(), "");
 614            }
 615        }
 616
 617        // Older versions of Zed didn't have end-of-block markers,
 618        // so it's impossible to determine auto-generated lines.
 619        // Conservatively remove the standard list of excludes
 620        let standard_excludes = format!(
 621            "{}{}",
 622            Self::START_BLOCK_MARKER,
 623            include_str!("./checkpoint.gitignore")
 624        );
 625        content = content.replace(&standard_excludes, "");
 626
 627        content
 628    }
 629}
 630
 631impl Drop for GitExcludeOverride {
 632    fn drop(&mut self) {
 633        if self.added_excludes.is_some() {
 634            let git_exclude_path = self.git_exclude_path.clone();
 635            let original_excludes = self.original_excludes.clone();
 636            smol::spawn(async move {
 637                if let Some(original) = original_excludes {
 638                    smol::fs::write(&git_exclude_path, original).await
 639                } else {
 640                    smol::fs::remove_file(&git_exclude_path).await
 641                }
 642            })
 643            .detach();
 644        }
 645    }
 646}
 647
 648#[derive(Clone, Debug, Default, PartialEq, Eq, Hash, Copy)]
 649pub enum LogOrder {
 650    #[default]
 651    DateOrder,
 652    TopoOrder,
 653    AuthorDateOrder,
 654    ReverseChronological,
 655}
 656
 657impl LogOrder {
 658    pub fn as_arg(&self) -> &'static str {
 659        match self {
 660            LogOrder::DateOrder => "--date-order",
 661            LogOrder::TopoOrder => "--topo-order",
 662            LogOrder::AuthorDateOrder => "--author-date-order",
 663            LogOrder::ReverseChronological => "--reverse",
 664        }
 665    }
 666}
 667
 668#[derive(Clone, Debug, Default, PartialEq, Eq, Hash)]
 669pub enum LogSource {
 670    #[default]
 671    All,
 672    Branch(SharedString),
 673    Sha(Oid),
 674}
 675
 676impl LogSource {
 677    fn get_arg(&self) -> Result<&str> {
 678        match self {
 679            LogSource::All => Ok("--all"),
 680            LogSource::Branch(branch) => Ok(branch.as_str()),
 681            LogSource::Sha(oid) => {
 682                str::from_utf8(oid.as_bytes()).context("Failed to build str from sha")
 683            }
 684        }
 685    }
 686}
 687
 688pub trait GitRepository: Send + Sync {
 689    fn reload_index(&self);
 690
 691    /// Returns the contents of an entry in the repository's index, or None if there is no entry for the given path.
 692    ///
 693    /// Also returns `None` for symlinks.
 694    fn load_index_text(&self, path: RepoPath) -> BoxFuture<'_, Option<String>>;
 695
 696    /// Returns the contents of an entry in the repository's HEAD, or None if HEAD does not exist or has no entry for the given path.
 697    ///
 698    /// Also returns `None` for symlinks.
 699    fn load_committed_text(&self, path: RepoPath) -> BoxFuture<'_, Option<String>>;
 700    fn load_blob_content(&self, oid: Oid) -> BoxFuture<'_, Result<String>>;
 701
 702    fn set_index_text(
 703        &self,
 704        path: RepoPath,
 705        content: Option<String>,
 706        env: Arc<HashMap<String, String>>,
 707        is_executable: bool,
 708    ) -> BoxFuture<'_, anyhow::Result<()>>;
 709
 710    /// Returns the URL of the remote with the given name.
 711    fn remote_url(&self, name: &str) -> BoxFuture<'_, Option<String>>;
 712
 713    /// Resolve a list of refs to SHAs.
 714    fn revparse_batch(&self, revs: Vec<String>) -> BoxFuture<'_, Result<Vec<Option<String>>>>;
 715
 716    fn head_sha(&self) -> BoxFuture<'_, Option<String>> {
 717        async move {
 718            self.revparse_batch(vec!["HEAD".into()])
 719                .await
 720                .unwrap_or_default()
 721                .into_iter()
 722                .next()
 723                .flatten()
 724        }
 725        .boxed()
 726    }
 727
 728    fn merge_message(&self) -> BoxFuture<'_, Option<String>>;
 729
 730    fn status(&self, path_prefixes: &[RepoPath]) -> Task<Result<GitStatus>>;
 731    fn diff_tree(&self, request: DiffTreeType) -> BoxFuture<'_, Result<TreeDiff>>;
 732
 733    fn stash_entries(&self) -> BoxFuture<'_, Result<GitStash>>;
 734
 735    fn branches(&self) -> BoxFuture<'_, Result<Vec<Branch>>>;
 736
 737    fn change_branch(&self, name: String) -> BoxFuture<'_, Result<()>>;
 738    fn create_branch(&self, name: String, base_branch: Option<String>)
 739    -> BoxFuture<'_, Result<()>>;
 740    fn rename_branch(&self, branch: String, new_name: String) -> BoxFuture<'_, Result<()>>;
 741
 742    fn delete_branch(&self, name: String) -> BoxFuture<'_, Result<()>>;
 743
 744    fn worktrees(&self) -> BoxFuture<'_, Result<Vec<Worktree>>>;
 745
 746    fn create_worktree(
 747        &self,
 748        name: String,
 749        directory: PathBuf,
 750        from_commit: Option<String>,
 751    ) -> BoxFuture<'_, Result<()>>;
 752
 753    fn remove_worktree(&self, path: PathBuf, force: bool) -> BoxFuture<'_, Result<()>>;
 754
 755    fn rename_worktree(&self, old_path: PathBuf, new_path: PathBuf) -> BoxFuture<'_, Result<()>>;
 756
 757    fn reset(
 758        &self,
 759        commit: String,
 760        mode: ResetMode,
 761        env: Arc<HashMap<String, String>>,
 762    ) -> BoxFuture<'_, Result<()>>;
 763
 764    fn checkout_files(
 765        &self,
 766        commit: String,
 767        paths: Vec<RepoPath>,
 768        env: Arc<HashMap<String, String>>,
 769    ) -> BoxFuture<'_, Result<()>>;
 770
 771    fn show(&self, commit: String) -> BoxFuture<'_, Result<CommitDetails>>;
 772
 773    fn load_commit(&self, commit: String, cx: AsyncApp) -> BoxFuture<'_, Result<CommitDiff>>;
 774    fn blame(
 775        &self,
 776        path: RepoPath,
 777        content: Rope,
 778        line_ending: LineEnding,
 779    ) -> BoxFuture<'_, Result<crate::blame::Blame>>;
 780    fn file_history(&self, path: RepoPath) -> BoxFuture<'_, Result<FileHistory>>;
 781    fn file_history_paginated(
 782        &self,
 783        path: RepoPath,
 784        skip: usize,
 785        limit: Option<usize>,
 786    ) -> BoxFuture<'_, Result<FileHistory>>;
 787
 788    /// Returns the absolute path to the repository. For worktrees, this will be the path to the
 789    /// worktree's gitdir within the main repository (typically `.git/worktrees/<name>`).
 790    fn path(&self) -> PathBuf;
 791
 792    fn main_repository_path(&self) -> PathBuf;
 793
 794    /// Updates the index to match the worktree at the given paths.
 795    ///
 796    /// If any of the paths have been deleted from the worktree, they will be removed from the index if found there.
 797    fn stage_paths(
 798        &self,
 799        paths: Vec<RepoPath>,
 800        env: Arc<HashMap<String, String>>,
 801    ) -> BoxFuture<'_, Result<()>>;
 802    /// Updates the index to match HEAD at the given paths.
 803    ///
 804    /// If any of the paths were previously staged but do not exist in HEAD, they will be removed from the index.
 805    fn unstage_paths(
 806        &self,
 807        paths: Vec<RepoPath>,
 808        env: Arc<HashMap<String, String>>,
 809    ) -> BoxFuture<'_, Result<()>>;
 810
 811    fn run_hook(
 812        &self,
 813        hook: RunHook,
 814        env: Arc<HashMap<String, String>>,
 815    ) -> BoxFuture<'_, Result<()>>;
 816
 817    fn commit(
 818        &self,
 819        message: SharedString,
 820        name_and_email: Option<(SharedString, SharedString)>,
 821        options: CommitOptions,
 822        askpass: AskPassDelegate,
 823        env: Arc<HashMap<String, String>>,
 824    ) -> BoxFuture<'_, Result<()>>;
 825
 826    fn stash_paths(
 827        &self,
 828        paths: Vec<RepoPath>,
 829        env: Arc<HashMap<String, String>>,
 830    ) -> BoxFuture<'_, Result<()>>;
 831
 832    fn stash_pop(
 833        &self,
 834        index: Option<usize>,
 835        env: Arc<HashMap<String, String>>,
 836    ) -> BoxFuture<'_, Result<()>>;
 837
 838    fn stash_apply(
 839        &self,
 840        index: Option<usize>,
 841        env: Arc<HashMap<String, String>>,
 842    ) -> BoxFuture<'_, Result<()>>;
 843
 844    fn stash_drop(
 845        &self,
 846        index: Option<usize>,
 847        env: Arc<HashMap<String, String>>,
 848    ) -> BoxFuture<'_, Result<()>>;
 849
 850    fn push(
 851        &self,
 852        branch_name: String,
 853        remote_branch_name: String,
 854        upstream_name: String,
 855        options: Option<PushOptions>,
 856        askpass: AskPassDelegate,
 857        env: Arc<HashMap<String, String>>,
 858        // This method takes an AsyncApp to ensure it's invoked on the main thread,
 859        // otherwise git-credentials-manager won't work.
 860        cx: AsyncApp,
 861    ) -> BoxFuture<'_, Result<RemoteCommandOutput>>;
 862
 863    fn pull(
 864        &self,
 865        branch_name: Option<String>,
 866        upstream_name: String,
 867        rebase: bool,
 868        askpass: AskPassDelegate,
 869        env: Arc<HashMap<String, String>>,
 870        // This method takes an AsyncApp to ensure it's invoked on the main thread,
 871        // otherwise git-credentials-manager won't work.
 872        cx: AsyncApp,
 873    ) -> BoxFuture<'_, Result<RemoteCommandOutput>>;
 874
 875    fn fetch(
 876        &self,
 877        fetch_options: FetchOptions,
 878        askpass: AskPassDelegate,
 879        env: Arc<HashMap<String, String>>,
 880        // This method takes an AsyncApp to ensure it's invoked on the main thread,
 881        // otherwise git-credentials-manager won't work.
 882        cx: AsyncApp,
 883    ) -> BoxFuture<'_, Result<RemoteCommandOutput>>;
 884
 885    fn get_push_remote(&self, branch: String) -> BoxFuture<'_, Result<Option<Remote>>>;
 886
 887    fn get_branch_remote(&self, branch: String) -> BoxFuture<'_, Result<Option<Remote>>>;
 888
 889    fn get_all_remotes(&self) -> BoxFuture<'_, Result<Vec<Remote>>>;
 890
 891    fn remove_remote(&self, name: String) -> BoxFuture<'_, Result<()>>;
 892
 893    fn create_remote(&self, name: String, url: String) -> BoxFuture<'_, Result<()>>;
 894
 895    /// returns a list of remote branches that contain HEAD
 896    fn check_for_pushed_commit(&self) -> BoxFuture<'_, Result<Vec<SharedString>>>;
 897
 898    /// Run git diff
 899    fn diff(&self, diff: DiffType) -> BoxFuture<'_, Result<String>>;
 900
 901    fn diff_stat(
 902        &self,
 903        diff: DiffType,
 904    ) -> BoxFuture<'_, Result<HashMap<RepoPath, crate::status::DiffStat>>>;
 905
 906    /// Creates a checkpoint for the repository.
 907    fn checkpoint(&self) -> BoxFuture<'static, Result<GitRepositoryCheckpoint>>;
 908
 909    /// Resets to a previously-created checkpoint.
 910    fn restore_checkpoint(&self, checkpoint: GitRepositoryCheckpoint) -> BoxFuture<'_, Result<()>>;
 911
 912    /// Compares two checkpoints, returning true if they are equal
 913    fn compare_checkpoints(
 914        &self,
 915        left: GitRepositoryCheckpoint,
 916        right: GitRepositoryCheckpoint,
 917    ) -> BoxFuture<'_, Result<bool>>;
 918
 919    /// Computes a diff between two checkpoints.
 920    fn diff_checkpoints(
 921        &self,
 922        base_checkpoint: GitRepositoryCheckpoint,
 923        target_checkpoint: GitRepositoryCheckpoint,
 924    ) -> BoxFuture<'_, Result<String>>;
 925
 926    fn default_branch(
 927        &self,
 928        include_remote_name: bool,
 929    ) -> BoxFuture<'_, Result<Option<SharedString>>>;
 930
 931    /// Runs `git rev-list --parents` to get the commit graph structure.
 932    /// Returns commit SHAs and their parent SHAs for building the graph visualization.
 933    fn initial_graph_data(
 934        &self,
 935        log_source: LogSource,
 936        log_order: LogOrder,
 937        request_tx: Sender<Vec<Arc<InitialGraphCommitData>>>,
 938    ) -> BoxFuture<'_, Result<()>>;
 939
 940    fn commit_data_reader(&self) -> Result<CommitDataReader>;
 941}
 942
 943pub enum DiffType {
 944    HeadToIndex,
 945    HeadToWorktree,
 946    MergeBase { base_ref: SharedString },
 947}
 948
 949#[derive(Debug, Clone, Copy, PartialEq, Eq, Deserialize, JsonSchema)]
 950pub enum PushOptions {
 951    SetUpstream,
 952    Force,
 953}
 954
 955impl std::fmt::Debug for dyn GitRepository {
 956    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
 957        f.debug_struct("dyn GitRepository<...>").finish()
 958    }
 959}
 960
 961pub struct RealGitRepository {
 962    pub repository: Arc<Mutex<git2::Repository>>,
 963    pub system_git_binary_path: Option<PathBuf>,
 964    pub any_git_binary_path: PathBuf,
 965    any_git_binary_help_output: Arc<Mutex<Option<SharedString>>>,
 966    executor: BackgroundExecutor,
 967}
 968
 969impl RealGitRepository {
 970    pub fn new(
 971        dotgit_path: &Path,
 972        bundled_git_binary_path: Option<PathBuf>,
 973        system_git_binary_path: Option<PathBuf>,
 974        executor: BackgroundExecutor,
 975    ) -> Option<Self> {
 976        let any_git_binary_path = system_git_binary_path.clone().or(bundled_git_binary_path)?;
 977        let workdir_root = dotgit_path.parent()?;
 978        let repository = git2::Repository::open(workdir_root).log_err()?;
 979        Some(Self {
 980            repository: Arc::new(Mutex::new(repository)),
 981            system_git_binary_path,
 982            any_git_binary_path,
 983            executor,
 984            any_git_binary_help_output: Arc::new(Mutex::new(None)),
 985        })
 986    }
 987
 988    fn working_directory(&self) -> Result<PathBuf> {
 989        self.repository
 990            .lock()
 991            .workdir()
 992            .context("failed to read git work directory")
 993            .map(Path::to_path_buf)
 994    }
 995
 996    async fn any_git_binary_help_output(&self) -> SharedString {
 997        if let Some(output) = self.any_git_binary_help_output.lock().clone() {
 998            return output;
 999        }
1000        let git_binary_path = self.any_git_binary_path.clone();
1001        let executor = self.executor.clone();
1002        let working_directory = self.working_directory();
1003        let output: SharedString = self
1004            .executor
1005            .spawn(async move {
1006                GitBinary::new(git_binary_path, working_directory?, executor)
1007                    .run(["help", "-a"])
1008                    .await
1009            })
1010            .await
1011            .unwrap_or_default()
1012            .into();
1013        *self.any_git_binary_help_output.lock() = Some(output.clone());
1014        output
1015    }
1016}
1017
1018#[derive(Clone, Debug)]
1019pub struct GitRepositoryCheckpoint {
1020    pub commit_sha: Oid,
1021}
1022
1023#[derive(Debug)]
1024pub struct GitCommitter {
1025    pub name: Option<String>,
1026    pub email: Option<String>,
1027}
1028
1029pub async fn get_git_committer(cx: &AsyncApp) -> GitCommitter {
1030    if cfg!(any(feature = "test-support", test)) {
1031        return GitCommitter {
1032            name: None,
1033            email: None,
1034        };
1035    }
1036
1037    let git_binary_path =
1038        if cfg!(target_os = "macos") && option_env!("ZED_BUNDLE").as_deref() == Some("true") {
1039            cx.update(|cx| {
1040                cx.path_for_auxiliary_executable("git")
1041                    .context("could not find git binary path")
1042                    .log_err()
1043            })
1044        } else {
1045            None
1046        };
1047
1048    let git = GitBinary::new(
1049        git_binary_path.unwrap_or(PathBuf::from("git")),
1050        paths::home_dir().clone(),
1051        cx.background_executor().clone(),
1052    );
1053
1054    cx.background_spawn(async move {
1055        let name = git.run(["config", "--global", "user.name"]).await.log_err();
1056        let email = git
1057            .run(["config", "--global", "user.email"])
1058            .await
1059            .log_err();
1060        GitCommitter { name, email }
1061    })
1062    .await
1063}
1064
1065impl GitRepository for RealGitRepository {
1066    fn reload_index(&self) {
1067        if let Ok(mut index) = self.repository.lock().index() {
1068            _ = index.read(false);
1069        }
1070    }
1071
1072    fn path(&self) -> PathBuf {
1073        let repo = self.repository.lock();
1074        repo.path().into()
1075    }
1076
1077    fn main_repository_path(&self) -> PathBuf {
1078        let repo = self.repository.lock();
1079        repo.commondir().into()
1080    }
1081
1082    fn show(&self, commit: String) -> BoxFuture<'_, Result<CommitDetails>> {
1083        let git_binary_path = self.any_git_binary_path.clone();
1084        let working_directory = self.working_directory();
1085        self.executor
1086            .spawn(async move {
1087                let working_directory = working_directory?;
1088                let output = new_command(git_binary_path)
1089                    .current_dir(&working_directory)
1090                    .args([
1091                        "--no-optional-locks",
1092                        "show",
1093                        "--no-patch",
1094                        "--format=%H%x00%B%x00%at%x00%ae%x00%an%x00",
1095                        &commit,
1096                    ])
1097                    .output()
1098                    .await?;
1099                let output = std::str::from_utf8(&output.stdout)?;
1100                let fields = output.split('\0').collect::<Vec<_>>();
1101                if fields.len() != 6 {
1102                    bail!("unexpected git-show output for {commit:?}: {output:?}")
1103                }
1104                let sha = fields[0].to_string().into();
1105                let message = fields[1].to_string().into();
1106                let commit_timestamp = fields[2].parse()?;
1107                let author_email = fields[3].to_string().into();
1108                let author_name = fields[4].to_string().into();
1109                Ok(CommitDetails {
1110                    sha,
1111                    message,
1112                    commit_timestamp,
1113                    author_email,
1114                    author_name,
1115                })
1116            })
1117            .boxed()
1118    }
1119
1120    fn load_commit(&self, commit: String, cx: AsyncApp) -> BoxFuture<'_, Result<CommitDiff>> {
1121        let Some(working_directory) = self.repository.lock().workdir().map(ToOwned::to_owned)
1122        else {
1123            return future::ready(Err(anyhow!("no working directory"))).boxed();
1124        };
1125        let git_binary_path = self.any_git_binary_path.clone();
1126        cx.background_spawn(async move {
1127            let show_output = util::command::new_command(&git_binary_path)
1128                .current_dir(&working_directory)
1129                .args([
1130                    "--no-optional-locks",
1131                    "show",
1132                    "--format=",
1133                    "-z",
1134                    "--no-renames",
1135                    "--name-status",
1136                    "--first-parent",
1137                ])
1138                .arg(&commit)
1139                .stdin(Stdio::null())
1140                .stdout(Stdio::piped())
1141                .stderr(Stdio::piped())
1142                .output()
1143                .await
1144                .context("starting git show process")?;
1145
1146            let show_stdout = String::from_utf8_lossy(&show_output.stdout);
1147            let changes = parse_git_diff_name_status(&show_stdout);
1148            let parent_sha = format!("{}^", commit);
1149
1150            let mut cat_file_process = util::command::new_command(&git_binary_path)
1151                .current_dir(&working_directory)
1152                .args(["--no-optional-locks", "cat-file", "--batch=%(objectsize)"])
1153                .stdin(Stdio::piped())
1154                .stdout(Stdio::piped())
1155                .stderr(Stdio::piped())
1156                .spawn()
1157                .context("starting git cat-file process")?;
1158
1159            let mut files = Vec::<CommitFile>::new();
1160            let mut stdin = BufWriter::with_capacity(512, cat_file_process.stdin.take().unwrap());
1161            let mut stdout = BufReader::new(cat_file_process.stdout.take().unwrap());
1162            let mut info_line = String::new();
1163            let mut newline = [b'\0'];
1164            for (path, status_code) in changes {
1165                // git-show outputs `/`-delimited paths even on Windows.
