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<?php
/**
* WP CLI command class
*
* @package Rhubarb\RedisCache
*/
namespace Rhubarb\RedisCache\CLI;
use WP_CLI;
use WP_CLI_Command;
use Exception;
use Rhubarb\RedisCache\Plugin;
use Rhubarb\RedisCache\Predis;
defined( '\\ABSPATH' ) || exit;
/**
* Enables, disabled, flushes, and checks the status of the object cache.
*
* @package wp-cli
*/
class Commands extends WP_CLI_Command {
/**
* Show the Redis object cache status and (when possible) client.
*
* ## EXAMPLES
*
* wp redis status
*/
public function status() {
$roc = Plugin::instance();
require_once __DIR__ . '/../diagnostics.php';
}
/**
* Enables the Redis object cache.
*
* Default behavior is to create the object cache drop-in,
* unless an unknown object cache drop-in is present.
*
* ## EXAMPLES
*
* wp redis enable
*/
public function enable() {
global $wp_filesystem;
$plugin = Plugin::instance();
if ( $plugin->object_cache_dropin_exists() ) {
if ( $plugin->validate_object_cache_dropin() ) {
WP_CLI::line( __( 'Redis object cache already enabled.', 'redis-cache' ) );
} else {
WP_CLI::error( __( 'A foreign object cache drop-in was found. To use Redis for object caching, run: `wp redis update-dropin`.', 'redis-cache' ) );
}
} else {
$flush = $this->flush_redis();
if ( is_string( $flush ) ) {
// translators: %s = The Redis connection error message.
WP_CLI::error( sprintf( __( "Object cache could not be enabled. Redis server is unreachable: %s", 'redis-cache' ), $flush ) );
}
WP_Filesystem();
$copy = $wp_filesystem->copy(
WP_REDIS_PLUGIN_PATH . '/includes/object-cache.php',
WP_CONTENT_DIR . '/object-cache.php',
true,
FS_CHMOD_FILE
);
if ( $copy ) {
WP_CLI::success( __( 'Object cache enabled.', 'redis-cache' ) );
} else {
WP_CLI::error( __( 'Object cache could not be enabled.', 'redis-cache' ) );
}
}
}
/**
* Disables the Redis object cache.
*
* Default behavior is to delete the object cache drop-in,
* unless an unknown object cache drop-in is present.
*
* ## EXAMPLES
*
* wp redis disable
*/
public function disable() {
global $wp_filesystem;
$plugin = Plugin::instance();
if ( ! $plugin->object_cache_dropin_exists() ) {
WP_CLI::error( __( 'No object cache drop-in found.', 'redis-cache' ) );
} else {
if ( ! $plugin->validate_object_cache_dropin() ) {
WP_CLI::error( __( 'A foreign object cache drop-in was found. To use Redis for object caching, run: `wp redis update-dropin`.', 'redis-cache' ) );
} else {
WP_Filesystem();
if ( $wp_filesystem->delete( WP_CONTENT_DIR . '/object-cache.php' ) ) {
$this->flush_redis();
WP_CLI::success( __( 'Object cache disabled.', 'redis-cache' ) );
} else {
WP_CLI::error( __( 'Object cache could not be disabled.', 'redis-cache' ) );
}
}
}
}
/**
* Updates the Redis object cache drop-in.
*
* Default behavior is to overwrite any existing object cache drop-in.
*
* ## EXAMPLES
*
* wp redis update-dropin
*
* @subcommand update-dropin
*/
public function update_dropin() {
global $wp_filesystem;
WP_Filesystem();
$copy = $wp_filesystem->copy(
WP_REDIS_PLUGIN_PATH . '/includes/object-cache.php',
WP_CONTENT_DIR . '/object-cache.php',
true,
FS_CHMOD_FILE
);
if ( $copy ) {
$flush = $this->flush_redis();
if ( is_string( $flush ) ) {
// translators: %s = The Redis connection error message.
WP_CLI::error( sprintf( __( "Object cache drop-in could not be updated. Redis server is unreachable: %s", 'redis-cache' ), $flush ) );
}
WP_CLI::success( __( 'Updated object cache drop-in and enabled Redis object cache.', 'redis-cache' ) );
} else {
WP_CLI::error( __( 'Object cache drop-in could not be updated.', 'redis-cache' ) );
}
}
/**
* Flush the Redis cache via Predis.
*
* @return bool|string
*/
protected function flush_redis() {
try {
return (new Predis)->flushOrFail();
} catch ( Exception $exception ) {
error_log( $exception ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log
return $exception->getMessage();
}
}
}