FEATURE: allow to skip the post-install prunner binary download

Author: christoph-daehne

Classes/Composer/InstallerScripts.php

@@ -45,6 +45,14 @@ class InstallerScripts
 
     const DEFAULT_VERSION_TO_INSTALL = '1.0.1';
 
+    /**
+     * Downloads the prunner binaries from https://github.com/Flowpack/prunner to ./prunner.
+     *
+     * You can pin the prunner version in the composer.json#extra.prunner-version field.
+     * You can also set it to 'skip-download' to skip the download.
+     *
+     * @return void
+     */
     public static function postUpdateAndInstall()
     {
         $platform = php_uname('s'); // stuff like Darwin etc
@@ -58,6 +66,10 @@ public static function postUpdateAndInstall()
             $version = $extra['prunner-version'];
             $versionMessage = ' (OVERRIDDEN in composer.json)';
         }
+        if ($version === 'skip-download') {
+            echo '> Not downloading prunner (due to "skip-download" instruction in composer.json)';
+            return;
+        }
 
         $baseDirectory = 'prunner';
         $platformSpecificTargetDirectory = $baseDirectory . '/' . $platform . '_' . $architecture;

README.md

@@ -46,6 +46,20 @@ will be downloaded. However, it is possible to override this via `extra.prunner-
 }
 ```
 
+## Skip the Prunner binary download
+
+In case you want to install Prunner manually,
+you can skip the download of the Prunner entirely
+by setting `extra.prunner-version` in the root `composer.json` to `"skip-download"`.
+
+```json
+{
+  "extra": {
+    "prunner-version": "skip-download"
+  }
+}
+```
+
 ## Building the UI package
 
 In [prunner-ui](https://github.com/Flowpack/prunner-ui), run `yarn build`