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100 lines
2.6 KiB
JavaScript
100 lines
2.6 KiB
JavaScript
var fs = require('graceful-fs')
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var path = require('path')
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var ncp = require('./_copy').ncp
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var mkdir = require('./mkdir')
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var create = require('./create')
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var BUF_LENGTH = 64 * 1024
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var _buff = new Buffer(BUF_LENGTH)
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var copyFileSync = function(srcFile, destFile) {
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var fdr = fs.openSync(srcFile, 'r')
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var stat = fs.fstatSync(fdr)
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var fdw = fs.openSync(destFile, 'w', stat.mode)
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var bytesRead = 1
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var pos = 0
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while (bytesRead > 0) {
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bytesRead = fs.readSync(fdr, _buff, 0, BUF_LENGTH, pos)
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fs.writeSync(fdw, _buff, 0, bytesRead)
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pos += bytesRead
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}
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fs.closeSync(fdr)
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fs.closeSync(fdw)
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}
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function copy(src, dest, options, callback) {
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if( typeof options == "function" && !callback) {
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callback = options
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options = {}
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} else if (typeof options == "function" || options instanceof RegExp) {
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options = {filter: options}
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}
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callback = callback || function(){}
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fs.lstat(src, function(err, stats) {
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if (err) return callback(err)
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var dir = null
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if (stats.isDirectory()) {
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var parts = dest.split(path.sep)
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parts.pop()
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dir = parts.join(path.sep)
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} else {
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dir = path.dirname(dest)
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}
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fs.exists(dir, function(dirExists) {
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if (dirExists) return ncp(src, dest, options, callback)
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mkdir.mkdirs(dir, function(err) {
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if (err) return callback(err)
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ncp(src, dest, options, callback)
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})
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})
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})
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}
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function copySync(src, dest, options) {
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if (typeof options == "function" || options instanceof RegExp) {
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options = {filter: options}
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}
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options = options || {}
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options.recursive = !!options.recursive
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options.filter = options.filter || function() { return true }
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var stats = options.recursive ? fs.lstatSync(src) : fs.statSync(src)
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var destFolder = path.dirname(dest)
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var destFolderExists = fs.existsSync(destFolder)
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var performCopy = false
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if (stats.isFile()) {
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if (options.filter instanceof RegExp) performCopy = options.filter.test(src)
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else if (typeof options.filter == "function") performCopy = options.filter(src)
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if (performCopy) {
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if (!destFolderExists) mkdir.mkdirsSync(destFolder)
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copyFileSync(src, dest)
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}
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}
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else if (stats.isDirectory()) {
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if (!fs.existsSync(dest)) mkdir.mkdirsSync(dest)
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var contents = fs.readdirSync(src)
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contents.forEach(function(content) {
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copySync(path.join(src, content), path.join(dest, content), {filter: options.filter, recursive: true})
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})
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}
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else if (options.recursive && stats.isSymbolicLink()) {
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var srcPath = fs.readlinkSync(src)
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fs.symlinkSync(srcPath, dest)
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}
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}
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module.exports = {
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copy: copy,
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copySync: copySync
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}
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