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https://github.com/pointybeard/helpers-functions-cli

A collection of functions relating to the command-line
https://github.com/pointybeard/helpers-functions-cli

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A collection of functions relating to the command-line

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# PHP Helpers: Command-line Functions

- Version: v1.1.10
- Date: July 29 2021
- [Release notes](https://github.com/pointybeard/helpers-functions-cli/blob/master/CHANGELOG.md)
- [GitHub repository](https://github.com/pointybeard/helpers-functions-cli)

A collection of functions relating to the command-line

## Installation

This library is installed via [Composer](http://getcomposer.org/). To install, use `composer require pointybeard/helpers-functions-cli` or add `"pointybeard/helpers-functions-cli": "~1.1"` to your `composer.json` file.

And run composer to update your dependencies:

$ curl -s http://getcomposer.org/installer | php
$ php composer.phar update

### Requirements

This library makes use of the [PHP Helpers: Command-line Input and Input Type Handlers](https://github.com/pointybeard/helpers-cli-input), [PHP Helpers: Flag Functions](https://github.com/pointybeard/helpers-functions-flags) (`pointybeard/helpers-functions-flags`), [PHP Helpers: Command-line Colour](https://github.com/pointybeard/helpers-cli-colours) (`pointybeard/helpers-cli-colours`) and [PHP Helpers: String Functions](https://github.com/pointybeard/helpers-functions-strings) packages. They are installed automatically via composer.

To include all the [PHP Helpers](https://github.com/pointybeard/helpers) packages on your project, use `composer require pointybeard/helpers` or add `"pointybeard/helpers": "~1"` to your composer file.

## Usage

This library is a collection convenience function for command-line tasks. They are included by the vendor autoloader automatically. The functions have a namespace of `pointybeard\Helpers\Functions\Cli`

The following functions are provided:

- `run_command()`
- `which()`
- `can_invoke_bash()`
- `is_su()`
- `run_command()`
- `usage()`
- `manpage()`
- `get_window_size()`
- `display_error_and_exit()`

Example usage:

```php
string(3) "103"
// 'lines' => string(2) "68"
// }

Cli\run_command("date", $out);
var_dump($out);
// string(29) "Mon 6 Apr 17:20:29 AEST 2020"

try{
Cli\run_command("not -a --command", $out, $err);
} catch(Cli\Exceptions\RunCommandFailedException $ex) {
var_dump($ex->getMessage(), $ex->getCommand(), $ex->getError());
}
// string(54) "Failed to run command. Returned: sh: 1: not: not found"
// string(16) "not -a --command"
// string(21) "sh: 1: not: not found"

echo Cli\manpage(
'test',
'1.0.2',
'A simple test command with a really long description. This is an intentionally very long argument description so we can check that word wrapping is working correctly. It should wrap to the window',
(new Input\InputCollection())
->add(
Input\InputTypeFactory::build('Argument')
->name('action')
->flags(Input\AbstractInputType::FLAG_REQUIRED)
->description('The name of the action to perform. This is an intentionally very long argument description so we can check that word wrapping is working correctly')
)
->add(
Input\InputTypeFactory::build('IncrementingFlag')
->name('v')
->flags(Input\AbstractInputType::FLAG_OPTIONAL | Input\AbstractInputType::FLAG_TYPE_INCREMENTING)
->description('verbosity level. -v (errors only), -vv (warnings and errors), -vvv (everything).')
->validator(new Input\Validator(
function (Input\AbstractInputType $input, Input\AbstractInputHandler $context) {
// Make sure verbosity level never goes above 3
return min(3, (int) $context->find('v'));
}
))
)
->add(
Input\InputTypeFactory::build('Option')
->name('P')
->flags(Input\AbstractInputType::FLAG_OPTIONAL | Input\AbstractInputType::FLAG_VALUE_OPTIONAL)
->description('Port to use for all connections.')
->default('3306')
)
->add(
Input\InputTypeFactory::build('LongOption')
->name('data')
->short('d')
->flags(Input\AbstractInputType::FLAG_OPTIONAL | Input\AbstractInputType::FLAG_VALUE_REQUIRED)
->description('Path to the input JSON data.')
),
Colour::FG_GREEN,
Colour::FG_WHITE,
[
'Examples' => 'php -f test.php -- import -vvv -d test.json',
]
).PHP_EOL;

// test 1.0.2, A simple test command with a really long description. This is an intentionally very long argument description so we can check that word wrapping is working correctly. It should wrap to the window
// Usage: test [OPTIONS]... ACTION...
//
// Arguments:
// ACTION The name of the action to perform. This is an intentionally very
// long argument description so we can check that word wrapping is
// working correctly
//
// Options:
// -v verbosity level. -v (errors only), -vv (warnings and errors),
// -vvv (everything).
// -P Port to use for all connections.
// -d, --data=VALUE Path to the input JSON data.
//
// Examples:
// php -f test.php -- import -vvv -d test.json

Cli\display_error_and_exit('Looks like something went wrong!', 'Fatal Error');
// Fatal Error
// Looks like something went wrong!

```

## Support

If you believe you have found a bug, please report it using the [GitHub issue tracker](https://github.com/pointybeard/helpers-functions-cli/issues), or better yet, fork the library and submit a pull request.

## Contributing

We encourage you to contribute to this project. Please check out the [Contributing documentation](https://github.com/pointybeard/helpers-functions-cli/blob/master/CONTRIBUTING.md) for guidelines about how to get involved.

## License

"PHP Helpers: Command-line Functions" is released under the [MIT License](http://www.opensource.org/licenses/MIT).