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Merge branch 'jc/blame-missing-path'

Browse source 
"git blame HEAD COPYING" in a bare repository failed to run, while
"git blame HEAD -- COPYING" run just fine.  This has been corrected.

* jc/blame-missing-path:
  blame: tighten command line parser
This commit is contained in:
Junio C Hamano 2018-02-27 10:33:50 -08:00
parent c6e3ac0f69 0c668f559c
commit ee9db32d42
1 changed files with 14 additions and 6 deletions
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20
builtin/blame.c
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@ -649,6 +649,15 @@ static int blame_move_callback(const struct option *option, const char *arg, int
return 0;
}
static int is_a_rev(const char *name)
{
struct object_id oid;
if (get_oid(name, &oid))
return 0;
return OBJ_NONE < sha1_object_info(oid.hash, NULL);
}
int cmd_blame(int argc, const char **argv, const char *prefix)
{
struct rev_info revs;
@ -845,16 +854,15 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
} else {
if (argc < 2)
usage_with_options(blame_opt_usage, options);
path = add_prefix(prefix, argv[argc - 1]);
if (argc == 3 && !file_exists(path)) { /* (2b) */
if (argc == 3 && is_a_rev(argv[argc - 1])) { /* (2b) */
path = add_prefix(prefix, argv[1]);
argv[1] = argv[2];
} else { /* (2a) */
if (argc == 2 && is_a_rev(argv[1]) && !get_git_work_tree())
die("missing <path> to blame");
path = add_prefix(prefix, argv[argc - 1]);
}
argv[argc - 1] = "--";
setup_work_tree();
if (!file_exists(path))
die_errno("cannot stat path '%s'", path);
}
revs.disable_stdin = 1;