PhutilXHPASTBinary.php
246e604a070fmaster

PhutilXHPASTBinary.php
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			<?php

			final class PhutilXHPASTBinary extends Phobject {

			/**
			* The expected XHPAST version.
			*
			* This is the version that would be obtained with an up-to-date XHPAST
			* build. The //actual// XHPAST build version may vary.
			*/
			const EXPECTED_VERSION = '7.1.6';

			/**
			* The XHPAST build version.
			*
			* Cache the result from @{method:getVersion} to prevent excessive calls to
			* @{function:execx}.
			*/
			private static $version;

			/**
			* Builds XHPAST automatically.
			*
			* Attempts to build the XHPAST binary automatically.
			*
			* @return void
			*/
			public static function build() {
			if (Filesystem::binaryExists('gmake')) {
			$command = 'gmake';
			} else {
			$command = 'make';
			}

			$root = phutil_get_library_root('arcanist');
			$path = Filesystem::resolvePath($root.'/../support/xhpast');

			// Run the build.
			execx(
			'%s -C %s %Ls',
			$command,
			$path,
			array('SKIP_PARSER=1', 'SKIP_SCANNER=1', 'clean', 'all', 'install'));

			self::$version = null;

			// Test the binary.
			if (!self::isAvailable()) {
			throw new Exception(pht('%s is broken.', 'xhpast'));
			}
			}

			/**
			* Returns human-readable instructions for building XHPAST.
			*
			* @return string
			*/
			public static function getBuildInstructions() {
			$root = phutil_get_library_root('arcanist');
			$make = Filesystem::resolvePath($root.'/../support/xhpast/build-xhpast.php');

			return phutil_console_format(
			"%s:\n\n \$ %s\n",
			pht(
			"Your version of '%s' is unbuilt or out of date. Run this ".
			"script to build it.",
			'xhpast'),
			$make);
			}

			/**
			* Constructs an @{class:ExecFuture} for XHPAST.
			*
			* @param wild Data to pass to the future.
			* @return ExecFuture
			*/
			public static function getParserFuture($data) {
			if (!self::isAvailable()) {
			try {
			// Try to build XHPAST automatically. If we can't then just ask the
			// user to build it themselves.
			self::build();
			} catch (CommandException $ex) {
			throw new PhutilProxyException(self::getBuildInstructions(), $ex);
			}
			}
			$future = new ExecFuture('%s', self::getPath());
			$future->write($data);

			return $future;
			}

			/**
			* Returns the path to the XHPAST binary.
			*
			* @return string
			*/
			public static function getPath() {
			if (phutil_is_windows()) {
			return dirname(__FILE__).'\\xhpast.exe';
			}
			return dirname(__FILE__).'/xhpast';
			}

			/**
			* Returns the XHPAST version.
			*
			* @return string
			*/
			public static function getVersion() {
			if (self::$version === null) {
			$bin = self::getPath();

			if (Filesystem::pathExists($bin)) {
			list($err, $stdout) = exec_manual('%s --version', $bin);
			if (!$err) {
			self::$version = trim($stdout);
			}
			}
			}

			return self::$version;
			}

			/**
			* Checks if XHPAST is built and up-to-date.
			*
			* @return bool
			*/
			public static function isAvailable() {
			return self::getVersion() == self::EXPECTED_VERSION;
			}

			}

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rARC/src/parser/xhpast/bin/PhutilXHPASTBinary.php246e604a070fmaster

PhutilXHPASTBinary.phpView Options

Owner Packages

rARC/src/parser/xhpast/bin/PhutilXHPASTBinary.php
246e604a070fmaster

PhutilXHPASTBinary.php
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