perf: do not listen for file changes in inactive tabs (#2958)

yazi-core/src/mgr/commands/watch.rs

@@ -1,4 +1,4 @@
-use std::collections::HashSet;
+use std::iter;
 
 use yazi_parser::mgr::WatchOpt;
 
@@ -7,16 +7,10 @@ use crate::mgr::Mgr;
 impl Mgr {
 	#[yazi_codegen::command]
 	pub fn watch(&mut self, _: WatchOpt) {
-		let mut to_watch = HashSet::with_capacity(3 * self.tabs.len());
+		let it = iter::once(self.tabs.active().cwd())
-		for tab in self.tabs.iter() {
+			.chain(self.tabs.parent().map(|p| &p.url))
-			to_watch.insert(tab.cwd());
+			.chain(self.tabs.hovered().filter(|h| h.is_dir()).map(|h| &h.url));
-			if let Some(ref p) = tab.parent {
+
-				to_watch.insert(&p.url);
+		self.watcher.watch(it);
-			}
-			if let Some(h) = tab.hovered().filter(|&h| h.is_dir()) {
-				to_watch.insert(&h.url);
-			}
-		}
-		self.watcher.watch(to_watch);
 	}
 }

yazi-core/src/mgr/tabs.rs

@@ -51,6 +51,9 @@ impl Tabs {
 	#[inline]
 	pub(super) fn active_mut(&mut self) -> &mut Tab { &mut self.items[self.cursor] }
 
+	#[inline]
+	pub fn parent(&self) -> Option<&Folder> { self.active().parent.as_ref() }
+
 	#[inline]
 	pub fn current(&self) -> &Folder { &self.active().current }
 

yazi-core/src/mgr/watcher.rs

@@ -51,9 +51,8 @@ impl Watcher {
 		Self { in_tx, out_tx }
 	}
 
-	pub(super) fn watch(&mut self, mut new: HashSet<&Url>) {
+	pub(super) fn watch<'a>(&mut self, it: impl Iterator<Item = &'a Url>) {
-		new.retain(|&u| u.is_regular());
+		self.in_tx.send(it.filter(|u| u.is_regular()).cloned().collect()).ok();
-		self.in_tx.send(new.into_iter().cloned().collect()).ok();
 	}
 
 	pub(super) fn push_files(&self, urls: Vec<Url>) {

yazi-parser/src/input/escape.rs

@@ -1,11 +1 @@
-use yazi_shared::event::CmdCow;
+pub type EscapeOpt = crate::VoidOpt;
-
-pub struct EscapeOpt;
-
-impl From<CmdCow> for EscapeOpt {
-	fn from(_: CmdCow) -> Self { Self }
-}
-
-impl From<()> for EscapeOpt {
-	fn from(_: ()) -> Self { Self }
-}

yazi-parser/src/lib.rs

@@ -1 +1,3 @@
 yazi_macro::mod_pub!(cmp confirm help input mgr notify pick spot tab tasks which);
+
+yazi_macro::mod_flat!(void);

yazi-parser/src/mgr/unyank.rs

@@ -1,11 +1 @@
-use yazi_shared::event::CmdCow;
+pub type UnyankOpt = crate::VoidOpt;
-
-pub struct UnyankOpt;
-
-impl From<CmdCow> for UnyankOpt {
-	fn from(_: CmdCow) -> Self { Self }
-}
-
-impl From<()> for UnyankOpt {
-	fn from(_: ()) -> Self { Self }
-}

yazi-parser/src/mgr/watch.rs

@@ -1,11 +1 @@
-use yazi_shared::event::CmdCow;
+pub type WatchOpt = crate::VoidOpt;
-
-pub struct WatchOpt;
-
-impl From<CmdCow> for WatchOpt {
-	fn from(_: CmdCow) -> Self { Self }
-}
-
-impl From<()> for WatchOpt {
-	fn from((): ()) -> Self { Self }
-}

yazi-parser/src/spot/close.rs

@@ -1,11 +1 @@
-use yazi_shared::event::CmdCow;
+pub type CloseOpt = crate::VoidOpt;
-
-pub struct CloseOpt;
-
-impl From<CmdCow> for CloseOpt {
-	fn from(_: CmdCow) -> Self { Self }
-}
-
-impl From<()> for CloseOpt {
-	fn from(_: ()) -> Self { Self }
-}

yazi-parser/src/tab/follow.rs

@@ -1,7 +1 @@
-use yazi_shared::event::CmdCow;
+pub type FollowOpt = crate::VoidOpt;
-
-pub struct FollowOpt;
-
-impl From<CmdCow> for FollowOpt {
-	fn from(_: CmdCow) -> Self { Self }
-}

yazi-parser/src/tab/leave.rs

@@ -1,11 +1 @@
-use yazi_shared::event::CmdCow;
+pub type LeaveOpt = crate::VoidOpt;
-
-pub struct LeaveOpt;
-
-impl From<()> for LeaveOpt {
-	fn from(_: ()) -> Self { Self }
-}
-
-impl From<CmdCow> for LeaveOpt {
-	fn from(_: CmdCow) -> Self { Self }
-}

yazi-parser/src/tasks/close.rs

@@ -1,11 +1 @@
-use yazi_shared::event::CmdCow;
+pub type CloseOpt = crate::VoidOpt;
-
-pub struct CloseOpt;
-
-impl From<CmdCow> for CloseOpt {
-	fn from(_: CmdCow) -> Self { Self }
-}
-
-impl From<()> for CloseOpt {
-	fn from(_: ()) -> Self { Self }
-}

yazi-parser/src/tasks/show.rs

@@ -1,11 +1 @@
-use yazi_shared::event::CmdCow;
+pub type ShowOpt = crate::VoidOpt;
-
-pub struct ShowOpt;
-
-impl From<CmdCow> for ShowOpt {
-	fn from(_: CmdCow) -> Self { Self }
-}
-
-impl From<()> for ShowOpt {
-	fn from(_: ()) -> Self { Self }
-}

yazi-parser/src/void.rs

@@ -0,0 +1,11 @@
+use yazi_shared::event::CmdCow;
+
+pub struct VoidOpt;
+
+impl From<CmdCow> for VoidOpt {
+	fn from(_: CmdCow) -> Self { Self }
+}
+
+impl From<()> for VoidOpt {
+	fn from(_: ()) -> Self { Self }
+}

yazi-plugin/preset/plugins/archive.lua

@@ -8,7 +8,7 @@ function M:peek(job)
 		return require("empty").msg(
 			job,
 			code == 2 and "File list in this archive is encrypted"
-				or "Failed to start both `7zz` and `7z`. Do you have 7-zip installed?"
+				or "Failed to start either `7zz` or `7z`. Do you have 7-zip installed?"
 		)
 	end
 
@@ -65,7 +65,7 @@ function M.spawn_7z(args)
 
 	local child = try("7zz") or try("7z")
 	if not child then
-		return ya.err("Failed to start both `7zz` and `7z`, error: " .. last_err)
+		return ya.err("Failed to start either `7zz` or `7z`, error: " .. last_err)
 	end
 	return child, last_err
 end

yazi-plugin/preset/plugins/extract.lua

@@ -53,7 +53,7 @@ function M:try_with(from, pwd, to)
 	local archive = require("archive")
 	local child, err = archive.spawn_7z { "x", "-aou", "-sccUTF-8", "-p" .. pwd, "-o" .. tostring(tmp), tostring(from) }
 	if not child then
-		fail("Failed to start both `7zz` and `7z`, error: " .. err)
+		fail("Failed to start either `7zz` or `7z`, error: " .. err)
 	end
 
 	local output, err = child:wait_with_output()