initial commit

2026-09-14 15:31:20 -05:00
commit 438546d84f
44 changed files with 3292 additions and 0 deletions
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+#!/usr/bin/env bash
+# ---------------------------------------------------------------------------
+#  Launch one polybar instance per connected monitor.
+#  Hardware-specific values are detected here and passed to polybar as
+#  environment variables, so config.ini stays machine-independent.
+# ---------------------------------------------------------------------------
+set -uo pipefail
+
+CONFIG="$HOME/.config/polybar/config.ini"
+LOG="${XDG_CACHE_HOME:-$HOME/.cache}/polybar.log"
+
+mkdir -p "$(dirname "$LOG")"
+
+# --- stop any running instances and wait for them to die -------------------
+pkill -x polybar >/dev/null 2>&1 || true
+for _ in {1..20}; do
+  pgrep -x polybar >/dev/null || break
+  sleep 0.1
+done
+# Anything still alive gets the hammer.
+pgrep -x polybar >/dev/null && pkill -9 -x polybar
+
+# --- hardware detection ----------------------------------------------------
+# Battery + AC adapter
+BATTERY="$(ls -1 /sys/class/power_supply 2>/dev/null | grep -m1 '^BAT'  || true)"
+ADAPTER="$(ls -1 /sys/class/power_supply 2>/dev/null | grep -m1 -E '^(AC|ADP|ACAD)' || true)"
+export BATTERY="${BATTERY:-BAT0}"
+export ADAPTER="${ADAPTER:-AC}"
+
+# Backlight device (intel_backlight, amdgpu_bl0, nvidia_0, …)
+BACKLIGHT="$(ls -1 /sys/class/backlight 2>/dev/null | head -n1 || true)"
+export BACKLIGHT="${BACKLIGHT:-intel_backlight}"
+
+# Network interfaces: wireless ones have a /sys/class/net/*/wireless dir
+WLAN_IFACE=""
+ETH_IFACE=""
+for iface in /sys/class/net/*; do
+  name="$(basename "$iface")"
+  [[ "$name" == "lo" ]] && continue
+  if [[ -d "$iface/wireless" ]]; then
+    [[ -z "$WLAN_IFACE" ]] && WLAN_IFACE="$name"
+  else
+    [[ -z "$ETH_IFACE" ]] && ETH_IFACE="$name"
+  fi
+done
+export WLAN_IFACE ETH_IFACE
+
+# --- module pruning --------------------------------------------------------
+# Desktops have no battery/backlight; leaving those modules enabled makes
+# polybar spam the log, so build the right-hand module list dynamically.
+MODULES_RIGHT="filesystem memory cpu temperature"
+[[ -d "/sys/class/backlight/$BACKLIGHT" ]] && MODULES_RIGHT+=" backlight"
+MODULES_RIGHT+=" pulseaudio"
+[[ -n "$WLAN_IFACE" ]] && MODULES_RIGHT+=" wlan"
+[[ -n "$ETH_IFACE"  ]] && MODULES_RIGHT+=" eth"
+[[ -d "/sys/class/power_supply/$BATTERY" ]] && MODULES_RIGHT+=" battery"
+MODULES_RIGHT+=" systray"
+export MODULES_RIGHT
+
+# --- launch ----------------------------------------------------------------
+{
+  echo
+  echo "=== polybar launch $(date -Is) ==="
+  echo "battery=$BATTERY adapter=$ADAPTER backlight=$BACKLIGHT wlan=${WLAN_IFACE:-none} eth=${ETH_IFACE:-none}"
+  echo "modules-right=$MODULES_RIGHT"
+} >>"$LOG"
+
+if command -v polybar >/dev/null && polybar --list-monitors >/dev/null 2>&1; then
+  # The tray can only live on one bar; give it to the primary monitor.
+  primary="$(polybar --list-monitors | grep -m1 '(primary)' | cut -d: -f1)"
+  while IFS= read -r line; do
+    m="${line%%:*}"
+    [[ -z "$m" ]] && continue
+    if [[ -n "$primary" && "$m" != "$primary" ]]; then
+      MONITOR="$m" MODULES_RIGHT="${MODULES_RIGHT/ systray/}" \
+        polybar --reload main --config="$CONFIG" >>"$LOG" 2>&1 &
+    else
+      MONITOR="$m" polybar --reload main --config="$CONFIG" >>"$LOG" 2>&1 &
+    fi
+  done < <(polybar --list-monitors)
+else
+  polybar --reload main --config="$CONFIG" >>"$LOG" 2>&1 &
+fi
+
+echo "polybar launched" >>"$LOG"