t/helper/test-read-midx.c

   1 #include "test-tool.h"
   2 #include "cache.h"
   3 #include "hex.h"
   4 #include "midx.h"
   5 #include "repository.h"
   6 #include "object-store.h"
   7 #include "pack-bitmap.h"
   8 #include "setup.h"
   9
  10 static int read_midx_file(const char *object_dir, int show_objects)
  11 {
  12         uint32_t i;
  13         struct multi_pack_index *m;
  14
  15         setup_git_directory();
  16         m = load_multi_pack_index(object_dir, 1);
  17
  18         if (!m)
  19                 return 1;
  20
  21         printf("header: %08x %d %d %d %d\n",
  22                m->signature,
  23                m->version,
  24                m->hash_len,
  25                m->num_chunks,
  26                m->num_packs);
  27
  28         printf("chunks:");
  29
  30         if (m->chunk_pack_names)
  31                 printf(" pack-names");
  32         if (m->chunk_oid_fanout)
  33                 printf(" oid-fanout");
  34         if (m->chunk_oid_lookup)
  35                 printf(" oid-lookup");
  36         if (m->chunk_object_offsets)
  37                 printf(" object-offsets");
  38         if (m->chunk_large_offsets)
  39                 printf(" large-offsets");
  40
  41         printf("\nnum_objects: %d\n", m->num_objects);
  42
  43         printf("packs:\n");
  44         for (i = 0; i < m->num_packs; i++)
  45                 printf("%s\n", m->pack_names[i]);
  46
  47         printf("object-dir: %s\n", m->object_dir);
  48
  49         if (show_objects) {
  50                 struct object_id oid;
  51                 struct pack_entry e;
  52
  53                 for (i = 0; i < m->num_objects; i++) {
  54                         nth_midxed_object_oid(&oid, m, i);
  55                         fill_midx_entry(the_repository, &oid, &e, m);
  56
  57                         printf("%s %"PRIu64"\t%s\n",
  58                                oid_to_hex(&oid), e.offset, e.p->pack_name);
  59                 }
  60         }
  61
  62         close_midx(m);
  63
  64         return 0;
  65 }
  66
  67 static int read_midx_checksum(const char *object_dir)
  68 {
  69         struct multi_pack_index *m;
  70
  71         setup_git_directory();
  72         m = load_multi_pack_index(object_dir, 1);
  73         if (!m)
  74                 return 1;
  75         printf("%s\n", hash_to_hex(get_midx_checksum(m)));
  76         return 0;
  77 }
  78
  79 static int read_midx_preferred_pack(const char *object_dir)
  80 {
  81         struct multi_pack_index *midx = NULL;
  82         struct bitmap_index *bitmap = NULL;
  83
  84         setup_git_directory();
  85
  86         midx = load_multi_pack_index(object_dir, 1);
  87         if (!midx)
  88                 return 1;
  89
  90         bitmap = prepare_bitmap_git(the_repository);
  91         if (!bitmap)
  92                 return 1;
  93         if (!bitmap_is_midx(bitmap)) {
  94                 free_bitmap_index(bitmap);
  95                 return 1;
  96         }
  97
  98         printf("%s\n", midx->pack_names[midx_preferred_pack(bitmap)]);
  99         free_bitmap_index(bitmap);
 100         return 0;
 101 }
 102
 103 int cmd__read_midx(int argc, const char **argv)
 104 {
 105         if (!(argc == 2 || argc == 3))
 106                 usage("read-midx [--show-objects|--checksum|--preferred-pack] <object-dir>");
 107
 108         if (!strcmp(argv[1], "--show-objects"))
 109                 return read_midx_file(argv[2], 1);
 110         else if (!strcmp(argv[1], "--checksum"))
 111                 return read_midx_checksum(argv[2]);
 112         else if (!strcmp(argv[1], "--preferred-pack"))
 113                 return read_midx_preferred_pack(argv[2]);
 114         return read_midx_file(argv[1], 0);
 115 }