'use strict';

var path = require('path');

var fs = require('fs');

function copyAndReplace(src, dest, replacements) {

if (fs.lstatSync(src).isDirectory()) {

if (!fs.existsSync(dest)) {

fs.mkdirSync(dest);

}

} else {

var content = fs.readFileSync(src, 'utf8');

Object.keys(replacements).forEach(function(regex) {

content = content.replace(new RegExp(regex, 'g'), replacements[regex]);

});

fs.writeFileSync(dest, content);

}

}

function walk(current) {

if (!fs.lstatSync(current).isDirectory()) {

return [current];

}

var files = fs.readdirSync(current).map(function(child) {

child = path.join(current, child);

return walk(child);

});

return [].concat.apply([current], files);

}

function validatePackageName(name) {

if (!name.match(/^[$A-Z_][0-9A-Z_$]*$/i)) {

console.error(

'"%s" is not a valid name for a project. Please use a valid identifier ' +

'name (alphanumeric).',

name

);

process.exit(1);

}

}

module.exports = {

copyAndReplace: copyAndReplace,

walk: walk,

validatePackageName: validatePackageName

};