20130409.commitdrev.php
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	<?php

	echo "Migrating differential.revisionPHID to edges...\n";
	$commit_table = new PhabricatorRepositoryCommit();
	$data_table = new PhabricatorRepositoryCommitData();
	$editor = new PhabricatorEdgeEditor();
	$commit_table->establishConnection('w');
	$edges = 0;

	foreach (new LiskMigrationIterator($commit_table) as $commit) {
	$data = $commit->loadOneRelative($data_table, 'commitID');
	if (!$data) {
	continue;
	}

	$revision_phid = $data->getCommitDetail('differential.revisionPHID');
	if (!$revision_phid) {
	continue;
	}

	$commit_drev = PhabricatorEdgeConfig::TYPE_COMMIT_HAS_DREV;
	$editor->addEdge($commit->getPHID(), $commit_drev, $revision_phid);
	$edges++;
	if ($edges % 256 == 0) {
	echo '.';
	$editor->save();
	$editor = new PhabricatorEdgeEditor();
	}
	}

	echo '.';
	$editor->save();
	echo "\nDone.\n";