I'm trying to get the size of the folder that is in my project, the folder is called Testes , and in my file server.js I'm using the following method:
fs.stat('/Testes', function(err,stats){
if(err) return console.log(err);
console.log(null, stats.size);
})
But it's always returning me null, 0 and not the actual size of the folder, have I forgotten anything?
This in Node.js is not very simple. There are other platforms that are "more specialized" in the files part.
But the idea is to read a board and every entry in that board adds up to the size of that entry. If the entry is a directory, run the same code recursively.
It would look like this:
const fs = require('fs');
const path = require('path');
const folder = process.argv[2];
function getAllFiles(folder) {
return new Promise((resolve, reject) => {
fs.readdir(folder, (err, files) => {
if (err) return reject(err);
const filesWithPath = files.map(f => path.join(folder, f));
Promise.all(filesWithPath.map(getFileSize)).then(sizes => {
const sum = sizes.reduce(addValues, 0);
resolve(sum);
});
});
});
}
function getFileSize(file) {
return new Promise((resolve, reject) => {
fs.stat(file, (err, stat) => {
if (err) return reject(err);
if (stat.isDirectory()) getAllFiles(file).then(resolve);
else resolve(stat.size);
});
});
}
function addValues(sum, val) {
return sum + val;
}
function formatBytes(bytes) {
if (bytes < 1024) return bytes + " Bytes";
else if (bytes < 1048576) return (bytes / 1024).toFixed(3) + " Kb";
else if (bytes < 1073741824) return (bytes / 1048576).toFixed(3) + " Mb";
else return (bytes / 1073741824).toFixed(3) + " GB";
}
getAllFiles(folder)
.then(sum => {
console.log('O tamanho da diretoria "${folder}" é', formatBytes(sum));
})
.catch(e => console.log(e)); And to use you can do (assuming getSize.js is the filename with the above script):
node getSize.js ./lib