wp2grav_exporter.php

<?php
/*
Plugin Name: Grav Export
Plugin URI:  https://www.github.com/jgonyea/wp2grav_exporter
Description: This plugin converts WP content for use in a GravCMS instance.
Version:     0.1.0
Author:      Jeremy Gonyea
Author URI:  https://gonyea.io
License:     MIT
License URI: https://mit-license.org/

*/

require 'vendor/autoload.php';

if ( defined( 'WP_CLI' ) && WP_CLI ) {
    $plugin_dir = plugin_dir_path( __FILE__ );
    // Load plugins.
    require_once ( $plugin_dir . "plugins/wp2grav-all.php" );
    require_once ( $plugin_dir . "plugins/wp2grav-posts.php" );
    require_once ( $plugin_dir . "plugins/wp2grav-post_types.php" );
    require_once ( $plugin_dir . "plugins/wp2grav-roles.php" );
    require_once ( $plugin_dir . "plugins/wp2grav-users.php" );
    

    
    // Register commands with wp-cli.
    WP_CLI::add_command( 'wp2grav-all', 'wp2grav_export_all' );
    WP_CLI::add_command( 'wp2grav-posts', 'wp2grav_export_posts' );
    WP_CLI::add_command( 'wp2grav-post_types', 'wp2grav_export_post_types' );
    WP_CLI::add_command( 'wp2grav-roles', 'wp2grav_export_roles' );
    WP_CLI::add_command( 'wp2grav-users', 'wp2grav_export_users' );
}


/**
 * Converts a Wordpress role name to a valid Grav group name.
 *
 * @param string $role_name
 *   Wordpress role to be converted for Grav group name.
 *
 * @return string
 *   Grav compatible group name.
 */
function convert_role_wp_to_grav($role_name) {
    return preg_replace('/\ /', '_', $role_name);
}

/**
 * Converts a Wordpress username to Grav.
 *
 * @param WP_USER $user
 *   Wordpress user to be converted.
 *
 * @return string
 *   Grav username.
 */
function convert_username_wp_to_grav($user) {
    // Default Grav settings. Make sure to reflect changes in Grav's system.yaml.
    $user_char_mim_limit = 4;
    $user_char_max_limit = 16;
  
    $username = $user->get('user_login');
  
    mb_strtolower($username);
  
    // Replace invalid characters with underscore.
    $patterns = array(
      'space' => '/\ /',
      'period' => '/\./',
      'apostrophe' => '/\'/',
    );
    $replacements = array(
      'space' => '_',
      'period' => '_',
      'apostrophe' => '_',
    );
    $username = preg_replace($patterns, $replacements, $username);
  
    // Pad short usernames.
    if (strlen($username) < $user_char_mim_limit) {
      $username = $username . $user->uid;
      $username = str_pad($username, $user_char_mim_limit, "_");
    }
  
    // Trim long usernames.
    if (strlen($username) > $user_char_max_limit) {
      $uid_length = strlen($user->uid);
      $username = substr($username, 0, ($user_char_max_limit - $uid_length));
      $username .= $user->uid;
    }
  
    return $username;
  }

/**
 * Connects to local filesystem.
 */
function connect_fs($url, $method, $context, $fields = null)
{
  global $wp_filesystem;
  if(false === ($credentials = request_filesystem_credentials($url, $method, false, $context, $fields))) 
  {
    return false;
  }

  //check if credentials are correct or not.
  if(!WP_Filesystem($credentials)) 
  {
    request_filesystem_credentials($url, $method, true, $context);
    return false;
  }

  return true;
}

function random_str( $length = 16 ) {
    $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
    $charactersLength = strlen($characters);
    $randomString = '';
    for ($i = 0; $i < $length; $i++) {
        $randomString .= $characters[rand(0, $charactersLength - 1)];
    }
    return $randomString;
  }

/**
 * Finds all posts of a post_type.
 *  This is used to find all posts of a certain post type.  The built-in function of get_post doesn't find drafts/ scheduled.
 */
function wp2grav_find_posts( $type = 'post' ) {
	global $wpdb;
	$query = "SELECT * FROM {$wpdb->prefix}posts where `post_type` = '" . $type . "'";
	$posts = $wpdb->get_results( $query, OBJECT, );
	return $posts;
}