diff options
21 files changed, 299 insertions, 13 deletions
diff --git a/src/diff_output.c b/src/diff_output.c index ea40c3355..50e3cc1de 100644 --- a/src/diff_output.c +++ b/src/diff_output.c @@ -1204,13 +1204,17 @@ static int diffiter_hunk_cb( if (info->last_hunk) info->last_hunk->next = hunk; info->last_hunk = hunk; + info->last_line = NULL; memcpy(&hunk->range, range, sizeof(hunk->range)); iter->hunk_count++; - if (iter->hunk_head == NULL) - iter->hunk_curr = iter->hunk_head = hunk; + /* adding first hunk to list */ + if (iter->hunk_head == NULL) { + iter->hunk_head = hunk; + iter->hunk_curr = NULL; + } return 0; } @@ -1345,9 +1349,14 @@ int git_diff_iterator_num_hunks_in_file(git_diff_iterator *iter) int git_diff_iterator_num_lines_in_hunk(git_diff_iterator *iter) { int error = diffiter_do_diff_file(iter); - if (!error && iter->hunk_curr) - error = iter->hunk_curr->line_count; - return error; + if (error) + return error; + + if (iter->hunk_curr) + return iter->hunk_curr->line_count; + if (iter->hunk_head) + return iter->hunk_head->line_count; + return 0; } int git_diff_iterator_next_file( @@ -1386,7 +1395,7 @@ int git_diff_iterator_next_file( } if (iter->ctxt.delta == NULL) { - iter->hunk_curr = NULL; + iter->hunk_curr = iter->hunk_head = NULL; iter->line_curr = NULL; } @@ -1409,11 +1418,13 @@ int git_diff_iterator_next_hunk( return error; if (iter->hunk_curr == NULL) { - if (range_ptr) *range_ptr = NULL; - if (header) *header = NULL; - if (header_len) *header_len = 0; - iter->line_curr = NULL; - return GIT_ITEROVER; + if (iter->hunk_head == NULL) + goto no_more_hunks; + iter->hunk_curr = iter->hunk_head; + } else { + if (iter->hunk_curr->next == NULL) + goto no_more_hunks; + iter->hunk_curr = iter->hunk_curr->next; } range = &iter->hunk_curr->range; @@ -1436,9 +1447,16 @@ int git_diff_iterator_next_hunk( } iter->line_curr = iter->hunk_curr->line_head; - iter->hunk_curr = iter->hunk_curr->next; return error; + +no_more_hunks: + if (range_ptr) *range_ptr = NULL; + if (header) *header = NULL; + if (header_len) *header_len = 0; + iter->line_curr = NULL; + + return GIT_ITEROVER; } int git_diff_iterator_next_line( @@ -1453,7 +1471,7 @@ int git_diff_iterator_next_line( return error; /* if the user has not called next_hunk yet, call it implicitly (OK?) */ - if (iter->hunk_curr == iter->hunk_head) { + if (iter->hunk_curr == NULL) { error = git_diff_iterator_next_hunk(NULL, NULL, NULL, iter); if (error) return error; diff --git a/tests-clar/diff/tree.c b/tests-clar/diff/tree.c index 3003374a5..f5e72cadc 100644 --- a/tests-clar/diff/tree.c +++ b/tests-clar/diff/tree.c @@ -256,3 +256,85 @@ void test_diff_tree__merge(void) git_diff_list_free(diff1); } + +void test_diff_tree__larger_hunks(void) +{ + const char *a_commit = "d70d245ed97ed2aa596dd1af6536e4bfdb047b69"; + const char *b_commit = "7a9e0b02e63179929fed24f0a3e0f19168114d10"; + git_tree *a, *b; + git_diff_options opts = {0}; + git_diff_list *diff = NULL; + git_diff_iterator *iter = NULL; + git_diff_delta *delta; + diff_expects exp; + int error, num_files = 0; + + g_repo = cl_git_sandbox_init("diff"); + + cl_assert((a = resolve_commit_oid_to_tree(g_repo, a_commit)) != NULL); + cl_assert((b = resolve_commit_oid_to_tree(g_repo, b_commit)) != NULL); + + opts.context_lines = 1; + opts.interhunk_lines = 0; + + memset(&exp, 0, sizeof(exp)); + + cl_git_pass(git_diff_tree_to_tree(g_repo, &opts, a, b, &diff)); + cl_git_pass(git_diff_iterator_new(&iter, diff)); + + /* this should be exact */ + cl_assert(git_diff_iterator_progress(iter) == 0.0f); + + /* You wouldn't actually structure an iterator loop this way, but + * I have here for testing purposes of the return value + */ + while (!