1516 lines
48 KiB
Rust
1516 lines
48 KiB
Rust
mod char_bag;
|
|
mod fuzzy;
|
|
|
|
use crate::{
|
|
editor::{History, Snapshot as BufferSnapshot},
|
|
sum_tree::{self, Cursor, Edit, SeekBias, SumTree},
|
|
};
|
|
use anyhow::{anyhow, Context, Result};
|
|
pub use fuzzy::{match_paths, PathMatch};
|
|
use gpui::{scoped_pool, AppContext, Entity, ModelContext, ModelHandle, Task};
|
|
use ignore::gitignore::Gitignore;
|
|
use lazy_static::lazy_static;
|
|
use parking_lot::Mutex;
|
|
use postage::{
|
|
prelude::{Sink, Stream},
|
|
watch,
|
|
};
|
|
use smol::{channel::Sender, Timer};
|
|
use std::{
|
|
cmp,
|
|
collections::{BTreeMap, HashSet},
|
|
ffi::{CStr, OsStr},
|
|
fmt, fs,
|
|
future::Future,
|
|
io::{self, Read, Write},
|
|
mem,
|
|
ops::{AddAssign, Deref},
|
|
os::unix::{ffi::OsStrExt, fs::MetadataExt},
|
|
path::{Path, PathBuf},
|
|
sync::Arc,
|
|
time::Duration,
|
|
};
|
|
|
|
use self::char_bag::CharBag;
|
|
|
|
lazy_static! {
|
|
static ref GITIGNORE: &'static OsStr = OsStr::new(".gitignore");
|
|
}
|
|
|
|
#[derive(Clone, Debug)]
|
|
enum ScanState {
|
|
Idle,
|
|
Scanning,
|
|
Err(Arc<io::Error>),
|
|
}
|
|
|
|
pub struct Worktree {
|
|
snapshot: Snapshot,
|
|
background_snapshot: Arc<Mutex<Snapshot>>,
|
|
scan_state: (watch::Sender<ScanState>, watch::Receiver<ScanState>),
|
|
_event_stream_handle: fsevent::Handle,
|
|
poll_scheduled: bool,
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct FileHandle {
|
|
worktree: ModelHandle<Worktree>,
|
|
path: Arc<Path>,
|
|
}
|
|
|
|
impl Worktree {
|
|
pub fn new(path: impl Into<Arc<Path>>, ctx: &mut ModelContext<Self>) -> Self {
|
|
let abs_path = path.into();
|
|
let root_name_chars = abs_path.file_name().map_or(Vec::new(), |n| {
|
|
n.to_string_lossy().chars().chain(Some('/')).collect()
|
|
});
|
|
let (scan_state_tx, scan_state_rx) = smol::channel::unbounded();
|
|
let id = ctx.model_id();
|
|
let snapshot = Snapshot {
|
|
id,
|
|
scan_id: 0,
|
|
abs_path,
|
|
root_name_chars,
|
|
ignores: Default::default(),
|
|
entries: Default::default(),
|
|
};
|
|
let (event_stream, event_stream_handle) =
|
|
fsevent::EventStream::new(&[snapshot.abs_path.as_ref()], Duration::from_millis(100));
|
|
|
|
let background_snapshot = Arc::new(Mutex::new(snapshot.clone()));
|
|
|
|
let tree = Self {
|
|
snapshot,
|
|
background_snapshot: background_snapshot.clone(),
|
|
scan_state: watch::channel_with(ScanState::Scanning),
|
|
_event_stream_handle: event_stream_handle,
|
|
poll_scheduled: false,
|
|
};
|
|
|
|
std::thread::spawn(move || {
|
|
let scanner = BackgroundScanner::new(background_snapshot, scan_state_tx, id);
|
|
scanner.run(event_stream)
|
|
});
|
|
|
|
ctx.spawn_stream(scan_state_rx, Self::observe_scan_state, |_, _| {})
|
|
.detach();
|
|
|
|
tree
|
|
}
|
|
|
|
pub fn scan_complete(&self) -> impl Future<Output = ()> {
|
|
let mut scan_state_rx = self.scan_state.1.clone();
|
|
async move {
|
|
let mut scan_state = Some(scan_state_rx.borrow().clone());
|
|
while let Some(ScanState::Scanning) = scan_state {
|
|
scan_state = scan_state_rx.recv().await;
|
|
}
|
|
}
|
|
}
|
|
|
|
pub fn next_scan_complete(&self) -> impl Future<Output = ()> {
|
|
let mut scan_state_rx = self.scan_state.1.clone();
|
|
let mut did_scan = matches!(*scan_state_rx.borrow(), ScanState::Scanning);
|
|
async move {
|
|
loop {
|
|
if let ScanState::Scanning = *scan_state_rx.borrow() {
|
|
did_scan = true;
|
|
} else if did_scan {
|
|
break;
|
|
}
|
|
scan_state_rx.recv().await;
|
|
}
|
|
}
|
|
}
|
|
|
|
fn observe_scan_state(&mut self, scan_state: ScanState, ctx: &mut ModelContext<Self>) {
|
|
let _ = self.scan_state.0.blocking_send(scan_state);
|
|
self.poll_entries(ctx);
|
|
}
|
|
|
|
fn poll_entries(&mut self, ctx: &mut ModelContext<Self>) {
|
|
self.snapshot = self.background_snapshot.lock().clone();
|
|
ctx.notify();
|
|
|
|
if self.is_scanning() && !self.poll_scheduled {
|
|
ctx.spawn(Timer::after(Duration::from_millis(100)), |this, _, ctx| {
|
|
this.poll_scheduled = false;
|
|
this.poll_entries(ctx);
|
|
})
|
|
.detach();
|
|
self.poll_scheduled = true;
|
|
}
|
|
}
|
|
|
|
fn is_scanning(&self) -> bool {
|
|
if let ScanState::Scanning = *self.scan_state.1.borrow() {
|
|
true
|
|
} else {
|
|
false
|
|
}
|
|
}
|
|
|
|
pub fn snapshot(&self) -> Snapshot {
|
|
self.snapshot.clone()
|
|
}
|
|
|
|
pub fn contains_abs_path(&self, path: &Path) -> bool {
|
|
path.starts_with(&self.snapshot.abs_path)
|
|
}
|
|
|
|
pub fn load_history(
|
|
&self,
|
|
path: &Path,
|
|
ctx: &AppContext,
|
|
) -> impl Future<Output = Result<History>> {
|
|
let abs_path = self.snapshot.abs_path.join(path);
|
|
ctx.background_executor().spawn(async move {
|
|
let mut file = std::fs::File::open(&abs_path)?;
|
|
let mut base_text = String::new();
|
|
file.read_to_string(&mut base_text)?;
|
|
Ok(History::new(Arc::from(base_text)))
|
|
})
|
|
}
|
|
|
|
pub fn save<'a>(
|
|
&self,
|
|
path: &Path,
|
|
content: BufferSnapshot,
|
|
ctx: &AppContext,
|
|
) -> Task<Result<()>> {
|
|
let abs_path = self.snapshot.abs_path.join(path);
|
|
ctx.background_executor().spawn(async move {
|
|
let buffer_size = content.text_summary().bytes.min(10 * 1024);
|
|
let file = std::fs::File::create(&abs_path)?;
|
|
let mut writer = std::io::BufWriter::with_capacity(buffer_size, file);
|
|
for chunk in content.fragments() {
|
|
writer.write(chunk.as_bytes())?;
