Gluegun Menu

The Gluegun Menu is an extension for Gluegun CLIs. It generates an interactive menu structure from the commands of the CLI.

The extension can be integrated into any Gluegun project. It is already integrated in the lenne.Tech CLI Starter, which can be initialized comfortably via the lenne.Tech CLI.

Integration

It can be easily integrated into your CLI:

1. Install extension:

$ npm install @lenne.tech/gluegun-menu

2. Integrate extension as plugin:

src/cli.ts:

// ...
const cli = build()
  // ...
  .plugin(__dirname + '/../node_modules/@lenne.tech/gluegun-menu/dist', {
    commandFilePattern: '*.js',
    extensionFilePattern: '*.js'
  })
  // ...
  .create();
// ...

3. Prepare main commands

src/commands/YOUR_COMMAND/YOUR_COMMAND.ts:

import { GluegunMenuToolbox } from '@lenne.tech/gluegun-menu';

/**
 * YOUR_COMMAND menu
 */
module.exports = {
  name: 'YOUR_COMMAND',
  alias: ['YOUR_COMMAND_ALIAS'],
  description: 'YOUR_DESCRIPTION',
  hidden: true,
  run: async (toolbox: GluegunMenuToolbox) => {
    await toolbox.menu.showMenu('(PARANT_COMMANDS) YOUR_COMMAND');
  }
};

Parameters of showMenu

1. parentCommands?: string
   command name OR parent names + command name

2. options?: object

   • level?: number => Level of the current section (0 = main section)
   • headline?: string => Headline for the current section
   • showHelp?: boolean => If you want to show the help command at the top
   • hideBack?: boolean => If you want to hide the back command at the bottom
   • setCache?: boolean => Re-use these options in subsequent menus (doesn't apply for level, headline or setCache)
   • backLabel?: string => custom label to indicate go back action
   • cancelLabel?: string => custom label to indicate cancel action
   • byeMessage?: string => custom bye message

Note: If the options in the main menu are to be used, for example to define the headline, null or an empty string '' must be passed as the first parameter:
showMenu(null, {headline: 'Main menu'})

Example

Example file structure:

src/commands/
    section1/
        subsection1/
            subsection1.ts
            yyy1.ts
            yyy2.ts
        section1.ts
        xxx1.ts
        xxx2.ts
    section2/
        section2.ts
        zzz1.ts
        zzz2.ts
    brand.ts

src/commands/brand.ts:

import { GluegunMenuToolbox } from '@lenne.tech/gluegun-menu';

/**
 * Main menu
 */
module.exports = {
  name: 'brand',
  description: 'Welcome to brand CLI',
  hidden: true,
  run: async (toolbox: GluegunMenuToolbox) => {
    await toolbox.menu.showMenu();
  }
};

src/commands/section1/section1.ts:

import { GluegunMenuToolbox } from '@lenne.tech/gluegun-menu';

/**
 * Section1 menu
 */
module.exports = {
  name: 'section1',
  alias: ['s1'],
  description: 'Description for section1',
  hidden: true,
  run: async (toolbox: GluegunMenuToolbox) => {
    await toolbox.menu.showMenu('section1');
  }
};

src/commands/section1/subsection1/subsection1.ts:

import { GluegunMenuToolbox } from '@lenne.tech/gluegun-menu';

/**
 * Subsection1 menu
 */
module.exports = {
  name: 'subsection1',
  alias: ['sub1'],
  description: 'Description for subsection1',
  hidden: true,
  run: async (toolbox: GluegunMenuToolbox) => {
    await toolbox.menu.showMenu('section1 subsection1', { headline: 'Subsection1 commands' });
  }
};

Extensions of the toolbox

toolbox.menu

The menu extends the toolbox by the functionality to execute commands via a menu in the terminal (see above).

toolbox.fromMenu

Extends the toolbox to the possibility to determine during the execution of a command whether the command was called via the menu.

const NewCommand: GluegunCommand = {
  // ...
  run: async (toolbox: GluegunMenuToolbox) => {
    //...

    if (toolbox.fromMenu()) {
      console.log('I was called via the menu');
    } else {
      console.log('I was called via a direct command in the terminal');
    }

    // ...
  }
};
export default NewCommand;

Additional parameter options

toolbox.parameters.options.fromGluegunMenu

Flag that shows whether the command was called via the menu.

Thanks

Many thanks to the developers of Glugun and all the developers whose packages are used here.

Many thanks also to:

• pascal-klesse for the support during the development
• Tazaf for the idea to set the fromGlueguneMenu flag

License

MIT - see LICENSE