machuga/index.js

## index.js
'use strict';

const spawn = require('child_process').spawn;
const express = require('express');
const app = express();
const server = require('http').createServer(app);
const compile = require("node-elm-compiler").compile;

app.listen(3000, function () {
  console.log('Example app listening on port 3000!');
});

app.get('/', function(req, res) {
  // This can go away if extracted into a module
  var stderr = '';
  var stdout = '';

  // List Elm main targets here
  const proc = compile(['./frontend/Client.elm'], {
    output: './public/client.js',
    // Currently need to wrap child_process.spawn with our own modifications
    // so that we can tell the stdio to pipe into our app so that we can use it
    // otherwise proc.stderr|proc.stdout are null.  This needs improved as I
    // currently lose terminal escape codes for sending back to our express process stdio.

    // PR'ing something to the node-elm-compiler repo to hopefully make this unnecessary
    spawn: function(command, args, options) {
      return spawn(command, args, Object.assign({}, options, {stdio: 'pipe'}));
    }
  });

  proc.on('close', function(status) {
    console.log("Finished compiling Elm modules", status);
    if (status === 0) {
      // If successful, awesome! Render whatever you'd like
      res.sendFile(__dirname + '/public/index.html');
    } else {
      // If we failed, let's dump stdout and stderr to the page for debugging
      res.send(`<html><body><pre>${stdout}\n${stderr}</pre></body></html>`);
      // Send the stdout/stderr back to our proc's if we'd like.
      console.log(stdout, stderr);
      // And now we'll just clean up those vars for reuse
      stderr = '';
      stdout = '';
    }
  });

  // Log the stdout/stderr data and append to string at top.
  proc.stdout.on('data', function(data) {
    stdout += data;
  });
  proc.stderr.on('data', function(data) {
    stderr += data;
  });
});

app.use(express.static('public'));
	'use strict';

	const spawn = require('child_process').spawn;
	const express = require('express');
	const app = express();
	const server = require('http').createServer(app);
	const compile = require("node-elm-compiler").compile;

	app.listen(3000, function () {
	console.log('Example app listening on port 3000!');
	});

	app.get('/', function(req, res) {
	// This can go away if extracted into a module
	var stderr = '';
	var stdout = '';

	// List Elm main targets here
	const proc = compile(['./frontend/Client.elm'], {
	output: './public/client.js',
	// Currently need to wrap child_process.spawn with our own modifications
	// so that we can tell the stdio to pipe into our app so that we can use it
	// otherwise proc.stderr\|proc.stdout are null. This needs improved as I
	// currently lose terminal escape codes for sending back to our express process stdio.

	// PR'ing something to the node-elm-compiler repo to hopefully make this unnecessary
	spawn: function(command, args, options) {
	return spawn(command, args, Object.assign({}, options, {stdio: 'pipe'}));
	}
	});

	proc.on('close', function(status) {
	console.log("Finished compiling Elm modules", status);
	if (status === 0) {
	// If successful, awesome! Render whatever you'd like
	res.sendFile(__dirname + '/public/index.html');
	} else {
	// If we failed, let's dump stdout and stderr to the page for debugging
	res.send(`<html><body><pre>${stdout}\n${stderr}</pre></body></html>`);
	// Send the stdout/stderr back to our proc's if we'd like.
	console.log(stdout, stderr);
	// And now we'll just clean up those vars for reuse
	stderr = '';
	stdout = '';
	}
	});

	// Log the stdout/stderr data and append to string at top.
	proc.stdout.on('data', function(data) {
	stdout += data;
	});
	proc.stderr.on('data', function(data) {
	stderr += data;
	});
	});

	app.use(express.static('public'));