diff options
| author | Nguyễn Thái Ngọc Duy <pclouds@gmail.com> | 2019-05-29 12:11:15 +0300 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2019-05-29 21:04:32 +0300 |
| commit | 8ef05193bcdda6a28cd41fa3ecd8f356061d49e0 (patch) | |
| tree | d320df22f655cd124361fc5b93f564437dcb65de /diff.c | |
| parent | 7f125ff9094bfebbb381afa19380943a088c8fcb (diff) | |
diff-parseopt: restore -U (no argument) behavior
Before d473e2e0e8 (diff.c: convert -U|--unified, 2019-01-27), -U and
--unified are implemented with a custom parser opt_arg() in diff.c. I
didn't check this code carefully and not realize that it's the
equivalent of PARSE_OPT_NONEG | PARSE_OPT_OPTARG.
In other words, if -U is specified without any argument, the option
should be accepted, and the default value should be used. Without
PARSE_OPT_OPTARG, parse_options() will reject this case and cause a
regression.
Reported-by: Bryan Turner <bturner@atlassian.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'diff.c')
| -rw-r--r-- | diff.c | 10 |
1 files changed, 6 insertions, 4 deletions
@@ -4875,9 +4875,11 @@ static int diff_opt_unified(const struct option *opt, BUG_ON_OPT_NEG(unset); - options->context = strtol(arg, &s, 10); - if (*s) - return error(_("%s expects a numerical value"), "--unified"); + if (arg) { + options->context = strtol(arg, &s, 10); + if (*s) + return error(_("%s expects a numerical value"), "--unified"); + } enable_patch_output(&options->output_format); return 0; @@ -4895,7 +4897,7 @@ static void prep_parse_options(struct diff_options *options) DIFF_FORMAT_PATCH, DIFF_FORMAT_NO_OUTPUT), OPT_CALLBACK_F('U', "unified", options, N_("<n>"), N_("generate diffs with <n> lines context"), - PARSE_OPT_NONEG, diff_opt_unified), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, diff_opt_unified), OPT_BOOL('W', "function-context", &options->flags.funccontext, N_("generate diffs with <n> lines context")), OPT_BIT_F(0, "raw", &options->output_format, |