Add ability to launch with latest stable WordPress 4 (#150)

* Add ability to launch with latest stable WordPress 4

* Bump version to 4.6

features/wordpress-4.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * This feature provides the ability to launch with latest stabel WordPress 4.
+ */
+namespace jn;
+
+add_action( 'jurassic_ninja_init', function() {
+	$defaults = [
+		'wordpress-4' => false,
+	];
+
+	add_action( 'jurassic_ninja_add_features_before_auto_login', function( &$app = null, $features, $domain ) use ( $defaults ) {
+		$features = array_merge( $defaults, $features );
+		if ( $features['wordpress-4'] ) {
+			debug( '%s: Updating core to latest WordPress 4 latest stable release', $domain );
+			update_to_wordpress_4_latest();
+		}
+	}, 10, 3 );
+
+	add_filter( 'jurassic_ninja_rest_feature_defaults', function( $defaults ) {
+		return array_merge( $defaults, [
+			'wordpress-4' => false,
+		] );
+	} );
+
+	add_filter( 'jurassic_ninja_rest_create_request_features', function( $features, $json_params ) {
+		if ( isset( $json_params['wordpress-4'] ) ) {
+			$features['wordpress-4'] = $json_params['wordpress-4'];
+		}
+		return $features;
+	}, 11, 2 );
+
+} );
+
+add_action( 'jurassic_ninja_admin_init', function() {
+	add_filter( 'jurassic_ninja_settings_options_page_default_plugins', function( $fields ) {
+		$field = [
+			'wordpress_4_latest' => [
+				'id' => 'wordpress_4_latest',
+				'title' => __( 'Latest tag for WordPress 4', 'jurassic-ninja' ),
+				'text' => __( 'Which version to run when wordpress-4 requested', 'jurassic-ninja' ),
+				'placeholder' => '4.9.8',
+				'value' => '4.9.8',
+				'checked' => false,
+			],
+		];
+		return array_merge( $fields, $field );
+	}, 10 );
+} );
+
+/**
+ * Updates WordPress to latest tag available for WordPress 4.
+ */
+function update_to_wordpress_4_latest() {
+	$wordpress_4_latest = settings( 'wordpress_4_latest', '4.9.8' );
+	// We need --force because this may be a downgrade
+	$cmd = "wp core update --version=$wordpress_4_latest --force && wp core update-db";
+	add_filter( 'jurassic_ninja_feature_command', function ( $s ) use ( $cmd ) {
+		return "$s && $cmd";
+	} );
+}

jurassic.ninja.php

@@ -3,7 +3,7 @@
 /*
  * Plugin Name: Jurassic Ninja
  * Description: Launch ephemeral instances of WordPress + Jetpack using ServerPilot and an Ubuntu Box.
- * Version: 4.5
+ * Version: 4.6
  * Author: Automattic
  **/
 

lib/stuff.php

@@ -71,6 +71,7 @@ function require_feature_files() {
 		'/features/gutenpack.php',
 		'/features/gutenberg-master.php',
 		'/features/gutenberg-nightly.php',
+		'/features/wordpress-4.php',
 	];
 
 	$available_features = apply_filters( 'jurassic_ninja_available_features', $available_features );
@@ -632,4 +633,3 @@ function subdomain_is_used( $subdomain ) {
 	$results = db()->get_results( "select * from sites where domain='$domain' limit 1", \ARRAY_A );
 	return count( $results ) !== 0;
 }
-