1166                let Some(rel_path) = RelPath::unix(path).log_err() else {
1167                    continue;
1168                };
1169
1170                match status_code {
1171                    StatusCode::Modified => {
1172                        stdin.write_all(commit.as_bytes()).await?;
1173                        stdin.write_all(b":").await?;
1174                        stdin.write_all(path.as_bytes()).await?;
1175                        stdin.write_all(b"\n").await?;
1176                        stdin.write_all(parent_sha.as_bytes()).await?;
1177                        stdin.write_all(b":").await?;
1178                        stdin.write_all(path.as_bytes()).await?;
1179                        stdin.write_all(b"\n").await?;
1180                    }
1181                    StatusCode::Added => {
1182                        stdin.write_all(commit.as_bytes()).await?;
1183                        stdin.write_all(b":").await?;
1184                        stdin.write_all(path.as_bytes()).await?;
1185                        stdin.write_all(b"\n").await?;
1186                    }
1187                    StatusCode::Deleted => {
1188                        stdin.write_all(parent_sha.as_bytes()).await?;
1189                        stdin.write_all(b":").await?;
1190                        stdin.write_all(path.as_bytes()).await?;
1191                        stdin.write_all(b"\n").await?;
1192                    }
1193                    _ => continue,
1194                }
1195                stdin.flush().await?;
1196
1197                info_line.clear();
1198                stdout.read_line(&mut info_line).await?;
1199
1200                let len = info_line.trim_end().parse().with_context(|| {
1201                    format!("invalid object size output from cat-file {info_line}")
1202                })?;
1203                let mut text_bytes = vec![0; len];
1204                stdout.read_exact(&mut text_bytes).await?;
1205                stdout.read_exact(&mut newline).await?;
1206
1207                let mut old_text = None;
1208                let mut new_text = None;
1209                let mut is_binary = is_binary_content(&text_bytes);
1210                let text = if is_binary {
1211                    String::new()
1212                } else {
1213                    String::from_utf8_lossy(&text_bytes).to_string()
1214                };
1215
1216                match status_code {
1217                    StatusCode::Modified => {
1218                        info_line.clear();
1219                        stdout.read_line(&mut info_line).await?;
1220                        let len = info_line.trim_end().parse().with_context(|| {
1221                            format!("invalid object size output from cat-file {}", info_line)
1222                        })?;
1223                        let mut parent_bytes = vec![0; len];
1224                        stdout.read_exact(&mut parent_bytes).await?;
1225                        stdout.read_exact(&mut newline).await?;
1226                        is_binary = is_binary || is_binary_content(&parent_bytes);
1227                        if is_binary {
1228                            old_text = Some(String::new());
1229                            new_text = Some(String::new());
1230                        } else {
1231                            old_text = Some(String::from_utf8_lossy(&parent_bytes).to_string());
1232                            new_text = Some(text);
1233                        }
1234                    }
1235                    StatusCode::Added => new_text = Some(text),
1236                    StatusCode::Deleted => old_text = Some(text),
1237                    _ => continue,
1238                }
1239
1240                files.push(CommitFile {
1241                    path: RepoPath(Arc::from(rel_path)),
1242                    old_text,
1243                    new_text,
1244                    is_binary,
1245                })
1246            }
1247
1248            Ok(CommitDiff { files })
1249        })
1250        .boxed()
1251    }
1252
1253    fn reset(
1254        &self,
1255        commit: String,
1256        mode: ResetMode,
1257        env: Arc<HashMap<String, String>>,
1258    ) -> BoxFuture<'_, Result<()>> {
1259        async move {
1260            let working_directory = self.working_directory();
1261
1262            let mode_flag = match mode {
1263                ResetMode::Mixed => "--mixed",
1264                ResetMode::Soft => "--soft",
1265            };
1266
1267            let output = new_command(&self.any_git_binary_path)
1268                .envs(env.iter())
1269                .current_dir(&working_directory?)
1270                .args(["reset", mode_flag, &commit])
1271                .output()
1272                .await?;
1273            anyhow::ensure!(
1274                output.status.success(),
1275                "Failed to reset:\n{}",
1276                String::from_utf8_lossy(&output.stderr),
1277            );
1278            Ok(())
1279        }
1280        .boxed()
1281    }
1282
1283    fn checkout_files(
1284        &self,
1285        commit: String,
1286        paths: Vec<RepoPath>,
1287        env: Arc<HashMap<String, String>>,
1288    ) -> BoxFuture<'_, Result<()>> {
1289        let working_directory = self.working_directory();
1290        let git_binary_path = self.any_git_binary_path.clone();
1291        async move {
1292            if paths.is_empty() {
1293                return Ok(());
1294            }
1295
1296            let output = new_command(&git_binary_path)
1297                .current_dir(&working_directory?)
1298                .envs(env.iter())
1299                .args(["checkout", &commit, "--"])
1300                .args(paths.iter().map(|path| path.as_unix_str()))
1301                .output()
1302                .await?;
1303            anyhow::ensure!(
1304                output.status.success(),
1305                "Failed to checkout files:\n{}",
1306                String::from_utf8_lossy(&output.stderr),
1307            );
1308            Ok(())
1309        }
1310        .boxed()
1311    }
1312
1313    fn load_index_text(&self, path: RepoPath) -> BoxFuture<'_, Option<String>> {
1314        // https://git-scm.com/book/en/v2/Git-Internals-Git-Objects
1315        const GIT_MODE_SYMLINK: u32 = 0o120000;
1316
1317        let repo = self.repository.clone();
1318        self.executor
1319            .spawn(async move {
1320                fn logic(repo: &git2::Repository, path: &RepoPath) -> Result<Option<String>> {
1321                    let mut index = repo.index()?;
1322                    index.read(false)?;
1323
1324                    const STAGE_NORMAL: i32 = 0;
1325                    // git2 unwraps internally on empty paths or `.`
1326                    if path.is_empty() {
1327                        bail!("empty path has no index text");
1328                    }
1329                    let Some(entry) = index.get_path(path.as_std_path(), STAGE_NORMAL) else {
1330                        return Ok(None);
1331                    };
1332                    if entry.mode == GIT_MODE_SYMLINK {
1333                        return Ok(None);
1334                    }
1335
1336                    let content = repo.find_blob(entry.id)?.content().to_owned();
1337                    Ok(String::from_utf8(content).ok())
1338                }
1339
1340                logic(&repo.lock(), &path)
1341                    .context("loading index text")
1342                    .log_err()
1343                    .flatten()
1344            })
1345            .boxed()
1346    }
1347
1348    fn load_committed_text(&self, path: RepoPath) -> BoxFuture<'_, Option<String>> {
1349        let repo = self.repository.clone();
1350        self.executor
1351            .spawn(async move {
1352                fn logic(repo: &git2::Repository, path: &RepoPath) -> Result<Option<String>> {
1353                    let head = repo.head()?.peel_to_tree()?;
1354                    // git2 unwraps internally on empty paths or `.`
1355                    if path.is_empty() {
1356                        return Err(anyhow!("empty path has no committed text"));
1357                    }
1358                    let Some(entry) = head.get_path(path.as_std_path()).ok() else {
1359                        return Ok(None);
1360                    };
1361                    if entry.filemode() == i32::from(git2::FileMode::Link) {
1362                        return Ok(None);
1363                    }
1364                    let content = repo.find_blob(entry.id())?.content().to_owned();
1365                    Ok(String::from_utf8(content).ok())
1366                }
1367
1368                logic(&repo.lock(), &path)
1369                    .context("loading committed text")
1370                    .log_err()
1371                    .flatten()
1372            })
1373            .boxed()
1374    }
1375
1376    fn load_blob_content(&self, oid: Oid) -> BoxFuture<'_, Result<String>> {
1377        let repo = self.repository.clone();
1378        self.executor
1379            .spawn(async move {
1380                let repo = repo.lock();
1381                let content = repo.find_blob(oid.0)?.content().to_owned();
1382                Ok(String::from_utf8(content)?)
1383            })
1384            .boxed()
1385    }
1386
1387    fn set_index_text(
1388        &self,
1389        path: RepoPath,
1390        content: Option<String>,
1391        env: Arc<HashMap<String, String>>,
1392        is_executable: bool,
1393    ) -> BoxFuture<'_, anyhow::Result<()>> {
1394        let working_directory = self.working_directory();
1395        let git_binary_path = self.any_git_binary_path.clone();
1396        self.executor
1397            .spawn(async move {
1398                let working_directory = working_directory?;
1399                let mode = if is_executable { "100755" } else { "100644" };
1400
1401                if let Some(content) = content {
1402                    let mut child = new_command(&git_binary_path)
1403                        .current_dir(&working_directory)
1404                        .envs(env.iter())
1405                        .args(["hash-object", "-w", "--stdin"])
1406                        .stdin(Stdio::piped())
1407                        .stdout(Stdio::piped())
1408                        .spawn()?;
1409                    let mut stdin = child.stdin.take().unwrap();
1410                    stdin.write_all(content.as_bytes()).await?;
1411                    stdin.flush().await?;
1412                    drop(stdin);
1413                    let output = child.output().await?.stdout;
1414                    let sha = str::from_utf8(&output)?.trim();
1415
1416                    log::debug!("indexing SHA: {sha}, path {path:?}");
1417
1418                    let output = new_command(&git_binary_path)
1419                        .current_dir(&working_directory)
1420                        .envs(env.iter())
1421                        .args(["update-index", "--add", "--cacheinfo", mode, sha])
1422                        .arg(path.as_unix_str())
1423                        .output()
1424                        .await?;
1425
1426                    anyhow::ensure!(
1427                        output.status.success(),
1428                        "Failed to stage:\n{}",
1429                        String::from_utf8_lossy(&output.stderr)
1430                    );
1431                } else {
1432                    log::debug!("removing path {path:?} from the index");
1433                    let output = new_command(&git_binary_path)
1434                        .current_dir(&working_directory)
1435                        .envs(env.iter())
1436                        .args(["update-index", "--force-remove"])
1437                        .arg(path.as_unix_str())
1438                        .output()
1439                        .await?;
1440                    anyhow::ensure!(
1441                        output.status.success(),
1442                        "Failed to unstage:\n{}",
1443                        String::from_utf8_lossy(&output.stderr)
1444                    );
1445                }
1446
1447                Ok(())
1448            })
1449            .boxed()
1450    }
1451
1452    fn remote_url(&self, name: &str) -> BoxFuture<'_, Option<String>> {
1453        let repo = self.repository.clone();
1454        let name = name.to_owned();
1455        self.executor
1456            .spawn(async move {
1457                let repo = repo.lock();
1458                let remote = repo.find_remote(&name).ok()?;
1459                remote.url().map(|url| url.to_string())
1460            })
1461            .boxed()
1462    }
1463
1464    fn revparse_batch(&self, revs: Vec<String>) -> BoxFuture<'_, Result<Vec<Option<String>>>> {
1465        let working_directory = self.working_directory();
1466        let git_binary_path = self.any_git_binary_path.clone();
1467        self.executor
1468            .spawn(async move {
1469                let working_directory = working_directory?;
1470                let mut process = new_command(&git_binary_path)
1471                    .current_dir(&working_directory)
1472                    .args([
1473                        "--no-optional-locks",
1474                        "cat-file",
1475                        "--batch-check=%(objectname)",
1476                    ])
1477                    .stdin(Stdio::piped())
1478                    .stdout(Stdio::piped())
1479                    .stderr(Stdio::piped())
1480                    .spawn()?;
1481
1482                let stdin = process
1483                    .stdin
1484                    .take()
1485                    .context("no stdin for git cat-file subprocess")?;
1486                let mut stdin = BufWriter::new(stdin);
1487                for rev in &revs {
1488                    stdin.write_all(rev.as_bytes()).await?;
1489                    stdin.write_all(b"\n").await?;
1490                }
1491                stdin.flush().await?;
1492                drop(stdin);
1493
1494                let output = process.output().await?;
1495                let output = std::str::from_utf8(&output.stdout)?;
1496                let shas = output
1497                    .lines()
1498                    .map(|line| {
1499                        if line.ends_with("missing") {
1500                            None
1501                        } else {
1502                            Some(line.to_string())
1503                        }
1504                    })
1505                    .collect::<Vec<_>>();
1506
1507                if shas.len() != revs.len() {
1508                    // In an octopus merge, git cat-file still only outputs the first sha from MERGE_HEAD.
