Re: [Outreachy][PATCH] abspath: reconcile `dir_exists()` and `is_directory()`
- From
Emily Shaffer <emilyshaffer@google.com>
- Date
- Oct 24, 2019, 20:45 UTC
- Message-ID
- <20191024204500.GG9323@google.com>
- In-Reply-To
- <20191024181344.GD12892@sigill.intra.peff.net>
On Thu, Oct 24, 2019 at 02:13:45PM -0400, Jeff King wrote:
Show 33 quoted lines
> On Thu, Oct 24, 2019 at 01:41:48PM +0200, SZEDER Gábor wrote:
>
> > > diff --git a/builtin/clone.c b/builtin/clone.c
> > > index c46ee29f0a..f89938bf94 100644
> > > --- a/builtin/clone.c
> > > +++ b/builtin/clone.c
> > > @@ -899,12 +899,6 @@ static void dissociate_from_references(void)
> > > free(alternates);
> > > }
> > >
> > > -static int dir_exists(const char *path)
> > > -{
> > > - struct stat sb;
> > > - return !stat(path, &sb);
> >
> > But look at this, it only checks that the given path exists, but it
> > could be a regular file or any other kind of path other than a
> > directory as well!
> >
> > So this function clearly doesn't do what it's name suggests. That's
> > bad.
> >
> > Unfortunately, it gets worse: some of its callsites in
> > 'builtin/clone.c' do expect it to check the existence of _any_ path,
> > not just a directory.
>
> Yes, that's the reason for the funny name (and the fact that it was
> never re-factored to use is_directory() in the first place). There's
> some more discussion in:
>
> https://public-inbox.org/git/xmqqbmi9dw55.fsf@gitster.mtv.corp.google.com/
>
> and its subthread.Hm. Then, is the solution to use dir_exists() for "a directory exists here" and also add path_exists() for "literally anything exists here"? That seems like it's still a pretty minor change. It'd be nice to un-stick our Outreachy applicant :)
- Emily