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#include "cache.h"
#include "rev-cache.h"
static const char missing_revs_usage[] =
"git-missing-revs <rev-cache-file> <want-sha1>...";
#define REV_WANT 01
#define REV_HAVE 02
static void process(struct rev_cache *head_list)
{
while (head_list) {
struct rev_cache *rc = head_list;
struct rev_list_elem *e;
head_list = rc->head_list;
rc->head_list = NULL;
if (has_sha1_file(rc->sha1)) {
rc->work |= REV_HAVE;
continue;
}
if (rc->work & (REV_WANT|REV_HAVE))
continue;
rc->work |= REV_WANT;
printf("%s\n", sha1_to_hex(rc->sha1));
for (e = rc->parents; e; e = e->next) {
if (e->ri->work & REV_HAVE)
continue;
e->ri->head_list = head_list;
head_list = e->ri;
}
}
}
int main(int ac, char **av)
{
const char *rev_cache_file;
struct rev_cache *head_list = NULL;
int i;
if (ac < 3)
usage(missing_revs_usage);
rev_cache_file = av[1];
read_rev_cache(rev_cache_file, NULL, 0);
for (i = 2; i < ac; i++) {
unsigned char sha1[20];
int pos;
struct rev_cache *rc;
if (get_sha1_hex(av[i], sha1))
die("%s: not an SHA1", av[i]);
if ((pos = find_rev_cache(sha1)) < 0) {
/* We could be asked for tags, which would not
* appear in the rev-cache.
*/
puts(av[i]);
continue;
}
rc = rev_cache[pos];
rc->head_list = head_list;
head_list = rc;
}
process(head_list);
return 0;
}
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