1509                    bail!("unexpected number of shas")
1510                }
1511
1512                Ok(shas)
1513            })
1514            .boxed()
1515    }
1516
1517    fn merge_message(&self) -> BoxFuture<'_, Option<String>> {
1518        let path = self.path().join("MERGE_MSG");
1519        self.executor
1520            .spawn(async move { std::fs::read_to_string(&path).ok() })
1521            .boxed()
1522    }
1523
1524    fn status(&self, path_prefixes: &[RepoPath]) -> Task<Result<GitStatus>> {
1525        let git_binary_path = self.any_git_binary_path.clone();
1526        let working_directory = match self.working_directory() {
1527            Ok(working_directory) => working_directory,
1528            Err(e) => return Task::ready(Err(e)),
1529        };
1530        let args = git_status_args(path_prefixes);
1531        log::debug!("Checking for git status in {path_prefixes:?}");
1532        self.executor.spawn(async move {
1533            let output = new_command(&git_binary_path)
1534                .current_dir(working_directory)
1535                .args(args)
1536                .output()
1537                .await?;
1538            if output.status.success() {
1539                let stdout = String::from_utf8_lossy(&output.stdout);
1540                stdout.parse()
1541            } else {
1542                let stderr = String::from_utf8_lossy(&output.stderr);
1543                anyhow::bail!("git status failed: {stderr}");
1544            }
1545        })
1546    }
1547
1548    fn diff_tree(&self, request: DiffTreeType) -> BoxFuture<'_, Result<TreeDiff>> {
1549        let git_binary_path = self.any_git_binary_path.clone();
1550        let working_directory = match self.working_directory() {
1551            Ok(working_directory) => working_directory,
1552            Err(e) => return Task::ready(Err(e)).boxed(),
1553        };
1554
1555        let mut args = vec![
1556            OsString::from("--no-optional-locks"),
1557            OsString::from("diff-tree"),
1558            OsString::from("-r"),
1559            OsString::from("-z"),
1560            OsString::from("--no-renames"),
1561        ];
1562        match request {
1563            DiffTreeType::MergeBase { base, head } => {
1564                args.push("--merge-base".into());
1565                args.push(OsString::from(base.as_str()));
1566                args.push(OsString::from(head.as_str()));
1567            }
1568            DiffTreeType::Since { base, head } => {
1569                args.push(OsString::from(base.as_str()));
1570                args.push(OsString::from(head.as_str()));
1571            }
1572        }
1573
1574        self.executor
1575            .spawn(async move {
1576                let output = new_command(&git_binary_path)
1577                    .current_dir(working_directory)
1578                    .args(args)
1579                    .output()
1580                    .await?;
1581                if output.status.success() {
1582                    let stdout = String::from_utf8_lossy(&output.stdout);
1583                    stdout.parse()
1584                } else {
1585                    let stderr = String::from_utf8_lossy(&output.stderr);
1586                    anyhow::bail!("git status failed: {stderr}");
1587                }
1588            })
1589            .boxed()
1590    }
1591
1592    fn stash_entries(&self) -> BoxFuture<'_, Result<GitStash>> {
1593        let git_binary_path = self.any_git_binary_path.clone();
1594        let working_directory = self.working_directory();
1595        self.executor
1596            .spawn(async move {
1597                let output = new_command(&git_binary_path)
1598                    .current_dir(working_directory?)
1599                    .args(&["stash", "list", "--pretty=format:%gd%x00%H%x00%ct%x00%s"])
1600                    .output()
1601                    .await?;
1602                if output.status.success() {
1603                    let stdout = String::from_utf8_lossy(&output.stdout);
1604                    stdout.parse()
1605                } else {
1606                    let stderr = String::from_utf8_lossy(&output.stderr);
1607                    anyhow::bail!("git status failed: {stderr}");
1608                }
1609            })
1610            .boxed()
1611    }
1612
1613    fn branches(&self) -> BoxFuture<'_, Result<Vec<Branch>>> {
1614        let working_directory = self.working_directory();
1615        let git_binary_path = self.any_git_binary_path.clone();
1616        self.executor
1617            .spawn(async move {
1618                let fields = [
1619                    "%(HEAD)",
1620                    "%(objectname)",
1621                    "%(parent)",
1622                    "%(refname)",
1623                    "%(upstream)",
1624                    "%(upstream:track)",
1625                    "%(committerdate:unix)",
1626                    "%(authorname)",
1627                    "%(contents:subject)",
1628                ]
1629                .join("%00");
1630                let args = vec![
1631                    "for-each-ref",
1632                    "refs/heads/**/*",
1633                    "refs/remotes/**/*",
1634                    "--format",
1635                    &fields,
1636                ];
1637                let working_directory = working_directory?;
1638                let output = new_command(&git_binary_path)
1639                    .current_dir(&working_directory)
1640                    .args(args)
1641                    .output()
1642                    .await?;
1643
1644                anyhow::ensure!(
1645                    output.status.success(),
1646                    "Failed to git git branches:\n{}",
1647                    String::from_utf8_lossy(&output.stderr)
1648                );
1649
1650                let input = String::from_utf8_lossy(&output.stdout);
1651
1652                let mut branches = parse_branch_input(&input)?;
1653                if branches.is_empty() {
1654                    let args = vec!["symbolic-ref", "--quiet", "HEAD"];
1655
1656                    let output = new_command(&git_binary_path)
1657                        .current_dir(&working_directory)
1658                        .args(args)
1659                        .output()
1660                        .await?;
1661
1662                    // git symbolic-ref returns a non-0 exit code if HEAD points
1663                    // to something other than a branch
1664                    if output.status.success() {
1665                        let name = String::from_utf8_lossy(&output.stdout).trim().to_string();
1666
1667                        branches.push(Branch {
1668                            ref_name: name.into(),
1669                            is_head: true,
1670                            upstream: None,
1671                            most_recent_commit: None,
1672                        });
1673                    }
1674                }
1675
1676                Ok(branches)
1677            })
1678            .boxed()
1679    }
1680
1681    fn worktrees(&self) -> BoxFuture<'_, Result<Vec<Worktree>>> {
1682        let git_binary_path = self.any_git_binary_path.clone();
1683        let working_directory = self.working_directory();
1684        self.executor
1685            .spawn(async move {
1686                let output = new_command(&git_binary_path)
1687                    .current_dir(working_directory?)
1688                    .args(&["--no-optional-locks", "worktree", "list", "--porcelain"])
1689                    .output()
1690                    .await?;
1691                if output.status.success() {
1692                    let stdout = String::from_utf8_lossy(&output.stdout);
1693                    Ok(parse_worktrees_from_str(&stdout))
1694                } else {
1695                    let stderr = String::from_utf8_lossy(&output.stderr);
1696                    anyhow::bail!("git worktree list failed: {stderr}");
1697                }
1698            })
1699            .boxed()
1700    }
1701
1702    fn create_worktree(
1703        &self,
1704        name: String,
1705        directory: PathBuf,
1706        from_commit: Option<String>,
1707    ) -> BoxFuture<'_, Result<()>> {
1708        let git_binary_path = self.any_git_binary_path.clone();
1709        let working_directory = self.working_directory();
1710        let final_path = directory.join(&name);
1711        let mut args = vec![
1712            OsString::from("--no-optional-locks"),
1713            OsString::from("worktree"),
1714            OsString::from("add"),
1715            OsString::from("-b"),
1716            OsString::from(name.as_str()),
1717            OsString::from("--"),
1718            OsString::from(final_path.as_os_str()),
1719        ];
1720        if let Some(from_commit) = from_commit {
1721            args.push(OsString::from(from_commit));
1722        } else {
1723            args.push(OsString::from("HEAD"));
1724        }
1725
1726        self.executor
1727            .spawn(async move {
1728                std::fs::create_dir_all(final_path.parent().unwrap_or(&final_path))?;
1729                let output = new_command(&git_binary_path)
1730                    .current_dir(working_directory?)
1731                    .args(args)
1732                    .output()
1733                    .await?;
1734                if output.status.success() {
1735                    Ok(())
1736                } else {
1737                    let stderr = String::from_utf8_lossy(&output.stderr);
1738                    anyhow::bail!("git worktree add failed: {stderr}");
1739                }
1740            })
1741            .boxed()
1742    }
1743
1744    fn remove_worktree(&self, path: PathBuf, force: bool) -> BoxFuture<'_, Result<()>> {
1745        let git_binary_path = self.any_git_binary_path.clone();
1746        let working_directory = self.working_directory();
1747        let executor = self.executor.clone();
1748
1749        self.executor
1750            .spawn(async move {
1751                let mut args: Vec<OsString> = vec![
1752                    "--no-optional-locks".into(),
1753                    "worktree".into(),
1754                    "remove".into(),
1755                ];
1756                if force {
1757                    args.push("--force".into());
1758                }
1759                args.push("--".into());
1760                args.push(path.as_os_str().into());
1761                GitBinary::new(git_binary_path, working_directory?, executor)
1762                    .run(args)
1763                    .await?;
1764                anyhow::Ok(())
1765            })
1766            .boxed()
1767    }
1768
1769    fn rename_worktree(&self, old_path: PathBuf, new_path: PathBuf) -> BoxFuture<'_, Result<()>> {
1770        let git_binary_path = self.any_git_binary_path.clone();
1771        let working_directory = self.working_directory();
1772        let executor = self.executor.clone();
1773
1774        self.executor
1775            .spawn(async move {
1776                let args: Vec<OsString> = vec![
1777                    "--no-optional-locks".into(),
1778                    "worktree".into(),
1779                    "move".into(),
1780                    "--".into(),
1781                    old_path.as_os_str().into(),
1782                    new_path.as_os_str().into(),
1783                ];
1784                GitBinary::new(git_binary_path, working_directory?, executor)
1785                    .run(args)
1786                    .await?;
1787                anyhow::Ok(())
1788            })
1789            .boxed()
1790    }
1791
1792    fn change_branch(&self, name: String) -> BoxFuture<'_, Result<()>> {
1793        let repo = self.repository.clone();
1794        let working_directory = self.working_directory();
1795        let git_binary_path = self.any_git_binary_path.clone();
1796        let executor = self.executor.clone();
1797        let branch = self.executor.spawn(async move {
1798            let repo = repo.lock();
1799            let branch = if let Ok(branch) = repo.find_branch(&name, BranchType::Local) {
1800                branch
1801            } else if let Ok(revision) = repo.find_branch(&name, BranchType::Remote) {
1802                let (_, branch_name) = name.split_once("/").context("Unexpected branch format")?;
1803
1804                let revision = revision.get();
1805                let branch_commit = revision.peel_to_commit()?;
1806                let mut branch = match repo.branch(&branch_name, &branch_commit, false) {
1807                    Ok(branch) => branch,
1808                    Err(err) if err.code() == ErrorCode::Exists => {
1809                        repo.find_branch(&branch_name, BranchType::Local)?
1810                    }
1811                    Err(err) => {
1812                        return Err(err.into());
1813                    }
1814                };
1815
1816                branch.set_upstream(Some(&name))?;
1817                branch
1818            } else {
1819                anyhow::bail!("Branch '{}' not found", name);
1820            };
1821
1822            Ok(branch
1823                .name()?
1824                .context("cannot checkout anonymous branch")?
1825                .to_string())
1826        });
1827
1828        self.executor
1829            .spawn(async move {
1830                let branch = branch.await?;
1831                GitBinary::new(git_binary_path, working_directory?, executor)
1832                    .run(&["checkout", &branch])
1833                    .await?;
1834                anyhow::Ok(())
1835            })
1836            .boxed()
1837    }
1838
1839    fn create_branch(
1840        &self,
1841        name: String,
1842        base_branch: Option<String>,
1843    ) -> BoxFuture<'_, Result<()>> {
1844        let git_binary_path = self.any_git_binary_path.clone();
1845        let working_directory = self.working_directory();
1846        let executor = self.executor.clone();
1847
1848        self.executor
1849            .spawn(async move {
1850                let mut args = vec!["switch", "-c", &name];
1851                let base_branch_str;
1852                if let Some(ref base) = base_branch {
1853                    base_branch_str = base.clone();
1854                    args.push(&base_branch_str);
1855                }
1856
1857                GitBinary::new(git_binary_path, working_directory?, executor)
1858                    .run(&args)
1859                    .await?;
1860                anyhow::Ok(())
1861            })
1862            .boxed()
1863    }
1864
1865    fn rename_branch(&self, branch: String, new_name: String) -> BoxFuture<'_, Result<()>> {
1866        let git_binary_path = self.any_git_binary_path.clone();
1867        let working_directory = self.working_directory();
1868        let executor = self.executor.clone();
1869
1870        self.executor
1871            .spawn(async move {
1872                GitBinary::new(git_binary_path, working_directory?, executor)
1873                    .run(&["branch", "-m", &branch, &new_name])
1874                    .await?;
1875                anyhow::Ok(())
1876            })
1877            .boxed()
1878    }
1879
1880    fn delete_branch(&self, name: String) -> BoxFuture<'_, Result<()>> {
1881        let git_binary_path = self.any_git_binary_path.clone();
1882        let working_directory = self.working_directory();
1883        let executor = self.executor.clone();
1884
1885        self.executor
1886            .spawn(async move {
1887                GitBinary::new(git_binary_path, working_directory?, executor)
1888                    .run(&["branch", "-d", &name])
1889                    .await?;
1890                anyhow::Ok(())
1891            })
1892            .boxed()
1893    }
1894
1895    fn blame(
1896        &self,
1897        path: RepoPath,
1898        content: Rope,
1899        line_ending: LineEnding,
1900    ) -> BoxFuture<'_, Result<crate::blame::Blame>> {
1901        let working_directory = self.working_directory();
1902        let git_binary_path = self.any_git_binary_path.clone();
1903        let executor = self.executor.clone();
1904
1905        executor
1906            .spawn(async move {
1907                crate::blame::Blame::for_path(
1908                    &git_binary_path,
1909                    &working_directory?,
1910                    &path,
1911                    &content,
1912                    line_ending,
1913                )
1914                .await
1915            })
1916            .boxed()
1917    }
1918
1919    fn file_history(&self, path: RepoPath) -> BoxFuture<'_, Result<FileHistory>> {
1920        self.file_history_paginated(path, 0, None)
1921    }
1922
1923    fn file_history_paginated(
1924        &self,
1925        path: RepoPath,
1926        skip: usize,
1927        limit: Option<usize>,
1928    ) -> BoxFuture<'_, Result<FileHistory>> {
1929        let working_directory = self.working_directory();
1930        let git_binary_path = self.any_git_binary_path.clone();
1931        self.executor
1932            .spawn(async move {
1933                let working_directory = working_directory?;
1934                // Use a unique delimiter with a hardcoded UUID to separate commits
1935                // This essentially eliminates any chance of encountering the delimiter in actual commit data
1936                let commit_delimiter =
1937                    concat!("<<COMMIT_END-", "3f8a9c2e-7d4b-4e1a-9f6c-8b5d2a1e4c3f>>",);
1938
1939                let format_string = format!(
1940                    "--pretty=format:%H%x00%s%x00%B%x00%at%x00%an%x00%ae{}",
1941                    commit_delimiter
1942                );
1943
1944                let mut args = vec!["--no-optional-locks", "log", "--follow", &format_string];
1945
1946                let skip_str;
1947                let limit_str;
1948                if skip > 0 {
1949                    skip_str = skip.to_string();
1950                    args.push("--skip");
1951                    args.push(&skip_str);
1952                }
1953                if let Some(n) = limit {
1954                    limit_str = n.to_string();
1955                    args.push("-n");
1956                    args.push(&limit_str);
1957                }
1958
1959                args.push("--");
1960
1961                let output = new_command(&git_binary_path)
1962                    .current_dir(&working_directory)
1963                    .args(&args)
1964                    .arg(path.as_unix_str())
1965                    .output()
1966                    .await?;
1967
1968                if !output.status.success() {
1969                    let stderr = String::from_utf8_lossy(&output.stderr);
1970                    bail!("git log failed: {stderr}");
1971                }
1972
1973                let stdout = std::str::from_utf8(&output.stdout)?;
1974                let mut entries = Vec::new();
1975
1976                for commit_block in stdout.split(commit_delimiter) {
1977                    let commit_block = commit_block.trim();
1978                    if commit_block.is_empty() {
1979                        continue;
1980                    }
1981
1982                    let fields: Vec<&str> = commit_block.split('\0').collect();
1983                    if fields.len() >= 6 {
1984                        let sha = fields[0].trim().to_string().into();
1985                        let subject = fields[1].trim().to_string().into();
1986                        let message = fields[2].trim().to_string().into();
1987                        let commit_timestamp = fields[3].trim().parse().unwrap_or(0);
1988                        let author_name = fields[4].trim().to_string().into();
1989                        let author_email = fields[5].trim().to_string().into();
1990
1991                        entries.push(FileHistoryEntry {
1992                            sha,
1993                            subject,
1994                            message,
1995                            commit_timestamp,
1996                            author_name,
1997                            author_email,
1998                        });
1999                    }
2000                }
2001
2002                Ok(FileHistory { entries, path })
2003            })
2004            .boxed()
2005    }
2006
2007    fn diff(&self, diff: DiffType) -> BoxFuture<'_, Result<String>> {
2008        let working_directory = self.working_directory();
2009        let git_binary_path = self.any_git_binary_path.clone();
2010        self.executor
2011            .spawn(async move {
2012                let working_directory = working_directory?;
2013                let output = match diff {
2014                    DiffType::HeadToIndex => {
2015                        new_command(&git_binary_path)
2016                            .current_dir(&working_directory)
2017                            .args(["diff", "--staged"])
2018                            .output()
2019                            .await?
2020                    }
2021                    DiffType::HeadToWorktree => {
2022                        new_command(&git_binary_path)
2023                            .current_dir(&working_directory)
2024                            .args(["diff"])
2025                            .output()
2026                            .await?
