Add: has_archive to post types rest endpoint.

[jorgefilipecosta]

Backports WordPress/gutenberg#42746 to the core. It adds an has_archive field to the post types endpoint.

Testing

Added the following snippet:

add_action( 'init', function() {
	register_post_type(
		'book',
		array(
			'label'                 => __( 'Book' ),
			'description'           => __( 'Books' ),
			'supports'              => array( 'title', 'editor' ),
			'taxonomies'            => array( 'category', 'post_tag' ),
			'hierarchical'          => false,
			'public'                => true,
			'show_ui'               => true,
			'show_in_menu'          => true,
			'show_in_admin_bar'     => true,
			'show_in_nav_menus'     => true,
			'show_in_rest'          => true,
			'can_export'            => true,
			'has_archive'           => true,
			'exclude_from_search'   => false,
			'publicly_queryable'    => true,
		)
	);
	flush_rewrite_rules();
} );

Pasted wp.apiFetch( { path: '/wp/v2/types' } ).then( console.log ); on the browser console and verified book post type contained has_archive true.

[jorgefilipecosta]

Committed in 34ace23.