DiffusionPreCommitContentSizeHeraldField.php
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	<?php

	final class DiffusionPreCommitContentSizeHeraldField
	extends DiffusionPreCommitContentHeraldField {

	const FIELDCONST = 'diffusion.pre.content.diff.size';
	const MAX_SIZE = 33554432; // 32M

	public function getHeraldFieldName() {
	return pht('Diff size exceeded');
	}

	public function getFieldGroupKey() {
	return DiffusionChangeHeraldFieldGroup::FIELDGROUPKEY;
	}

	public function getHeraldFieldValue($object) {

	$adapter = $this->getAdapter();
	$hook = $adapter->getHookEngine();
	$repository = $hook->getRepository();
	$vcs = $repository->getVersionControlSystem();

	if($vcs == PhabricatorRepositoryType::REPOSITORY_TYPE_GIT) {

	$ref = $adapter->getObject()->getRefNew();
	$changesets = $hook->loadChangesetsForCommit($ref);

	$total_size = 0;
	foreach($changesets as $change){
	$size = exec("git cat-file -s $ref:" . $change->getFileName());
	$total_size += (int) $size;
	}

	if($total_size >= self::MAX_SIZE) {
	return true;
	}

	}

	return false;
	}

	protected function getHeraldFieldStandardType() {
	return HeraldField::STANDARD_BOOL;
	}

	}