/*
* call-seq:
* patch.delta -> delta
*
* Returns the delta object associated with the patch.
*/
static VALUE rb_git_diff_patch_delta(VALUE self)
{
git_patch *patch;
Data_Get_Struct(self, git_patch, patch);
return rugged_diff_delta_new(rugged_owner(self), git_patch_get_delta(patch));
}
/**
* ggit_patch_get_delta:
* @patch: a #GgitPatch.
*
* Get the diff delta corresponding to the patch.
*
* Returns: (transfer full): the #GgitDiffDelta of the patch.
*/
GgitDiffDelta *
ggit_patch_get_delta (GgitPatch *patch)
{
g_return_val_if_fail (patch != NULL, NULL);
return _ggit_diff_delta_wrap (git_patch_get_delta (patch->patch));
}
static void assert_patch_matches_blobs(
git_patch *p, git_blob *a, git_blob *b,
int hunks, int l0, int l1, int ctxt, int adds, int dels)
{
const git_diff_delta *delta;
size_t tc, ta, td;
cl_assert(p != NULL);
delta = git_patch_get_delta(p);
cl_assert(delta != NULL);
cl_assert_equal_i(GIT_DELTA_MODIFIED, delta->status);
cl_assert_equal_oid(git_blob_id(a), &delta->old_file.id);
cl_assert_equal_sz(git_blob_rawsize(a), delta->old_file.size);
cl_assert_equal_oid(git_blob_id(b), &delta->new_file.id);
cl_assert_equal_sz(git_blob_rawsize(b), delta->new_file.size);
cl_assert_equal_i(hunks, (int)git_patch_num_hunks(p));
if (hunks > 0)
cl_assert_equal_i(l0, git_patch_num_lines_in_hunk(p, 0));
if (hunks > 1)
cl_assert_equal_i(l1, git_patch_num_lines_in_hunk(p, 1));
cl_git_pass(git_patch_line_stats(&tc, &ta, &td, p));
cl_assert_equal_i(ctxt, (int)tc);
cl_assert_equal_i(adds, (int)ta);
cl_assert_equal_i(dels, (int)td);
}
void test_diff_blob__can_compare_identical_blobs_with_patch(void)
{
git_patch *p;
const git_diff_delta *delta;
cl_git_pass(git_patch_from_blobs(&p, d, NULL, d, NULL, &opts));
cl_assert(p != NULL);
delta = git_patch_get_delta(p);
cl_assert(delta != NULL);
cl_assert_equal_i(GIT_DELTA_UNMODIFIED, delta->status);
cl_assert_equal_sz(delta->old_file.size, git_blob_rawsize(d));
cl_assert_equal_oid(git_blob_id(d), &delta->old_file.id);
cl_assert_equal_sz(delta->new_file.size, git_blob_rawsize(d));
cl_assert_equal_oid(git_blob_id(d), &delta->new_file.id);
cl_assert_equal_i(0, (int)git_patch_num_hunks(p));
git_patch_free(p);
cl_git_pass(git_patch_from_blobs(&p, NULL, NULL, NULL, NULL, &opts));
cl_assert(p != NULL);
delta = git_patch_get_delta(p);
cl_assert(delta != NULL);
cl_assert_equal_i(GIT_DELTA_UNMODIFIED, delta->status);
cl_assert_equal_sz(0, delta->old_file.size);
cl_assert(git_oid_iszero(&delta->old_file.id));
cl_assert_equal_sz(0, delta->new_file.size);
cl_assert(git_oid_iszero(&delta->new_file.id));
cl_assert_equal_i(0, (int)git_patch_num_hunks(p));
git_patch_free(p);
cl_git_pass(git_patch_from_blobs(&p, alien, NULL, alien, NULL, &opts));
cl_assert(p != NULL);
cl_assert_equal_i(GIT_DELTA_UNMODIFIED, git_patch_get_delta(p)->status);
cl_assert_equal_i(0, (int)git_patch_num_hunks(p));
git_patch_free(p);
}
PyObject *
wrap_patch(git_patch *patch)
{
Patch *py_patch;
if (!patch)
Py_RETURN_NONE;
py_patch = PyObject_New(Patch, &PatchType);
if (py_patch) {
size_t i, j, hunk_amounts, lines_in_hunk, additions, deletions;
const git_diff_delta *delta;
