public function testDiffChangesets()
{
$hunk = new DifferentialModernHunk();
$hunk->setChanges("+a\n b\n-c");
$hunk->setNewOffset(1);
$hunk->setNewLen(2);
$left = new DifferentialChangeset();
$left->attachHunks(array($hunk));
$tests = array("+a\n b\n-c" => array(array(), array()), "+a\n x\n-c" => array(array(), array()), "+aa\n b\n-c" => array(array(1), array(11)), " b\n-c" => array(array(1), array()), "+a\n b\n c" => array(array(), array(13)), "+a\n x\n c" => array(array(), array(13)));
foreach ($tests as $changes => $expected) {
$hunk = new DifferentialModernHunk();
$hunk->setChanges($changes);
$hunk->setNewOffset(11);
$hunk->setNewLen(3);
$right = new DifferentialChangeset();
$right->attachHunks(array($hunk));
$parser = new DifferentialChangesetParser();
$parser->setOriginals($left, $right);
$this->assertEqual($expected, $parser->diffOriginals(), $changes);
}
}
private static function buildChangesetsFromRawChanges(DifferentialDiff $diff, array $changes)
{
// There may not be any changes; initialize the changesets list so that
// we don't throw later when accessing it.
$diff->attachChangesets(array());
$lines = 0;
foreach ($changes as $change) {
if ($change->getType() == ArcanistDiffChangeType::TYPE_MESSAGE) {
// If a user pastes a diff into Differential which includes a commit
// message (e.g., they ran `git show` to generate it), discard that
// change when constructing a DifferentialDiff.
continue;
}
$changeset = new DifferentialChangeset();
$add_lines = 0;
$del_lines = 0;
$first_line = PHP_INT_MAX;
$hunks = $change->getHunks();
if ($hunks) {
foreach ($hunks as $hunk) {
$dhunk = new DifferentialModernHunk();
$dhunk->setOldOffset($hunk->getOldOffset());
$dhunk->setOldLen($hunk->getOldLength());
$dhunk->setNewOffset($hunk->getNewOffset());
$dhunk->setNewLen($hunk->getNewLength());
$dhunk->setChanges($hunk->getCorpus());
$changeset->addUnsavedHunk($dhunk);
$add_lines += $hunk->getAddLines();
$del_lines += $hunk->getDelLines();
$added_lines = $hunk->getChangedLines('new');
if ($added_lines) {
$first_line = min($first_line, head_key($added_lines));
}
}
$lines += $add_lines + $del_lines;
} else {
// This happens when you add empty files.
$changeset->attachHunks(array());
}
$metadata = $change->getAllMetadata();
if ($first_line != PHP_INT_MAX) {
$metadata['line:first'] = $first_line;
}
$changeset->setOldFile($change->getOldPath());
$changeset->setFilename($change->getCurrentPath());
$changeset->setChangeType($change->getType());
$changeset->setFileType($change->getFileType());
$changeset->setMetadata($metadata);
$changeset->setOldProperties($change->getOldProperties());
$changeset->setNewProperties($change->getNewProperties());
$changeset->setAwayPaths($change->getAwayPaths());
$changeset->setAddLines($add_lines);
$changeset->setDelLines($del_lines);
$diff->addUnsavedChangeset($changeset);
}
$diff->setLineCount($lines);
$parser = new DifferentialChangesetParser();
$changesets = $parser->detectCopiedCode($diff->getChangesets(), $min_width = 30, $min_lines = 3);
$diff->attachChangesets($changesets);
return $diff;
}