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libphutil/src/parser/xhpast/bin/xhpast_parse.php
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xhpast_parse.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.
*/
/**
* @group xhpast
*/
function xhpast_is_available() {
static $available;
if ($available === null) {
$available = false;
$bin = xhpast_get_binary_path();
if (Filesystem::pathExists($bin)) {
list($err, $stdout) = exec_manual('%s --version', $bin);
if (!$err) {
$version = trim($stdout);
if ($version === "xhpast version 0.62") {
$available = true;
}
}
}
}
return $available;
}
/**
* @group xhpast
*/
function xhpast_get_binary_path() {
return dirname(__FILE__).'/xhpast';
}
/**
* @group xhpast
*/
function xhpast_get_build_instructions() {
$root = phutil_get_library_root('phutil');
$make = $root.'/../scripts/build_xhpast.sh';
$make = Filesystem::resolvePath($make);
return <<<EOHELP
Your version of 'xhpast' is unbuilt or out of date. Run this script to build it:
\$ {$make}
EOHELP;
}
/**
* @group xhpast
*/
function xhpast_get_parser_future($data) {
if (!xhpast_is_available()) {
throw new Exception(xhpast_get_build_instructions());
}
$future = new ExecFuture('%s', xhpast_get_binary_path());
$future->write($data);
return $future;
}
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