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phab/resources/sql/autopatches/20170528.maniphestdupes.php
d1842929afaafeature/better-testing

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20170528.maniphestdupes.php
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<?php
$table = new ManiphestTransaction();
$add_edges = array();
foreach (new LiskMigrationIterator($table) as $txn) {
$txn_type = $txn->getTransactionType();
if ($txn_type == 'mergedinto') {
// dupe handling as implemented in D10427, which creates a specific txn
$add_edges[] = array(
'src' => $txn->getObjectPHID(),
'dst' => $txn->getNewValue(),
);
} else if ($txn_type == 'status' && $txn->getNewValue() == 'duplicate') {
// dupe handling as originally implemented, which just changes the status
// and adds a comment
$src_phid = $txn->getObjectPHID();
// get all the comment transactions associated with this task
$viewer = PhabricatorUser::getOmnipotentUser();
$comment_txns = id(new ManiphestTransactionQuery())
->setViewer($viewer)
->withObjectPHIDs(array($src_phid))
->needComments(true)
->execute();
// check each comment, looking for the "Merged Into" message
foreach ($comment_txns as $comment_txn) {
if ($comment_txn->hasComment()) {
$comment = $comment_txn->getComment()->getContent();
$pattern = '/^\xE2\x9C\x98 Merged into T(\d+)\.$/';
$matches = array();
if (preg_match($pattern, $comment, $matches)) {
$dst_task = id(new ManiphestTaskQuery())
->setViewer($viewer)
->withIDs(array($matches[1]))
->executeOne();
if ($dst_task) {
$dst_phid = $dst_task->getPHID();
$add_edges[] = array(
'src' => $src_phid,
'dst' => $dst_phid,
);
}
}
}
}
}
}
if ($add_edges) {
foreach ($add_edges as $edge) {
$src_phid = $edge['src'];
$dst_phid = $edge['dst'];
$type = ManiphestTaskIsDuplicateOfTaskEdgeType::EDGECONST;
try {
$editor = id(new PhabricatorEdgeEditor())
->addEdge($src_phid, $type, $dst_phid)
->save();
} catch (PhabricatorEdgeCycleException $ex) {
// Some earlier or later merge made this invalid, just skip it.
}
}
}
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