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Merge pull request #4859 from shinhs0506/cp-perm
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cp: preserve permissions on -r -p --parents
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sylvestre authored May 14, 2023
2 parents 1d0b355 + a817186 commit 24e0bef
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Showing 3 changed files with 61 additions and 29 deletions.
12 changes: 11 additions & 1 deletion src/uu/cp/src/copydir.rs
Original file line number Diff line number Diff line change
Expand Up @@ -404,8 +404,18 @@ pub(crate) fn copy_directory(
Err(e) => show_error!("{}", e),
}
}

// Copy the attributes from the root directory to the target directory.
copy_attributes(root, target, &options.attributes)?;
if options.parents {
let dest = target.join(root.file_name().unwrap());
copy_attributes(root, dest.as_path(), &options.attributes)?;
for (x, y) in aligned_ancestors(root, dest.as_path()) {
copy_attributes(x, y, &options.attributes)?;
}
} else {
copy_attributes(root, target, &options.attributes)?;
}

Ok(())
}

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36 changes: 8 additions & 28 deletions src/uu/cp/src/cp.rs
Original file line number Diff line number Diff line change
Expand Up @@ -1151,14 +1151,20 @@ fn copy_source(
} else {
// Copy as file
let dest = construct_dest_path(source_path, target, target_type, options)?;
copy_file(
let res = copy_file(
progress_bar,
source_path,
dest.as_path(),
options,
symlinked_files,
true,
)
);
if options.parents {
for (x, y) in aligned_ancestors(source, dest.as_path()) {
copy_attributes(x, y, &options.attributes)?;
}
}
res
}
}

Expand Down Expand Up @@ -1704,11 +1710,6 @@ fn copy_file(
}

copy_attributes(source, dest, &options.attributes)?;
if options.parents && should_preserve_attribute(options) {
for (x, y) in aligned_ancestors(source, dest) {
copy_attributes(x, y, &options.attributes)?;
}
}

if let Some(progress_bar) = progress_bar {
progress_bar.inc(fs::metadata(source)?.len());
Expand Down Expand Up @@ -1758,27 +1759,6 @@ fn copy_helper(
Ok(())
}

fn should_preserve_attribute(options: &Options) -> bool {
let checks = [
&options.attributes.mode,
&options.attributes.timestamps,
&options.attributes.links,
&options.attributes.context,
&options.attributes.xattr,
];

#[cfg(unix)]
let checks = [
checks.as_slice(),
[&options.attributes.ownership].as_slice(),
]
.concat();

checks
.iter()
.any(|attr| matches!(attr, Preserve::Yes { .. }))
}

// "Copies" a FIFO by creating a new one. This workaround is because Rust's
// built-in fs::copy does not handle FIFOs (see rust-lang/rust/issues/79390).
#[cfg(unix)]
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42 changes: 42 additions & 0 deletions tests/by-util/test_cp.rs
Original file line number Diff line number Diff line change
Expand Up @@ -1115,6 +1115,48 @@ fn test_cp_parents_with_permissions_copy_file() {
}
}

#[test]
fn test_cp_parents_with_permissions_copy_dir() {
let (at, mut ucmd) = at_and_ucmd!();

let dir1 = "dir";
let dir2 = "p1/p2";
let file = "p1/p2/file";

at.mkdir(dir1);
at.mkdir_all(dir2);
at.touch(file);

let p1_mode = 0o0777;
let p2_mode = 0o0711;
let file_mode = 0o0702;

#[cfg(unix)]
{
at.set_mode("p1", p1_mode);
at.set_mode("p1/p2", p2_mode);
at.set_mode(file, file_mode);
}

ucmd.arg("-p")
.arg("--parents")
.arg("-r")
.arg(dir2)
.arg(dir1)
.succeeds();

#[cfg(all(unix, not(target_os = "freebsd")))]
{
let p1_metadata = at.metadata("p1");
let p2_metadata = at.metadata("p1/p2");
let file_metadata = at.metadata(file);

assert_metadata_eq!(p1_metadata, at.metadata("dir/p1"));
assert_metadata_eq!(p2_metadata, at.metadata("dir/p1/p2"));
assert_metadata_eq!(file_metadata, at.metadata("dir/p1/p2/file"));
}
}

#[test]
#[cfg(unix)]
fn test_cp_writable_special_file_permissions() {
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