Andrew's git - gitweb.git/blob

   1#include "cache.h"
   2#include "rev-cache.h"
   3
   4static const char missing_revs_usage[] =
   5"git-missing-revs <rev-cache-file> <want-sha1>...";
   6
   7#define REV_WANT 01
   8#define REV_HAVE 02
   9
  10static void process(struct rev_cache *head_list)
  11{
  12        while (head_list) {
  13                struct rev_cache *rc = head_list;
  14                struct rev_list_elem *e;
  15                head_list = rc->head_list;
  16                rc->head_list = NULL;
  17                if (has_sha1_file(rc->sha1)) {
  18                        rc->work |= REV_HAVE;
  19                        continue;
  20                }
  21                if (rc->work & (REV_WANT|REV_HAVE))
  22                        continue;
  23                rc->work |= REV_WANT;
  24                printf("%s\n", sha1_to_hex(rc->sha1));
  25                for (e = rc->parents; e; e = e->next) {
  26                        if (e->ri->work & REV_HAVE)
  27                                continue;
  28                        e->ri->head_list = head_list;
  29                        head_list = e->ri;
  30                }
  31        }
  32}
  33
  34int main(int ac, char **av)
  35{
  36        const char *rev_cache_file;
  37        struct rev_cache *head_list = NULL;
  38        int i;
  39
  40        if (ac < 3)
  41                usage(missing_revs_usage);
  42        rev_cache_file = av[1];
  43        read_rev_cache(rev_cache_file, NULL, 0);
  44        for (i = 2; i < ac; i++) {
  45                unsigned char sha1[20];
  46                int pos;
  47                struct rev_cache *rc;
  48                if (get_sha1_hex(av[i], sha1))
  49                        die("%s: not an SHA1", av[i]);
  50                if ((pos = find_rev_cache(sha1)) < 0) {
  51                        /* We could be asked for tags, which would not
  52                         * appear in the rev-cache.
  53                         */
  54                        puts(av[i]);
  55                        continue;
  56                }
  57                rc = rev_cache[pos];
  58                rc->head_list = head_list;
  59                head_list = rc;
  60        }
  61        process(head_list);
  62        return 0;
  63}