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module.exports = collect
function collect (stream) {
if (stream._collected) return
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)
}
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