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// Copyright (c) 2016, Matt Godbolt & Rubén Rincón
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
const
Queue = require('promise-queue'),
child_process = require('child_process'),
FromConfig = require('./cache/from-config'),
BaseCache = require('./cache/base'),
logger = require('./logger').logger,
_ = require('underscore-node'),
Raven = require('raven');
Queue.configure(Promise);
class CompilationEnvironment {
constructor(ceProps, compilerPropsL, doCache) {
this.ceProps = ceProps;
this.compilerPropsL = compilerPropsL;
this.okOptions = new RegExp(ceProps('optionsWhitelistRe', '.*'));
this.badOptions = new RegExp(ceProps('optionsBlacklistRe', '(?!)'));
this.cache = FromConfig.create(doCache === undefined || doCache ? ceProps('cacheConfig') : "");
this.compileQueue = new Queue(ceProps("maxConcurrentCompiles", 1), Infinity);
this.reportCacheEvery = ceProps("cacheReportEvery", 100);
this.multiarch = null;
try {
const multi = child_process.execSync("gcc -print-multiarch").toString().trim();
if (multi) {
logger.info(`Multiarch: ${multi}`);
this.multiarch = multi;
} else {
logger.info("No multiarch");
}
} catch (err) {
logger.warn(`Unable to get multiarch: ${err}`);
}
}
getEnv(needsMulti) {
const env = {
LD_LIBRARY_PATH: process.env.LD_LIBRARY_PATH,
PATH: process.env.PATH,
HOME: process.env.HOME
};
if (needsMulti && this.multiarch) {
env.LIBRARY_PATH = '/usr/lib/' + this.multiarch;
env.C_INCLUDE_PATH = '/usr/include/' + this.multiarch;
env.CPLUS_INCLUDE_PATH = '/usr/include/' + this.multiarch;
}
return env;
}
cacheGet(object) {
const key = BaseCache.hash(object);
return this.cache.get(key).then((result) => {
if ((this.cache.gets % this.reportCacheEvery) === 0) {
this.cache.report();
}
if (!result.hit) return null;
return JSON.parse(result.data);
});
}
cachePut(object, result, creator) {
const key = BaseCache.hash(object);
return this.cache.put(key, JSON.stringify(result), creator);
}
enqueue(job) {
const wrappedJob = function () {
try {
return job();
} catch (e) {
if (e.stack) logger.info(e.stack);
logger.error(`Caught promise exception ${e}`);
Raven.captureException(e);
return Promise.resolve(null);
}
};
return this.compileQueue.add(wrappedJob);
}
isBusy() {
return this.compileQueue.getPendingLength() > 0 || this.compileQueue.getQueueLength() > 0;
}
findBadOptions(options) {
return _.filter(options, option => !option.match(this.okOptions) || option.match(this.badOptions), this);
}
}
module.exports = CompilationEnvironment;