ArcanistBrowseCommitHardpointQuery.php
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ArcanistBrowseCommitHardpointQuery.php
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	<?php

	final class ArcanistBrowseCommitHardpointQuery
	extends ArcanistRuntimeHardpointQuery {

	public function getHardpoints() {
	return array(
	ArcanistBrowseRef::HARDPOINT_COMMITREFS,
	);
	}

	protected function canLoadRef(ArcanistRef $ref) {
	return ($ref instanceof ArcanistBrowseRef);
	}

	public function loadHardpoint(array $refs, $hardpoint) {
	$api = $this->getRepositoryAPI();

	$commit_map = array();
	foreach ($refs as $key => $ref) {
	$token = $ref->getToken();

	if ($token === '.') {
	// Git resolves "." like HEAD, but we want to treat it as "browse the
	// current directory" instead in all cases.
	continue;
	}

	// Always resolve the empty token; top-level loaders filter out
	// irrelevant tokens before this stage.
	if ($token === null) {
	$token = $api->getHeadCommit();
	}

	// TODO: We should pull a full commit ref out of the API as soon as it
	// is able to provide them. In particular, we currently miss Git tree
	// hashes which reduces the accuracy of lookups.

	try {
	$commit = $api->getCanonicalRevisionName($token);
	if ($commit) {
	$commit_map[$commit][] = $key;
	}
	} catch (Exception $ex) {
	// Ignore anything we can't resolve.
	}
	}

	if (!$commit_map) {
	yield $this->yieldMap(array());
	}

	$results = array();
	foreach ($commit_map as $commit_identifier => $ref_keys) {
	foreach ($ref_keys as $key) {
	$commit_ref = id(new ArcanistCommitRef())
	->setCommitHash($commit_identifier);
	$results[$key][] = $commit_ref;
	}
	}

	yield $this->yieldMap($results);
	}

	}