aleleba/vectorcraft
1
0
Fork 0
mirror of https://github.com/storytold/vectorcraft.git synced 2026-10-26 10:47:11 -06:00
Code Issues Packages Projects Releases Wiki Activity

CLI: a closed stdout ends vectorcraft-cli quietly

Browse Source 
`vectorcraft-cli commands | head -1` panicked and exited with status 101:

  thread 'main' panicked at library/std/src/io/stdio.rs:1168:9:
  failed printing to stdout: Broken pipe (os error 32)

println! and print! panic when stdout is closed. Output now goes through
outln! and out!, which end the program with status 0 on a broken pipe (the
reader has what it wanted) and report any other write error on stderr with
status 1.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
japbcoelho
2026-10-05 23:09:22 -03:00
co-authored by Claude Opus 5.5
parent 2c02502f43
commit 32f73e9cce
3 changed files with 57 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files
apps/vectorcraft-cli/src/perf.rs
+6 -6
View File
@@ -81,14 +81,14 @@ pub fn run(args: &[String]) -> Result<(), String> {
}
let cores = std::thread::available_parallelism().map_or(1, |c| c.get());
let load = load_average();
println!("VectorCraft performance budgets — {n} paths, {cores} cores, load average {}", load.map_or("?".into(), |l| format!("{l:.1}")));
outln!("VectorCraft performance budgets — {n} paths, {cores} cores, load average {}", load.map_or("?".into(), |l| format!("{l:.1}")));
let noisy = load.is_some_and(|l| l > cores as f64 * 0.75);
if noisy {
println!("WARNING: the machine is busy; wall-clock timings below are not trustworthy.");
outln!("WARNING: the machine is busy; wall-clock timings below are not trustworthy.");
}
let t = Instant::now();
let doc = synthetic(n)?;
println!(" (built in {:.0} ms)", t.elapsed().as_secs_f64() * 1000.0);
outln!(" (built in {:.0} ms)", t.elapsed().as_secs_f64() * 1000.0);
let mut rows: Vec<(&str, f64, f64)> = vec![];
let opts = RenderOptions::default();
@@ -150,16 +150,16 @@ pub fn run(args: &[String]) -> Result<(), String> {
}
let mut over = 0;
println!(" {:<40} {:>10} {:>10}", "", "measured", "budget");
outln!(" {:<40} {:>10} {:>10}", "", "measured", "budget");
for (name, ms, budget) in &rows {
let ok = ms <= budget;
over += usize::from(!ok);
println!(" {name:<40} {ms:>8.2} ms {budget:>7.0} ms {}", if ok { "ok" } else { "OVER" });
outln!(" {name:<40} {ms:>8.2} ms {budget:>7.0} ms {}", if ok { "ok" } else { "OVER" });
}
match (over, noisy) {
(0, _) => Ok(()),
(_, true) => {
println!("{over} over budget, but the machine is busy: re-run when idle.");
outln!("{over} over budget, but the machine is busy: re-run when idle.");
Ok(())
}
_ => Err(format!("{over} budget(s) exceeded")),