Re: Coreutils enhancement: ls: add colorization of mountpoints

[Dragan Simic]

On 2023-10-16 23:50, Parke wrote:
> Hello, coreutils@gnu.org,

Hello! :)

> I am contemplating extending ls so that mountpoints can be colorized
> (via LS_COLORS).
>
> If I implement this change, I would be happy to contribute it to
> Coreutils, if the maintainers want this change.
>
> My use case:  I want to be able to quickly distinguish Btrfs
> subvolumes (and ZFS datasets) from plain directories.
>
> I'm hoping that a mountpoint can be detected by comparing the st_dev
> fields returned by calling stat() on a directory and on that
> directory's parent.

Wouldn't that actually introduce a significant performance overhead?

> There are some related choices:  Should non-directory mounts also be
> colorable?  Should mount colors be subdivided as directories are,
> namely: based on the sticky-bit and the other-writable-bit.
>
> Comments welcome.