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fuchsia / third_party / libgit2 / e94be4c01c5b6b2cd849a9accf80f3f93d429a76 / . / tests / diff / rename.c
blob: c1cd252391860cd35c6d9fa589998f9f0a1ebd71 [file] [log] [blame]
#include "clar_libgit2.h"
#include "diff_helpers.h"
#include "buf_text.h"
static git_repository *g_repo = NULL;
void test_diff_rename__initialize(void)
{
g_repo = cl_git_sandbox_init("renames");
cl_repo_set_bool(g_repo, "core.autocrlf", false);
}
void test_diff_rename__cleanup(void)
{
cl_git_sandbox_cleanup();
}
/*
* Renames repo has:
*
* commit 31e47d8c1fa36d7f8d537b96158e3f024de0a9f2 -
* serving.txt (25 lines)
* sevencities.txt (50 lines)
* commit 2bc7f351d20b53f1c72c16c4b036e491c478c49a -
* serving.txt -> sixserving.txt (rename, no change, 100% match)
* sevencities.txt -> sevencities.txt (no change)
* sevencities.txt -> songofseven.txt (copy, no change, 100% match)
* commit 1c068dee5790ef1580cfc4cd670915b48d790084
* songofseven.txt -> songofseven.txt (major rewrite, <20% match - split)
* sixserving.txt -> sixserving.txt (indentation change)
* sixserving.txt -> ikeepsix.txt (copy, add title, >80% match)
* sevencities.txt (no change)
* commit 19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13
* songofseven.txt -> untimely.txt (rename, convert to crlf)
* ikeepsix.txt -> ikeepsix.txt (reorder sections in file)
* sixserving.txt -> sixserving.txt (whitespace change - not just indent)
* sevencities.txt -> songof7cities.txt (rename, small text changes)
*/
void test_diff_rename__match_oid(void)
{
const char *old_sha = "31e47d8c1fa36d7f8d537b96158e3f024de0a9f2";
const char *new_sha = "2bc7f351d20b53f1c72c16c4b036e491c478c49a";
git_tree *old_tree, *new_tree;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
diff_expects exp;
old_tree = resolve_commit_oid_to_tree(g_repo, old_sha);
new_tree = resolve_commit_oid_to_tree(g_repo, new_sha);
/* Must pass GIT_DIFF_INCLUDE_UNMODIFIED if you expect to emulate
* --find-copies-harder during rename transformion...
*/
diffopts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, old_tree, new_tree, &diffopts));
/* git diff --no-renames \
* 31e47d8c1fa36d7f8d537b96158e3f024de0a9f2 \
* 2bc7f351d20b53f1c72c16c4b036e491c478c49a
*/
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_ADDED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
/* git diff 31e47d8c1fa36d7f8d537b96158e3f024de0a9f2 \
* 2bc7f351d20b53f1c72c16c4b036e491c478c49a
* don't use NULL opts to avoid config `diff.renames` contamination
*/
opts.flags = GIT_DIFF_FIND_RENAMES;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(3, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_ADDED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_RENAMED]);
git_diff_free(diff);
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, old_tree, new_tree, &diffopts));
/* git diff --find-copies-harder \
* 31e47d8c1fa36d7f8d537b96158e3f024de0a9f2 \
* 2bc7f351d20b53f1c72c16c4b036e491c478c49a
*/
opts.flags = GIT_DIFF_FIND_COPIES_FROM_UNMODIFIED;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(3, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_COPIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_RENAMED]);
git_diff_free(diff);
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, old_tree, new_tree, &diffopts));
/* git diff --find-copies-harder -M100 -B100 \
* 31e47d8c1fa36d7f8d537b96158e3f024de0a9f2 \
* 2bc7f351d20b53f1c72c16c4b036e491c478c49a
*/
opts.flags = GIT_DIFF_FIND_COPIES_FROM_UNMODIFIED |
GIT_DIFF_FIND_EXACT_MATCH_ONLY;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(3, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_COPIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_RENAMED]);
git_diff_free(diff);
git_tree_free(old_tree);
git_tree_free(new_tree);
}
void test_diff_rename__checks_options_version(void)
{
const char *old_sha = "31e47d8c1fa36d7f8d537b96158e3f024de0a9f2";
const char *new_sha = "2bc7f351d20b53f1c72c16c4b036e491c478c49a";
git_tree *old_tree, *new_tree;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
const git_error *err;
old_tree = resolve_commit_oid_to_tree(g_repo, old_sha);
new_tree = resolve_commit_oid_to_tree(g_repo, new_sha);
diffopts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, old_tree, new_tree, &diffopts));
opts.version = 0;
cl_git_fail(git_diff_find_similar(diff, &opts));
err = giterr_last();
cl_assert_equal_i(GITERR_INVALID, err->klass);
giterr_clear();
opts.version = 1024;
cl_git_fail(git_diff_find_similar(diff, &opts));
err = giterr_last();
cl_assert_equal_i(GITERR_INVALID, err->klass);
git_diff_free(diff);
git_tree_free(old_tree);
git_tree_free(new_tree);
}
void test_diff_rename__not_exact_match(void)
{
const char *sha0 = "2bc7f351d20b53f1c72c16c4b036e491c478c49a";
const char *sha1 = "1c068dee5790ef1580cfc4cd670915b48d790084";
const char *sha2 = "19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13";
git_tree *old_tree, *new_tree;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
diff_expects exp;
/* == Changes =====================================================
* songofseven.txt -> songofseven.txt (major rewrite, <20% match - split)
* sixserving.txt -> sixserving.txt (indentation change)
* sixserving.txt -> ikeepsix.txt (copy, add title, >80% match)
* sevencities.txt (no change)
*/
old_tree = resolve_commit_oid_to_tree(g_repo, sha0);
new_tree = resolve_commit_oid_to_tree(g_repo, sha1);
/* Must pass GIT_DIFF_INCLUDE_UNMODIFIED if you expect to emulate
* --find-copies-harder during rename transformion...
*/
diffopts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, old_tree, new_tree, &diffopts));
/* git diff --no-renames \
* 2bc7f351d20b53f1c72c16c4b036e491c478c49a \
* 1c068dee5790ef1580cfc4cd670915b48d790084
*/
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_ADDED]);
/* git diff -M 2bc7f351d20b53f1c72c16c4b036e491c478c49a \
* 1c068dee5790ef1580cfc4cd670915b48d790084
*
* must not pass NULL for opts because it will pick up environment
* values for "diff.renames" and test won't be consistent.
