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/**
* archiver-utils
*
* Copyright (c) 2015 Chris Talkington.
* Licensed under the MIT license.
* https://github.com/archiverjs/archiver-utils/blob/master/LICENSE
*/
var fs = require('graceful-fs');
var path = require('path');
var nutil = require('util');
var lazystream = require('lazystream');
var normalizePath = require('normalize-path');
var _ = require('lodash');
var Stream = require('stream').Stream;
var PassThrough = require('readable-stream').PassThrough;
var utils = module.exports = {};
utils.file = require('./file.js');
function assertPath(path) {
if (typeof path !== 'string') {
throw new TypeError('Path must be a string. Received ' + nutils.inspect(path));
}
}
utils.collectStream = function(source, callback) {
var collection = [];
var size = 0;
source.on('error', callback);
source.on('data', function(chunk) {
collection.push(chunk);
size += chunk.length;
});
source.on('end', function() {
var buf = new Buffer(size);
var offset = 0;
collection.forEach(function(data) {
data.copy(buf, offset);
offset += data.length;
});
callback(null, buf);
});
};
utils.dateify = function(dateish) {
dateish = dateish || new Date();
if (dateish instanceof Date) {
dateish = dateish;
} else if (typeof dateish === 'string') {
dateish = new Date(dateish);
} else {
dateish = new Date();
}
return dateish;
};
// this is slightly different from lodash version
utils.defaults = function(object, source, guard) {
var args = arguments;
args[0] = args[0] || {};
return _.defaults.apply(_, args);
};
utils.isStream = function(source) {
return source instanceof Stream;
};
utils.lazyReadStream = function(filepath) {
return new lazystream.Readable(function() {
return fs.createReadStream(filepath);
});
};
utils.normalizeInputSource = function(source) {
if (source === null) {
return new Buffer(0);
} else if (typeof source === 'string') {
return new Buffer(source);
} else if (utils.isStream(source) && !source._readableState) {
var normalized = new PassThrough();
source.pipe(normalized);
return normalized;
}
return source;
};
utils.sanitizePath = function(filepath) {
return normalizePath(filepath, false).replace(/^\w+:/, '').replace(/^(\.\.\/|\/)+/, '');
};
utils.trailingSlashIt = function(str) {
return str.slice(-1) !== '/' ? str + '/' : str;
};
utils.unixifyPath = function(filepath) {
return normalizePath(filepath, false).replace(/^\w+:/, '');
};
utils.walkdir = function(dirpath, base, callback) {
var results = [];
if (typeof base === 'function') {
callback = base;
base = dirpath;
}
fs.readdir(dirpath, function(err, list) {
var i = 0;
var file;
var filepath;
if (err) {
return callback(err);
}
(function next() {
file = list[i++];
if (!file) {
return callback(null, results);
}
filepath = path.join(dirpath, file);
fs.stat(filepath, function(err, stats) {
results.push({
path: filepath,
relative: path.relative(base, filepath).replace(/\\/g, '/'),
stats: stats
});
if (stats && stats.isDirectory()) {
utils.walkdir(filepath, base, function(err, res) {
res.forEach(function(dirEntry) {
results.push(dirEntry);
});
next();
});
} else {
next();
}
});
})();
});
};
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