From 7846c1b33585a88333d2b0ac2270d0d304a2eeac Mon Sep 17 00:00:00 2001
From: Spacedio <spacedio@thernusen.net>
Date: Wed, 3 Jun 2026 22:39:11 -0400
Subject: Continuing work on the Polybar dGPU module. Switched from Pulseaudio
 to Pipewire.

---
 system/usr/polybar-gpu-trigger | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100755 system/usr/polybar-gpu-trigger

(limited to 'system/usr/polybar-gpu-trigger')

diff --git a/system/usr/polybar-gpu-trigger b/system/usr/polybar-gpu-trigger
new file mode 100755
index 0000000..55b52fc
--- /dev/null
+++ b/system/usr/polybar-gpu-trigger
@@ -0,0 +1,29 @@
+#!/bin/bash
+# /usr/local/bin/polybar-gpu-trigger
+
+# 1. Critical sleep to prevent the udev timing race condition
+sleep 0.5
+
+# Find the Process ID (PID) of Polybar
+POLYBAR_PID=$(pgrep -x polybar)
+if [ -z "$POLYBAR_PID" ]; then
+    exit 0
+fi
+
+# Loop through found PIDs to locate the correct user context
+for pid in $POLYBAR_PID; do
+    if [ -f "/proc/$pid/environ" ]; then
+        USER_UID=$(stat -c "%u" "/proc/$pid")
+        USER_NAME=$(id -nu "$USER_UID")
+
+        # Safely parse the environment file for XDG_RUNTIME_DIR
+        XDG_DIR=$(tr '\0' '\n' < "/proc/$pid/environ" | grep '^XDG_RUNTIME_DIR=' | cut -d= -f2-)
+
+        if [ -n "$XDG_DIR" ]; then
+            # Drop root privileges and forcefully send the text directly into Polybar
+            sudo -u "$USER_NAME" XDG_RUNTIME_DIR="$XDG_DIR" \
+                polybar-msg action "#gpu-status.send.0" >/dev/null 2>&1
+            break
+        fi
+    fi
+done
-- 
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