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WIP, re-doing fs and fake git repos

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This commit is contained in:
Mikayla Maki 2022-09-28 11:42:22 -07:00 committed by Julia
parent d5fd531743
commit 71b2126eca
7 changed files with 145 additions and 50 deletions
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1
Cargo.lock generated
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@ -2230,6 +2230,7 @@ name = "git"
version = "0.1.0"
dependencies = [
"anyhow",
"async-trait",
"clock",
"git2",
"lazy_static",

2
crates/git/Cargo.toml
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@ -17,6 +17,8 @@ util = { path = "../util" }
log = { version = "0.4.16", features = ["kv_unstable_serde"] }
smol = "1.2"
parking_lot = "0.11.1"
async-trait = "0.1"
[dev-dependencies]
unindent = "0.1.7"

123
crates/git/src/repository.rs
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@ -4,8 +4,29 @@ use parking_lot::Mutex;
use std::{path::Path, sync::Arc};
use util::ResultExt;
#[async_trait::async_trait]
pub trait GitRepository: Send + Sync + std::fmt::Debug {
fn manages(&self, path: &Path) -> bool;
fn in_dot_git(&self, path: &Path) -> bool;
fn content_path(&self) -> &Path;
fn git_dir_path(&self) -> &Path;
fn scan_id(&self) -> usize;
fn set_scan_id(&mut self, scan_id: usize);
fn git_repo(&self) -> Arc<Mutex<LibGitRepository>>;
fn boxed_clone(&self) -> Box<dyn GitRepository>;
async fn load_head_text(&self, relative_file_path: &Path) -> Option<String>;
}
#[derive(Clone)]
pub struct GitRepository {
pub struct RealGitRepository {
// Path to folder containing the .git file or directory
content_path: Arc<Path>,
// Path to the actual .git folder.
@ -15,50 +36,48 @@ pub struct GitRepository {
libgit_repository: Arc<Mutex<LibGitRepository>>,
}
impl GitRepository {
pub fn open(dotgit_path: &Path) -> Option<GitRepository> {
impl RealGitRepository {
pub fn open(dotgit_path: &Path) -> Option<Box<dyn GitRepository>> {
LibGitRepository::open(&dotgit_path)
.log_err()
.and_then(|libgit_repository| {
Some(Self {
.and_then::<Box<dyn GitRepository>, _>(|libgit_repository| {
Some(Box::new(Self {
content_path: libgit_repository.workdir()?.into(),
git_dir_path: dotgit_path.canonicalize().log_err()?.into(),
scan_id: 0,
libgit_repository: Arc::new(parking_lot::Mutex::new(libgit_repository)),
})
}))
})
}
}
pub fn manages(&self, path: &Path) -> bool {
#[async_trait::async_trait]
impl GitRepository for RealGitRepository {
fn manages(&self, path: &Path) -> bool {
path.canonicalize()
.map(|path| path.starts_with(&self.content_path))
.unwrap_or(false)
}
pub fn in_dot_git(&self, path: &Path) -> bool {
fn in_dot_git(&self, path: &Path) -> bool {
path.canonicalize()
.map(|path| path.starts_with(&self.git_dir_path))
.unwrap_or(false)
}
pub fn content_path(&self) -> &Path {
fn content_path(&self) -> &Path {
self.content_path.as_ref()
}
pub fn git_dir_path(&self) -> &Path {
fn git_dir_path(&self) -> &Path {
self.git_dir_path.as_ref()
}
pub fn scan_id(&self) -> usize {
fn scan_id(&self) -> usize {
self.scan_id
}
pub fn set_scan_id(&mut self, scan_id: usize) {
println!("setting scan id");
self.scan_id = scan_id;
}
pub async fn load_head_text(&self, relative_file_path: &Path) -> Option<String> {
async fn load_head_text(&self, relative_file_path: &Path) -> Option<String> {
fn logic(repo: &LibGitRepository, relative_file_path: &Path) -> Result<Option<String>> {
let object = repo
.head()?
@ -81,9 +100,21 @@ impl GitRepository {
}
None
}
fn git_repo(&self) -> Arc<Mutex<LibGitRepository>> {
self.libgit_repository.clone()
}
fn set_scan_id(&mut self, scan_id: usize) {
self.scan_id = scan_id;
}
fn boxed_clone(&self) -> Box<dyn GitRepository> {
Box::new(self.clone())
}
}
impl std::fmt::Debug for GitRepository {
impl std::fmt::Debug for RealGitRepository {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_struct("GitRepository")
.field("content_path", &self.content_path)
@ -93,3 +124,59 @@ impl std::fmt::Debug for GitRepository {
.finish()
}
}
#[derive(Debug, Clone)]
pub struct FakeGitRepository {
content_path: Arc<Path>,
git_dir_path: Arc<Path>,
scan_id: usize,
}
impl FakeGitRepository {
pub fn open(dotgit_path: &Path, scan_id: usize) -> Box<dyn GitRepository> {
Box::new(FakeGitRepository {
content_path: dotgit_path.parent().unwrap().into(),
git_dir_path: dotgit_path.into(),
scan_id,
})
}
}
#[async_trait::async_trait]
impl GitRepository for FakeGitRepository {
fn manages(&self, path: &Path) -> bool {
path.starts_with(self.content_path())
}
fn in_dot_git(&self, path: &Path) -> bool {
path.starts_with(self.git_dir_path())
}
fn content_path(&self) -> &Path {
&self.content_path
}
fn git_dir_path(&self) -> &Path {
&self.git_dir_path
}
fn scan_id(&self) -> usize {
self.scan_id
}
async fn load_head_text(&self, _: &Path) -> Option<String> {
unimplemented!()
}
fn git_repo(&self) -> Arc<Mutex<LibGitRepository>> {
unimplemented!()
}
fn set_scan_id(&mut self, scan_id: usize) {
self.scan_id = scan_id;
}
fn boxed_clone(&self) -> Box<dyn GitRepository> {
Box::new(self.clone())
}
}

