Am 03.09.2014 um 21:42 schrieb Junio C Hamano:
> Junio C Hamano <gits...@pobox.com> writes:
>
>>> diff --git a/builtin/revert.c b/builtin/revert.c
>>> index f9ed5bd..831c2cd 100644
>>> --- a/builtin/revert.c
>>> +++ b/builtin/revert.c
>>> @@ -91,6 +91,7 @@ static void parse_args(int argc, const char **argv,
>>> struct replay_opts *opts)
>>> N_("option for merge strategy"), option_parse_x),
>>> { OPTION_STRING, 'S', "gpg-sign", &opts->gpg_sign, N_("key-id"),
>>> N_("GPG sign commit"), PARSE_OPT_OPTARG, NULL, (intptr_t) ""
>>> },
>>> + OPT_BOOL('n', "no-verify", &opts->no_verify, N_("bypass
>>> pre-commit hook")),
>>
>> I doubt we want this option to squat on '-n'; besides, it is already
>> taken by a more often used "--no-commit".
>>
>> I thought that we added sanity checker for the options[] array to
>> parse-options
>> API. I wonder why it did not kick in...
>
> ... because we didn't, not quite.
>
> Perhaps like this?
>
> -- >8 --
> It is easy to overlook an already assigned single-letter option name
> and try to use it for a new one. Help the developer to catch it
> before such a mistake escapes the lab.
>
> Signed-off-by: Junio C Hamano <gits...@pobox.com>
> ---
> diff --git a/parse-options.c b/parse-options.c
> index e7dafa8..b7925c5 100644
> --- a/parse-options.c
> +++ b/parse-options.c
> @@ -347,12 +347,17 @@ static void check_typos(const char *arg, const struct
> option *options)
> static void parse_options_check(const struct option *opts)
> {
> int err = 0;
> + char short_opts[128];
> +
> + memset(short_opts, '\0', sizeof(short_opts));
>
> for (; opts->type != OPTION_END; opts++) {
> if ((opts->flags & PARSE_OPT_LASTARG_DEFAULT) &&
> (opts->flags & PARSE_OPT_OPTARG))
> err |= optbug(opts, "uses incompatible flags "
> "LASTARG_DEFAULT and OPTARG");
> + if (opts->short_name && short_opts[opts->short_name]++)
> + err |= optbug(opts, "short name already used");
> if (opts->flags & PARSE_OPT_NODASH &&
> ((opts->flags & PARSE_OPT_OPTARG) ||
> !(opts->flags & PARSE_OPT_NOARG) ||
>
Compact and useful, I like it.
You might want to squash in something like this, though. Without it
t1502 fails because -b is defined twice there.
---
t/t1502-rev-parse-parseopt.sh | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/t/t1502-rev-parse-parseopt.sh b/t/t1502-rev-parse-parseopt.sh
index 922423e..ebe7c3b 100755
--- a/t/t1502-rev-parse-parseopt.sh
+++ b/t/t1502-rev-parse-parseopt.sh
@@ -19,7 +19,7 @@ sed -e 's/^|//' >expect <<\END_EXPECT
| -d, --data[=...] short and long option with an optional argument
|
|Argument hints
-| -b <arg> short option required argument
+| -B <arg> short option required argument
| --bar2 <arg> long option required argument
| -e, --fuz <with-space>
| short and long option required argument
@@ -51,7 +51,7 @@ sed -e 's/^|//' >optionspec <<\EOF
|d,data? short and long option with an optional argument
|
| Argument hints
-|b=arg short option required argument
+|B=arg short option required argument
|bar2=arg long option required argument
|e,fuz=with-space short and long option required argument
|s?some short option optional argument
--
2.1.0
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