repo: honor GIT_CONFIG_* environment variables

When the repository is opened with `GIT_REPOSITORY_OPEN_FROM_ENV`, honor
the `GIT_CONFIG_GLOBAL`, `GIT_CONFIG_SYSTEM` and `GIT_CONFIG_NOSYSTEM`
environment variables.

1 files changed, 52 insertions, 0 deletions

diff --git a/tests/libgit2/repo/env.c b/tests/libgit2/repo/env.c
index 4a61581bd..0e6cc59d5 100644
--- a/tests/libgit2/repo/env.c
+++ b/tests/libgit2/repo/env.c
@@ -32,6 +32,8 @@ void test_repo_env__cleanup(void)
 		git_futils_rmdir_r("peeled.git", NULL, GIT_RMDIR_REMOVE_FILES);
 
 	cl_fixture_cleanup("test_workdir");
+	cl_fixture_cleanup("test_global_conf");
+	cl_fixture_cleanup("test_system_conf");
 
 	clear_git_env();
 }
@@ -315,3 +317,53 @@ void test_repo_env__commondir(void)
 	git_repository_free(repo);
 	cl_setenv("GIT_COMMON_DIR", NULL);
 }
+
+void test_repo_env__config(void)
+{
+	git_repository *repo;
+	git_config *config;
+	const char *system_path, *global_path;
+	int s, g;
+
+	cl_fixture_sandbox("attr");
+	cl_git_pass(p_rename("attr/.gitted", "attr/.git"));
+
+	cl_git_rewritefile("test_system_conf", "[tttest]\n\tsys = true\n");
+	cl_git_rewritefile("test_global_conf", "[tttest]\n\tglb = true\n");
+
+	system_path = cl_git_sandbox_path(0, "test_system_conf", NULL);
+	cl_setenv("GIT_CONFIG_SYSTEM", system_path);
+
+	global_path = cl_git_sandbox_path(0, "test_global_conf", NULL);
+	cl_setenv("GIT_CONFIG_GLOBAL", global_path);
+
+	/* Ensure we can override the system and global files */
+
+	cl_git_pass(git_repository_open_ext(&repo, "attr", GIT_REPOSITORY_OPEN_FROM_ENV, NULL));
+	cl_git_pass(git_repository_config(&config, repo));
+
+	cl_git_pass(git_config_get_bool(&s, config, "tttest.sys"));
+	cl_assert_equal_i(1, s);
+	cl_git_pass(git_config_get_bool(&g, config, "tttest.glb"));
+	cl_assert_equal_i(1, g);
+
+	git_config_free(config);
+	git_repository_free(repo);
+
+	/* Further ensure we can ignore the system file. */
+	cl_setenv("GIT_CONFIG_NOSYSTEM", "TrUe");
+
+	cl_git_pass(git_repository_open_ext(&repo, "attr", GIT_REPOSITORY_OPEN_FROM_ENV, NULL));
+	cl_git_pass(git_repository_config(&config, repo));
+
+	cl_git_fail_with(GIT_ENOTFOUND, git_config_get_bool(&s, config, "tttest.sys"));
+	cl_git_pass(git_config_get_bool(&g, config, "tttest.glb"));
+	cl_assert_equal_i(1, g);
+
+	git_config_free(config);
+	git_repository_free(repo);
+
+	cl_setenv("GIT_CONFIG_NOSYSTEM", NULL);
+	cl_setenv("GIT_CONFIG_SYSTEM", NULL);
+	cl_setenv("GIT_CONFIG_GLOBAL", NULL);
+}