1
crates/language/src/buffer.rs
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@ -672,7 +672,6 @@ impl Buffer {
}
pub fn git_diff_recalc(&mut self, cx: &mut ModelContext<Self>) {
println!("recalc");
if self.git_diff_status.update_in_progress {
self.git_diff_status.update_requested = true;
return;

10
crates/project/src/fs.rs
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@ -1,6 +1,7 @@
use anyhow::{anyhow, Result};
use fsevent::EventStream;
use futures::{future::BoxFuture, Stream, StreamExt};
use git::repository::{FakeGitRepository, GitRepository, RealGitRepository};
use language::LineEnding;
use smol::io::{AsyncReadExt, AsyncWriteExt};
use std::{
@ -43,6 +44,7 @@ pub trait Fs: Send + Sync {
path: &Path,
latency: Duration,
) -> Pin<Box<dyn Send + Stream<Item = Vec<fsevent::Event>>>>;
async fn open_repo(&self, abs_dot_git: &Path) -> Option<Box<dyn GitRepository>>;
fn is_fake(&self) -> bool;
#[cfg(any(test, feature = "test-support"))]
fn as_fake(&self) -> &FakeFs;
@ -236,6 +238,10 @@ impl Fs for RealFs {
})))
}
fn open_repo(&self, abs_dot_git: &Path) -> Option<Box<dyn GitRepository>> {
RealGitRepository::open(&abs_dot_git)
}
fn is_fake(&self) -> bool {
false
}
@ -847,6 +853,10 @@ impl Fs for FakeFs {
}))
}
fn open_repo(&self, abs_dot_git: &Path) -> Option<Box<dyn GitRepository>> {
Some(FakeGitRepository::open(abs_dot_git.into(), 0))
}
fn is_fake(&self) -> bool {
true
}

8
crates/project/src/project.rs
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@ -4537,7 +4537,6 @@ impl Project {
cx.subscribe(worktree, |this, worktree, event, cx| match event {
worktree::Event::UpdatedEntries => this.update_local_worktree_buffers(worktree, cx),
worktree::Event::UpdatedGitRepositories(updated_repos) => {
println!("{updated_repos:#?}");
this.update_local_worktree_buffers_git_repos(updated_repos, cx)
}
})
@ -4649,7 +4648,7 @@ impl Project {
fn update_local_worktree_buffers_git_repos(
&mut self,
repos: &[GitRepository],
repos: &[Box<dyn GitRepository>],
cx: &mut ModelContext<Self>,
) {
//TODO: Produce protos
@ -4662,18 +4661,15 @@ impl Project {
};
let path = file.path().clone();
let abs_path = file.abs_path(cx);
println!("got file");
let repo = match repos.iter().find(|repo| repo.manages(&abs_path)) {
Some(repo) => repo.clone(),
Some(repo) => repo.boxed_clone(),
None => return,
};
println!("got repo");
cx.spawn(|_, mut cx| async move {
let head_text = repo.load_head_text(&path).await;
buffer.update(&mut cx, |buffer, cx| {
println!("got calling update");
buffer.update_head_text(head_text, cx);
});
})

