mirror of
https://github.com/git/git
synced 2024-08-27 11:39:22 +00:00
![Christian Couder](/assets/img/avatar_default.png)
Before this patch "git merge-base" just exited with error code 1 and without an error message in case it was passed a ref to an object that is not a commit (for example a tree). This patch makes it "die" in this case with an error message. While at it, this patch also refactors the code to get the commit reference from an argument into a new "get_commit_reference" function. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
#include "builtin.h"
|
|
#include "cache.h"
|
|
#include "commit.h"
|
|
|
|
static int show_merge_base(struct commit *rev1, struct commit *rev2, int show_all)
|
|
{
|
|
struct commit_list *result = get_merge_bases(rev1, rev2, 0);
|
|
|
|
if (!result)
|
|
return 1;
|
|
|
|
while (result) {
|
|
printf("%s\n", sha1_to_hex(result->item->object.sha1));
|
|
if (!show_all)
|
|
return 0;
|
|
result = result->next;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const char merge_base_usage[] =
|
|
"git merge-base [--all] <commit-id> <commit-id>";
|
|
|
|
static struct commit *get_commit_reference(const char *arg)
|
|
{
|
|
unsigned char revkey[20];
|
|
struct commit *r;
|
|
|
|
if (get_sha1(arg, revkey))
|
|
die("Not a valid object name %s", arg);
|
|
r = lookup_commit_reference(revkey);
|
|
if (!r)
|
|
die("Not a valid commit name %s", arg);
|
|
|
|
return r;
|
|
}
|
|
|
|
int cmd_merge_base(int argc, const char **argv, const char *prefix)
|
|
{
|
|
struct commit *rev1, *rev2;
|
|
int show_all = 0;
|
|
|
|
git_config(git_default_config, NULL);
|
|
|
|
while (1 < argc && argv[1][0] == '-') {
|
|
const char *arg = argv[1];
|
|
if (!strcmp(arg, "-a") || !strcmp(arg, "--all"))
|
|
show_all = 1;
|
|
else
|
|
usage(merge_base_usage);
|
|
argc--; argv++;
|
|
}
|
|
if (argc != 3)
|
|
usage(merge_base_usage);
|
|
rev1 = get_commit_reference(argv[1]);
|
|
rev2 = get_commit_reference(argv[2]);
|
|
|
|
return show_merge_base(rev1, rev2, show_all);
|
|
}
|