|
|
}
|
|
writer.flush()?;
|
|
Ok(())
|
|
})
|
|
}
|
|
}
|
|
|
|
impl Entity for Worktree {
|
|
type Event = ();
|
|
}
|
|
|
|
impl Deref for Worktree {
|
|
type Target = Snapshot;
|
|
|
|
fn deref(&self) -> &Self::Target {
|
|
&self.snapshot
|
|
}
|
|
}
|
|
|
|
impl fmt::Debug for Worktree {
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
|
self.snapshot.fmt(f)
|
|
}
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct Snapshot {
|
|
id: usize,
|
|
scan_id: usize,
|
|
abs_path: Arc<Path>,
|
|
root_name_chars: Vec<char>,
|
|
ignores: BTreeMap<Arc<Path>, (Arc<Gitignore>, usize)>,
|
|
entries: SumTree<Entry>,
|
|
}
|
|
|
|
impl Snapshot {
|
|
pub fn file_count(&self) -> usize {
|
|
self.entries.summary().file_count
|
|
}
|
|
|
|
pub fn visible_file_count(&self) -> usize {
|
|
self.entries.summary().visible_file_count
|
|
}
|
|
|
|
pub fn files(&self, start: usize) -> FileIter {
|
|
FileIter::all(self, start)
|
|
}
|
|
|
|
#[cfg(test)]
|
|
pub fn paths(&self) -> impl Iterator<Item = &Arc<Path>> {
|
|
let mut cursor = self.entries.cursor::<(), ()>();
|
|
cursor.next();
|
|
cursor.map(|entry| entry.path())
|
|
}
|
|
|
|
pub fn visible_files(&self, start: usize) -> FileIter {
|
|
FileIter::visible(self, start)
|
|
}
|
|
|
|
pub fn root_entry(&self) -> Entry {
|
|
self.entry_for_path("").unwrap()
|
|
}
|
|
|
|
pub fn root_name(&self) -> Option<&OsStr> {
|
|
self.abs_path.file_name()
|
|
}
|
|
|
|
pub fn root_name_chars(&self) -> &[char] {
|
|
&self.root_name_chars
|
|
}
|
|
|
|
fn entry_for_path(&self, path: impl AsRef<Path>) -> Option<Entry> {
|
|
let mut cursor = self.entries.cursor::<_, ()>();
|
|
if cursor.seek(&PathSearch::Exact(path.as_ref()), SeekBias::Left) {
|
|
cursor.item().cloned()
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
|
|
pub fn inode_for_path(&self, path: impl AsRef<Path>) -> Option<u64> {
|
|
self.entry_for_path(path.as_ref()).map(|e| e.inode())
|
|
}
|
|
|
|
fn is_path_ignored(&self, path: &Path) -> Result<bool> {
|
|
let mut entry = self
|
|
.entry_for_path(path)
|
|
.ok_or_else(|| anyhow!("entry does not exist in worktree"))?;
|
|
|
|
if path.starts_with(".git") {
|
|
Ok(true)
|
|
} else {
|
|
while let Some(parent_entry) =
|
|
entry.path().parent().and_then(|p| self.entry_for_path(p))
|
|
{
|
|
let parent_path = parent_entry.path();
|
|
if let Some((ignore, _)) = self.ignores.get(parent_path) {
|
|
let relative_path = path.strip_prefix(parent_path).unwrap();
|
|
match ignore.matched_path_or_any_parents(relative_path, entry.is_dir()) {
|
|
ignore::Match::Whitelist(_) => return Ok(false),
|
|
ignore::Match::Ignore(_) => return Ok(true),
|
|
ignore::Match::None => {}
|
|
}
|
|
}
|
|
entry = parent_entry;
|
|
}
|
|
Ok(false)
|
|
}
|
|
}
|
|
|
|
fn insert_entry(&mut self, entry: Entry) {
|
|
if !entry.is_dir() && entry.path().file_name() == Some(&GITIGNORE) {
|
|
self.insert_ignore_file(entry.path());
|
|
}
|
|
self.entries.insert(entry);
|
|
}
|
|
|
|
fn populate_dir(&mut self, parent_path: Arc<Path>, entries: impl IntoIterator<Item = Entry>) {
|
|
let mut edits = Vec::new();
|
|
|
|
let mut parent_entry = self.entries.get(&PathKey(parent_path)).unwrap().clone();
|
|
if matches!(parent_entry.kind, EntryKind::PendingDir) {
|
|
parent_entry.kind = EntryKind::Dir;
|
|
} else {
|
|
unreachable!();
|
|
}
|
|
edits.push(Edit::Insert(parent_entry));
|
|
|
|
for entry in entries {
|
|
if !entry.is_dir() && entry.path().file_name() == Some(&GITIGNORE) {
|
|
self.insert_ignore_file(entry.path());
|
|
}
|
|
edits.push(Edit::Insert(entry));
|
|
}
|
|
self.entries.edit(edits);
|
|
}
|
|
|
|
fn remove_path(&mut self, path: &Path) {
|
|
let new_entries = {
|
|
let mut cursor = self.entries.cursor::<_, ()>();
|
|
let mut new_entries = cursor.slice(&PathSearch::Exact(path), SeekBias::Left);
|
|
cursor.seek_forward(&PathSearch::Successor(path), SeekBias::Left);
|
|
new_entries.push_tree(cursor.suffix());
|
|
new_entries
|
|
};
|
|
self.entries = new_entries;
|
|
|
|
if path.file_name() == Some(&GITIGNORE) {
|
|
if let Some((_, scan_id)) = self.ignores.get_mut(path.parent().unwrap()) {
|
|
*scan_id = self.scan_id;
|
|
}
|
|
}
|
|
}
|
|
|
|
fn insert_ignore_file(&mut self, path: &Path) {
|
|
let (ignore, err) = Gitignore::new(self.abs_path.join(path));
|
|
if let Some(err) = err {
|
|
log::error!("error in ignore file {:?} - {:?}", path, err);
|
|
}
|
|
|
|
let ignore_parent_path = path.parent().unwrap().into();
|
|
self.ignores
|
|
.insert(ignore_parent_path, (Arc::new(ignore), self.scan_id));
|
|
}
|
|
}
|
|
|
|
impl fmt::Debug for Snapshot {
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
|
for entry in self.entries.cursor::<(), ()>() {
|
|
for _ in entry.path().ancestors().skip(1) {
|
|
write!(f, " ")?;
|
|
}
|
|
writeln!(f, "{:?} (inode: {})", entry.path(), entry.inode())?;
|
|
}
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
impl FileHandle {
|
|
pub fn path(&self) -> &Arc<Path> {
|
|
&self.path
|
|
}
|
|
|
|
pub fn load_history(&self, ctx: &AppContext) -> impl Future<Output = Result<History>> {
|
|
self.worktree.read(ctx).load_history(&self.path, ctx)
|
|
}
|
|
|
|
pub fn save<'a>(&self, content: BufferSnapshot, ctx: &AppContext) -> Task<Result<()>> {
|
|
let worktree = self.worktree.read(ctx);
|
|
worktree.save(&self.path, content, ctx)
|
|
}
|
|
|
|
pub fn entry_id(&self) -> (usize, Arc<Path>) {
