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Merge pull request #2146 from libgit2/rb/diff-b2b

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Add git_diff_buffers and git_patch_from_buffers
This commit is contained in:
Vicent Marti 2014-02-28 09:40:17 +01:00
commit 06d41826b6
7 changed files with 318 additions and 336 deletions
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18
examples/diff.c
View File

@ -269,19 +269,23 @@ static void diff_print_numstat(git_diff *diff)
{
git_patch *patch;
const git_diff_delta *delta;
size_t i;
size_t ndeltas;
size_t d, ndeltas = git_diff_num_deltas(diff);
size_t nadditions, ndeletions;
ndeltas = git_diff_num_deltas(diff);
for (i = 0; i < ndeltas; i++){
for (d = 0; d < ndeltas; d++){
check_lg2(
git_patch_from_diff(&patch, diff, i),
git_patch_from_diff(&patch, diff, d),
"generating patch from diff", NULL);
check_lg2(
git_patch_line_stats(NULL, &nadditions, &ndeletions, patch),
"generating the number of additions and deletions", NULL);
delta = git_patch_get_delta(patch);
printf("%u\t%u\t%s\n", nadditions, ndeletions, delta->new_file.path);
printf("%ld\t%ld\t%s\n",
(long)nadditions, (long)ndeletions, delta->new_file.path);
git_patch_free(patch);
}
git_patch_free(patch);
}

33
include/git2/diff.h
View File

@ -1013,6 +1013,39 @@ GIT_EXTERN(int) git_diff_blob_to_buffer(
git_diff_line_cb line_cb,
void *payload);
/**
* Directly run a diff between two buffers.
*
* Even more than with `git_diff_blobs`, comparing two buffer lacks
* context, so the `git_diff_file` parameters to the callbacks will be
* faked a la the rules for `git_diff_blobs()`.
*
* @param old_buffer Raw data for old side of diff, or NULL for empty
* @param old_len Length of the raw data for old side of the diff
* @param old_as_path Treat old buffer as if it had this filename; can be NULL
* @param new_buffer Raw data for new side of diff, or NULL for empty
* @param new_len Length of raw data for new side of diff
* @param new_as_path Treat buffer as if it had this filename; can be NULL
* @param options Options for diff, or NULL for default options
* @param file_cb Callback for "file"; made once if there is a diff; can be NULL
* @param hunk_cb Callback for each hunk in diff; can be NULL
* @param line_cb Callback for each line in diff; can be NULL
* @param payload Payload passed to each callback function
* @return 0 on success, non-zero callback return value, or error code
*/
GIT_EXTERN(int) git_diff_buffers(
const void *old_buffer,
size_t old_len,
const char *old_as_path,
const void *new_buffer,
size_t new_len,
const char *new_as_path,
const git_diff_options *options,
git_diff_file_cb file_cb,
git_diff_hunk_cb hunk_cb,
git_diff_line_cb line_cb,
void *payload);
GIT_END_DECL

28
include/git2/patch.h
View File

@ -105,6 +105,34 @@ GIT_EXTERN(int) git_patch_from_blob_and_buffer(
const char *buffer_as_path,
const git_diff_options *opts);
/**
* Directly generate a patch from the difference between two buffers.
*
* This is just like `git_diff_buffers()` except it generates a patch
* object for the difference instead of directly making callbacks. You can
* use the standard `git_patch` accessor functions to read the patch
* data, and you must call `git_patch_free()` on the patch when done.
*
* @param out The generated patch; NULL on error
* @param old_buffer Raw data for old side of diff, or NULL for empty
* @param old_len Length of the raw data for old side of the diff
* @param old_as_path Treat old buffer as if it had this filename; can be NULL
* @param new_buffer Raw data for new side of diff, or NULL for empty
* @param new_len Length of raw data for new side of diff
* @param new_as_path Treat buffer as if it had this filename; can be NULL
* @param opts Options for diff, or NULL for default options
* @return 0 on success or error code < 0
*/
GIT_EXTERN(int) git_patch_from_buffers(
git_patch **out,
const void *old_buffer,
size_t old_len,
const char *old_as_path,
const char *new_buffer,
size_t new_len,
const char *new_as_path,
const git_diff_options *opts);
/**
* Free a git_patch object.
