diff options
Diffstat (limited to 'deps/npm/node_modules/pacote/node_modules/make-fetch-happen/node_modules/mississippi/node_modules/pumpify/index.js')
-rw-r--r-- | deps/npm/node_modules/pacote/node_modules/make-fetch-happen/node_modules/mississippi/node_modules/pumpify/index.js | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/deps/npm/node_modules/pacote/node_modules/make-fetch-happen/node_modules/mississippi/node_modules/pumpify/index.js b/deps/npm/node_modules/pacote/node_modules/make-fetch-happen/node_modules/mississippi/node_modules/pumpify/index.js new file mode 100644 index 0000000000..45bb987e85 --- /dev/null +++ b/deps/npm/node_modules/pacote/node_modules/make-fetch-happen/node_modules/mississippi/node_modules/pumpify/index.js @@ -0,0 +1,56 @@ +var pump = require('pump') +var inherits = require('inherits') +var Duplexify = require('duplexify') + +var toArray = function(args) { + if (!args.length) return [] + return Array.isArray(args[0]) ? args[0] : Array.prototype.slice.call(args) +} + +var define = function(opts) { + var Pumpify = function() { + var streams = toArray(arguments) + if (!(this instanceof Pumpify)) return new Pumpify(streams) + Duplexify.call(this, null, null, opts) + if (streams.length) this.setPipeline(streams) + } + + inherits(Pumpify, Duplexify) + + Pumpify.prototype.setPipeline = function() { + var streams = toArray(arguments) + var self = this + var ended = false + var w = streams[0] + var r = streams[streams.length-1] + + r = r.readable ? r : null + w = w.writable ? w : null + + var onclose = function() { + streams[0].emit('error', new Error('stream was destroyed')) + } + + this.on('close', onclose) + this.on('prefinish', function() { + if (!ended) self.cork() + }) + + pump(streams, function(err) { + self.removeListener('close', onclose) + if (err) return self.destroy(err) + ended = true + self.uncork() + }) + + if (this.destroyed) return onclose() + this.setWritable(w) + this.setReadable(r) + } + + return Pumpify +} + +module.exports = define({destroy:false}) +module.exports.obj = define({destroy:false, objectMode:true, highWaterMark:16}) +module.exports.ctor = define |