remove the output file check in watcher

crates/typst-cli/src/watch.rs

@@ -9,7 +9,6 @@ use codespan_reporting::term::termcolor::WriteColor;
 use codespan_reporting::term::{self, termcolor};
 use ecow::eco_format;
 use notify::{Event, RecommendedWatcher, RecursiveMode, Watcher as _};
-use same_file::is_same_file;
 use typst::diag::{bail, StrResult};
 use typst::utils::format_duration;
 
@@ -23,12 +22,12 @@ use crate::{print_error, terminal};
 pub fn watch(timer: &mut Timer, command: &WatchCommand) -> StrResult<()> {
     let mut config = CompileConfig::watching(command)?;
 
-    let Output::Path(output) = &config.output else {
+    let Output::Path(_) = &config.output else {
         bail!("cannot write document to stdout in watch mode");
     };
 
     // Create a file system watcher.
-    let mut watcher = Watcher::new(output.clone())?;
+    let mut watcher = Watcher::new()?;
 
     // Create the world that serves sources, files, and fonts.
     // Additionally, if any files do not exist, wait until they do.
@@ -79,8 +78,6 @@ pub fn watch(timer: &mut Timer, command: &WatchCommand) -> StrResult<()> {
 
 /// Watches file system activity.
 struct Watcher {
-    /// The output file. We ignore any events for it.
-    output: PathBuf,
     /// The underlying watcher.
     watcher: RecommendedWatcher,
     /// Notify event receiver.
@@ -107,7 +104,7 @@ impl Watcher {
     const POLL_INTERVAL: Duration = Duration::from_millis(300);
 
     /// Create a new, blank watcher.
-    fn new(output: PathBuf) -> StrResult<Self> {
+    fn new() -> StrResult<Self> {
         // Setup file watching.
         let (tx, rx) = std::sync::mpsc::channel();
 
@@ -121,7 +118,6 @@ impl Watcher {
             .map_err(|err| eco_format!("failed to setup file watching ({err})"))?;
 
         Ok(Self {
-            output,
             rx,
             watcher,
             watched: HashMap::new(),
@@ -237,7 +233,7 @@ impl Watcher {
 
     /// Whether a watch event is relevant for compilation.
     fn is_event_relevant(&self, event: &notify::Event) -> bool {
-        let kind_relevant = match &event.kind {
+        match &event.kind {
             notify::EventKind::Any => true,
             notify::EventKind::Access(_) => false,
             notify::EventKind::Create(_) => true,
@@ -250,22 +246,7 @@ impl Watcher {
             },
             notify::EventKind::Remove(_) => true,
             notify::EventKind::Other => false,
-        };
-
-        if !kind_relevant {
-            return false;
         }
-
-        // Never recompile because the output file changed.
-        if event
-            .paths
-            .iter()
-            .all(|path| is_same_file(path, &self.output).unwrap_or(false))
-        {
-            return false;
-        }
-
-        true
     }
 }