thodg/libgit2/tests/diff/binary.c
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Hash : e4b2b919
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Date : 2015-09-25T10:37:41
Fix binary diffs git expects an empty line after the binary data: literal X ...binary data... <empty_line> The last literal block of the generated patches were not containing the required empty line. Example: diff --git a/binary_file b/binary_file index 3f1b3f9098131cfecea4a50ff8afab349ea66d22..86e5c1008b5ce635d3e3fffa4434c5eccd8f00b6 100644 GIT binary patch literal 8 Pc${NM&PdElPvrst3ey5{ literal 6 Nc${NM%g@i}0ssZ|0lokL diff --git a/binary_file2 b/binary_file2 index 31be99be19470da4af5b28b21e27896a2f2f9ee2..86e5c1008b5ce635d3e3fffa4434c5eccd8f00b6 100644 GIT binary patch literal 8 Pc${NM&PdElPvrst3ey5{ literal 13 Sc${NMEKbZyOexL+Qd|HZV+4u- git apply of that diff results in: error: corrupt binary patch at line 9: diff --git a/binary_file2 b/binary_file2 fatal: patch with only garbage at line 10 The proper formating is: diff --git a/binary_file b/binary_file index 3f1b3f9098131cfecea4a50ff8afab349ea66d22..86e5c1008b5ce635d3e3fffa4434c5eccd8f00b6 100644 GIT binary patch literal 8 Pc${NM&PdElPvrst3ey5{ literal 6 Nc${NM%g@i}0ssZ|0lokL diff --git a/binary_file2 b/binary_file2 index 31be99be19470da4af5b28b21e27896a2f2f9ee2..86e5c1008b5ce635d3e3fffa4434c5eccd8f00b6 100644 GIT binary patch literal 8 Pc${NM&PdElPvrst3ey5{ literal 13 Sc${NMEKbZyOexL+Qd|HZV+4u-
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tests/diff/binary.c
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#include "clar_libgit2.h" #include "git2/sys/diff.h" #include "buffer.h" #include "filebuf.h" #include "repository.h" static git_repository *repo; void test_diff_binary__initialize(void) { } void test_diff_binary__cleanup(void) { cl_git_sandbox_cleanup(); } void test_patch( const char *one, const char *two, const git_diff_options *opts, const char *expected) { git_oid id_one, id_two; git_index *index = NULL; git_commit *commit_one, *commit_two = NULL; git_tree *tree_one, *tree_two; git_diff *diff; git_patch *patch; git_buf actual = GIT_BUF_INIT; cl_git_pass(git_oid_fromstr(&id_one, one)); cl_git_pass(git_commit_lookup(&commit_one, repo, &id_one)); cl_git_pass(git_commit_tree(&tree_one, commit_one)); if (two) { cl_git_pass(git_oid_fromstr(&id_two, two)); cl_git_pass(git_commit_lookup(&commit_two, repo, &id_two)); cl_git_pass(git_commit_tree(&tree_two, commit_two)); } else { cl_git_pass(git_repository_index(&index, repo)); cl_git_pass(git_index_write_tree(&id_two, index)); cl_git_pass(git_tree_lookup(&tree_two, repo, &id_two)); } cl_git_pass(git_diff_tree_to_tree(&diff, repo, tree_one, tree_two, opts)); cl_git_pass(git_patch_from_diff(&patch, diff, 0)); cl_git_pass(git_patch_to_buf(&actual, patch)); cl_assert_equal_s(expected, actual.ptr); git_buf_clear(&actual); cl_git_pass(git_diff_print(diff, GIT_DIFF_FORMAT_PATCH, git_diff_print_callback__to_buf, &actual)); cl_assert_equal_s(expected, actual.ptr); git_buf_free(&actual); git_patch_free(patch); git_diff_free(diff); git_tree_free(tree_one); git_tree_free(tree_two); git_commit_free(commit_one); git_commit_free(commit_two); git_index_free(index); } void