README

• Version: v1.1.10
• Date: July 29 2021
• Release notes
• GitHub repository

A collection of functions relating to the command-line

Installation

This library is installed via Composer. 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, PHP Helpers: Flag Functions (pointybeard/helpers-functions-flags), PHP Helpers: Command-line Colour (pointybeard/helpers-cli-colours) and PHP Helpers: String Functions packages. They are installed automatically via composer.

To include all the PHP 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

declare(strict_types=1);
include __DIR__.'/vendor/autoload.php';

use pointybeard\Helpers\Cli\Input;
use pointybeard\Helpers\Cli\Colour\Colour;
use pointybeard\Helpers\Functions\Cli;

var_dump(Cli\which("ls"));
// string(11) "/usr/bin/ls"

var_dump(Cli\can_invoke_bash());
// bool(true)

var_dump(Cli\is_su());
// bool(false)

var_dump(Cli\get_window_size());
// array(2) {
//   'cols' => 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, 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 for guidelines about how to get involved.

License

"PHP Helpers: Command-line Functions" is released under the MIT License.