const git_diff_hunk *hunk;
const git_diff_line *line;
int err;
delta = git_patch_get_delta(patch);
py_patch->old_file_path = delta->old_file.path;
py_patch->new_file_path = delta->new_file.path;
py_patch->status = git_diff_status_char(delta->status);
py_patch->similarity = delta->similarity;
py_patch->flags = delta->flags;
py_patch->old_id = git_oid_allocfmt(&delta->old_file.id);
py_patch->new_id = git_oid_allocfmt(&delta->new_file.id);
git_patch_line_stats(NULL, &additions, &deletions, patch);
py_patch->additions = additions;
py_patch->deletions = deletions;
hunk_amounts = git_patch_num_hunks(patch);
py_patch->hunks = PyList_New(hunk_amounts);
for (i = 0; i < hunk_amounts; ++i) {
Hunk *py_hunk = NULL;
err = git_patch_get_hunk(&hunk, &lines_in_hunk, patch, i);
if (err < 0)
return Error_set(err);
py_hunk = PyObject_New(Hunk, &HunkType);
if (py_hunk != NULL) {
py_hunk->old_start = hunk->old_start;
py_hunk->old_lines = hunk->old_lines;
py_hunk->new_start = hunk->new_start;
py_hunk->new_lines = hunk->new_lines;
py_hunk->lines = PyList_New(lines_in_hunk);
for (j = 0; j < lines_in_hunk; ++j) {
PyObject *py_line_origin = NULL, *py_line = NULL;
err = git_patch_get_line_in_hunk(&line, patch, i, j);
if (err < 0)
return Error_set(err);
py_line_origin = to_unicode_n(&line->origin, 1,
NULL, NULL);
py_line = to_unicode_n(line->content, line->content_len,
NULL, NULL);
PyList_SetItem(py_hunk->lines, j,
Py_BuildValue("OO", py_line_origin, py_line));
Py_DECREF(py_line_origin);
Py_DECREF(py_line);
}
PyList_SetItem((PyObject*) py_patch->hunks, i,
(PyObject*) py_hunk);
}
}
}
git_patch_free(patch);
return (PyObject*) py_patch;
}
int diff_foreach_via_iterator(
git_diff *diff,
git_diff_file_cb file_cb,
git_diff_hunk_cb hunk_cb,
git_diff_line_cb line_cb,
void *data)
{
size_t d, num_d = git_diff_num_deltas(diff);
for (d = 0; d < num_d; ++d) {
git_patch *patch;
const git_diff_delta *delta;
size_t h, num_h;
cl_git_pass(git_patch_from_diff(&patch, diff, d));
cl_assert((delta = git_patch_get_delta(patch)) != NULL);
/* call file_cb for this file */
if (file_cb != NULL && file_cb(delta, (float)d / num_d, data) != 0) {
git_patch_free(patch);
goto abort;
}
/* if there are no changes, then the patch will be NULL */
if (!patch) {
cl_assert(delta->status == GIT_DELTA_UNMODIFIED ||
(delta->flags & GIT_DIFF_FLAG_BINARY) != 0);
continue;
}
if (!hunk_cb && !line_cb) {
git_patch_free(patch);
continue;
}
num_h = git_patch_num_hunks(patch);
for (h = 0; h < num_h; h++) {
const git_diff_hunk *hunk;
size_t l, num_l;
cl_git_pass(git_patch_get_hunk(&hunk, &num_l, patch, h));
if (hunk_cb && hunk_cb(delta, hunk, data) != 0) {
git_patch_free(patch);
goto abort;
}
for (l = 0; l < num_l; ++l) {
const git_diff_line *line;
cl_git_pass(git_patch_get_line_in_hunk(&line, patch, h, l));
if (line_cb &&
line_cb(delta, hunk, line, data) != 0) {
git_patch_free(patch);
goto abort;
}
}
}
git_patch_free(patch);
}
return 0;
abort:
giterr_clear();
return GIT_EUSER;
}
int git_diff_get_stats(
git_diff_stats **out,
git_diff *diff)
{
size_t i, deltas;
size_t total_insertions = 0, total_deletions = 0;
git_diff_stats *stats = NULL;
