m4j

#!/usr/bin/env node

var child_process = require('child_process')
var fs = require('fs')

var instructions =  "Install Neo4j with Homebrew\n\n" +
                    "brew install neo4j\n\n" + 
                    "Export a NEO4J_PATH environment variable. You might want to put in your .bashrc. " + 
                    "It might look like this:\n\n" + 
                    "export NEO4J_PATH=/usr/local/Cellar/neo4j/2.1.7";

function help() {
  console.log(instructions);
}

function neo4jPath() {
  // export NEO4J_PATH=/usr/local/Cellar/neo4j/2.1.7
  var n4j = process.env.NEO4J_PATH
  if (!n4j)
    throw new Error("Please create an environment variable, NEO4J_PATH.")
  if (n4j[n4j.length-1] != '/')
    n4j += '/'
  return n4j
}

function getAppDir() {
  var dir = process.cwd()
  var path = dir.split('/')
  while (path.length > 0) {
    dir = path.join('/')
    if (fs.existsSync(dir + '/.meteor/'))
      return dir + '/'
    else
      path.splice(path.length-1,1)
  }

  throw new Error("Couldn't find a Meteor app on your path.") 
}

function setNeo4jPath() {
  // org.neo4j.server.database.location=data/graph.db
  var dbPath = getAppDir() + '.meteor/local/neo4j/graph.db'
  var file = neo4jPath() + 'libexec/conf/neo4j-server.properties'
  var data = fs.readFileSync(file, {encoding:'utf8'})
  var result = data.replace(/org\.neo4j\.server\.database\.location=.*/, 
                            'org.neo4j.server.database.location='+dbPath);
  fs.writeFileSync(file, result, {encoding:'utf8'})
}

function exec(name, args) {
  var child = child_process.spawn(name, args)
  child.stdout.on('data', function (data) {   process.stdout.write(data.toString());  });
  child.stderr.on('data', function (data) {   process.stdout.write(data.toString());  });
}

function startNeo4j() {
  exec('neo4j', ['start-no-wait'])
}

function stopNeo4j() {
  exec('neo4j', ['stop'])
}

var args = process.argv
args.splice(0,2)

if (args[0] == '--help') {
  help()
}

if (args[0] == 'start') {
  setNeo4jPath()
  startNeo4j()
}

if (args[0] == 'stop') {
  stopNeo4j()
}