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Merge branch 'rs/parse-options-with-keep-unknown-abbrev-fix'

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"git diff --no-rename A B" did not disable rename detection but did
not trigger an error from the command line parser.

* rs/parse-options-with-keep-unknown-abbrev-fix:
  parse-options: simplify positivation handling
  parse-options: fully disable option abbreviation with PARSE_OPT_KEEP_UNKNOWN
This commit is contained in:
Junio C Hamano
2024-01-30 13:34:12 -08:00
parent 262fa1e968 457f96252f
commit 2e77b83993
2 changed files with 17 additions and 10 deletions
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21
parse-options.c
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@ -357,6 +357,7 @@ static enum parse_opt_result parse_long_opt(
const char *arg_end = strchrnul(arg, '=');
const struct option *abbrev_option = NULL, *ambiguous_option = NULL;
enum opt_parsed abbrev_flags = OPT_LONG, ambiguous_flags = OPT_LONG;
int allow_abbrev = !(p->flags & PARSE_OPT_KEEP_UNKNOWN_OPT);
for (; options->type != OPTION_END; options++) {
const char *rest, *long_name = options->long_name;
@ -367,12 +368,16 @@ static enum parse_opt_result parse_long_opt(
if (!long_name)
continue;
again:
if (!starts_with(arg, "no-") &&
!(options->flags & PARSE_OPT_NONEG) &&
skip_prefix(long_name, "no-", &long_name))
opt_flags |= OPT_UNSET;
if (!skip_prefix(arg, long_name, &rest))
rest = NULL;
if (!rest) {
/* abbreviated? */
if (!(p->flags & PARSE_OPT_KEEP_UNKNOWN_OPT) &&
if (allow_abbrev &&
!strncmp(long_name, arg, arg_end - arg)) {
is_abbreviated:
if (abbrev_option &&
@ -396,22 +401,18 @@ is_abbreviated:
if (options->flags & PARSE_OPT_NONEG)
continue;
/* negated and abbreviated very much? */
if (starts_with("no-", arg)) {
if (allow_abbrev && starts_with("no-", arg)) {
flags |= OPT_UNSET;
goto is_abbreviated;
}
/* negated? */
if (!starts_with(arg, "no-")) {
if (skip_prefix(long_name, "no-", &long_name)) {
opt_flags |= OPT_UNSET;
goto again;
}
if (!starts_with(arg, "no-"))
continue;
}
flags |= OPT_UNSET;
if (!skip_prefix(arg + 3, long_name, &rest)) {
/* abbreviated and negated? */
if (starts_with(long_name, arg + 3))
if (allow_abbrev &&
starts_with(long_name, arg + 3))
goto is_abbreviated;
else
continue;