void test_diff_parse__patch_roundtrip_succeeds(void)
{
const char buf1[] = "a\n", buf2[] = "b\n";
git_buf patchbuf = GIT_BUF_INIT, diffbuf = GIT_BUF_INIT;
git_patch *patch;
git_diff *diff;
cl_git_pass(git_patch_from_buffers(&patch, buf1, strlen(buf1), "obj1", buf2, strlen(buf2), "obj2", NULL));
cl_git_pass(git_patch_to_buf(&patchbuf, patch));
cl_git_pass(git_diff_from_buffer(&diff, patchbuf.ptr, patchbuf.size));
cl_git_pass(git_diff_to_buf(&diffbuf, diff, GIT_DIFF_FORMAT_PATCH));
cl_assert_equal_s(patchbuf.ptr, diffbuf.ptr);
git_patch_free(patch);
git_diff_free(diff);
git_buf_free(&patchbuf);
git_buf_free(&diffbuf);
}
/*
* call-seq:
* Patch.from_strings(old_content = nil, new_content = nil, options = {}) -> patch
*
* Directly generate a Rugged::Patch from the difference between the content of
* the two strings `old_content` and `new_content`.
*
* The following options can be passed in the +options+ Hash:
*
* :old_path ::
* An optional string to treat +blob+ as if it had this filename.
*
* :new_path ::
* An optional string to treat +other+ as if it had this filename.
*
* Additionally, `options` can also contain all other valid diff options
* (see Rugged::Tree#diff for a complete list).
*/
VALUE rb_git_patch_from_strings(int argc, VALUE *argv, VALUE self)
{
git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
git_patch *patch;
char * old_path = NULL, * new_path = NULL;
VALUE rb_old_buffer, rb_new_buffer, rb_options;
rb_scan_args(argc, argv, "02:", &rb_old_buffer, &rb_new_buffer, &rb_options);
if (!NIL_P(rb_options)) {
VALUE rb_value;
rb_value = rb_hash_aref(rb_options, CSTR2SYM("old_path"));
if (!NIL_P(rb_value)) {
Check_Type(rb_value, T_STRING);
old_path = StringValueCStr(rb_value);
}
rb_value = rb_hash_aref(rb_options, CSTR2SYM("new_path"));
if (!NIL_P(rb_value)) {
Check_Type(rb_value, T_STRING);
new_path = StringValueCStr(rb_value);
}
rugged_parse_diff_options(&opts, rb_options);
}
rugged_exception_check(git_patch_from_buffers(&patch,
NIL_P(rb_old_buffer) ? NULL : StringValuePtr(rb_old_buffer),
NIL_P(rb_old_buffer) ? 0 : RSTRING_LEN(rb_old_buffer),
old_path,
NIL_P(rb_new_buffer) ? NULL : StringValuePtr(rb_new_buffer),
NIL_P(rb_new_buffer) ? 0 : RSTRING_LEN(rb_new_buffer),
new_path,
&opts
));
return rugged_patch_new(self, patch);
}