*/
opts.flags = GIT_DIFF_FIND_RENAMES;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_ADDED]);
git_diff_free(diff);
/* git diff -M -C \
* 2bc7f351d20b53f1c72c16c4b036e491c478c49a \
* 1c068dee5790ef1580cfc4cd670915b48d790084
*/
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, old_tree, new_tree, &diffopts));
opts.flags = GIT_DIFF_FIND_RENAMES | GIT_DIFF_FIND_COPIES;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_COPIED]);
git_diff_free(diff);
/* git diff -M -C --find-copies-harder --break-rewrites \
* 2bc7f351d20b53f1c72c16c4b036e491c478c49a \
* 1c068dee5790ef1580cfc4cd670915b48d790084
*/
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, old_tree, new_tree, &diffopts));
opts.flags = GIT_DIFF_FIND_ALL;
opts.break_rewrite_threshold = 70;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(5, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_ADDED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_COPIED]);
git_diff_free(diff);
/* == Changes =====================================================
* songofseven.txt -> untimely.txt (rename, convert to crlf)
* ikeepsix.txt -> ikeepsix.txt (reorder sections in file)
* sixserving.txt -> sixserving.txt (whitespace - not just indent)
* sevencities.txt -> songof7cities.txt (rename, small text changes)
*/
git_tree_free(old_tree);
old_tree = new_tree;
new_tree = resolve_commit_oid_to_tree(g_repo, sha2);
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, old_tree, new_tree, &diffopts));
/* git diff --no-renames \
* 1c068dee5790ef1580cfc4cd670915b48d790084 \
* 19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13
*/
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(6, exp.files);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_ADDED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_DELETED]);
git_diff_free(diff);
/* git diff -M -C \
* 1c068dee5790ef1580cfc4cd670915b48d790084 \
* 19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13
*/
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, old_tree, new_tree, &diffopts));
opts.flags = GIT_DIFF_FIND_RENAMES | GIT_DIFF_FIND_COPIES;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_RENAMED]);
git_diff_free(diff);
/* git diff -M -C --find-copies-harder --break-rewrites \
* 1c068dee5790ef1580cfc4cd670915b48d790084 \
* 19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13
* with libgit2 default similarity comparison...
*/
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, old_tree, new_tree, &diffopts));
opts.flags = GIT_DIFF_FIND_ALL;
cl_git_pass(git_diff_find_similar(diff, &opts));
/* the default match algorithm is going to find the internal
* whitespace differences in the lines of sixserving.txt to be
* significant enough that this will decide to split it into an ADD
* and a DELETE
*/
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(5, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_ADDED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_RENAMED]);
git_diff_free(diff);
/* git diff -M -C --find-copies-harder --break-rewrites \
* 1c068dee5790ef1580cfc4cd670915b48d790084 \
* 19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13
* with ignore_space whitespace comparision
*/
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, old_tree, new_tree, &diffopts));
opts.flags = GIT_DIFF_FIND_ALL | GIT_DIFF_FIND_IGNORE_WHITESPACE;
cl_git_pass(git_diff_find_similar(diff, &opts));
/* Ignoring whitespace, this should no longer split sixserver.txt */
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_RENAMED]);
git_diff_free(diff);
git_tree_free(old_tree);
git_tree_free(new_tree);
}
void test_diff_rename__test_small_files(void)
{
git_index *index;
git_reference *head_reference;
git_commit *head_commit;
git_tree *head_tree;
git_tree *commit_tree;
git_signature *signature;
git_diff *diff;
git_oid oid;
const git_diff_delta *delta;
git_diff_options diff_options = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options find_options = GIT_DIFF_FIND_OPTIONS_INIT;
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_mkfile("renames/small.txt", "Hello World!\n");
cl_git_pass(git_index_add_bypath(index, "small.txt"));
cl_git_pass(git_repository_head(&head_reference, g_repo));
cl_git_pass(git_reference_peel((git_object**)&head_commit, head_reference, GIT_OBJ_COMMIT));
cl_git_pass(git_commit_tree(&head_tree, head_commit));
cl_git_pass(git_index_write_tree(&oid, index));
cl_git_pass(git_tree_lookup(&commit_tree, g_repo, &oid));
cl_git_pass(git_signature_new(&signature, "Rename", "rename@example.com", 1404157834, 0));
cl_git_pass(git_commit_create(&oid, g_repo, "HEAD", signature, signature, NULL, "Test commit", commit_tree, 1, (const git_commit**)&head_commit));
cl_git_mkfile("renames/copy.txt", "Hello World!\n");
cl_git_rmfile("renames/small.txt");
diff_options.flags = GIT_DIFF_INCLUDE_UNTRACKED;
cl_git_pass(git_diff_tree_to_workdir(&diff, g_repo, commit_tree, &diff_options));
find_options.flags = GIT_DIFF_FIND_RENAMES | GIT_DIFF_FIND_FOR_UNTRACKED;
cl_git_pass(git_diff_find_similar(diff, &find_options));
cl_assert_equal_i(git_diff_num_deltas(diff), 1);
delta = git_diff_get_delta(diff, 0);
cl_assert_equal_i(delta->status, GIT_DELTA_RENAMED);
cl_assert_equal_s(delta->old_file.path, "small.txt");
cl_assert_equal_s(delta->new_file.path, "copy.txt");
git_diff_free(diff);
git_signature_free(signature);
git_tree_free(commit_tree);
git_tree_free(head_tree);
git_commit_free(head_commit);
git_reference_free(head_reference);
git_index_free(index);
}
void test_diff_rename__working_directory_changes(void)
{
const char *sha0 = "2bc7f351d20b53f1c72c16c4b036e491c478c49a";
const char *blobsha = "66311f5cfbe7836c27510a3ba2f43e282e2c8bba";
git_oid id;
git_tree *tree;
git_blob *blob;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
diff_expects exp;
git_buf old_content = GIT_BUF_INIT, content = GIT_BUF_INIT;;
tree = resolve_commit_oid_to_tree(g_repo, sha0);