2027                    }
2028                    DiffType::MergeBase { base_ref } => {
2029                        new_command(&git_binary_path)
2030                            .current_dir(&working_directory)
2031                            .args(["diff", "--merge-base", base_ref.as_ref()])
2032                            .output()
2033                            .await?
2034                    }
2035                };
2036
2037                anyhow::ensure!(
2038                    output.status.success(),
2039                    "Failed to run git diff:\n{}",
2040                    String::from_utf8_lossy(&output.stderr)
2041                );
2042                Ok(String::from_utf8_lossy(&output.stdout).to_string())
2043            })
2044            .boxed()
2045    }
2046
2047    fn diff_stat(
2048        &self,
2049        diff: DiffType,
2050    ) -> BoxFuture<'_, Result<HashMap<RepoPath, crate::status::DiffStat>>> {
2051        let working_directory = self.working_directory();
2052        let git_binary_path = self.any_git_binary_path.clone();
2053        self.executor
2054            .spawn(async move {
2055                let working_directory = working_directory?;
2056                let output = match diff {
2057                    DiffType::HeadToIndex => {
2058                        new_command(&git_binary_path)
2059                            .current_dir(&working_directory)
2060                            .args(["diff", "--numstat", "--staged"])
2061                            .output()
2062                            .await?
2063                    }
2064                    DiffType::HeadToWorktree => {
2065                        new_command(&git_binary_path)
2066                            .current_dir(&working_directory)
2067                            .args(["diff", "--numstat"])
2068                            .output()
2069                            .await?
2070                    }
2071                    DiffType::MergeBase { base_ref } => {
2072                        new_command(&git_binary_path)
2073                            .current_dir(&working_directory)
2074                            .args([
2075                                "diff",
2076                                "--numstat",
2077                                "--merge-base",
2078                                base_ref.as_ref(),
2079                                "HEAD",
2080                            ])
2081                            .output()
2082                            .await?
2083                    }
2084                };
2085
2086                anyhow::ensure!(
2087                    output.status.success(),
2088                    "Failed to run git diff --numstat:\n{}",
2089                    String::from_utf8_lossy(&output.stderr)
2090                );
2091                Ok(crate::status::parse_numstat(&String::from_utf8_lossy(
2092                    &output.stdout,
2093                )))
2094            })
2095            .boxed()
2096    }
2097
2098    fn stage_paths(
2099        &self,
2100        paths: Vec<RepoPath>,
2101        env: Arc<HashMap<String, String>>,
2102    ) -> BoxFuture<'_, Result<()>> {
2103        let working_directory = self.working_directory();
2104        let git_binary_path = self.any_git_binary_path.clone();
2105        self.executor
2106            .spawn(async move {
2107                if !paths.is_empty() {
2108                    let output = new_command(&git_binary_path)
2109                        .current_dir(&working_directory?)
2110                        .envs(env.iter())
2111                        .args(["update-index", "--add", "--remove", "--"])
2112                        .args(paths.iter().map(|p| p.as_unix_str()))
2113                        .output()
2114                        .await?;
2115                    anyhow::ensure!(
2116                        output.status.success(),
2117                        "Failed to stage paths:\n{}",
2118                        String::from_utf8_lossy(&output.stderr),
2119                    );
2120                }
2121                Ok(())
2122            })
2123            .boxed()
2124    }
2125
2126    fn unstage_paths(
2127        &self,
2128        paths: Vec<RepoPath>,
2129        env: Arc<HashMap<String, String>>,
2130    ) -> BoxFuture<'_, Result<()>> {
2131        let working_directory = self.working_directory();
2132        let git_binary_path = self.any_git_binary_path.clone();
2133
2134        self.executor
2135            .spawn(async move {
2136                if !paths.is_empty() {
2137                    let output = new_command(&git_binary_path)
2138                        .current_dir(&working_directory?)
2139                        .envs(env.iter())
2140                        .args(["reset", "--quiet", "--"])
2141                        .args(paths.iter().map(|p| p.as_std_path()))
2142                        .output()
2143                        .await?;
2144
2145                    anyhow::ensure!(
2146                        output.status.success(),
2147                        "Failed to unstage:\n{}",
2148                        String::from_utf8_lossy(&output.stderr),
2149                    );
2150                }
2151                Ok(())
2152            })
2153            .boxed()
2154    }
2155
2156    fn stash_paths(
2157        &self,
2158        paths: Vec<RepoPath>,
2159        env: Arc<HashMap<String, String>>,
2160    ) -> BoxFuture<'_, Result<()>> {
2161        let working_directory = self.working_directory();
2162        let git_binary_path = self.any_git_binary_path.clone();
2163        self.executor
2164            .spawn(async move {
2165                let mut cmd = new_command(&git_binary_path);
2166                cmd.current_dir(&working_directory?)
2167                    .envs(env.iter())
2168                    .args(["stash", "push", "--quiet"])
2169                    .arg("--include-untracked");
2170
2171                cmd.args(paths.iter().map(|p| p.as_unix_str()));
2172
2173                let output = cmd.output().await?;
2174
2175                anyhow::ensure!(
2176                    output.status.success(),
2177                    "Failed to stash:\n{}",
2178                    String::from_utf8_lossy(&output.stderr)
2179                );
2180                Ok(())
2181            })
2182            .boxed()
2183    }
2184
2185    fn stash_pop(
2186        &self,
2187        index: Option<usize>,
2188        env: Arc<HashMap<String, String>>,
2189    ) -> BoxFuture<'_, Result<()>> {
2190        let working_directory = self.working_directory();
2191        let git_binary_path = self.any_git_binary_path.clone();
2192        self.executor
2193            .spawn(async move {
2194                let mut cmd = new_command(git_binary_path);
2195                let mut args = vec!["stash".to_string(), "pop".to_string()];
2196                if let Some(index) = index {
2197                    args.push(format!("stash@{{{}}}", index));
2198                }
2199                cmd.current_dir(&working_directory?)
2200                    .envs(env.iter())
2201                    .args(args);
2202
2203                let output = cmd.output().await?;
2204
2205                anyhow::ensure!(
2206                    output.status.success(),
2207                    "Failed to stash pop:\n{}",
2208                    String::from_utf8_lossy(&output.stderr)
2209                );
2210                Ok(())
2211            })
2212            .boxed()
2213    }
2214
2215    fn stash_apply(
2216        &self,
2217        index: Option<usize>,
2218        env: Arc<HashMap<String, String>>,
2219    ) -> BoxFuture<'_, Result<()>> {
2220        let working_directory = self.working_directory();
2221        let git_binary_path = self.any_git_binary_path.clone();
2222        self.executor
2223            .spawn(async move {
2224                let mut cmd = new_command(git_binary_path);
2225                let mut args = vec!["stash".to_string(), "apply".to_string()];
2226                if let Some(index) = index {
2227                    args.push(format!("stash@{{{}}}", index));
2228                }
2229                cmd.current_dir(&working_directory?)
2230                    .envs(env.iter())
2231                    .args(args);
2232
2233                let output = cmd.output().await?;
2234
2235                anyhow::ensure!(
2236                    output.status.success(),
2237                    "Failed to apply stash:\n{}",
2238                    String::from_utf8_lossy(&output.stderr)
2239                );
2240                Ok(())
2241            })
2242            .boxed()
2243    }
2244
2245    fn stash_drop(
2246        &self,
2247        index: Option<usize>,
2248        env: Arc<HashMap<String, String>>,
2249    ) -> BoxFuture<'_, Result<()>> {
2250        let working_directory = self.working_directory();
2251        let git_binary_path = self.any_git_binary_path.clone();
2252        self.executor
2253            .spawn(async move {
2254                let mut cmd = new_command(git_binary_path);
2255                let mut args = vec!["stash".to_string(), "drop".to_string()];
2256                if let Some(index) = index {
2257                    args.push(format!("stash@{{{}}}", index));
2258                }
2259                cmd.current_dir(&working_directory?)
2260                    .envs(env.iter())
2261                    .args(args);
2262
2263                let output = cmd.output().await?;
2264
2265                anyhow::ensure!(
2266                    output.status.success(),
2267                    "Failed to stash drop:\n{}",
2268                    String::from_utf8_lossy(&output.stderr)
2269                );
2270                Ok(())
2271            })
2272            .boxed()
2273    }
2274
2275    fn commit(
2276        &self,
2277        message: SharedString,
2278        name_and_email: Option<(SharedString, SharedString)>,
2279        options: CommitOptions,
2280        ask_pass: AskPassDelegate,
2281        env: Arc<HashMap<String, String>>,
2282    ) -> BoxFuture<'_, Result<()>> {
2283        let working_directory = self.working_directory();
2284        let git_binary_path = self.any_git_binary_path.clone();
2285        let executor = self.executor.clone();
2286        // Note: Do not spawn this command on the background thread, it might pop open the credential helper
2287        // which we want to block on.
2288        async move {
2289            let mut cmd = new_command(git_binary_path);
2290            cmd.current_dir(&working_directory?)
2291                .envs(env.iter())
2292                .args(["commit", "--quiet", "-m"])
2293                .arg(&message.to_string())
2294                .arg("--cleanup=strip")
2295                .arg("--no-verify")
2296                .stdout(Stdio::piped())
2297                .stderr(Stdio::piped());
2298
2299            if options.amend {
2300                cmd.arg("--amend");
2301            }
2302
2303            if options.signoff {
2304                cmd.arg("--signoff");
2305            }
2306
2307            if let Some((name, email)) = name_and_email {
2308                cmd.arg("--author").arg(&format!("{name} <{email}>"));
2309            }
2310
2311            run_git_command(env, ask_pass, cmd, executor).await?;
2312
2313            Ok(())
2314        }
2315        .boxed()
2316    }
2317
2318    fn push(
2319        &self,
2320        branch_name: String,
2321        remote_branch_name: String,
2322        remote_name: String,
2323        options: Option<PushOptions>,
2324        ask_pass: AskPassDelegate,
2325        env: Arc<HashMap<String, String>>,
2326        cx: AsyncApp,
2327    ) -> BoxFuture<'_, Result<RemoteCommandOutput>> {
2328        let working_directory = self.working_directory();
2329        let executor = cx.background_executor().clone();
2330        let git_binary_path = self.system_git_binary_path.clone();
2331        // Note: Do not spawn this command on the background thread, it might pop open the credential helper
2332        // which we want to block on.
2333        async move {
2334            let git_binary_path = git_binary_path.context("git not found on $PATH, can't push")?;
2335            let working_directory = working_directory?;
2336            let mut command = new_command(git_binary_path);
2337            command
2338                .envs(env.iter())
2339                .current_dir(&working_directory)
2340                .args(["push"])
2341                .args(options.map(|option| match option {
2342                    PushOptions::SetUpstream => "--set-upstream",
2343                    PushOptions::Force => "--force-with-lease",
2344                }))
2345                .arg(remote_name)
2346                .arg(format!("{}:{}", branch_name, remote_branch_name))
2347                .stdin(Stdio::null())
2348                .stdout(Stdio::piped())
2349                .stderr(Stdio::piped());
2350
2351            run_git_command(env, ask_pass, command, executor).await
2352        }
2353        .boxed()
2354    }
2355
2356    fn pull(
2357        &self,
2358        branch_name: Option<String>,
2359        remote_name: String,
2360        rebase: bool,
2361        ask_pass: AskPassDelegate,
2362        env: Arc<HashMap<String, String>>,
2363        cx: AsyncApp,
2364    ) -> BoxFuture<'_, Result<RemoteCommandOutput>> {
2365        let working_directory = self.working_directory();
2366        let executor = cx.background_executor().clone();
2367        let git_binary_path = self.system_git_binary_path.clone();
2368        // Note: Do not spawn this command on the background thread, it might pop open the credential helper
2369        // which we want to block on.
2370        async move {
2371            let git_binary_path = git_binary_path.context("git not found on $PATH, can't pull")?;
2372            let mut command = new_command(git_binary_path);
2373            command
2374                .envs(env.iter())
2375                .current_dir(&working_directory?)
2376                .arg("pull");
2377
2378            if rebase {
2379                command.arg("--rebase");
2380            }
2381
2382            command
2383                .arg(remote_name)
2384                .args(branch_name)
2385                .stdout(Stdio::piped())
2386                .stderr(Stdio::piped());
2387
2388            run_git_command(env, ask_pass, command, executor).await
2389        }
2390        .boxed()
2391    }
2392
2393    fn fetch(
2394        &self,
2395        fetch_options: FetchOptions,
2396        ask_pass: AskPassDelegate,
2397        env: Arc<HashMap<String, String>>,
2398        cx: AsyncApp,
2399    ) -> BoxFuture<'_, Result<RemoteCommandOutput>> {
2400        let working_directory = self.working_directory();
2401        let remote_name = format!("{}", fetch_options);
2402        let git_binary_path = self.system_git_binary_path.clone();
2403        let executor = cx.background_executor().clone();
2404        // Note: Do not spawn this command on the background thread, it might pop open the credential helper
2405        // which we want to block on.
2406        async move {
2407            let git_binary_path = git_binary_path.context("git not found on $PATH, can't fetch")?;
2408            let mut command = new_command(git_binary_path);
2409            command
2410                .envs(env.iter())
2411                .current_dir(&working_directory?)
2412                .args(["fetch", &remote_name])
2413                .stdout(Stdio::piped())
2414                .stderr(Stdio::piped());
2415
2416            run_git_command(env, ask_pass, command, executor).await
2417        }
2418        .boxed()
2419    }
2420
2421    fn get_push_remote(&self, branch: String) -> BoxFuture<'_, Result<Option<Remote>>> {
2422        let working_directory = self.working_directory();
2423        let git_binary_path = self.any_git_binary_path.clone();
2424        self.executor
2425            .spawn(async move {
2426                let working_directory = working_directory?;
2427                let output = new_command(&git_binary_path)
2428                    .current_dir(&working_directory)
2429                    .args(["rev-parse", "--abbrev-ref"])
2430                    .arg(format!("{branch}@{{push}}"))
2431                    .output()
2432                    .await?;
2433                if !output.status.success() {
2434                    return Ok(None);
2435                }
2436                let remote_name = String::from_utf8_lossy(&output.stdout)
2437                    .split('/')
2438                    .next()
2439                    .map(|name| Remote {
2440                        name: name.trim().to_string().into(),
2441                    });
2442
2443                Ok(remote_name)
2444            })
2445            .boxed()
2446    }
2447
2448    fn get_branch_remote(&self, branch: String) -> BoxFuture<'_, Result<Option<Remote>>> {
2449        let working_directory = self.working_directory();
2450        let git_binary_path = self.any_git_binary_path.clone();
2451        self.executor
2452            .spawn(async move {
2453                let working_directory = working_directory?;
2454                let output = new_command(&git_binary_path)
2455                    .current_dir(&working_directory)
2456                    .args(["config", "--get"])
2457                    .arg(format!("branch.{branch}.remote"))
2458                    .output()
2459                    .await?;
2460                if !output.status.success() {
2461                    return Ok(None);
2462                }
2463
2464                let remote_name = String::from_utf8_lossy(&output.stdout);
2465                return Ok(Some(Remote {
2466                    name: remote_name.trim().to_string().into(),
2467                }));
2468            })
2469            .boxed()
2470    }
2471
2472    fn get_all_remotes(&self) -> BoxFuture<'_, Result<Vec<Remote>>> {
2473        let working_directory = self.working_directory();
2474        let git_binary_path = self.any_git_binary_path.clone();
2475        self.executor
2476            .spawn(async move {
2477                let working_directory = working_directory?;
2478                let output = new_command(&git_binary_path)
2479                    .current_dir(&working_directory)
2480                    .args(["remote", "-v"])
2481                    .output()
2482                    .await?;
2483
2484                anyhow::ensure!(
2485                    output.status.success(),
2486                    "Failed to get all remotes:\n{}",
2487                    String::from_utf8_lossy(&output.stderr)
2488                );
2489                let remote_names: HashSet<Remote> = String::from_utf8_lossy(&output.stdout)
2490                    .lines()
2491                    .filter(|line| !line.is_empty())
2492                    .filter_map(|line| {
2493                        let mut split_line = line.split_whitespace();
2494                        let remote_name = split_line.next()?;
2495
2496                        Some(Remote {
2497                            name: remote_name.trim().to_string().into(),
2498                        })
2499                    })
2500                    .collect();
2501
2502                Ok(remote_names.into_iter().collect())
2503            })
2504            .boxed()
2505    }
2506
2507    fn remove_remote(&self, name: String) -> BoxFuture<'_, Result<()>> {
2508        let repo = self.repository.clone();
2509        self.executor
2510            .spawn(async move {
2511                let repo = repo.lock();
2512                repo.remote_delete(&name)?;
2513
2514                Ok(())
2515            })
2516            .boxed()
2517    }
2518
2519    fn create_remote(&self, name: String, url: String) -> BoxFuture<'_, Result<()>> {
2520        let repo = self.repository.clone();
2521        self.executor
2522            .spawn(async move {
2523                let repo = repo.lock();
2524                repo.remote(&name, url.as_ref())?;
2525                Ok(())
2526            })
2527            .boxed()
2528    }
2529
2530    fn check_for_pushed_commit(&self) -> BoxFuture<'_, Result<Vec<SharedString>>> {
2531        let working_directory = self.working_directory();
2532        let git_binary_path = self.any_git_binary_path.clone();
2533        self.executor
2534            .spawn(async move {
2535                let working_directory = working_directory?;
2536                let git_cmd = async |args: &[&str]| -> Result<String> {
2537                    let output = new_command(&git_binary_path)
2538                        .current_dir(&working_directory)
2539                        .args(args)
2540                        .output()
2541                        .await?;
2542                    anyhow::ensure!(
2543                        output.status.success(),
2544                        String::from_utf8_lossy(&output.stderr).to_string()
2545                    );
2546                    Ok(String::from_utf8(output.stdout)?)
2547                };
2548
2549                let head = git_cmd(&["rev-parse", "HEAD"])
2550                    .await
2551                    .context("Failed to get HEAD")?