50
crates/project/src/worktree.rs
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@ -100,7 +100,7 @@ pub struct Snapshot {
pub struct LocalSnapshot {
abs_path: Arc<Path>,
ignores_by_parent_abs_path: HashMap<Arc<Path>, (Arc<Gitignore>, usize)>,
git_repositories: Vec<GitRepository>,
git_repositories: Vec<Box<dyn GitRepository>>,
removed_entry_ids: HashMap<u64, ProjectEntryId>,
next_entry_id: Arc<AtomicUsize>,
snapshot: Snapshot,
@ -115,7 +115,7 @@ impl Clone for LocalSnapshot {
git_repositories: self
.git_repositories
.iter()
.map(|repo| repo.clone())
.map(|repo| repo.boxed_clone())
.collect(),
removed_entry_ids: self.removed_entry_ids.clone(),
next_entry_id: self.next_entry_id.clone(),
@ -157,7 +157,7 @@ struct ShareState {
pub enum Event {
UpdatedEntries,
UpdatedGitRepositories(Vec<GitRepository>),
UpdatedGitRepositories(Vec<Box<dyn GitRepository>>),
}
impl Entity for Worktree {
@ -581,16 +581,13 @@ impl LocalWorktree {
}
fn list_updated_repos(
old_repos: &[GitRepository],
new_repos: &[GitRepository],
) -> Vec<GitRepository> {
println!("old repos: {:#?}", old_repos);
println!("new repos: {:#?}", new_repos);
old_repos: &[Box<dyn GitRepository>],
new_repos: &[Box<dyn GitRepository>],
) -> Vec<Box<dyn GitRepository>> {
fn diff<'a>(
a: &'a [GitRepository],
b: &'a [GitRepository],
updated: &mut HashMap<&'a Path, GitRepository>,
a: &'a [Box<dyn GitRepository>],
b: &'a [Box<dyn GitRepository>],
updated: &mut HashMap<&'a Path, Box<dyn GitRepository>>,
) {
for a_repo in a {
let matched = b.iter().find(|b_repo| {
@ -599,17 +596,17 @@ impl LocalWorktree {
});
if matched.is_some() {
updated.insert(a_repo.git_dir_path(), a_repo.clone());
updated.insert(a_repo.git_dir_path(), a_repo.boxed_clone());
}
}
}
let mut updated = HashMap::<&Path, GitRepository>::default();
let mut updated = HashMap::<&Path, Box<dyn GitRepository>>::default();
diff(old_repos, new_repos, &mut updated);
diff(new_repos, old_repos, &mut updated);
dbg!(updated.into_values().collect())
updated.into_values().collect()
}
pub fn scan_complete(&self) -> impl Future<Output = ()> {
@ -1364,23 +1361,22 @@ impl LocalSnapshot {
}
// Gives the most specific git repository for a given path
pub(crate) fn repo_for(&self, path: &Path) -> Option<GitRepository> {
pub(crate) fn repo_for(&self, path: &Path) -> Option<Box<dyn GitRepository>> {
self.git_repositories
.iter()
.rev() //git_repository is ordered lexicographically
.find(|repo| repo.manages(&self.abs_path.join(path)))
.map(|repo| repo.clone())
.map(|repo| repo.boxed_clone())
}
pub(crate) fn in_dot_git(&mut self, path: &Path) -> Option<&mut GitRepository> {
println!("chechking {path:?}");
pub(crate) fn in_dot_git(&mut self, path: &Path) -> Option<&mut Box<dyn GitRepository>> {
self.git_repositories
.iter_mut()
.rev() //git_repository is ordered lexicographically
.find(|repo| repo.in_dot_git(&self.abs_path.join(path)))
}
pub(crate) fn tracks_filepath(&self, repo: &GitRepository, file_path: &Path) -> bool {
pub(crate) fn _tracks_filepath(&self, repo: &dyn GitRepository, file_path: &Path) -> bool {
// Depends on git_repository_for_file_path returning the most specific git repository for a given path
self.repo_for(&self.abs_path.join(file_path))
.map_or(false, |r| r.git_dir_path() == repo.git_dir_path())
@ -1522,6 +1518,7 @@ impl LocalSnapshot {
parent_path: Arc<Path>,
entries: impl IntoIterator<Item = Entry>,
ignore: Option<Arc<Gitignore>>,
fs: &dyn Fs,
) {
let mut parent_entry = if let Some(parent_entry) =
self.entries_by_path.get(&PathKey(parent_path.clone()), &())
@ -1553,7 +1550,7 @@ impl LocalSnapshot {
.git_repositories
.binary_search_by_key(&abs_path.as_path(), |repo| repo.git_dir_path())
{
if let Some(repository) = GitRepository::open(&abs_path) {
if let Some(repository) = fs.open_repo(abs_path.as_path()) {
self.git_repositories.insert(ix, repository);
}
}
@ -2402,9 +2399,12 @@ impl BackgroundScanner {
new_entries.push(child_entry);
}
self.snapshot
.lock()
.populate_dir(job.path.clone(), new_entries, new_ignore);
self.snapshot.lock().populate_dir(
job.path.clone(),
new_entries,
new_ignore,
self.fs.as_ref(),
);
for new_job in new_jobs {
job.scan_queue.send(new_job).await.unwrap();
}
@ -2602,7 +2602,7 @@ impl BackgroundScanner {
let new_repos = snapshot
.git_repositories
.iter()
.cloned()
.map(|repo| repo.boxed_clone())
.filter(|repo| git::libgit::Repository::open(repo.git_dir_path()).is_ok())
.collect();