the-shepherd/lib/util/config.js

Control a herd of wild processes.

// Generated by CoffeeScript 2.5.1
(function() {
  var $, Actions, Fs, Groups, Health, Nginx, Output, _reading, basePath, configFile, echo, expandPath, parseArguments, readConfig, saveConfig, verbose, warn;

  ({$, echo, warn, verbose} = require('../common'));

  Fs = require('fs');

  Nginx = require('../daemon/nginx');

  Output = require('../daemon/output');

  Health = require('../daemon/health');

  ({Groups} = require('../daemon/groups'));

  ({parseArguments} = require('./parse-args'));

  ({configFile, basePath, expandPath} = require('../files'));

  Actions = null;

  _reading = false;

  saveConfig = function(cb) {
    var buf, clean;
    if (_reading) {
      verbose("Cannot call saveConfig() while reading configuration file.");
      return typeof cb === "function" ? cb(null, false) : void 0;
    }
    verbose("Saving config...");
    clean = function(o) {
      var ref;
      return ((ref = o != null ? o.replace(basePath, '%') : void 0) != null ? ref : '') + ((o != null ? o.length : void 0) && "\n" || "");
    };
    buf = clean(Output.toConfig());
    Groups.forEach(function(group) {
      var all_disabled, i, j, len, len1, proc, results;
      buf += clean(group.toConfig());
      all_disabled = true;
      for (i = 0, len = group.length; i < len; i++) {
        proc = group[i];
        if (!proc.enabled) {
          continue;
        }
        all_disabled = false;
        break;
      }
      if (all_disabled) {
        return buf += `disable --group ${group.name}\n`;
      } else {
        results = [];
        for (j = 0, len1 = group.length; j < len1; j++) {
          proc = group[j];
          if (!proc.enabled) {
            results.push(buf += `disable --instance ${proc.id}\n`);
          }
        }
        return results;
      }
    });
    buf += clean(Health.toConfig());
    buf += clean(Nginx.toConfig());
    buf += "start\n";
    Fs.writeFile(expandPath(configFile), buf, function(err) {
      return typeof cb === "function" ? cb(err, false) : void 0;
    });
    return true;
  };

  readConfig = function(cb) {
    var _err_text, config_lines, done, err, next;
    if (_reading) {
      return typeof cb === "function" ? cb(null, false) : void 0;
    }
    _reading = true;
    _err_text = "";
    config_lines = null;
    done = () => {
      if (_reading) {
        verbose("Finished reading config...", configFile, _err_text);
        _reading = false;
        return typeof cb === "function" ? cb(null, true) : void 0;
      }
    };
    try {
      config_lines = String(Fs.readFileSync(expandPath(configFile))).split("\n");
    } catch (error) {
      err = error;
      _err_text = "(empty config file)";
      return done();
    }
    (next = () => {
      var _cmd, cmd, line;
      if (!((config_lines != null ? config_lines.length : void 0) > 0)) {
        return done();
      }
      try {
        line = config_lines.shift();
        if (line.length === 0) {
          return next();
        }
        echo("config:", line);
        cmd = parseArguments(line);
        if ((_cmd = cmd._[0]) in Actions) {
          return Actions[_cmd].onMessage(Actions[_cmd].toMessage(cmd), null, next);
        } else {
          return next();
        }
      } catch (error) {
        err = error;
        console.error(err.stack);
        _err_text = String(err);
        return done();
      }
    })();
    return true;
  };

  Object.assign(module.exports, {saveConfig, readConfig});

  ({Actions} = require('../actions'));

}).call(this);