2552                    .trim()
2553                    .to_owned();
2554
2555                let mut remote_branches = vec![];
2556                let mut add_if_matching = async |remote_head: &str| {
2557                    if let Ok(merge_base) = git_cmd(&["merge-base", &head, remote_head]).await
2558                        && merge_base.trim() == head
2559                        && let Some(s) = remote_head.strip_prefix("refs/remotes/")
2560                    {
2561                        remote_branches.push(s.to_owned().into());
2562                    }
2563                };
2564
2565                // check the main branch of each remote
2566                let remotes = git_cmd(&["remote"])
2567                    .await
2568                    .context("Failed to get remotes")?;
2569                for remote in remotes.lines() {
2570                    if let Ok(remote_head) =
2571                        git_cmd(&["symbolic-ref", &format!("refs/remotes/{remote}/HEAD")]).await
2572                    {
2573                        add_if_matching(remote_head.trim()).await;
2574                    }
2575                }
2576
2577                // ... and the remote branch that the checked-out one is tracking
2578                if let Ok(remote_head) =
2579                    git_cmd(&["rev-parse", "--symbolic-full-name", "@{u}"]).await
2580                {
2581                    add_if_matching(remote_head.trim()).await;
2582                }
2583
2584                Ok(remote_branches)
2585            })
2586            .boxed()
2587    }
2588
2589    fn checkpoint(&self) -> BoxFuture<'static, Result<GitRepositoryCheckpoint>> {
2590        let working_directory = self.working_directory();
2591        let git_binary_path = self.any_git_binary_path.clone();
2592        let executor = self.executor.clone();
2593        self.executor
2594            .spawn(async move {
2595                let working_directory = working_directory?;
2596                let mut git = GitBinary::new(git_binary_path, working_directory.clone(), executor)
2597                    .envs(checkpoint_author_envs());
2598                git.with_temp_index(async |git| {
2599                    let head_sha = git.run(&["rev-parse", "HEAD"]).await.ok();
2600                    let mut excludes = exclude_files(git).await?;
2601
2602                    git.run(&["add", "--all"]).await?;
2603                    let tree = git.run(&["write-tree"]).await?;
2604                    let checkpoint_sha = if let Some(head_sha) = head_sha.as_deref() {
2605                        git.run(&["commit-tree", &tree, "-p", head_sha, "-m", "Checkpoint"])
2606                            .await?
2607                    } else {
2608                        git.run(&["commit-tree", &tree, "-m", "Checkpoint"]).await?
2609                    };
2610
2611                    excludes.restore_original().await?;
2612
2613                    Ok(GitRepositoryCheckpoint {
2614                        commit_sha: checkpoint_sha.parse()?,
2615                    })
2616                })
2617                .await
2618            })
2619            .boxed()
2620    }
2621
2622    fn restore_checkpoint(&self, checkpoint: GitRepositoryCheckpoint) -> BoxFuture<'_, Result<()>> {
2623        let working_directory = self.working_directory();
2624        let git_binary_path = self.any_git_binary_path.clone();
2625
2626        let executor = self.executor.clone();
2627        self.executor
2628            .spawn(async move {
2629                let working_directory = working_directory?;
2630
2631                let git = GitBinary::new(git_binary_path, working_directory, executor);
2632                git.run(&[
2633                    "restore",
2634                    "--source",
2635                    &checkpoint.commit_sha.to_string(),
2636                    "--worktree",
2637                    ".",
2638                ])
2639                .await?;
2640
2641                // TODO: We don't track binary and large files anymore,
2642                //       so the following call would delete them.
2643                //       Implement an alternative way to track files added by agent.
2644                //
2645                // git.with_temp_index(async move |git| {
2646                //     git.run(&["read-tree", &checkpoint.commit_sha.to_string()])
2647                //         .await?;
2648                //     git.run(&["clean", "-d", "--force"]).await
2649                // })
2650                // .await?;
2651
2652                Ok(())
2653            })
2654            .boxed()
2655    }
2656
2657    fn compare_checkpoints(
2658        &self,
2659        left: GitRepositoryCheckpoint,
2660        right: GitRepositoryCheckpoint,
2661    ) -> BoxFuture<'_, Result<bool>> {
2662        let working_directory = self.working_directory();
2663        let git_binary_path = self.any_git_binary_path.clone();
2664
2665        let executor = self.executor.clone();
2666        self.executor
2667            .spawn(async move {
2668                let working_directory = working_directory?;
2669                let git = GitBinary::new(git_binary_path, working_directory, executor);
2670                let result = git
2671                    .run(&[
2672                        "diff-tree",
2673                        "--quiet",
2674                        &left.commit_sha.to_string(),
2675                        &right.commit_sha.to_string(),
2676                    ])
2677                    .await;
2678                match result {
2679                    Ok(_) => Ok(true),
2680                    Err(error) => {
2681                        if let Some(GitBinaryCommandError { status, .. }) =
2682                            error.downcast_ref::<GitBinaryCommandError>()
2683                            && status.code() == Some(1)
2684                        {
2685                            return Ok(false);
2686                        }
2687
2688                        Err(error)
2689                    }
2690                }
2691            })
2692            .boxed()
2693    }
2694
2695    fn diff_checkpoints(
2696        &self,
2697        base_checkpoint: GitRepositoryCheckpoint,
2698        target_checkpoint: GitRepositoryCheckpoint,
2699    ) -> BoxFuture<'_, Result<String>> {
2700        let working_directory = self.working_directory();
2701        let git_binary_path = self.any_git_binary_path.clone();
2702
2703        let executor = self.executor.clone();
2704        self.executor
2705            .spawn(async move {
2706                let working_directory = working_directory?;
2707                let git = GitBinary::new(git_binary_path, working_directory, executor);
2708                git.run(&[
2709                    "diff",
2710                    "--find-renames",
2711                    "--patch",
2712                    &base_checkpoint.commit_sha.to_string(),
2713                    &target_checkpoint.commit_sha.to_string(),
2714                ])
2715                .await
2716            })
2717            .boxed()
2718    }
2719
2720    fn default_branch(
2721        &self,
2722        include_remote_name: bool,
2723    ) -> BoxFuture<'_, Result<Option<SharedString>>> {
2724        let working_directory = self.working_directory();
2725        let git_binary_path = self.any_git_binary_path.clone();
2726
2727        let executor = self.executor.clone();
2728        self.executor
2729            .spawn(async move {
2730                let working_directory = working_directory?;
2731                let git = GitBinary::new(git_binary_path, working_directory, executor);
2732
2733                let strip_prefix = if include_remote_name {
2734                    "refs/remotes/"
2735                } else {
2736                    "refs/remotes/upstream/"
2737                };
2738
2739                if let Ok(output) = git
2740                    .run(&["symbolic-ref", "refs/remotes/upstream/HEAD"])
2741                    .await
2742                {
2743                    let output = output
2744                        .strip_prefix(strip_prefix)
2745                        .map(|s| SharedString::from(s.to_owned()));
2746                    return Ok(output);
2747                }
2748
2749                let strip_prefix = if include_remote_name {
2750                    "refs/remotes/"
2751                } else {
2752                    "refs/remotes/origin/"
2753                };
2754
2755                if let Ok(output) = git.run(&["symbolic-ref", "refs/remotes/origin/HEAD"]).await {
2756                    return Ok(output
2757                        .strip_prefix(strip_prefix)
2758                        .map(|s| SharedString::from(s.to_owned())));
2759                }
2760
2761                if let Ok(default_branch) = git.run(&["config", "init.defaultBranch"]).await {
2762                    if git.run(&["rev-parse", &default_branch]).await.is_ok() {
2763                        return Ok(Some(default_branch.into()));
2764                    }
2765                }
2766
2767                if git.run(&["rev-parse", "master"]).await.is_ok() {
2768                    return Ok(Some("master".into()));
2769                }
2770
2771                Ok(None)
2772            })
2773            .boxed()
2774    }
2775
2776    fn run_hook(
2777        &self,
2778        hook: RunHook,
2779        env: Arc<HashMap<String, String>>,
2780    ) -> BoxFuture<'_, Result<()>> {
2781        let working_directory = self.working_directory();
2782        let repository = self.repository.clone();
2783        let git_binary_path = self.any_git_binary_path.clone();
2784        let executor = self.executor.clone();
2785        let help_output = self.any_git_binary_help_output();
2786
2787        // Note: Do not spawn these commands on the background thread, as this causes some git hooks to hang.
2788        async move {
2789            let working_directory = working_directory?;
2790            if !help_output
2791                .await
2792                .lines()
2793                .any(|line| line.trim().starts_with("hook "))
2794            {
2795                let hook_abs_path = repository.lock().path().join("hooks").join(hook.as_str());
2796                if hook_abs_path.is_file() {
2797                    let output = new_command(&hook_abs_path)
2798                        .envs(env.iter())
2799                        .current_dir(&working_directory)
2800                        .output()
2801                        .await?;
2802
2803                    if !output.status.success() {
2804                        return Err(GitBinaryCommandError {
2805                            stdout: String::from_utf8_lossy(&output.stdout).into_owned(),
2806                            stderr: String::from_utf8_lossy(&output.stderr).into_owned(),
2807                            status: output.status,
2808                        }
2809                        .into());
2810                    }
2811                }
2812
2813                return Ok(());
2814            }
2815
2816            let git = GitBinary::new(git_binary_path, working_directory, executor)
2817                .envs(HashMap::clone(&env));
2818            git.run(&["hook", "run", "--ignore-missing", hook.as_str()])
2819                .await?;
2820            Ok(())
2821        }
2822        .boxed()
2823    }
2824
2825    fn initial_graph_data(
2826        &self,
2827        log_source: LogSource,
2828        log_order: LogOrder,
2829        request_tx: Sender<Vec<Arc<InitialGraphCommitData>>>,
2830    ) -> BoxFuture<'_, Result<()>> {
2831        let git_binary_path = self.any_git_binary_path.clone();
2832        let working_directory = self.working_directory();
2833        let executor = self.executor.clone();
2834
2835        async move {
2836            let working_directory = working_directory?;
2837            let git = GitBinary::new(git_binary_path, working_directory, executor);
2838
2839            let mut command = git.build_command([
2840                "log",
2841                GRAPH_COMMIT_FORMAT,
2842                log_order.as_arg(),
2843                log_source.get_arg()?,
2844            ]);
2845            command.stdout(Stdio::piped());
2846            command.stderr(Stdio::null());
2847
2848            let mut child = command.spawn()?;
2849            let stdout = child.stdout.take().context("failed to get stdout")?;
2850            let mut reader = BufReader::new(stdout);
2851
2852            let mut line_buffer = String::new();
2853            let mut lines: Vec<String> = Vec::with_capacity(GRAPH_CHUNK_SIZE);
2854
2855            loop {
2856                line_buffer.clear();
2857                let bytes_read = reader.read_line(&mut line_buffer).await?;
2858
2859                if bytes_read == 0 {
2860                    if !lines.is_empty() {
2861                        let commits = parse_initial_graph_output(lines.iter().map(|s| s.as_str()));
2862                        if request_tx.send(commits).await.is_err() {
2863                            log::warn!(
2864                                "initial_graph_data: receiver dropped while sending commits"
2865                            );
2866                        }
2867                    }
2868                    break;
2869                }
2870
2871                let line = line_buffer.trim_end_matches('\n').to_string();
2872                lines.push(line);
2873
2874                if lines.len() >= GRAPH_CHUNK_SIZE {
2875                    let commits = parse_initial_graph_output(lines.iter().map(|s| s.as_str()));
2876                    if request_tx.send(commits).await.is_err() {
2877                        log::warn!("initial_graph_data: receiver dropped while streaming commits");
2878                        break;
2879                    }
2880                    lines.clear();
2881                }
2882            }
2883
2884            child.status().await?;
2885            Ok(())
2886        }
2887        .boxed()
2888    }
2889
2890    fn commit_data_reader(&self) -> Result<CommitDataReader> {
2891        let git_binary_path = self.any_git_binary_path.clone();
2892        let working_directory = self
2893            .working_directory()
2894            .map_err(|_| anyhow!("no working directory"))?;
2895        let executor = self.executor.clone();
2896
2897        let (request_tx, request_rx) = smol::channel::bounded::<CommitDataRequest>(64);
2898
2899        let task = self.executor.spawn(async move {
2900            if let Err(error) =
2901                run_commit_data_reader(git_binary_path, working_directory, executor, request_rx)
2902                    .await
2903            {
2904                log::error!("commit data reader failed: {error:?}");
2905            }
2906        });
2907
2908        Ok(CommitDataReader {
2909            request_tx,
2910            _task: task,
2911        })
2912    }
2913}
2914
2915async fn run_commit_data_reader(
2916    git_binary_path: PathBuf,
2917    working_directory: PathBuf,
2918    executor: BackgroundExecutor,
2919    request_rx: smol::channel::Receiver<CommitDataRequest>,
2920) -> Result<()> {
2921    let git = GitBinary::new(git_binary_path, working_directory, executor);
2922    let mut process = git
2923        .build_command(["--no-optional-locks", "cat-file", "--batch"])
2924        .stdin(Stdio::piped())
2925        .stdout(Stdio::piped())
2926        .stderr(Stdio::piped())
2927        .spawn()
2928        .context("starting git cat-file --batch process")?;
2929
2930    let mut stdin = BufWriter::new(process.stdin.take().context("no stdin")?);
2931    let mut stdout = BufReader::new(process.stdout.take().context("no stdout")?);
2932
2933    const MAX_BATCH_SIZE: usize = 64;
2934
2935    while let Ok(first_request) = request_rx.recv().await {
2936        let mut pending_requests = vec![first_request];
2937
2938        while pending_requests.len() < MAX_BATCH_SIZE {
2939            match request_rx.try_recv() {
2940                Ok(request) => pending_requests.push(request),
2941                Err(_) => break,
2942            }
2943        }
2944
2945        for request in &pending_requests {
2946            stdin.write_all(request.sha.to_string().as_bytes()).await?;
2947            stdin.write_all(b"\n").await?;
2948        }
2949        stdin.flush().await?;
2950
2951        for request in pending_requests {
2952            let result = read_single_commit_response(&mut stdout, &request.sha).await;
2953            request.response_tx.send(result).ok();
2954        }
2955    }
2956
2957    drop(stdin);
2958    process.kill().ok();
2959
2960    Ok(())
2961}
2962
2963async fn read_single_commit_response<R: smol::io::AsyncBufRead + Unpin>(
2964    stdout: &mut R,
2965    sha: &Oid,
2966) -> Result<GraphCommitData> {
2967    let mut header_bytes = Vec::new();
2968    stdout.read_until(b'\n', &mut header_bytes).await?;
2969    let header_line = String::from_utf8_lossy(&header_bytes);
2970
2971    let parts: Vec<&str> = header_line.trim().split(' ').collect();
2972    if parts.len() < 3 {
2973        bail!("invalid cat-file header: {header_line}");
2974    }
2975
2976    let object_type = parts[1];
2977    if object_type == "missing" {
2978        bail!("object not found: {}", sha);
2979    }
2980
2981    if object_type != "commit" {
2982        bail!("expected commit object, got {object_type}");
2983    }
2984
2985    let size: usize = parts[2]
2986        .parse()
2987        .with_context(|| format!("invalid object size: {}", parts[2]))?;
2988
2989    let mut content = vec![0u8; size];
2990    stdout.read_exact(&mut content).await?;
2991
2992    let mut newline = [0u8; 1];
2993    stdout.read_exact(&mut newline).await?;
2994
2995    let content_str = String::from_utf8_lossy(&content);
2996    parse_cat_file_commit(*sha, &content_str)
2997        .ok_or_else(|| anyhow!("failed to parse commit {}", sha))
2998}
2999
3000fn parse_initial_graph_output<'a>(
3001    lines: impl Iterator<Item = &'a str>,
3002) -> Vec<Arc<InitialGraphCommitData>> {
3003    lines
3004        .filter(|line| !line.is_empty())
3005        .filter_map(|line| {
3006            // Format: "SHA\x00PARENT1 PARENT2...\x00REF1, REF2, ..."