*/

49
src/diff_file.c
View File

@ -127,57 +127,38 @@ int git_diff_file_content__init_from_diff(
return diff_file_content_init_common(fc, &diff->opts);
}
int git_diff_file_content__init_from_blob(
int git_diff_file_content__init_from_src(
git_diff_file_content *fc,
git_repository *repo,
const git_diff_options *opts,
const git_blob *blob,
const git_diff_file_content_src *src,
git_diff_file *as_file)
{
memset(fc, 0, sizeof(*fc));
fc->repo = repo;
fc->file = as_file;
fc->blob = blob;
fc->blob = src->blob;
if (!blob) {
if (!src->blob && !src->buf) {
fc->flags |= GIT_DIFF_FLAG__NO_DATA;
} else {
fc->flags |= GIT_DIFF_FLAG__LOADED;
fc->file->flags |= GIT_DIFF_FLAG_VALID_ID;
fc->file->size = git_blob_rawsize(blob);
fc->file->mode = GIT_FILEMODE_BLOB;
git_oid_cpy(&fc->file->id, git_blob_id(blob));
fc->map.len = (size_t)fc->file->size;
fc->map.data = (char *)git_blob_rawcontent(blob);
}
if (src->blob) {
fc->file->size = git_blob_rawsize(src->blob);
git_oid_cpy(&fc->file->id, git_blob_id(src->blob));
return diff_file_content_init_common(fc, opts);
}
fc->map.len = (size_t)fc->file->size;
fc->map.data = (char *)git_blob_rawcontent(src->blob);
} else {
fc->file->size = src->buflen;
git_odb_hash(&fc->file->id, src->buf, src->buflen, GIT_OBJ_BLOB);
int git_diff_file_content__init_from_raw(
git_diff_file_content *fc,
git_repository *repo,
const git_diff_options *opts,
const char *buf,
size_t buflen,
git_diff_file *as_file)
{
memset(fc, 0, sizeof(*fc));
fc->repo = repo;
fc->file = as_file;
if (!buf) {
fc->flags |= GIT_DIFF_FLAG__NO_DATA;
} else {
fc->flags |= GIT_DIFF_FLAG__LOADED;
fc->file->flags |= GIT_DIFF_FLAG_VALID_ID;
fc->file->size = buflen;
fc->file->mode = GIT_FILEMODE_BLOB;
git_odb_hash(&fc->file->id, buf, buflen, GIT_OBJ_BLOB);
fc->map.len = buflen;
fc->map.data = (char *)buf;
fc->map.len = src->buflen;
fc->map.data = (char *)src->buf;
}
}
return diff_file_content_init_common(fc, opts);

20
src/diff_file.h
View File

@ -31,19 +31,21 @@ extern int git_diff_file_content__init_from_diff(
size_t delta_index,
bool use_old);
extern int git_diff_file_content__init_from_blob(
git_diff_file_content *fc,
git_repository *repo,
const git_diff_options *opts,
const git_blob *blob,
git_diff_file *as_file);
typedef struct {
const git_blob *blob;
const void *buf;
size_t buflen;
const char *as_path;
} git_diff_file_content_src;
extern int git_diff_file_content__init_from_raw(
#define GIT_DIFF_FILE_CONTENT_SRC__BLOB(BLOB,PATH) { (BLOB),NULL,0,(PATH) }
#define GIT_DIFF_FILE_CONTENT_SRC__BUF(BUF,LEN,PATH) { NULL,(BUF),(LEN),(PATH) }
extern int git_diff_file_content__init_from_src(
git_diff_file_content *fc,
git_repository *repo,
const git_diff_options *opts,
const char *buf,
size_t buflen,
const git_diff_file_content_src *src,
git_diff_file *as_file);
/* this loads the blob/file-on-disk as needed */

266
src/diff_patch.c
View File

@ -5,6 +5,7 @@
* a Linking Exception. For full terms see the included COPYING file.
