1 files changed, 148 insertions, 0 deletions
diff --git a/tests-clar/pack/packbuilder.c b/tests-clar/pack/packbuilder.c
new file mode 100644
index 000000000..764fba213
--- /dev/null
+++ b/tests-clar/pack/packbuilder.c
@@ -0,0 +1,148 @@
+#include "clar_libgit2.h"
+#include "fileops.h"
+#include "hash.h"
+#include "iterator.h"
+#include "vector.h"
+#include "posix.h"
+
+static git_repository *_repo;
+static git_revwalk *_revwalker;
+static git_packbuilder *_packbuilder;
+static git_indexer_stream *_indexer;
+static git_vector _commits;
+static int _commits_is_initialized;
+
+void test_pack_packbuilder__initialize(void)
+{
+	_repo = cl_git_sandbox_init("testrepo.git");
+	cl_git_pass(git_revwalk_new(&_revwalker, _repo));
+	cl_git_pass(git_packbuilder_new(&_packbuilder, _repo));
+	cl_git_pass(git_vector_init(&_commits, 0, NULL));
+	_commits_is_initialized = 1;
+}
+
+void test_pack_packbuilder__cleanup(void)
+{
+	git_oid *o;
+	unsigned int i;
+
+	if (_commits_is_initialized) {
+		_commits_is_initialized = 0;
+		git_vector_foreach(&_commits, i, o) {
+			git__free(o);
+		}
+		git_vector_free(&_commits);
+	}
+
+	git_packbuilder_free(_packbuilder);
+	_packbuilder = NULL;
+
+	git_revwalk_free(_revwalker);
+	_revwalker = NULL;
+
+	git_indexer_stream_free(_indexer);
+	_indexer = NULL;
+
+	cl_git_sandbox_cleanup();
+	_repo = NULL;
+}
+
+static void seed_packbuilder(void)
+{
+	git_oid oid, *o;
+	unsigned int i;
+
+	git_revwalk_sorting(_revwalker, GIT_SORT_TIME);
+	cl_git_pass(git_revwalk_push_ref(_revwalker, "HEAD"));
+
+	while (git_revwalk_next(&oid, _revwalker) == 0) {
+		o = git__malloc(GIT_OID_RAWSZ);
+		cl_assert(o != NULL);
+		git_oid_cpy(o, &oid);
+		cl_git_pass(git_vector_insert(&_commits, o));
+	}
+
+	git_vector_foreach(&_commits, i, o) {
+		cl_git_pass(git_packbuilder_insert(_packbuilder, o, NULL));
+	}
+
+	git_vector_foreach(&_commits, i, o) {
+		git_object *obj;
+		cl_git_pass(git_object_lookup(&obj, _repo, o, GIT_OBJ_COMMIT));
+		cl_git_pass(git_packbuilder_insert_tree(_packbuilder,
+					git_commit_tree_id((git_commit *)obj)));
+		git_object_free(obj);
+	}
+}
+
+static int feed_indexer(void *ptr, size_t len, void *payload)
+{
+	git_transfer_progress *stats = (git_transfer_progress *)payload;
+
+	return git_indexer_stream_add(_indexer, ptr, len, stats);
+}
+
+void test_pack_packbuilder__create_pack(void)
+{
+	git_transfer_progress stats;
+	git_buf buf = GIT_BUF_INIT, path = GIT_BUF_INIT;
+	git_hash_ctx ctx;
+	git_oid hash;
+	char hex[41]; hex[40] = '\0';
+
+	seed_packbuilder();
+
+	cl_git_pass(git_indexer_stream_new(&_indexer, ".", NULL, NULL));
+	cl_git_pass(git_packbuilder_foreach(_packbuilder, feed_indexer, &stats));
+	cl_git_pass(git_indexer_stream_finalize(_indexer, &stats));
+
+	git_oid_fmt(hex, git_indexer_stream_hash(_indexer));
+	git_buf_printf(&path, "pack-%s.pack", hex);
+
+	/*
+	 * By default, packfiles are created with only one thread.
+	 * Therefore we can predict the object ordering and make sure
+	 * we create exactly the same pack as git.git does when *not*
+	 * reusing existing deltas (as libgit2).
+	 *
+	 * $ cd tests-clar/resources/testrepo.git
+	 * $ git rev-list --objects HEAD | \
+	 * 	git pack-objects -q --no-reuse-delta --threads=1 pack
+	 * $ sha1sum git-80e61eb315239ef3c53033e37fee43b744d57122.pack
+	 * 5d410bdf97cf896f9007681b92868471d636954b
+	 *
+	 */
+
+	cl_git_pass(git_futils_readbuffer(&buf, git_buf_cstr(&path)));
+
+	cl_git_pass(git_hash_ctx_init(&ctx));
+	cl_git_pass(git_hash_update(&ctx, buf.ptr, buf.size));
+	cl_git_pass(git_hash_final(&hash, &ctx));
+	git_hash_ctx_cleanup(&ctx);
+
+	git_buf_free(&path);
+	git_buf_free(&buf);
+
+	git_oid_fmt(hex, &hash);
+
+	cl_assert_equal_s(hex, "5d410bdf97cf896f9007681b92868471d636954b");
+}
+
+static git_transfer_progress stats;
+static int foreach_cb(void *buf, size_t len, void *payload)
+{
+	git_indexer_stream *idx = (git_indexer_stream *) payload;
+	cl_git_pass(git_indexer_stream_add(idx, buf, len, &stats));
+	return 0;
+}
+
+void test_pack_packbuilder__foreach(void)
+{
+	git_indexer_stream *idx;
+
+	seed_packbuilder();
+	cl_git_pass(git_indexer_stream_new(&idx, ".", NULL, NULL));
+	cl_git_pass(git_packbuilder_foreach(_packbuilder, foreach_cb, idx));
+	cl_git_pass(git_indexer_stream_finalize(idx, &stats));
+	git_indexer_stream_free(idx);
+}