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walker.js
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walker.js
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var fs = require('fs'),
path = require('path'),
util = require('util'),
rjson = require('rjson'),
_ = require('underscore');
var start = Date.now();
function xDirTree(fileName){
try {
var stats = fs.lstatSync(fileName);
}
catch (err) {
console.log(err);
return {
path : fileName,
name: path.basename(fileName),
size : 0
};
}
var info = {
path : fileName,
name: path.basename(fileName),
size : stats.size
};
if(stats.isDirectory()){
info.nodes = [];
try {
var children = fs.readdirSync(fileName);
}
catch (err) {
console.log(err);
return info;
}
_.each(children, function(child){
var separator = fileName[fileName.length - 1] !== "/" ? "/" : "";
var childInfo = xDirTree(fileName + separator + child);
info.size += childInfo.size;
info.nodes.push(childInfo);
});
}
return info;
}
var tree = xDirTree(process.argv[2]);
console.log("parent size : " + (tree.size / (1024*1024*1024)) + " GBs");
console.log("done creating tree in mem :" + (Date.now() - start)/1000 + " seconds") ;
fs.writeFileSync("./public/xtree.json", JSON.stringify(tree));
console.log("done writing tree to file :" +(Date.now() - start)/1000 + " seconds") ;