WP Install Command - Copy command to install plugins trough WP-CLI or Composer easily.

install-commands.php

<?php
/*
Plugin Name: Install Commands
Plugin URI:
Description: Copy command to install plugins trough WP-CLI or Composer.
Author: Allyson Souza
Version: 1.0
Author URI: https://hastedesign.com.br
Text Domain: install-commands
Domain Path: /languages

GNU General Public License, Free Software Foundation <http://creativecommons.org/licenses/GPL/2.0/>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

/**
 * Create the option page.
 * Hook: admin_menu
 *
 * @return void
 */
function install_commands_options_page() {
	add_options_page(
		'Install Commnads',
		'Install Commands',
		'manage_options',
		'install-commands',
		'install_commands_html'
	);
}
add_action( 'admin_menu', 'install_commands_options_page' );


/**
 * Create the option page HTML.
 *
 * @return void
 */
function install_commands_html() {
	?>
	<div class="wrap">
		<h1><?php esc_html_e( 'Install Commands', 'install-commands' ); ?></h1>
		<h2 class="title"><?php esc_html_e( 'Composer WPackagist command', 'install-commands' ); ?></h2>
		<textarea class="large-text code" rows="10" cols="50"><?php wpackagist_command(); ?></textarea>
		<h2 class="title"><?php esc_html_e( 'WP-CLI command', 'install-commands' ); ?></h2>
		<textarea class="large-text code" rows="10" cols="50"><?php wpcli_command(); ?></textarea>
		<h2 class="title"><?php esc_html_e( 'Parameters', 'install-commands' ); ?></h2>
		<p><?php esc_html_e( 'Set some parameters to customize the install commands generation. You can pass any character as separator, and choose if you want installed or only active plugins, for example.', 'install-commands' ); ?></p>
		<form action="" method="post">
			<table class="form-table" role="presentation">
				<tbody>
					<tr>
						<th scope="row">
							<label for="separator"><?php esc_html_e( 'Separator', 'install-commands' ); ?></label>
						</th>
						<td>
							<input type="text" id="separator" class="small-text" name="separator" />
							<p class="description" id="tagline-description"><?php printf( esc_html__( 'Choose the separator between commands, i.e: %s', 'install-commands' ), '<pre> ; | && | , </pre>' ); ?></p>
						</td>
					</tr>
					<tr>
						<th scope="row">
							<label for="separator"><?php esc_html_e( 'Plugins', 'install-commands' ); ?></label>
						</th>
						<td>
							<div class="plugin-options">
								<p>
									<input type="radio" name="plugins-included" id="plugins-active" value="active" checked="checked">
									<label for="plugins-active"><?php esc_html_e( 'Active', 'install-commands' ); ?></label>
								</p>
								<p>
									<input type="radio" name="plugins-included" id="plugins-installed" value="installed">
									<label for="plugins-installed"><?php esc_html_e( 'Installed', 'install-commands' ); ?></label>
								</p>
							</div>
						</td>
					</tr>
				</tbody>
			</table>
			<p class="submit"><input type="submit" name="submit" id="submit" class="button button-primary" value="<?php esc_html_e( 'Generate commands', 'install-commands' ); ?>"></p>
		</form>
	</div>
	<?php
}

/**
 * Output WPackagist Composer require command.
 */
function wpackagist_command() {
	$plugins_include = get_plugins_included();
	$plugins         = get_plugin_list( $plugins_include );
	$slugs           = array();

	foreach ( $plugins as $plugin => $meta ) {
		if ( ! is_array( $meta ) ) {
			$plugin = $meta;
		}

		$slugs[] = 'composer require wpackagist-plugin/' . sanitize_title( get_plugin_slug( $plugin ) );
	}

	print_r( implode( ' ' . get_separator() . ' ', $slugs ) );
}

/**
 * Output WP-CLI install command.
 */
function wpcli_command() {
	$plugins_include = get_plugins_included();
	$plugins         = get_plugin_list( $plugins_include );
	$slugs           = array();

	foreach ( $plugins as $plugin => $meta ) {
		if ( ! is_array( $meta ) ) {
			$plugin = $meta;
		}

		$slugs[] = 'wp plugin install ' . sanitize_title( get_plugin_slug( $plugin ) ) . ' --activate';
	}

	print_r( implode( ' ' . get_separator() . ' ', $slugs ) );}

/**
 * Return the plugin slug.
 *
 * @param string $plugin
 * @return string $slug
 */
function get_plugin_slug( $plugin ) {
	$slash_pos = strpos( $plugin, '/' );

	if ( ! $slash_pos === false ) {
		$slug = substr( $plugin, 0, $slash_pos );
	} else {
		$slug = str_replace( '.php', '', $plugin );
	}

	return $slug;
}

/**
 * Return the plugin list according to plugins to be included:
 * active or installed.
 *
 * @param string $plugins_include  'active' or 'installed'.
 * @return array                   Plugin list.
 */
function get_plugin_list( $plugins_include ) {
	switch ( $plugins_include ) {
		case 'active';
			return get_active_plugins();
		case 'installed';
			return get_plugins();
		default;
			return get_plugins();
		break;
	}
}

/**
 * Return active plugins list.
 *
 * @return array
 */
function get_active_plugins() {
	return get_option( 'active_plugins' );
}

/**
 * Get separator
 *
 * @return string Separator.
 */
function get_separator() {
	$separator = $_REQUEST['separator'] ?? ';';
	return sanitize_text_field( $separator );
}

/**
 * Get plugins included.
 */
function get_plugins_included() {
	$included = $_REQUEST['plugins-included'] ?? 'active';
	return sanitize_text_field( $included );
}

To-Do: get the plugin versions to generate the commands.