Thanks for your input.
> > -static const char upload_pack_usage[] = "git upload-pack [--strict]
> > [--timeout=<n>] <dir>";
> > +static const char * const upload_pack_usage[] = {
> > + N_("git upload-pack [--strict] [--timeout=<n>] <dir>"),
> > + NULL
> > +};
>
> Do we need to enumerate the options here now? The usage message should
> list the options from "struct options", which make these redundant.
>
> Something like:
>
> git -upload-pack [options] <dir>
>
> probably makes more sense.
>
Yes, you are right.
> Of course, it's hard to read the usage message because...
>
> > + struct option options[] = {
> > + OPT_HIDDEN_BOOL(0, "stateless-rpc", &stateless_rpc, NULL),
> > + OPT_HIDDEN_BOOL(0, "advertise-refs", &advertise_refs, NULL),
> > + OPT_BOOL(0, "strict", &strict, NULL),
> > + OPT_INTEGER(0, "timeout", &timeout, NULL),
> > + OPT_END()
> > + };
>
> You've left the description text for each of these options as NULL, so
> running "git-upload-pack -h" segfaults.
>
> I'm not sure whether it is worth hiding the first two options. We
> typically hide "internal" options like this for user-facing programs, so
> as not to clutter the "-h" output. But upload-pack isn't a user-facing
> program. Anybody who is calling it directly with "-h" may be interested
> in even its more esoteric options.
>
In fact, to do this, I looked at builtin/receive-pack.c, where the parser API
was already implemented, and these first two options were hidden. There were
also no description for any options, so I thought it was not needed. Maybe we
could update this file too ?
> As a style nit, we usually spell comparison-with-zero as just:
>
> if (timeout)
> daemon_mode = 1;
Because timeout is an int, I personnally think it is more understable to
treat it as it. But I'll update itfor consistency.
> > + argc = parse_options(argc, (const char **)argv, NULL, options,
> > upload_pack_usage, 0);
>
> Perhaps this is a good opportunity to use "const" in the declaration of
> main(), as most other git programs do. Then you can drop this cast.
>
Ok.
> > setup_path();
> >
> > - dir = argv[i];
> > + dir = argv[0];
> >
> > if (!enter_repo(dir, strict))
> > die("'%s' does not appear to be a git repository", dir);
>
> Prior to your patch, we used to check:
>
> - if (i != argc-1)
> - usage(upload_pack_usage);
>
> which ensured that "dir" was non-NULL. But with your patch, we may pass
> NULL to enter_repo. It fortunately catches this, but then we pass the
> NULL to die, which can segfault (though on glibc systems, stdio is kind
> enough to replace it with the "(null)").
>
> Related, we silently accept extra arguments after your patch (whereas
> before we showed the usage message). You probably want to check "argc ==
> 1", and otherwise show the usage message.
Ok.
-Antoine
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