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https://github.com/lennetech/cli-plugin-helper

A Helper for CLI Projects
https://github.com/lennetech/cli-plugin-helper

Last synced: 5 months ago
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A Helper for CLI Projects

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# CLI Plugin: Helper

The CLI-Plugin: Helper integrates the helper extension for [Gluegun](https://infinitered.github.io/gluegun) CLIs.

It contains

- `showMenu`: A menu maker for your commands
- `getConfig`: Extends the handling of the configuration, also for ~/.
- `getDir`: Extension of path.join that can handle homedir (~) and automatic OS-specific separator conversion
- `getInput`: Checks inputs (e.g. from parameters) and asks if they are not set
- `msToMinutesAndSeconds`: Converts milliseconds to minutes:seconds string
- `readFile`: Read a file and get the (JSON) data
- `trim`: Extension of the string.trim that also replaces line breaks
- `updateCli`: Helps you to keep your CLI up to date
- ...

Menu in action:

![Gluegun Menu Demo](assets/demo.gif)

## Integration

It can be easily integrated into your CLI:

### 1. Install extension:

```bash
$ npm install @lenne.tech/cli-plugin-helper
```

### 2. Integrate extension as plugin:

`src/cli.ts`:

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

### 3. Extend interface:

`src/interfaces/extended-gluegun-toolbox.ts`:

```typescript
import { Helper } from '@lenne.tech/cli-plugin-helper';
// ...

/**
* Extended GluegunToolbox
*/
export interface ExtendedGluegunToolbox extends GluegunToolbox {
helper: Helper;
// ...
}
```

### 4. Prepare main commands:

`src/commands/YOUR_COMMAND/YOUR_COMMAND.ts`:

```typescript
import { IHelperExtendedGluegunToolbox } from '@lenne.tech/cli-plugin-helper';

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

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`:

```typescript
import { IHelperExtendedGluegunToolbox } from '@lenne.tech/cli-plugin-helper';

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

`src/commands/section1/section1.ts`:

```typescript
import { IHelperExtendedGluegunToolbox } from '@lenne.tech/cli-plugin-helper';

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

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

```typescript
import { IHelperExtendedGluegunToolbox } from '@lenne.tech/cli-plugin-helper';

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

## Thanks

Many thanks to the developers of [Glugun](https://infinitered.github.io/gluegun)
and all the developers whose packages are used here.

## License

MIT - see LICENSE