ember-cli-windows

#! /usr/bin/env node

var program      = require('commander'),
    spawn        = require('child_process').spawn,
    path         = require('path'),
    chalk        = require('chalk'),
    prompt       = require('prompt'),
    fs           = require('fs'),
    version      = require('../package.json').version,
    _Promise     = require('zousan'),
    isWin        = /^win/.test(process.platform),
    args         = process.argv,
    dir          = process.cwd();
    
program
  .version(version)
  .option('-D, --defender', 'Configure Windows Defender')
  .option('-S, --search', 'Configure Windows Search')
  .option('-H, --headless', 'Run without prompting for confirmation')
  .parse(process.argv);

// Helper functions
function runPowershell(scriptPath, name) {
    return new _Promise(function (resolve) {
        var child = spawn('powershell.exe', ['-NoProfile', '-NoLogo', '& {& \'' + scriptPath + '\' -path \'' + dir + '\'}']),
            output = [];

        child.stdout.on('data', function (data) {
            output.push(data.toString());
        });

        child.stderr.on('data', function (data) {
            console.log('Configuration Error: ', data.toString());
            output.push(data.toString());
        });

        child.on('exit', function () {
            resolve(output);
        });
        child.stdin.end();
    });
}

function configureSearch() {
    var scriptPath = path.resolve(__dirname, '../powershell/setup-search.ps1'),
        name = 'Windows Search';

    return runPowershell(scriptPath, name).then(function () {
        console.log('Finished Search Configuration.');
    });
}

function configureDefender() {
    var scriptPath = path.resolve(__dirname, '../powershell/setup-defender.ps1'),
        name = 'Windows Defender';

    return runPowershell(scriptPath, name).then(function (output) {
        if (output && output.join().indexOf('fallback required') > -1) {
            console.log(chalk.red.bold('Automatic Defender configuration is only available on Windows 8 or newer.'));
            console.log(chalk.red.bold('Please follow the following steps for manual configuration:'));
            console.log('1) Click "Start", search for "Windows Defender" and open the application.');
            console.log('2) Click on "Tools" and then "Options".');
            console.log('3) Under "Excluded Files and Folders", add the following directory:');
            console.log(chalk.green(dir + '/tmp'));
            console.log('All done!');
        } else if (output && output.join().indexOf('is it disabled?') > -1) {
            console.log(chalk.bold.red('Windows Defender seems to be disabled.'));
            console.log('If that is correct, further configuration is not required.');
        } else {
            console.log('Finished Defender Configuration.');
        }
    });
}

function checkExecutionPolicy() {
    return new _Promise(function (resolve, reject) {
        var child = spawn('powershell.exe', ['-NoProfile', '-NoLogo', 'Get-ExecutionPolicy']),
            output = [], unrestricted, i;

        child.stdout.on('data', function (data) {
            output.push(data.toString());
        });

        child.stderr.on('data', function (data) {
            output.push(data.toString());
        });

        child.on('exit', function () {
            unrestricted = false;

            for (i = output.length - 1; i >= 0; i = i - 1) {
                if (output[i].indexOf('Unrestricted') > -1) {
                    unrestricted = true;
                    break;
                }
            }

            if (!unrestricted) {
                console.log(chalk.bold.red('Scripts cannot be executed on this system.'));
                console.log('To fix, please run the command below using PowerShell as Administrator and try again:');
                console.log('Set-ExecutionPolicy Unrestricted -Scope CurrentUser -Force');
                reject();
            } else {
                resolve();
            }
        });

        child.stdin.end();
    });
}

function executeConfiguration() {
    if (program.headless) {
        if (program.defender || (!program.defender && !program.search)) {
            console.log('Configuring Defender');
            configureDefender().then(function () {
                console.log('Finished Defender Configuration.');
            });   
        }
        if (program.search || (!program.defender && !program.search)) {
            console.log('Configuring Search');
            configureSearch().then(function () {
                console.log('Finished Search Configuration.');
            });
        }
    } else {
        prompt.message = 'Confirm';
        prompt.start();
        console.log(chalk.red.bold('Configure Windows for Ember-Cli Performance'));
        console.log('If you continue, this tool will automate the configuration of ' + getTarget());

        prompt.get([{
            name: 'confirm',
            description: 'Do you want to proceed? (Y/N)',
            pattern: /[yYnN]/,
            type: 'string',
            required: true
        }], function (err, results) {
            var confirm = results.confirm;

            if (err) {
                return console.error(err);
            }

            if (confirm === 'n' || confirm === 'N') {
                return console.log('Operation aborted');
            }

            if (program.defender && program.search || (!program.defender && !program.search)) {
                return configureSearch().then(configureDefender);
            }

            if (program.defender) {
                console.log('Configuring Defender');
                configureDefender();
            }

            if (program.search) {
                console.log('Configuring Search');
                configureSearch();
            }
        });
    }
}

function getTarget() {
    var target;
 
    if (program.defender && program.search || (!program.defender && !program.search)) {
        target = 'Windows Defender and Windows Search';
    } else if (program.defender && !program.search) {
        target = 'Windows Defender';
    } else if (program.search && !program.defender) {
        target = 'Windows Search';
    }
    
    return target;
}

function ensureTmp() {
    return new _Promise(function (resolve) {
        if (!fs.existsSync(dir + '/tmp')) {
            fs.mkdirSync(dir + '/tmp');
        }
        resolve();
    });
}

console.log('ember-cli-windows v' + version);

// Check OS
if (!isWin) {
    return console.log('This script configures Windows, but the OS is not Windows -  so we\'re done here.');
}

// Execute
ensureTmp()
.then(checkExecutionPolicy)
.then(executeConfiguration);