int error = 0;
assert(out && diff);
stats = (git_diff_stats *) git__calloc(1, sizeof(git_diff_stats));
GITERR_CHECK_ALLOC(stats);
deltas = git_diff_num_deltas(diff);
stats->filestats = (diff_file_stats *) git__calloc(deltas, sizeof(diff_file_stats));
if (!stats->filestats) {
git__free(stats);
return -1;
}
stats->diff = diff;
GIT_REFCOUNT_INC(diff);
for (i = 0; i < deltas && !error; ++i) {
git_patch *patch = NULL;
size_t add = 0, remove = 0, namelen;
const git_diff_delta *delta;
if ((error = git_patch_from_diff(&patch, diff, i)) < 0)
break;
/* keep a count of renames because it will affect formatting */
delta = git_patch_get_delta(patch);
namelen = strlen(delta->new_file.path);
if (strcmp(delta->old_file.path, delta->new_file.path) != 0) {
namelen += strlen(delta->old_file.path);
stats->renames++;
}
/* and, of course, count the line stats */
error = git_patch_line_stats(NULL, &add, &remove, patch);
git_patch_free(patch);
stats->filestats[i].insertions = add;
stats->filestats[i].deletions = remove;
total_insertions += add;
total_deletions += remove;
if (stats->max_name < namelen)
stats->max_name = namelen;
if (stats->max_filestat < add + remove)
stats->max_filestat = add + remove;
}
stats->files_changed = deltas;
stats->insertions = total_insertions;
stats->deletions = total_deletions;
stats->max_digits = digits_for_value(stats->max_filestat + 1);
if (error < 0) {
git_diff_stats_free(stats);
stats = NULL;
}
*out = stats;
return error;
}
static int git_xdiff_cb(void *priv, mmbuffer_t *bufs, int len)
{
git_xdiff_info *info = priv;
git_patch *patch = info->patch;
const git_diff_delta *delta = git_patch_get_delta(patch);
git_diff_output *output = &info->xo->output;
git_diff_line line;
if (len == 1) {
output->error = git_xdiff_parse_hunk(&info->hunk, bufs[0].ptr);
if (output->error < 0)
return output->error;
info->hunk.header_len = bufs[0].size;
if (info->hunk.header_len >= sizeof(info->hunk.header))
info->hunk.header_len = sizeof(info->hunk.header) - 1;
memcpy(info->hunk.header, bufs[0].ptr, info->hunk.header_len);
info->hunk.header[info->hunk.header_len] = '\0';
if (output->hunk_cb != NULL &&
output->hunk_cb(delta, &info->hunk, output->payload))
output->error = GIT_EUSER;
info->old_lineno = info->hunk.old_start;
info->new_lineno = info->hunk.new_start;
}
if (len == 2 || len == 3) {
/* expect " "/"-"/"+", then data */
line.origin =
(*bufs[0].ptr == '+') ? GIT_DIFF_LINE_ADDITION :
(*bufs[0].ptr == '-') ? GIT_DIFF_LINE_DELETION :
GIT_DIFF_LINE_CONTEXT;
if (line.origin == GIT_DIFF_LINE_ADDITION)
line.content_offset = bufs[1].ptr - info->xd_new_data.ptr;
else if (line.origin == GIT_DIFF_LINE_DELETION)
line.content_offset = bufs[1].ptr - info->xd_old_data.ptr;
else
line.content_offset = -1;
output->error = diff_update_lines(
info, &line, bufs[1].ptr, bufs[1].size);
if (!output->error &&
output->data_cb != NULL &&
output->data_cb(delta, &info->hunk, &line, output->payload))
output->error = GIT_EUSER;
}
if (len == 3 && !output->error) {
/* If we have a '+' and a third buf, then we have added a line
* without a newline and the old code had one, so DEL_EOFNL.
