dynograte/bin/dynograte.js

'use strict';

const commands = require('./commands');

let args = process.argv.slice(2);

let argly = require('argly')
  .createParser({
    '--help': {
      type: 'string',
      description: 'Show this help message'
    },
    '--dir -d': {
      type: 'string',
      description: 'Directory that contains the DynomoDB migrations'
    },
    '--migration -m': {
      type: 'string',
      description: 'Name of the migration to create'
    }
  })
  .usage('Usage: dynograte [options]')
  .example(
    'Create a migration file',
    'dynograte create --path ~/Proj/dynomodb-migrations --migration update-users-table')
  .validate(function(result) {
    if (result.help) {
      this.printUsage();
      process.exit(0);
    }
  })
  .onError(function(err) {
    this.printUsage();
    console.error(err);
    process.exit(1);
  });

if (args.length < 1) {
  argly.printUsage();
  process.exit(1);
} else {
  let command = commands[args[0]];
  if (!command) {
    argly.printUsage();
    process.exit(1);
  } else {
    args.shift();
    command(argly.parse(args));
  }
}