Pretty format (#20352)

* Update prettier flow to include JS

* Run prettier

* ...run prettier

lib/redis/create-client.js

@@ -9,7 +9,7 @@ const redisMaxDb = REDIS_MAX_DB || 15
 // Maximum delay between reconnection attempts after backoff
 const maxReconnectDelay = 5000
 
-function formatRedisError (error) {
+function formatRedisError(error) {
   const errorCode = error ? error.code : null
   const errorName = error ? error.constructor.name : 'Server disconnection'
   const errorMsg = error ? error.toString() : 'unknown (commonly a server idle timeout)'
@@ -17,7 +17,7 @@ function formatRedisError (error) {
   return preamble + ': ' + errorMsg
 }
 
-export default function createClient (options = {}) {
+export default function createClient(options = {}) {
   const { db, name, url } = options
 
   // If no Redis URL is provided, bail out
@@ -29,13 +29,15 @@ export default function createClient (options = {}) {
   if (db != null) {
     if (!Number.isInteger(db) || db < redisMinDb || db > redisMaxDb) {
       throw new TypeError(
-        `Redis database number must be an integer between ${redisMinDb} and ${redisMaxDb} but was: ${JSON.stringify(db)}`
+        `Redis database number must be an integer between ${redisMinDb} and ${redisMaxDb} but was: ${JSON.stringify(
+          db
+        )}`
       )
     }
   }
 
   let pingInterval = null
-  function stopPinging () {
+  function stopPinging() {
     if (pingInterval) {
       clearInterval(pingInterval)
       pingInterval = null
@@ -46,12 +48,12 @@ export default function createClient (options = {}) {
   const client = Redis.createClient(url, {
     // Only add this configuration for TLS-enabled Redis URL values.
     // Otherwise, it breaks for local Redis instances without TLS enabled.
-    ...url.startsWith('rediss://') && {
+    ...(url.startsWith('rediss://') && {
       tls: {
         // Required for production Heroku Redis
-        rejectUnauthorized: false
-      }
-    },
+        rejectUnauthorized: false,
+      },
+    }),
 
     // Any running command that is unfulfilled when a connection is lost should
     // NOT be retried after the connection has been reestablished.
@@ -73,26 +75,25 @@ export default function createClient (options = {}) {
     // Be aware that this retry (NOT just reconnection) strategy appears to
     // be a major point of confusion (and possibly legitimate issues) between
     // reconnecting and retrying failed commands.
-    retry_strategy:
-      function ({
-        attempt,
-        error,
-        total_retry_time: totalRetryTime,
-        times_connected: timesConnected
-      }) {
-        let delayPerAttempt = 100
+    retry_strategy: function ({
+      attempt,
+      error,
+      total_retry_time: totalRetryTime,
+      times_connected: timesConnected,
+    }) {
+      let delayPerAttempt = 100
 
-        // If the server appears to be unavailable, slow down faster
-        if (error && error.code === 'ECONNREFUSED') {
-          delayPerAttempt *= 5
-        }
+      // If the server appears to be unavailable, slow down faster
+      if (error && error.code === 'ECONNREFUSED') {
+        delayPerAttempt *= 5
+      }
 
-        // Reconnect after delay
-        return Math.min(attempt * delayPerAttempt, maxReconnectDelay)
-      },
+      // Reconnect after delay
+      return Math.min(attempt * delayPerAttempt, maxReconnectDelay)
+    },
 
     // Expand whatever other options and overrides were provided
-    ...options
+    ...options,
   })
 
   // Handle connection errors to prevent killing the Node.js process
@@ -115,10 +116,9 @@ export default function createClient (options = {}) {
 
     // Start pinging the server once per minute to prevent Redis connection
     // from closing when its idle `timeout` configuration value expires
-    pingInterval = setInterval(
-      () => { client.ping(() => {}) },
-      60 * 1000
-    )
+    pingInterval = setInterval(() => {
+      client.ping(() => {})
+    }, 60 * 1000)
   })
 
   client.on('end', () => {
@@ -130,9 +130,15 @@ export default function createClient (options = {}) {
   const logPrefix = '[redis' + (name ? ` (${name})` : '') + ']'
 
   // Add event listeners for basic logging
-  client.on('connect', () => { console.log(logPrefix, 'Connection opened') })
-  client.on('ready', () => { console.log(logPrefix, 'Ready to receive commands') })
-  client.on('end', () => { console.log(logPrefix, 'Connection closed') })
+  client.on('connect', () => {
+    console.log(logPrefix, 'Connection opened')
+  })
+  client.on('ready', () => {
+    console.log(logPrefix, 'Ready to receive commands')
+  })
+  client.on('end', () => {
+    console.log(logPrefix, 'Connection closed')
+  })
   client.on(
     'reconnecting',
     ({
@@ -141,7 +147,7 @@ export default function createClient (options = {}) {
       // The rest are unofficial properties but currently supported
       error,
       total_retry_time: totalRetryTime,
-      times_connected: timesConnected
+      times_connected: timesConnected,
     }) => {
       console.log(
         logPrefix,
@@ -154,8 +160,12 @@ export default function createClient (options = {}) {
       )
     }
   )
-  client.on('warning', (msg) => { console.warn(logPrefix, 'Warning:', msg) })
-  client.on('error', (error) => { console.error(logPrefix, formatRedisError(error)) })
+  client.on('warning', (msg) => {
+    console.warn(logPrefix, 'Warning:', msg)
+  })
+  client.on('error', (error) => {
+    console.error(logPrefix, formatRedisError(error))
+  })
 
   return client
 }