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perf(node/fs/copy): reduce metadata lookups copying directory (#27495)

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David Sherret 2024-12-30 00:36:29 -05:00 • committed by GitHub
parent 5194222e02
commit fd8400eaec
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1 changed files with 19 additions and 15 deletions
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34
ext/fs/std_fs.rs
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@ -723,30 +723,34 @@ fn cp(from: &Path, to: &Path) -> FsResult<()> {
}
}
match (fs::metadata(to), fs::symlink_metadata(to)) {
(Ok(m), _) if m.is_dir() => cp_(
source_meta,
from,
&to.join(from.file_name().ok_or_else(|| {
io::Error::new(
io::ErrorKind::InvalidInput,
"the source path is not a valid file",
)
})?),
)?,
(_, Ok(m)) if is_identical(&source_meta, &m) => {
if let Ok(m) = fs::metadata(to) {
if m.is_dir() {
return cp_(
source_meta,
from,
&to.join(from.file_name().ok_or_else(|| {
io::Error::new(
io::ErrorKind::InvalidInput,
"the source path is not a valid file",
)
})?),
);
}
}
if let Ok(m) = fs::symlink_metadata(to) {
if is_identical(&source_meta, &m) {
return Err(
io::Error::new(
io::ErrorKind::InvalidInput,
"the source and destination are the same file",
)
.into(),
)
);
}
_ => cp_(source_meta, from, to)?,
}
Ok(())
cp_(source_meta, from, to)
}
#[cfg(not(windows))]