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directory.js
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directory.js
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var Q = require('q'),
fs = require('fs'),
fsExtra = require('fs-extra'),
glob = require('glob'),
path = require('path');
var directory = module.exports = {};
/**
* create directory in specify path or name
* @param {String} path directory path
* @return {Q.Promise}
*/
directory.createDirectory = function(path){
var pathArray = getPathArray(path);
var def = Q.defer(), results = [];
def.resolve();
var promise = def.promise;
pathArray.forEach(function(path){
promise = promise.then(function(){
return createPath(path);
}).then(function(str){
results.push(str);
});
});
return promise.then(function(){
return results;
})
function createPath(curPath){
var def = Q.defer();
directory.isExists(curPath)
.then(function(exists){
if(exists){
def.resolve(curPath);
}else{
fs.mkdir(curPath, function(err){
if(err){
def.reject(err);
}else{
def.resolve(curPath);
}
});
}
});
return def.promise;
}
}
/**
* get every path layer of a specific path
* @example
* c:/www/php/doc will return array
* ["c:","c:/www","c:/www/php","c:/www/php/doc"]
* /www/php/doc will return
* [cwd+"www",cwd+"www/php",cwd+"www/php/doc"]
* @param {String} currPath
* @return {Q.Promise}
*/
function getPathArray(currPath){
var cwd = directory.getCurrentDirecotry();
currPath = path.normalize(currPath);
var newPath = path.resolve(cwd, currPath);
var pathItems = [], result = [];
result = getPathList(currPath, false);
return result;
function getPathList(curPath){
var pathItems = curPath.split(path.sep), result = [];
pathItems = pathItems.filter(function(n){
return n !== "" && n !== undefined;
});
for (var i = 0, len = pathItems.length; i< len; i++) {
var tmpPath = pathItems[i];
if(i === 0 && tmpPath.indexOf(":")>0){
tmpPath = path.join(tmpPath, "/");
}else{
tmpPath = path.join.apply(null,pathItems.slice(0,i+1));
}
result.push(path.resolve(cwd,tmpPath));
}
return result;
}
}
/**
* remove a direcotry from disk
* @param {String} path folder to deleted
* @param {Boolean} recursive whether delete subdirecoties or files recursively
* @return {Q.promise}
*/
directory.delete = function(path, recursive){
if(!recursive){
return Q.nfcall(fs.rmdir, path);
}else{
return Q.nfcall(fsExtra.remove, path);
}
}
/**
* check if direcotry exists
* @param {String} path direcotry path
* @return {Q.Promise} success if exist, failed if none
*/
directory.isExists = function(path){
var def = Q.defer();
fs.exists(path, function(exists){
def.resolve(exists);
});
return def.promise;
}
/**
* move srcDir to destDir
* @param {String} srcDir source directory
* @param {String} destDir destination directory
* @param {Boolean} override is override dest path
* @return {Q.Promise}
*/
directory.move = function(srcDir, destDir, override){
return Q.nfcall(fsExtra.move, srcDir, destDir, {clobber: !!override});
}
/**
* check if a path is a direcotry
* @param {String} path direcotry path
* @return {Q.Promise}
* success if is a direcotry,
* failed if error occurs or not exists
*/
directory.isDirectory = function(path){
var def = Q.defer();
fs.lstat(path, function(err, stats){
if(err){
def.reject(err);
} else {
def.resolve(stats.isDirectory());
}
});
return def.promise;
}
/**
* get sub directories from specific path or current path
* @param {String|Optional} path current path
* @param {String|Optional} pattern search pattern
* @return {Q.promise}
*/
directory.getDirectories = function(path, pattern){
var dicts = [],
def = Q.defer();
if(!pattern){
pattern = "*";
}
if (!path) {
path = directory.getCurrentDirecotry();
}
glob(pattern, {cwd: path, root: path, nounique : false}, function(err, files){
if(err){
def.reject(err);
return;
}
var opts = files.map(function(filePath){
var def = Q.defer();
var realPath = require('path').resolve(path, filePath);
directory.isDirectory(realPath)
.then(function(isDir){
if(isDir)
def.resolve(realPath);
else{
def.reject();
}
}, function(err){
def.reject(err);
});
return def.promise;
});
Q.all(opts).then(function(results){
def.resolve(results);
});
})
return def.promise;
}
/**
* get all files of directory
* @param {String|Optional} path direcotry to search
* @param {String|Optional} pattern search pattern
* @return {Q.Promise}
*/
directory.getFiles = function(path, pattern){
if(!pattern){
pattern = "**/*.*";
}
if(!path){
path = directory.getCurrentDirecotry();
}
return Q.nfcall(glob, pattern, {cwd: path, root: path, nounique : false});
}
directory.getCurrentDirecotry = function(){
return process.cwd();
}