thodg/libgit2/tests/repo/hashfile.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/repo/hashfile.c
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#include "clar_libgit2.h" static git_repository *_repo; void test_repo_hashfile__initialize(void) { _repo = cl_git_sandbox_init("status"); } void test_repo_hashfile__cleanup(void) { cl_fixture_cleanup("absolute"); cl_git_sandbox_cleanup(); _repo = NULL; } void test_repo_hashfile__simple(void) { git_oid a, b; git_str full = GIT_STR_INIT; /* hash with repo relative path */ cl_git_pass(git_odb_hashfile(&a, "status/current_file", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, "current_file", GIT_OBJECT_BLOB, NULL)); cl_assert_equal_oid(&a, &b); cl_git_pass(git_str_joinpath(&full, git_repository_workdir(_repo), "current_file")); /* hash with full path */ cl_git_pass(git_odb_hashfile(&a, full.ptr, GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, full.ptr, GIT_OBJECT_BLOB, NULL)); cl_assert_equal_oid(&a, &b); /* hash with invalid type */ cl_git_fail(git_odb_hashfile(&a, full.ptr, GIT_OBJECT_ANY)); cl_git_fail(git_repository_hashfile(&b, _repo, full.ptr, GIT_OBJECT_OFS_DELTA, NULL)); git_str_dispose(&full); } void test_repo_hashfile__filtered_in_workdir(void) { git_str root = GIT_STR_INIT, txt = GIT_STR_INIT, bin = GIT_STR_INIT; char cwd[GIT_PATH_MAX]; git_oid a, b; cl_must_pass(p_getcwd(cwd, GIT_PATH_MAX)); cl_must_pass(p_mkdir("absolute", 0777)); cl_git_pass(git_str_joinpath(&root, cwd, "status")); cl_git_pass(git_str_joinpath(&txt, root.ptr, "testfile.txt")); cl_git_pass(git_str_joinpath(&bin, root.ptr, "testfile.bin")); cl_repo_set_bool(_repo, "core.autocrlf", true); cl_git_append2file("status/.gitattributes", "*.txt text\n*.bin binary\n\n"); /* create some sample content with CRLF in it */ cl_git_mkfile("status/testfile.txt", "content\r\n"); cl_git_mkfile("status/testfile.bin", "other\r\nstuff\r\n"); /* not equal hashes because of filtering */ cl_git_pass(git_odb_hashfile(&a, "status/testfile.txt", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, "testfile.txt", GIT_OBJECT_BLOB, NULL)); cl_assert(git_oid_cmp(&a, &b)); /* not equal hashes because of filtering when specified by absolute path */ cl_git_pass(git_odb_hashfile(&a, "status/testfile.txt", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, txt.ptr, GIT_OBJECT_BLOB, NULL)); cl_assert(git_oid_cmp(&a, &b)); /* equal hashes because filter is binary */ cl_git_pass(git_odb_hashfile(&a, "status/testfile.bin", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, "testfile.bin", GIT_OBJECT_BLOB, NULL)); cl_assert_equal_oid(&a, &b); /* equal hashes because filter is binary when specified by absolute path */ cl_git_pass(git_odb_hashfile(&a, "status/testfile.bin", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, bin.ptr, GIT_OBJECT_BLOB, NULL)); cl_assert_equal_oid(&a, &b); /* equal hashes when 'as_file' points to binary filtering */ cl_git_pass(git_odb_hashfile(&a, "status/testfile.txt", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, "testfile.txt", GIT_OBJECT_BLOB, "foo.bin")); cl_assert_equal_oid(&a, &b); /* equal hashes when 'as_file' points to binary filtering (absolute path) */ cl_git_pass(git_odb_hashfile(&a, "status/testfile.txt", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, txt.ptr, GIT_OBJECT_BLOB, "foo.bin")); cl_assert_equal_oid(&a, &b); /* not