*/
#include "common.h"
#include "git2/blob.h"
#include "diff.h"
#include "diff_file.h"
#include "diff_driver.h"
@ -334,38 +335,45 @@ static int diff_single_generate(diff_patch_with_delta *pd, git_xdiff_output *xo)
return error;
}
static int diff_patch_from_blobs(
static int diff_patch_from_sources(
diff_patch_with_delta *pd,
git_xdiff_output *xo,
const git_blob *old_blob,
const char *old_path,
const git_blob *new_blob,
const char *new_path,
git_diff_file_content_src *oldsrc,
git_diff_file_content_src *newsrc,
const git_diff_options *opts)
{
int error = 0;
git_repository *repo =
new_blob ? git_object_owner((const git_object *)new_blob) :
old_blob ? git_object_owner((const git_object *)old_blob) : NULL;
oldsrc->blob ? git_blob_owner(oldsrc->blob) :
newsrc->blob ? git_blob_owner(newsrc->blob) : NULL;
git_diff_file *lfile = &pd->delta.old_file, *rfile = &pd->delta.new_file;
git_diff_file_content *ldata = &pd->patch.ofile, *rdata = &pd->patch.nfile;
GITERR_CHECK_VERSION(opts, GIT_DIFF_OPTIONS_VERSION, "git_diff_options");
if (opts && (opts->flags & GIT_DIFF_REVERSE) != 0) {
const git_blob *tmp_blob;
const char *tmp_path;
tmp_blob = old_blob; old_blob = new_blob; new_blob = tmp_blob;
tmp_path = old_path; old_path = new_path; new_path = tmp_path;
void *tmp = lfile; lfile = rfile; rfile = tmp;
tmp = ldata; ldata = rdata; rdata = tmp;
}
pd->patch.delta = &pd->delta;
pd->delta.old_file.path = old_path;
pd->delta.new_file.path = new_path;
if (!oldsrc->as_path) {
if (newsrc->as_path)
oldsrc->as_path = newsrc->as_path;
else
oldsrc->as_path = newsrc->as_path = "file";
}
else if (!newsrc->as_path)
newsrc->as_path = oldsrc->as_path;
if ((error = git_diff_file_content__init_from_blob(
&pd->patch.ofile, repo, opts, old_blob, &pd->delta.old_file)) < 0 ||
(error = git_diff_file_content__init_from_blob(
&pd->patch.nfile, repo, opts, new_blob, &pd->delta.new_file)) < 0)
lfile->path = oldsrc->as_path;
rfile->path = newsrc->as_path;
if ((error = git_diff_file_content__init_from_src(
ldata, repo, opts, oldsrc, lfile)) < 0 ||
(error = git_diff_file_content__init_from_src(
rdata, repo, opts, newsrc, rfile)) < 0)
return error;
return diff_single_generate(pd, xo);
@ -400,11 +408,9 @@ static int diff_patch_with_delta_alloc(
return 0;
}
int git_diff_blobs(
const git_blob *old_blob,
const char *old_path,
const git_blob *new_blob,
const char *new_path,
static int diff_from_sources(
git_diff_file_content_src *oldsrc,
git_diff_file_content_src *newsrc,
const git_diff_options *opts,
git_diff_file_cb file_cb,
git_diff_hunk_cb hunk_cb,
@ -420,20 +426,63 @@ int git_diff_blobs(
&xo.output, opts, file_cb, hunk_cb, data_cb, payload);
git_xdiff_init(&xo, opts);
if (!old_path && new_path)
old_path = new_path;
else if (!new_path && old_path)
new_path = old_path;
memset(&pd, 0, sizeof(pd));
error = diff_patch_from_blobs(
&pd, &xo, old_blob, old_path, new_blob, new_path, opts);
error = diff_patch_from_sources(&pd, &xo, oldsrc, newsrc, opts);
git_patch_free(&pd.patch);
return error;
}
static int patch_from_sources(
git_patch **out,
git_diff_file_content_src *oldsrc,
git_diff_file_content_src *newsrc,
const git_diff_options *opts)
{
int error = 0;