diffopts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED | GIT_DIFF_INCLUDE_UNTRACKED;
/*
$ git cat-file -p 2bc7f351d20b53f1c72c16c4b036e491c478c49a^{tree}
100644 blob 66311f5cfbe7836c27510a3ba2f43e282e2c8bba sevencities.txt
100644 blob ad0a8e55a104ac54a8a29ed4b84b49e76837a113 sixserving.txt
100644 blob 66311f5cfbe7836c27510a3ba2f43e282e2c8bba songofseven.txt
$ for f in *.txt; do
echo `git hash-object -t blob $f` $f
done
eaf4a3e3bfe68585e90cada20736ace491cd100b ikeepsix.txt
f90d4fc20ecddf21eebe6a37e9225d244339d2b5 sixserving.txt
4210ffd5c390b21dd5483375e75288dea9ede512 songof7cities.txt
9a69d960ae94b060f56c2a8702545e2bb1abb935 untimely.txt
*/
cl_git_pass(git_diff_tree_to_workdir(&diff, g_repo, tree, &diffopts));
/* git diff --no-renames 2bc7f351d20b53f1c72c16c4b036e491c478c49a */
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(6, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(3, exp.file_status[GIT_DELTA_UNTRACKED]);
/* git diff -M 2bc7f351d20b53f1c72c16c4b036e491c478c49a */
opts.flags = GIT_DIFF_FIND_ALL;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(5, exp.files);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_RENAMED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_UNTRACKED]);
git_diff_free(diff);
/* rewrite files in the working directory with / without CRLF changes */
cl_git_pass(
git_futils_readbuffer(&old_content, "renames/songof7cities.txt"));
cl_git_pass(
git_buf_text_lf_to_crlf(&content, &old_content));
cl_git_pass(
git_futils_writebuffer(&content, "renames/songof7cities.txt", 0, 0));
cl_git_pass(git_diff_tree_to_workdir(&diff, g_repo, tree, &diffopts));
/* git diff -M 2bc7f351d20b53f1c72c16c4b036e491c478c49a */
opts.flags = GIT_DIFF_FIND_ALL;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(5, exp.files);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_RENAMED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_UNTRACKED]);
git_diff_free(diff);
/* try a different whitespace option */
cl_git_pass(git_diff_tree_to_workdir(&diff, g_repo, tree, &diffopts));
opts.flags = GIT_DIFF_FIND_ALL | GIT_DIFF_FIND_DONT_IGNORE_WHITESPACE;
opts.rename_threshold = 70;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(6, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_RENAMED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(3, exp.file_status[GIT_DELTA_UNTRACKED]);
git_diff_free(diff);
/* try a different matching option */
cl_git_pass(git_diff_tree_to_workdir(&diff, g_repo, tree, &diffopts));
opts.flags = GIT_DIFF_FIND_ALL | GIT_DIFF_FIND_EXACT_MATCH_ONLY;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(6, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(3, exp.file_status[GIT_DELTA_UNTRACKED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_DELETED]);
git_diff_free(diff);
/* again with exact match blob */
cl_git_pass(git_oid_fromstr(&id, blobsha));
cl_git_pass(git_blob_lookup(&blob, g_repo, &id));
cl_git_pass(git_buf_set(
&content, git_blob_rawcontent(blob), (size_t)git_blob_rawsize(blob)));
cl_git_rewritefile("renames/songof7cities.txt", content.ptr);
git_blob_free(blob);
cl_git_pass(git_diff_tree_to_workdir(&diff, g_repo, tree, &diffopts));
opts.flags = GIT_DIFF_FIND_ALL | GIT_DIFF_FIND_EXACT_MATCH_ONLY;
cl_git_pass(git_diff_find_similar(diff, &opts));
/*
fprintf(stderr, "\n\n");
diff_print_raw(stderr, diff);
*/
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(5, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_RENAMED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_UNTRACKED]);
git_diff_free(diff);
git_tree_free(tree);
git_buf_free(&content);
git_buf_free(&old_content);
}
void test_diff_rename__patch(void)
{
const char *sha0 = "2bc7f351d20b53f1c72c16c4b036e491c478c49a";
const char *sha1 = "1c068dee5790ef1580cfc4cd670915b48d790084";
git_tree *old_tree, *new_tree;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
git_patch *patch;
const git_diff_delta *delta;
git_buf buf = GIT_BUF_INIT;
const char *expected = "diff --git a/sixserving.txt b/ikeepsix.txt\nindex ad0a8e5..36020db 100644\n--- a/sixserving.txt\n+++ b/ikeepsix.txt\n@@ -1,3 +1,6 @@\n+I Keep Six Honest Serving-Men\n+=============================\n+\n I KEEP six honest serving-men\n (They taught me all I knew);\n Their names are What and Why and When\n@@ -21,4 +24,4 @@ She sends'em abroad on her own affairs,\n One million Hows, two million Wheres,\n And seven million Whys!\n \n- -- Rudyard Kipling\n+ -- Rudyard Kipling\n";
old_tree = resolve_commit_oid_to_tree(g_repo, sha0);
new_tree = resolve_commit_oid_to_tree(g_repo, sha1);
diffopts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, old_tree, new_tree, &diffopts));
opts.flags = GIT_DIFF_FIND_RENAMES | GIT_DIFF_FIND_COPIES;
cl_git_pass(git_diff_find_similar(diff, &opts));
/* == Changes =====================================================
* sixserving.txt -> ikeepsix.txt (copy, add title, >80% match)
* sevencities.txt (no change)
* sixserving.txt -> sixserving.txt (indentation change)
* songofseven.txt -> songofseven.txt (major rewrite, <20% match - split)
*/
cl_assert_equal_i(4, (int)git_diff_num_deltas(diff));
cl_git_pass(git_patch_from_diff(&patch, diff, 0));
cl_assert((delta = git_patch_get_delta(patch)) != NULL);
cl_assert_equal_i(GIT_DELTA_COPIED, (int)delta->status);
cl_git_pass(git_patch_to_buf(&buf, patch));
cl_assert_equal_s(expected, buf.ptr);
git_buf_free(&buf);
git_patch_free(patch);
cl_assert((delta = git_diff_get_delta(diff, 1)) != NULL);
cl_assert_equal_i(GIT_DELTA_UNMODIFIED, (int)delta->status);
cl_assert((delta = git_diff_get_delta(diff, 2)) != NULL);
cl_assert_equal_i(GIT_DELTA_MODIFIED, (int)delta->status);
cl_assert((delta = git_diff_get_delta(diff, 3)) != NULL);
cl_assert_equal_i(GIT_DELTA_MODIFIED, (int)delta->status);
git_diff_free(diff);
git_tree_free(old_tree);
git_tree_free(new_tree);
}
void test_diff_rename__file_exchange(void)
{
