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show-branch --reflog: tighten input validation.

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Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2007-01-19 22:51:49 -08:00
parent 76a44c5c0b
commit b15af07928
1 changed files with 11 additions and 4 deletions
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15
builtin-show-branch.c
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@ -4,7 +4,9 @@
#include "builtin.h"
static const char show_branch_usage[] =
"git-show-branch [--sparse] [--current] [--all] [--remotes] [--topo-order] [--more=count | --list | --independent | --merge-base ] [--topics] [<refs>...] | --reflog[=n] <branch>";
"git-show-branch [--sparse] [--current] [--all] [--remotes] [--topo-order] [--more=count | --list | --independent | --merge-base ] [--topics] [<refs>...] | --reflog[=n[,b]] <branch>";
static const char show_branch_usage_reflog[] =
"--reflog is incompatible with --all, --remotes, --independent or --merge-base";
static int default_num;
static int default_alloc;
@ -664,12 +666,14 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
*/
if (independent || merge_base)
usage(show_branch_usage);
if (!!reflog && (0 < extra))
if (!!reflog && ((0 < extra) || all_heads || all_remotes))
/*
* Asking for --more in reflog mode does not
* make sense.
* make sense. --list is Ok.
*
* Also --all and --remotes do not make sense either.
*/
usage(show_branch_usage);
usage(show_branch_usage_reflog);
}
/* If nothing is specified, show all branches by default */
@ -685,6 +689,9 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
int base = 0;
if (ac != 1)
die("--reflog option needs one branch name");
if (MAX_REVS < reflog)
die("Only %d entries can be shown at one time.",
MAX_REVS);
if (!dwim_ref(*av, strlen(*av), sha1, &ref))
die("No such ref %s", *av);