start.js

#! /usr/bin/env node

// Run ampm under nodemon. It watches changes to ampm-restart.json so that ampm
// can restart itself. It also restarts on crash.

// Really should be using nodemon as a module, but:
// https://github.com/stimulant/ampm/issues/12

var path = require("path");
var child_process = require("child_process");
var fs = require("fs");

var configFiles = process.argv[2] || "ampm.json";
var configFile = path.resolve(configFiles.split(",")[0]);
var appPath = path.dirname(configFile);
var restartFile = path.join(appPath, "ampm-restart.json");
var stateFile = path.join(appPath, "ampm-state.json");
var mode = process.argv[3] || "default";
var cmd = "nodemon";
var server = path.join(__dirname, "server.js");

if (process.platform === "win32") {
  // Gotta go to great lengths to avoid spaces in the path.
  // https://github.com/nodejs/node-v0.x-archive/issues/25895
  cmd = child_process
    .execSync("where nodemon")
    .toString()
    .split("\n")[1]
    .replace("Program Files", "PROGRA~1")
    .trim();
  server = child_process
    .execSync("where ampm")
    .toString()
    .split("\n")[1]
    .replace("Program Files", "PROGRA~1")
    .trim();
  server = path.dirname(server);
  if (server.toLowerCase().indexOf("yarn") !== -1) {
    server = path.join(server, "..", "config", "global");
  }
  server = path.join(server, "node_modules", "ampm", "server.js");
}

if (!fs.existsSync(restartFile)) {
  fs.writeFileSync(restartFile, "");
}
if (!fs.existsSync(stateFile)) {
  fs.writeFileSync(stateFile, "{}");
}

var args = [
  "--verbose",
  "--exitcrash",
  "--watch",
  configFile,
  "--watch",
  restartFile,
  "--ignore",
  "logs",
  "--ignore",
  stateFile,
  server,
  configFiles,
  mode,
];

// If there are arguments beyond the config file and mode, pass them to nodemon.
process.argv.slice(4).forEach(function (a, i) {
  args.splice(args.length - 3, 0, a);
});

function start() {
  var ampm = child_process.spawn(cmd, args, {
    stdio: "inherit",
  });
  ampm.on("close", start);
}

start();