testing

ConduitAPI_differential_getrawdiff_Method.php
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			<?php

			final class ConduitAPI_differential_getrawdiff_Method
			extends ConduitAPI_differential_Method {

			public function getMethodDescription() {
			return pht("Retrieve a raw diff");
			}

			public function defineParamTypes() {
			return array(
			'diffID' => 'required diffID',
			);
			}

			public function defineReturnType() {
			return 'nonempty string';
			}

			public function defineErrorTypes() {
			return array(
			'ERR_NOT_FOUND' => pht('Diff not found.'),
			);
			}

			protected function execute(ConduitAPIRequest $request) {
			$diff_id = $request->getValue('diffID');

			$viewer = $request->getUser();

			$diff = id(new DifferentialDiffQuery())
			->withIDs(array($diff_id))
			->setViewer($viewer)
			->executeOne();

			if (!$diff) {
			throw new ConduitException('ERR_NOT_FOUND');
			}

			$changesets = $diff->loadChangesets();
			foreach ($changesets as $changeset) {
			$changeset->attachHunks(
			$changeset->loadHunks());
			}

			$renderer = new DifferentialRawDiffRenderer();
			$renderer->setChangesets($changesets);
			$renderer->setViewer($viewer);
			$renderer->setFormat('git');
			return $renderer->buildPatch();

			}
			}