From 5a0782047236bcb2aec55e53c3247db4307d9600 Mon Sep 17 00:00:00 2001
From: Lars Kanis <kanis@comcard.de>
Date: Fri, 2 Dec 2022 08:05:42 +0100
Subject: [PATCH] Fix compat with ruby < 2.5

---
 lib/pg_ldap_sync.rb        | 1 +
 lib/pg_ldap_sync/compat.rb | 9 +++++++++
 2 files changed, 10 insertions(+)
 create mode 100644 lib/pg_ldap_sync/compat.rb

diff --git a/lib/pg_ldap_sync.rb b/lib/pg_ldap_sync.rb
index 21a6185..8d0a5e0 100644
--- a/lib/pg_ldap_sync.rb
+++ b/lib/pg_ldap_sync.rb
@@ -1,4 +1,5 @@
 require "pg_ldap_sync/application"
+require "pg_ldap_sync/compat"
 require "pg_ldap_sync/version"
 
 module PgLdapSync
diff --git a/lib/pg_ldap_sync/compat.rb b/lib/pg_ldap_sync/compat.rb
new file mode 100644
index 0000000..24f7845
--- /dev/null
+++ b/lib/pg_ldap_sync/compat.rb
@@ -0,0 +1,9 @@
+#!/usr/bin/env ruby
+
+class Hash
+  def transform_keys
+    map do |k, v|
+      [yield(k), v]
+    end.to_h
+  end unless method_defined? :transform_keys
+end