feat: use portable config

Author: abgox

install.ps1

@@ -694,8 +694,13 @@ $SCOOP_APP_DIR = "$SCOOP_DIR\apps\scoop\current"
 # Scoop main bucket directory
 $SCOOP_MAIN_BUCKET_DIR = "$SCOOP_DIR\buckets\main"
 # Scoop config file location
-$SCOOP_CONFIG_HOME = $env:XDG_CONFIG_HOME, "$env:USERPROFILE\.config" | Select-Object -First 1
-$SCOOP_CONFIG_FILE = "$SCOOP_CONFIG_HOME\scoop\config.json"
+if ($SCOOP_DIR) {
+    $SCOOP_CONFIG_HOME = $SCOOP_DIR
+    $SCOOP_CONFIG_FILE = "$SCOOP_DIR\config.json"
+} else {
+    $SCOOP_CONFIG_HOME = $env:XDG_CONFIG_HOME, "$env:USERPROFILE\.config" | Select-Object -First 1
+    $SCOOP_CONFIG_FILE = "$SCOOP_CONFIG_HOME\scoop\config.json"
+}
 
 # TODO: Use a specific version of Scoop and the main bucket
 $SCOOP_PACKAGE_REPO = 'https://github.com/ScoopInstaller/Scoop/archive/master.zip'