[PATCH 3/4] rev-parse parseopt: interpret any whitespace as start of help text
- From
Brandon Casey <drafnel@gmail.com>
- Date
- Sep 17, 2017, 22:28 UTC
- Message-ID
- <1505687297-31183-3-git-send-email-drafnel@gmail.com>
- In-Reply-To
- <1505687297-31183-1-git-send-email-drafnel@gmail.com>
Currently, rev-parse only interprets a space ' ' character as the delimiter between the option spec and the help text. So if a tab character is placed between the option spec and the help text, it will be interpreted as part of the long option name or as part of the arg hint. If it is interpreted as part of the long option name, then rev-parse will produce what will be interpreted as multiple arguments on the command line.
For example, the following option spec (note: there is a <tab> between "frotz" and "enable"):
frotz enable frotzing
will produce the following set expression when --frotz is used:
set -- --frotz --
instead of this:
set -- --frotz enable --
Mark t1502.2 as fixed.
Signed-off-by: Brandon Casey <drafnel@gmail.com> --- builtin/rev-parse.c | 12 ++++++++++-- t/t1502-rev-parse-parseopt.sh | 2 +- 2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c index b19f677..351b1a3 100644 --- a/builtin/rev-parse.c +++ b/builtin/rev-parse.c @@ -387,6 +387,14 @@ static const char *skipspaces(const char *s) return s; } +static char *findspace(const char *s) +{ + for (; *s; s++) + if (isspace(*s)) + return (char*)s; + return NULL; +} + static int cmd_parseopt(int argc, const char **argv, const char *prefix) { static int keep_dashdash = 0, stop_at_non_option = 0; @@ -444,8 +452,8 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix) memset(opts + onb, 0, sizeof(opts[onb])); o = &opts[onb++]; - help = strchr(sb.buf, ' '); - if (!help || *sb.buf == ' ') { + help = findspace(sb.buf); + if (!help || sb.buf == help) { o->type = OPTION_GROUP; o->help = xstrdup(skipspaces(sb.buf)); continue; diff --git a/t/t1502-rev-parse-parseopt.sh b/t/t1502-rev-parse-parseopt.sh index 3d895e0..6e1b45f 100755 --- a/t/t1502-rev-parse-parseopt.sh +++ b/t/t1502-rev-parse-parseopt.sh @@ -38,7 +38,7 @@ test_expect_success 'setup optionspec' ' EOF ' -test_expect_failure 'test --parseopt help output' ' +test_expect_success 'test --parseopt help output' ' sed -e "s/^|//" >expect <<\END_EXPECT && |cat <<\EOF |usage: some-command [options] <args>...
-- 2.2.0.rc3