git_buf c1 = GIT_BUF_INIT, c2 = GIT_BUF_INIT;
git_index *index;
git_tree *tree;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
diff_expects exp;
cl_git_pass(git_futils_readbuffer(&c1, "renames/untimely.txt"));
cl_git_pass(git_futils_readbuffer(&c2, "renames/songof7cities.txt"));
cl_git_pass(git_futils_writebuffer(&c1, "renames/songof7cities.txt", 0, 0));
cl_git_pass(git_futils_writebuffer(&c2, "renames/untimely.txt", 0, 0));
cl_git_pass(
git_revparse_single((git_object **)&tree, g_repo, "HEAD^{tree}"));
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(git_index_read_tree(index, tree));
cl_git_pass(git_index_add_bypath(index, "songof7cities.txt"));
cl_git_pass(git_index_add_bypath(index, "untimely.txt"));
cl_git_pass(git_diff_tree_to_index(&diff, g_repo, tree, index, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(2, exp.files);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
opts.flags = GIT_DIFF_FIND_ALL;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(2, exp.files);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_RENAMED]);
git_diff_free(diff);
git_tree_free(tree);
git_index_free(index);
git_buf_free(&c1);
git_buf_free(&c2);
}
void test_diff_rename__file_exchange_three(void)
{
git_buf c1 = GIT_BUF_INIT, c2 = GIT_BUF_INIT, c3 = GIT_BUF_INIT;
git_index *index;
git_tree *tree;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
diff_expects exp;
cl_git_pass(git_futils_readbuffer(&c1, "renames/untimely.txt"));
cl_git_pass(git_futils_readbuffer(&c2, "renames/songof7cities.txt"));
cl_git_pass(git_futils_readbuffer(&c3, "renames/ikeepsix.txt"));
cl_git_pass(git_futils_writebuffer(&c1, "renames/ikeepsix.txt", 0, 0));
cl_git_pass(git_futils_writebuffer(&c2, "renames/untimely.txt", 0, 0));
cl_git_pass(git_futils_writebuffer(&c3, "renames/songof7cities.txt", 0, 0));
cl_git_pass(
git_revparse_single((git_object **)&tree, g_repo, "HEAD^{tree}"));
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(git_index_read_tree(index, tree));
cl_git_pass(git_index_add_bypath(index, "songof7cities.txt"));
cl_git_pass(git_index_add_bypath(index, "untimely.txt"));
cl_git_pass(git_index_add_bypath(index, "ikeepsix.txt"));
cl_git_pass(git_diff_tree_to_index(&diff, g_repo, tree, index, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(3, exp.files);
cl_assert_equal_i(3, exp.file_status[GIT_DELTA_MODIFIED]);
opts.flags = GIT_DIFF_FIND_ALL;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(3, exp.files);
cl_assert_equal_i(3, exp.file_status[GIT_DELTA_RENAMED]);
git_diff_free(diff);
git_tree_free(tree);
git_index_free(index);
git_buf_free(&c1);
git_buf_free(&c2);
git_buf_free(&c3);
}
void test_diff_rename__file_partial_exchange(void)
{
git_buf c1 = GIT_BUF_INIT, c2 = GIT_BUF_INIT;
git_index *index;
git_tree *tree;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
diff_expects exp;
int i;
cl_git_pass(git_futils_readbuffer(&c1, "renames/untimely.txt"));
cl_git_pass(git_futils_writebuffer(&c1, "renames/songof7cities.txt", 0, 0));
for (i = 0; i < 100; ++i)
cl_git_pass(git_buf_puts(&c2, "this is not the content you are looking for\n"));
cl_git_pass(git_futils_writebuffer(&c2, "renames/untimely.txt", 0, 0));
cl_git_pass(
git_revparse_single((git_object **)&tree, g_repo, "HEAD^{tree}"));
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(git_index_read_tree(index, tree));
cl_git_pass(git_index_add_bypath(index, "songof7cities.txt"));
cl_git_pass(git_index_add_bypath(index, "untimely.txt"));
cl_git_pass(git_diff_tree_to_index(&diff, g_repo, tree, index, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(2, exp.files);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
opts.flags = GIT_DIFF_FIND_ALL;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(3, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_RENAMED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_ADDED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
git_diff_free(diff);
git_tree_free(tree);
git_index_free(index);
git_buf_free(&c1);
git_buf_free(&c2);
}
void test_diff_rename__rename_and_copy_from_same_source(void)
{
git_buf c1 = GIT_BUF_INIT, c2 = GIT_BUF_INIT;
git_index *index;
git_tree *tree;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
diff_expects exp;
/* put the first 2/3 of file into one new place
* and the second 2/3 of file into another new place
*/
cl_git_pass(git_futils_readbuffer(&c1, "renames/songof7cities.txt"));
cl_git_pass(git_buf_set(&c2, c1.ptr, c1.size));
git_buf_truncate(&c1, c1.size * 2 / 3);
git_buf_consume(&c2, ((char *)c2.ptr) + (c2.size / 3));
cl_git_pass(git_futils_writebuffer(&c1, "renames/song_a.txt", 0, 0));
cl_git_pass(git_futils_writebuffer(&c2, "renames/song_b.txt", 0, 0));
cl_git_pass(
git_revparse_single((git_object **)&tree, g_repo, "HEAD^{tree}"));
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(git_index_read_tree(index, tree));
cl_git_pass(git_index_add_bypath(index, "song_a.txt"));
cl_git_pass(git_index_add_bypath(index, "song_b.txt"));
diffopts.flags = GIT_DIFF_INCLUDE_UNMODIFIED;
cl_git_pass(git_diff_tree_to_index(&diff, g_repo, tree, index, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(6, exp.files);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_ADDED]);
cl_assert_equal_i(4, exp.file_status[GIT_DELTA_UNMODIFIED]);
opts.flags = GIT_DIFF_FIND_ALL;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(6, exp.files);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_COPIED]);
cl_assert_equal_i(4, exp.file_status[GIT_DELTA_UNMODIFIED]);
git_diff_free(diff);
git_tree_free(tree);
git_index_free(index);
git_buf_free(&c1);
git_buf_free(&c2);
}
void test_diff_rename__from_deleted_to_split(void)
{
git_buf c1 = GIT_BUF_INIT;
git_index *index;
git_tree *tree;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
diff_expects exp;
/* old file is missing, new file is actually old file renamed */
cl_git_pass(git_futils_readbuffer(&c1, "renames/songof7cities.txt"));