test_diff_binary__add_normal(void) { git_diff_options opts = GIT_DIFF_OPTIONS_INIT; const char *expected = "diff --git a/binary.bin b/binary.bin\n" \ "new file mode 100644\n" \ "index 0000000..bd474b2\n" \ "Binary files /dev/null and b/binary.bin differ\n"; repo = cl_git_sandbox_init("diff_format_email"); test_patch( "873806f6f27e631eb0b23e4b56bea2bfac14a373", "897d3af16ca9e420cd071b1c4541bd2b91d04c8c", &opts, expected); } void test_diff_binary__add(void) { git_diff_options opts = GIT_DIFF_OPTIONS_INIT; const char *expected = "diff --git a/binary.bin b/binary.bin\n" \ "new file mode 100644\n" \ "index 0000000000000000000000000000000000000000..bd474b2519cc15eab801ff851cc7d50f0dee49a1\n" \ "GIT binary patch\n" \ "literal 3\n" \ "Kc${Nk-~s>u4FC%O\n" "\n" \ "literal 0\n" \ "Hc$@<O00001\n" \ "\n"; opts.flags = GIT_DIFF_SHOW_BINARY; opts.id_abbrev = GIT_OID_HEXSZ; repo = cl_git_sandbox_init("diff_format_email"); test_patch( "873806f6f27e631eb0b23e4b56bea2bfac14a373", "897d3af16ca9e420cd071b1c4541bd2b91d04c8c", &opts, expected); } void test_diff_binary__modify_normal(void) { git_diff_options opts = GIT_DIFF_OPTIONS_INIT; const char *expected = "diff --git a/binary.bin b/binary.bin\n" \ "index bd474b2..9ac35ff 100644\n" \ "Binary files a/binary.bin and b/binary.bin differ\n"; repo = cl_git_sandbox_init("diff_format_email"); test_patch( "897d3af16ca9e420cd071b1c4541bd2b91d04c8c", "8d7523f6fcb2404257889abe0d96f093d9f524f9", &opts, expected); } void test_diff_binary__modify(void) { git_diff_options opts = GIT_DIFF_OPTIONS_INIT; const char *expected = "diff --git a/binary.bin b/binary.bin\n" \ "index bd474b2519cc15eab801ff851cc7d50f0dee49a1..9ac35ff15cd8864aeafd889e4826a3150f0b06c4 100644\n" \ "GIT binary patch\n" \ "literal 5\n" \ "Mc${NkU}WL~000&M4gdfE\n" \ "\n" \ "literal 3\n" \ "Kc${Nk-~s>u4FC%O\n" \ "\n"; opts.flags = GIT_DIFF_SHOW_BINARY; repo = cl_git_sandbox_init("diff_format_email"); test_patch( "897d3af16ca9e420cd071b1c4541bd2b91d04c8c", "8d7523f6fcb2404257889abe0d96f093d9f524f9", &opts, expected); } void test_diff_binary__delete_normal(void) { git_diff_options opts = GIT_DIFF_OPTIONS_INIT; const char *expected = "diff --git a/binary.bin b/binary.bin\n" \ "deleted file mode 100644\n" \ "index bd474b2..0000000\n" \ "Binary files a/binary.bin and /dev/null differ\n"; repo = cl_git_sandbox_init("diff_format_email"); test_patch( "897d3af16ca9e420cd071b1c4541bd2b91d04c8c", "873806f6f27e631eb0b23e4b56bea2bfac14a373", &opts, expected); } void test_diff_binary__delete(void) { git_diff_options opts = GIT_DIFF_OPTIONS_INIT; const char *expected = "diff --git a/binary.bin b/binary.bin\n" \ "deleted file mode 100644\n" \ "index bd474b2519cc15eab801ff851cc7d50f0dee49a1..0000000000000000000000000000000000000000\n" \ "GIT binary patch\n" \ "literal 0\n" \ "Hc$@<O00001\n" \ "\n" \ "literal 3\n" \ "Kc${Nk-~s>u4FC%O\n" \ "\n"; opts.flags = GIT_DIFF_SHOW_BINARY; opts.id_abbrev = GIT_OID_HEXSZ; repo = cl_git_sandbox_init("diff_format_email"); test_patch( "897d3af16ca9e420cd071b1c4541bd2b91d04c8c", "873806f6f27e631eb0b23e4b56bea2bfac14a373", &opts, expected); } void