git / test-dump-cache-tree.c

#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);
		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) {
		dump_one(it, pfx, "");
		dump_one(ref, pfx, "#(ref) ");
		if (it->subtree_nr != ref->subtree_nr)
			errs = 1;
	else {
		dump_one(it, pfx, "");
		if (hashcmp(it->sha1, ref->sha1) ||
		    ref->entry_count != it->entry_count ||
		    ref->subtree_nr != it->subtree_nr) {
			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);
		sprintf(path, "%s%.*s/", pfx, down->namelen, down->name);
		if (dump_cache_tree(down->cache_tree, rdwn->cache_tree, path))
			errs = 1;
	return errs;

int main(int ac, char **av)
	struct cache_tree *another = cache_tree();
	if (read_cache() < 0)
		die("unable to read index file");
	cache_tree_update(another, active_cache, active_nr, WRITE_TREE_DRY_RUN);
	return dump_cache_tree(active_cache_tree, another, "");
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