cl_git_pass(git_futils_writebuffer(&c1, "renames/untimely.txt", 0, 0));
cl_git_pass(
git_revparse_single((git_object **)&tree, g_repo, "HEAD^{tree}"));
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(git_index_read_tree(index, tree));
cl_git_pass(git_index_remove_bypath(index, "songof7cities.txt"));
cl_git_pass(git_index_add_bypath(index, "untimely.txt"));
diffopts.flags = GIT_DIFF_INCLUDE_UNMODIFIED;
cl_git_pass(git_diff_tree_to_index(&diff, g_repo, tree, index, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_UNMODIFIED]);
opts.flags = GIT_DIFF_FIND_ALL;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_RENAMED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_UNMODIFIED]);
git_diff_free(diff);
git_tree_free(tree);
git_index_free(index);
git_buf_free(&c1);
}
struct rename_expected
{
size_t len;
unsigned int *status;
const char **sources;
const char **targets;
size_t idx;
};
int test_names_expected(const git_diff_delta *delta, float progress, void *p)
{
struct rename_expected *expected = p;
GIT_UNUSED(progress);
cl_assert(expected->idx < expected->len);
cl_assert_equal_i(delta->status, expected->status[expected->idx]);
cl_assert(git__strcmp(expected->sources[expected->idx],
delta->old_file.path) == 0);
cl_assert(git__strcmp(expected->targets[expected->idx],
delta->new_file.path) == 0);
expected->idx++;
return 0;
}
void test_diff_rename__rejected_match_can_match_others(void)
{
git_reference *head, *selfsimilar;
git_index *index;
git_tree *tree;
git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options findopts = GIT_DIFF_FIND_OPTIONS_INIT;
git_buf one = GIT_BUF_INIT, two = GIT_BUF_INIT;
unsigned int status[] = { GIT_DELTA_RENAMED, GIT_DELTA_RENAMED };
const char *sources[] = { "Class1.cs", "Class2.cs" };
const char *targets[] = { "ClassA.cs", "ClassB.cs" };
struct rename_expected expect = { 2, status, sources, targets };
char *ptr;
opts.checkout_strategy = GIT_CHECKOUT_FORCE;
findopts.flags = GIT_DIFF_FIND_RENAMES;
cl_git_pass(git_reference_lookup(&head, g_repo, "HEAD"));
cl_git_pass(git_reference_symbolic_set_target(
&selfsimilar, head, "refs/heads/renames_similar", NULL));
cl_git_pass(git_checkout_head(g_repo, &opts));
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(git_futils_readbuffer(&one, "renames/Class1.cs"));
cl_git_pass(git_futils_readbuffer(&two, "renames/Class2.cs"));
cl_git_pass(p_unlink("renames/Class1.cs"));
cl_git_pass(p_unlink("renames/Class2.cs"));
cl_git_pass(git_index_remove_bypath(index, "Class1.cs"));
cl_git_pass(git_index_remove_bypath(index, "Class2.cs"));
cl_assert(ptr = strstr(one.ptr, "Class1"));
ptr[5] = 'A';
cl_assert(ptr = strstr(two.ptr, "Class2"));
ptr[5] = 'B';
cl_git_pass(
git_futils_writebuffer(&one, "renames/ClassA.cs", O_RDWR|O_CREAT, 0777));
cl_git_pass(
git_futils_writebuffer(&two, "renames/ClassB.cs", O_RDWR|O_CREAT, 0777));
cl_git_pass(git_index_add_bypath(index, "ClassA.cs"));
cl_git_pass(git_index_add_bypath(index, "ClassB.cs"));
cl_git_pass(git_index_write(index));
cl_git_pass(
git_revparse_single((git_object **)&tree, g_repo, "HEAD^{tree}"));
cl_git_pass(
git_diff_tree_to_index(&diff, g_repo, tree, index, &diffopts));
cl_git_pass(git_diff_find_similar(diff, &findopts));
cl_git_pass(git_diff_foreach(
diff, test_names_expected, NULL, NULL, NULL, &expect));
git_diff_free(diff);
git_tree_free(tree);
git_index_free(index);
git_reference_free(head);
git_reference_free(selfsimilar);
git_buf_free(&one);
git_buf_free(&two);
}
static void write_similarity_file_two(const char *filename, size_t b_lines)
{
git_buf contents = GIT_BUF_INIT;
size_t i;
for (i = 0; i < b_lines; i++)
git_buf_printf(&contents, "%02d - bbbbb\r\n", (int)(i+1));
for (i = b_lines; i < 50; i++)
git_buf_printf(&contents, "%02d - aaaaa%s", (int)(i+1), (i == 49 ? "" : "\r\n"));
cl_git_pass(
git_futils_writebuffer(&contents, filename, O_RDWR|O_CREAT, 0777));
git_buf_free(&contents);
}
void test_diff_rename__rejected_match_can_match_others_two(void)
{
git_reference *head, *selfsimilar;
git_index *index;
git_tree *tree;
git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options findopts = GIT_DIFF_FIND_OPTIONS_INIT;
unsigned int status[] = { GIT_DELTA_RENAMED, GIT_DELTA_RENAMED };
const char *sources[] = { "a.txt", "b.txt" };
const char *targets[] = { "c.txt", "d.txt" };
struct rename_expected expect = { 2, status, sources, targets };
opts.checkout_strategy = GIT_CHECKOUT_FORCE;
findopts.flags = GIT_DIFF_FIND_RENAMES;
cl_git_pass(git_reference_lookup(&head, g_repo, "HEAD"));
cl_git_pass(git_reference_symbolic_set_target(
&selfsimilar, head, "refs/heads/renames_similar_two", NULL));
cl_git_pass(git_checkout_head(g_repo, &opts));
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(p_unlink("renames/a.txt"));
cl_git_pass(p_unlink("renames/b.txt"));
cl_git_pass(git_index_remove_bypath(index, "a.txt"));
cl_git_pass(git_index_remove_bypath(index, "b.txt"));
write_similarity_file_two("renames/c.txt", 7);
write_similarity_file_two("renames/d.txt", 8);
cl_git_pass(git_index_add_bypath(index, "c.txt"));
cl_git_pass(git_index_add_bypath(index, "d.txt"));
cl_git_pass(git_index_write(index));
cl_git_pass(
git_revparse_single((git_object **)&tree, g_repo, "HEAD^{tree}"));
cl_git_pass(
git_diff_tree_to_index(&diff, g_repo, tree, index, &diffopts));
cl_git_pass(git_diff_find_similar(diff, &findopts));
cl_git_pass(git_diff_foreach(
diff, test_names_expected, NULL, NULL, NULL, &expect));
cl_assert(expect.idx > 0);
git_diff_free(diff);
git_tree_free(tree);
git_index_free(index);
git_reference_free(head);
git_reference_free(selfsimilar);
}
void test_diff_rename__rejected_match_can_match_others_three(void)
{
git_reference *head, *selfsimilar;
git_index *index;
git_tree *tree;
git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options findopts = GIT_DIFF_FIND_OPTIONS_INIT;
/* Both cannot be renames from a.txt */
unsigned int status[] = { GIT_DELTA_ADDED, GIT_DELTA_RENAMED };