3007            let mut parts = line.split('\x00');
3008
3009            let sha = Oid::from_str(parts.next()?).ok()?;
3010            let parents_str = parts.next()?;
3011            let parents = parents_str
3012                .split_whitespace()
3013                .filter_map(|p| Oid::from_str(p).ok())
3014                .collect();
3015
3016            let ref_names_str = parts.next().unwrap_or("");
3017            let ref_names = if ref_names_str.is_empty() {
3018                Vec::new()
3019            } else {
3020                ref_names_str
3021                    .split(", ")
3022                    .map(|s| SharedString::from(s.to_string()))
3023                    .collect()
3024            };
3025
3026            Some(Arc::new(InitialGraphCommitData {
3027                sha,
3028                parents,
3029                ref_names,
3030            }))
3031        })
3032        .collect()
3033}
3034
3035fn git_status_args(path_prefixes: &[RepoPath]) -> Vec<OsString> {
3036    let mut args = vec![
3037        OsString::from("--no-optional-locks"),
3038        OsString::from("status"),
3039        OsString::from("--porcelain=v1"),
3040        OsString::from("--untracked-files=all"),
3041        OsString::from("--no-renames"),
3042        OsString::from("-z"),
3043    ];
3044    args.extend(
3045        path_prefixes
3046            .iter()
3047            .map(|path_prefix| path_prefix.as_std_path().into()),
3048    );
3049    args.extend(path_prefixes.iter().map(|path_prefix| {
3050        if path_prefix.is_empty() {
3051            Path::new(".").into()
3052        } else {
3053            path_prefix.as_std_path().into()
3054        }
3055    }));
3056    args
3057}
3058
3059/// Temporarily git-ignore commonly ignored files and files over 2MB
3060async fn exclude_files(git: &GitBinary) -> Result<GitExcludeOverride> {
3061    const MAX_SIZE: u64 = 2 * 1024 * 1024; // 2 MB
3062    let mut excludes = git.with_exclude_overrides().await?;
3063    excludes
3064        .add_excludes(include_str!("./checkpoint.gitignore"))
3065        .await?;
3066
3067    let working_directory = git.working_directory.clone();
3068    let untracked_files = git.list_untracked_files().await?;
3069    let excluded_paths = untracked_files.into_iter().map(|path| {
3070        let working_directory = working_directory.clone();
3071        smol::spawn(async move {
3072            let full_path = working_directory.join(path.clone());
3073            match smol::fs::metadata(&full_path).await {
3074                Ok(metadata) if metadata.is_file() && metadata.len() >= MAX_SIZE => {
3075                    Some(PathBuf::from("/").join(path.clone()))
3076                }
3077                _ => None,
3078            }
3079        })
3080    });
3081
3082    let excluded_paths = futures::future::join_all(excluded_paths).await;
3083    let excluded_paths = excluded_paths.into_iter().flatten().collect::<Vec<_>>();
3084
3085    if !excluded_paths.is_empty() {
3086        let exclude_patterns = excluded_paths
3087            .into_iter()
3088            .map(|path| path.to_string_lossy().into_owned())
3089            .collect::<Vec<_>>()
3090            .join("\n");
3091        excludes.add_excludes(&exclude_patterns).await?;
3092    }
3093
3094    Ok(excludes)
3095}
3096
3097struct GitBinary {
3098    git_binary_path: PathBuf,
3099    working_directory: PathBuf,
3100    executor: BackgroundExecutor,
3101    index_file_path: Option<PathBuf>,
3102    envs: HashMap<String, String>,
3103}
3104
3105impl GitBinary {
3106    fn new(
3107        git_binary_path: PathBuf,
3108        working_directory: PathBuf,
3109        executor: BackgroundExecutor,
3110    ) -> Self {
3111        Self {
3112            git_binary_path,
3113            working_directory,
3114            executor,
3115            index_file_path: None,
3116            envs: HashMap::default(),
3117        }
3118    }
3119
3120    async fn list_untracked_files(&self) -> Result<Vec<PathBuf>> {
3121        let status_output = self
3122            .run(&["status", "--porcelain=v1", "--untracked-files=all", "-z"])
3123            .await?;
3124
3125        let paths = status_output
3126            .split('\0')
3127            .filter(|entry| entry.len() >= 3 && entry.starts_with("?? "))
3128            .map(|entry| PathBuf::from(&entry[3..]))
3129            .collect::<Vec<_>>();
3130        Ok(paths)
3131    }
3132
3133    fn envs(mut self, envs: HashMap<String, String>) -> Self {
3134        self.envs = envs;
3135        self
3136    }
3137
3138    pub async fn with_temp_index<R>(
3139        &mut self,
3140        f: impl AsyncFnOnce(&Self) -> Result<R>,
3141    ) -> Result<R> {
3142        let index_file_path = self.path_for_index_id(Uuid::new_v4());
3143
3144        let delete_temp_index = util::defer({
3145            let index_file_path = index_file_path.clone();
3146            let executor = self.executor.clone();
3147            move || {
3148                executor
3149                    .spawn(async move {
3150                        smol::fs::remove_file(index_file_path).await.log_err();
3151                    })
3152                    .detach();
3153            }
3154        });
3155
3156        // Copy the default index file so that Git doesn't have to rebuild the
3157        // whole index from scratch. This might fail if this is an empty repository.
3158        smol::fs::copy(
3159            self.working_directory.join(".git").join("index"),
3160            &index_file_path,
3161        )
3162        .await
3163        .ok();
3164
3165        self.index_file_path = Some(index_file_path.clone());
3166        let result = f(self).await;
3167        self.index_file_path = None;
3168        let result = result?;
3169
3170        smol::fs::remove_file(index_file_path).await.ok();
3171        delete_temp_index.abort();
3172
3173        Ok(result)
3174    }
3175
3176    pub async fn with_exclude_overrides(&self) -> Result<GitExcludeOverride> {
3177        let path = self
3178            .working_directory
3179            .join(".git")
3180            .join("info")
3181            .join("exclude");
3182
3183        GitExcludeOverride::new(path).await
3184    }
3185
3186    fn path_for_index_id(&self, id: Uuid) -> PathBuf {
3187        self.working_directory
3188            .join(".git")
3189            .join(format!("index-{}.tmp", id))
3190    }
3191
3192    pub async fn run<S>(&self, args: impl IntoIterator<Item = S>) -> Result<String>
3193    where
3194        S: AsRef<OsStr>,
3195    {
3196        let mut stdout = self.run_raw(args).await?;
3197        if stdout.chars().last() == Some('\n') {
3198            stdout.pop();
3199        }
3200        Ok(stdout)
3201    }
3202
3203    /// Returns the result of the command without trimming the trailing newline.
3204    pub async fn run_raw<S>(&self, args: impl IntoIterator<Item = S>) -> Result<String>
3205    where
3206        S: AsRef<OsStr>,
3207    {
3208        let mut command = self.build_command(args);
3209        let output = command.output().await?;
3210        anyhow::ensure!(
3211            output.status.success(),
3212            GitBinaryCommandError {
3213                stdout: String::from_utf8_lossy(&output.stdout).to_string(),
3214                stderr: String::from_utf8_lossy(&output.stderr).to_string(),
3215                status: output.status,
3216            }
3217        );
3218        Ok(String::from_utf8(output.stdout)?)
3219    }
3220
3221    fn build_command<S>(&self, args: impl IntoIterator<Item = S>) -> util::command::Command
3222    where
3223        S: AsRef<OsStr>,
3224    {
3225        let mut command = new_command(&self.git_binary_path);
3226        command.current_dir(&self.working_directory);
3227        command.args(args);
3228        if let Some(index_file_path) = self.index_file_path.as_ref() {
3229            command.env("GIT_INDEX_FILE", index_file_path);
3230        }
3231        command.envs(&self.envs);
3232        command
3233    }
3234}
3235
3236#[derive(Error, Debug)]
3237#[error("Git command failed:\n{stdout}{stderr}\n")]
3238struct GitBinaryCommandError {
3239    stdout: String,
3240    stderr: String,
3241    status: ExitStatus,
3242}
3243
3244async fn run_git_command(
3245    env: Arc<HashMap<String, String>>,
3246    ask_pass: AskPassDelegate,
3247    mut command: util::command::Command,
3248    executor: BackgroundExecutor,
3249) -> Result<RemoteCommandOutput> {
3250    if env.contains_key("GIT_ASKPASS") {
3251        let git_process = command.spawn()?;
3252        let output = git_process.output().await?;
3253        anyhow::ensure!(
3254            output.status.success(),
3255            "{}",
3256            String::from_utf8_lossy(&output.stderr)
3257        );
3258        Ok(RemoteCommandOutput {
3259            stdout: String::from_utf8_lossy(&output.stdout).to_string(),
3260            stderr: String::from_utf8_lossy(&output.stderr).to_string(),
3261        })
3262    } else {
3263        let ask_pass = AskPassSession::new(executor, ask_pass).await?;
3264        command
3265            .env("GIT_ASKPASS", ask_pass.script_path())
3266            .env("SSH_ASKPASS", ask_pass.script_path())
3267            .env("SSH_ASKPASS_REQUIRE", "force");
3268        let git_process = command.spawn()?;
3269
3270        run_askpass_command(ask_pass, git_process).await
3271    }
3272}
3273
3274async fn run_askpass_command(
3275    mut ask_pass: AskPassSession,
3276    git_process: util::command::Child,
3277) -> anyhow::Result<RemoteCommandOutput> {
3278    select_biased! {
3279        result = ask_pass.run().fuse() => {
3280            match result {
3281                AskPassResult::CancelledByUser => {
3282                    Err(anyhow!(REMOTE_CANCELLED_BY_USER))?
3283                }
3284                AskPassResult::Timedout => {
3285                    Err(anyhow!("Connecting to host timed out"))?
3286                }
3287            }
3288        }
3289        output = git_process.output().fuse() => {
3290            let output = output?;
3291            anyhow::ensure!(
3292                output.status.success(),
3293                "{}",
3294                String::from_utf8_lossy(&output.stderr)
3295            );
3296            Ok(RemoteCommandOutput {
3297                stdout: String::from_utf8_lossy(&output.stdout).to_string(),
3298                stderr: String::from_utf8_lossy(&output.stderr).to_string(),
3299            })
3300        }
3301    }
3302}
3303
3304#[derive(Clone, Ord, Hash, PartialOrd, Eq, PartialEq)]
3305pub struct RepoPath(Arc<RelPath>);
3306
3307impl std::fmt::Debug for RepoPath {
3308    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
3309        self.0.fmt(f)
3310    }
3311}
3312
3313impl RepoPath {
3314    pub fn new<S: AsRef<str> + ?Sized>(s: &S) -> Result<Self> {
3315        let rel_path = RelPath::unix(s.as_ref())?;
3316        Ok(Self::from_rel_path(rel_path))
3317    }
3318
3319    pub fn from_std_path(path: &Path, path_style: PathStyle) -> Result<Self> {
3320        let rel_path = RelPath::new(path, path_style)?;
3321        Ok(Self::from_rel_path(&rel_path))
3322    }
3323
3324    pub fn from_proto(proto: &str) -> Result<Self> {
3325        let rel_path = RelPath::from_proto(proto)?;
3326        Ok(Self(rel_path))
3327    }
3328
3329    pub fn from_rel_path(path: &RelPath) -> RepoPath {
3330        Self(Arc::from(path))
3331    }
3332
3333    pub fn as_std_path(&self) -> &Path {
3334        // git2 does not like empty paths and our RelPath infra turns `.` into ``
3335        // so undo that here
3336        if self.is_empty() {
3337            Path::new(".")
3338        } else {
3339            self.0.as_std_path()
3340        }
3341    }
3342}
3343
3344#[cfg(any(test, feature = "test-support"))]
3345pub fn repo_path<S: AsRef<str> + ?Sized>(s: &S) -> RepoPath {
3346    RepoPath(RelPath::unix(s.as_ref()).unwrap().into())
3347}
3348
3349impl AsRef<Arc<RelPath>> for RepoPath {
3350    fn as_ref(&self) -> &Arc<RelPath> {
3351        &self.0
3352    }
3353}
3354
3355impl std::ops::Deref for RepoPath {
3356    type Target = RelPath;
3357
3358    fn deref(&self) -> &Self::Target {
3359        &self.0
3360    }
3361}
3362
3363#[derive(Debug)]
3364pub struct RepoPathDescendants<'a>(pub &'a RepoPath);
3365
3366impl MapSeekTarget<RepoPath> for RepoPathDescendants<'_> {
3367    fn cmp_cursor(&self, key: &RepoPath) -> Ordering {
3368        if key.starts_with(self.0) {
3369            Ordering::Greater
3370        } else {
3371            self.0.cmp(key)
3372        }
3373    }
3374}
3375
3376fn parse_branch_input(input: &str) -> Result<Vec<Branch>> {
3377    let mut branches = Vec::new();
3378    for line in input.split('\n') {
3379        if line.is_empty() {
3380            continue;
3381        }
3382        let mut fields = line.split('\x00');
3383        let Some(head) = fields.next() else {
3384            continue;
3385        };
3386        let Some(head_sha) = fields.next().map(|f| f.to_string().into()) else {
3387            continue;
3388        };
3389        let Some(parent_sha) = fields.next().map(|f| f.to_string()) else {
3390            continue;
3391        };
3392        let Some(ref_name) = fields.next().map(|f| f.to_string().into()) else {
3393            continue;
3394        };
3395        let Some(upstream_name) = fields.next().map(|f| f.to_string()) else {
3396            continue;
3397        };
3398        let Some(upstream_tracking) = fields.next().and_then(|f| parse_upstream_track(f).ok())
3399        else {
3400            continue;
3401        };
3402        let Some(commiterdate) = fields.next().and_then(|f| f.parse::<i64>().ok()) else {
3403            continue;
3404        };
3405        let Some(author_name) = fields.next().map(|f| f.to_string().into()) else {
3406            continue;
3407        };
3408        let Some(subject) = fields.next().map(|f| f.to_string().into()) else {
3409            continue;
3410        };
3411
3412        branches.push(Branch {
3413            is_head: head == "*",
3414            ref_name,
3415            most_recent_commit: Some(CommitSummary {
3416                sha: head_sha,
3417                subject,
3418                commit_timestamp: commiterdate,
3419                author_name: author_name,
3420                has_parent: !parent_sha.is_empty(),
3421            }),
3422            upstream: if upstream_name.is_empty() {
3423                None
3424            } else {
3425                Some(Upstream {
3426                    ref_name: upstream_name.into(),
3427                    tracking: upstream_tracking,
3428                })
3429            },
3430        })
3431    }
3432
3433    Ok(branches)
3434}
3435
3436fn parse_upstream_track(upstream_track: &str) -> Result<UpstreamTracking> {
3437    if upstream_track.is_empty() {
3438        return Ok(UpstreamTracking::Tracked(UpstreamTrackingStatus {
3439            ahead: 0,
3440            behind: 0,
3441        }));
3442    }
3443
3444    let upstream_track = upstream_track.strip_prefix("[").context("missing [")?;
3445    let upstream_track = upstream_track.strip_suffix("]").context("missing [")?;
3446    let mut ahead: u32 = 0;
3447    let mut behind: u32 = 0;
3448    for component in upstream_track.split(", ") {
3449        if component == "gone" {
3450            return Ok(UpstreamTracking::Gone);
3451        }
3452        if let Some(ahead_num) = component.strip_prefix("ahead ") {
3453            ahead = ahead_num.parse::<u32>()?;
3454        }
3455        if let Some(behind_num) = component.strip_prefix("behind ") {
3456            behind = behind_num.parse::<u32>()?;
3457        }
3458    }
3459    Ok(UpstreamTracking::Tracked(UpstreamTrackingStatus {
3460        ahead,
3461        behind,
3462    }))
3463}
3464
3465fn checkpoint_author_envs() -> HashMap<String, String> {
3466    HashMap::from_iter([
3467        ("GIT_AUTHOR_NAME".to_string(), "Zed".to_string()),
3468        ("GIT_AUTHOR_EMAIL".to_string(), "hi@zed.dev".to_string()),
3469        ("GIT_COMMITTER_NAME".to_string(), "Zed".to_string()),
3470        ("GIT_COMMITTER_EMAIL".to_string(), "hi@zed.dev".to_string()),
3471    ])
3472}
3473
3474#[cfg(test)]
3475mod tests {
3476    use super::*;
3477    use gpui::TestAppContext;
3478
3479    fn disable_git_global_config() {
3480        unsafe {
3481            std::env::set_var("GIT_CONFIG_GLOBAL", "");
3482            std::env::set_var("GIT_CONFIG_SYSTEM", "");
3483        }
3484    }
3485
3486    #[gpui::test]
3487    async fn test_checkpoint_basic(cx: &mut TestAppContext) {
3488        disable_git_global_config();
3489
3490        cx.executor().allow_parking();
3491
3492        let repo_dir = tempfile::tempdir().unwrap();
3493
3494        git2::Repository::init(repo_dir.path()).unwrap();
3495        let file_path = repo_dir.path().join("file");
3496        smol::fs::write(&file_path, "initial").await.unwrap();
3497
3498        let repo = RealGitRepository::new(
3499            &repo_dir.path().join(".git"),
3500            None,
3501            Some("git".into()),
3502            cx.executor(),
3503        )
3504        .unwrap();
3505
3506        repo.stage_paths(vec![repo_path("file")], Arc::new(HashMap::default()))
3507            .await
3508            .unwrap();
3509        repo.commit(
3510            "Initial commit".into(),
3511            None,
3512            CommitOptions::default(),
3513            AskPassDelegate::new(&mut cx.to_async(), |_, _, _| {}),
3514            Arc::new(checkpoint_author_envs()),
3515        )
3516        .await
3517        .unwrap();
3518
3519        smol::fs::write(&file_path, "modified before checkpoint")
3520            .await
3521            .unwrap();
3522        smol::fs::write(repo_dir.path().join("new_file_before_checkpoint"), "1")
3523            .await
3524            .unwrap();
3525        let checkpoint = repo.checkpoint().await.unwrap();
3526
3527        // Ensure the user can't see any branches after creating a checkpoint.
