update_sw_js()

Usage

This function runs automatically, so it is not called manually. Is this incorrect?

Additional Notes

This function looks for variables set between //BEGIN Automated edits and //END Automated edits in the service worker JavaScript file (default: sw.js)

Source File

Located in /libs/Functions.php on line 267.

4 Hooks

Find these filters and actions in the source code below to hook into them. Use do_action() and add_filter() in your functions file or plugin.

Filters

"pre_nebula_update_swjs"
"nebula_sw_cache_version"
Need a new filter hook? Request one here.

Actions

"nebula_wrote_sw_js"
"qm/info"
Need a new action hook? Request one here.

PHP

        public function update_sw_js($version=false){
            $this->timer('Update SW');

            $override = apply_filters('pre_nebula_update_swjs', null);
            if ( isset($override) ){return;}

            if ( empty($version) ){
                $version = apply_filters('nebula_sw_cache_version', $version);
            }

            WP_Filesystem();
            global $wp_filesystem;
            $sw_js = $wp_filesystem->get_contents($this->sw_location(false));

            if ( !empty($sw_js) ){
                $find = array(
                    "/(const THEME_NAME = ')(.+)(';)/m",
                    "/(const NEBULA_VERSION = ')(.+)(';)(.+$)?/m",
                    "/(const OFFLINE_URL = ')(.+)(';)/m",
                    "/(const OFFLINE_IMG = ')(.+)(';)/m",
                    "/(const META_ICON = ')(.+)(';)/m",
                    "/(const MANIFEST = ')(.+)(';)/m",
                    "/(const HOME_URL = ')(.+)(';)/m",
                    "/(const START_URL = ')(.+)(';)/m",
                );

                //$new_cache_name = "nebula-" . strtolower(get_option('stylesheet')) . "-" . random_int(100000, 999999); //PHP 7.4 use numeric separators here

                $replace = array(
                    "$1" . strtolower(get_option('stylesheet')) . "$3",
                    "$1" . 'v' . $version . "$3 //" . date('l, F j, Y g:i:s A'),
                    "$1" . home_url('/') . "offline/$3",
                    "$1" . get_theme_file_uri('/assets/img') . "/offline.svg$3",
                    "$1" . get_theme_file_uri('/assets/img/meta') . "/android-chrome-512x512.png$3",
                    "$1" . $this->manifest_json_location() . "$3",
                    "$1" . home_url('/') . "$3",
                    "$1" . home_url('/') . "?utm_source=pwa$3", //If getting "start_url does not respond" when offline in Lighthouse, make sure you are not disabling the cache in DevTools Network tab!
                );

                $sw_js = preg_replace($find, $replace, $sw_js);
                $update_sw_js = $wp_filesystem->put_contents($this->sw_location(false), $sw_js);
                do_action('nebula_wrote_sw_js');
                do_action('qm/info', 'Updated sw.js File');
            }

            $this->timer('Update SW', 'end');
            return false;
        }

Override

To override this PHP function, use this hook in your child theme or plugin ("my_custom" can be changed):

PHP

add_filter('pre_nebula_update_swjs', 'my_custom_update_sw_js'); 
function my_custom_update_sw_js(){ 
    //Write your own code here

    return true; //Return true to prevent the original function from running afterwords
}

You can completely disable this PHP function with a single line actions:

PHP

 add_filter('pre_nebula_update_swjs', '__return_false');

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