Table of Contents

• Installation
• Triviality commander
  • Example
• Usage
• Thanks
• Reads

Installation

To install the stable version:

yarn add triviality-commander

This assumes you are using yarn as your package manager.

or

npm install triviality-commander

Triviality commander

Add integration for Commander in Triviality.

• Add option to split commands configuration over multiple Modules into multiple configuration services.
• Exposes Module for automatic version based on your package.json
• StartCommanderService service that response when no valid command is given.

Example

Example commander configuration:

import { Command } from 'commander';
import { CommanderConfigurationInterface } from 'triviality-commander';

export class CommanderHelloConfiguration implements CommanderConfigurationInterface {

  public async configure(program: Command) {
    program
      .command('hello <name>')
      .description('Say hello to someone')
      .option('-s, --shout', 'shout the hello message')
      .action((name, cmd: { shout: boolean }) => {
        const message = `hello ${name}`;
        console.log(cmd.shout ? message.toUpperCase() : message);
      });
  }
}

Module with configuration added to the configuration registry:

import { Module } from 'triviality';
import { CommanderConfigurationInterface } from 'triviality-commander';
import { CommanderHelloConfiguration } from './CommanderHelloConfiguration';
import { CommanderByeConfiguration } from './CommanderByeConfiguration';

export class CommanderExampleModule implements Module {
  public registries() {
    return {
      commanderConfigurations: (): CommanderConfigurationInterface[] => {
        return [
          this.commanderExampleConfiguration(),
          this.commanderByeExample(),
        ];
      },
    };
  }

  public commanderExampleConfiguration() {
    return new CommanderHelloConfiguration();
  }

  public commanderByeExample() {
    return new CommanderByeConfiguration();
  }
}

Add the module to the ContainerFactory

import { ContainerFactory } from 'triviality';
import { CommanderModule } from 'triviality-commander';
import { CommanderPackageVersionModule } from 'triviality-commander';
import { CommanderExampleModule } from './CommanderExampleModule';

ContainerFactory
  .create()
  .add(CommanderModule)
  .add(CommanderPackageVersionModule)
  .add(CommanderExampleModule)
  .build()
  .then((container) => {
    container
      .startCommanderService()
      .start();
  });

if we run the file, we can call the actual commands.

./node_modules/.bin/ts-node example/bootstrap.ts hello world
hello world

./node_modules/.bin/ts-node example/bootstrap.ts bye world
bye world

./node_modules/.bin/ts-node example/bootstrap.ts hello world --shout
HELLO WORLD

Version

CommanderPackageVersionModule exposes automatic version to commander based on your package.json

./node_modules/.bin/ts-node example/bootstrap.ts --version
0.3.1

Usage

To create a terminal application you can best use ts-node. Call your typescript service container from there.

#!/usr/bin/env node

require("ts-node/register");
require("./example/bootstrap");

Don't forget to give it executable permissions (chmod +x ./cli.js).

Now you can directly run your commands:

./cli.js hello world -s
HELLO WORLD

./cli.js bye world
bye world

Thanks

Special thanks to:

• Eric Pinxteren

Reads

commander

triviality