thodg/libgit2/tests/merge/workdir/submodules.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/merge/workdir/submodules.c
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#include "clar_libgit2.h" #include "git2/repository.h" #include "git2/merge.h" #include "merge.h" #include "../merge_helpers.h" static git_repository *repo; #define TEST_REPO_PATH "merge-resolve" #define SUBMODULE_MAIN_BRANCH "submodules" #define SUBMODULE_OTHER_BRANCH "submodules-branch" #define SUBMODULE_OTHER2_BRANCH "submodules-branch2" #define SUBMODULE_DELETE_BRANCH "delete-submodule" #define TEST_INDEX_PATH TEST_REPO_PATH "/.git/index" /* Fixture setup and teardown */ void test_merge_workdir_submodules__initialize(void) { repo = cl_git_sandbox_init(TEST_REPO_PATH); } void test_merge_workdir_submodules__cleanup(void) { cl_git_sandbox_cleanup(); } void test_merge_workdir_submodules__automerge(void) { git_reference *our_ref, *their_ref; git_commit *our_commit; git_annotated_commit *their_head; git_index *index; struct merge_index_entry merge_index_entries[] = { { 0100644, "caff6b7d44973f53e3e0cf31d0d695188b19aec6", 0, ".gitmodules" }, { 0100644, "950a663a6a7b2609eed1ed1ba9f41eb1a3192a9f", 0, "file1.txt" }, { 0100644, "343e660b9cb4bee5f407c2e33fcb9df24d9407a4", 0, "file2.txt" }, { 0160000, "d3d806a4bef96889117fd7ebac0e3cb5ec152932", 1, "submodule" }, { 0160000, "297aa6cd028b3336c7802c7a6f49143da4e1602d", 2, "submodule" }, { 0160000, "ae39c77c70cb6bad18bb471912460c4e1ba0f586", 3, "submodule" }, }; cl_git_pass(git_reference_lookup(&our_ref, repo, "refs/heads/" SUBMODULE_MAIN_BRANCH)); cl_git_pass(git_commit_lookup(&our_commit, repo, git_reference_target(our_ref))); cl_git_pass(git_reset(repo, (git_object *)our_commit, GIT_RESET_HARD, NULL)); cl_git_pass(git_reference_lookup(&their_ref, repo, "refs/heads/" SUBMODULE_OTHER_BRANCH)); cl_git_pass(git_annotated_commit_from_ref(&their_head, repo, their_ref)); cl_git_pass(git_merge(repo, (const git_annotated_commit **)&their_head, 1, NULL, NULL)); cl_git_pass(git_repository_index(&index, repo)); cl_assert(merge_test_index(index, merge_index_entries, 6)); git_index_free(index); git_annotated_commit_free(their_head); git_commit_free(our_commit); git_reference_free(their_ref); git_reference_free(our_ref); } void test_merge_workdir_submodules__take_changed(void) { git_reference *our_ref, *their_ref; git_commit *our_commit; git_annotated_commit *their_head; git_index *index; struct merge_index_entry merge_index_entries[] = { { 0100644, "caff6b7d44973f53e3e0cf31d0d695188b19aec6", 0, ".gitmodules" }, { 0100644, "b438ff23300b2e0f80b84a6f30140dfa91e71423", 0, "file1.txt" }, { 0100644, "f27fbafdfa6693f8f7a5128506fe3e338dbfcad2", 0, "file2.txt" }, { 0160000, "297aa6cd028b3336c7802c7a6f49143da4e1602d", 0, "submodule" }, }; cl_git_pass(git_reference_lookup(&our_ref, repo, "refs/heads/" SUBMODULE_MAIN_BRANCH)); cl_git_pass(git_commit_lookup(&our_commit, repo, git_reference_target(our_ref))); cl_git_pass(git_reset(repo, (git_object *)our_commit, GIT_RESET_HARD, NULL)); cl_git_pass(git_reference_lookup(&their_ref, repo, "refs/heads/" SUBMODULE_OTHER2_BRANCH)); cl_git_pass(git_annotated_commit_from_ref(&their_head, repo, their_ref)); cl_git_pass(git_merge(repo, (const git_annotated_commit **)&their_head, 1, NULL, NULL)); cl_git_pass(git_repository_index(&index, repo)); cl_assert(merge_test_index(index, merge_index_entries, 4)); git_index_free(index); git_annotated_commit_free(their_head); git_commit_free(our_commit); git_reference_free(their_ref); git_reference_free(our_ref); } void test_merge_workdir_submodules__update_delete_conflict(void) { git_reference *our_ref, *their_ref; git_commit *our_commit; git_annotated_commit *their_head; git_index *index; struct merge_index_entry merge_index_entries[] = { { 0100644, "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391", 0, ".gitmodules" }, { 0100644, "5887a5e516c53bd58efb0f02ec6aa031b6fe9ad7", 0, "file1.txt" }, { 0100644, "4218670ab81cc219a9f94befb5c5dad90ec52648", 0, "file2.txt" }, { 0160000, "d3d806a4bef96889117fd7ebac0e3cb5ec152932", 1, "submodule"}, { 0160000, "297aa6cd028b3336c7802c7a6f49143da4e1602d", 3, "submodule" }, }; cl_git_pass(git_reference_lookup(&our_ref, repo, "refs/heads/" SUBMODULE_DELETE_BRANCH)); cl_git_pass(git_commit_lookup(&our_commit, repo, git_reference_target(our_ref))); cl_git_pass(git_reset(repo, (git_object *)our_commit, GIT_RESET_HARD, NULL)); cl_git_pass(git_reference_lookup(&their_ref, repo, "refs/heads/" SUBMODULE_MAIN_BRANCH)); cl_git_pass(git_annotated_commit_from_ref(&their_head, repo, their_ref)); cl_git_pass(git_merge(repo, (const git_annotated_commit **)&their_head, 1, NULL, NULL)); cl_git_pass(git_repository_index(&index, repo)); cl_assert(merge_test_index(index, merge_index_entries, 5)); git_index_free(index); git_annotated_commit_free(their_head); git_commit_free(our_commit); git_reference_free(their_ref); git_reference_free(our_ref); }