From cafef48da761e6e7fc4e008cdcdc41b988350ac1 Mon Sep 17 00:00:00 2001
From: Will Leinweber <will@bitfission.com>
Date: Thu, 31 Oct 2024 10:30:36 +0100
Subject: [PATCH] windows: avoid breaking LibC.getuid call

fixes #291
---
 CHANGELOG          | 1 +
 src/pq/conninfo.cr | 8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG b/CHANGELOG
index b9c8b80a..f4867ba9 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -5,6 +5,7 @@ v? upcoming
 * Support encoding PG::Interval params (thanks @Blacksmoke16)
 * Encode Crystal enum args as integers (thanks @jgaskins)
 * Handle Array(Bytes) encoding for query params containing non-Unicode text (thanks @jgaskins)
+* Avoid calling LibC.getuid on windows
 
 
 v0.28.0    2023-12-21
diff --git a/src/pq/conninfo.cr b/src/pq/conninfo.cr
index 728363dc..6e1b9223 100644
--- a/src/pq/conninfo.cr
+++ b/src/pq/conninfo.cr
@@ -171,7 +171,13 @@ module PQ
     end
 
     private def current_user_name
-      System::User.find_by(id: LibC.getuid.to_s).username
+      {% if flag?(:windows) %}
+        # NOTE: actually getting the current username on windows would be better
+        #       https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-getusernamew
+        "postgres"
+      {% else %}
+        System::User.find_by(id: LibC.getuid.to_s).username
+      {% end %}
     end
   end
 end