bug#27085: dired-do-compress on symlinks should bail out with a warning

bug#27085: dired-do-compress on symlinks should bail out with a warning

[積丹尼 Dan Jacobson]

Z runs the command dired-do-compress.
But when run on
  lrwxrwxrwx  1 jidanni    34 05-26 15:51 local.osm.gz -> /cf/updates/no_backup/local.osm.gz

Compress or uncompress local.osm.gz? (y or n) y
Failed to compress/home/jidanni/mapping/taipower/opendata/local.osm.gz

1. I thought it would try to UNcompress.
2. Well it doesn't work on symlinks at all.
So it should say
"Sorry that is a symlink. I'm not ready for that".
Or like
$ gunzip local.osm.gz
gzip: local.osm.gz: Too many levels of symbolic links

I.e., warn and give up. Like gunzip.

bug#27085: dired-do-compress on symlinks should bail out with a warning

[Lars Ingebrigtsen]

積丹尼 Dan Jacobson <jidanni@jidanni.org> writes:

> Z runs the command dired-do-compress.
> But when run on
>   lrwxrwxrwx 1 jidanni 34 05-26 15:51 local.osm.gz ->
> /cf/updates/no_backup/local.osm.gz
>
> Compress or uncompress local.osm.gz? (y or n) y

I tried this on the Emacs trunk, and it didn't query me for anything.

> Failed to compress/home/jidanni/mapping/taipower/opendata/local.osm.gz
>
> 1. I thought it would try to UNcompress.
> 2. Well it doesn't work on symlinks at all.
> So it should say
> "Sorry that is a symlink. I'm not ready for that".
> Or like
> $ gunzip local.osm.gz
> gzip: local.osm.gz: Too many levels of symbolic links
>
> I.e., warn and give up. Like gunzip.

I get

Failed to compress/tmp/bar.gz

(I've now fixed the missing space and added (un).)

But warn and give up is what dired does here, so I don't think there's
anything to fix.  Closing.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no