diff_patch_with_delta *pd;
git_xdiff_output xo;
assert(out);
*out = NULL;
if ((error = diff_patch_with_delta_alloc(
&pd, &oldsrc->as_path, &newsrc->as_path)) < 0)
return error;
memset(&xo, 0, sizeof(xo));
diff_output_to_patch(&xo.output, &pd->patch);
git_xdiff_init(&xo, opts);
if (!(error = diff_patch_from_sources(pd, &xo, oldsrc, newsrc, opts)))
*out = (git_patch *)pd;
else
git_patch_free((git_patch *)pd);
return error;
}
int git_diff_blobs(
const git_blob *old_blob,
const char *old_path,
const git_blob *new_blob,
const char *new_path,
const git_diff_options *opts,
git_diff_file_cb file_cb,
git_diff_hunk_cb hunk_cb,
git_diff_line_cb data_cb,
void *payload)
{
git_diff_file_content_src osrc =
GIT_DIFF_FILE_CONTENT_SRC__BLOB(old_blob, old_path);
git_diff_file_content_src nsrc =
GIT_DIFF_FILE_CONTENT_SRC__BLOB(new_blob, new_path);
return diff_from_sources(
&osrc, &nsrc, opts, file_cb, hunk_cb, data_cb, payload);
}
int git_patch_from_blobs(
git_patch **out,
const git_blob *old_blob,
@ -442,71 +491,11 @@ int git_patch_from_blobs(
const char *new_path,
const git_diff_options *opts)
{
int error = 0;
diff_patch_with_delta *pd;
git_xdiff_output xo;
assert(out);
*out = NULL;
if (diff_patch_with_delta_alloc(&pd, &old_path, &new_path) < 0)
return -1;
memset(&xo, 0, sizeof(xo));
diff_output_to_patch(&xo.output, &pd->patch);
git_xdiff_init(&xo, opts);
error = diff_patch_from_blobs(
pd, &xo, old_blob, old_path, new_blob, new_path, opts);
if (!error)
*out = (git_patch *)pd;
else
git_patch_free((git_patch *)pd);
return error;
}
static int diff_patch_from_blob_and_buffer(
diff_patch_with_delta *pd,
git_xdiff_output *xo,
const git_blob *old_blob,
const char *old_path,
const char *buf,
size_t buflen,
const char *buf_path,
const git_diff_options *opts)
{
int error = 0;
git_repository *repo =
old_blob ? git_object_owner((const git_object *)old_blob) : NULL;
GITERR_CHECK_VERSION(opts, GIT_DIFF_OPTIONS_VERSION, "git_diff_options");
pd->patch.delta = &pd->delta;
if (opts && (opts->flags & GIT_DIFF_REVERSE) != 0) {
pd->delta.old_file.path = buf_path;
pd->delta.new_file.path = old_path;
if (!(error = git_diff_file_content__init_from_raw(
&pd->patch.ofile, repo, opts, buf, buflen, &pd->delta.old_file)))
error = git_diff_file_content__init_from_blob(
&pd->patch.nfile, repo, opts, old_blob, &pd->delta.new_file);
} else {
pd->delta.old_file.path = old_path;
pd->delta.new_file.path = buf_path;
if (!(error = git_diff_file_content__init_from_blob(
&pd->patch.ofile, repo, opts, old_blob, &pd->delta.old_file)))
error = git_diff_file_content__init_from_raw(
&pd->patch.nfile, repo, opts, buf, buflen, &pd->delta.new_file);
}
if (error < 0)
return error;
return diff_single_generate(pd, xo);
git_diff_file_content_src osrc =
GIT_DIFF_FILE_CONTENT_SRC__BLOB(old_blob, old_path);
git_diff_file_content_src nsrc =
GIT_DIFF_FILE_CONTENT_SRC__BLOB(new_blob, new_path);
return patch_from_sources(out, &osrc, &nsrc, opts);
}
int git_diff_blob_to_buffer(
@ -521,27 +510,12 @@ int git_diff_blob_to_buffer(
git_diff_line_cb data_cb,
void *payload)
{
int error = 0;
diff_patch_with_delta pd;
git_xdiff_output xo;
memset(&xo, 0, sizeof(xo));
