Installing dependencies.

node_modules/npm/lib/commands/ping.js

@@ -0,0 +1,28 @@
+const log = require('../utils/log-shim')
+const pingUtil = require('../utils/ping.js')
+const BaseCommand = require('../base-command.js')
+
+class Ping extends BaseCommand {
+  static description = 'Ping npm registry'
+  static params = ['registry']
+  static name = 'ping'
+  static ignoreImplicitWorkspace = true
+
+  async exec (args) {
+    log.notice('PING', this.npm.config.get('registry'))
+    const start = Date.now()
+    const details = await pingUtil({ ...this.npm.flatOptions })
+    const time = Date.now() - start
+    log.notice('PONG', `${time}ms`)
+    if (this.npm.config.get('json')) {
+      this.npm.output(JSON.stringify({
+        registry: this.npm.config.get('registry'),
+        time,
+        details,
+      }, null, 2))
+    } else if (Object.keys(details).length) {
+      log.notice('PONG', `${JSON.stringify(details, null, 2)}`)
+    }
+  }
+}
+module.exports = Ping