1#include "refs.h"
2#include "cache.h"
3#include "commit.h"
4#include "rev-cache.h"
5
6static void process_head_list(int verbose)
7{
8 char buf[512];
9
10 while (fgets(buf, sizeof(buf), stdin)) {
11 unsigned char sha1[20];
12 struct commit *commit;
13
14 if (get_sha1_hex(buf, sha1)) {
15 error("ignoring: %s", buf);
16 continue;
17 }
18 if (!(commit = lookup_commit_reference(sha1))) {
19 error("not a commit: %s", sha1_to_hex(sha1));
20 continue;
21 }
22 record_rev_cache(commit->object.sha1, verbose ? stderr : NULL);
23 }
24}
25
26
27static const char *build_rev_cache_usage =
28"git-build-rev-cache <rev-cache-file> < list-of-heads";
29
30int main(int ac, char **av)
31{
32 int verbose = 0;
33 const char *path;
34
35 while (1 < ac && av[1][0] == '-') {
36 if (!strcmp(av[1], "-v"))
37 verbose = 1;
38 else
39 usage(build_rev_cache_usage);
40 ac--; av++;
41 }
42
43 if (ac != 2)
44 usage(build_rev_cache_usage);
45
46 path = av[1];
47
48 /* read existing rev-cache */
49 read_rev_cache(path, NULL, 0);
50
51 process_head_list(verbose);
52
53 /* update the rev-cache database by appending newly found one to it */
54 write_rev_cache(path, path);
55 return 0;
56}