3528        assert_eq!(repo.branches().await.unwrap().len(), 1);
3529
3530        smol::fs::write(&file_path, "modified after checkpoint")
3531            .await
3532            .unwrap();
3533        repo.stage_paths(vec![repo_path("file")], Arc::new(HashMap::default()))
3534            .await
3535            .unwrap();
3536        repo.commit(
3537            "Commit after checkpoint".into(),
3538            None,
3539            CommitOptions::default(),
3540            AskPassDelegate::new(&mut cx.to_async(), |_, _, _| {}),
3541            Arc::new(checkpoint_author_envs()),
3542        )
3543        .await
3544        .unwrap();
3545
3546        smol::fs::remove_file(repo_dir.path().join("new_file_before_checkpoint"))
3547            .await
3548            .unwrap();
3549        smol::fs::write(repo_dir.path().join("new_file_after_checkpoint"), "2")
3550            .await
3551            .unwrap();
3552
3553        // Ensure checkpoint stays alive even after a Git GC.
3554        repo.gc().await.unwrap();
3555        repo.restore_checkpoint(checkpoint.clone()).await.unwrap();
3556
3557        assert_eq!(
3558            smol::fs::read_to_string(&file_path).await.unwrap(),
3559            "modified before checkpoint"
3560        );
3561        assert_eq!(
3562            smol::fs::read_to_string(repo_dir.path().join("new_file_before_checkpoint"))
3563                .await
3564                .unwrap(),
3565            "1"
3566        );
3567        // See TODO above
3568        // assert_eq!(
3569        //     smol::fs::read_to_string(repo_dir.path().join("new_file_after_checkpoint"))
3570        //         .await
3571        //         .ok(),
3572        //     None
3573        // );
3574    }
3575
3576    #[gpui::test]
3577    async fn test_checkpoint_empty_repo(cx: &mut TestAppContext) {
3578        disable_git_global_config();
3579
3580        cx.executor().allow_parking();
3581
3582        let repo_dir = tempfile::tempdir().unwrap();
3583        git2::Repository::init(repo_dir.path()).unwrap();
3584        let repo = RealGitRepository::new(
3585            &repo_dir.path().join(".git"),
3586            None,
3587            Some("git".into()),
3588            cx.executor(),
3589        )
3590        .unwrap();
3591
3592        smol::fs::write(repo_dir.path().join("foo"), "foo")
3593            .await
3594            .unwrap();
3595        let checkpoint_sha = repo.checkpoint().await.unwrap();
3596
3597        // Ensure the user can't see any branches after creating a checkpoint.
3598        assert_eq!(repo.branches().await.unwrap().len(), 1);
3599
3600        smol::fs::write(repo_dir.path().join("foo"), "bar")
3601            .await
3602            .unwrap();
3603        smol::fs::write(repo_dir.path().join("baz"), "qux")
3604            .await
3605            .unwrap();
3606        repo.restore_checkpoint(checkpoint_sha).await.unwrap();
3607        assert_eq!(
3608            smol::fs::read_to_string(repo_dir.path().join("foo"))
3609                .await
3610                .unwrap(),
3611            "foo"
3612        );
3613        // See TODOs above
3614        // assert_eq!(
3615        //     smol::fs::read_to_string(repo_dir.path().join("baz"))
3616        //         .await
3617        //         .ok(),
3618        //     None
3619        // );
3620    }
3621
3622    #[gpui::test]
3623    async fn test_compare_checkpoints(cx: &mut TestAppContext) {
3624        disable_git_global_config();
3625
3626        cx.executor().allow_parking();
3627
3628        let repo_dir = tempfile::tempdir().unwrap();
3629        git2::Repository::init(repo_dir.path()).unwrap();
3630        let repo = RealGitRepository::new(
3631            &repo_dir.path().join(".git"),
3632            None,
3633            Some("git".into()),
3634            cx.executor(),
3635        )
3636        .unwrap();
3637
3638        smol::fs::write(repo_dir.path().join("file1"), "content1")
3639            .await
3640            .unwrap();
3641        let checkpoint1 = repo.checkpoint().await.unwrap();
3642
3643        smol::fs::write(repo_dir.path().join("file2"), "content2")
3644            .await
3645            .unwrap();
3646        let checkpoint2 = repo.checkpoint().await.unwrap();
3647
3648        assert!(
3649            !repo
3650                .compare_checkpoints(checkpoint1, checkpoint2.clone())
3651                .await
3652                .unwrap()
3653        );
3654
3655        let checkpoint3 = repo.checkpoint().await.unwrap();
3656        assert!(
3657            repo.compare_checkpoints(checkpoint2, checkpoint3)
3658                .await
3659                .unwrap()
3660        );
3661    }
3662
3663    #[gpui::test]
3664    async fn test_checkpoint_exclude_binary_files(cx: &mut TestAppContext) {
3665        disable_git_global_config();
3666
3667        cx.executor().allow_parking();
3668
3669        let repo_dir = tempfile::tempdir().unwrap();
3670        let text_path = repo_dir.path().join("main.rs");
3671        let bin_path = repo_dir.path().join("binary.o");
3672
3673        git2::Repository::init(repo_dir.path()).unwrap();
3674
3675        smol::fs::write(&text_path, "fn main() {}").await.unwrap();
3676
3677        smol::fs::write(&bin_path, "some binary file here")
3678            .await
3679            .unwrap();
3680
3681        let repo = RealGitRepository::new(
3682            &repo_dir.path().join(".git"),
3683            None,
3684            Some("git".into()),
3685            cx.executor(),
3686        )
3687        .unwrap();
3688
3689        // initial commit
3690        repo.stage_paths(vec![repo_path("main.rs")], Arc::new(HashMap::default()))
3691            .await
3692            .unwrap();
3693        repo.commit(
3694            "Initial commit".into(),
3695            None,
3696            CommitOptions::default(),
3697            AskPassDelegate::new(&mut cx.to_async(), |_, _, _| {}),
3698            Arc::new(checkpoint_author_envs()),
3699        )
3700        .await
3701        .unwrap();
3702
3703        let checkpoint = repo.checkpoint().await.unwrap();
3704
3705        smol::fs::write(&text_path, "fn main() { println!(\"Modified\"); }")
3706            .await
3707            .unwrap();
3708        smol::fs::write(&bin_path, "Modified binary file")
3709            .await
3710            .unwrap();
3711
3712        repo.restore_checkpoint(checkpoint).await.unwrap();
3713
3714        // Text files should be restored to checkpoint state,
3715        // but binaries should not (they aren't tracked)
3716        assert_eq!(
3717            smol::fs::read_to_string(&text_path).await.unwrap(),
3718            "fn main() {}"
3719        );
3720
3721        assert_eq!(
3722            smol::fs::read_to_string(&bin_path).await.unwrap(),
3723            "Modified binary file"
3724        );
3725    }
3726
3727    #[test]
3728    fn test_branches_parsing() {
3729        // suppress "help: octal escapes are not supported, `\0` is always null"
3730        #[allow(clippy::octal_escapes)]
3731        let input = "*\0060964da10574cd9bf06463a53bf6e0769c5c45e\0\0refs/heads/zed-patches\0refs/remotes/origin/zed-patches\0\01733187470\0John Doe\0generated protobuf\n";
3732        assert_eq!(
3733            parse_branch_input(input).unwrap(),
3734            vec![Branch {
3735                is_head: true,
3736                ref_name: "refs/heads/zed-patches".into(),
3737                upstream: Some(Upstream {
3738                    ref_name: "refs/remotes/origin/zed-patches".into(),
3739                    tracking: UpstreamTracking::Tracked(UpstreamTrackingStatus {
3740                        ahead: 0,
3741                        behind: 0
3742                    })
3743                }),
3744                most_recent_commit: Some(CommitSummary {
3745                    sha: "060964da10574cd9bf06463a53bf6e0769c5c45e".into(),
3746                    subject: "generated protobuf".into(),
3747                    commit_timestamp: 1733187470,
3748                    author_name: SharedString::new_static("John Doe"),
3749                    has_parent: false,
3750                })
3751            }]
3752        )
3753    }
3754
3755    #[test]
3756    fn test_branches_parsing_containing_refs_with_missing_fields() {
3757        #[allow(clippy::octal_escapes)]
3758        let input = " \090012116c03db04344ab10d50348553aa94f1ea0\0refs/heads/broken\n \0eb0cae33272689bd11030822939dd2701c52f81e\0895951d681e5561478c0acdd6905e8aacdfd2249\0refs/heads/dev\0\0\01762948725\0Zed\0Add feature\n*\0895951d681e5561478c0acdd6905e8aacdfd2249\0\0refs/heads/main\0\0\01762948695\0Zed\0Initial commit\n";
3759
3760        let branches = parse_branch_input(input).unwrap();
3761        assert_eq!(branches.len(), 2);
3762        assert_eq!(
3763            branches,
3764            vec![
3765                Branch {
3766                    is_head: false,
3767                    ref_name: "refs/heads/dev".into(),
3768                    upstream: None,
3769                    most_recent_commit: Some(CommitSummary {
3770                        sha: "eb0cae33272689bd11030822939dd2701c52f81e".into(),
3771                        subject: "Add feature".into(),
3772                        commit_timestamp: 1762948725,
3773                        author_name: SharedString::new_static("Zed"),
3774                        has_parent: true,
3775                    })
3776                },
3777                Branch {
3778                    is_head: true,
3779                    ref_name: "refs/heads/main".into(),
3780                    upstream: None,
3781                    most_recent_commit: Some(CommitSummary {
3782                        sha: "895951d681e5561478c0acdd6905e8aacdfd2249".into(),
3783                        subject: "Initial commit".into(),
3784                        commit_timestamp: 1762948695,
3785                        author_name: SharedString::new_static("Zed"),
3786                        has_parent: false,
3787                    })
3788                }
3789            ]
3790        )
3791    }
3792
3793    #[test]
3794    fn test_upstream_branch_name() {
3795        let upstream = Upstream {
3796            ref_name: "refs/remotes/origin/feature/branch".into(),
3797            tracking: UpstreamTracking::Tracked(UpstreamTrackingStatus {
3798                ahead: 0,
3799                behind: 0,
3800            }),
3801        };
3802        assert_eq!(upstream.branch_name(), Some("feature/branch"));
3803
3804        let upstream = Upstream {
3805            ref_name: "refs/remotes/upstream/main".into(),
3806            tracking: UpstreamTracking::Tracked(UpstreamTrackingStatus {
3807                ahead: 0,
3808                behind: 0,
3809            }),
3810        };
3811        assert_eq!(upstream.branch_name(), Some("main"));
3812
3813        let upstream = Upstream {
3814            ref_name: "refs/heads/local".into(),
3815            tracking: UpstreamTracking::Tracked(UpstreamTrackingStatus {
3816                ahead: 0,
3817                behind: 0,
3818            }),
3819        };
3820        assert_eq!(upstream.branch_name(), None);
3821
3822        // Test case where upstream branch name differs from what might be the local branch name
3823        let upstream = Upstream {
3824            ref_name: "refs/remotes/origin/feature/git-pull-request".into(),
3825            tracking: UpstreamTracking::Tracked(UpstreamTrackingStatus {
3826                ahead: 0,
3827                behind: 0,
3828            }),
3829        };
3830        assert_eq!(upstream.branch_name(), Some("feature/git-pull-request"));
3831    }
3832
3833    #[test]
3834    fn test_parse_worktrees_from_str() {
3835        // Empty input
3836        let result = parse_worktrees_from_str("");
3837        assert!(result.is_empty());
3838
3839        // Single worktree (main)
3840        let input = "worktree /home/user/project\nHEAD abc123def\nbranch refs/heads/main\n\n";
3841        let result = parse_worktrees_from_str(input);
3842        assert_eq!(result.len(), 1);
3843        assert_eq!(result[0].path, PathBuf::from("/home/user/project"));
3844        assert_eq!(result[0].sha.as_ref(), "abc123def");
3845        assert_eq!(result[0].ref_name.as_ref(), "refs/heads/main");
3846
3847        // Multiple worktrees
3848        let input = "worktree /home/user/project\nHEAD abc123\nbranch refs/heads/main\n\n\
3849                      worktree /home/user/project-wt\nHEAD def456\nbranch refs/heads/feature\n\n";
3850        let result = parse_worktrees_from_str(input);
3851        assert_eq!(result.len(), 2);
3852        assert_eq!(result[0].path, PathBuf::from("/home/user/project"));
3853        assert_eq!(result[0].ref_name.as_ref(), "refs/heads/main");
3854        assert_eq!(result[1].path, PathBuf::from("/home/user/project-wt"));
3855        assert_eq!(result[1].ref_name.as_ref(), "refs/heads/feature");
3856
3857        // Detached HEAD entry (should be skipped since ref_name won't parse)
3858        let input = "worktree /home/user/project\nHEAD abc123\nbranch refs/heads/main\n\n\
3859                      worktree /home/user/detached\nHEAD def456\ndetached\n\n";
3860        let result = parse_worktrees_from_str(input);
3861        assert_eq!(result.len(), 1);
3862        assert_eq!(result[0].path, PathBuf::from("/home/user/project"));
3863
3864        // Bare repo entry (should be skipped)
3865        let input = "worktree /home/user/bare.git\nHEAD abc123\nbare\n\n\
3866                      worktree /home/user/project\nHEAD def456\nbranch refs/heads/main\n\n";
3867        let result = parse_worktrees_from_str(input);
3868        assert_eq!(result.len(), 1);
3869        assert_eq!(result[0].path, PathBuf::from("/home/user/project"));
3870
3871        // Extra porcelain lines (locked, prunable) should be ignored
3872        let input = "worktree /home/user/project\nHEAD abc123\nbranch refs/heads/main\n\n\
3873                      worktree /home/user/locked-wt\nHEAD def456\nbranch refs/heads/locked-branch\nlocked\n\n\
3874                      worktree /home/user/prunable-wt\nHEAD 789aaa\nbranch refs/heads/prunable-branch\nprunable\n\n";
3875        let result = parse_worktrees_from_str(input);
3876        assert_eq!(result.len(), 3);
3877        assert_eq!(result[0].path, PathBuf::from("/home/user/project"));
3878        assert_eq!(result[0].ref_name.as_ref(), "refs/heads/main");
3879        assert_eq!(result[1].path, PathBuf::from("/home/user/locked-wt"));
3880        assert_eq!(result[1].ref_name.as_ref(), "refs/heads/locked-branch");
3881        assert_eq!(result[2].path, PathBuf::from("/home/user/prunable-wt"));
3882        assert_eq!(result[2].ref_name.as_ref(), "refs/heads/prunable-branch");
3883
3884        // Leading/trailing whitespace on lines should be tolerated
3885        let input =
3886            "  worktree /home/user/project  \n  HEAD abc123  \n  branch refs/heads/main  \n\n";
3887        let result = parse_worktrees_from_str(input);
3888        assert_eq!(result.len(), 1);
3889        assert_eq!(result[0].path, PathBuf::from("/home/user/project"));
3890        assert_eq!(result[0].sha.as_ref(), "abc123");
3891        assert_eq!(result[0].ref_name.as_ref(), "refs/heads/main");
3892
3893        // Windows-style line endings should be handled
3894        let input = "worktree /home/user/project\r\nHEAD abc123\r\nbranch refs/heads/main\r\n\r\n";
3895        let result = parse_worktrees_from_str(input);
3896        assert_eq!(result.len(), 1);
3897        assert_eq!(result[0].path, PathBuf::from("/home/user/project"));
3898        assert_eq!(result[0].sha.as_ref(), "abc123");
3899        assert_eq!(result[0].ref_name.as_ref(), "refs/heads/main");
3900    }
3901
3902    const TEST_WORKTREE_DIRECTORIES: &[&str] =
3903        &["../worktrees", ".git/zed-worktrees", "my-worktrees/"];
3904
3905    #[gpui::test]
3906    async fn test_create_and_list_worktrees(cx: &mut TestAppContext) {
3907        disable_git_global_config();
3908        cx.executor().allow_parking();
3909
3910        for worktree_dir_setting in TEST_WORKTREE_DIRECTORIES {
3911            let repo_dir = tempfile::tempdir().unwrap();
3912            git2::Repository::init(repo_dir.path()).unwrap();
3913
3914            let repo = RealGitRepository::new(
3915                &repo_dir.path().join(".git"),
3916                None,
3917                Some("git".into()),
3918                cx.executor(),
3919            )
3920            .unwrap();
3921
3922            // Create an initial commit (required for worktrees)
3923            smol::fs::write(repo_dir.path().join("file.txt"), "content")
3924                .await
3925                .unwrap();
3926            repo.stage_paths(vec![repo_path("file.txt")], Arc::new(HashMap::default()))
3927                .await
3928                .unwrap();
3929            repo.commit(
3930                "Initial commit".into(),
3931                None,
3932                CommitOptions::default(),
3933                AskPassDelegate::new(&mut cx.to_async(), |_, _, _| {}),
3934                Arc::new(checkpoint_author_envs()),
3935            )
3936            .await
3937            .unwrap();
3938
3939            // List worktrees — should have just the main one
3940            let worktrees = repo.worktrees().await.unwrap();
3941            assert_eq!(worktrees.len(), 1);
3942            assert_eq!(
