ethstats-server/web-app/.meteor/local/build/programs/server/boot.js
2015-08-14 19:22:53 +02:00

264 lines
9.3 KiB
JavaScript

var Fiber = require("fibers");
var fs = require("fs");
var path = require("path");
var Future = require("fibers/future");
var _ = require('underscore');
var sourcemap_support = require('source-map-support');
var bootUtils = require('./boot-utils.js');
var files = require('./mini-files.js');
// This code is duplicated in tools/main.js.
var MIN_NODE_VERSION = 'v0.10.36';
if (require('semver').lt(process.version, MIN_NODE_VERSION)) {
process.stderr.write(
'Meteor requires Node ' + MIN_NODE_VERSION + ' or later.\n');
process.exit(1);
}
// read our control files
var serverJsonPath = path.resolve(process.argv[2]);
var serverDir = path.dirname(serverJsonPath);
var serverJson = JSON.parse(fs.readFileSync(serverJsonPath, 'utf8'));
var configJson =
JSON.parse(fs.readFileSync(path.resolve(serverDir, 'config.json'), 'utf8'));
// Set up environment
__meteor_bootstrap__ = {
startupHooks: [],
serverDir: serverDir,
configJson: configJson };
__meteor_runtime_config__ = { meteorRelease: configJson.meteorRelease };
// connect (and some other NPM modules) use $NODE_ENV to make some decisions;
// eg, if $NODE_ENV is not production, they send stack traces on error. connect
// considers 'development' to be the default mode, but that's less safe than
// assuming 'production' to be the default. If you really want development mode,
// set it in your wrapper script (eg, run-app.js).
if (!process.env.NODE_ENV)
process.env.NODE_ENV = 'production';
// Map from load path to its source map.
var parsedSourceMaps = {};
// Read all the source maps into memory once.
_.each(serverJson.load, function (fileInfo) {
if (fileInfo.sourceMap) {
var rawSourceMap = fs.readFileSync(
path.resolve(serverDir, fileInfo.sourceMap), 'utf8');
// Parse the source map only once, not each time it's needed. Also remove
// the anti-XSSI header if it's there.
var parsedSourceMap = JSON.parse(rawSourceMap.replace(/^\)\]\}'/, ''));
// source-map-support doesn't ever look at the sourcesContent field, so
// there's no point in keeping it in memory.
delete parsedSourceMap.sourcesContent;
var url;
if (fileInfo.sourceMapRoot) {
// Add the specified root to any root that may be in the file.
parsedSourceMap.sourceRoot = path.join(
fileInfo.sourceMapRoot, parsedSourceMap.sourceRoot || '');
}
parsedSourceMaps[path.resolve(__dirname, fileInfo.path)] = parsedSourceMap;
}
});
var retrieveSourceMap = function (pathForSourceMap) {
if (_.has(parsedSourceMaps, pathForSourceMap))
return { map: parsedSourceMaps[pathForSourceMap] };
return null;
};
sourcemap_support.install({
// Use the source maps specified in program.json instead of parsing source
// code for them.
retrieveSourceMap: retrieveSourceMap,
// For now, don't fix the source line in uncaught exceptions, because we
// haven't fixed handleUncaughtExceptions in source-map-support to properly
// locate the source files.
handleUncaughtExceptions: false
});
// Only enabled by default in development.
if (process.env.METEOR_SHELL_DIR) {
require('./shell-server.js').listen(process.env.METEOR_SHELL_DIR);
}
// As a replacement to the old keepalives mechanism, check for a running
// parent every few seconds. Exit if the parent is not running.
//
// Two caveats to this strategy:
// * Doesn't catch the case where the parent is CPU-hogging (but maybe we
// don't want to catch that case anyway, since the bundler not yielding
// is what caused #2536).
// * Could be fooled by pid re-use, i.e. if another process comes up and
// takes the parent process's place before the child process dies.
var startCheckForLiveParent = function (parentPid) {
if (parentPid) {
if (! bootUtils.validPid(parentPid)) {
console.error("METEOR_PARENT_PID must be a valid process ID.");
process.exit(1);
}
setInterval(function () {
try {
process.kill(parentPid, 0);
} catch (err) {
console.error("Parent process is dead! Exiting.");
process.exit(1);
}
}, 3000);
}
};
Fiber(function () {
_.each(serverJson.load, function (fileInfo) {
var code = fs.readFileSync(path.resolve(serverDir, fileInfo.path));
var Npm = {
/**
* @summary Require a package that was specified using
* `Npm.depends()`.
* @param {String} name The name of the package to require.
