index.js

#!/usr/bin/env node

// ----------------------------------------------------------------------------
//  See LICENSE.md file
// ----------------------------------------------------------------------------

const colors  = require('colors/safe');
const fs      = require('fs');
const path    = require('path');
const exec    = require('child_process').exec;
const commons = require('./src/common');

var args = {};
var printHelp = function printHelp(printAll) {
  var params = [
    {option: 'help', text: 'display available options'},
    {option: 'version', text: 'show version'},
    {option: 'update', text: 'update base container to latest'},
    {option: '', text: ''}, // placeholder
    {option: 'clean', text:'clean up the local container and generated files'},
    {option: 'connect <optional args>', text: 'mount the container on current path and sync tty'},
    {option: 'compile', text: 'compile the project on current path (needs iotz.json)'},
    {option: 'create <args>',  text: 'create an empty project.'},
    {option: 'init <extension> <optional target>', text:'initialize a project for current path'},
    {option: 'export', text: 'exports a Makefile'},
    {option: '', text: ''}, // placeholder
    {option: 'arduino <args>', text:'run arduino cli with given args'},
    {option: 'make <optional args>', text:'run Makefile command'},
    {option: 'mbed <args>', text:'run mbed cli with given args'},
    {option: 'raspberry', text: 'shows make, cmake, and gcc gnuhf versions'},
    {option: 'run <cmd>', text: 'run a bash command on the target system'}
  ];

  console.log(' ', 'usage:', colors.cyan('iotz'), '<cmd>', '[options]\n\n',
    colors.bold(' commands:\n'));

  for (var i in params) {
    var param = params[i];
    if (param.hidden) continue;
    var space = new Buffer(40 - param.option.length);
    space.fill(' ');
    console.log(' ', param.option, space + colors.bold(': '), param.text);
  }

  if (printAll) {
    console.log(`
    ${colors.bold('init && compile:')}
    iotz init && iotz compile

    iotz.json --> {
                    "toolchain": "arduino",
                    "target": "AZ3166:stm32f4:MXCHIP_AZ3166",
                    "filename": "sample.ino"
                  }

    iotz.json --> {
                    "toolchain": "mbed",
                    "target": "nucleo_l476rg",
                    "deps":
                      [
                        {
                          "name": "NDefLib",
                          "url" : "https://developer.mbed.org/teams/ST/code/NDefLib/#31f727872290"
                        }
                      ]
                  }

    ${colors.bold('CAUTION:')} 'target' and 'toolchain' names are case sensitive
    more at: https://aka.ms/iotc-boards

    ${colors.bold('OTHER examples')}
    run:
      iotz run ls -l
    create:
      iotz create arduino uno
      iotz create raspberry
    make:
      iotz make
    mbed:
      iotz mbed target -S

      iotz init <optional target name>
    arduino:
      iotz arduino --install-boards AZ3166:stm32f4

      iotz init <optional target name>
      - if you haven't configured an iotz.json file.
      use the list from https://aka.ms/iotc-boards
      i.e.
      iotz init uno
    `);
  } else {
    console.log('\n ', colors.bold('need more? try \'iotz help more\'\n'));
  }
};

if (process.argv.length < 3) {
  printHelp();
  process.exit(0);
}

args.command = process.argv[2].toLowerCase();
args.getCommand = function() { return args.command.trim(); };

args.get = function(command) {
  var index = 2;
  if (process.argv.length <= index + 1) {
    return -1;
  }

  var str = '';
  for (var i = index + 1; i < process.argv.length; i++) {
    str += process.argv[i] + ' ';
  }

  return str.trim();
};

if (args.getCommand() == 'version' || args.getCommand() == '-v') {
  try {
    var version = JSON.parse(fs.readFileSync(__dirname + '/package.json') + '').version;
    console.log('version ', colors.bold(version));
  } catch(e) {
    console.log(' -', colors.bold('error:'), e.message);
  }
  process.exit(0);
}

// verify if docker is installed (TODO: make it better!)
exec(
  'docker -v', function(err, data, stderr){
    if (err) {
      console.error(
        ' -', colors.bold('error:'),
        colors.bold('docker'), 'is required and not found.\n',
        '          visit', colors.bold('https://docs.docker.com/install/'),
        '\n');
      process.exit(1);
    } else {
      start();
    }
  }
);

function start() {
  var compile_path = path.resolve(process.cwd());

  if (args.getCommand() == 'update') {
    console.log(' -', 'updating.. (this may take some time)');
    exec('docker pull azureiot/iotz:latest', function(err, data, stderr) {
      if (err) {
        console.log(stderr.replace(/\\n/g, '\n'), '\n', data);
        console.error(' -', colors.bold('error:'), 'update has failed. See the output above.');
        process.exit(1);
      } else {
        console.log(data.replace(/\\n/g, '\n'));
        console.log(colors.bold(' - base container update was succesfull'));
        // update extensions and local package
        require('./extensions/index.js').updateExtensions(compile_path);
      }
    });
    return;
  }

  if (args.getCommand() == 'help' ||
      args.getCommand() == '-h' ||
      args.getCommand() == '-?' ||
      args.getCommand() == '--help') {

    printHelp(args.get(args.getCommand()) == 'more' || args.get(args.getCommand()) == 'all');
    return;
  }

  try {
    commons.runCommand(args, compile_path);
  } catch (e) {
    var message = e + '';
    if (message.indexOf('Bad response from Docker engine') > 0 ||
        message.indexOf('docker deamon is not running') > 0) {
      console.error(' -', colors.bold('error:'), 'Docker has not started yet?');
      console.error('   response from Docker: docker deamon is not running');
    } else if (message.indexOf('Client.Timeout exceeded while awaiting headers') > 0) {
      console.error(e.message ? e.message : e);
      console.error(colors.bold('Restarting Docker may help to solve this issue'));
    } else {
      console.error(e.message ? e.message : e);
    }
    process.exit(1);
  }
}