* If we have a '-' and a third buf, then we have removed a line
* with out a newline but added a blank line, so ADD_EOFNL.
*/
line.origin =
(*bufs[0].ptr == '+') ? GIT_DIFF_LINE_DEL_EOFNL :
(*bufs[0].ptr == '-') ? GIT_DIFF_LINE_ADD_EOFNL :
GIT_DIFF_LINE_CONTEXT_EOFNL;
line.content_offset = -1;
output->error = diff_update_lines(
info, &line, bufs[2].ptr, bufs[2].size);
if (!output->error &&
output->data_cb != NULL &&
output->data_cb(delta, &info->hunk, &line, output->payload))
output->error = GIT_EUSER;
}
return output->error;
}
void test_diff_blob__can_compare_blob_to_buffer_with_patch(void)
{
git_patch *p;
git_blob *a;
git_oid a_oid;
const char *a_content = "Hello from the root\n";
const char *b_content = "Hello from the root\n\nSome additional lines\n\nDown here below\n\n";
size_t tc, ta, td;
/* tests/resources/attr/root_test1 */
cl_git_pass(git_oid_fromstrn(&a_oid, "45141a79", 8));
cl_git_pass(git_blob_lookup_prefix(&a, g_repo, &a_oid, 8));
/* diff from blob a to content of b */
cl_git_pass(git_patch_from_blob_and_buffer(
&p, a, NULL, b_content, strlen(b_content), NULL, &opts));
cl_assert(p != NULL);
cl_assert_equal_i(GIT_DELTA_MODIFIED, git_patch_get_delta(p)->status);
cl_assert_equal_i(1, (int)git_patch_num_hunks(p));
cl_assert_equal_i(6, git_patch_num_lines_in_hunk(p, 0));
cl_git_pass(git_patch_line_stats(&tc, &ta, &td, p));
cl_assert_equal_i(1, (int)tc);
cl_assert_equal_i(5, (int)ta);
cl_assert_equal_i(0, (int)td);
git_patch_free(p);
/* diff from blob a to content of a */
opts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
cl_git_pass(git_patch_from_blob_and_buffer(
&p, a, NULL, a_content, strlen(a_content), NULL, &opts));
cl_assert(p != NULL);
cl_assert_equal_i(GIT_DELTA_UNMODIFIED, git_patch_get_delta(p)->status);
cl_assert_equal_i(0, (int)git_patch_num_hunks(p));
git_patch_free(p);
/* diff from NULL blob to content of a */
cl_git_pass(git_patch_from_blob_and_buffer(
&p, NULL, NULL, a_content, strlen(a_content), NULL, &opts));
cl_assert(p != NULL);
cl_assert_equal_i(GIT_DELTA_ADDED, git_patch_get_delta(p)->status);
cl_assert_equal_i(1, (int)git_patch_num_hunks(p));
cl_assert_equal_i(1, git_patch_num_lines_in_hunk(p, 0));
git_patch_free(p);
/* diff from blob a to NULL buffer */
cl_git_pass(git_patch_from_blob_and_buffer(
&p, a, NULL, NULL, 0, NULL, &opts));
cl_assert(p != NULL);
cl_assert_equal_i(GIT_DELTA_DELETED, git_patch_get_delta(p)->status);
cl_assert_equal_i(1, (int)git_patch_num_hunks(p));
cl_assert_equal_i(1, git_patch_num_lines_in_hunk(p, 0));
git_patch_free(p);
/* diff with reverse */
opts.flags ^= GIT_DIFF_REVERSE;
cl_git_pass(git_patch_from_blob_and_buffer(