test_diff_binary__delta(void) { git_index *index; git_buf contents = GIT_BUF_INIT; size_t i; git_diff_options opts = GIT_DIFF_OPTIONS_INIT; const char *expected = "diff --git a/songof7cities.txt b/songof7cities.txt\n" \ "index 4210ffd5c390b21dd5483375e75288dea9ede512..cc84ec183351c9944ed90a619ca08911924055b5 100644\n" \ "GIT binary patch\n" \ "delta 198\n" \ "zc$}LmI8{(0BqLQJI6p64AwNwaIJGP_Pa)Ye#M3o+qJ$<Jl;sX*mF<MGCYv&*L7AHu\n" \ "zGA1*^gt?gYVN82wTbPO_W)+x<&1+cP;HrPHR>PQ;Y(X&QMK*C5^Br3bjG4d=XI^5@\n" \ "JfH567LIG)KJdFSV\n" \ "\n" \ "delta 198\n" \ "zc$}LmI8{(0BqLQJI6p64AwNwaIJGP_Pr*5}Br~;mqJ$<Jl;sX*mF<MGCYv&*L7AHu\n" \ "zGA1*^gt?gYVN82wTbPO_W)+x<&1+cP;HrPHR>PQ;Y(X&QMK*C5^Br3bjG4d=XI^5@\n" \ "JfH567LIF3FM2!Fd\n" \ "\n"; opts.flags = GIT_DIFF_SHOW_BINARY | GIT_DIFF_FORCE_BINARY; opts.id_abbrev = GIT_OID_HEXSZ; repo = cl_git_sandbox_init("renames"); cl_git_pass(git_repository_index(&index, repo)); cl_git_pass(git_futils_readbuffer(&contents, "renames/songof7cities.txt")); for (i = 0; i < contents.size - 6; i++) { if (strncmp(&contents.ptr[i], "Cities", 6) == 0) memcpy(&contents.ptr[i], "cITIES", 6); } cl_git_rewritefile("renames/songof7cities.txt", contents.ptr); cl_git_pass(git_index_add_bypath(index, "songof7cities.txt")); cl_git_pass(git_index_write(index)); test_patch( "19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13", NULL, &opts, expected); git_index_free(index); git_buf_free(&contents); } void test_diff_binary__delta_append(void) { git_index *index; git_diff_options opts = GIT_DIFF_OPTIONS_INIT; const char *expected = "diff --git a/untimely.txt b/untimely.txt\n" \ "index 9a69d960ae94b060f56c2a8702545e2bb1abb935..1111d4f11f4b35bf6759e0fb714fe09731ef0840 100644\n" \ "GIT binary patch\n" \ "delta 32\n" \ "nc%1vf+QYWt3zLL@hC)e3Vu?a>QDRl4f_G*?PG(-ZA}<#J$+QbW\n" \ "\n" \ "delta 7\n" \ "Oc%18D`@*{63ljhg(E~C7\n" \ "\n"; opts.flags = GIT_DIFF_SHOW_BINARY | GIT_DIFF_FORCE_BINARY; opts.id_abbrev = GIT_OID_HEXSZ; repo = cl_git_sandbox_init("renames"); cl_git_pass(git_repository_index(&index, repo)); cl_git_append2file("renames/untimely.txt", "Oh that crazy Kipling!\r\n"); cl_git_pass(git_index_add_bypath(index, "untimely.txt")); cl_git_pass(git_index_write(index)); test_patch( "19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13", NULL, &opts, expected); git_index_free(index); } void test_diff_binary__empty_for_no_diff(void) { git_diff_options opts = GIT_DIFF_OPTIONS_INIT; git_oid id; git_commit *commit; git_tree *tree; git_diff *diff; git_buf actual = GIT_BUF_INIT; opts.flags = GIT_DIFF_SHOW_BINARY | GIT_DIFF_FORCE_BINARY; opts.id_abbrev = GIT_OID_HEXSZ; repo = cl_git_sandbox_init("renames"); cl_git_pass(git_oid_fromstr(&id, "19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13")); cl_git_pass(git_commit_lookup(&commit, repo, &id)); cl_git_pass(git_commit_tree(&tree, commit)); cl_git_pass(git_diff_tree_to_tree(&diff, repo, tree, tree, &opts)); cl_git_pass(git_diff_print(diff, GIT_DIFF_FORMAT_PATCH, git_diff_print_callback__to_buf, &actual)); cl_assert_equal_s("", actual.ptr); git_buf_free(&actual); git_diff_free(diff); git_commit_free(commit); git_tree_free(tree); } void