|
|
(self.worktree.id(), self.path.clone())
|
|
}
|
|
}
|
|
|
|
#[derive(Clone, Debug)]
|
|
pub struct Entry {
|
|
kind: EntryKind,
|
|
path: Arc<Path>,
|
|
inode: u64,
|
|
is_symlink: bool,
|
|
is_ignored: Option<bool>,
|
|
}
|
|
|
|
#[derive(Clone, Debug)]
|
|
pub enum EntryKind {
|
|
PendingDir,
|
|
Dir,
|
|
File(CharBag),
|
|
}
|
|
|
|
impl Entry {
|
|
pub fn path(&self) -> &Arc<Path> {
|
|
&self.path
|
|
}
|
|
|
|
pub fn inode(&self) -> u64 {
|
|
self.inode
|
|
}
|
|
|
|
fn is_ignored(&self) -> Option<bool> {
|
|
self.is_ignored
|
|
}
|
|
|
|
fn set_ignored(&mut self, ignored: bool) {
|
|
self.is_ignored = Some(ignored);
|
|
}
|
|
|
|
fn is_dir(&self) -> bool {
|
|
matches!(self.kind, EntryKind::Dir | EntryKind::PendingDir)
|
|
}
|
|
}
|
|
|
|
impl sum_tree::Item for Entry {
|
|
type Summary = EntrySummary;
|
|
|
|
fn summary(&self) -> Self::Summary {
|
|
let file_count;
|
|
let visible_file_count;
|
|
if matches!(self.kind, EntryKind::File(_)) {
|
|
file_count = 1;
|
|
if self.is_ignored.unwrap_or(false) {
|
|
visible_file_count = 0;
|
|
} else {
|
|
visible_file_count = 1;
|
|
}
|
|
} else {
|
|
file_count = 0;
|
|
visible_file_count = 0;
|
|
}
|
|
|
|
EntrySummary {
|
|
max_path: self.path().clone(),
|
|
file_count,
|
|
visible_file_count,
|
|
recompute_ignore_status: self.is_ignored().is_none(),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl sum_tree::KeyedItem for Entry {
|
|
type Key = PathKey;
|
|
|
|
fn key(&self) -> Self::Key {
|
|
PathKey(self.path().clone())
|
|
}
|
|
}
|
|
|
|
#[derive(Clone, Debug)]
|
|
pub struct EntrySummary {
|
|
max_path: Arc<Path>,
|
|
file_count: usize,
|
|
visible_file_count: usize,
|
|
recompute_ignore_status: bool,
|
|
}
|
|
|
|
impl Default for EntrySummary {
|
|
fn default() -> Self {
|
|
Self {
|
|
max_path: Arc::from(Path::new("")),
|
|
file_count: 0,
|
|
visible_file_count: 0,
|
|
recompute_ignore_status: false,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a> AddAssign<&'a EntrySummary> for EntrySummary {
|
|
fn add_assign(&mut self, rhs: &'a EntrySummary) {
|
|
self.max_path = rhs.max_path.clone();
|
|
self.file_count += rhs.file_count;
|
|
self.visible_file_count += rhs.visible_file_count;
|
|
self.recompute_ignore_status |= rhs.recompute_ignore_status;
|
|
}
|
|
}
|
|
|
|
#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd)]
|
|
pub struct PathKey(Arc<Path>);
|
|
|
|
impl Default for PathKey {
|
|
fn default() -> Self {
|
|
Self(Path::new("").into())
|
|
}
|
|
}
|
|
|
|
impl<'a> sum_tree::Dimension<'a, EntrySummary> for PathKey {
|
|
fn add_summary(&mut self, summary: &'a EntrySummary) {
|
|
self.0 = summary.max_path.clone();
|
|
}
|
|
}
|
|
|
|
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
|
|
enum PathSearch<'a> {
|
|
Exact(&'a Path),
|
|
Successor(&'a Path),
|
|
}
|
|
|
|
impl<'a> Ord for PathSearch<'a> {
|
|
fn cmp(&self, other: &Self) -> cmp::Ordering {
|
|
match (self, other) {
|
|
(Self::Exact(a), Self::Exact(b)) => a.cmp(b),
|
|
(Self::Successor(a), Self::Exact(b)) => {
|
|
if b.starts_with(a) {
|
|
cmp::Ordering::Greater
|
|
} else {
|
|
a.cmp(b)
|
|
}
|
|
}
|
|
_ => todo!("not sure we need the other two cases"),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a> PartialOrd for PathSearch<'a> {
|
|
fn partial_cmp(&self, other: &Self) -> Option<cmp::Ordering> {
|
|
Some(self.cmp(other))
|
|
}
|
|
}
|
|
|
|
impl<'a> Default for PathSearch<'a> {
|
|
fn default() -> Self {
|
|
Self::Exact(Path::new("").into())
|
|
}
|
|
}
|
|
|
|
impl<'a> sum_tree::Dimension<'a, EntrySummary> for PathSearch<'a> {
|
|
fn add_summary(&mut self, summary: &'a EntrySummary) {
|
|
*self = Self::Exact(summary.max_path.as_ref());
|
|
}
|
|
}
|
|
|
|
#[derive(Copy, Clone, Default, Debug, Eq, PartialEq, Ord, PartialOrd)]
|
|
pub struct FileCount(usize);
|
|
|
|
impl<'a> sum_tree::Dimension<'a, EntrySummary> for FileCount {
|
|
fn add_summary(&mut self, summary: &'a EntrySummary) {
|
|
self.0 += summary.file_count;
|
|
}
|
|
}
|
|
|
|
#[derive(Copy, Clone, Default, Debug, Eq, PartialEq, Ord, PartialOrd)]
|
|
pub struct VisibleFileCount(usize);
|
|
|
|
impl<'a> sum_tree::Dimension<'a, EntrySummary> for VisibleFileCount {
|
|
fn add_summary(&mut self, summary: &'a EntrySummary) {
|
|
self.0 += summary.visible_file_count;
|
|
}
|
|
}
|
|
|
|
struct BackgroundScanner {
|
|
snapshot: Arc<Mutex<Snapshot>>,
|
|
notify: Sender<ScanState>,
|
|
other_mount_paths: HashSet<PathBuf>,
|
|
thread_pool: scoped_pool::Pool,
|
|
root_char_bag: CharBag,
|
|
}
|
|
|
|
impl BackgroundScanner {
|
|
fn new(snapshot: Arc<Mutex<Snapshot>>, notify: Sender<ScanState>, worktree_id: usize) -> Self {
|
|
let root_char_bag = CharBag::from(snapshot.lock().root_name_chars.as_slice());
|
|
let mut scanner = Self {
|
|
root_char_bag,
|
|
snapshot,
|
|
notify,
|
|
other_mount_paths: Default::default(),
|
|
thread_pool: scoped_pool::Pool::new(16, format!("worktree-{}-scanner", worktree_id)),
|
|
};
|
|
scanner.update_other_mount_paths();
|
|
scanner
|
|
}
|
|
|
|
fn update_other_mount_paths(&mut self) {
|
|
let path = self.snapshot.lock().abs_path.clone();
|
|
self.other_mount_paths.clear();
|
|
self.other_mount_paths.extend(
|
|
mounted_volume_paths()
|
|
.into_iter()
|
|
.filter(|mount_path| !path.starts_with(mount_path)),
|
|
);
|
|
}
|
|
|
|
fn abs_path(&self) -> Arc<Path> {
