repl.ts

// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import os from 'node:os'
import path from 'node:path'
import { inspect } from 'node:util'
import { ProcessOutput, defaults } from './core.js'
import { chalk } from './vendor.js'

export async function startRepl() {
  defaults.verbose = false
  const r = (await import('node:repl')).start({
    prompt: chalk.greenBright.bold('❯ '),
    useGlobal: true,
    preview: false,
    writer(output: any) {
      if (output instanceof ProcessOutput) {
        return output.toString().replace(/\n$/, '')
      }
      return inspect(output, { colors: true })
    },
  })
  r.setupHistory(path.join(os.homedir(), '.zx_repl_history'), () => {})
}