Do not show (running) when opening picker (#8148)

* only stream from background thread if necessary

If the file transversal is longer shorter 30ms it will now be performed
on the main thread. Spawning a thread can take a while (or rather it
takes a while until that thread is scheduled) so the files can actually
take a while to show up. This prevents the `(running)` indicator from
briefly showing up when opening the file picker in a small directory.

* run partial cargo update

2 files changed, 32 insertions, 45 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 95d0275d..2b0527c3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -19,17 +19,6 @@ checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
 [[package]]
 name = "ahash"
-version = "0.7.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcb51a0695d8f838b1ee009b3fbf66bda078cd64590202a864a8f3e8c4315c47"
-dependencies = [
- "getrandom",
- "once_cell",
- "version_check",
-]
-
-[[package]]
-name = "ahash"
 version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2c99f64d1e06488f620f932677e24bc6e2897582980441ae90a671415bd7ec2f"
@@ -107,7 +96,7 @@ dependencies = [
  "cc",
  "cfg-if",
  "libc",
- "miniz_oxide 0.7.1",
+ "miniz_oxide",
  "object",
  "rustc-demangle",
 ]
@@ -495,12 +484,12 @@ dependencies = [
 
 [[package]]
 name = "flate2"
-version = "1.0.25"
+version = "1.0.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8a2db397cb1c8772f31494cb8917e48cd1e64f0fa7efac59fbd741a0a8ce841"
+checksum = "c6c98ee8095e9d1dcbf2fcc6d95acccb90d1c81db1e44725c6a984b1dbdfb010"
 dependencies = [
  "crc32fast",
- "miniz_oxide 0.6.2",
+ "miniz_oxide",
 ]
 
 [[package]]
@@ -1237,9 +1226,6 @@ name = "hashbrown"
 version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
-dependencies = [
- "ahash 0.7.6",
-]
 
 [[package]]
 name = "hashbrown"
@@ -1247,7 +1233,7 @@ version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2c6201b9ff9fd90a5a3bac2e56a830d0caa509576f0e503818ee82c181b3437a"
 dependencies = [
- "ahash 0.8.3",
+ "ahash",
  "allocator-api2",
 ]
 
@@ -1255,7 +1241,7 @@ dependencies = [
 name = "helix-core"
 version = "0.6.0"
 dependencies = [
- "ahash 0.8.3",
+ "ahash",
  "arc-swap",
  "bitflags 2.4.0",
  "chrono",
@@ -1546,7 +1532,7 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e98c1d0ad70fc91b8b9654b1f33db55e59579d3b3de2bffdced0fdb810570cb8"
 dependencies = [
- "ahash 0.8.3",
+ "ahash",
  "hashbrown 0.12.3",
 ]
 
@@ -1724,15 +1710,6 @@ checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
 
 [[package]]
 name = "miniz_oxide"
-version = "0.6.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b275950c28b37e794e8c55d88aeb5e139d0ce23fdbbeda68f8d7174abdf9e8fa"
-dependencies = [
- "adler",
-]
-
-[[package]]
-name = "miniz_oxide"
 version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e7810e0be55b428ada41041c41f32c9f1a42817901b4ccf45fa3d4b6561e74c7"
@@ -1764,9 +1741,9 @@ dependencies = [
 
 [[package]]
 name = "nucleo"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ccab936f2c8ad271bb31430944d98d358f74153566ea323265497f5639b11b6"
+checksum = "ae5331f4bcce475cf28cb29c95366c3091af4b0aa7703f1a6bc858f29718fdf3"
 dependencies = [
  "nucleo-matcher",
  "parking_lot",
@@ -2509,13 +2486,9 @@ checksum = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"
 
 [[package]]
 name = "unicode-linebreak"
-version = "0.1.4"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5faade31a542b8b35855fff6e8def199853b2da8da256da52f52f1316ee3137"
-dependencies = [
- "hashbrown 0.12.3",
- "regex",
-]
+checksum = "3b09c83c3c29d37506a3e260c08c03743a6bb66a9cd432c6934ab501a190571f"
 
 [[package]]
 name = "unicode-normalization"
diff --git a/helix-term/src/ui/mod.rs b/helix-term/src/ui/mod.rs
index b2160108..12ac1783 100644
--- a/helix-term/src/ui/mod.rs
+++ b/helix-term/src/ui/mod.rs
@@ -190,7 +190,7 @@ pub fn file_picker(root: PathBuf, config: &helix_view::editor::Config) -> Picker
         .build()
         .expect("failed to build excluded_types");
     walk_builder.types(excluded_types);
-    let files = walk_builder.build().filter_map(|entry| {
+    let mut files = walk_builder.build().filter_map(|entry| {
         let entry = entry.ok()?;
         if !entry.file_type()?.is_file() {
             return None;
@@ -211,13 +211,27 @@ pub fn file_picker(root: PathBuf, config: &helix_view::editor::Config) -> Picker
     })
     .with_preview(|_editor, path| Some((path.clone().into(), None)));
     let injector = picker.injector();
-    std::thread::spawn(move || {
-        for file in files {
-            if injector.push(file).is_err() {
-                break;
-            }
+    let timeout = std::time::Instant::now() + std::time::Duration::from_millis(30);
+
+    let mut hit_timeout = false;
+    for file in &mut files {
+        if injector.push(file).is_err() {
+            break;
         }
-    });
+        if std::time::Instant::now() >= timeout {
+            hit_timeout = true;
+            break;
+        }
+    }
+    if hit_timeout {
+        std::thread::spawn(move || {
+            for file in files {
+                if injector.push(file).is_err() {
+                    break;
+                }
+            }
+        });
+    }
     picker
 }