t/helper/test-read-midx.c

   1 #include "test-tool.h"
   2 #include "cache.h"
   3 #include "midx.h"
   4 #include "repository.h"
   5 #include "object-store.h"
   6 #include "pack-bitmap.h"
   7
   8 static int read_midx_file(const char *object_dir, int show_objects)
   9 {
  10         uint32_t i;
  11         struct multi_pack_index *m;
  12
  13         setup_git_directory();
  14         m = load_multi_pack_index(object_dir, 1);
  15
  16         if (!m)
  17                 return 1;
  18
  19         printf("header: %08x %d %d %d %d\n",
  20                m->signature,
  21                m->version,
  22                m->hash_len,
  23                m->num_chunks,
  24                m->num_packs);
  25
  26         printf("chunks:");
  27
  28         if (m->chunk_pack_names)
  29                 printf(" pack-names");
  30         if (m->chunk_oid_fanout)
  31                 printf(" oid-fanout");
  32         if (m->chunk_oid_lookup)
  33                 printf(" oid-lookup");
  34         if (m->chunk_object_offsets)
  35                 printf(" object-offsets");
  36         if (m->chunk_large_offsets)
  37                 printf(" large-offsets");
  38
  39         printf("\nnum_objects: %d\n", m->num_objects);
  40
  41         printf("packs:\n");
  42         for (i = 0; i < m->num_packs; i++)
  43                 printf("%s\n", m->pack_names[i]);
  44
  45         printf("object-dir: %s\n", m->object_dir);
  46
  47         if (show_objects) {
  48                 struct object_id oid;
  49                 struct pack_entry e;
  50
  51                 for (i = 0; i < m->num_objects; i++) {
  52                         nth_midxed_object_oid(&oid, m, i);
  53                         fill_midx_entry(the_repository, &oid, &e, m);
  54
  55                         printf("%s %"PRIu64"\t%s\n",
  56                                oid_to_hex(&oid), e.offset, e.p->pack_name);
  57                 }
  58         }
  59
  60         close_midx(m);
  61
  62         return 0;
  63 }
  64
  65 static int read_midx_checksum(const char *object_dir)
  66 {
  67         struct multi_pack_index *m;
  68
  69         setup_git_directory();
  70         m = load_multi_pack_index(object_dir, 1);
  71         if (!m)
  72                 return 1;
  73         printf("%s\n", hash_to_hex(get_midx_checksum(m)));
  74         return 0;
  75 }
  76
  77 static int read_midx_preferred_pack(const char *object_dir)
  78 {
  79         struct multi_pack_index *midx = NULL;
  80         struct bitmap_index *bitmap = NULL;
  81
  82         setup_git_directory();
  83
  84         midx = load_multi_pack_index(object_dir, 1);
  85         if (!midx)
  86                 return 1;
  87
  88         bitmap = prepare_bitmap_git(the_repository);
  89         if (!bitmap)
  90                 return 1;
  91         if (!bitmap_is_midx(bitmap)) {
  92                 free_bitmap_index(bitmap);
  93                 return 1;
  94         }
  95
  96         printf("%s\n", midx->pack_names[midx_preferred_pack(bitmap)]);
  97         free_bitmap_index(bitmap);
  98         return 0;
  99 }
 100
 101 int cmd__read_midx(int argc, const char **argv)
 102 {
 103         if (!(argc == 2 || argc == 3))
 104                 usage("read-midx [--show-objects|--checksum|--preferred-pack] <object-dir>");
 105
 106         if (!strcmp(argv[1], "--show-objects"))
 107                 return read_midx_file(argv[2], 1);
 108         else if (!strcmp(argv[1], "--checksum"))
 109                 return read_midx_checksum(argv[2]);
 110         else if (!strcmp(argv[1], "--preferred-pack"))
 111                 return read_midx_preferred_pack(argv[2]);
 112         return read_midx_file(argv[1], 0);
 113 }