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/*
* app.js: Common utility functions for working with directories
*
* (C) 2011, Nodejitsu Inc.
* MIT LICENSE
*
*/
var utile = require('utile'),
async = utile.async,
mkdirp = utile.mkdirp,
rimraf = utile.rimraf;
var directories = exports;
//
// ### function create (dirs, callback)
// #### @dirs {Object} Directories to create
// #### @callback {function} Continuation to respond to when complete
// Creates all of the specified `directories` in the current environment.
//
directories.create = function (dirs, callback) {
function createDir(dir, next) {
mkdirp(dir, 0755, function () {
next(null, dir);
});
}
if (!dirs) {
return callback();
}
async.mapSeries(Object.keys(dirs).map(function (key) {
return dirs[key]
}), createDir, callback);
};
//
// ### function remove (dirs, callback)
// #### @dirs {Object} Directories to remove
// #### @callback {function} Continuation to respond to when complete
// Removes all of the specified `directories` in the current environment.
//
directories.remove = function (dirs, callback) {
function removeDir (dir, next) {
rimraf(dir, function () {
next(null, dir);
});
}
if (!dirs) {
return callback();
}
async.mapSeries(Object.keys(dirs).map(function (key) {
return dirs[key]
}), removeDir, callback);
};
//
// ### function normalize (root, dirs)
// #### @keys {Object} Set of keys to normalize upon.
// #### @dirs {Object} Set of directories to normalize.
// Normalizes the specified `dirs` against the relative
// `root` of the application.
//
directories.normalize = function (keys, dirs) {
var normalized = {};
Object.keys(dirs).forEach(function (key) {
normalized[key] = dirs[key];
Object.keys(keys).forEach(function (constant) {
normalized[key] = normalized[key].replace(constant, keys[constant]);
});
});
return normalized;
};