From 110ae9e4eb6acb19950757adae6f297c80c8ec79 Mon Sep 17 00:00:00 2001
From: Pepe44DEV <pascal.priessnitz@pepe44.dev>
Date: Thu, 28 May 2026 18:27:22 +0200
Subject: [PATCH] fix is_package_installed to check provides (virtual packages)

aylurs-gtk-shell-git provides aylurs-gtk-shell, but pacman -Qi
only matches exact package names. This caused the installer to
think ags was missing and try to install aylurs-gtk-shell from
AUR, which conflicts with the already-installed -git variant.

Now uses expac (fast) or pacman loop (fallback) to check if any
installed package provides the requested virtual package name.
---
 lib/utils.sh | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/lib/utils.sh b/lib/utils.sh
index 72fd9fe..335c4b6 100755
--- a/lib/utils.sh
+++ b/lib/utils.sh
@@ -91,8 +91,19 @@ is_package_installed() {
   local pkg="$1"
 
   if command -v pacman >/dev/null 2>&1; then
-    pacman -Qi "$pkg" >/dev/null 2>&1
-    return $?
+    pacman -Qi "$pkg" >/dev/null 2>&1 && return 0
+    if command -v expac >/dev/null 2>&1; then
+      expac -Q '%n %P' 2>/dev/null | awk -v pkg="$pkg" '
+        { for (i=2; i<=NF; i++) if ($i == pkg) {found=1; exit} }
+        END {exit !found}
+      ' && return 0
+    else
+      while IFS= read -r installed; do
+        [[ -z "$installed" ]] && continue
+        pacman -Qi "$installed" 2>/dev/null | grep -qP "Provides\s*:\s*.*\b${pkg}\b" && return 0
+      done < <(pacman -Qq 2>/dev/null)
+    fi
+    return 1
   fi
 
   return 1