Wordpress: Disable Infinite Scroll for custom post type archives and set posts_per_page

disable-infinite-scroll.php

if ( ! function_exists( 'cpt_archives_settings' ) ) :

	add_action( 'pre_get_posts', 'themename_cpt_archives_settings' );
	
	// Pass the $query argument into the action.
	function themename_cpt_archives_settings( $query ) {
	    
	    // Define the context.
	    // Not on dashboard pages when inside the main query only on cpt archives.   
	    if( ! is_admin() && $query->is_main_query() && is_post_type_archive( 'cpt_name_goes_here' ) ) {
	    	
	    	// remove infinite scroll inside this context
	    	remove_theme_support( 'infinite-scroll' );
	        
	        // set query vars for this context
	        $query->set( 'posts_per_page', '-1' );
	    
	    }

	}
endif;