|
|
self.snapshot.lock().abs_path.clone()
|
|
}
|
|
|
|
fn snapshot(&self) -> Snapshot {
|
|
self.snapshot.lock().clone()
|
|
}
|
|
|
|
fn run(mut self, event_stream: fsevent::EventStream) {
|
|
if smol::block_on(self.notify.send(ScanState::Scanning)).is_err() {
|
|
return;
|
|
}
|
|
|
|
if let Err(err) = self.scan_dirs() {
|
|
if smol::block_on(self.notify.send(ScanState::Err(Arc::new(err)))).is_err() {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if smol::block_on(self.notify.send(ScanState::Idle)).is_err() {
|
|
return;
|
|
}
|
|
|
|
event_stream.run(move |events| {
|
|
if smol::block_on(self.notify.send(ScanState::Scanning)).is_err() {
|
|
return false;
|
|
}
|
|
|
|
if !self.process_events(events) {
|
|
return false;
|
|
}
|
|
|
|
if smol::block_on(self.notify.send(ScanState::Idle)).is_err() {
|
|
return false;
|
|
}
|
|
|
|
true
|
|
});
|
|
}
|
|
|
|
fn scan_dirs(&self) -> io::Result<()> {
|
|
self.snapshot.lock().scan_id += 1;
|
|
|
|
let path: Arc<Path> = Arc::from(Path::new(""));
|
|
let abs_path = self.abs_path();
|
|
let metadata = fs::metadata(&abs_path)?;
|
|
let inode = metadata.ino();
|
|
let is_symlink = fs::symlink_metadata(&abs_path)?.file_type().is_symlink();
|
|
|
|
if metadata.file_type().is_dir() {
|
|
let dir_entry = Entry {
|
|
kind: EntryKind::PendingDir,
|
|
path: path.clone(),
|
|
inode,
|
|
is_symlink,
|
|
is_ignored: None,
|
|
};
|
|
self.snapshot.lock().insert_entry(dir_entry);
|
|
|
|
let (tx, rx) = crossbeam_channel::unbounded();
|
|
|
|
tx.send(ScanJob {
|
|
abs_path: abs_path.to_path_buf(),
|
|
path,
|
|
scan_queue: tx.clone(),
|
|
})
|
|
.unwrap();
|
|
drop(tx);
|
|
|
|
self.thread_pool.scoped(|pool| {
|
|
for _ in 0..self.thread_pool.thread_count() {
|
|
pool.execute(|| {
|
|
while let Ok(job) = rx.recv() {
|
|
if let Err(err) = self.scan_dir(&job) {
|
|
log::error!("error scanning {:?}: {}", job.abs_path, err);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
});
|
|
} else {
|
|
self.snapshot.lock().insert_entry(Entry {
|
|
kind: EntryKind::File(self.char_bag(&path)),
|
|
path,
|
|
inode,
|
|
is_symlink,
|
|
is_ignored: None,
|
|
});
|
|
}
|
|
|
|
self.recompute_ignore_statuses();
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn scan_dir(&self, job: &ScanJob) -> io::Result<()> {
|
|
let mut new_entries = Vec::new();
|
|
let mut new_jobs = Vec::new();
|
|
|
|
for child_entry in fs::read_dir(&job.abs_path)? {
|
|
let child_entry = child_entry?;
|
|
let child_name = child_entry.file_name();
|
|
let child_abs_path = job.abs_path.join(&child_name);
|
|
let child_path: Arc<Path> = job.path.join(&child_name).into();
|
|
let child_metadata = child_entry.metadata()?;
|
|
let child_inode = child_metadata.ino();
|
|
let child_is_symlink = child_metadata.file_type().is_symlink();
|
|
|
|
// Disallow mount points outside the file system containing the root of this worktree
|
|
if self.other_mount_paths.contains(&child_abs_path) {
|
|
continue;
|
|
}
|
|
|
|
if child_metadata.is_dir() {
|
|
new_entries.push(Entry {
|
|
kind: EntryKind::PendingDir,
|
|
path: child_path.clone(),
|
|
inode: child_inode,
|
|
is_symlink: child_is_symlink,
|
|
is_ignored: None,
|
|
});
|
|
new_jobs.push(ScanJob {
|
|
abs_path: child_abs_path,
|
|
path: child_path,
|
|
scan_queue: job.scan_queue.clone(),
|
|
});
|
|
} else {
|
|
new_entries.push(Entry {
|
|
kind: EntryKind::File(self.char_bag(&child_path)),
|
|
path: child_path,
|
|
inode: child_inode,
|
|
is_symlink: child_is_symlink,
|
|
is_ignored: None,
|
|
});
|
|
};
|
|
}
|
|
|
|
self.snapshot
|
|
.lock()
|
|
.populate_dir(job.path.clone(), new_entries);
|
|
for new_job in new_jobs {
|
|
job.scan_queue.send(new_job).unwrap();
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn process_events(&mut self, mut events: Vec<fsevent::Event>) -> bool {
|
|
self.update_other_mount_paths();
|
|
|
|
let mut snapshot = self.snapshot();
|
|
snapshot.scan_id += 1;
|
|
|
|
let root_abs_path = if let Ok(abs_path) = snapshot.abs_path.canonicalize() {
|
|
abs_path
|
|
} else {
|
|
return false;
|
|
};
|
|
|
|
events.sort_unstable_by(|a, b| a.path.cmp(&b.path));
|
|
let mut abs_paths = events.into_iter().map(|e| e.path).peekable();
|
|
let (scan_queue_tx, scan_queue_rx) = crossbeam_channel::unbounded();
|
|
|
|
while let Some(abs_path) = abs_paths.next() {
|
|
let path = match abs_path.strip_prefix(&root_abs_path) {
|
|
Ok(path) => Arc::from(path.to_path_buf()),
|
|
Err(_) => {
|
|
log::error!(
|
|
"unexpected event {:?} for root path {:?}",
|
|
abs_path,
|
|
root_abs_path
|
|
);
|
|
continue;
|
|
}
|
|
};
|
|
|
|
while abs_paths.peek().map_or(false, |p| p.starts_with(&abs_path)) {
|
|
abs_paths.next();
|
|
}
|
|
|
|
snapshot.remove_path(&path);
|
|
|
|
match self.fs_entry_for_path(path.clone(), &abs_path) {
|
|
Ok(Some(fs_entry)) => {
|
|
let is_dir = fs_entry.is_dir();
|
|
snapshot.insert_entry(fs_entry);
|
|
if is_dir {
|
|
scan_queue_tx
|
|
.send(ScanJob {
|
|
abs_path,
|
|
path,
|
|
scan_queue: scan_queue_tx.clone(),
|
|
})
|
|
.unwrap();
|
|
}
|
|
}
|
|
Ok(None) => {}
|
|
Err(err) => {
|
|
// TODO - create a special 'error' entry in the entries tree to mark this
|
|
log::error!("error reading file on event {:?}", err);
|
|
}
|
|
}
|
|
}
|
|
|
|
*self.snapshot.lock() = snapshot;
|
|
|
|
// Scan any directories that were created as part of this event batch.
