Version incrementer

version-inc.js

var replaceStream = require('replacestream')
var fs = require('fs')
var mode = process.argv[2]
var exec = require('child_process').exec

if(process.argv[2]) {
  fs.readFile(process.cwd() + '/VERSION', function(err, data) {
    var verArr = data.toString('utf8').split('\n')[0].split('.')
    var oldVer = verArr[0] + '.' + verArr[1] + '.' + verArr[2]

    switch(mode) {
      case 1:
        var newVer = verArr[0]+1 + '.' + verArr[1] + '.' + verArr[2]
        break
      case 2:
        var newVer = verArr[0] + '.' + verArr[1]+1 + '.' + verArr[2]
        break
      case 3:
        var newVer = verArr[0] + '.' + verArr[1] + '.' + verArr[2]+1
    }

    console.log(oldVer + ' ' + newVer)
    fs.createReadStream(process.cwd() + '/VERSION')
      .pipe(replaceStream(oldVer, newVer))
      .pipe(process.stdout)

    fs.exists('package.json', function() {
      fs.createReadStream(process.cwd() + '/package.json')
        .pipe(replaceStream(oldVer, newVer, { limit: 1}))
        .pipe(process.stdout)

        exec('npm shrinkwrap -dev')
    })

    fs.exists('bower.json', function() {
      fs.createReadStream(process.cwd() + '/bower.json')
        .pipe(replaceStream(oldVer, newVer, { limit: 1}))
        .pipe(process.stdout)
    })
  })
}