ArcanistBrowseWorkflow.php
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	<?php

	/*
	* Copyright 2012 Facebook, Inc.
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	/**
	* Browse file in Diffusion.
	*
	* @group workflow
	*/
	final class ArcanistBrowseWorkflow extends ArcanistBaseWorkflow {

	public function getWorkflowName() {
	return 'browse';
	}

	public function getCommandSynopses() {
	return phutil_console_format(<<<EOTEXT
	browse [__options__] __path__
	EOTEXT
	);
	}

	public function getCommandHelp() {
	return phutil_console_format(<<<EOTEXT
	Supports: git
	Browse file in Diffusion (Web interface).

	Set the 'browser' value using 'arc set-config' to select a browser. If
	no browser is set, the command will try to guess which browser to use.
	EOTEXT
	);
	}

	public function getArguments() {
	return array(
	'branch' => array(
	'param' => 'branch_name',
	'help' =>
	"Select branch name to view (On server). Defaults to 'master'."
	),
	'*' => 'paths',
	);
	}

	public function requiresWorkingCopy() {
	return true;
	}

	public function requiresConduit() {
	return true;
	}

	public function requiresAuthentication() {
	return true;
	}

	public function requiresRepositoryAPI() {
	return true;
	}

	public function run() {
	$repository_api = $this->getRepositoryAPI();
	$project_root = $this->getWorkingCopy()->getProjectRoot();

	$in_paths = $this->getArgument('paths');
	$paths = array();
	foreach ($in_paths as $key => $path) {
	$full_path = Filesystem::resolvePath($path);

	$paths[$key] = Filesystem::readablePath(
	$full_path,
	$project_root);
	}

	if (!$paths) {
	throw new ArcanistUsageException("Specify a path to browse");
	}

	$base_uri = $this->getBaseURI();
	$browser = $this->getBrowserCommand();

	foreach ($paths as $path) {
	$ret_code = phutil_passthru("%s %s", $browser, $base_uri . $path );
	if ($ret_code) {
	throw new ArcanistUsageException(
	"It seems we failed to open the browser; Perhaps you should try to ".
	"set the 'browser' config option. The command we tried to use was: ".
	$browser);
	}
	}

	return 0;
	}

	private function getBaseURI() {
	$conduit = $this->getConduit();
	$project_id = $this->getWorkingCopy()->getProjectID();
	$project_info = $this->getConduit()->callMethodSynchronous(
	'arcanist.projectinfo',
	array(
	'name' => $project_id,
	));

	$repo_phid = $project_info['repositoryPHID'];
	$repo_info = $this->getConduit()->callMethodSynchronous(
	'phid.query',
	array(
	'phids' => array($repo_phid),
	));

	$branch = $this->getArgument('branch', 'master');

	return $repo_info[$repo_phid]['uri'] . 'browse/' . $branch .'/';
	}

	private function getBrowserCommand() {
	$config = $this->getWorkingCopy()->getConfigFromAnySource('browser');
	if ($config) {
	return $config;
	}

	if (phutil_is_windows()) {
	return "start";
	}

	$candidates = array("sensible-browser", "xdg-open", "open");
	// on many Linuxes, "open" exists and is not the right program.

	foreach ($candidates as $cmd) {
	list($ret_code) = exec_manual("which %s", $cmd);
	if ($ret_code == 0) {
	return $cmd;
	}
	}

	throw new ArcanistUsageException(
	"Could not find a browser to run; Try setting the 'browser' option " .
	"using arc set-config.");
	}
	}

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