thodg/libgit2/tests/config/conditionals.c
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Hash : f0e693b1
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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/config/conditionals.c
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#include "clar_libgit2.h" #include "futils.h" #include "repository.h" #ifdef GIT_WIN32 # define ROOT_PREFIX "C:" #else # define ROOT_PREFIX #endif static git_repository *_repo; void test_config_conditionals__initialize(void) { _repo = cl_git_sandbox_init("empty_standard_repo"); } void test_config_conditionals__cleanup(void) { cl_git_sandbox_cleanup(); } static void assert_condition_includes(const char *keyword, const char *path, bool expected) { git_buf value = GIT_BUF_INIT; git_str buf = GIT_STR_INIT; git_config *cfg; cl_git_pass(git_str_printf(&buf, "[includeIf \"%s:%s\"]\n", keyword, path)); cl_git_pass(git_str_puts(&buf, "path = other\n")); cl_git_mkfile("empty_standard_repo/.git/config", buf.ptr); cl_git_mkfile("empty_standard_repo/.git/other", "[foo]\nbar=baz\n"); _repo = cl_git_sandbox_reopen(); git_str_dispose(&buf); cl_git_pass(git_repository_config(&cfg, _repo)); if (expected) { cl_git_pass(git_config_get_string_buf(&value, cfg, "foo.bar")); cl_assert_equal_s("baz", value.ptr); } else { cl_git_fail_with(GIT_ENOTFOUND, git_config_get_string_buf(&value, cfg, "foo.bar")); } git_str_dispose(&buf); git_buf_dispose(&value); git_config_free(cfg); } static char *sandbox_path(git_str *buf, const char *suffix) { char *path = p_realpath(clar_sandbox_path(), NULL); cl_assert(path); cl_git_pass(git_str_attach(buf, path, 0)); cl_git_pass(git_str_joinpath(buf, buf->ptr, suffix)); return buf->ptr; } void test_config_conditionals__gitdir(void) { git_str path = GIT_STR_INIT; assert_condition_includes("gitdir", ROOT_PREFIX "/", true); assert_condition_includes("gitdir", "empty_stand", false); assert_condition_includes("gitdir", "empty_stand/", false); assert_condition_includes("gitdir", "empty_stand/.git", false); assert_condition_includes("gitdir", "empty_stand/.git/", false); assert_condition_includes("gitdir", "empty_stand*/", true); assert_condition_includes("gitdir", "empty_stand*/.git", true); assert_condition_includes("gitdir", "empty_stand*/.git/", false); assert_condition_includes("gitdir", "empty_standard_repo", false); assert_condition_includes("gitdir", "empty_standard_repo/", true); assert_condition_includes("gitdir", "empty_standard_repo/.git", true); assert_condition_includes("gitdir", "empty_standard_repo/.git/", false); assert_condition_includes("gitdir", "./", false); assert_condition_includes("gitdir", ROOT_PREFIX "/nonexistent", false); assert_condition_includes("gitdir", ROOT_PREFIX "/empty_standard_repo", false); assert_condition_includes("gitdir", "~/empty_standard_repo", false); assert_condition_includes("gitdir", sandbox_path(&path, "/"), true); assert_condition_includes("gitdir", sandbox_path(&path, "/*"), false); assert_condition_includes("gitdir", sandbox_path(&path, "/**"), true); assert_condition_includes("gitdir", sandbox_path(&path, "empty_standard_repo"), false); assert_condition_includes("gitdir", sandbox_path(&path, "empty_standard_repo/"), true); assert_condition_includes("gitdir", sandbox_path(&path, "empty_standard_repo/"), true); assert_condition_includes("gitdir", sandbox_path(&path, "Empty_Standard_Repo"), false); assert_condition_includes("gitdir", sandbox_path(&path, "Empty_Standard_Repo/"), false); git_str_dispose(&path); } void test_config_conditionals__gitdir_i(void) { git_str path = GIT_STR_INIT; assert_condition_includes("gitdir/i", sandbox_path(&path, "empty_standard_repo/"), true); assert_condition_includes("gitdir/i", sandbox_path(&path, "EMPTY_STANDARD_REPO/"), true); git_str_dispose(&path); } void test_config_conditionals__invalid_conditional_fails(void) { assert_condition_includes("foobar", ".git", false); } static void set_head(git_repository *repo, const char *name) { cl_git_pass(git_repository_create_head(git_repository_path(repo), name)); } void test_config_conditionals__onbranch(void) { assert_condition_includes("onbranch", "master", true); assert_condition_includes("onbranch", "m*", true); assert_condition_includes("onbranch", "*", true); assert_condition_includes("onbranch", "master/", false); assert_condition_includes("onbranch", "foo", false); set_head(_repo, "foo"); assert_condition_includes("onbranch", "master", false); assert_condition_includes("onbranch", "foo", true); assert_condition_includes("onbranch", "f*o", true); set_head(_repo, "dir/ref"); assert_condition_includes("onbranch", "dir/ref", true); assert_condition_includes("onbranch", "dir/", true); assert_condition_includes("onbranch", "dir/*", true); assert_condition_includes("onbranch", "dir/**", true); assert_condition_includes("onbranch", "**", true); assert_condition_includes("onbranch", "dir", false); assert_condition_includes("onbranch", "dir*", false); set_head(_repo, "dir/subdir/ref"); assert_condition_includes("onbranch", "dir/subdir/", true); assert_condition_includes("onbranch", "dir/subdir/*", true); assert_condition_includes("onbranch", "dir/subdir/ref", true); assert_condition_includes("onbranch", "dir/", true); assert_condition_includes("onbranch", "dir/**", true); assert_condition_includes("onbranch", "**", true); assert_condition_includes("onbranch", "dir", false); assert_condition_includes("onbranch", "dir*", false); assert_condition_includes("onbranch", "dir/*", false); }