ArcanistRepositoryRef.php
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	<?php

	final class ArcanistRepositoryRef
	extends ArcanistRef {

	private $parameters = array();
	private $phid;
	private $browseURI;

	public function getRefDisplayName() {
	return pht('Remote Repository');
	}

	public function setPHID($phid) {
	$this->phid = $phid;
	return $this;
	}

	public function getPHID() {
	return $this->phid;
	}

	public function setBrowseURI($browse_uri) {
	$this->browseURI = $browse_uri;
	return $this;
	}

	public static function newFromConduit(array $map) {
	$ref = new self();
	$ref->parameters = $map;

	$ref->phid = $map['phid'];

	return $ref;
	}

	public function getURIs() {
	$uris = idxv($this->parameters, array('attachments', 'uris', 'uris'));

	if (!$uris) {
	return array();
	}

	$results = array();
	foreach ($uris as $uri) {
	$effective_uri = idxv($uri, array('fields', 'uri', 'effective'));
	if ($effective_uri !== null) {
	$results[] = $effective_uri;
	}
	}

	return $results;
	}

	public function getDisplayName() {
	return idxv($this->parameters, array('fields', 'name'));
	}

	public function newBrowseURI(array $params) {
	PhutilTypeSpec::checkMap(
	$params,
	array(
	'path' => 'optional string\|null',
	'branch' => 'optional string\|null',
	'lines' => 'optional string\|null',
	));

	foreach ($params as $key => $value) {
	if ($value === null \|\| !strlen($value)) {
	unset($params[$key]);
	}
	}

	$defaults = array(
	'path' => '/',
	'branch' => $this->getDefaultBranch(),
	'lines' => null,
	);

	$params = $params + $defaults;

	$uri_base = $this->browseURI;
	$uri_base = rtrim($uri_base, '/');

	$uri_branch = phutil_escape_uri_path_component($params['branch']);

	$uri_path = ltrim($params['path'], '/');
	$uri_path = phutil_escape_uri($uri_path);

	$uri_lines = null;
	if ($params['lines']) {
	$uri_lines = '$'.phutil_escape_uri($params['lines']);
	}

	// TODO: This construction, which includes a branch, is probably wrong for
	// Subversion.

	return "{$uri_base}/browse/{$uri_branch}/{$uri_path}{$uri_lines}";
	}

	public function getDefaultBranch() {
	$branch = idxv($this->parameters, array('fields', 'defaultBranch'));

	if ($branch === null) {
	return 'master';
	}

	return $branch;
	}

	public function isPermanentRef(ArcanistMarkerRef $ref) {
	$rules = idxv(
	$this->parameters,
	array('fields', 'refRules', 'permanentRefRules'));

	if ($rules === null) {
	return false;
	}

	// If the rules exist but there are no specified rules, treat every ref
	// as permanent.
	if (!$rules) {
	return true;
	}

	// TODO: It would be nice to unify evaluation of permanent ref rules
	// across Arcanist and Phabricator.

	$ref_name = $ref->getName();
	foreach ($rules as $rule) {
	$matches = null;
	if (preg_match('(^regexp\$(.*)\$\z)', $rule, $matches)) {
	if (preg_match($matches[1], $ref_name)) {
	return true;
	}
	} else {
	if ($rule === $ref_name) {
	return true;
	}
	}
	}

	return false;
	}

	}

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