mv: preserve the xattr

Should make tests/mv/acl pass

.vscode/cspell.dictionaries/jargon.wordlist.txt

@@ -42,6 +42,7 @@ fileio
 filesystem
 filesystems
 flamegraph
+fsxattr
 fullblock
 getfacl
 gibi
@@ -133,6 +134,7 @@ urand
 whitespace
 wordlist
 wordlists
+xattrs
 
 # * abbreviations
 consts

src/uu/mv/Cargo.toml

@@ -21,6 +21,7 @@ indicatif = { workspace = true }
 uucore = { workspace = true, features = [
   "backup-control",
   "fs",
+  "fsxattr",
   "update-control",
 ] }
 

src/uu/mv/src/mv.rs

@@ -27,7 +27,10 @@ use uucore::fs::{
     are_hardlinks_or_one_way_symlink_to_same_file, are_hardlinks_to_same_file,
     path_ends_with_terminator,
 };
+#[cfg(all(unix, not(target_os = "macos")))]
+use uucore::fsxattr;
 use uucore::update_control;
+
 // These are exposed for projects (e.g. nushell) that want to create an `Options` value, which
 // requires these enums
 pub use uucore::{backup_control::BackupMode, update_control::UpdateMode};
@@ -631,6 +634,10 @@ fn rename_with_fallback(
                     None
                 };
 
+            #[cfg(all(unix, not(target_os = "macos")))]
+            let xattrs =
+                fsxattr::retrieve_xattrs(from).unwrap_or_else(|_| std::collections::HashMap::new());
+
             let result = if let Some(ref pb) = progress_bar {
                 move_dir_with_progress(from, to, &options, |process_info: TransitProcess| {
                     pb.set_position(process_info.copied_bytes);
@@ -641,6 +648,9 @@ fn rename_with_fallback(
                 move_dir(from, to, &options)
             };
 
+            #[cfg(all(unix, not(target_os = "macos")))]
+            fsxattr::apply_xattrs(to, xattrs).unwrap();
+
             if let Err(err) = result {
                 return match err.kind {
                     fs_extra::error::ErrorKind::PermissionDenied => Err(io::Error::new(
@@ -651,6 +661,11 @@ fn rename_with_fallback(
                 };
             }
         } else {
+            #[cfg(all(unix, not(target_os = "macos")))]
+            fs::copy(from, to)
+                .and_then(|_| fsxattr::copy_xattrs(&from, &to))
+                .and_then(|_| fs::remove_file(from))?;
+            #[cfg(any(target_os = "macos", not(unix)))]
             fs::copy(from, to).and_then(|_| fs::remove_file(from))?;
         }
     }

src/uucore/Cargo.toml

@@ -78,7 +78,7 @@ encoding = ["data-encoding", "data-encoding-macro", "z85", "thiserror"]
 entries = ["libc"]
 fs = ["dunce", "libc", "winapi-util", "windows-sys"]
 fsext = ["libc", "time", "windows-sys"]
-fsxattr = [ "xattr" ]
+fsxattr = ["xattr"]
 lines = []
 format = ["itertools"]
 mode = ["libc"]

tests/by-util/test_mv.rs

@@ -1569,6 +1569,47 @@ fn test_mv_dir_into_path_slash() {
     assert!(at.dir_exists("f/b"));
 }
 
+#[cfg(all(unix, not(target_os = "macos")))]
+#[test]
+fn test_acl() {
+    use std::process::Command;
+
+    use crate::common::util::compare_xattrs;
+
+    let scene = TestScenario::new(util_name!());
+    let at = &scene.fixtures;
+    let path1 = "a";
+    let path2 = "b";
+    let file = "a/file";
+    let file_target = "b/file";
+    at.mkdir(path1);
+    at.mkdir(path2);
+    at.touch(file);
+
+    let path = at.plus_as_string(file);
+    // calling the command directly. xattr requires some dev packages to be installed
+    // and it adds a complex dependency just for a test
+    match Command::new("setfacl")
+        .args(["-m", "group::rwx", &path1])
+        .status()
+        .map(|status| status.code())
+    {
+        Ok(Some(0)) => {}
+        Ok(_) => {
+            println!("test skipped: setfacl failed");
+            return;
+        }
+        Err(e) => {
+            println!("test skipped: setfacl failed with {}", e);
+            return;
+        }
+    }
+
+    scene.ucmd().arg(&path).arg(path2).succeeds();
+
+    assert!(compare_xattrs(&file, &file_target));
+}
+
 // Todo:
 
 // $ at.touch a b