worktree: introduce `struct git_worktree`

Introduce a new `struct git_worktree`, which holds information
about a possible working tree connected to a repository.
Introduce functions to allow opening working trees for a
repository.

1 files changed, 27 insertions, 1 deletions

diff --git a/tests/worktree/worktree.c b/tests/worktree/worktree.c
index 3acae886e..28d88993d 100644
--- a/tests/worktree/worktree.c
+++ b/tests/worktree/worktree.c
@@ -1,8 +1,8 @@
 #include "clar_libgit2.h"
 #include "worktree_helpers.h"
 
-#include "git2/worktree.h"
 #include "repository.h"
+#include "worktree.h"
 
 #define COMMON_REPO "testrepo"
 #define WORKTREE_REPO "testrepo-worktree"
@@ -105,3 +105,29 @@ void test_worktree_worktree__list_without_worktrees(void)
 
 	git_repository_free(repo);
 }
+
+void test_worktree_worktree__lookup(void)
+{
+	git_worktree *wt;
+	git_buf gitdir_path = GIT_BUF_INIT;
+
+	cl_git_pass(git_worktree_lookup(&wt, fixture.repo, "testrepo-worktree"));
+
+	git_buf_printf(&gitdir_path, "%s/worktrees/%s", fixture.repo->commondir, "testrepo-worktree");
+
+	cl_assert_equal_s(wt->gitdir_path, gitdir_path.ptr);
+	cl_assert_equal_s(wt->parent_path, fixture.repo->path_repository);
+	cl_assert_equal_s(wt->gitlink_path, fixture.worktree->path_gitlink);
+	cl_assert_equal_s(wt->commondir_path, fixture.repo->commondir);
+
+	git_buf_free(&gitdir_path);
+	git_worktree_free(wt);
+}
+
+void test_worktree_worktree__lookup_nonexistent_worktree(void)
+{
+	git_worktree *wt;
+
+	cl_git_fail(git_worktree_lookup(&wt, fixture.repo, "nonexistent"));
+	cl_assert_equal_p(wt, NULL);
+}