twreporter-react/node_modules_node_5/piping/lib/piping.js

React-Redux site for The Reporter Foundation in Taiwan

// Generated by CoffeeScript 1.10.0
(function() {
  var cluster, colors, options, path;

  cluster = require("cluster");

  path = require("path");

  colors = require("colors");

  options = {
    hook: false,
    includeModules: false,
    main: require.main.filename,
    ignore: /(\/\.|~$)/,
    respawnOnExit: true
  };

  module.exports = function(ops) {
    var chokidar, fixChokidar, initial, key, lastErr, respawnPending, value, watcher;
    if (typeof ops === "string" || ops instanceof String) {
      options.main = path.resolve(ops);
    } else {
      for (key in ops) {
        value = ops[key];
        options[key] = value;
      }
    }
    if (cluster.isMaster) {
      cluster.setupMaster({
        exec: path.join(path.dirname(module.filename), "launcher.js")
      });
      chokidar = require("chokidar");
      fixChokidar = function(file) {
        return file.slice(0, -1) + "[" + file.slice(-1) + "]";
      };
      initial = options.hook ? fixChokidar(options.main) : path.dirname(options.main);
      watcher = chokidar.watch(initial, {
        ignored: options.ignore,
        ignoreInitial: true,
        usePolling: options.usePolling,
        interval: options.interval || 100,
        binaryInterval: options.binaryInterval || 300
      });
      cluster.fork();
      respawnPending = false;
      lastErr = "";
      cluster.on("exit", function(dead, code, signal) {
        var hasWorkers, id, ref, worker;
        hasWorkers = false;
        ref = cluster.workers;
        for (id in ref) {
          worker = ref[id];
          hasWorkers = true;
        }
        if (!hasWorkers && (respawnPending || options.respawnOnExit)) {
          cluster.fork();
          return respawnPending = false;
        }
      });
      cluster.on("online", function(worker) {
        worker.send(options);
        return worker.on("message", function(message) {
          if (message.err && (!options.respawnOnExit || message.err !== lastErr)) {
            console.log("[piping]".bold.red, "can't execute file:", options.main);
            console.log("[piping]".bold.red, "error given was:", message.err);
            if (options.respawnOnExit) {
              lastErr = message.err;
              return console.log("[piping]".bold.red, "further repeats of this error will be suppressed...");
            }
          } else if (message.file) {
            if (options.usePolling) {
              return watcher.add(message.file);
            } else {
              return watcher.add(fixChokidar(message.file));
            }
          }
        });
      });
      watcher.on("change", function(file) {
        var id, ref, worker;
        console.log("[piping]".bold.red, "File", path.relative(process.cwd(), file), "has changed, reloading.");
        ref = cluster.workers;
        for (id in ref) {
          worker = ref[id];
          respawnPending = true;
          process.kill(worker.process.pid, 'SIGTERM');
        }
        if (!respawnPending) {
          return cluster.fork();
        }
      });
      return false;
    } else {
      return true;
    }
  };

}).call(this);