&p, a, NULL, NULL, 0, NULL, &opts));
cl_assert(p != NULL);
cl_assert_equal_i(GIT_DELTA_ADDED, git_patch_get_delta(p)->status);
cl_assert_equal_i(1, (int)git_patch_num_hunks(p));
cl_assert_equal_i(1, git_patch_num_lines_in_hunk(p, 0));
git_patch_free(p);
git_blob_free(a);
}
void test_diff_blob__can_compare_against_null_blobs_with_patch(void)
{
git_blob *e = NULL;
git_patch *p;
const git_diff_delta *delta;
const git_diff_line *line;
int l, max_l;
cl_git_pass(git_patch_from_blobs(&p, d, NULL, e, NULL, &opts));
cl_assert(p != NULL);
delta = git_patch_get_delta(p);
cl_assert(delta != NULL);
cl_assert_equal_i(GIT_DELTA_DELETED, delta->status);
cl_assert_equal_oid(git_blob_id(d), &delta->old_file.id);
cl_assert_equal_sz(git_blob_rawsize(d), delta->old_file.size);
cl_assert(git_oid_iszero(&delta->new_file.id));
cl_assert_equal_sz(0, delta->new_file.size);
cl_assert_equal_i(1, (int)git_patch_num_hunks(p));
cl_assert_equal_i(14, git_patch_num_lines_in_hunk(p, 0));
max_l = git_patch_num_lines_in_hunk(p, 0);
for (l = 0; l < max_l; ++l) {
cl_git_pass(git_patch_get_line_in_hunk(&line, p, 0, l));
cl_assert_equal_i(GIT_DIFF_LINE_DELETION, (int)line->origin);
}
git_patch_free(p);
opts.flags |= GIT_DIFF_REVERSE;
cl_git_pass(git_patch_from_blobs(&p, d, NULL, e, NULL, &opts));
cl_assert(p != NULL);
delta = git_patch_get_delta(p);
cl_assert(delta != NULL);
cl_assert_equal_i(GIT_DELTA_ADDED, delta->status);
cl_assert(git_oid_iszero(&delta->old_file.id));
cl_assert_equal_sz(0, delta->old_file.size);
cl_assert_equal_oid(git_blob_id(d), &delta->new_file.id);
cl_assert_equal_sz(git_blob_rawsize(d), delta->new_file.size);
cl_assert_equal_i(1, (int)git_patch_num_hunks(p));
cl_assert_equal_i(14, git_patch_num_lines_in_hunk(p, 0));
max_l = git_patch_num_lines_in_hunk(p, 0);
for (l = 0; l < max_l; ++l) {
cl_git_pass(git_patch_get_line_in_hunk(&line, p, 0, l));
cl_assert_equal_i(GIT_DIFF_LINE_ADDITION, (int)line->origin);
}
git_patch_free(p);
opts.flags ^= GIT_DIFF_REVERSE;
cl_git_pass(git_patch_from_blobs(&p, alien, NULL, NULL, NULL, &opts));
cl_assert(p != NULL);
delta = git_patch_get_delta(p);
cl_assert(delta != NULL);
cl_assert_equal_i(GIT_DELTA_DELETED, delta->status);
cl_assert((delta->flags & GIT_DIFF_FLAG_BINARY) != 0);
cl_assert_equal_i(0, (int)git_patch_num_hunks(p));
git_patch_free(p);
cl_git_pass(git_patch_from_blobs(&p, NULL, NULL, alien, NULL, &opts));
cl_assert(p != NULL);
delta = git_patch_get_delta(p);
cl_assert(delta != NULL);
cl_assert_equal_i(GIT_DELTA_ADDED, delta->status);
cl_assert((delta->flags & GIT_DIFF_FLAG_BINARY) != 0);
cl_assert_equal_i(0, (int)git_patch_num_hunks(p));
git_patch_free(p);
}
