On Wed, Sep 11, 2013 at 02:48:51PM +0700, Duy Nguyen wrote:
> On Wed, Sep 11, 2013 at 2:13 AM, John Keeping <j...@keeping.me.uk> wrote:
> > Instead of re-implementing the "remove trailing slashes" loop in
> > builtin/rm.c just pass PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP to
> > parse_pathspec.
> >
> > Signed-off-by: John Keeping <j...@keeping.me.uk>
> > ---
> >  builtin/rm.c | 20 ++++----------------
> >  1 file changed, 4 insertions(+), 16 deletions(-)
> >
> > diff --git a/builtin/rm.c b/builtin/rm.c
> > index 9b59ab3..3a0e0ea 100644
> > --- a/builtin/rm.c
> > +++ b/builtin/rm.c
> > @@ -298,22 +298,10 @@ int cmd_rm(int argc, const char **argv, const char 
> > *prefix)
> >         if (read_cache() < 0)
> >                 die(_("index file corrupt"));
> >
> > -       /*
> > -        * Drop trailing directory separators from directories so we'll find
> > -        * submodules in the index.
> > -        */
> > -       for (i = 0; i < argc; i++) {
> > -               size_t pathlen = strlen(argv[i]);
> > -               if (pathlen && is_dir_sep(argv[i][pathlen - 1]) &&
> > -                   is_directory(argv[i])) {
> > -                       do {
> > -                               pathlen--;
> > -                       } while (pathlen && is_dir_sep(argv[i][pathlen - 
> > 1]));
> > -                       argv[i] = xmemdupz(argv[i], pathlen);
> > -               }
> > -       }
> > -
> > -       parse_pathspec(&pathspec, 0, PATHSPEC_PREFER_CWD, prefix, argv);
> > +       parse_pathspec(&pathspec, 0,
> > +                      PATHSPEC_PREFER_CWD |
> > +                      PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP,
> 
> I notice that _CHEAP implementation and the removed code are not
> exactly the same. But I think they have the same purpose so it's
> probably ok even there are some subtle behavioral changes.

Providing that there's only one trailing slash, the user-visible effect
should be the same since the only case affected by that is submodules.
In fact _CHEAP does better in the case where the submodule does not
exist in the working tree.

> You may want to improve _CHEAP to remove consecutive trailing slashes
> (i.e. foo//// -> foo) too. And maybe is is_dir_sep() instead of
> explicit == '/' comparison in there.

Sounds good, I'll try to look at that tonight.

> > +                      prefix, argv);
> >         refresh_index(&the_index, REFRESH_QUIET, &pathspec, NULL, NULL);
> >
> >         seen = xcalloc(pathspec.nr, 1);
--
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