diff_output_init(
&xo.output, opts, file_cb, hunk_cb, data_cb, payload);
git_xdiff_init(&xo, opts);
if (!old_path && buf_path)
old_path = buf_path;
else if (!buf_path && old_path)
buf_path = old_path;
memset(&pd, 0, sizeof(pd));
error = diff_patch_from_blob_and_buffer(
&pd, &xo, old_blob, old_path, buf, buflen, buf_path, opts);
git_patch_free(&pd.patch);
return error;
git_diff_file_content_src osrc =
GIT_DIFF_FILE_CONTENT_SRC__BLOB(old_blob, old_path);
git_diff_file_content_src nsrc =
GIT_DIFF_FILE_CONTENT_SRC__BUF(buf, buflen, buf_path);
return diff_from_sources(
&osrc, &nsrc, opts, file_cb, hunk_cb, data_cb, payload);
}
int git_patch_from_blob_and_buffer(
@ -553,29 +527,49 @@ int git_patch_from_blob_and_buffer(
const char *buf_path,
const git_diff_options *opts)
{
int error = 0;
diff_patch_with_delta *pd;
git_xdiff_output xo;
git_diff_file_content_src osrc =
GIT_DIFF_FILE_CONTENT_SRC__BLOB(old_blob, old_path);
git_diff_file_content_src nsrc =
GIT_DIFF_FILE_CONTENT_SRC__BUF(buf, buflen, buf_path);
return patch_from_sources(out, &osrc, &nsrc, opts);
}
assert(out);
*out = NULL;
int git_diff_buffers(
const void *old_buf,
size_t old_len,
const char *old_path,
const void *new_buf,
size_t new_len,
const char *new_path,
const git_diff_options *opts,
git_diff_file_cb file_cb,
git_diff_hunk_cb hunk_cb,
git_diff_line_cb data_cb,
void *payload)
{
git_diff_file_content_src osrc =
GIT_DIFF_FILE_CONTENT_SRC__BUF(old_buf, old_len, old_path);
git_diff_file_content_src nsrc =
GIT_DIFF_FILE_CONTENT_SRC__BUF(new_buf, new_len, new_path);
return diff_from_sources(
&osrc, &nsrc, opts, file_cb, hunk_cb, data_cb, payload);
}
if (diff_patch_with_delta_alloc(&pd, &old_path, &buf_path) < 0)
return -1;
memset(&xo, 0, sizeof(xo));
diff_output_to_patch(&xo.output, &pd->patch);
git_xdiff_init(&xo, opts);
error = diff_patch_from_blob_and_buffer(
pd, &xo, old_blob, old_path, buf, buflen, buf_path, opts);
if (!error)
*out = (git_patch *)pd;
else
git_patch_free((git_patch *)pd);
return error;
int git_patch_from_buffers(
git_patch **out,
const void *old_buf,
size_t old_len,
const char *old_path,
const char *new_buf,
size_t new_len,
const char *new_path,
const git_diff_options *opts)
{
git_diff_file_content_src osrc =
GIT_DIFF_FILE_CONTENT_SRC__BUF(old_buf, old_len, old_path);
git_diff_file_content_src nsrc =
GIT_DIFF_FILE_CONTENT_SRC__BUF(new_buf, new_len, new_path);
return patch_from_sources(out, &osrc, &nsrc, opts);
}
int git_patch_from_diff(

240
tests/diff/blob.c
View File

@ -51,6 +51,20 @@ void test_diff_blob__cleanup(void)
cl_git_sandbox_cleanup();
}
static void assert_one_modified(
int hunks, int lines, int ctxt, int adds, int dels, diff_expects *exp)
{
cl_assert_equal_i(1, exp->files);
cl_assert_equal_i(1, exp->file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(0, exp->files_binary);
cl_assert_equal_i(hunks, exp->hunks);
cl_assert_equal_i(lines, exp->lines);
cl_assert_equal_i(ctxt, exp->line_ctxt);
cl_assert_equal_i(adds, exp->line_adds);
cl_assert_equal_i(dels, exp->line_dels);
}
void test_diff_blob__can_compare_text_blobs(void)
{
git_blob *a, *b, *c;
@ -71,79 +85,81 @@ void test_diff_blob__can_compare_text_blobs(void)
