mecano/lib/cron_delete.js

Common functions for system deployment.

// Generated by CoffeeScript 1.9.1
var escape, execute, wrap;

escape = function(str) {
  return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
};

module.exports = function(options, callback) {
  return wrap(this, arguments, function(options, callback) {
    var crontab, do_list, do_write, modified, ref;
    if (!(((ref = options.cmd) != null ? ref.length : void 0) > 0)) {
      return callback(new Error('valid cmd is required'));
    }
    if (options.user != null) {
      if (typeof options.log === "function") {
        options.log("Using user " + options.user + " [INFO]");
      }
      crontab = "crontab -u " + options.user;
    } else {
      if (typeof options.log === "function") {
        options.log('Using default user [INFO]');
      }
      crontab = "crontab";
    }
    modified = false;
    do_list = function() {
      return execute({
        cmd: crontab + " -l",
        ssh: options.ssh,
        log: options.log,
        stdout: options.stdout,
        stderr: options.stderr
      }, function(err, _, stdout, stderr) {
        var i, j, job, jobs, len, myjob, regex;
        if (err && !/^no crontab for/.test(stderr)) {
          return callback(err);
        }
        if (err) {
          return next(err);
        }
        myjob = options.when ? escape(options.when) : '.*';
        myjob += escape(" " + options.cmd);
        regex = new RegExp(myjob);
        jobs = stdout.split('\n');
        jobs.pop();
        for (i = j = 0, len = jobs.length; j < len; i = ++j) {
          job = jobs[i];
          if (regex.test(job)) {
            if (typeof options.log === "function") {
              options.log("Job '" + job + "' matches. Removing from list [WARN]");
            }
            modified = true;
            jobs.splice(i, 1);
          }
        }
        return do_write(jobs);
      });
    };
    do_write = function(jobs) {
      if (!modified) {
        if (typeof options.log === "function") {
          options.log('No Job matches. Skipping [INFO]');
        }
        if (!modified) {
          return callback(null, false);
        }
      }
      return execute({
        cmd: "echo -e '" + (jobs.join('\\n')) + "' | " + crontab + " -",
        ssh: options.ssh,
        log: options.log,
        stdout: options.stdout,
        stderr: options.stderr
      }, callback);
    };
    return do_list();
  });
};

wrap = require('./misc/wrap');

execute = require('./execute');