feat(cli): add shortcuts (#2353)

src/node/cli.ts

@@ -4,6 +4,7 @@ import { createLogger } from 'vite'
 import { build, createServer, serve } from '.'
 import { init } from './init/init'
 import { version } from '../../package.json'
+import { bindShortcuts } from './shortcuts'
 
 const argv: any = minimist(process.argv.slice(2))
 
@@ -33,6 +34,7 @@ if (!command || command === 'dev') {
     await server.listen()
     logVersion(server.config.logger)
     server.printUrls()
+    bindShortcuts(server)
   }
   createDevServer().catch((err) => {
     createLogger().error(

src/node/shortcuts.ts

@@ -0,0 +1,95 @@
+import colors from 'picocolors'
+import type { ViteDevServer } from 'vite'
+
+export type CLIShortcut = {
+  key: string
+  description: string
+  action(server: ViteDevServer): void | Promise<void>
+}
+
+export function bindShortcuts(server: ViteDevServer): void {
+  if (!server.httpServer || !process.stdin.isTTY || process.env.CI) {
+    return
+  }
+
+  server.config.logger.info(
+    colors.dim(colors.green('  ➜')) +
+      colors.dim('  press ') +
+      colors.bold('h') +
+      colors.dim(' to show help')
+  )
+
+  let actionRunning = false
+
+  const onInput = async (input: string) => {
+    // ctrl+c or ctrl+d
+    if (input === '\x03' || input === '\x04') {
+      await server.close().finally(() => process.exit(1))
+      return
+    }
+
+    if (actionRunning) return
+
+    if (input === 'h') {
+      server.config.logger.info(
+        [
+          '',
+          colors.bold('  Shortcuts'),
+          ...SHORTCUTS.map(
+            (shortcut) =>
+              colors.dim('  press ') +
+              colors.bold(shortcut.key) +
+              colors.dim(` to ${shortcut.description}`)
+          )
+        ].join('\n')
+      )
+    }
+
+    const shortcut = SHORTCUTS.find((shortcut) => shortcut.key === input)
+    if (!shortcut) return
+
+    actionRunning = true
+    await shortcut.action(server)
+    actionRunning = false
+  }
+
+  process.stdin.setRawMode(true)
+
+  process.stdin.on('data', onInput).setEncoding('utf8').resume()
+
+  server.httpServer.on('close', () => {
+    process.stdin.off('data', onInput).pause()
+  })
+}
+
+const SHORTCUTS: CLIShortcut[] = [
+  {
+    key: 'u',
+    description: 'show server url',
+    action(server) {
+      server.config.logger.info('')
+      server.printUrls()
+    }
+  },
+  {
+    key: 'o',
+    description: 'open in browser',
+    action(server) {
+      server.openBrowser()
+    }
+  },
+  {
+    key: 'c',
+    description: 'clear console',
+    action(server) {
+      server.config.logger.clearScreen('error')
+    }
+  },
+  {
+    key: 'q',
+    description: 'quit',
+    async action(server) {
+      await server.close().finally(() => process.exit())
+    }
+  }
+]