48 lines
1.1 KiB
JavaScript
48 lines
1.1 KiB
JavaScript
"use strict";
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// TODO: These should really be their own individual classes. Are
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// there enough commonalities to warrant a base class?
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const spawn = require('child_process').spawn;
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const EventEmitter = require('events').EventEmitter;
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module.exports.ChildProcessEmitter = class ChildProcessEmitter extends EventEmitter {
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constructor(command) {
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super();
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var cmd = command[0],
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args = command.slice(1);
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this.childProcess = spawn(cmd, args);
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this.childProcess.on('error', function(err) {
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this.emit('process_error', err);
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});
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this.childProcess.on('close', function(code, signal) {
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this.emit('close', code, signal);
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});
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this.childProcess.stdout.on('data', (data) => {
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var s = data.toString(), lines = s.split(/\n/g);
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for (var i = 0, l = lines.length; i < l; i++) {
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this.emit('message', lines[i]);
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}
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});
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this.childProcess.stderr.on('data', (data) => {
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this.emit('error', data);
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});
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}
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kill() {
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this.childProcess.kill();
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}
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send(message) {
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this.childProcess.stdin.write(message);
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}
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}
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// vim:set ts=2 sw=2 et:
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