diff options
Diffstat (limited to 'deps/npm/node_modules/npm-lifecycle/node_modules/node-gyp/node_modules/fstream/lib/collect.js')
-rw-r--r-- | deps/npm/node_modules/npm-lifecycle/node_modules/node-gyp/node_modules/fstream/lib/collect.js | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/deps/npm/node_modules/npm-lifecycle/node_modules/node-gyp/node_modules/fstream/lib/collect.js b/deps/npm/node_modules/npm-lifecycle/node_modules/node-gyp/node_modules/fstream/lib/collect.js new file mode 100644 index 0000000000..e5d4f35833 --- /dev/null +++ b/deps/npm/node_modules/npm-lifecycle/node_modules/node-gyp/node_modules/fstream/lib/collect.js @@ -0,0 +1,70 @@ +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) +} |