diff options
Diffstat (limited to 'node_modules/pump/index.js')
-rw-r--r-- | node_modules/pump/index.js | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/node_modules/pump/index.js b/node_modules/pump/index.js deleted file mode 100644 index c15059f..0000000 --- a/node_modules/pump/index.js +++ /dev/null @@ -1,82 +0,0 @@ -var once = require('once') -var eos = require('end-of-stream') -var fs = require('fs') // we only need fs to get the ReadStream and WriteStream prototypes - -var noop = function () {} -var ancient = /^v?\.0/.test(process.version) - -var isFn = function (fn) { - return typeof fn === 'function' -} - -var isFS = function (stream) { - if (!ancient) return false // newer node version do not need to care about fs is a special way - if (!fs) return false // browser - return (stream instanceof (fs.ReadStream || noop) || stream instanceof (fs.WriteStream || noop)) && isFn(stream.close) -} - -var isRequest = function (stream) { - return stream.setHeader && isFn(stream.abort) -} - -var destroyer = function (stream, reading, writing, callback) { - callback = once(callback) - - var closed = false - stream.on('close', function () { - closed = true - }) - - eos(stream, {readable: reading, writable: writing}, function (err) { - if (err) return callback(err) - closed = true - callback() - }) - - var destroyed = false - return function (err) { - if (closed) return - if (destroyed) return - destroyed = true - - if (isFS(stream)) return stream.close(noop) // use close for fs streams to avoid fd leaks - if (isRequest(stream)) return stream.abort() // request.destroy just do .end - .abort is what we want - - if (isFn(stream.destroy)) return stream.destroy() - - callback(err || new Error('stream was destroyed')) - } -} - -var call = function (fn) { - fn() -} - -var pipe = function (from, to) { - return from.pipe(to) -} - -var pump = function () { - var streams = Array.prototype.slice.call(arguments) - var callback = isFn(streams[streams.length - 1] || noop) && streams.pop() || noop - - if (Array.isArray(streams[0])) streams = streams[0] - if (streams.length < 2) throw new Error('pump requires two streams per minimum') - - var error - var destroys = streams.map(function (stream, i) { - var reading = i < streams.length - 1 - var writing = i > 0 - return destroyer(stream, reading, writing, function (err) { - if (!error) error = err - if (err) destroys.forEach(call) - if (reading) return - destroys.forEach(call) - callback(error) - }) - }) - - return streams.reduce(pipe) -} - -module.exports = pump |