Index: node_modules/make-fetch-happen/lib/agent.js
===================================================================
--- node_modules/make-fetch-happen/lib/agent.js	(revision 81bc7da776d8cda42939ef4ab350c88d13b4941f)
+++ node_modules/make-fetch-happen/lib/agent.js	(revision 81bc7da776d8cda42939ef4ab350c88d13b4941f)
@@ -0,0 +1,194 @@
+'use strict'
+const LRU = require('lru-cache')
+const url = require('url')
+const isLambda = require('is-lambda')
+
+const AGENT_CACHE = new LRU({ max: 50 })
+const HttpAgent = require('agentkeepalive')
+const HttpsAgent = HttpAgent.HttpsAgent
+
+module.exports = getAgent
+
+const getAgentTimeout = timeout =>
+  typeof timeout !== 'number' || !timeout ? 0 : timeout + 1
+
+const getMaxSockets = maxSockets => maxSockets || 15
+
+function getAgent (uri, opts) {
+  const parsedUri = new url.URL(typeof uri === 'string' ? uri : uri.url)
+  const isHttps = parsedUri.protocol === 'https:'
+  const pxuri = getProxyUri(parsedUri.href, opts)
+
+  // If opts.timeout is zero, set the agentTimeout to zero as well. A timeout
+  // of zero disables the timeout behavior (OS limits still apply). Else, if
+  // opts.timeout is a non-zero value, set it to timeout + 1, to ensure that
+  // the node-fetch-npm timeout will always fire first, giving us more
+  // consistent errors.
+  const agentTimeout = getAgentTimeout(opts.timeout)
+  const agentMaxSockets = getMaxSockets(opts.maxSockets)
+
+  const key = [
+    `https:${isHttps}`,
+    pxuri
+      ? `proxy:${pxuri.protocol}//${pxuri.host}:${pxuri.port}`
+      : '>no-proxy<',
+    `local-address:${opts.localAddress || '>no-local-address<'}`,
+    `strict-ssl:${isHttps ? opts.rejectUnauthorized : '>no-strict-ssl<'}`,
+    `ca:${(isHttps && opts.ca) || '>no-ca<'}`,
+    `cert:${(isHttps && opts.cert) || '>no-cert<'}`,
+    `key:${(isHttps && opts.key) || '>no-key<'}`,
+    `timeout:${agentTimeout}`,
+    `maxSockets:${agentMaxSockets}`,
+  ].join(':')
+
+  if (opts.agent != null) { // `agent: false` has special behavior!
+    return opts.agent
+  }
+
+  // keep alive in AWS lambda makes no sense
+  const lambdaAgent = !isLambda ? null
+    : isHttps ? require('https').globalAgent
+    : require('http').globalAgent
+
+  if (isLambda && !pxuri)
+    return lambdaAgent
+
+  if (AGENT_CACHE.peek(key))
+    return AGENT_CACHE.get(key)
+
+  if (pxuri) {
+    const pxopts = isLambda ? {
+      ...opts,
+      agent: lambdaAgent,
+    } : opts
+    const proxy = getProxy(pxuri, pxopts, isHttps)
+    AGENT_CACHE.set(key, proxy)
+    return proxy
+  }
+
+  const agent = isHttps ? new HttpsAgent({
+    maxSockets: agentMaxSockets,
+    ca: opts.ca,
+    cert: opts.cert,
+    key: opts.key,
+    localAddress: opts.localAddress,
+    rejectUnauthorized: opts.rejectUnauthorized,
+    timeout: agentTimeout,
+  }) : new HttpAgent({
+    maxSockets: agentMaxSockets,
+    localAddress: opts.localAddress,
+    timeout: agentTimeout,
+  })
+  AGENT_CACHE.set(key, agent)
+  return agent
+}
+
+function checkNoProxy (uri, opts) {
+  const host = new url.URL(uri).hostname.split('.').reverse()
+  let noproxy = (opts.noProxy || getProcessEnv('no_proxy'))
+  if (typeof noproxy === 'string')
+    noproxy = noproxy.split(/\s*,\s*/g)
+
+  return noproxy && noproxy.some(no => {
+    const noParts = no.split('.').filter(x => x).reverse()
+    if (!noParts.length)
+      return false
+    for (let i = 0; i < noParts.length; i++) {
+      if (host[i] !== noParts[i])
+        return false
+    }
+    return true
+  })
+}
+
+module.exports.getProcessEnv = getProcessEnv
+
+function getProcessEnv (env) {
+  if (!env)
+    return
+
+  let value
+
+  if (Array.isArray(env)) {
+    for (const e of env) {
+      value = process.env[e] ||
+        process.env[e.toUpperCase()] ||
+        process.env[e.toLowerCase()]
+      if (typeof value !== 'undefined')
+        break
+    }
+  }
+
+  if (typeof env === 'string') {
+    value = process.env[env] ||
+      process.env[env.toUpperCase()] ||
+      process.env[env.toLowerCase()]
+  }
+
+  return value
+}
+
+module.exports.getProxyUri = getProxyUri
+function getProxyUri (uri, opts) {
+  const protocol = new url.URL(uri).protocol
+
+  const proxy = opts.proxy ||
+    (
+      protocol === 'https:' &&
+      getProcessEnv('https_proxy')
+    ) ||
+    (
+      protocol === 'http:' &&
+      getProcessEnv(['https_proxy', 'http_proxy', 'proxy'])
+    )
+  if (!proxy)
+    return null
+
+  const parsedProxy = (typeof proxy === 'string') ? new url.URL(proxy) : proxy
+
+  return !checkNoProxy(uri, opts) && parsedProxy
+}
+
+const getAuth = u =>
+  u.username && u.password ? decodeURIComponent(`${u.username}:${u.password}`)
+  : u.username ? decodeURIComponent(u.username)
+  : null
+
+const getPath = u => u.pathname + u.search + u.hash
+
+const HttpProxyAgent = require('http-proxy-agent')
+const HttpsProxyAgent = require('https-proxy-agent')
+const SocksProxyAgent = require('socks-proxy-agent')
+module.exports.getProxy = getProxy
+function getProxy (proxyUrl, opts, isHttps) {
+  const popts = {
+    host: proxyUrl.hostname,
+    port: proxyUrl.port,
+    protocol: proxyUrl.protocol,
+    path: getPath(proxyUrl),
+    auth: getAuth(proxyUrl),
+    ca: opts.ca,
+    cert: opts.cert,
+    key: opts.key,
+    timeout: getAgentTimeout(opts.timeout),
+    localAddress: opts.localAddress,
+    maxSockets: getMaxSockets(opts.maxSockets),
+    rejectUnauthorized: opts.rejectUnauthorized,
+  }
+
+  if (proxyUrl.protocol === 'http:' || proxyUrl.protocol === 'https:') {
+    if (!isHttps)
+      return new HttpProxyAgent(popts)
+    else
+      return new HttpsProxyAgent(popts)
+  } else if (proxyUrl.protocol.startsWith('socks'))
+    return new SocksProxyAgent(popts)
+  else {
+    throw Object.assign(
+      new Error(`unsupported proxy protocol: '${proxyUrl.protocol}'`),
+      {
+        url: proxyUrl.href,
+      }
+    )
+  }
+}