|
|
drop(scan_queue_tx);
|
|
self.thread_pool.scoped(|pool| {
|
|
for _ in 0..self.thread_pool.thread_count() {
|
|
pool.execute(|| {
|
|
while let Ok(job) = scan_queue_rx.recv() {
|
|
if let Err(err) = self.scan_dir(&job) {
|
|
log::error!("error scanning {:?}: {}", job.abs_path, err);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
self.recompute_ignore_statuses();
|
|
|
|
true
|
|
}
|
|
|
|
fn recompute_ignore_statuses(&self) {
|
|
self.compute_ignore_status_for_new_ignores();
|
|
self.compute_ignore_status_for_new_entries();
|
|
}
|
|
|
|
fn compute_ignore_status_for_new_ignores(&self) {
|
|
let mut snapshot = self.snapshot();
|
|
|
|
let mut ignores_to_delete = Vec::new();
|
|
let mut changed_ignore_parents = Vec::new();
|
|
for (parent_path, (_, scan_id)) in &snapshot.ignores {
|
|
let prev_ignore_parent = changed_ignore_parents.last();
|
|
if *scan_id == snapshot.scan_id
|
|
&& prev_ignore_parent.map_or(true, |l| !parent_path.starts_with(l))
|
|
{
|
|
changed_ignore_parents.push(parent_path.clone());
|
|
}
|
|
|
|
let ignore_parent_exists = snapshot.entry_for_path(parent_path).is_some();
|
|
let ignore_exists = snapshot
|
|
.entry_for_path(parent_path.join(&*GITIGNORE))
|
|
.is_some();
|
|
if !ignore_parent_exists || !ignore_exists {
|
|
ignores_to_delete.push(parent_path.clone());
|
|
}
|
|
}
|
|
|
|
for parent_path in ignores_to_delete {
|
|
snapshot.ignores.remove(&parent_path);
|
|
self.snapshot.lock().ignores.remove(&parent_path);
|
|
}
|
|
|
|
let (entries_tx, entries_rx) = crossbeam_channel::unbounded();
|
|
self.thread_pool.scoped(|scope| {
|
|
let (edits_tx, edits_rx) = crossbeam_channel::unbounded();
|
|
scope.execute(move || {
|
|
let mut edits = Vec::new();
|
|
while let Ok(edit) = edits_rx.recv() {
|
|
edits.push(edit);
|
|
while let Ok(edit) = edits_rx.try_recv() {
|
|
edits.push(edit);
|
|
}
|
|
self.snapshot.lock().entries.edit(mem::take(&mut edits));
|
|
}
|
|
});
|
|
|
|
scope.execute(|| {
|
|
let entries_tx = entries_tx;
|
|
let mut cursor = snapshot.entries.cursor::<_, ()>();
|
|
for ignore_parent_path in &changed_ignore_parents {
|
|
cursor.seek(&PathSearch::Exact(ignore_parent_path), SeekBias::Right);
|
|
while let Some(entry) = cursor.item() {
|
|
if entry.path().starts_with(ignore_parent_path) {
|
|
entries_tx.send(entry.clone()).unwrap();
|
|
cursor.next();
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
for _ in 0..self.thread_pool.thread_count() - 2 {
|
|
let edits_tx = edits_tx.clone();
|
|
scope.execute(|| {
|
|
let edits_tx = edits_tx;
|
|
while let Ok(mut entry) = entries_rx.recv() {
|
|
entry.set_ignored(snapshot.is_path_ignored(entry.path()).unwrap());
|
|
edits_tx.send(Edit::Insert(entry)).unwrap();
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
|
|
fn compute_ignore_status_for_new_entries(&self) {
|
|
let snapshot = self.snapshot.lock().clone();
|
|
|
|
let (entries_tx, entries_rx) = crossbeam_channel::unbounded();
|
|
self.thread_pool.scoped(|scope| {
|
|
let (edits_tx, edits_rx) = crossbeam_channel::unbounded();
|
|
scope.execute(move || {
|
|
let mut edits = Vec::new();
|
|
while let Ok(edit) = edits_rx.recv() {
|
|
edits.push(edit);
|
|
while let Ok(edit) = edits_rx.try_recv() {
|
|
edits.push(edit);
|
|
}
|
|
self.snapshot.lock().entries.edit(mem::take(&mut edits));
|
|
}
|
|
});
|
|
|
|
scope.execute(|| {
|
|
let entries_tx = entries_tx;
|
|
for entry in snapshot
|
|
.entries
|
|
.filter::<_, ()>(|e| e.recompute_ignore_status)
|
|
{
|
|
entries_tx.send(entry.clone()).unwrap();
|
|
}
|
|
});
|
|
|
|
for _ in 0..self.thread_pool.thread_count() - 2 {
|
|
let edits_tx = edits_tx.clone();
|
|
scope.execute(|| {
|
|
let edits_tx = edits_tx;
|
|
while let Ok(mut entry) = entries_rx.recv() {
|
|
entry.set_ignored(snapshot.is_path_ignored(entry.path()).unwrap());
|
|
edits_tx.send(Edit::Insert(entry)).unwrap();
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
|
|
fn fs_entry_for_path(&self, path: Arc<Path>, abs_path: &Path) -> Result<Option<Entry>> {
|
|
let metadata = match fs::metadata(&abs_path) {
|
|
Err(err) => {
|
|
return match (err.kind(), err.raw_os_error()) {
|
|
(io::ErrorKind::NotFound, _) => Ok(None),
|
|
(io::ErrorKind::Other, Some(libc::ENOTDIR)) => Ok(None),
|
|
_ => Err(anyhow::Error::new(err)),
|
|
}
|
|
}
|
|
Ok(metadata) => metadata,
|
|
};
|
|
let inode = metadata.ino();
|
|
let is_symlink = fs::symlink_metadata(&abs_path)
|
|
.context("failed to read symlink metadata")?
