Read and parse schema.json once

Author: o-l-a-v

lib/json.ps1

@@ -222,14 +222,16 @@ function Sort-ScoopManifestRootProperties {
     )
 
     # Get wanted order from Scoop manifest schema
-    Write-Debug -Message ('{0}\..\schema.json' -f $PSScriptRoot)
-    $WantedOrder = [string[]](
-        (
-            parse_json -path (
-                '{0}\..\schema.json' -f $PSScriptRoot
-            )
-        ).'properties'.'PSObject'.'Properties'.'Name'
-    )
+    if ([string]::IsNullOrWhiteSpace($Script:WantedOrder)) {
+        Write-Debug -Message ('{0}\..\schema.json' -f $PSScriptRoot)
+        $Script:WantedOrder = [string[]](
+            (
+                parse_json -path (
+                    '{0}\..\schema.json' -f $PSScriptRoot
+                )
+            ).'properties'.'PSObject'.'Properties'.'Name'
+        )
+    }
 
     # Create empty new object where properties will be added to
     $SortedObject = [PSCustomObject]::new()