const char *sources[] = { "0001.txt", "a.txt" };
const char *targets[] = { "0001.txt", "0002.txt" };
struct rename_expected expect = { 2, status, sources, targets };
opts.checkout_strategy = GIT_CHECKOUT_FORCE;
findopts.flags = GIT_DIFF_FIND_RENAMES;
cl_git_pass(git_reference_lookup(&head, g_repo, "HEAD"));
cl_git_pass(git_reference_symbolic_set_target(
&selfsimilar, head, "refs/heads/renames_similar_two", NULL));
cl_git_pass(git_checkout_head(g_repo, &opts));
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(p_unlink("renames/a.txt"));
cl_git_pass(git_index_remove_bypath(index, "a.txt"));
write_similarity_file_two("renames/0001.txt", 7);
write_similarity_file_two("renames/0002.txt", 0);
cl_git_pass(git_index_add_bypath(index, "0001.txt"));
cl_git_pass(git_index_add_bypath(index, "0002.txt"));
cl_git_pass(git_index_write(index));
cl_git_pass(
git_revparse_single((git_object **)&tree, g_repo, "HEAD^{tree}"));
cl_git_pass(
git_diff_tree_to_index(&diff, g_repo, tree, index, &diffopts));
cl_git_pass(git_diff_find_similar(diff, &findopts));
cl_git_pass(git_diff_foreach(
diff, test_names_expected, NULL, NULL, NULL, &expect));
cl_assert(expect.idx == expect.len);
git_diff_free(diff);
git_tree_free(tree);
git_index_free(index);
git_reference_free(head);
git_reference_free(selfsimilar);
}
void test_diff_rename__can_rename_from_rewrite(void)
{
git_index *index;
git_tree *tree;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options findopts = GIT_DIFF_FIND_OPTIONS_INIT;
unsigned int status[] = { GIT_DELTA_RENAMED, GIT_DELTA_RENAMED };
const char *sources[] = { "ikeepsix.txt", "songof7cities.txt" };
const char *targets[] = { "songof7cities.txt", "this-is-a-rename.txt" };
struct rename_expected expect = { 2, status, sources, targets };
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(p_rename("renames/songof7cities.txt", "renames/this-is-a-rename.txt"));
cl_git_pass(p_rename("renames/ikeepsix.txt", "renames/songof7cities.txt"));
cl_git_pass(git_index_remove_bypath(index, "ikeepsix.txt"));
cl_git_pass(git_index_add_bypath(index, "songof7cities.txt"));
cl_git_pass(git_index_add_bypath(index, "this-is-a-rename.txt"));
cl_git_pass(git_index_write(index));
cl_git_pass(
git_revparse_single((git_object **)&tree, g_repo, "HEAD^{tree}"));
cl_git_pass(
git_diff_tree_to_index(&diff, g_repo, tree, index, &diffopts));
findopts.flags |= GIT_DIFF_FIND_AND_BREAK_REWRITES |
GIT_DIFF_FIND_REWRITES |
GIT_DIFF_FIND_RENAMES_FROM_REWRITES;
cl_git_pass(git_diff_find_similar(diff, &findopts));
cl_git_pass(git_diff_foreach(
diff, test_names_expected, NULL, NULL, NULL, &expect));
cl_assert(expect.idx == expect.len);
git_diff_free(diff);
git_tree_free(tree);
git_index_free(index);
}
void test_diff_rename__case_changes_are_split(void)
{
git_index *index;
git_tree *tree;
git_diff *diff = NULL;
diff_expects exp;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(
git_revparse_single((git_object **)&tree, g_repo, "HEAD^{tree}"));
cl_git_pass(p_rename("renames/ikeepsix.txt", "renames/IKEEPSIX.txt"));
cl_git_pass(git_index_remove_bypath(index, "ikeepsix.txt"));
cl_git_pass(git_index_add_bypath(index, "IKEEPSIX.txt"));
cl_git_pass(git_index_write(index));
cl_git_pass(git_diff_tree_to_index(&diff, g_repo, tree, index, NULL));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(2, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_ADDED]);
opts.flags = GIT_DIFF_FIND_ALL;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(1, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_RENAMED]);
git_diff_free(diff);
git_index_free(index);
git_tree_free(tree);
}
void test_diff_rename__unmodified_can_be_renamed(void)
{
git_index *index;
git_tree *tree;
git_diff *diff = NULL;
diff_expects exp;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(
git_revparse_single((git_object **)&tree, g_repo, "HEAD^{tree}"));
cl_git_pass(p_rename("renames/ikeepsix.txt", "renames/ikeepsix2.txt"));
cl_git_pass(git_index_remove_bypath(index, "ikeepsix.txt"));
cl_git_pass(git_index_add_bypath(index, "ikeepsix2.txt"));
cl_git_pass(git_index_write(index));
cl_git_pass(git_diff_tree_to_index(&diff, g_repo, tree, index, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(2, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_ADDED]);
opts.flags = GIT_DIFF_FIND_ALL;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(1, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_RENAMED]);
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(1, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_RENAMED]);
git_diff_free(diff);
git_index_free(index);
git_tree_free(tree);
}
void test_diff_rename__rewrite_on_single_file(void)
{
git_index *index;
git_diff *diff = NULL;
diff_expects exp;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options findopts = GIT_DIFF_FIND_OPTIONS_INIT;
diffopts.flags = GIT_DIFF_INCLUDE_UNTRACKED;
findopts.flags = GIT_DIFF_FIND_FOR_UNTRACKED |
GIT_DIFF_FIND_AND_BREAK_REWRITES |
GIT_DIFF_FIND_RENAMES_FROM_REWRITES;
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_rewritefile("renames/ikeepsix.txt",
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n" \
"This is enough content for the file to be rewritten.\n");
cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, index, &diffopts));
cl_git_pass(git_diff_find_similar(diff, &findopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(2, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNTRACKED]);
git_diff_free(diff);
git_index_free(index);
}
void test_diff_rename__can_find_copy_to_split(void)
{
git_buf c1 = GIT_BUF_INIT;
git_index *index;
git_tree *tree;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
diff_expects exp;
cl_git_pass(git_futils_readbuffer(&c1, "renames/songof7cities.txt"));
cl_git_pass(git_futils_writebuffer(&c1, "renames/untimely.txt", 0, 0));
cl_git_pass(
git_revparse_single((git_object **)&tree, g_repo, "HEAD^{tree}"));
