git-commit-vandalism/build-rev-cache.c

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#include "refs.h"
#include "cache.h"
#include "commit.h"
#include "rev-cache.h"
static void process_head_list(int verbose)
{
char buf[512];
while (fgets(buf, sizeof(buf), stdin)) {
unsigned char sha1[20];
struct commit *commit;
if (get_sha1_hex(buf, sha1)) {
error("ignoring: %s", buf);
continue;
}
if (!(commit = lookup_commit_reference(sha1))) {
error("not a commit: %s", sha1_to_hex(sha1));
continue;
}
record_rev_cache(commit->object.sha1, verbose ? stderr : NULL);
}
}
static const char *build_rev_cache_usage =
"git-build-rev-cache <rev-cache-file> < list-of-heads";
int main(int ac, char **av)
{
int verbose = 0;
const char *path;
while (1 < ac && av[1][0] == '-') {
if (!strcmp(av[1], "-v"))
verbose = 1;
else
usage(build_rev_cache_usage);
ac--; av++;
}
if (ac != 2)
usage(build_rev_cache_usage);
path = av[1];
/* read existing rev-cache */
read_rev_cache(path, NULL, 0);
process_head_list(verbose);
/* update the rev-cache database by appending newly found one to it */
write_rev_cache(path, path);
return 0;
}