[Libguestfs] [PATCH] customize: fix --upload to FAT partition (RHBZ#1196101)

[Pino Toscano]

On Wednesday 25 March 2015 15:41:15 Maros Zatko wrote:
> FAT doesn't support file ownership, so show warning instead
> of error.
> ---
>  customize/customize_run.ml | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/customize/customize_run.ml b/customize/customize_run.ml
> index dbb77df..306b7f2 100644
> --- a/customize/customize_run.ml
> +++ b/customize/customize_run.ml
> @@ -290,7 +290,10 @@ exec >>%s 2>&1
>        let perms = statbuf.st_perm land 0o7777 (* sticky & set*id *) in
>        g#chmod perms dest;
>        let uid, gid = statbuf.st_uid, statbuf.st_gid in
> -      g#chown uid gid dest
> +      let chown () =
> +        try g#chown uid gid dest
> +        with Guestfs.Error e -> warning "%s" e in
> +      chown ()

This will reduce any chown failure into a warning, which is not
a great idea when ownership handling is supported.

You should detect ENOTSUP, and only in that case demote the error
into a warning (or even an information message, since this happens
while uploading a file).

-- 
Pino Toscano