documentit/node_modules/fs-extra/lib/copy/copy.js

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2018-01-05 18:48:13 +00:00
var fs = require('graceful-fs')
var path = require('path')
var ncp = require('./ncp')
var mkdir = require('../mkdirs')
function copy (src, dest, options, callback) {
if (typeof options === 'function' && !callback) {
callback = options
options = {}
} else if (typeof options === 'function' || options instanceof RegExp) {
options = {filter: options}
}
callback = callback || function () {}
options = options || {}
// don't allow src and dest to be the same
var basePath = process.cwd()
var currentPath = path.resolve(basePath, src)
var targetPath = path.resolve(basePath, dest)
if (currentPath === targetPath) return callback(new Error('Source and destination must not be the same.'))
fs.lstat(src, function (err, stats) {
if (err) return callback(err)
var dir = null
if (stats.isDirectory()) {
var parts = dest.split(path.sep)
parts.pop()
dir = parts.join(path.sep)
} else {
dir = path.dirname(dest)
}
fs.exists(dir, function (dirExists) {
if (dirExists) return ncp(src, dest, options, callback)
mkdir.mkdirs(dir, function (err) {
if (err) return callback(err)
ncp(src, dest, options, callback)
})
})
})
}
module.exports = copy