(error = git_diff_iterator_next_file(&delta, iter))) { + git_diff_range *range; + const char *header; + size_t header_len; + int actual_hunks = 0, num_hunks; + float expected_progress; + + num_files++; + + expected_progress = (float)num_files / 2.0f; + cl_assert(expected_progress == git_diff_iterator_progress(iter)); + + num_hunks = git_diff_iterator_num_hunks_in_file(iter); + + while (!(error = git_diff_iterator_next_hunk( + &range, &header, &header_len, iter))) + { + int actual_lines = 0; + int num_lines = git_diff_iterator_num_lines_in_hunk(iter); + char origin; + const char *line; + size_t line_len; + + while (!(error = git_diff_iterator_next_line( + &origin, &line, &line_len, iter))) + { + actual_lines++; + } + + cl_assert_equal_i(GIT_ITEROVER, error); + cl_assert_equal_i(actual_lines, num_lines); + + actual_hunks++; + } + + cl_assert_equal_i(GIT_ITEROVER, error); + cl_assert_equal_i(actual_hunks, num_hunks); + } + + cl_assert_equal_i(GIT_ITEROVER, error); + cl_assert_equal_i(2, num_files); + cl_assert(git_diff_iterator_progress(iter) == 1.0f); + + git_diff_iterator_free(iter); + git_diff_list_free(diff); + diff = NULL; + + git_tree_free(a); + git_tree_free(b); +} diff --git a/tests-clar/diff/workdir.c b/tests-clar/diff/workdir.c index eac7eb87d..40a888544 100644 --- a/tests-clar/diff/workdir.c +++ b/tests-clar/diff/workdir.c @@ -670,3 +670,94 @@ void test_diff_workdir__eof_newline_changes(void) * * Expect 13 files, 0 ADD, 4 DEL, 4 MOD, 1 IGN, 4 UNTR */ + + +void test_diff_workdir__larger_hunks(void) +{ + const char *a_commit = "d70d245ed97ed2aa596dd1af6536e4bfdb047b69"; + const char *b_commit = "7a9e0b02e63179929fed24f0a3e0f19168114d10"; + git_tree *a, *b; + git_diff_options opts = {0}; + int i, error; + + g_repo = cl_git_sandbox_init("diff"); + + cl_assert((a = resolve_commit_oid_to_tree(g_repo, a_commit)) != NULL); + cl_assert((b = resolve_commit_oid_to_tree(g_repo, b_commit)) != NULL); + + opts.context_lines = 1; + opts.interhunk_lines = 0; + + for (i = 0; i <= 2; ++i) { + git_diff_list *diff = NULL; + git_diff_iterator *iter = NULL; + git_diff_delta *delta; + int num_files = 0; + + /* okay, this is a bit silly, but oh well */ + switch (i) { + case 0: + cl_git_pass(git_diff_workdir_to_index(g_repo, &opts, &diff)); + break; + case 1: + cl_git_pass(git_diff_workdir_to_tree(g_repo, &opts, a, &diff)); + break; + case 2: + cl_git_pass(git_diff_workdir_to_tree(g_repo, &opts, b, &diff)); + break; + } + + cl_git_pass(git_diff_iterator_new(&iter, diff)); + + cl_assert(git_diff_iterator_progress(iter) == 0.0f); + + while (!(error = git_diff_iterator_next_file(&delta, iter))) { + git_diff_range *range; + const char *header; + size_t header_len; + int actual_hunks = 0, num_hunks; + float expected_progress; + + num_files++; + + expected_progress = (float)num_files / 2.0f; + cl_assert(expected_progress == git_diff_iterator_progress(iter)); + + num_hunks = git_diff_iterator_num_hunks_in_file(iter); + + while (!(error = git_diff_iterator_next_hunk( + &range, &header, &header_len, iter))) + { + int actual_lines = 0; + int num_lines = git_diff_iterator_num_lines_in_hunk(iter); + char origin; + const char *line; + size_t line_len; + + while (!