vis.js is a dynamic, browser-based visualization library
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// Update the version numbers and library sizes in index.md
var fs = require('fs'),
zlib = require('zlib');
var VIS = 'vis.js',
VIS_MIN = 'vis.min.js',
INDEX = 'index.html';
// get development size
function developmentSize(callback) {
fs.readFile(VIS, function (err, data) {
if (!err) {
var size = Math.round(data.length / 1024) + ' kB';
callback(null, size);
}
else {
callback(err);
}
});
}
// get (gzipped) production size
function productionSize(callback) {
fs.readFile(VIS_MIN, function (err, data) {
if (!err) {
zlib.gzip(data, function (err, data) {
if (!err) {
var size = Math.round(data.length / 1024) + ' kB';
callback(null, size)
}
else {
callback(err);
}
});
}
else {
callback(err);
}
});
}
// get version
function version(callback) {
fs.readFile(VIS_MIN, function (err, data) {
if (!err) {
var match = /@version\s*([\w\.-]*)/i.exec(data);
var version = undefined;
if (match) {
version = match[1];
}
callback(null, version);
}
else {
callback(err);
}
});
}
// update version and library sizes in index.md
function updateVersion(developmentSize, productionSize, version, callback) {
fs.readFile(INDEX, function (err, data) {
if (!err) {
data = String(data);
data = data.replace(/<span id="development-size">([\w\s]*)<\/span>/g,
'<span id="development-size">' + developmentSize + '</span>');
data = data.replace(/<span id="production-size">([\w\s]*)<\/span>/g,
'<span id="production-size">' + productionSize + '</span>');
data = data.replace(/<span class="version">([\w\.-]*)<\/span>/g,
'<span class="version">' + version + '</span>');
fs.writeFile(INDEX, data, callback);
}
else {
callback(err);
}
});
}
developmentSize(function (err, devSize) {
console.log('development size: ' + devSize);
productionSize(function (err, prodSize) {
console.log('production size: ' + prodSize);
version(function (err, version) {
console.log('version: ' + version);
if (devSize && prodSize && version) {
updateVersion(devSize, prodSize, version, function (err, res) {
if (err) {
console.log(err);
}
else {
console.log('done');
}
});
}
else {
}
});
});
});