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var fs = require('fs');
module.exports = function (grunt) {
var ZONE_TAB = '/usr/share/zoneinfo/zone.tab';
grunt.registerTask('zones', 'Run the unit tests in different timezones.', function () {
var done = this.async();
getAllTimezones(function (err, zones) {
if (err != null) {
throw err;
}
(function iterator(i) {
if (i >= zones.length) {
return done();
}
runTestsInZone(zones[i], function (err) {
if (err != null) {
throw err;
}
iterator(i + 1);
});
}(0));
});
});
function getAllTimezones (callback) {
fs.readFile(ZONE_TAB, 'ascii', function (err, content) {
if (err != null) {
callback(err);
}
callback(null, content.split(/\r\n|\r|\n/)
// remove empty and commented lines
.filter(function (line) {
return line && !/^#/.test(line);
})
// country code TAB coordinates TAB timezone
.map(function (line) {
return line.split('\t')[2];
}));
});
}
function runTestsInZone (zone, next) {
grunt.log.ok('Running tests in zone ' + zone);
grunt.util.spawn({
cmd: 'grunt',
opts: {
env: {
'PATH': process.env.PATH,
'TZ': zone
}
},
args: ['--no-color', 'nodeunit']
}, function (err, result, code) {
if (code !== 0) {
grunt.log.error(result.stdout.split(/\r\n|\r|\n/)
.filter(function (line) {
return /^(>>|Warning:|$)/.test(line);
})
.map(function (line) {
return (line.substr(0, 3) === '>> ' ? line.substr(3) : line);
})
.join('\n'));
}
next();
});
}
};
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