Simple node JS application to pull down all your Mobile Services table scripts and then watch the folder for changes, uploading back to the server any changes you make to your script. Potential improvements: There's very little error handling and it watches ALL files in the specified directory but could be improved to only watch the files that w…

app.js

var watch = require('watch');
var util = require('util');
var sys = require('sys');
var exec = require('child_process').exec; 
var service = process.argv[2];
var directory = process.argv[3] || __dirname;

console.log('Mobile Service name: ', service);
console.log('Directory: ', directory);

// This little function can be used to help invoke the 
// CLI on a child process. It always appends --json to the
// specified command and attempts to parse a non-error body
// into JavaScript objects to pass to the callback
function executeJsonCmd(cmd, callback) {
  exec(cmd + " --json", function(err, stdout, stderror) {
    if (err) { 
      callback(err);
    }
    else if (stderror) {
      callback(stderror);
    }
    else {
      if (stdout) {
        callback(null, JSON.parse(stdout));
      }
      else {
        callback(null, null);
      }
    }
  });
}

// first, download all the list of scripts and place them into the directory. 
// Overwrite if necessary.
executeJsonCmd("azure mobile script list " + service, function(error, scripts) {
    if (error) {
      console.error(error);
      return;
    }

    // we're only interested in table scripts for now
    var tableScripts = scripts.table;
    var downloadCount = 0;

    for (var i=0; i < tableScripts.length; i++) {
      var table = tableScripts[i];
      downloadScript(table, function(err) {
        if (err) {
          console.error(err);
        }
        else {
          downloadCount++;
          if (downloadCount == scripts.table.length) {
            startWatch();
          }
        }
      });
    }
});

// downloads a particular script and saves it to disk
function downloadScript(table, callback) {
  console.log("Downloading",table.table, table.operation);
  var file = util.format("%s.%s.js", table.table, table.operation)
  executeJsonCmd(util.format('azure mobile script download --override -f "%s/%s" %s table/%s', directory, file, service, file), 
  function(err, script) {
    console.log(util.format("Downloaded %s/%s.", directory, file));
    callback(err);
  });
}

// starts the file watch and uploads any changed files
function startWatch() {
  watch.createMonitor(directory,
  {
   'ignoreDotFiles' : true,
  },
  function (monitor) {
    console.log('Watching files in:', directory);
    monitor.on("created", function (f, stat) {
      console.log('File created - only file CHANGES are supported.', f);
    });
    monitor.on("changed", function (f, curr, prev) {
      console.log('File changed - uploading', f);
      executeJsonCmd(util.format("azure mobile script upload %s table%s -f %s", service, f.substring(f.lastIndexOf("/")), f), function(err) {
        if (err) console.error(err);
        else { console.log("Uploaded:", f); }
      });;
    });
    monitor.on("removed", function (f, stat) {
      console.log('File removed - only file CHANGES are supported.', f);
    });
  })
}