update

package/node_modules/@npmcli/agent/lib/options.js

@@ -0,0 +1,86 @@
+'use strict'
+
+const dns = require('./dns')
+
+const normalizeOptions = (opts) => {
+  const family = parseInt(opts.family ?? '0', 10)
+  const keepAlive = opts.keepAlive ?? true
+
+  const normalized = {
+    // nodejs http agent options. these are all the defaults
+    // but kept here to increase the likelihood of cache hits
+    // https://nodejs.org/api/http.html#new-agentoptions
+    keepAliveMsecs: keepAlive ? 1000 : undefined,
+    maxSockets: opts.maxSockets ?? 15,
+    maxTotalSockets: Infinity,
+    maxFreeSockets: keepAlive ? 256 : undefined,
+    scheduling: 'fifo',
+    // then spread the rest of the options
+    ...opts,
+    // we already set these to their defaults that we want
+    family,
+    keepAlive,
+    // our custom timeout options
+    timeouts: {
+      // the standard timeout option is mapped to our idle timeout
+      // and then deleted below
+      idle: opts.timeout ?? 0,
+      connection: 0,
+      response: 0,
+      transfer: 0,
+      ...opts.timeouts,
+    },
+    // get the dns options that go at the top level of socket connection
+    ...dns.getOptions({ family, ...opts.dns }),
+  }
+
+  // remove timeout since we already used it to set our own idle timeout
+  delete normalized.timeout
+
+  return normalized
+}
+
+const createKey = (obj) => {
+  let key = ''
+  const sorted = Object.entries(obj).sort((a, b) => a[0] - b[0])
+  for (let [k, v] of sorted) {
+    if (v == null) {
+      v = 'null'
+    } else if (v instanceof URL) {
+      v = v.toString()
+    } else if (typeof v === 'object') {
+      v = createKey(v)
+    }
+    key += `${k}:${v}:`
+  }
+  return key
+}
+
+const cacheOptions = ({ secureEndpoint, ...options }) => createKey({
+  secureEndpoint: !!secureEndpoint,
+  // socket connect options
+  family: options.family,
+  hints: options.hints,
+  localAddress: options.localAddress,
+  // tls specific connect options
+  strictSsl: secureEndpoint ? !!options.rejectUnauthorized : false,
+  ca: secureEndpoint ? options.ca : null,
+  cert: secureEndpoint ? options.cert : null,
+  key: secureEndpoint ? options.key : null,
+  // http agent options
+  keepAlive: options.keepAlive,
+  keepAliveMsecs: options.keepAliveMsecs,
+  maxSockets: options.maxSockets,
+  maxTotalSockets: options.maxTotalSockets,
+  maxFreeSockets: options.maxFreeSockets,
+  scheduling: options.scheduling,
+  // timeout options
+  timeouts: options.timeouts,
+  // proxy
+  proxy: options.proxy,
+})
+
+module.exports = {
+  normalizeOptions,
+  cacheOptions,
+}