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