|
|
.file_type()
|
|
.is_symlink();
|
|
|
|
let entry = Entry {
|
|
kind: if metadata.file_type().is_dir() {
|
|
EntryKind::PendingDir
|
|
} else {
|
|
EntryKind::File(self.char_bag(&path))
|
|
},
|
|
path,
|
|
inode,
|
|
is_symlink,
|
|
is_ignored: None,
|
|
};
|
|
|
|
Ok(Some(entry))
|
|
}
|
|
|
|
fn char_bag(&self, path: &Path) -> CharBag {
|
|
let mut result = self.root_char_bag;
|
|
result.extend(path.to_string_lossy().chars());
|
|
result
|
|
}
|
|
}
|
|
|
|
struct ScanJob {
|
|
abs_path: PathBuf,
|
|
path: Arc<Path>,
|
|
scan_queue: crossbeam_channel::Sender<ScanJob>,
|
|
}
|
|
|
|
pub trait WorktreeHandle {
|
|
fn file(&self, path: impl AsRef<Path>, app: &AppContext) -> Result<FileHandle>;
|
|
}
|
|
|
|
impl WorktreeHandle for ModelHandle<Worktree> {
|
|
fn file(&self, path: impl AsRef<Path>, app: &AppContext) -> Result<FileHandle> {
|
|
self.read(app)
|
|
.entry_for_path(&path)
|
|
.map(|entry| FileHandle {
|
|
worktree: self.clone(),
|
|
path: entry.path().clone(),
|
|
})
|
|
.ok_or_else(|| anyhow!("path does not exist in tree"))
|
|
}
|
|
}
|
|
|
|
pub enum FileIter<'a> {
|
|
All(Cursor<'a, Entry, FileCount, FileCount>),
|
|
Visible(Cursor<'a, Entry, VisibleFileCount, VisibleFileCount>),
|
|
}
|
|
|
|
impl<'a> FileIter<'a> {
|
|
fn all(snapshot: &'a Snapshot, start: usize) -> Self {
|
|
let mut cursor = snapshot.entries.cursor();
|
|
cursor.seek(&FileCount(start), SeekBias::Right);
|
|
Self::All(cursor)
|
|
}
|
|
|
|
fn visible(snapshot: &'a Snapshot, start: usize) -> Self {
|
|
let mut cursor = snapshot.entries.cursor();
|
|
cursor.seek(&VisibleFileCount(start), SeekBias::Right);
|
|
Self::Visible(cursor)
|
|
}
|
|
|
|
fn next_internal(&mut self) {
|
|
match self {
|
|
Self::All(cursor) => {
|
|
let ix = *cursor.start();
|
|
cursor.seek_forward(&FileCount(ix.0 + 1), SeekBias::Right);
|
|
}
|
|
Self::Visible(cursor) => {
|
|
let ix = *cursor.start();
|
|
cursor.seek_forward(&VisibleFileCount(ix.0 + 1), SeekBias::Right);
|
|
}
|
|
}
|
|
}
|
|
|
|
fn item(&self) -> Option<&'a Entry> {
|
|
match self {
|
|
Self::All(cursor) => cursor.item(),
|
|
Self::Visible(cursor) => cursor.item(),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a> Iterator for FileIter<'a> {
|
|
type Item = &'a Entry;
|
|
|
|
fn next(&mut self) -> Option<Self::Item> {
|
|
if let Some(entry) = self.item() {
|
|
self.next_internal();
|
|
Some(entry)
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
fn mounted_volume_paths() -> Vec<PathBuf> {
|
|
unsafe {
|
|
let mut stat_ptr: *mut libc::statfs = std::ptr::null_mut();
|
|
let count = libc::getmntinfo(&mut stat_ptr as *mut _, libc::MNT_WAIT);
|
|
if count >= 0 {
|
|
std::slice::from_raw_parts(stat_ptr, count as usize)
|
|
.iter()
|
|
.map(|stat| {
|
|
PathBuf::from(OsStr::from_bytes(
|
|
CStr::from_ptr(&stat.f_mntonname[0]).to_bytes(),
|
|
))
|
|
})
|
|
.collect()
|
|
} else {
|
|
panic!("failed to run getmntinfo");
|
|
}
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
use crate::editor::Buffer;
|
|
use crate::test::*;
|
|
use anyhow::Result;
|
|
use gpui::App;
|
|
use rand::prelude::*;
|
|
use serde_json::json;
|
|
use std::env;
|
|
use std::fmt::Write;
|
|
use std::os::unix;
|
|
use std::time::{SystemTime, UNIX_EPOCH};
|
|
|
|
#[test]
|
|
fn test_populate_and_search() {
|
|
App::test_async((), |mut app| async move {
|
|
let dir = temp_tree(json!({
|
|
"root": {
|
|
"apple": "",
|
|
"banana": {
|
|
"carrot": {
|
|
"date": "",
|
|
"endive": "",
|
|
}
|
|
},
|
|
"fennel": {
|
|
"grape": "",
|
|
}
|
|
}
|
|
}));
|
|
|
|
let root_link_path = dir.path().join("root_link");
|
|
unix::fs::symlink(&dir.path().join("root"), &root_link_path).unwrap();
|
|
|
|
let tree = app.add_model(|ctx| Worktree::new(root_link_path, ctx));
|
|
|
|
app.read(|ctx| tree.read(ctx).scan_complete()).await;
|
|
app.read(|ctx| {
|
|
let tree = tree.read(ctx);
|
|
assert_eq!(tree.file_count(), 4);
|
|
let results = match_paths(
|
|
Some(tree.snapshot()).iter(),
|
|
"bna",
|
|
false,
|
|
false,
|
|
false,
|
|
10,
|
|
ctx.thread_pool().clone(),
|
|
)
|
|
.into_iter()
|
|
.map(|result| result.path)
|
|
.collect::<Vec<Arc<Path>>>();
|
|
assert_eq!(
|
|
results,
|
|
vec![
|
|
PathBuf::from("banana/carrot/date").into(),
|
|
PathBuf::from("banana/carrot/endive").into(),
|
|
]
|
|
);
|
|
})
|
|
});
|
|
}
|
|
|
|
#[test]
|
|
fn test_save_file() {
|
|
App::test_async((), |mut app| async move {
|
|
let dir = temp_tree(json!({
|
|
"file1": "the old contents",
|
|
}));
|
|
|
|
let tree = app.add_model(|ctx| Worktree::new(dir.path(), ctx));
|
|
app.read(|ctx| tree.read(ctx).scan_complete()).await;
|
|
app.read(|ctx| assert_eq!(tree.read(ctx).file_count(), 1));
|
|
|
|
let buffer = Buffer::new(1, "a line of text.\n".repeat(10 * 1024));
|
|
|
|
let path = tree.update(&mut app, |tree, ctx| {
|
|
let path = tree.files(0).next().unwrap().path().clone();
|
|
assert_eq!(path.file_name().unwrap(), "file1");
|
|
smol::block_on(tree.save(&path, buffer.snapshot(), ctx.as_ref())).unwrap();
|
|
path
|
|
});
|
|
|
|
let loaded_history = app
|
|
.read(|ctx| tree.read(ctx).load_history(&path, ctx))
|
|
.await
|
|
.unwrap();
|
|
assert_eq!(loaded_history.base_text.as_ref(), buffer.text());