(error = git_diff_iterator_next_line( + &origin, &line, &line_len, iter))) + { + actual_lines++; + } + + cl_assert_equal_i(GIT_ITEROVER, error); + cl_assert_equal_i(actual_lines, num_lines); + + actual_hunks++; + } + + cl_assert_equal_i(GIT_ITEROVER, error); + cl_assert_equal_i(actual_hunks, num_hunks); + } + + cl_assert_equal_i(GIT_ITEROVER, error); + cl_assert_equal_i(2, num_files); + cl_assert(git_diff_iterator_progress(iter) == 1.0f); + + git_diff_iterator_free(iter); + git_diff_list_free(diff); + } + + git_tree_free(a); + git_tree_free(b); +} diff --git a/tests-clar/resources/diff/.gitted/HEAD b/tests-clar/resources/diff/.gitted/HEAD new file mode 100644 index 000000000..cb089cd89 --- /dev/null +++ b/tests-clar/resources/diff/.gitted/HEAD @@ -0,0 +1 @@ +ref: refs/heads/master diff --git a/tests-clar/resources/diff/.gitted/config b/tests-clar/resources/diff/.gitted/config new file mode 100644 index 000000000..77a27ef1d --- /dev/null +++ b/tests-clar/resources/diff/.gitted/config @@ -0,0 +1,6 @@ +[core] + repositoryformatversion = 0 + filemode = true + bare = false + logallrefupdates = true + ignorecase = false diff --git a/tests-clar/resources/diff/.gitted/description b/tests-clar/resources/diff/.gitted/description new file mode 100644 index 000000000..498b267a8 --- /dev/null +++ b/tests-clar/resources/diff/.gitted/description @@ -0,0 +1 @@ +Unnamed repository; edit this file 'description' to name the repository. diff --git a/tests-clar/resources/diff/.gitted/index b/tests-clar/resources/diff/.gitted/index Binary files differnew file mode 100644 index 000000000..e1071874e --- /dev/null +++ b/tests-clar/resources/diff/.gitted/index diff --git a/tests-clar/resources/diff/.gitted/info/exclude b/tests-clar/resources/diff/.gitted/info/exclude new file mode 100644 index 000000000..a5196d1be --- /dev/null +++ b/tests-clar/resources/diff/.gitted/info/exclude @@ -0,0 +1,6 @@ +# git ls-files --others --exclude-from=.git/info/exclude +# Lines that start with '#' are comments. +# For a project mostly in C, the following would be a good set of +# exclude patterns (uncomment them if you want to use them): +# *.[oa] +# *~ diff --git a/tests-clar/resources/diff/.gitted/logs/HEAD b/tests-clar/resources/diff/.gitted/logs/HEAD new file mode 100644 index 000000000..8c6f6fd18 --- /dev/null +++ b/tests-clar/resources/diff/.gitted/logs/HEAD @@ -0,0 +1,2 @@ +0000000000000000000000000000000000000000 d70d245ed97ed2aa596dd1af6536e4bfdb047b69 Russell Belfer <rb@github.com> 1347559804 -0700 commit (initial): initial commit +d70d245ed97ed2aa596dd1af6536e4bfdb047b69 7a9e0b02e63179929fed24f0a3e0f19168114d10 Russell Belfer <rb@github.com> 1347560491 -0700 commit: some changes diff --git a/tests-clar/resources/diff/.gitted/logs/refs/heads/master b/tests-clar/resources/diff/.gitted/logs/refs/heads/master new file mode 100644 index 000000000..8c6f6fd18 --- /dev/null +++ b/tests-clar/resources/diff/.gitted/logs/refs/heads/master @@ -0,0 +1,2 @@ +0000000000000000000000000000000000000000 d70d245ed97ed2aa596dd1af6536e4bfdb047b69 Russell Belfer <rb@github.com> 1347559804 -0700 commit (initial): initial commit +d70d245ed97ed2aa596dd1af6536e4bfdb047b69 7a9e0b02e63179929fed24f0a3e0f19168114d10 Russell Belfer <rb@github.com> 1347560491 -0700 commit: some changes diff --git a/tests-clar/resources/diff/.gitted/objects/29/ab7053bb4dde0298e03e2c179e890b7dd465a7 b/tests-clar/resources/diff/.gitted/objects/29/ab7053bb4dde0298e03e2c179e890b7dd465a7 Binary files differnew file mode 100644 index 000000000..94f9a676d --- /dev/null +++ b/tests-clar/resources/diff/.gitted/objects/29/ab7053bb4dde0298e03e2c179e890b7dd465a7 diff --git