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Gruntfile.js
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module.exports = function (grunt) {
grunt.initConfig({
pkg: grunt.file.readJSON('package.json'),
jshint: {
all: ['Intl.js']
},
uglify: {
options: {
preserveComments: 'some'
},
build: {
files: {
'Intl.min.js': ['Intl.js']
}
}
}
});
grunt.loadNpmTasks('grunt-contrib-jshint');
grunt.loadNpmTasks('grunt-contrib-uglify');
grunt.registerTask('compile-data', 'Compile the data into the polyfill', compileData);
grunt.registerTask('default', function () {
grunt.task.run('jshint');
grunt.task.run('uglify');
if (grunt.option('complete'))
grunt.task.run('compile-data');
});
grunt.registerTask('update-tests', 'refreshes the tests found in tests/test262', updateTests);
/**
* Refreshes the tests found in tests/test262.
*/
function updateTests() {
var gruntTaskDone = this.async(),
LIBS = {
async: require('async'),
fs: require('fs'),
http: require('http'),
path: require('path'),
vm: require('vm')
},
URL_BASE = 'http://hg.ecmascript.org',
testsURL,
tempDir,
testsTarball,
testsDir;
LIBS.async.series([
function(asyncTaskDone) {
var resErr,
resBody = '';
grunt.log.writeln('looking for tests tarball...');
/*
// DEBUGGING
testsURL = 'http://hg.ecmascript.org/tests/test262/archive/d067d2f0ca30.tar.gz';
grunt.log.ok('tests URL: ' + testsURL);
asyncTaskDone();
return;
*/
LIBS.http.get(URL_BASE + '/tests/test262/file/', function(res) {
if (200 !== res.statusCode) {
asyncTaskDone(new Error('failed to GET ' + URL_BASE + '/tests/test262/file/'));
return;
}
res.on('data', function(data) {
resBody += data.toString();
});
res.on('error', function(err) {
resErr = err;
});
res.on('end', function() {
var matches;
matches = resBody.match(/<a href="(\/tests\/test262\/archive\/[^.]+.tar.gz)">gz<\/a>/);
testsURL = matches[1];
if (!testsURL) {
asyncTaskDone(new Error('failed to find tar.gz of tests'));
return;
}
if ('/' === testsURL[0]) {
testsURL = URL_BASE + testsURL;
}
grunt.log.ok('tests URL: ' + testsURL);
asyncTaskDone(resErr);
});
}).end();
},
function(asyncTaskDone) {
grunt.log.writeln('making temporary directory...');
/*
// DEBUGGING
tempDir = '/tmp/grunt.o4xlDE3o';
grunt.log.ok('temporary directory: ' + tempDir);
asyncTaskDone();
return;
*/
grunt.util.spawn({
cmd: 'mktemp',
args: ['-d', '/tmp/grunt.XXXXXXXX']
}, function(err, results) {
tempDir = results.stdout;
grunt.log.ok('temporary directory: ' + tempDir);
asyncTaskDone(err);
});
},
function(asyncTaskDone) {
var resErr,
resBody = new Buffer(0),
reportEveryBytes = 300000,
reportBytes = 0;
grunt.log.writeln('downloading tests tarball...');
/*
// DEBUGGING
testsTarball = tempDir + '/d067d2f0ca30.tar.gz';
grunt.log.ok('tests tarball: ' + testsTarball);
asyncTaskDone();
return;
*/
LIBS.http.get(testsURL, function(res) {
if (200 !== res.statusCode) {
asyncTaskDone(new Error('failed to GET ' + testsUR));
return;
}
res.on('data', function(data) {
// We need to use the Buffer class to safely handle binary
// data (octet streams). Alas, it's not resizable so we
// need to reallocate as we go along.
var newBuffer = Buffer(resBody.length + data.length);
resBody.copy(newBuffer, 0);
data.copy(newBuffer, resBody.length);
resBody = newBuffer;
reportBytes += data.length;
if (reportBytes >= reportEveryBytes) {
grunt.log.ok('got ' + resBody.length + ' bytes');
reportBytes = 0;
}
});
res.on('error', function(err) {
resErr = err;
});
res.on('end', function() {
testsTarball = LIBS.path.resolve(tempDir, LIBS.path.basename(testsURL));
grunt.file.write(testsTarball, resBody.toString('binary'), {encoding: 'binary'});
grunt.log.ok('tests tarball: ' + testsTarball);
asyncTaskDone(resErr);
});
}).end();
},
function(asyncTaskDone) {
grunt.log.writeln('expanding tests tarball...');
/*
// DEBUGGING
testsDir = tempDir + '/test262-d067d2f0ca30';
grunt.log.ok('tests directory: ' + testsDir);
asyncTaskDone();
return;
*/
grunt.util.spawn({
cmd: 'tar',
args: ['xfz', LIBS.path.basename(testsTarball)],
opts: {
cwd: tempDir
}
}, function(err, results) {
testsDir = LIBS.path.resolve(tempDir, 'test262-' + LIBS.path.basename(testsTarball).split('.')[0]);
grunt.log.ok('tests directory: ' + testsDir);
asyncTaskDone(err);
});
},
function(asyncTaskDone) {
grunt.log.writeln('clearing old tests/test262...');
