t/helper/test-read-graph.c

   1 #include "test-tool.h"
   2 #include "cache.h"
   3 #include "commit-graph.h"
   4 #include "repository.h"
   5 #include "object-store.h"
   6
   7 int cmd__read_graph(int argc, const char **argv)
   8 {
   9         struct commit_graph *graph = NULL;
  10         char *graph_name;
  11         int open_ok;
  12         int fd;
  13         struct stat st;
  14         const char *object_dir;
  15
  16         setup_git_directory();
  17         object_dir = get_object_directory();
  18
  19         graph_name = get_commit_graph_filename(object_dir);
  20
  21         open_ok = open_commit_graph(graph_name, &fd, &st);
  22         if (!open_ok)
  23                 die_errno(_("Could not open commit-graph '%s'"), graph_name);
  24
  25         graph = load_commit_graph_one_fd_st(fd, &st);
  26         if (!graph)
  27                 return 1;
  28
  29         FREE_AND_NULL(graph_name);
  30
  31         printf("header: %08x %d %d %d %d\n",
  32                 ntohl(*(uint32_t*)graph->data),
  33                 *(unsigned char*)(graph->data + 4),
  34                 *(unsigned char*)(graph->data + 5),
  35                 *(unsigned char*)(graph->data + 6),
  36                 *(unsigned char*)(graph->data + 7));
  37         printf("num_commits: %u\n", graph->num_commits);
  38         printf("chunks:");
  39
  40         if (graph->chunk_oid_fanout)
  41                 printf(" oid_fanout");
  42         if (graph->chunk_oid_lookup)
  43                 printf(" oid_lookup");
  44         if (graph->chunk_commit_data)
  45                 printf(" commit_metadata");
  46         if (graph->chunk_extra_edges)
  47                 printf(" extra_edges");
  48         printf("\n");
  49
  50         UNLEAK(graph);
  51
  52         return 0;
  53 }