a/tests-clar/resources/diff/.gitted/objects/3e/5bcbad2a68e5bc60a53b8388eea53a1a7ab847 b/tests-clar/resources/diff/.gitted/objects/3e/5bcbad2a68e5bc60a53b8388eea53a1a7ab847 Binary files differnew file mode 100644 index 000000000..9fed523dc --- /dev/null +++ b/tests-clar/resources/diff/.gitted/objects/3e/5bcbad2a68e5bc60a53b8388eea53a1a7ab847 diff --git a/tests-clar/resources/diff/.gitted/objects/54/6c735f16a3b44d9784075c2c0dab2ac9bf1989 b/tests-clar/resources/diff/.gitted/objects/54/6c735f16a3b44d9784075c2c0dab2ac9bf1989 Binary files differnew file mode 100644 index 000000000..d7df4d6a1 --- /dev/null +++ b/tests-clar/resources/diff/.gitted/objects/54/6c735f16a3b44d9784075c2c0dab2ac9bf1989 diff --git a/tests-clar/resources/diff/.gitted/objects/7a/9e0b02e63179929fed24f0a3e0f19168114d10 b/tests-clar/resources/diff/.gitted/objects/7a/9e0b02e63179929fed24f0a3e0f19168114d10 Binary files differnew file mode 100644 index 000000000..9bc25eb34 --- /dev/null +++ b/tests-clar/resources/diff/.gitted/objects/7a/9e0b02e63179929fed24f0a3e0f19168114d10 diff --git a/tests-clar/resources/diff/.gitted/objects/7b/808f723a8ca90df319682c221187235af76693 b/tests-clar/resources/diff/.gitted/objects/7b/808f723a8ca90df319682c221187235af76693 Binary files differnew file mode 100644 index 000000000..2fd266be6 --- /dev/null +++ b/tests-clar/resources/diff/.gitted/objects/7b/808f723a8ca90df319682c221187235af76693 diff --git a/tests-clar/resources/diff/.gitted/objects/88/789109439c1e1c3cd45224001edee5304ed53c b/tests-clar/resources/diff/.gitted/objects/88/789109439c1e1c3cd45224001edee5304ed53c new file mode 100644 index 000000000..7598b5914 --- /dev/null +++ b/tests-clar/resources/diff/.gitted/objects/88/789109439c1e1c3cd45224001edee5304ed53c @@ -0,0 +1 @@ +x+)JMU07g040031QH/H-+(a)[wz {j%;ʊRSrS4W4そN+ a
\ No newline at end of file diff --git a/tests-clar/resources/diff/.gitted/objects/cb/8294e696339863df760b2ff5d1e275bee72455 b/tests-clar/resources/diff/.gitted/objects/cb/8294e696339863df760b2ff5d1e275bee72455 Binary files differnew file mode 100644 index 000000000..86ebe04fe --- /dev/null +++ b/tests-clar/resources/diff/.gitted/objects/cb/8294e696339863df760b2ff5d1e275bee72455 diff --git a/tests-clar/resources/diff/.gitted/objects/d7/0d245ed97ed2aa596dd1af6536e4bfdb047b69 b/tests-clar/resources/diff/.gitted/objects/d7/0d245ed97ed2aa596dd1af6536e4bfdb047b69 new file mode 100644 index 000000000..99304c4aa --- /dev/null +++ b/tests-clar/resources/diff/.gitted/objects/d7/0d245ed97ed2aa596dd1af6536e4bfdb047b69 @@ -0,0 +1 @@ +x !m_RB:XkVpWp 9{ ,^z#7JygԚA i1Y2VyR)𢒨'm[;-lO_#%v8
\ No newline at end of file diff --git a/tests-clar/resources/diff/.gitted/refs/heads/master b/tests-clar/resources/diff/.gitted/refs/heads/master new file mode 100644 index 000000000..a83afc38b --- /dev/null +++ b/tests-clar/resources/diff/.gitted/refs/heads/master @@ -0,0 +1 @@ +7a9e0b02e63179929fed24f0a3e0f19168114d10 diff --git a/tests-clar/resources/diff/another.txt b/tests-clar/resources/diff/another.txt new file mode 100644 index 000000000..d0e0bae4d --- /dev/null +++ b/tests-clar/resources/diff/another.txt @@ -0,0 +1,38 @@ +Git is fast. With Git, nearly all operations are performed locally, giving +it an huge speed advantage on centralized systems that constantly have to +communicate with a server somewh3r3. + +For testing, large AWS instances were set up in the same availability +zone. Git and SVN were installed on both machines, the Ruby repository was +copied to both Git and SVN servers, and common operations were performed