var doomed = grunt.file.expand(__dirname + '/tests/test262/*');
doomed.forEach(function(path) {
grunt.file.delete(path);
});
grunt.log.ok('done');
asyncTaskDone();
},
function(asyncTaskDone) {
grunt.log.writeln('copying from tarball to tests/test262...');
grunt.file.copy(
LIBS.path.resolve(testsDir, 'LICENSE'),
LIBS.path.resolve(__dirname, 'tests/test262/LICENSE')
);
['tools', 'test'].forEach(function(dir) {
grunt.log.ok(dir);
var files = grunt.file.expand(
LIBS.path.resolve(testsDir, dir) + '/**'
)
files.forEach(function(srcPath) {
if (! grunt.file.isFile(srcPath)) {
return;
}
var destPath = srcPath.replace(testsDir, LIBS.path.resolve(__dirname, 'tests/test262'));
grunt.file.copy(srcPath, destPath);
});
});
grunt.log.ok('done');
asyncTaskDone();
},
function(asyncTaskDone) {
grunt.log.writeln('removing `Collator` tests...');
// fixup constructor lists
[ 'tests/test262/test/harness/testIntl.js',
'tests/test262/test/suite/intl402/ch08/8.0/8.0_L15.js'
].forEach(function(path) {
grunt.log.ok('adjusting ' + path);
var contents = grunt.file.read(path);
contents = contents.replace(/(\[)("Collator",)/, '$1/*$2*/');
grunt.file.write(path, contents);
});
// these are just trouble
[ 'tests/test262/test/suite/intl402/ch09/9.2/9.2.5_11_g_ii_2.js',
'tests/test262/test/suite/intl402/ch10',
'tests/test262/test/suite/intl402/ch13/13.1'
].forEach(function(path) {
grunt.log.ok('removing ' + path);
grunt.file.delete(path);
});
asyncTaskDone();
},
function(asyncTaskDone) {
grunt.log.writeln('rebuilding tests/test262/pages...');
var path = 'tests/build-pages.js',
content = grunt.file.read(path),
sandbox = {
__dirname: LIBS.path.join(__dirname, 'tests'),
require: require,
console: {
log: function(msg) {
grunt.log.ok(msg);
}
}
};
try {
LIBS.vm.runInNewContext(content, sandbox, path);
} catch (err) {
asyncTaskDone(err);
}
grunt.log.ok('done');
asyncTaskDone();
},
function(asyncTaskDone) {
grunt.log.writeln('cleaning up temporary directory...');
grunt.util.spawn({
cmd: 'rm',
args: ['-rf', tempDir]
}, function(err) {
asyncTaskDone(err);
});
}
], function(err) {
if (err) {
grunt.log.error(err.message);
}
gruntTaskDone(err);
});
}
/**
* Compiles all JSON data into the polyfill and saves it as Intl.complete.js
*/
function compileData() {
var
locData = {},
objStrs = {},
objs = [],
prims = [],
valCount = 0,
objCount = 0,
fileData = '',
fs = require('fs'),
locales = fs.readdirSync('locale-data/json/'),
Intl = String(fs.readFileSync('Intl.js'));
fileData += Intl.slice(0, Intl.lastIndexOf('return Intl;')) + '(function () {';
locales.forEach(function (file) {
locData[file.slice(0, file.indexOf('.'))] = JSON.parse(fs.readFileSync('locale-data/json/' + file), reviver);
});
function reviver (k, v) {
var idx;
if (k === 'locale')
return undefined;
else if (typeof v === 'string') {
idx = prims.indexOf(v);
valCount++;
if (idx === -1)
idx += prims.push(v);
return '###prims['+ idx +']###';
}
else if (typeof v === 'object' && v !== null) {
var str = JSON.stringify(v);
objCount++;
if (objStrs.hasOwnProperty(str))
return objStrs[str];
else {
// We need to make sure this object is not added to the same
// array as an object it references (and we need to check
// this recursively)
var
depth,
objDepths = [ 0 ];
for (var key in v) {
if (typeof v[key] === 'string' && (depth = v[key].match(/^###objs\[(\d+)/)))
objDepths.push(+depth[1] + 1);
}
depth = Math.max.apply(Math, objDepths);
if (!Array.isArray(objs[depth]))
objs[depth] = [];
idx = objs[depth].push(v) - 1;
objStrs[str] = '###objs['+ depth +']['+ idx +']###';
return objStrs[str];
}
}
}
fileData += 'var a='+ JSON.stringify(prims) +',b=[];';
objs.forEach(function (val, idx) {
var ref = JSON.stringify(val).replace(/"###(objs|prims)(\[[^#]+)###"/g, replacer);
fileData += 'b['+ idx +']='+ ref +';';
});
for (var k in locData)
fileData += 'addLocaleData('+ locData[k].replace(/###(objs|prims)(\[[^#]+)###/, replacer) +', "'+ k +'");';
fileData += '})();\n' + Intl.slice(Intl.lastIndexOf('return Intl;'));
fs.writeFileSync('Intl.complete.js', fileData);
grunt.log.writeln('Total number of reused strings is ' + prims.length + ' (reduced from ' + valCount + ')');
grunt.log.writeln('Total number of reused objects is ' + Object.keys(objStrs).length + ' (reduced from ' + objCount + ')');
}
function replacer($0, type, loc) {
return (type === 'prims' ? 'a' : 'b') + loc;
}
};