Checks for case insensitive and name-mangling filesystems in purge [Was: Cleanup of the purge extension]

[Alexis S. L. Carvalho]

Thus spake Emanuele Aina:
> Alexis S. L. Carvalho accettò:
> >Looks OK.  Can you send the patch?
> 
> Here it is.

I've pushed it to crew with some tiny edits (added some missing calls to
repo.wjoin during the util.lstats and some style fixes).

> Can you please use the <em at nerd.ocracy.org> address, instead of the one
> in the From: field?
> 
> I should change the subscription to the list, but I'm just too lazy... :)

Sure :)

> I've also updated the automatic tests to check the behavior with missing
> files and with the --force option. Obviously I cannot test the behavior
> with a case insensitive fs.
> 
> To check if the command failed I've used this:
> 
>     hg purge -v 2> /dev/null
>     if [ $? -ne 0 ]; then
>         echo "refused to run"
>     fi
> 
> Is this ok?

I guess so - I added a check to make sure the untracked file is
still around after that, just in case.

> If you think that purge is ready for hgext the old patch I've sent
> should still apply. :)

Also in crew.

Thanks

Alexis