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months-rename.js
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months-rename.js
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const fs = require('fs');
const path = require('path');
const Confirm = require('prompt-confirm');
const monthNames = new Map([
['Jan', '.01.'],
['Feb', '.02.'],
['Mar', '.03.'],
['Apr', '.04.'],
['May', '.05.'],
['Jun', '.06.'],
['Jul', '.07.'],
['Aug', '.08.'],
['Sep', '.09.'],
['Oct', '.10.'],
['Nov', '.11.'],
['Dec', '.12.'],
]);
const dirname = process.argv[2] || process.cwd();
function renameFiles(filenamesMap, filesPath = '') {
filenamesMap.forEach((newFilename, filename) => {
fs.rename(filesPath + filename, filesPath + newFilename, (err) => {
if (err) console.log(`ERROR: ${err}`);
});
});
}
fs.readdir(dirname, (err, files) => {
if (err) {
console.error('Could not access the directory.', err);
process.exit(1);
}
const fileRenamingMap = new Map();
console.log(`Found ${files.length} files in folder`);
files.forEach((filename) => {
// console.log(filename);
let newFilename = filename;
monthNames.forEach((number, month) => {
if (newFilename.includes(month)) {
newFilename = newFilename.replace(month, number);
}
});
if (filename !== newFilename) {
fileRenamingMap.set(filename, newFilename);
}
});
if (fileRenamingMap.size) {
console.log(`Found ${fileRenamingMap.size} files to be renamed:`);
fileRenamingMap.forEach(
(newFilename, filename) => console.log(`${filename} => ${newFilename}`),
);
new Confirm('Proceed?').ask((answer) => {
if (answer) {
let filesPath = dirname;
if (dirname.slice(-1) !== path.sep) {
filesPath += path.sep;
}
renameFiles(fileRenamingMap, filesPath);
}
});
} else {
console.log('No files found matching rename criterias');
}
});