thodg/libgit2/tests/submodule/init.c

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• Hash : f0e693b1
  Author :
  Date : 2021-09-07T17:53:49
  

  str: introduce `git_str` for internal, `git_buf` is external libgit2 has two distinct requirements that were previously solved by `git_buf`. We require: 1. A general purpose string class that provides a number of utility APIs for manipulating data (eg, concatenating, truncating, etc). 2. A structure that we can use to return strings to callers that they can take ownership of. By using a single class (`git_buf`) for both of these purposes, we have confused the API to the point that refactorings are difficult and reasoning about correctness is also difficult. Move the utility class `git_buf` to be called `git_str`: this represents its general purpose, as an internal string buffer class. The name also is an homage to Junio Hamano ("gitstr"). The public API remains `git_buf`, and has a much smaller footprint. It is generally only used as an "out" param with strict requirements that follow the documentation. (Exceptions exist for some legacy APIs to avoid breaking callers unnecessarily.) Utility functions exist to convert a user-specified `git_buf` to a `git_str` so that we can call internal functions, then converting it back again.

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• tests/submodule/init.c

• #include "clar_libgit2.h"
  #include "posix.h"
  #include "path.h"
  #include "submodule_helpers.h"
  #include "futils.h"
  
  static git_repository *g_repo = NULL;
  
  void test_submodule_init__cleanup(void)
  {
  	cl_git_sandbox_cleanup();
  }
  
  void test_submodule_init__absolute_url(void)
  {
  	git_submodule *sm;
  	git_config *cfg;
  	git_str absolute_url = GIT_STR_INIT;
  	const char *config_url;
  
  	g_repo = setup_fixture_submodule_simple();
  
  	cl_assert(git_path_dirname_r(&absolute_url, git_repository_workdir(g_repo)) > 0);
  	cl_git_pass(git_str_joinpath(&absolute_url, absolute_url.ptr, "testrepo.git"));
  
  	/* write the absolute url to the .gitmodules file*/
  	cl_git_pass(git_submodule_set_url(g_repo, "testrepo", absolute_url.ptr));
  
  	cl_git_pass(git_submodule_lookup(&sm, g_repo, "testrepo"));
  
  	/* verify that the .gitmodules is set with an absolute path*/
  	cl_assert_equal_s(absolute_url.ptr, git_submodule_url(sm));
  
  	/* init and verify that absolute path is written to .git/config */
  	cl_git_pass(git_submodule_init(sm, false));
  
  	cl_git_pass(git_repository_config_snapshot(&cfg, g_repo));
  
  	cl_git_pass(git_config_get_string(&config_url, cfg, "submodule.testrepo.url"));
  	cl_assert_equal_s(absolute_url.ptr, config_url);
  
  	git_str_dispose(&absolute_url);
  	git_config_free(cfg);
  	git_submodule_free(sm);
  }
  
  void test_submodule_init__relative_url(void)
  {
  	git_submodule *sm;
  	git_config *cfg;
  	git_str absolute_url = GIT_STR_INIT;
  	const char *config_url;
  
  	g_repo = setup_fixture_submodule_simple();
  
  	cl_assert(git_path_dirname_r(&absolute_url, git_repository_workdir(g_repo)) > 0);
  	cl_git_pass(git_str_joinpath(&absolute_url, absolute_url.ptr, "testrepo.git"));
  
  	cl_git_pass(git_submodule_lookup(&sm, g_repo, "testrepo"));
  
  	/* verify that the .gitmodules is set with an absolute path*/
  	cl_assert_equal_s("../testrepo.git", git_submodule_url(sm));
  
  	/* init and verify that absolute path is written to .git/config */
  	cl_git_pass(git_submodule_init(sm, false));
  
  	cl_git_pass(git_repository_config_snapshot(&cfg, g_repo));
  
  	cl_git_pass(git_config_get_string(&config_url, cfg, "submodule.testrepo.url"));
  	cl_assert_equal_s(absolute_url.ptr, config_url);
  
  	git_str_dispose(&absolute_url);
  	git_config_free(cfg);
  	git_submodule_free(sm);
  }
  
  void test_submodule_init__relative_url_detached_head(void)
  {
  	git_submodule *sm;
  	git_config *cfg;
  	git_str absolute_url = GIT_STR_INIT;
  	const char *config_url;
  	git_reference *head_ref = NULL;
  	git_object *head_commit = NULL;
  
  	g_repo = setup_fixture_submodule_simple();
  
  	/* Put the parent repository into a detached head state. */
  	cl_git_pass(git_repository_head(&head_ref, g_repo));
  	cl_git_pass(git_reference_peel(&head_commit, head_ref, GIT_OBJECT_COMMIT));
  
  	cl_git_pass(git_repository_set_head_detached(g_repo, git_commit_id((git_commit *)head_commit)));
  
  	cl_assert(git_path_dirname_r(&absolute_url, git_repository_workdir(g_repo)) > 0);
  	cl_git_pass(git_str_joinpath(&absolute_url, absolute_url.ptr, "testrepo.git"));
  
  	cl_git_pass(git_submodule_lookup(&sm, g_repo, "testrepo"));
  
  	/* verify that the .gitmodules is set with an absolute path*/
  	cl_assert_equal_s("../testrepo.git", git_submodule_url(sm));
  
  	/* init and verify that absolute path is written to .git/config */
  	cl_git_pass(git_submodule_init(sm, false));
  
  	cl_git_pass(git_repository_config_snapshot(&cfg, g_repo));
  
  	cl_git_pass(git_config_get_string(&config_url, cfg, "submodule.testrepo.url"));
  	cl_assert_equal_s(absolute_url.ptr, config_url);
  
  	git_str_dispose(&absolute_url);
  	git_config_free(cfg);
  	git_object_free(head_commit);
  	git_reference_free(head_ref);
  	git_submodule_free(sm);
  }
  

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