|
|
});
|
|
}
|
|
|
|
#[test]
|
|
fn test_rescan_simple() {
|
|
App::test_async((), |mut app| async move {
|
|
let dir = temp_tree(json!({
|
|
"a": {
|
|
"file1": "",
|
|
},
|
|
"b": {
|
|
"c": {
|
|
"file2": "",
|
|
}
|
|
}
|
|
}));
|
|
|
|
let tree = app.add_model(|ctx| Worktree::new(dir.path(), ctx));
|
|
app.read(|ctx| tree.read(ctx).scan_complete()).await;
|
|
app.read(|ctx| assert_eq!(tree.read(ctx).file_count(), 2));
|
|
|
|
let file2 = app.read(|ctx| {
|
|
let file2 = tree.file("b/c/file2", ctx).unwrap();
|
|
assert_eq!(file2.path().as_ref(), Path::new("b/c/file2"));
|
|
file2
|
|
});
|
|
|
|
std::fs::rename(dir.path().join("b/c"), dir.path().join("d")).unwrap();
|
|
|
|
app.read(|ctx| tree.read(ctx).next_scan_complete()).await;
|
|
|
|
app.read(|ctx| {
|
|
assert_eq!(
|
|
tree.read(ctx)
|
|
.paths()
|
|
.map(|p| p.to_str().unwrap())
|
|
.collect::<Vec<_>>(),
|
|
vec!["a", "a/file1", "b", "d", "d/file2"]
|
|
)
|
|
});
|
|
|
|
// tree.condition(&app, move |_, _| {
|
|
// file2.path().as_ref() == Path::new("d/file2")
|
|
// })
|
|
// .await;
|
|
});
|
|
}
|
|
|
|
#[test]
|
|
fn test_rescan_with_gitignore() {
|
|
App::test_async((), |mut app| async move {
|
|
let dir = temp_tree(json!({
|
|
".git": {},
|
|
".gitignore": "ignored-dir\n",
|
|
"tracked-dir": {
|
|
"tracked-file1": "tracked contents",
|
|
},
|
|
"ignored-dir": {
|
|
"ignored-file1": "ignored contents",
|
|
}
|
|
}));
|
|
|
|
let tree = app.add_model(|ctx| Worktree::new(dir.path(), ctx));
|
|
app.read(|ctx| tree.read(ctx).scan_complete()).await;
|
|
|
|
app.read(|ctx| {
|
|
let paths = tree
|
|
.read(ctx)
|
|
.paths()
|
|
.map(|p| p.to_str().unwrap())
|
|
.collect::<Vec<_>>();
|
|
println!("paths {:?}", paths);
|
|
});
|
|
|
|
app.read(|ctx| {
|
|
let tree = tree.read(ctx);
|
|
let tracked = tree.entry_for_path("tracked-dir/tracked-file1").unwrap();
|
|
let ignored = tree.entry_for_path("ignored-dir/ignored-file1").unwrap();
|
|
assert_eq!(tracked.is_ignored(), Some(false));
|
|
assert_eq!(ignored.is_ignored(), Some(true));
|
|
});
|
|
|
|
fs::write(dir.path().join("tracked-dir/tracked-file2"), "").unwrap();
|
|
fs::write(dir.path().join("ignored-dir/ignored-file2"), "").unwrap();
|
|
app.read(|ctx| tree.read(ctx).next_scan_complete()).await;
|
|
app.read(|ctx| {
|
|
let tree = tree.read(ctx);
|
|
let tracked = tree.entry_for_path("tracked-dir/tracked-file2").unwrap();
|
|
let ignored = tree.entry_for_path("ignored-dir/ignored-file2").unwrap();
|
|
assert_eq!(tracked.is_ignored(), Some(false));
|
|
assert_eq!(ignored.is_ignored(), Some(true));
|
|
});
|
|
});
|
|
}
|
|
|
|
#[test]
|
|
fn test_mounted_volume_paths() {
|
|
let paths = mounted_volume_paths();
|
|
assert!(paths.contains(&"/".into()));
|
|
}
|
|
|
|
#[test]
|
|
fn test_random() {
|
|
let iterations = env::var("ITERATIONS")
|
|
.map(|i| i.parse().unwrap())
|
|
.unwrap_or(100);
|
|
let operations = env::var("OPERATIONS")
|
|
.map(|o| o.parse().unwrap())
|
|
.unwrap_or(40);
|
|
let initial_entries = env::var("INITIAL_ENTRIES")
|
|
.map(|o| o.parse().unwrap())
|
|
.unwrap_or(20);
|
|
let seeds = if let Ok(seed) = env::var("SEED").map(|s| s.parse().unwrap()) {
|
|
seed..seed + 1
|
|
} else {
|
|
0..iterations
|
|
};
|
|
|
|
for seed in seeds {
|
|
dbg!(seed);
|
|
let mut rng = StdRng::seed_from_u64(seed);
|
|
|
|
let root_dir = tempdir::TempDir::new(&format!("test-{}", seed)).unwrap();
|
|
for _ in 0..initial_entries {
|
|
randomly_mutate_tree(root_dir.path(), 1.0, &mut rng).unwrap();
|
|
}
|
|
log::info!("Generated initial tree");
|
|
|
|
let (notify_tx, _notify_rx) = smol::channel::unbounded();
|
|
let mut scanner = BackgroundScanner::new(
|
|
Arc::new(Mutex::new(Snapshot {
|
|
id: 0,
|
|
scan_id: 0,
|
|
abs_path: root_dir.path().into(),
|
|
entries: Default::default(),
|
|
ignores: Default::default(),
|
|
root_name_chars: Default::default(),
|
|
})),
|
|
notify_tx,
|
|
0,
|
|
);
|
|
scanner.scan_dirs().unwrap();
|
|
scanner.snapshot().check_invariants();
|
|
|
|
let mut events = Vec::new();
|
|
let mut mutations_len = operations;
|
|
while mutations_len > 1 {
|
|
if !events.is_empty() && rng.gen_bool(0.4) {
|
|
let len = rng.gen_range(0..=events.len());
|
|
let to_deliver = events.drain(0..len).collect::<Vec<_>>();
|
|
log::info!("Delivering events: {:#?}", to_deliver);
|
|
scanner.process_events(to_deliver);
|
|
scanner.snapshot().check_invariants();
|
|
} else {
|
|
events.extend(randomly_mutate_tree(root_dir.path(), 0.6, &mut rng).unwrap());
|
|
mutations_len -= 1;
|
|
}
|
|
}
|
|
log::info!("Quiescing: {:#?}", events);
|
|
scanner.process_events(events);
|
|
scanner.snapshot().check_invariants();
|
|
|
|
let (notify_tx, _notify_rx) = smol::channel::unbounded();
|
|
let new_scanner = BackgroundScanner::new(
|
|
Arc::new(Mutex::new(Snapshot {
|
|
id: 0,
|
|
scan_id: 0,
|
|
abs_path: root_dir.path().into(),
|
|
entries: Default::default(),
|
|
ignores: Default::default(),
|
|
root_name_chars: Default::default(),
|
|
})),
|
|
notify_tx,
|
|
1,
|
|
);
|
|
new_scanner.scan_dirs().unwrap();
|
|
assert_eq!(scanner.snapshot().to_vec(), new_scanner.snapshot().to_vec());
|
|
}
|
|
}
|
|
|
|
fn randomly_mutate_tree(