equal hashes when 'as_file' points to text filtering */ cl_git_pass(git_odb_hashfile(&a, "status/testfile.bin", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, "testfile.bin", GIT_OBJECT_BLOB, "foo.txt")); cl_assert(git_oid_cmp(&a, &b)); /* not equal hashes when 'as_file' points to text filtering */ cl_git_pass(git_odb_hashfile(&a, "status/testfile.bin", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, bin.ptr, GIT_OBJECT_BLOB, "foo.txt")); cl_assert(git_oid_cmp(&a, &b)); /* equal hashes when 'as_file' is empty and turns off filtering */ cl_git_pass(git_odb_hashfile(&a, "status/testfile.txt", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, "testfile.txt", GIT_OBJECT_BLOB, "")); cl_assert_equal_oid(&a, &b); cl_git_pass(git_odb_hashfile(&a, "status/testfile.bin", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, "testfile.bin", GIT_OBJECT_BLOB, "")); cl_assert_equal_oid(&a, &b); cl_git_pass(git_odb_hashfile(&a, "status/testfile.txt", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, txt.ptr, GIT_OBJECT_BLOB, "")); cl_assert_equal_oid(&a, &b); cl_git_pass(git_odb_hashfile(&a, "status/testfile.bin", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, bin.ptr, GIT_OBJECT_BLOB, "")); cl_assert_equal_oid(&a, &b); /* some hash type failures */ cl_git_fail(git_odb_hashfile(&a, "status/testfile.txt", 0)); cl_git_fail(git_repository_hashfile(&b, _repo, "testfile.txt", GIT_OBJECT_ANY, NULL)); git_str_dispose(&txt); git_str_dispose(&bin); git_str_dispose(&root); } void test_repo_hashfile__filtered_outside_workdir(void) { git_str root = GIT_STR_INIT, txt = GIT_STR_INIT, bin = GIT_STR_INIT; char cwd[GIT_PATH_MAX]; git_oid a, b; cl_must_pass(p_getcwd(cwd, GIT_PATH_MAX)); cl_must_pass(p_mkdir("absolute", 0777)); cl_git_pass(git_str_joinpath(&root, cwd, "absolute")); cl_git_pass(git_str_joinpath(&txt, root.ptr, "testfile.txt")); cl_git_pass(git_str_joinpath(&bin, root.ptr, "testfile.bin")); cl_repo_set_bool(_repo, "core.autocrlf", true); cl_git_append2file("status/.gitattributes", "*.txt text\n*.bin binary\n\n"); /* create some sample content with CRLF in it */ cl_git_mkfile("absolute/testfile.txt", "content\r\n"); cl_git_mkfile("absolute/testfile.bin", "other\r\nstuff\r\n"); /* not equal hashes because of filtering */ cl_git_pass(git_odb_hashfile(&a, "absolute/testfile.txt", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, txt.ptr, GIT_OBJECT_BLOB, "testfile.txt")); cl_assert(git_oid_cmp(&a, &b)); /* equal hashes because filter is binary */ cl_git_pass(git_odb_hashfile(&a, "absolute/testfile.bin", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, bin.ptr, GIT_OBJECT_BLOB, "testfile.bin")); cl_assert_equal_oid(&a, &b); /* * equal hashes because no filtering occurs for absolute paths outside the working * directory unless as_path is specified */ cl_git_pass(git_odb_hashfile(&a, "absolute/testfile.txt", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, txt.ptr, GIT_OBJECT_BLOB, NULL)); cl_assert_equal_oid(&a, &b); cl_git_pass(git_odb_hashfile(&a, "absolute/testfile.bin", GIT_OBJECT_BLOB)); cl_git_pass(git_repository_hashfile(&b, _repo, bin.ptr, GIT_OBJECT_BLOB, NULL)); cl_assert_equal_oid(&a, &b); git_str_dispose(&txt); git_str_dispose(&bin); git_str_dispose(&root); }