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(git_index_read_tree(index, tree));
cl_git_pass(git_index_add_bypath(index, "untimely.txt"));
diffopts.flags = GIT_DIFF_INCLUDE_UNMODIFIED;
cl_git_pass(git_diff_tree_to_index(&diff, g_repo, tree, index, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(3, exp.file_status[GIT_DELTA_UNMODIFIED]);
opts.flags = GIT_DIFF_FIND_ALL;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(5, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_COPIED]);
cl_assert_equal_i(3, exp.file_status[GIT_DELTA_UNMODIFIED]);
git_diff_free(diff);
git_tree_free(tree);
git_index_free(index);
git_buf_free(&c1);
}
void test_diff_rename__can_delete_unmodified_deltas(void)
{
git_buf c1 = GIT_BUF_INIT;
git_index *index;
git_tree *tree;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
diff_expects exp;
cl_git_pass(git_futils_readbuffer(&c1, "renames/songof7cities.txt"));
cl_git_pass(git_futils_writebuffer(&c1, "renames/untimely.txt", 0, 0));
cl_git_pass(
git_revparse_single((git_object **)&tree, g_repo, "HEAD^{tree}"));
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(git_index_read_tree(index, tree));
cl_git_pass(git_index_add_bypath(index, "untimely.txt"));
diffopts.flags = GIT_DIFF_INCLUDE_UNMODIFIED;
cl_git_pass(git_diff_tree_to_index(&diff, g_repo, tree, index, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(3, exp.file_status[GIT_DELTA_UNMODIFIED]);
opts.flags = GIT_DIFF_FIND_ALL | GIT_DIFF_FIND_REMOVE_UNMODIFIED;
cl_git_pass(git_diff_find_similar(diff, &opts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(2, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_COPIED]);
git_diff_free(diff);
git_tree_free(tree);
git_index_free(index);
git_buf_free(&c1);
}
void test_diff_rename__matches_config_behavior(void)
{
const char *sha0 = "31e47d8c1fa36d7f8d537b96158e3f024de0a9f2";
const char *sha1 = "2bc7f351d20b53f1c72c16c4b036e491c478c49a";
const char *sha2 = "1c068dee5790ef1580cfc4cd670915b48d790084";
git_tree *tree0, *tree1, *tree2;
git_config *cfg;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
diff_expects exp;
opts.flags = GIT_DIFF_FIND_BY_CONFIG;
tree0 = resolve_commit_oid_to_tree(g_repo, sha0);
tree1 = resolve_commit_oid_to_tree(g_repo, sha1);
tree2 = resolve_commit_oid_to_tree(g_repo, sha2);
diffopts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
cl_git_pass(git_repository_config(&cfg, g_repo));
/* diff.renames = false; no rename detection should happen */
cl_git_pass(git_config_set_bool(cfg, "diff.renames", false));
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, tree0, tree1, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_find_similar(diff, &opts));
cl_git_pass(git_diff_foreach(diff,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_ADDED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
git_diff_free(diff);
/* diff.renames = true; should act like -M */
cl_git_pass(git_config_set_bool(cfg, "diff.renames", true));
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, tree0, tree1, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_find_similar(diff, &opts));
cl_git_pass(git_diff_foreach(diff,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(3, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_ADDED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_RENAMED]);
git_diff_free(diff);
/* diff.renames = copies; should act like -M -C */
cl_git_pass(git_config_set_string(cfg, "diff.renames", "copies"));
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, tree1, tree2, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_find_similar(diff, &opts));
cl_git_pass(git_diff_foreach(diff,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_COPIED]);
git_diff_free(diff);
/* NULL find options is the same as GIT_DIFF_FIND_BY_CONFIG */
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, tree1, tree2, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_find_similar(diff, NULL));
cl_git_pass(git_diff_foreach(diff,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_COPIED]);
git_diff_free(diff);
/* Cleanup */
git_tree_free(tree0);
git_tree_free(tree1);
git_tree_free(tree2);
git_config_free(cfg);
}
void test_diff_rename__can_override_thresholds_when_obeying_config(void)
{
const char *sha1 = "2bc7f351d20b53f1c72c16c4b036e491c478c49a";
const char *sha2 = "1c068dee5790ef1580cfc4cd670915b48d790084";
git_tree *tree1, *tree2;
git_config *cfg;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
diff_expects exp;
tree1 = resolve_commit_oid_to_tree(g_repo, sha1);
tree2 = resolve_commit_oid_to_tree(g_repo, sha2);
diffopts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
opts.flags = GIT_DIFF_FIND_BY_CONFIG;
cl_git_pass(git_repository_config(&cfg, g_repo));
cl_git_pass(git_config_set_string(cfg, "diff.renames", "copies"));
git_config_free(cfg);
/* copy threshold = 96%, should see creation of ikeepsix.txt */
opts.copy_threshold = 96;
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, tree1, tree2, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_find_similar(diff, &opts));
cl_git_pass(git_diff_foreach(diff,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_ADDED]);
git_diff_free(diff);
/* copy threshold = 20%, should see sixserving.txt => ikeepsix.txt */
opts.copy_threshold = 20;
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, tree1, tree2, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_find_similar(diff, &opts));
cl_git_pass(git_diff_foreach(diff,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(4, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNMODIFIED]);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_COPIED]);
git_diff_free(diff);
/* Cleanup */
git_tree_free(tree1);
git_tree_free(tree2);
}
void test_diff_rename__by_config_doesnt_mess_with_whitespace_settings(void)
{
const char *sha1 = "1c068dee5790ef1580cfc4cd670915b48d790084";
