rev-list.c

   1 #include "cache.h"
   2 #include "commit.h"
   3
   4 static const char rev_list_usage[] =
   5         "usage: git-rev-list [OPTION] commit-id <commit-id>\n"
   6                       "  --max-count=nr\n"
   7                       "  --max-age=epoch\n"
   8                       "  --min-age=epoch\n"
   9                       "  --header";
  10
  11 int main(int argc, char **argv)
  12 {
  13         int nr_sha;
  14         unsigned char sha1[2][20];
  15         struct commit_list *list = NULL;
  16         struct commit *commit, *end;
  17         int i, verbose_header = 0;
  18         unsigned long max_age = -1;
  19         unsigned long min_age = -1;
  20         int max_count = -1;
  21
  22         nr_sha = 0;
  23         for (i = 1 ; i < argc; i++) {
  24                 char *arg = argv[i];
  25
  26                 if (!strncmp(arg, "--max-count=", 12)) {
  27                         max_count = atoi(arg + 12);
  28                         continue;
  29                 }
  30                 if (!strncmp(arg, "--max-age=", 10)) {
  31                         max_age = atoi(arg + 10);
  32                         continue;
  33                 }
  34                 if (!strncmp(arg, "--min-age=", 10)) {
  35                         min_age = atoi(arg + 10);
  36                         continue;
  37                 }
  38                 if (!strcmp(arg, "--header")) {
  39                         verbose_header = 1;
  40                         continue;
  41                 }
  42
  43                 if (nr_sha > 2 || get_sha1(arg, sha1[nr_sha]))
  44                         usage(rev_list_usage);
  45                 nr_sha++;
  46         }
  47
  48         if (!nr_sha)
  49                 usage(rev_list_usage);
  50
  51         commit = lookup_commit_reference(sha1[0]);
  52         if (!commit || parse_commit(commit) < 0)
  53                 die("bad starting commit object");
  54
  55         end = NULL;
  56         if (nr_sha > 1) {
  57                 end = lookup_commit_reference(sha1[1]);
  58                 if (!end || parse_commit(end) < 0)
  59                         die("bad ending commit object");
  60         }
  61
  62         commit_list_insert(commit, &list);
  63         do {
  64                 struct commit *commit = pop_most_recent_commit(&list, 0x1);
  65
  66                 if (commit == end)
  67                         break;
  68                 if (min_age != -1 && (commit->date > min_age))
  69                         continue;
  70                 if (max_age != -1 && (commit->date < max_age))
  71                         break;
  72                 if (max_count != -1 && !max_count--)
  73                         break;
  74                 printf("%s\n", sha1_to_hex(commit->object.sha1));
  75                 if (verbose_header)
  76                         printf("%s%c", commit->buffer, 0);
  77         } while (list);
  78         return 0;
  79 }