80 lines
2 KiB
JavaScript
80 lines
2 KiB
JavaScript
"use strict"
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var fs = require('fs')
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, ncp = require('ncp').ncp
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, path = require('path')
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, mkdir = require('./mkdir'),
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create = require('./create')
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module.exports.copy = copy;
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module.exports.copySync = copySync;
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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 bytesRead, fdr, fdw, pos;
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fdr = fs.openSync(srcFile, 'r');
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fdw = fs.openSync(destFile, 'w');
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bytesRead = 1;
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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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return fs.closeSync(fdw);
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}
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function copy(src, dest, filter, callback) {
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if( typeof filter === "function" && !callback) {
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callback = filter;
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filter = null;
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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, {filter: filter}, 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, {filter: filter}, 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, filter) {
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filter = filter || function () { return true; };
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var stats = fs.lstatSync(src),
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destExists = fs.exists(dest),
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performCopy = false;
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if (stats.isFile()) {
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if (filter instanceof RegExp) performCopy = filter.test(src);
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else if (typeof filter === "function") performCopy = filter(src);
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if(performCopy) {
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if (!destExists) create.createFileSync(dest);
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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 (!destExists) 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(src + "/" + content, dest + "/" + content, filter);
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});
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}
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}
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