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Rerun command if it is a file and the file changes

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This commit is contained in:
Michael Sloan 2025-08-19 15:47:14 -06:00
parent 2755cd8ec7
commit 11ad0b5793
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1 changed files with 77 additions and 28 deletions
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67
crates/zed/src/main.rs
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@ -14,7 +14,7 @@ use editor::Editor;
use extension::ExtensionHostProxy;
use extension_host::ExtensionStore;
use fs::{Fs, RealFs};
use futures::{StreamExt, channel::oneshot, future};
use futures::{FutureExt, StreamExt, channel::oneshot, future, select_biased};
use git::GitHostingProviderRegistry;
use gpui::{App, AppContext as _, Application, AsyncApp, Focusable as _, UpdateGlobal as _};
use postage::stream::Stream as _;
@ -733,6 +733,8 @@ pub fn main() {
}
}
// todo! cleanup
let fs = app_state.fs.clone();
let app_state = app_state.clone();
crate::zed::component_preview::init(app_state.clone(), cx);
@ -754,12 +756,57 @@ pub fn main() {
"Will run {} when the selection changes",
selection_change_command
);
let mut cursor_reciever = editor::LAST_CURSOR_POSITION_WATCH.1.clone();
let mut cursor_receiver = editor::LAST_CURSOR_POSITION_WATCH.1.clone();
cx.background_spawn(async move {
while let Some(mut cursor) = cursor_reciever.recv().await {
// Set up file watcher for the command file
let command_path = PathBuf::from(&selection_change_command);
let mut file_changes = if command_path.exists() {
let (events, _) = fs
.watch(&command_path, std::time::Duration::from_millis(100))
.await;
Some(events)
} else {
log::warn!(
"Command file {} does not exist, only watching selection changes",
command_path.display()
);
None
};
loop {
select_biased! {
// Handle cursor position changes
cursor_update = cursor_receiver.recv().fuse() => {
if cursor_update.is_none() {
// Cursor watcher ended
log::warn!("Cursor watcher for {} ended", command_path.display());
break;
}
},
// Handle file changes to the command file
file_change = async {
if let Some(ref mut events) = file_changes {
events.next().await
} else {
future::pending().await
}
}.fuse() => {
if file_change.is_none() {
// File watcher ended
log::warn!("File watcher for {} ended", command_path.display());
file_changes = None;
}
}
}
// TODO: Could be more efficient
let Some(mut cursor) = cursor_receiver.borrow().clone() else {
continue;
};
loop {
// todo! Check if it's changed meanwhile and refresh.
if let Some(cursor) = dbg!(&cursor) {
let status = smol::process::Command::new(&selection_change_command)
.arg(cursor.worktree_path.as_ref())
.arg(format!(
@ -780,12 +827,14 @@ pub fn main() {
log::error!("Command failed with error {}", err);
}
}
}
let new_cursor = cursor_reciever.borrow();
if *new_cursor == cursor {
let Some(new_cursor) = cursor_receiver.borrow().clone() else {
break;
};
if new_cursor == cursor {
break;
}
cursor = new_cursor.clone();
cursor = new_cursor;
}
}
})