[PATCH] Use '-d' as the first flag to 'install'
[git] / build-rev-cache.c
1 #include "refs.h"
2 #include "cache.h"
3 #include "commit.h"
4 #include "rev-cache.h"
5
6 static 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
27 static const char *build_rev_cache_usage =
28 "git-build-rev-cache <rev-cache-file> < list-of-heads";
29
30 int 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 }