const char *sha2 = "19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13";
git_tree *tree1, *tree2;
git_config *cfg;
git_diff *diff;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
diff_expects exp;
tree1 = resolve_commit_oid_to_tree(g_repo, sha1);
tree2 = resolve_commit_oid_to_tree(g_repo, sha2);
diffopts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
opts.flags = GIT_DIFF_FIND_BY_CONFIG;
cl_git_pass(git_repository_config(&cfg, g_repo));
cl_git_pass(git_config_set_string(cfg, "diff.renames", "copies"));
git_config_free(cfg);
/* Don't ignore whitespace; this should find a change in sixserving.txt */
opts.flags |= 0 | GIT_DIFF_FIND_DONT_IGNORE_WHITESPACE;
cl_git_pass(git_diff_tree_to_tree(
&diff, g_repo, tree1, tree2, &diffopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_find_similar(diff, &opts));
cl_git_pass(git_diff_foreach(diff,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(5, exp.files);
cl_assert_equal_i(2, exp.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_RENAMED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_ADDED]);
git_diff_free(diff);
/* Cleanup */
git_tree_free(tree1);
git_tree_free(tree2);
}
static void expect_files_renamed(const char *one, const char *two, uint32_t whitespace_flags)
{
git_index *index;
git_diff *diff = NULL;
diff_expects exp;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options findopts = GIT_DIFF_FIND_OPTIONS_INIT;
diffopts.flags = GIT_DIFF_INCLUDE_UNTRACKED;
findopts.flags = GIT_DIFF_FIND_FOR_UNTRACKED |
GIT_DIFF_FIND_AND_BREAK_REWRITES |
GIT_DIFF_FIND_RENAMES_FROM_REWRITES |
whitespace_flags;
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_rewritefile("renames/ikeepsix.txt", one);
cl_git_pass(git_index_add_bypath(index, "ikeepsix.txt"));
cl_git_rmfile("renames/ikeepsix.txt");
cl_git_rewritefile("renames/ikeepsix2.txt", two);
cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, index, &diffopts));
cl_git_pass(git_diff_find_similar(diff, &findopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(1, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_RENAMED]);
git_diff_free(diff);
git_index_free(index);
}
/* test some variations on empty and blank files */
void test_diff_rename__empty_files_renamed(void)
{
/* empty files are identical when ignoring whitespace or not */
expect_files_renamed("", "", GIT_DIFF_FIND_DONT_IGNORE_WHITESPACE);
expect_files_renamed("", "", GIT_DIFF_FIND_IGNORE_WHITESPACE);
}
/* test that blank files are similar when ignoring whitespace */
void test_diff_rename__blank_files_renamed_when_ignoring_whitespace(void)
{
expect_files_renamed("", "\n\n", GIT_DIFF_FIND_IGNORE_WHITESPACE);
expect_files_renamed("", "\r\n\r\n", GIT_DIFF_FIND_IGNORE_WHITESPACE);
expect_files_renamed("\r\n\r\n", "\n\n\n", GIT_DIFF_FIND_IGNORE_WHITESPACE);
expect_files_renamed(" ", "\n\n", GIT_DIFF_FIND_IGNORE_WHITESPACE);
expect_files_renamed(" \n \n", "\n\n", GIT_DIFF_FIND_IGNORE_WHITESPACE);
}
/* blank files are not similar when whitespace is not ignored */
static void expect_files_not_renamed(const char *one, const char *two, uint32_t whitespace_flags)
{
git_index *index;
git_diff *diff = NULL;
diff_expects exp;
git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options findopts = GIT_DIFF_FIND_OPTIONS_INIT;
diffopts.flags = GIT_DIFF_INCLUDE_UNTRACKED;
findopts.flags = GIT_DIFF_FIND_FOR_UNTRACKED |
whitespace_flags;
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_rewritefile("renames/ikeepsix.txt", one);
cl_git_pass(git_index_add_bypath(index, "ikeepsix.txt"));
cl_git_rmfile("renames/ikeepsix.txt");
cl_git_rewritefile("renames/ikeepsix2.txt", two);
cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, index, &diffopts));
cl_git_pass(git_diff_find_similar(diff, &findopts));
memset(&exp, 0, sizeof(exp));
cl_git_pass(git_diff_foreach(
diff, diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &exp));
cl_assert_equal_i(2, exp.files);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(1, exp.file_status[GIT_DELTA_UNTRACKED]);
git_diff_free(diff);
git_index_free(index);
}
/* test that blank files are similar when ignoring renames */
void test_diff_rename__blank_files_not_renamed_when_not_ignoring_whitespace(void)
{
expect_files_not_renamed("", "\r\n\r\n\r\n", GIT_DIFF_FIND_DONT_IGNORE_WHITESPACE);
expect_files_not_renamed("", "\n\n\n\n", GIT_DIFF_FIND_DONT_IGNORE_WHITESPACE);
expect_files_not_renamed("\n\n\n\n", "\r\n\r\n\r\n", GIT_DIFF_FIND_DONT_IGNORE_WHITESPACE);
}
/* test that 100% renames and copies emit the correct patch file
* git diff --find-copies-harder -M100 -B100 \
* 31e47d8c1fa36d7f8d537b96158e3f024de0a9f2 \
* 2bc7f351d20b53f1c72c16c4b036e491c478c49a
*/
void test_diff_rename__identical(void)
{
const char *old_sha = "31e47d8c1fa36d7f8d537b96158e3f024de0a9f2";
const char *new_sha = "2bc7f351d20b53f1c72c16c4b036e491c478c49a";
git_tree *old_tree, *new_tree;
git_diff *diff;
git_diff_options diff_opts = GIT_DIFF_OPTIONS_INIT;
git_diff_find_options find_opts = GIT_DIFF_FIND_OPTIONS_INIT;
git_buf diff_buf = GIT_BUF_INIT;
const char *expected =
"diff --git a/serving.txt b/sixserving.txt\n"
"similarity index 100%\n"
"rename from serving.txt\n"
"rename to sixserving.txt\n"
"diff --git a/sevencities.txt b/songofseven.txt\n"
"similarity index 100%\n"
"copy from sevencities.txt\n"
"copy to songofseven.txt\n";
old_tree = resolve_commit_oid_to_tree(g_repo, old_sha);
new_tree = resolve_commit_oid_to_tree(g_repo, new_sha);
diff_opts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
find_opts.flags = GIT_DIFF_FIND_COPIES_FROM_UNMODIFIED |
GIT_DIFF_FIND_EXACT_MATCH_ONLY;
cl_git_pass(git_diff_tree_to_tree(&diff,
g_repo, old_tree, new_tree, &diff_opts));
cl_git_pass(git_diff_find_similar(diff, &find_opts));
cl_git_pass(git_diff_to_buf(&diff_buf, diff, GIT_DIFF_FORMAT_PATCH));
cl_assert_equal_s(expected, diff_buf.ptr);
git_buf_free(&diff_buf);
git_diff_free(diff);
git_tree_free(old_tree);
git_tree_free(new_tree);
}