test_diff_binary__index_to_workdir(void) { git_index *index; git_diff *diff; git_patch *patch; git_buf actual = GIT_BUF_INIT; git_diff_options opts = GIT_DIFF_OPTIONS_INIT; const char *expected = "diff --git a/untimely.txt b/untimely.txt\n" \ "index 9a69d960ae94b060f56c2a8702545e2bb1abb935..1111d4f11f4b35bf6759e0fb714fe09731ef0840 100644\n" \ "GIT binary patch\n" \ "delta 32\n" \ "nc%1vf+QYWt3zLL@hC)e3Vu?a>QDRl4f_G*?PG(-ZA}<#J$+QbW\n" \ "\n" \ "delta 7\n" \ "Oc%18D`@*{63ljhg(E~C7\n" \ "\n"; opts.flags = GIT_DIFF_SHOW_BINARY | GIT_DIFF_FORCE_BINARY; opts.id_abbrev = GIT_OID_HEXSZ; repo = cl_git_sandbox_init("renames"); cl_git_pass(git_repository_index(&index, repo)); cl_git_append2file("renames/untimely.txt", "Oh that crazy Kipling!\r\n"); cl_git_pass(git_diff_index_to_workdir(&diff, repo, index, &opts)); cl_git_pass(git_patch_from_diff(&patch, diff, 0)); cl_git_pass(git_patch_to_buf(&actual, patch)); cl_assert_equal_s(expected, actual.ptr); cl_git_pass(git_index_add_bypath(index, "untimely.txt")); cl_git_pass(git_index_write(index)); test_patch( "19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13", NULL, &opts, expected); git_buf_free(&actual); git_patch_free(patch); git_diff_free(diff); git_index_free(index); } static int print_cb( const git_diff_delta *delta, const git_diff_hunk *hunk, const git_diff_line *line, void *payload) { git_buf *buf = (git_buf *)payload; GIT_UNUSED(delta); if (hunk) git_buf_put(buf, hunk->header, hunk->header_len); if (line) git_buf_put(buf, line->content, line->content_len); return git_buf_oom(buf) ? -1 : 0; } void test_diff_binary__print_patch_from_diff(void) { git_index *index; git_diff *diff; git_buf actual = GIT_BUF_INIT; git_diff_options opts = GIT_DIFF_OPTIONS_INIT; const char *expected = "diff --git a/untimely.txt b/untimely.txt\n" \ "index 9a69d960ae94b060f56c2a8702545e2bb1abb935..1111d4f11f4b35bf6759e0fb714fe09731ef0840 100644\n" \ "GIT binary patch\n" \ "delta 32\n" \ "nc%1vf+QYWt3zLL@hC)e3Vu?a>QDRl4f_G*?PG(-ZA}<#J$+QbW\n" \ "\n" \ "delta 7\n" \ "Oc%18D`@*{63ljhg(E~C7\n" \ "\n"; opts.flags = GIT_DIFF_SHOW_BINARY | GIT_DIFF_FORCE_BINARY; opts.id_abbrev = GIT_OID_HEXSZ; repo = cl_git_sandbox_init("renames"); cl_git_pass(git_repository_index(&index, repo)); cl_git_append2file("renames/untimely.txt", "Oh that crazy Kipling!\r\n"); cl_git_pass(git_diff_index_to_workdir(&diff, repo, index, &opts)); cl_git_pass(git_diff_print(diff, GIT_DIFF_FORMAT_PATCH, print_cb, &actual)); cl_assert_equal_s(expected, actual.ptr); git_buf_free(&actual); git_diff_free(diff); git_index_free(index); } struct diff_data { char *old_path; git_oid old_id; git_buf old_binary_base85; size_t old_binary_inflatedlen; git_diff_binary_t old_binary_type; char *new_path; git_oid new_id; git_buf new_binary_base85; size_t new_binary_inflatedlen; git_diff_binary_t new_binary_type; }; static int file_cb( const git_diff_delta *delta, float progress, void *payload) { struct diff_data *diff_data = payload; GIT_UNUSED(progress); if (delta->old_file.path) diff_data->old_path = git__strdup(delta->old_file.path); if (delta->new_file.path) diff_data->new_path = git__strdup(delta->new_file.path); git_oid_cpy(&diff_data->old_id, &delta->old_file.id); git_oid_cpy(&diff_data->new_id, &delta->new_file.id); return 0; } static int binary_cb( const git_diff_delta *delta, const git_diff_binary *binary, void *payload) { struct diff_data *diff_data = payload; GIT_UNUSED(delta); git_buf_encode_base85(&diff_data->old_binary_base85, binary->old_file.data, binary->old_file.datalen); diff_data->old_binary_inflatedlen = binary->old_file.inflatedlen; diff_data->old_binary_type = binary->old_file.type; git_buf_encode_base85(&diff_data->new_binary_base85, binary->new_file.data, binary->new_file.datalen); diff_data->new_binary_inflatedlen = binary->new_file.inflatedlen; diff_data->new_binary_type = binary->new_file.type; return 0; } static int hunk_cb( const git_diff_delta *delta, const git_diff_hunk *hunk, void *payload) { GIT_UNUSED(delta); GIT_UNUSED(hunk); GIT_UNUSED(payload); cl_fail("did not expect hunk callback"); return 0; } static int line_cb( const git_diff_delta *delta, const git_diff_hunk *hunk, const git_diff_line *line, void *payload) { GIT_UNUSED(delta); GIT_UNUSED(hunk); GIT_UNUSED(line); GIT_UNUSED(payload); cl_fail("did not expect line callback"); return 0; } void test_diff_binary__blob_to_blob(void) { git_index *index; git_diff_options opts = GIT_DIFF_OPTIONS_INIT; git_blob *old_blob, *new_blob; git_oid old_id, new_id; struct diff_data diff_data = {0}; opts.flags = GIT_DIFF_SHOW_BINARY | GIT_DIFF_FORCE_BINARY; opts.id_abbrev = GIT_OID_HEXSZ; repo = cl_git_sandbox_init("renames"); cl_git_pass(git_repository_index__weakptr(&index, repo)); cl_git_append2file("renames/untimely.txt", "Oh that crazy Kipling!\r\n"); cl_git_pass(git_index_add_bypath(index, "untimely.txt")); cl_git_pass(git_index_write(index)); git_oid_fromstr(&old_id, "9a69d960ae94b060f56c2a8702545e2bb1abb935"); git_oid_fromstr(&new_id, "1111d4f11f4b35bf6759e0fb714fe09731ef0840"); cl_git_pass(git_blob_lookup(&old_blob, repo, &old_id)); cl_git_pass(git_blob_lookup(&new_blob, repo, &new_id)); cl_git_pass(git_diff_blobs(old_blob, "untimely.txt", new_blob, "untimely.txt", &opts, file_cb, binary_cb, hunk_cb, line_cb, &diff_data)); cl_assert_equal_s("untimely.txt", diff_data.old_path); cl_assert_equal_oid(&old_id, &diff_data.old_id); cl_assert_equal_i(GIT_DIFF_BINARY_DELTA, diff_data.old_binary_type); cl_assert_equal_i(7, diff_data.old_binary_inflatedlen); cl_assert_equal_s("c%18D`@*{63ljhg(E~C7", diff_data.old_binary_base85.ptr); cl_assert_equal_s("untimely.txt", diff_data.new_path); cl_assert_equal_oid(&new_id, &diff_data.new_id); cl_assert_equal_i(GIT_DIFF_BINARY_DELTA, diff_data.new_binary_type); cl_assert_equal_i(32, diff_data.new_binary_inflatedlen); cl_assert_equal_s("c%1vf+QYWt3zLL@hC)e3Vu?a>QDRl4f_G*?PG(-ZA}<#J$+QbW", diff_data.new_binary_base85.ptr); git_blob_free(old_blob); git_blob_free(new_blob); git__free(diff_data.old_path); git__free(diff_data.new_path); git_buf_free(&diff_data.old_binary_base85); git_buf_free(&diff_data.new_binary_base85); }