--- /dev/null
+module.exports = collect
+
+function collect (stream) {
+ if (stream._collected) return
+
+ if (stream._paused) return stream.on('resume', collect.bind(null, stream))
+
+ stream._collected = true
+ stream.pause()
+
+ stream.on('data', save)
+ stream.on('end', save)
+ var buf = []
+ function save (b) {
+ if (typeof b === 'string') b = new Buffer(b)
+ if (Buffer.isBuffer(b) && !b.length) return
+ buf.push(b)
+ }
+
+ stream.on('entry', saveEntry)
+ var entryBuffer = []
+ function saveEntry (e) {
+ collect(e)
+ entryBuffer.push(e)
+ }
+
+ stream.on('proxy', proxyPause)
+ function proxyPause (p) {
+ p.pause()
+ }
+
+ // replace the pipe method with a new version that will
+ // unlock the buffered stuff. if you just call .pipe()
+ // without a destination, then it'll re-play the events.
+ stream.pipe = (function (orig) {
+ return function (dest) {
+ // console.error(' === open the pipes', dest && dest.path)
+
+ // let the entries flow through one at a time.
+ // Once they're all done, then we can resume completely.
+ var e = 0
+ ;(function unblockEntry () {
+ var entry = entryBuffer[e++]
+ // console.error(" ==== unblock entry", entry && entry.path)
+ if (!entry) return resume()
+ entry.on('end', unblockEntry)
+ if (dest) dest.add(entry)
+ else stream.emit('entry', entry)
+ })()
+
+ function resume () {
+ stream.removeListener('entry', saveEntry)
+ stream.removeListener('data', save)
+ stream.removeListener('end', save)
+
+ stream.pipe = orig
+ if (dest) stream.pipe(dest)
+
+ buf.forEach(function (b) {
+ if (b) stream.emit('data', b)
+ else stream.emit('end')
+ })
+
+ stream.resume()
+ }
+
+ return dest
+ }
+ })(stream.pipe)
+}