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refactor(dist/component/package): make DirectoryPackage::install() async #4595

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refactor(dist/component/package): make DirectoryPackage::install() async #4595

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refactor(dist/component/package): make `DirectoryPackage::install()` …
rami3l Nov 11, 2025
bfade28
feat(dist/component/package): yield periodically to async runtime in …
rami3l Nov 11, 2025
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9 changes: 9 additions & 0 deletions src/dist/component/package.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ use std::mem;
use std::ops::Deref;
use std::path::{Path, PathBuf};
use std::sync::OnceLock;
use std::time::{Duration, Instant};

use anyhow::{Context, Result, anyhow, bail};
use tar::EntryType;
Expand Down Expand Up @@ -108,7 +109,15 @@ impl<P: Deref<Target = Path>> DirectoryPackage<P> {
let manifest = utils::read_file("package manifest", &root.join("manifest.in"))?;
let mut builder = target.add(name, tx);

let yield_timeout = Duration::from_millis(50);
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@djc djc Nov 11, 2025

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This is pretty short -- have you tried with longer intervals, like 250/500/1000ms?

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@rami3l rami3l Nov 11, 2025

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No significant changes on my side with either of those values: the installation is always ~2x slower than latest.

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@djc djc Nov 11, 2025

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Wow, that seems very surprising.

let mut last_yield = Instant::now();
for l in manifest.lines() {
if Instant::now().duration_since(last_yield) > yield_timeout {
// Yield to the async runtime to keep things moving
tokio::task::yield_now().await;
last_yield = Instant::now();
}

let part = ComponentPart::decode(l)
.ok_or_else(|| RustupError::CorruptComponent(name.to_owned()))?;

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