Laravel 7.x - artisan route:cache always generates a different file ?

[MircoBabin]

Hello,

Part of my personal workflow is that before git pushing my changes, I always automatically regenerate the route cache file with

php artisan route:cache

But the generated cache file bootstrap/cache/routes-v7.php is always generated differently, even when there is no change in the routes. I do not want this, if the routes don't change, the file should be exactly the same.

P.S. this way I never can forget to update the cached routes. If I have to manually cache the routes after a change that is very error prone.

Reproduction

• Have at least one unnamed route.
• run php artisan route:cache
• rename /bootstrap/cache/routes-v7.php to /bootstrap/cache/routes-v7.php.first
• run php artisan route:cache
• compare /bootstrap/cache/routes-v7.php with /bootstrap/cache/routes-v7.php.first. They should be exactly the same, because there was no route change.

Investigation

The diff of bootstrap/cache/routes-v7.php shows lots of differences for _route

@@ -41,7 +41,7 @@ app('router')->setCompiledRoutes(
         array (
           0 => 
           array (
-            '_route' => 'generated::LG0ihxi3RRO69wkg',
+            '_route' => 'generated::IF3okhTe4eJyP3D5',
           ),
           1 => NULL,
           2 => 
@@ -60,7 +60,7 @@ app('router')->setCompiledRoutes(
         array (
           0 => 
           array (
-            '_route' => 'generated::wSc6rYtbaOkJpDwZ',
+            '_route' => 'generated::1gGN9MD1bHpKvOo0',
           ),
           1 => NULL,
           2 => 

So I found the Illuminate\Routing\AbstractRouteCollection class containing

    /**
     * Get a randomly generated route name.
     *
     * @return string
     */
    protected function generateRouteName()
    {
        return 'generated::'.Str::random();
    }

But I have no clue of how to change the generateRouteName() function to something deterministic like:

    protected function generateRouteName($url)
    {
        return 'generated::'.sha1($url);
    }

Question

Does anyone have an idea to how to make the route:cache deterministic, without naming all routes ?

Kind regards,
Mirco Babin

[MircoBabin]

Mathias E. sent me an email: You could just name all your routes, it's not really a good practice to have unnamed routes anyway

Thanks for this suggestion. I just named my unnamed routes "unnamed.1" to "unnamed.259". Yep there are 259 unnamed routes, because this project originates from Laravel 4.2 and was shifted to Laravel 7.

After naming everything (don't forget api.php and other files in the routes folder), the php artisan route:cache is finally determenistic.

See also #36448