From 6144af7e9b23a9baac4379ab5e85f0e2c89abcbe Mon Sep 17 00:00:00 2001
From: LD-RW <basheermazari4@gmail.com>
Date: Fri, 10 Apr 2026 22:18:51 +0300
Subject: [PATCH] ci: fix AppVeyor MSYS2 keyring PGP signature failure

The AppVeyor Windows CI has been failing on all builds because the
MSYS2 keyring on the AppVeyor image does not contain signing key
5F944B027F7FE2091985AA2EFA11531AA0AA7F57, causing pacman -Syuu to
abort with 'invalid or corrupted database (PGP signature)'.

Fix by refreshing the keyring before syncing packages:
  pacman-key --init
  pacman-key --populate msys2
  pacman -Sy msys2-keyring

This unblocks all AppVeyor build matrix entries (MINGW32/MINGW64,
with and without MSVC).
---
 .appveyor.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.appveyor.yml b/.appveyor.yml
index c74e89db..3d3784cb 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -39,6 +39,9 @@ install:
   - set PATH=c:\msys64\%MSYSTEM%\bin;c:\msys64\usr\bin;%PATH%
   - if defined MSVC call "c:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %MSVC%
   - if defined MSVC pacman --noconfirm -Rsc mingw-w64-%CPU%-gcc gcc
+  - pacman-key --init
+  - pacman-key --populate msys2
+  - pacman -Sy --noconfirm msys2-keyring
   - pacman --noconfirm -Syuu
   - pacman --noconfirm -S autoconf