|
|
root_path: &Path,
|
|
insertion_probability: f64,
|
|
rng: &mut impl Rng,
|
|
) -> Result<Vec<fsevent::Event>> {
|
|
let root_path = root_path.canonicalize().unwrap();
|
|
let (dirs, files) = read_dir_recursive(root_path.clone());
|
|
|
|
let mut events = Vec::new();
|
|
let mut record_event = |path: PathBuf| {
|
|
events.push(fsevent::Event {
|
|
event_id: SystemTime::now()
|
|
.duration_since(UNIX_EPOCH)
|
|
.unwrap()
|
|
.as_secs(),
|
|
flags: fsevent::StreamFlags::empty(),
|
|
path,
|
|
});
|
|
};
|
|
|
|
if (files.is_empty() && dirs.len() == 1) || rng.gen_bool(insertion_probability) {
|
|
let path = dirs.choose(rng).unwrap();
|
|
let new_path = path.join(gen_name(rng));
|
|
|
|
if rng.gen() {
|
|
log::info!("Creating dir {:?}", new_path.strip_prefix(root_path)?);
|
|
fs::create_dir(&new_path)?;
|
|
} else {
|
|
log::info!("Creating file {:?}", new_path.strip_prefix(root_path)?);
|
|
fs::write(&new_path, "")?;
|
|
}
|
|
record_event(new_path);
|
|
} else if rng.gen_bool(0.05) {
|
|
let ignore_dir_path = dirs.choose(rng).unwrap();
|
|
let ignore_path = ignore_dir_path.join(&*GITIGNORE);
|
|
|
|
let (subdirs, subfiles) = read_dir_recursive(ignore_dir_path.clone());
|
|
let files_to_ignore = {
|
|
let len = rng.gen_range(0..=subfiles.len());
|
|
subfiles.choose_multiple(rng, len)
|
|
};
|
|
let dirs_to_ignore = {
|
|
let len = rng.gen_range(0..subdirs.len());
|
|
subdirs.choose_multiple(rng, len)
|
|
};
|
|
|
|
let mut ignore_contents = String::new();
|
|
for path_to_ignore in files_to_ignore.chain(dirs_to_ignore) {
|
|
write!(
|
|
ignore_contents,
|
|
"{}\n",
|
|
path_to_ignore
|
|
.strip_prefix(&ignore_dir_path)?
|
|
.to_str()
|
|
.unwrap()
|
|
)
|
|
.unwrap();
|
|
}
|
|
log::info!(
|
|
"Creating {:?} with contents:\n{}",
|
|
ignore_path.strip_prefix(&root_path)?,
|
|
ignore_contents
|
|
);
|
|
fs::write(&ignore_path, ignore_contents).unwrap();
|
|
record_event(ignore_path);
|
|
} else {
|
|
let old_path = {
|
|
let file_path = files.choose(rng);
|
|
let dir_path = dirs[1..].choose(rng);
|
|
file_path.into_iter().chain(dir_path).choose(rng).unwrap()
|
|
};
|
|
|
|
let is_rename = rng.gen();
|
|
if is_rename {
|
|
let new_path_parent = dirs
|
|
.iter()
|
|
.filter(|d| !d.starts_with(old_path))
|
|
.choose(rng)
|
|
.unwrap();
|
|
|
|
let overwrite_existing_dir =
|
|
!old_path.starts_with(&new_path_parent) && rng.gen_bool(0.3);
|
|
let new_path = if overwrite_existing_dir {
|
|
fs::remove_dir_all(&new_path_parent).ok();
|
|
new_path_parent.to_path_buf()
|
|
} else {
|
|
new_path_parent.join(gen_name(rng))
|
|
};
|
|
|
|
log::info!(
|
|
"Renaming {:?} to {}{:?}",
|
|
old_path.strip_prefix(&root_path)?,
|
|
if overwrite_existing_dir {
|
|
"overwrite "
|
|
} else {
|
|
""
|
|
},
|
|
new_path.strip_prefix(&root_path)?
|
|
);
|
|
fs::rename(&old_path, &new_path)?;
|
|
record_event(old_path.clone());
|
|
record_event(new_path);
|
|
} else if old_path.is_dir() {
|
|
let (dirs, files) = read_dir_recursive(old_path.clone());
|
|
|
|
log::info!("Deleting dir {:?}", old_path.strip_prefix(&root_path)?);
|
|
fs::remove_dir_all(&old_path).unwrap();
|
|
for file in files {
|
|
record_event(file);
|
|
}
|
|
for dir in dirs {
|
|
record_event(dir);
|
|
}
|
|
} else {
|
|
log::info!("Deleting file {:?}", old_path.strip_prefix(&root_path)?);
|
|
fs::remove_file(old_path).unwrap();
|
|
record_event(old_path.clone());
|
|
}
|
|
}
|
|
|
|
Ok(events)
|
|
}
|
|
|
|
fn read_dir_recursive(path: PathBuf) -> (Vec<PathBuf>, Vec<PathBuf>) {
|
|
let child_entries = fs::read_dir(&path).unwrap();
|
|
let mut dirs = vec![path];
|
|
let mut files = Vec::new();
|
|
for child_entry in child_entries {
|
|
let child_path = child_entry.unwrap().path();
|
|
if child_path.is_dir() {
|
|
let (child_dirs, child_files) = read_dir_recursive(child_path);
|
|
dirs.extend(child_dirs);
|
|
files.extend(child_files);
|
|
} else {
|
|
files.push(child_path);
|
|
}
|
|
}
|
|
(dirs, files)
|
|
}
|
|
|
|
fn gen_name(rng: &mut impl Rng) -> String {
|
|
(0..6)
|
|
.map(|_| rng.sample(rand::distributions::Alphanumeric))
|
|
.map(char::from)
|
|
.collect()
|
|
}
|
|
|
|
impl Snapshot {
|
|
fn check_invariants(&self) {
|
|
let mut files = self.files(0);
|
|
let mut visible_files = self.visible_files(0);
|
|
for entry in self.entries.cursor::<(), ()>() {
|
|
if matches!(entry.kind, EntryKind::File(_)) {
|
|
assert_eq!(files.next().unwrap().inode(), entry.inode);
|
|
if !entry.is_ignored.unwrap() {
|
|
assert_eq!(visible_files.next().unwrap().inode(), entry.inode);
|
|
}
|
|
}
|
|
}
|
|
assert!(files.next().is_none());
|
|
assert!(visible_files.next().is_none());
|
|
|
|
for (ignore_parent_path, _) in &self.ignores {
|
|
assert!(self.entry_for_path(ignore_parent_path).is_some());
|
|
assert!(self
|
|
.entry_for_path(ignore_parent_path.join(&*GITIGNORE))
|
|
.is_some());
|
|
}
|
|
}
|
|
|
|
fn to_vec(&self) -> Vec<(&Path, u64, bool)> {
|
|
let mut paths = Vec::new();
|
|
for entry in self.entries.cursor::<(), ()>() {
|
|
paths.push((
|
|
entry.path().as_ref(),
|
|
entry.inode(),
|
|
entry.is_ignored().unwrap(),
|
|
));
|
|
}
|
|
paths.sort_by(|a, b| a.0.cmp(&b.0));
|
|
paths
|
|
}
|
|
}
|
|
}
|