generate the secret property automatically

Shared/Secrets.swift.gyb

@@ -1,27 +1,39 @@
-// Secrets.swift.gyb
+// Generated by Secrets.swift.gyb
 %{
 import os
 
+secrets = ['FEED_WRANGLER_KEY']
+
 def chunks(seq, size):
-    return (seq[i:(i + size)] for i in range(0, len(seq), size))
+  return (seq[i:(i + size)] for i in range(0, len(seq), size))
 
 def encode(string, salt):
-    bytes = string.encode("UTF-8")
-    return [ord(bytes[i]) ^ salt[i % len(salt)] for i in range(0, len(bytes))]
+  bytes = string.encode("UTF-8")
+  return [ord(bytes[i]) ^ salt[i % len(salt)] for i in range(0, len(bytes))]
+
+def snake_to_camel(snake_str):
+  components = snake_str.split('_')
+  return components[0].lower() + ''.join(x.title() for x in components[1:])
 
 salt = [ord(byte) for byte in os.urandom(64)]
 }%
 enum Secrets {
 
-  static var FeedWranglerClientKey: String {
-      let encoded: [UInt8] = [
-      % for chunk in chunks(encode(os.environ.get('FEED_WRANGLER_KEY'), salt), 8):
+  % for secret in secrets:
+  static var ${snake_to_camel(secret)}: String {
+     let encoded: [UInt8] = [
+      % for chunk in chunks(encode(os.environ.get(secret), salt), 8):
           ${"".join(["0x%02x, " % byte for byte in chunk])}
       % end
       ]
 
       return decode(encoded, salt: salt)
   }
+  % end
+  
+}
+
+private extension Secrets {
 
   private static let salt: [UInt8] = [
   % for chunk in chunks(salt, 8):
@@ -34,4 +46,5 @@ enum Secrets {
         element ^ salt[offset % salt.count]
     }, as: UTF8.self)
   }
+
 }