1// Copyright 2022 Google LLC
 2//
 3// Licensed under the Apache License, Version 2.0 (the "License");
 4// you may not use this file except in compliance with the License.
 5// You may obtain a copy of the License at
 6//
 7//     https://www.apache.org/licenses/LICENSE-2.0
 8//
 9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15import chalk from 'chalk'
16import os from 'node:os'
17import path from 'node:path'
18import repl from 'node:repl'
19import { inspect } from 'node:util'
20import { ProcessOutput, defaults } from './core.js'
21
22export function startRepl() {
23  defaults.verbose = false
24  const r = repl.start({
25    prompt: chalk.greenBright.bold('❯ '),
26    useGlobal: true,
27    preview: false,
28    writer(output: any) {
29      if (output instanceof ProcessOutput) {
30        return output.toString().replace(/\n$/, '')
31      }
32      return inspect(output, { colors: true })
33    },
34  })
35  r.setupHistory(path.join(os.homedir(), '.zx_repl_history'), () => {})
36}