(cargo) not installing with +x permissions (stat? chmod?)

[killerswan]

The quick fix may be to just run the system cp binary on unix platforms, but tracking down a relatively cross-platform way to stat and chmod files is probably worth the trouble.

Then the os::copy_file function should perhaps be modified to copy permissions, too...

There are a whole lot of posix functions in libc.rs, but I haven't seen a stat or fstat function there yet. Am I missing it or is this a gap?

[killerswan]

cc @erickt

So this is an example which shows how to use libc::chmod, but I haven't found or created a way to use stat to get the permission I want to copy in the first place yet.

fn chmod(filepath: str, mode: i32) -> i32 {
   import libc::types::os::arch::posix88::mode_t;

   ret str::as_c_str(filepath, {|fp| libc::chmod(fp, mode as mode_t) });
}

fn cp(src: str, dest: str) {
   // What I'd like to do is something like so,
   // but where's the stat function?
   //
   //let st = libc::stat(src);
   //let mm = st.mode;

   let mm = 493_i32; /* octal 755 */
   os::copy_file(src, dest);
   chmod(dest, mm);
}

fn main() {
   cp("./dir/a", "./dir2/a");
}

[killerswan]

Title changed to reflect further information: stat simply hasn't been added to the libc bindings yet.

[killerswan]

Actually, I don't need to track this in an issue.