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-rw-r--r--t/helper/test-dump-cache-tree.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/t/helper/test-dump-cache-tree.c b/t/helper/test-dump-cache-tree.c
new file mode 100644
index 0000000000..44f3290258
--- /dev/null
+++ b/t/helper/test-dump-cache-tree.c
@@ -0,0 +1,67 @@
+#include "cache.h"
+#include "tree.h"
+#include "cache-tree.h"
+
+
+static void dump_one(struct cache_tree *it, const char *pfx, const char *x)
+{
+ if (it->entry_count < 0)
+ printf("%-40s %s%s (%d subtrees)\n",
+ "invalid", x, pfx, it->subtree_nr);
+ else
+ printf("%s %s%s (%d entries, %d subtrees)\n",
+ sha1_to_hex(it->sha1), x, pfx,
+ it->entry_count, it->subtree_nr);
+}
+
+static int dump_cache_tree(struct cache_tree *it,
+ struct cache_tree *ref,
+ const char *pfx)
+{
+ int i;
+ int errs = 0;
+
+ if (!it || !ref)
+ /* missing in either */
+ return 0;
+
+ if (it->entry_count < 0) {
+ /* invalid */
+ dump_one(it, pfx, "");
+ dump_one(ref, pfx, "#(ref) ");
+ }
+ else {
+ dump_one(it, pfx, "");
+ if (hashcmp(it->sha1, ref->sha1) ||
+ ref->entry_count != it->entry_count ||
+ ref->subtree_nr != it->subtree_nr) {
+ /* claims to be valid but is lying */
+ dump_one(ref, pfx, "#(ref) ");
+ errs = 1;
+ }
+ }
+
+ for (i = 0; i < it->subtree_nr; i++) {
+ char path[PATH_MAX];
+ struct cache_tree_sub *down = it->down[i];
+ struct cache_tree_sub *rdwn;
+
+ rdwn = cache_tree_sub(ref, down->name);
+ xsnprintf(path, sizeof(path), "%s%.*s/", pfx, down->namelen, down->name);
+ if (dump_cache_tree(down->cache_tree, rdwn->cache_tree, path))
+ errs = 1;
+ }
+ return errs;
+}
+
+int cmd_main(int ac, const char **av)
+{
+ struct index_state istate;
+ struct cache_tree *another = cache_tree();
+ if (read_cache() < 0)
+ die("unable to read index file");
+ istate = the_index;
+ istate.cache_tree = another;
+ cache_tree_update(&istate, WRITE_TREE_DRY_RUN);
+ return dump_cache_tree(active_cache_tree, another, "");
+}