on +both. + +In some cases the commands don't match up exactly. Here, matching on the +lowest common denominator was attempted. For example, the 'commit' tests +also include the time to push for Git, though most of the time you would not +actually be pushing to the server immediately after a commit where the two +commands cannot be separated in SVN. + +Note that this is the best case scenario for SVN - a server with no load +with an 80MB/s bandwidth connection to the client machine. Nearly all of +these times would be even worse for SVN if that connection was slower, while +many of the Git times would not be affected. + +Clearly, in many of these common version control operations, Git is one or +two orders of magnitude faster than SVN, even under ideal conditions for +SVN. + +Let's see how common operations stack up against Subversion, a common +centralized version control system that is similar to CVS or +Perforce. Smaller is faster. + +One place where Git is slower is in the initial clone operation. Here, Git +One place where Git is slower is in the initial clone operation. Here, Git +One place where Git is slower is in the initial clone operation. Here, Git +seen in the above charts, it's not considerably slower for an operation that +is only performed once. + +It's also interesting to note that the size of the data on the client side +is very similar even though Git also has every version of every file for the +entire history of the project. This illustrates how efficient it is at +compressing and storing data on the client side.
\ No newline at end of file diff --git a/tests-clar/resources/diff/readme.txt b/tests-clar/resources/diff/readme.txt new file mode 100644 index 000000000..beedf288d --- /dev/null +++ b/tests-clar/resources/diff/readme.txt @@ -0,0 +1,36 @@ +The Git feature that r3ally mak3s it stand apart from n3arly 3v3ry other SCM +out there is its branching model. + +Git allows and encourages you to have multiple local branches that can be +entirely independent of each other. The creation, merging, and deletion of +those lines of development takes seconds. + +Git allows and encourages you to have multiple local branches that can be +entirely independent of each other. The creation, merging, and deletion of +those lines of development takes seconds. + +This means that you can do things like: + +Role-Bas3d Codelin3s. Have a branch that always contains only what goes to +production, another that you merge work into for testing, and several +smaller ones for day to day work. + +Feature Based Workflow. Create new branches for each new feature you're +working on so you can seamlessly switch back and forth between them, then +delete each branch when that feature gets merged into your main line. + +Disposable Experimentation. Create a branch to experiment in, realize it's +not going to work, and just delete it - abandoning the work—with nobody else +ever seeing it (even if you've pushed other branches in the meantime). + +Notably, when you push to a remote repository, you do not have to push all +share it with others. + +Git allows and encourages you to have multiple local branches that can be +entirely independent of each other. The creation, merging, and deletion of +those lines of development takes seconds. + +There are ways to accomplish some of this with other systems, but the work +involved is much more difficult and error-prone. Git makes this process +incredibly easy and it changes the way most developers work when they learn +it.! |