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git/merge-base.c
Junio C Hamano 85023577a8 simplify inclusion of system header files.
This is a mechanical clean-up of the way *.c files include
system header files.

 (1) sources under compat/, platform sha-1 implementations, and
     xdelta code are exempt from the following rules;

 (2) the first #include must be "git-compat-util.h" or one of
     our own header file that includes it first (e.g. config.h,
     builtin.h, pkt-line.h);

 (3) system headers that are included in "git-compat-util.h"
     need not be included in individual C source files.

 (4) "git-compat-util.h" does not have to include subsystem
     specific header files (e.g. expat.h).

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-20 09:51:35 -08:00

54 lines
1.1 KiB
C

#include "cache.h"
#include "commit.h"
static int show_all;
static int merge_base(struct commit *rev1, struct commit *rev2)
{
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>";
int main(int argc, char **argv)
{
struct commit *rev1, *rev2;
unsigned char rev1key[20], rev2key[20];
setup_git_directory();
git_config(git_default_config);
while (1 < argc && argv[1][0] == '-') {
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);
if (get_sha1(argv[1], rev1key))
die("Not a valid object name %s", argv[1]);
if (get_sha1(argv[2], rev2key))
die("Not a valid object name %s", argv[2]);
rev1 = lookup_commit_reference(rev1key);
rev2 = lookup_commit_reference(rev2key);
if (!rev1 || !rev2)
return 1;
return merge_base(rev1, rev2);
}