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assets_old/node_modules/minipass-pipeline/LICENSE

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+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

assets_old/node_modules/minipass-pipeline/README.md

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+# minipass-pipeline
+
+Create a pipeline of streams using Minipass.
+
+Calls `.pipe()` on all the streams in the list.  Returns a stream where
+writes got to the first pipe in the chain, and reads are from the last.
+
+Errors are proxied along the chain and emitted on the Pipeline stream.
+
+## USAGE
+
+```js
+const Pipeline = require('minipass-pipeline')
+
+// the list of streams to pipeline together,
+// a bit like `input | transform | output` in bash
+const p = new Pipeline(input, transform, output)
+
+p.write('foo') // writes to input
+p.on('data', chunk => doSomething()) // reads from output stream
+
+// less contrived example (but still pretty contrived)...
+const decode = new bunzipDecoder()
+const unpack = tar.extract({ cwd: 'target-dir' })
+const tbz = new Pipeline(decode, unpack)
+
+fs.createReadStream('archive.tbz').pipe(tbz)
+
+// specify any minipass options if you like, as the first argument
+// it'll only try to pipeline event emitters with a .pipe() method
+const p = new Pipeline({ objectMode: true }, input, transform, output)
+
+// If you don't know the things to pipe in right away, that's fine.
+// use p.push(stream) to add to the end, or p.unshift(stream) to the front
+const databaseDecoderStreamDoohickey = (connectionInfo) => {
+  const p = new Pipeline()
+  logIntoDatabase(connectionInfo).then(connection => {
+    initializeDecoderRing(connectionInfo).then(decoderRing => {
+      p.push(connection, decoderRing)
+      getUpstreamSource(upstream => {
+        p.unshift(upstream)
+      })
+    })
+  })
+  // return to caller right away
+  // emitted data will be upstream -> connection -> decoderRing pipeline
+  return p
+}
+```
+
+Pipeline is a [minipass](http://npm.im/minipass) stream, so it's as
+synchronous as the streams it wraps.  It will buffer data until there is a
+reader, but no longer, so make sure to attach your listeners before you
+pipe it somewhere else.
+
+## `new Pipeline(opts = {}, ...streams)`
+
+Create a new Pipeline with the specified Minipass options and any streams
+provided.
+
+## `pipeline.push(stream, ...)`
+
+Attach one or more streams to the pipeline at the end (read) side of the
+pipe chain.
+
+## `pipeline.unshift(stream, ...)`
+
+Attach one or more streams to the pipeline at the start (write) side of the
+pipe chain.

assets_old/node_modules/minipass-pipeline/index.js

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+const Minipass = require('minipass')
+const EE = require('events')
+const isStream = s => s && s instanceof EE && (
+  typeof s.pipe === 'function' || // readable
+  (typeof s.write === 'function' && typeof s.end === 'function') // writable
+)
+
+const _head = Symbol('_head')
+const _tail = Symbol('_tail')
+const _linkStreams = Symbol('_linkStreams')
+const _setHead = Symbol('_setHead')
+const _setTail = Symbol('_setTail')
+const _onError = Symbol('_onError')
+const _onData = Symbol('_onData')
+const _onEnd = Symbol('_onEnd')
+const _onDrain = Symbol('_onDrain')
+const _streams = Symbol('_streams')
+class Pipeline extends Minipass {
+  constructor (opts, ...streams) {
+    if (isStream(opts)) {
+      streams.unshift(opts)
+      opts = {}
+    }
+
+    super(opts)
+    this[_streams] = []
+    if (streams.length)
+      this.push(...streams)
+  }
+
+  [_linkStreams] (streams) {
+    // reduce takes (left,right), and we return right to make it the
+    // new left value.
+    return streams.reduce((src, dest) => {
+      src.on('error', er => dest.emit('error', er))
+      src.pipe(dest)
+      return dest
+    })
+  }
+
+  push (...streams) {
+    this[_streams].push(...streams)
+    if (this[_tail])
+      streams.unshift(this[_tail])
+
+    const linkRet = this[_linkStreams](streams)
+
+    this[_setTail](linkRet)
+    if (!this[_head])
+      this[_setHead](streams[0])
+  }
+
+  unshift (...streams) {
+    this[_streams].unshift(...streams)
+    if (this[_head])
+      streams.push(this[_head])
+
+    const linkRet = this[_linkStreams](streams)
+    this[_setHead](streams[0])
+    if (!this[_tail])
+      this[_setTail](linkRet)
+  }
+
+  destroy (er) {
+    // set fire to the whole thing.
+    this[_streams].forEach(s =>
+      typeof s.destroy === 'function' && s.destroy())
+    return super.destroy(er)
+  }
+
+  // readable interface -> tail
+  [_setTail] (stream) {
+    this[_tail] = stream
+    stream.on('error', er => this[_onError](stream, er))
+    stream.on('data', chunk => this[_onData](stream, chunk))
+    stream.on('end', () => this[_onEnd](stream))
+    stream.on('finish', () => this[_onEnd](stream))
+  }
+
+  // errors proxied down the pipeline
+  // they're considered part of the "read" interface
+  [_onError] (stream, er) {
+    if (stream === this[_tail])
+      this.emit('error', er)
+  }
+  [_onData] (stream, chunk) {
+    if (stream === this[_tail])
+      super.write(chunk)
+  }
+  [_onEnd] (stream) {
+    if (stream === this[_tail])
+      super.end()
+  }
+  pause () {
+    super.pause()
+    return this[_tail] && this[_tail].pause && this[_tail].pause()
+  }
+
+  // NB: Minipass calls its internal private [RESUME] method during
+  // pipe drains, to avoid hazards where stream.resume() is overridden.
+  // Thus, we need to listen to the resume *event*, not override the
+  // resume() method, and proxy *that* to the tail.
+  emit (ev, ...args) {
+    if (ev === 'resume' && this[_tail] && this[_tail].resume)
+      this[_tail].resume()
+    return super.emit(ev, ...args)
+  }
+
+  // writable interface -> head
+  [_setHead] (stream) {
+    this[_head] = stream
+    stream.on('drain', () => this[_onDrain](stream))
+  }
+  [_onDrain] (stream) {
+    if (stream === this[_head])
+      this.emit('drain')
+  }
+  write (chunk, enc, cb) {
+    return this[_head].write(chunk, enc, cb) &&
+      (this.flowing || this.buffer.length === 0)
+  }
+  end (chunk, enc, cb) {
+    this[_head].end(chunk, enc, cb)
+    return this
+  }
+}
+
+module.exports = Pipeline

assets_old/node_modules/minipass-pipeline/package.json

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+{
+  "name": "minipass-pipeline",
+  "version": "1.2.4",
+  "description": "create a pipeline of streams using Minipass",
+  "author": "Isaac Z. Schlueter <i@izs.me> (https://izs.me)",
+  "license": "ISC",
+  "scripts": {
+    "test": "tap",
+    "snap": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --follow-tags"
+  },
+  "tap": {
+    "check-coverage": true
+  },
+  "devDependencies": {
+    "tap": "^14.6.9"
+  },
+  "dependencies": {
+    "minipass": "^3.0.0"
+  },
+  "files": [
+    "index.js"
+  ],
+  "engines": {
+    "node": ">=8"
+  }
+}