feat: enable device configuration for backlight (#1)

PKGBUILD

@@ -1,7 +1,7 @@
 # Maintainer: harttle <[email protected]>
 # Inspired by lighter, many thanks to Janhouse's perl script https://github.com/Janhouse/lighter
 pkgname=macbook-lighter
-pkgver=v0.0.2.5.g112c1f0
+pkgver=v0.0.2.9.ge9d3b89
 pkgrel=1
 pkgdesc="Macbook screen/keyboard backlight CLI and auto-adjust on ambient light"
 arch=(any)
@@ -11,7 +11,7 @@ depends=('bc')
 makedepends=('git')
 provides=()
 conflicts=()
-source=('git+https://github.com/harttle/macbook-lighter.git')
+source=('git+https://github.com/afrischk/macbook-lighter.git')
 md5sums=('SKIP')
 
 pkgver() {

macbook-lighter.conf

@@ -33,3 +33,6 @@ ML_AUTO_SCREEN=true
 # debug info to stdout
 # Available values: false, true
 ML_DEBUG=false
+
+# device to use
+DEVICE=intel_backlight

src/macbook-lighter-ambient.sh

@@ -1,28 +1,31 @@
 #!/usr/bin/env bash
 
-intel_dir=/sys/class/backlight/intel_backlight
-kbd_dir=/sys/class/leds/smc::kbd_backlight
+# load config
+[ -f /etc/macbook-lighter.conf ] && source /etc/macbook-lighter.conf
 
+device=${DEVICE:-intel_backlight}
+device_dir=/sys/class/backlight/$device
+kbd_dir=/sys/class/leds/smc::kbd_backlight
 power_file=/sys/class/power_supply/ADP1/online
-screen_file=$intel_dir/brightness
+screen_file=$device_dir/brightness
 kbd_file=$kbd_dir/brightness
 lid_file=/proc/acpi/button/lid/LID0/state
-light_file="/sys/devices/platform/applesmc.768/light"
+light_file=/sys/devices/platform/applesmc.768/light
 
 #####################################################
 # wait drivers loaded
 
-$ML_DEBUG && echo checking $intel_dir and $kbd_dir...
-while [ ! -d $intel_dir -o ! -d $kbd_dir ]; do
+$ML_DEBUG && echo checking $device_dir and $kbd_dir...
+while [ ! -d $device_dir -o ! -d $kbd_dir ]; do
     sleep 1
 done
-screen_max=$(cat $intel_dir/max_brightness)
+screen_max=$(cat $device_dir/max_brightness)
 
 #####################################################
+
 # Settings
-[ -f /etc/macbook-lighter.conf ] && source /etc/macbook-lighter.conf
 ML_DURATION=${ML_DURATION:-1.5}
-ML_FRAME=${ML_DURATION:-0.017}
+ML_FRAME=${ML_FRAME:-0.017}
 ML_INTERVAL=${ML_INTERVAL:-5}
 ML_BRIGHT_ENOUGH=${ML_BRIGHT_ENOUGH:-40}
 ML_SCREEN_THRESHOLD=${ML_SCREEN_THRESHOLD:-10}
@@ -34,6 +37,7 @@ ML_AUTO_SCREEN=${ML_AUTO_SCREEN:-true}
 ML_DEBUG=${ML_DEBUG:-false}
 
 #####################################################
+
 # Private States
 screen_ajusted_at=0
 kbd_adjusted_at=0

src/macbook-lighter-kbd.sh

@@ -1,3 +1,5 @@
+#!/usr/bin/env bash
+
 set -e
 
 device='/sys/class/leds/smc::kbd_backlight/brightness'

src/macbook-lighter-screen.sh

@@ -1,8 +1,14 @@
+#!/usr/bin/env bash
+
 set -e
 
-device='/sys/class/backlight/intel_backlight/brightness'
-current=`cat $device`
-max=`cat /sys/class/backlight/intel_backlight/max_brightness`
+# load config
+[ -f /etc/macbook-lighter.conf ] && source /etc/macbook-lighter.conf
+
+device=${DEVICE:-intel_backlight}
+brightness=/sys/class/backlight/$device/brightness
+curr_brightness=`cat $brightness`
+max_brightness=`cat /sys/class/backlight/$device/max_brightness`
 
 screen_help () {
     echo 'Usage: macbook-lighter-screen <OPTION> [NUM]'
@@ -12,34 +18,34 @@ screen_help () {
     echo '  -i [NUM], --inc [NUM]   increase backlight by NUM'
     echo '  -d [NUM], --dec [NUM]   decrease backlight by NUM'
     echo '  -m, --min               close backlight'
-    echo '  -M, --max               set backlight to max'
+    echo '  -M, --max_brightness    set backlight to max_brightness'
     echo '  -h, --help              print this message'
     echo ''
     echo 'Examples:'
     echo '  # Increase screen backlight by 50'
     echo '  macbook-lighter-screen --inc 50'
     echo ''
-    echo '  # Set screen backlight to max'
-    echo '  macbook-lighter-screen --max'
+    echo '  # Set screen backlight to max_brightness'
+    echo '  macbook-lighter-screen --max_brightness'
 }
 
 screen_set() {
-    echo $1 > $device
+    echo $1 > $brightness
     echo set to $1
 }
 
 case $1 in
     -i|--inc)
-        screen_set $((current+$2 > max ? max : current + $2))
+        screen_set $((curr_brightness + $2 > max_brightness ? max_brightness : curr_brightness + $2))
     ;;
     -d|--dec)
-        screen_set $((current < $2 ? 0 : current - $2))
+        screen_set $((curr_brightness < $2 ? 0 : curr_brightness - $2))
     ;;
     -m|--min)
         screen_set 0
     ;;
-    -M|--max)
-        screen_set $max
+    -M|--max_brightness)
+        screen_set $max_brightness
     ;;
     -h|--help)
         screen_help