examples/index-pack.c

   1 #include "common.h"
   2
   3 /*
   4  * This could be run in the main loop whilst the application waits for
   5  * the indexing to finish in a worker thread
   6  */
   7 static int index_cb(const git_indexer_progress *stats, void *data)
   8 {
   9         (void)data;
  10         printf("\rProcessing %u of %u", stats->indexed_objects, stats->total_objects);
  11
  12         return 0;
  13 }
  14
  15 int lg2_index_pack(git_repository *repo, int argc, char **argv)
  16 {
  17         git_indexer *idx;
  18         git_indexer_progress stats = {0, 0};
  19         int error;
  20         char hash[GIT_OID_HEXSZ + 1] = {0};
  21         int fd;
  22         ssize_t read_bytes;
  23         char buf[512];
  24
  25         (void)repo;
  26
  27         if (argc < 2) {
  28                 fprintf(stderr, "usage: %s index-pack <packfile>\n", argv[-1]);
  29                 return EXIT_FAILURE;
  30         }
  31
  32         if (git_indexer_new(&idx, ".", 0, NULL, NULL) < 0) {
  33                 puts("bad idx");
  34                 return -1;
  35         }
  36
  37         if ((fd = open(argv[1], 0)) < 0) {
  38                 perror("open");
  39                 return -1;
  40         }
  41
  42         do {
  43                 read_bytes = read(fd, buf, sizeof(buf));
  44                 if (read_bytes < 0)
  45                         break;
  46
  47                 if ((error = git_indexer_append(idx, buf, read_bytes, &stats)) < 0)
  48                         goto cleanup;
  49
  50                 index_cb(&stats, NULL);
  51         } while (read_bytes > 0);
  52
  53         if (read_bytes < 0) {
  54                 error = -1;
  55                 perror("failed reading");
  56                 goto cleanup;
  57         }
  58
  59         if ((error = git_indexer_commit(idx, &stats)) < 0)
  60                 goto cleanup;
  61
  62         printf("\rIndexing %u of %u\n", stats.indexed_objects, stats.total_objects);
  63
  64         git_oid_fmt(hash, git_indexer_hash(idx));
  65         puts(hash);
  66
  67  cleanup:
  68         close(fd);
  69         git_indexer_free(idx);
  70         return error;
  71 }