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inspector.js
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#!/usr/bin/env node
//
// couchjs replacement
//
// Copyright 2011 Iris Couch
//
// 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
//
// http://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.
module.exports = start
if(require.main === module)
main()
var fs = require('fs')
var util = require('util')
var child_process = require('child_process')
var log = require('./console').log
function start(debugPort) {
if(!debugPort || typeof debugPort != 'number')
throw new Error('Need a listen debugPort')
var webPort = debugPort + 1
var cmd = __filename
var args = [debugPort, webPort]
var opts =
{ 'cwd': __dirname
, 'stdio': 'pipe'
, 'detached': false
}
log('Start inspector: %s %j %j', cmd, args, opts)
var inspector = child_process.spawn(cmd, args, opts)
watch_inspector(inspector)
log('Enable remote debug pid=%d port=%d', process.pid, debugPort)
process.debugPort = debugPort
process.kill(process.pid, 'SIGUSR1')
}
function watch_inspector(child) {
child.stderr.on('data', function(body) {
log('Inspector STDERR: %s', body)
})
child.stdout.on('data', function(body) {
log('Inspector STDOUT: %s', body)
})
child.on('exit', function(code, signal) {
log('Inspector exited %d signal=%j', code, signal)
process.exit(code)
})
process.on('exit', function() {
log('Kill inspector upon exit: %d', child.pid)
process.kill(child.pid, 'SIGTERM')
})
}
function main() {
var debugPort = +process.argv[2]
var webPort = +process.argv[3]
if(!debugPort || !webPort)
throw new Error('Bad arguments: need debugPort and webPort')
console.log('Start inspector debugPort=%j webPort=%j', debugPort, webPort)
var DebugServer = require('node-inspector/lib/debug-server')
var server = new DebugServer
server.on('close', function() {
console.log('Server closed')
process.exit(0)
})
server.start({'webPort':webPort, 'debugPort':debugPort})
process.on('uncaughtException', function(er) {
console.log('Error:\n%s', er.stack)
})
}