mecano/lib/wait/execute.js

Common functions for system deployment.

// Generated by CoffeeScript 1.11.1
var each;

module.exports = function(options, callback) {
  var modified, quorum_current;
  modified = false;
  if (typeof (options.argument != null)) {
    if (options.cmd == null) {
      options.cmd = options.argument;
    }
  }
  if (options.cmd == null) {
    return callback(new Error("Missing cmd: " + options.cmd));
  }
  if (!Array.isArray(options.cmd)) {
    options.cmd = [options.cmd];
  }
  options.quorum = options.quorum;
  if (options.quorum && options.quorum === true) {
    options.quorum = Math.ceil(options.cmd.length / 2);
  } else if (options.quorum == null) {
    options.quorum = options.cmd.length;
  }
  if (options.interval == null) {
    options.interval = 2000;
  }
  if (options.code_skipped == null) {
    options.code_skipped = 1;
  }
  options.log({
    message: "Entering wait for execution",
    level: 'DEBUG',
    module: 'mecano/wait/execute'
  });
  quorum_current = 0;
  modified = false;
  return each(options.cmd).call((function(_this) {
    return function(cmd, next) {
      var count, run;
      count = 0;
      if (quorum_current >= options.quorum) {
        return next();
      }
      run = function() {
        count++;
        options.log({
          message: "Attempt #" + count,
          level: 'INFO',
          module: 'mecano/wait/execute'
        });
        return _this.execute({
          cmd: cmd,
          code: options.code || 0,
          code_skipped: options.code_skipped
        }, function(err, ready) {
          if (!err && !ready) {
            setTimeout(run, options.interval);
            return;
          }
          if (err) {
            return next(err);
          }
          options.log({
            message: "Finish wait for execution",
            level: 'INFO',
            module: 'mecano/wait/execute'
          });
          quorum_current++;
          if (count > 1) {
            modified = true;
          }
          return next();
        });
      };
      return run();
    };
  })(this)).then(function(err) {
    return callback(err, modified);
  });
};

each = require('each');