/* Doing the equivalent of a `git diff -U1` on these files */
/* diff on tests/resources/attr/root_test1 */
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
a, NULL, b, NULL, &opts,
diff_file_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_one_modified(1, 6, 1, 5, 0, &expected);
cl_assert_equal_i(1, expected.files);
cl_assert_equal_i(1, expected.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(0, expected.files_binary);
cl_assert_equal_i(1, expected.hunks);
cl_assert_equal_i(6, expected.lines);
cl_assert_equal_i(1, expected.line_ctxt);
cl_assert_equal_i(5, expected.line_adds);
cl_assert_equal_i(0, expected.line_dels);
/* same diff but use direct buffers */
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_buffers(
git_blob_rawcontent(a), (size_t)git_blob_rawsize(a), NULL,
git_blob_rawcontent(b), (size_t)git_blob_rawsize(b), NULL, &opts,
diff_file_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_one_modified(1, 6, 1, 5, 0, &expected);
/* diff on tests/resources/attr/root_test2 */
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
b, NULL, c, NULL, &opts,
diff_file_cb, diff_hunk_cb, diff_line_cb, &expected));
cl_assert_equal_i(1, expected.files);
cl_assert_equal_i(1, expected.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(0, expected.files_binary);
cl_assert_equal_i(1, expected.hunks);
cl_assert_equal_i(15, expected.lines);
cl_assert_equal_i(3, expected.line_ctxt);
cl_assert_equal_i(9, expected.line_adds);
cl_assert_equal_i(3, expected.line_dels);
assert_one_modified(1, 15, 3, 9, 3, &expected);
/* diff on tests/resources/attr/root_test3 */
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
a, NULL, c, NULL, &opts,
diff_file_cb, diff_hunk_cb, diff_line_cb, &expected));
cl_assert_equal_i(1, expected.files);
cl_assert_equal_i(1, expected.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(0, expected.files_binary);
cl_assert_equal_i(1, expected.hunks);
cl_assert_equal_i(13, expected.lines);
cl_assert_equal_i(0, expected.line_ctxt);
cl_assert_equal_i(12, expected.line_adds);
cl_assert_equal_i(1, expected.line_dels);
assert_one_modified(1, 13, 0, 12, 1, &expected);
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
c, NULL, d, NULL, &opts,
diff_file_cb, diff_hunk_cb, diff_line_cb, &expected));
cl_assert_equal_i(1, expected.files);
cl_assert_equal_i(1, expected.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(0, expected.files_binary);
cl_assert_equal_i(2, expected.hunks);
cl_assert_equal_i(14, expected.lines);
cl_assert_equal_i(4, expected.line_ctxt);
cl_assert_equal_i(6, expected.line_adds);
cl_assert_equal_i(4, expected.line_dels);
assert_one_modified(2, 14, 4, 6, 4, &expected);
git_blob_free(a);
git_blob_free(b);
git_blob_free(c);
}
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(git_oid_equal(git_blob_id(a), &delta->old_file.id));
cl_assert_equal_sz(git_blob_rawsize(a), delta->old_file.size);
cl_assert(git_oid_equal(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_text_blobs_with_patch(void)
{
git_blob *a, *b, *c;
git_oid a_oid, b_oid, c_oid;
git_patch *p;
const git_diff_delta *delta;
size_t tc, ta, td;
/* tests/resources/attr/root_test1 */
