symlink tests: test symbolic links on windowsethomson/win_symlinks

Test updated symbolic link creation on Windows.  Ensure that we emulate
Git for Windows behavior.  Ensure that when `core.symlinks=true` is set
in a global configuration that new repositories are created without a
`core.symlinks` setting, and that when `core.symlinks` is unset that
`core.symlinks=false` in set in the repository.  Further ensure that
checkout honors the expected `core.symlinks` defaults on Windows.

1 files changed, 23 insertions, 5 deletions

diff --git a/tests/repo/repo_helpers.c b/tests/repo/repo_helpers.c
index 50a201e86..4256314f1 100644
--- a/tests/repo/repo_helpers.c
+++ b/tests/repo/repo_helpers.c
@@ -24,11 +24,29 @@ void delete_head(git_repository* repo)
 int filesystem_supports_symlinks(const char *path)
 {
 	struct stat st;
+	bool support = 0;
 
-	if (p_symlink("target", path) < 0 ||
-		p_lstat(path, &st) < 0 ||
-		!(S_ISLNK(st.st_mode)))
-		return 0;
+	if (p_symlink("target", path) == 0) {
+		if (p_lstat(path, &st) == 0 && S_ISLNK(st.st_mode))
+			support = 1;
 
-	return 1;
+		p_unlink(path);
+	}
+
+	return support;
+}
+
+void create_tmp_global_config(const char *dirname, const char *key, const char *val)
+{
+	git_buf path = GIT_BUF_INIT;
+	git_config *config;
+
+	cl_git_pass(git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH,
+		GIT_CONFIG_LEVEL_GLOBAL, dirname));
+	cl_must_pass(p_mkdir(dirname, 0777));
+	cl_git_pass(git_buf_joinpath(&path, dirname, ".gitconfig"));
+	cl_git_pass(git_config_open_ondisk(&config, path.ptr));
+	cl_git_pass(git_config_set_string(config, key, val));
+	git_config_free(config);
+	git_buf_dispose(&path);
 }