63 lines
1.5 KiB
TypeScript
63 lines
1.5 KiB
TypeScript
'use strict'
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import { spawn } from 'child_process'
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import { EventEmitter } from 'events'
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import readline from 'readline'
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import { Disposable } from 'vscode-languageserver-protocol'
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import { ListItem, ListTask } from '../types'
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import { disposeAll } from '../util'
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import workspace from '../workspace'
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const logger = require('../util/logger')('list-commandTask')
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export interface CommandTaskOption {
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/**
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* Command to run.
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*/
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cmd: string
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/**
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* Arguments of command.
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*/
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args: string[]
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cwd?: string
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env?: NodeJS.ProcessEnv
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/**
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* Runs for each line, return undefined for invalid item.
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*/
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onLine: (line: string) => ListItem | undefined
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}
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export default class CommandTask extends EventEmitter implements ListTask {
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private disposables: Disposable[] = []
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constructor(private opt: CommandTaskOption) {
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super()
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this.start()
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}
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private start(): void {
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let { cmd, args, cwd, onLine } = this.opt
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let proc = spawn(cmd, args, { cwd: cwd || workspace.cwd, windowsHide: true })
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this.disposables.push({
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dispose: () => {
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proc.kill()
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}
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})
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proc.on('error', e => {
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this.emit('error', e.message)
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})
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proc.stderr.on('data', chunk => {
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logger.error(`[${cmd} Error]`, chunk.toString('utf8'))
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})
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const rl = readline.createInterface(proc.stdout)
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rl.on('line', line => {
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let res = onLine(line)
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if (res) this.emit('data', res)
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})
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rl.on('close', () => {
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this.emit('end')
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})
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}
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public dispose(): void {
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disposeAll(this.disposables)
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}
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}
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