cl_git_pass(git_oid_fromstrn(&a_oid, "45141a79", 8));
@ -161,92 +177,22 @@ void test_diff_blob__can_compare_text_blobs_with_patch(void)
/* diff on tests/resources/attr/root_test1 */
cl_git_pass(git_patch_from_blobs(&p, a, NULL, b, NULL, &opts));
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(git_oid_equal(git_blob_id(a), &delta->old_file.id));
cl_assert_equal_sz(git_blob_rawsize(a), delta->old_file.size);
cl_assert(git_oid_equal(git_blob_id(b), &delta->new_file.id));
cl_assert_equal_sz(git_blob_rawsize(b), delta->new_file.size);
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);
assert_patch_matches_blobs(p, a, b, 1, 6, 0, 1, 5, 0);
git_patch_free(p);
/* diff on tests/resources/attr/root_test2 */
cl_git_pass(git_patch_from_blobs(&p, b, NULL, c, NULL, &opts));
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(git_oid_equal(git_blob_id(b), &delta->old_file.id));
cl_assert_equal_sz(git_blob_rawsize(b), delta->old_file.size);
cl_assert(git_oid_equal(git_blob_id(c), &delta->new_file.id));
cl_assert_equal_sz(git_blob_rawsize(c), delta->new_file.size);
cl_assert_equal_i(1, (int)git_patch_num_hunks(p));
cl_assert_equal_i(15, git_patch_num_lines_in_hunk(p, 0));
cl_git_pass(git_patch_line_stats(&tc, &ta, &td, p));
cl_assert_equal_i(3, (int)tc);
cl_assert_equal_i(9, (int)ta);
cl_assert_equal_i(3, (int)td);
assert_patch_matches_blobs(p, b, c, 1, 15, 0, 3, 9, 3);
git_patch_free(p);
/* diff on tests/resources/attr/root_test3 */
cl_git_pass(git_patch_from_blobs(&p, a, NULL, c, NULL, &opts));
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(git_oid_equal(git_blob_id(a), &delta->old_file.id));
cl_assert_equal_sz(git_blob_rawsize(a), delta->old_file.size);
cl_assert(git_oid_equal(git_blob_id(c), &delta->new_file.id));
cl_assert_equal_sz(git_blob_rawsize(c), delta->new_file.size);
cl_git_pass(git_patch_line_stats(&tc, &ta, &td, p));
cl_assert_equal_i(0, (int)tc);
cl_assert_equal_i(12, (int)ta);
cl_assert_equal_i(1, (int)td);
assert_patch_matches_blobs(p, a, c, 1, 13, 0, 0, 12, 1);
git_patch_free(p);
/* one more */
cl_git_pass(git_patch_from_blobs(&p, c, NULL, d, NULL, &opts));
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(git_oid_equal(git_blob_id(c), &delta->old_file.id));
cl_assert_equal_sz(git_blob_rawsize(c), delta->old_file.size);
cl_assert(git_oid_equal(git_blob_id(d), &delta->new_file.id));
cl_assert_equal_sz(git_blob_rawsize(d), delta->new_file.size);
cl_assert_equal_i(2, (int)git_patch_num_hunks(p));
cl_assert_equal_i(5, git_patch_num_lines_in_hunk(p, 0));
cl_assert_equal_i(9, git_patch_num_lines_in_hunk(p, 1));
cl_git_pass(git_patch_line_stats(&tc, &ta, &td, p));
cl_assert_equal_i(4, (int)tc);
cl_assert_equal_i(6, (int)ta);
cl_assert_equal_i(4, (int)td);
assert_patch_matches_blobs(p, c, d, 2, 5, 9, 4, 6, 4);
git_patch_free(p);
git_blob_free(a);
@ -656,14 +602,7 @@ void test_diff_blob__can_compare_blob_to_buffer(void)
/* diff from blob a to content of b */
quick_diff_blob_to_str(a, NULL, b_content, 0, NULL);
cl_assert_equal_i(1, expected.files);
cl_assert_equal_i(1, expected.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(0, expected.files_binary);