3943                worktrees[0].path.canonicalize().unwrap(),
3944                repo_dir.path().canonicalize().unwrap()
3945            );
3946
3947            // Create a new worktree
3948            repo.create_worktree(
3949                "test-branch".to_string(),
3950                resolve_worktree_directory(repo_dir.path(), worktree_dir_setting),
3951                Some("HEAD".to_string()),
3952            )
3953            .await
3954            .unwrap();
3955
3956            // List worktrees — should have two
3957            let worktrees = repo.worktrees().await.unwrap();
3958            assert_eq!(worktrees.len(), 2);
3959
3960            let expected_path =
3961                worktree_path_for_branch(repo_dir.path(), worktree_dir_setting, "test-branch");
3962            let new_worktree = worktrees
3963                .iter()
3964                .find(|w| w.branch() == "test-branch")
3965                .expect("should find worktree with test-branch");
3966            assert_eq!(
3967                new_worktree.path.canonicalize().unwrap(),
3968                expected_path.canonicalize().unwrap(),
3969                "failed for worktree_directory setting: {worktree_dir_setting:?}"
3970            );
3971
3972            // Clean up so the next iteration starts fresh
3973            repo.remove_worktree(expected_path, true).await.unwrap();
3974
3975            // Clean up the worktree base directory if it was created outside repo_dir
3976            // (e.g. for the "../worktrees" setting, it won't be inside the TempDir)
3977            let resolved_dir = resolve_worktree_directory(repo_dir.path(), worktree_dir_setting);
3978            if !resolved_dir.starts_with(repo_dir.path()) {
3979                let _ = std::fs::remove_dir_all(&resolved_dir);
3980            }
3981        }
3982    }
3983
3984    #[gpui::test]
3985    async fn test_remove_worktree(cx: &mut TestAppContext) {
3986        disable_git_global_config();
3987        cx.executor().allow_parking();
3988
3989        for worktree_dir_setting in TEST_WORKTREE_DIRECTORIES {
3990            let repo_dir = tempfile::tempdir().unwrap();
3991            git2::Repository::init(repo_dir.path()).unwrap();
3992
3993            let repo = RealGitRepository::new(
3994                &repo_dir.path().join(".git"),
3995                None,
3996                Some("git".into()),
3997                cx.executor(),
3998            )
3999            .unwrap();
4000
4001            // Create an initial commit
4002            smol::fs::write(repo_dir.path().join("file.txt"), "content")
4003                .await
4004                .unwrap();
4005            repo.stage_paths(vec![repo_path("file.txt")], Arc::new(HashMap::default()))
4006                .await
4007                .unwrap();
4008            repo.commit(
4009                "Initial commit".into(),
4010                None,
4011                CommitOptions::default(),
4012                AskPassDelegate::new(&mut cx.to_async(), |_, _, _| {}),
4013                Arc::new(checkpoint_author_envs()),
4014            )
4015            .await
4016            .unwrap();
4017
4018            // Create a worktree
4019            repo.create_worktree(
4020                "to-remove".to_string(),
4021                resolve_worktree_directory(repo_dir.path(), worktree_dir_setting),
4022                Some("HEAD".to_string()),
4023            )
4024            .await
4025            .unwrap();
4026
4027            let worktree_path =
4028                worktree_path_for_branch(repo_dir.path(), worktree_dir_setting, "to-remove");
4029            assert!(worktree_path.exists());
4030
4031            // Remove the worktree
4032            repo.remove_worktree(worktree_path.clone(), false)
4033                .await
4034                .unwrap();
4035
4036            // Verify it's gone from the list
4037            let worktrees = repo.worktrees().await.unwrap();
4038            assert_eq!(worktrees.len(), 1);
4039            assert!(
4040                worktrees.iter().all(|w| w.branch() != "to-remove"),
4041                "removed worktree should not appear in list"
4042            );
4043
4044            // Verify the directory is removed
4045            assert!(!worktree_path.exists());
4046
4047            // Clean up the worktree base directory if it was created outside repo_dir
4048            // (e.g. for the "../worktrees" setting, it won't be inside the TempDir)
4049            let resolved_dir = resolve_worktree_directory(repo_dir.path(), worktree_dir_setting);
4050            if !resolved_dir.starts_with(repo_dir.path()) {
4051                let _ = std::fs::remove_dir_all(&resolved_dir);
4052            }
4053        }
4054    }
4055
4056    #[gpui::test]
4057    async fn test_remove_worktree_force(cx: &mut TestAppContext) {
4058        disable_git_global_config();
4059        cx.executor().allow_parking();
4060
4061        for worktree_dir_setting in TEST_WORKTREE_DIRECTORIES {
4062            let repo_dir = tempfile::tempdir().unwrap();
4063            git2::Repository::init(repo_dir.path()).unwrap();
4064
4065            let repo = RealGitRepository::new(
4066                &repo_dir.path().join(".git"),
4067                None,
4068                Some("git".into()),
4069                cx.executor(),
4070            )
4071            .unwrap();
4072
4073            // Create an initial commit
4074            smol::fs::write(repo_dir.path().join("file.txt"), "content")
4075                .await
4076                .unwrap();
4077            repo.stage_paths(vec![repo_path("file.txt")], Arc::new(HashMap::default()))
4078                .await
4079                .unwrap();
4080            repo.commit(
4081                "Initial commit".into(),
4082                None,
4083                CommitOptions::default(),
4084                AskPassDelegate::new(&mut cx.to_async(), |_, _, _| {}),
4085                Arc::new(checkpoint_author_envs()),
4086            )
4087            .await
4088            .unwrap();
4089
4090            // Create a worktree
4091            repo.create_worktree(
4092                "dirty-wt".to_string(),
4093                resolve_worktree_directory(repo_dir.path(), worktree_dir_setting),
4094                Some("HEAD".to_string()),
4095            )
4096            .await
4097            .unwrap();
4098
4099            let worktree_path =
4100                worktree_path_for_branch(repo_dir.path(), worktree_dir_setting, "dirty-wt");
4101
4102            // Add uncommitted changes in the worktree
4103            smol::fs::write(worktree_path.join("dirty-file.txt"), "uncommitted")
4104                .await
4105                .unwrap();
4106
4107            // Non-force removal should fail with dirty worktree
4108            let result = repo.remove_worktree(worktree_path.clone(), false).await;
4109            assert!(
4110                result.is_err(),
4111                "non-force removal of dirty worktree should fail"
4112            );
4113
4114            // Force removal should succeed
4115            repo.remove_worktree(worktree_path.clone(), true)
4116                .await
4117                .unwrap();
4118
4119            let worktrees = repo.worktrees().await.unwrap();
4120            assert_eq!(worktrees.len(), 1);
4121            assert!(!worktree_path.exists());
4122
4123            // Clean up the worktree base directory if it was created outside repo_dir
4124            // (e.g. for the "../worktrees" setting, it won't be inside the TempDir)
4125            let resolved_dir = resolve_worktree_directory(repo_dir.path(), worktree_dir_setting);
4126            if !resolved_dir.starts_with(repo_dir.path()) {
4127                let _ = std::fs::remove_dir_all(&resolved_dir);
4128            }
4129        }
4130    }
4131
4132    #[gpui::test]
4133    async fn test_rename_worktree(cx: &mut TestAppContext) {
4134        disable_git_global_config();
4135        cx.executor().allow_parking();
4136
4137        for worktree_dir_setting in TEST_WORKTREE_DIRECTORIES {
4138            let repo_dir = tempfile::tempdir().unwrap();
4139            git2::Repository::init(repo_dir.path()).unwrap();
4140
4141            let repo = RealGitRepository::new(
4142                &repo_dir.path().join(".git"),
4143                None,
4144                Some("git".into()),
4145                cx.executor(),
4146            )
4147            .unwrap();
4148
4149            // Create an initial commit
4150            smol::fs::write(repo_dir.path().join("file.txt"), "content")
4151                .await
4152                .unwrap();
4153            repo.stage_paths(vec![repo_path("file.txt")], Arc::new(HashMap::default()))
4154                .await
4155                .unwrap();
4156            repo.commit(
4157                "Initial commit".into(),
4158                None,
4159                CommitOptions::default(),
4160                AskPassDelegate::new(&mut cx.to_async(), |_, _, _| {}),
4161                Arc::new(checkpoint_author_envs()),
4162            )
4163            .await
4164            .unwrap();
4165
4166            // Create a worktree
4167            repo.create_worktree(
4168                "old-name".to_string(),
4169                resolve_worktree_directory(repo_dir.path(), worktree_dir_setting),
4170                Some("HEAD".to_string()),
4171            )
4172            .await
4173            .unwrap();
4174
4175            let old_path =
4176                worktree_path_for_branch(repo_dir.path(), worktree_dir_setting, "old-name");
4177            assert!(old_path.exists());
4178
4179            // Move the worktree to a new path
4180            let new_path =
4181                resolve_worktree_directory(repo_dir.path(), worktree_dir_setting).join("new-name");
4182            repo.rename_worktree(old_path.clone(), new_path.clone())
4183                .await
4184                .unwrap();
4185
4186            // Verify the old path is gone and new path exists
4187            assert!(!old_path.exists());
4188            assert!(new_path.exists());
4189
4190            // Verify it shows up in worktree list at the new path
4191            let worktrees = repo.worktrees().await.unwrap();
4192            assert_eq!(worktrees.len(), 2);
4193            let moved_worktree = worktrees
4194                .iter()
4195                .find(|w| w.branch() == "old-name")
4196                .expect("should find worktree by branch name");
4197            assert_eq!(
4198                moved_worktree.path.canonicalize().unwrap(),
4199                new_path.canonicalize().unwrap()
4200            );
4201
4202            // Clean up so the next iteration starts fresh
4203            repo.remove_worktree(new_path, true).await.unwrap();
4204
4205            // Clean up the worktree base directory if it was created outside repo_dir
4206            // (e.g. for the "../worktrees" setting, it won't be inside the TempDir)
4207            let resolved_dir = resolve_worktree_directory(repo_dir.path(), worktree_dir_setting);
4208            if !resolved_dir.starts_with(repo_dir.path()) {
4209                let _ = std::fs::remove_dir_all(&resolved_dir);
4210            }
4211        }
4212    }
4213
4214    #[test]
4215    fn test_resolve_worktree_directory() {
4216        let work_dir = Path::new("/code/my-project");
4217
4218        // Sibling directory — outside project, so repo dir name is appended
4219        assert_eq!(
4220            resolve_worktree_directory(work_dir, "../worktrees"),
4221            PathBuf::from("/code/worktrees/my-project")
4222        );
4223
4224        // Git subdir — inside project, no repo name appended
4225        assert_eq!(
4226            resolve_worktree_directory(work_dir, ".git/zed-worktrees"),
4227            PathBuf::from("/code/my-project/.git/zed-worktrees")
4228        );
4229
4230        // Simple subdir — inside project, no repo name appended
4231        assert_eq!(
4232            resolve_worktree_directory(work_dir, "my-worktrees"),
4233            PathBuf::from("/code/my-project/my-worktrees")
4234        );
4235
4236        // Trailing slash is stripped
4237        assert_eq!(
4238            resolve_worktree_directory(work_dir, "../worktrees/"),
4239            PathBuf::from("/code/worktrees/my-project")
4240        );
4241        assert_eq!(
4242            resolve_worktree_directory(work_dir, "my-worktrees/"),
4243            PathBuf::from("/code/my-project/my-worktrees")
4244        );
4245
4246        // Multiple trailing slashes
4247        assert_eq!(
4248            resolve_worktree_directory(work_dir, "foo///"),
4249            PathBuf::from("/code/my-project/foo")
4250        );
4251
4252        // Trailing backslashes (Windows-style)
4253        assert_eq!(
4254            resolve_worktree_directory(work_dir, "my-worktrees\\"),
4255            PathBuf::from("/code/my-project/my-worktrees")
4256        );
4257        assert_eq!(
4258            resolve_worktree_directory(work_dir, "foo\\/\\"),
4259            PathBuf::from("/code/my-project/foo")
4260        );
4261
4262        // Empty string resolves to the working directory itself (inside)
4263        assert_eq!(
4264            resolve_worktree_directory(work_dir, ""),
4265            PathBuf::from("/code/my-project")
4266        );
4267
4268        // Just ".." — outside project, repo dir name appended
4269        assert_eq!(
4270            resolve_worktree_directory(work_dir, ".."),
4271            PathBuf::from("/code/my-project")
4272        );
4273    }
4274
4275    #[test]
4276    fn test_validate_worktree_directory() {
4277        let work_dir = Path::new("/code/my-project");
4278
4279        // Valid: sibling
4280        assert!(validate_worktree_directory(work_dir, "../worktrees").is_ok());
4281
4282        // Valid: subdirectory
4283        assert!(validate_worktree_directory(work_dir, ".git/zed-worktrees").is_ok());
4284        assert!(validate_worktree_directory(work_dir, "my-worktrees").is_ok());
4285
4286        // Invalid: just ".." would resolve back to the working directory itself
4287        let err = validate_worktree_directory(work_dir, "..").unwrap_err();
4288        assert!(err.to_string().contains("must not be \"..\""));
4289
4290        // Invalid: ".." with trailing separators
4291        let err = validate_worktree_directory(work_dir, "..\\").unwrap_err();
4292        assert!(err.to_string().contains("must not be \"..\""));
4293        let err = validate_worktree_directory(work_dir, "../").unwrap_err();
4294        assert!(err.to_string().contains("must not be \"..\""));
4295
4296        // Invalid: empty string would resolve to the working directory itself
4297        let err = validate_worktree_directory(work_dir, "").unwrap_err();
4298        assert!(err.to_string().contains("must not be empty"));
4299
4300        // Invalid: absolute path
4301        let err = validate_worktree_directory(work_dir, "/tmp/worktrees").unwrap_err();
4302        assert!(err.to_string().contains("relative path"));
4303
4304        // Invalid: "/" is absolute on Unix
4305        let err = validate_worktree_directory(work_dir, "/").unwrap_err();
4306        assert!(err.to_string().contains("relative path"));
4307
4308        // Invalid: "///" is absolute
4309        let err = validate_worktree_directory(work_dir, "///").unwrap_err();
4310        assert!(err.to_string().contains("relative path"));
4311
4312        // Invalid: escapes too far up
4313        let err = validate_worktree_directory(work_dir, "../../other-project/wt").unwrap_err();
4314        assert!(err.to_string().contains("outside"));
4315    }
4316
4317    #[test]
4318    fn test_worktree_path_for_branch() {
4319        let work_dir = Path::new("/code/my-project");
4320
4321        // Outside project — repo dir name is part of the resolved directory
4322        assert_eq!(
4323            worktree_path_for_branch(work_dir, "../worktrees", "feature/foo"),
4324            PathBuf::from("/code/worktrees/my-project/feature/foo")
4325        );
4326
4327        // Inside project — no repo dir name inserted
4328        assert_eq!(
4329            worktree_path_for_branch(work_dir, ".git/zed-worktrees", "my-branch"),
4330            PathBuf::from("/code/my-project/.git/zed-worktrees/my-branch")
4331        );
4332
4333        // Trailing slash on setting (inside project)
4334        assert_eq!(
4335            worktree_path_for_branch(work_dir, "my-worktrees/", "branch"),
4336            PathBuf::from("/code/my-project/my-worktrees/branch")
4337        );
4338    }
4339
4340    impl RealGitRepository {
4341        /// Force a Git garbage collection on the repository.
4342        fn gc(&self) -> BoxFuture<'_, Result<()>> {
4343            let working_directory = self.working_directory();
4344            let git_binary_path = self.any_git_binary_path.clone();
4345            let executor = self.executor.clone();
4346            self.executor
4347                .spawn(async move {
4348                    let git_binary_path = git_binary_path.clone();
4349                    let working_directory = working_directory?;
4350                    let git = GitBinary::new(git_binary_path, working_directory, executor);
4351                    git.run(&["gc", "--prune"]).await?;
4352                    Ok(())
4353                })
4354                .boxed()
4355        }
4356    }
4357}