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#!/usr/bin/env bash
# adjbacklight – Convient method for adjusting the backlight on your portable computer
#
# Copyright © 2012, 2013 Mattias Andrée (maandree@member.fsf.org)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
all=0
devices=()
if (( $# > 0 )); then
for arg in "$@"; do
case "$arg" in
("-a" | "--all")
all=1
;;
("-c" | "--copyright" | "--copying")
cat <<.
adjbacklight – Convient method for adjusting the backlight on your portable computer
Copyright © 2012, 2013 Mattias Andrée (maandree@member.fsf.org)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
.
exit 0
;;
("-w" | "--warranty")
cat <<.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
.
exit 0
;;
(*)
if [ ! "${arg::1}" = "-" ]; then
devices+=( "$arg" )
fi
;;
esac
done
if [ $all = 0 ] && [ ${#devices[@]} = 0 ]; then
cat <<.
adjbacklight – Convient method for adjusting the backlight on your portable computer
USAGE: adjbacklight [ -c | -w | -a | DEVICE...]
Run with options to adjust the backlight on your monitors.
OPTIONS:
-c
--copyright
--copying Display copyright information
-w
--warranty Display warranty disclaimer
-a
--all Run for all devices, including ACPI devices
KEYBOARD:
←
↓ Darken the screen
→
↑ Brighten the screen
q
enter
C-d Continue to next controller, or if at last, quit
Copyright © 2012, 2013 Mattias Andrée (maandree@member.fsf.org)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
.
exit 0
fi
fi
cat <<.
If the program is abnormally aborted there may be effects
on the terminal, the following commands should reset it:
stty icanon echo
echo -en '\e[?25h'
.
stty -icanon -echo
if [ $? = 0 ]; then
echo -en '\e[?25l'
if [ ! ${#devices[@]} = 0 ]; then
for dir in "${devices[@]}"; do
if [ "${dir::21}" = "/sys/class/backlight/" ]; then
dir="${dir:21}"
fi
sudo java -cp ${BASH_SOURCE%/*} Adjbacklight `stty size` "$dir"
done
elif [ $all = 0 ]; then
for dir in $(exec ls -1 --color=no "/sys/class/backlight/" | grep -v '^acpi_video'); do
sudo java -cp ${BASH_SOURCE%/*} Adjbacklight `stty size` "$dir"
done
else
for dir in $(exec ls -1 --color=no "/sys/class/backlight/"); do
sudo java -cp ${BASH_SOURCE%/*} Adjbacklight `stty size` "$dir"
done
fi
echo -en '\e[?25h'
stty icanon echo
else
echo -e '\e[1;31m::\e[39m Epic failure\e[21m'
fi
|