cl_assert_equal_i(1, expected.hunks);
cl_assert_equal_i(6, expected.lines);
cl_assert_equal_i(1, expected.line_ctxt);
cl_assert_equal_i(5, expected.line_adds);
cl_assert_equal_i(0, expected.line_dels);
assert_one_modified(1, 6, 1, 5, 0, &expected);
/* diff from blob a to content of a */
opts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
@ -910,14 +849,7 @@ void test_diff_blob__using_path_and_attributes(void)
changed = "Hello from the root\nMore lines\nAnd more\nGo here\n";
quick_diff_blob_to_str(nonbin, NULL, changed, 0, NULL);
cl_assert_equal_i(1, expected.files);
cl_assert_equal_i(1, expected.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(0, expected.files_binary);
cl_assert_equal_i(1, expected.hunks);
cl_assert_equal_i(3, expected.lines);
cl_assert_equal_i(0, expected.line_ctxt);
cl_assert_equal_i(3, expected.line_adds);
cl_assert_equal_i(0, expected.line_dels);
assert_one_modified(1, 3, 0, 3, 0, &expected);
quick_diff_blob_to_str(nonbin, "foo/bar.binary", changed, 0, NULL);
cl_assert_equal_i(1, expected.files);
@ -925,29 +857,12 @@ void test_diff_blob__using_path_and_attributes(void)
cl_assert_equal_i(1, expected.files_binary);
cl_assert_equal_i(0, expected.hunks);
cl_assert_equal_i(0, expected.lines);
cl_assert_equal_i(0, expected.line_ctxt);
cl_assert_equal_i(0, expected.line_adds);
cl_assert_equal_i(0, expected.line_dels);
quick_diff_blob_to_str(nonbin, "foo/bar.textary", changed, 0, NULL);
cl_assert_equal_i(1, expected.files);
cl_assert_equal_i(1, expected.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(0, expected.files_binary);
cl_assert_equal_i(1, expected.hunks);
cl_assert_equal_i(3, expected.lines);
cl_assert_equal_i(0, expected.line_ctxt);
cl_assert_equal_i(3, expected.line_adds);
cl_assert_equal_i(0, expected.line_dels);
assert_one_modified(1, 3, 0, 3, 0, &expected);
quick_diff_blob_to_str(nonbin, "foo/bar.alphary", changed, 0, NULL);
cl_assert_equal_i(1, expected.files);
cl_assert_equal_i(1, expected.file_status[GIT_DELTA_MODIFIED]);
cl_assert_equal_i(0, expected.files_binary);
cl_assert_equal_i(1, expected.hunks);
cl_assert_equal_i(3, expected.lines);
cl_assert_equal_i(0, expected.line_ctxt);
cl_assert_equal_i(3, expected.line_adds);
cl_assert_equal_i(0, expected.line_dels);
assert_one_modified(1, 3, 0, 3, 0, &expected);
cl_git_pass(git_patch_from_blob_and_buffer(
&p, nonbin, "zzz.normal", changed, strlen(changed), NULL, &opts));
@ -1066,3 +981,28 @@ void test_diff_blob__using_path_and_attributes(void)
git_blob_free(nonbin);
git_blob_free(bin);
}
void test_diff_blob__can_compare_buffer_to_buffer(void)
{
const char *a = "a\nb\nc\nd\ne\nf\ng\nh\ni\nj\n";
const char *b = "a\nB\nc\nd\nE\nF\nh\nj\nk\n";
opts.interhunk_lines = 0;
opts.context_lines = 0;
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_buffers(
a, strlen(a), NULL, b, strlen(b), NULL,
&opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_one_modified(4, 9, 0, 4, 5, &expected);
opts.flags ^= GIT_DIFF_REVERSE;
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_buffers(
a, strlen(a), NULL, b, strlen(b), NULL,
&opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_one_modified(4, 9, 0, 5, 4, &expected);
}