index.js
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'use strict';
var defaults = require('defaults');
var path = require('path');
var through2 = require('through2');
var mkdirp = require('mkdirp');
var fs = require('graceful-fs');
var writeContents = require('./writeContents');
function dest(outFolder, opt) {
opt = opt || {};
if (typeof outFolder !== 'string' && typeof outFolder !== 'function') {
throw new Error('Invalid output folder');
}
var options = defaults(opt, {
cwd: process.cwd()
});
if (typeof options.mode === 'string') {
options.mode = parseInt(options.mode, 8);
}
var cwd = path.resolve(options.cwd);
function saveFile (file, enc, cb) {
var basePath;
if (typeof outFolder === 'string') {
basePath = path.resolve(cwd, outFolder);
}
if (typeof outFolder === 'function') {
basePath = path.resolve(cwd, outFolder(file));
}
var writePath = path.resolve(basePath, file.relative);
var writeFolder = path.dirname(writePath);
// wire up new properties
file.stat = file.stat ? file.stat : new fs.Stats();
file.stat.mode = (options.mode || file.stat.mode);
file.cwd = cwd;
file.base = basePath;
file.path = writePath;
// mkdirp the folder the file is going in
mkdirp(writeFolder, function(err){
if (err) {
return cb(err);
}
writeContents(writePath, file, cb);
});
}
var stream = through2.obj(saveFile);
// TODO: option for either backpressure or lossy
stream.resume();
return stream;
}
module.exports = dest;