* @locus Server
* @memberOf Npm
*/
require: function (name) {
if (! fileInfo.node_modules) {
return require(name);
}
var nodeModuleBase = path.resolve(serverDir,
files.convertToOSPath(fileInfo.node_modules));
var nodeModuleDir = path.resolve(nodeModuleBase, name);
// If the user does `Npm.require('foo/bar')`, then we should resolve to
// the package's node modules if `foo` was one of the modules we
// installed. (`foo/bar` might be implemented as `foo/bar.js` so we
// can't just naively see if all of nodeModuleDir exists.
if (fs.existsSync(path.resolve(nodeModuleBase, name.split("/")[0]))) {
return require(nodeModuleDir);
}
try {
return require(name);
} catch (e) {
// Try to guess the package name so we can print a nice
// error message
// fileInfo.path is a standard path, use files.pathSep
var filePathParts = fileInfo.path.split(files.pathSep);
var packageName = filePathParts[1].replace(/\.js$/, '');
// XXX better message
throw new Error(
"Can't find npm module '" + name +
"'. Did you forget to call 'Npm.depends' in package.js " +
"within the '" + packageName + "' package?");
}
}
};
var getAsset = function (assetPath, encoding, callback) {
var fut;
if (! callback) {
fut = new Future();
callback = fut.resolver();
}
// This assumes that we've already loaded the meteor package, so meteor
// itself (and weird special cases like js-analyze) can't call
// Assets.get*. (We could change this function so that it doesn't call
// bindEnvironment if you don't pass a callback if we need to.)
var _callback = Package.meteor.Meteor.bindEnvironment(function (err, result) {
if (result && ! encoding)
// Sadly, this copies in Node 0.10.
result = new Uint8Array(result);
callback(err, result);
}, function (e) {
console.log("Exception in callback of getAsset", e.stack);
});
// Convert a DOS-style path to Unix-style in case the application code was
// written on Windows.
assetPath = files.convertToStandardPath(assetPath);
if (!fileInfo.assets || !_.has(fileInfo.assets, assetPath)) {
_callback(new Error("Unknown asset: " + assetPath));
} else {
var filePath = path.join(serverDir, fileInfo.assets[assetPath]);
fs.readFile(files.convertToOSPath(filePath), encoding, _callback);
}
if (fut)
return fut.wait();
};
var Assets = {
getText: function (assetPath, callback) {
return getAsset(assetPath, "utf8", callback);
},
getBinary: function (assetPath, callback) {
return getAsset(assetPath, undefined, callback);
}
};
// \n is necessary in case final line is a //-comment
var wrapped = "(function(Npm, Assets){" + code + "\n})";
// It is safer to use the absolute path when source map is present as
// different tooling, such as node-inspector, can get confused on relative
// urls.
// fileInfo.path is a standard path, convert it to OS path to join with
// __dirname
var fileInfoOSPath = files.convertToOSPath(fileInfo.path);
var absoluteFilePath = path.resolve(__dirname, fileInfoOSPath);
var scriptPath =
parsedSourceMaps[absoluteFilePath] ? absoluteFilePath : fileInfoOSPath;
// The final 'true' is an undocumented argument to runIn[Foo]Context that
// causes it to print out a descriptive error message on parse error. It's
// what require() uses to generate its errors.
var func = require('vm').runInThisContext(wrapped, scriptPath, true);
func.call(global, Npm, Assets); // Coffeescript
});
// run the user startup hooks. other calls to startup() during this can still
// add hooks to the end.
while (__meteor_bootstrap__.startupHooks.length) {
var hook = __meteor_bootstrap__.startupHooks.shift();
hook();
}
// Setting this to null tells Meteor.startup to call hooks immediately.
__meteor_bootstrap__.startupHooks = null;
// find and run main()
// XXX hack. we should know the package that contains main.
var mains = [];
var globalMain;
if ('main' in global) {
mains.push(main);
globalMain = main;
}
typeof Package !== 'undefined' && _.each(Package, function (p, n) {
if ('main' in p && p.main !== globalMain) {
mains.push(p.main);
}
});
if (! mains.length) {
process.stderr.write("Program has no main() function.\n");
process.exit(1);
}
if (mains.length > 1) {
process.stderr.write("Program has more than one main() function?\n");
process.exit(1);
}
var exitCode = mains[0].call({}, process.argv.slice(3));
// XXX hack, needs a better way to keep alive
if (exitCode !== 'DAEMON')
process.exit(exitCode);
if (process.env.METEOR_PARENT_PID) {
startCheckForLiveParent(process.env.METEOR_PARENT_PID);
}
}).run();