t/helper/test-dump-cache-tree.c

   1 #include "cache.h"
   2 #include "tree.h"
   3 #include "cache-tree.h"
   4
   5
   6 static void dump_one(struct cache_tree *it, const char *pfx, const char *x)
   7 {
   8         if (it->entry_count < 0)
   9                 printf("%-40s %s%s (%d subtrees)\n",
  10                        "invalid", x, pfx, it->subtree_nr);
  11         else
  12                 printf("%s %s%s (%d entries, %d subtrees)\n",
  13                        sha1_to_hex(it->sha1), x, pfx,
  14                        it->entry_count, it->subtree_nr);
  15 }
  16
  17 static int dump_cache_tree(struct cache_tree *it,
  18                            struct cache_tree *ref,
  19                            const char *pfx)
  20 {
  21         int i;
  22         int errs = 0;
  23
  24         if (!it || !ref)
  25                 /* missing in either */
  26                 return 0;
  27
  28         if (it->entry_count < 0) {
  29                 /* invalid */
  30                 dump_one(it, pfx, "");
  31                 dump_one(ref, pfx, "#(ref) ");
  32         }
  33         else {
  34                 dump_one(it, pfx, "");
  35                 if (hashcmp(it->sha1, ref->sha1) ||
  36                     ref->entry_count != it->entry_count ||
  37                     ref->subtree_nr != it->subtree_nr) {
  38                         /* claims to be valid but is lying */
  39                         dump_one(ref, pfx, "#(ref) ");
  40                         errs = 1;
  41                 }
  42         }
  43
  44         for (i = 0; i < it->subtree_nr; i++) {
  45                 char path[PATH_MAX];
  46                 struct cache_tree_sub *down = it->down[i];
  47                 struct cache_tree_sub *rdwn;
  48
  49                 rdwn = cache_tree_sub(ref, down->name);
  50                 xsnprintf(path, sizeof(path), "%s%.*s/", pfx, down->namelen, down->name);
  51                 if (dump_cache_tree(down->cache_tree, rdwn->cache_tree, path))
  52                         errs = 1;
  53         }
  54         return errs;
  55 }
  56
  57 int cmd_main(int ac, const char **av)
  58 {
  59         struct index_state istate;
  60         struct cache_tree *another = cache_tree();
  61         if (read_cache() < 0)
  62                 die("unable to read index file");
  63         istate = the_index;
  64         istate.cache_tree = another;
  65         cache_tree_update(&istate, WRITE_TREE_DRY_RUN);
  66         return dump_cache_tree(active_cache_tree, another, "");
  67 }