scripts/ecran

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#! /bin/sh
# Description: Manage video output (size, orientation, ...)
# And reload wm configuration
# Vars {{{
[ -z "${DEBUG}" ] && readonly DEBUG=0
## Colors
readonly PURPLE='\033[1;35m'
readonly RED='\033[0;31m'
readonly RESET='\033[0m'
readonly COLOR_DEBUG="${PURPLE}"
## First and primary output (laptop screen, hdmi-1,…)
## It can be forced here or the script will try to discover it's name
#readonly PRIMARY_OUTPUT_NAME="LVDS-1"
## Second output (hdmi-2, dp-1,…)
## It can be forced here or the script will try to discover it's name
#readonly SECOND_OUTPUT_NAME
# }}}
debug_message() { # {{{
local_message="${1}"
## Print message if DEBUG is enable (=0)
[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6b\e[m\n' "DEBUG ${PROGNAME}: ${local_message}"
return 0
}
# }}}
define_vars() { # {{{
## Primary output {{{
### If the primary output wasn't manually defined,
### try to get it's name
if [ -z "${PRIMARY_OUTPUT_NAME}" ]; then
get_primary_output_name
fi
debug_message "define_vars \
The primary output is: ${PRIMARY_OUTPUT_NAME}."
## }}}
## Second output {{{
### If the second output wasn't manually defined,
### try to get it's name
if [ -z "${SECOND_OUTPUT_NAME}" ]; then
SECOND_OUTPUT_NAME=$(xrandr | grep " connected" | grep -v "${PRIMARY_OUTPUT_NAME}" | awk 'NR==1{ print $1 }')
debug_message "define_vars \
The second output is: ${SECOND_OUTPUT_NAME}."
fi
## }}}
[ -f "${HOME}/.config/xrandr.conf" ] && \
. "${HOME}/.config/xrandr.conf" && \
printf "%b\n" 'Use local config file.'
}
# }}}
get_primary_output_name() { # {{{
## First, check if an output is already defined as primary
local_primary_output_name=$(xrandr | grep " primary" | grep -v " disconnected" | awk 'NR==1{ print $1 }')
## If the var contains something
if [ -n "${local_primary_output_name}" ]; then
debug_message "get_primary_output_name \
An output is defined as primary: ${local_primary_output_name}".
else
## Then check if an output starting with "LVD" (typically a laptop) is connected
local_primary_output_name=$(xrandr | grep "^LVD" | grep " connected" | awk 'NR==1{ print $1 }')
if [ -n "${local_primary_output_name}" ]; then
debug_message "get_primary_output_name \
The primary output seems to be a laptop screen: ${local_primary_output_name}".
else
## Then check if any output is connected and take the first one
local_primary_output_name=$(xrandr | grep " connected" | awk 'NR==1{ print $1 }')
if [ -n "${local_primary_output_name}" ]; then
debug_message "get_primary_output_name \
Take the first connected output as primary: ${local_primary_output_name}".
else
debug_message "get_primary_output_name \
Unable to get primary output name!
Ensure to have a primary, LVDS or any connected output in xrandr."
exit 2
fi
fi
fi
readonly PRIMARY_OUTPUT_NAME="${local_primary_output_name}"
}
# }}}
is_proc_running() { # {{{
local_proc_pattern="${1}"
local_count_proc_pattern="$(pgrep -f -- "${local_proc_pattern}" | wc -l)"
case "${local_count_proc_pattern}" in
0 ) ## No procs related to this pattern are running
return_proc_running="1"
;;
* ) ## At least one proc seems running
return_proc_running="0"
;;
esac
## Simple debug message to valid current variables
debug_message "is_proc_running \
procs running (with the pattern: ${RED}${local_proc_pattern}${COLOR_DEBUG}) on the current host: ${RED}${local_count_proc_pattern}${COLOR_DEBUG}."
return "${return_proc_running}"
}
# }}}
main() { # {{{
## Update herbstluftwm Window Manager configuration if it's running
is_proc_running "herbstluftwm" \
&& herbstclient detect_monitors \
&& herbstclient reload
}
# }}}
# Define all vars
define_vars
# Manage arguments # {{{
# This code can't be in a function due to arguments
case "${1}" in
primary | off )
## TODO: One command to enable primary screen and a loop to disable all other connected output
if [ -n "${PRIMARY_OUTPUT_MODE}" ]; then
xrandr --output "${PRIMARY_OUTPUT_NAME:=/dev/null}" --mode "${PRIMARY_OUTPUT_MODE}"
else
xrandr --output "${PRIMARY_OUTPUT_NAME:=/dev/null}" --auto
fi
if [ -n "${SECOND_OUTPUT_NAME}" ]; then xrandr --output "${SECOND_OUTPUT_NAME:=/dev/null}" --off ; fi
printf "%b\n" 'Enable only primary output'
;;
leftof | left-of | ds | dock | dockstation | work )
#xrandr --output VGA-1 --mode 1024x768 --left-of "${PRIMARY_OUTPUT_NAME:=/dev/null}" --output "${PRIMARY_OUTPUT_NAME:=/dev/null}" --mode 1366x768
if [ -n "${PRIMARY_OUTPUT_MODE}" ]; then
xrandr --output "${SECOND_OUTPUT_NAME:=/dev/null}" --auto --left-of "${PRIMARY_OUTPUT_NAME:=/dev/null}" --output "${PRIMARY_OUTPUT_NAME:=/dev/null}" --mode "${PRIMARY_OUTPUT_MODE}"
else
xrandr --output "${SECOND_OUTPUT_NAME:=/dev/null}" --auto --left-of "${PRIMARY_OUTPUT_NAME:=/dev/null}" --output "${PRIMARY_OUTPUT_NAME:=/dev/null}" --auto
fi
printf "%b\n" 'Xrandr for second output left-of primary screen'
;;
rightof | right-of | home )
if [ -n "${PRIMARY_OUTPUT_MODE}" ]; then
xrandr --output "${SECOND_OUTPUT_NAME:=/dev/null}" --auto --right-of "${PRIMARY_OUTPUT_NAME:=/dev/null}" --output "${PRIMARY_OUTPUT_NAME:=/dev/null}" --mode "${PRIMARY_OUTPUT_MODE}"
else
xrandr --output "${SECOND_OUTPUT_NAME:=/dev/null}" --auto --right-of "${PRIMARY_OUTPUT_NAME:=/dev/null}" --output "${PRIMARY_OUTPUT_NAME:=/dev/null}" --auto
fi
printf "%b\n" 'Xrandr for second output left-of primary screen'
;;
above )
if [ -n "${PRIMARY_OUTPUT_MODE}" ]; then
xrandr --output "${SECOND_OUTPUT_NAME:=/dev/null}" --auto --above "${PRIMARY_OUTPUT_NAME:=/dev/null}" --output "${PRIMARY_OUTPUT_NAME:=/dev/null}" --mode "${PRIMARY_OUTPUT_MODE}"
else
xrandr --output "${SECOND_OUTPUT_NAME:=/dev/null}" --auto --above "${PRIMARY_OUTPUT_NAME:=/dev/null}" --output "${PRIMARY_OUTPUT_NAME:=/dev/null}" --auto
fi
printf "%b\n" 'Xrandr for second output above primary screen'
;;
out | game | second )
xrandr --output "${SECOND_OUTPUT_NAME:=/dev/null}" --auto --output "${PRIMARY_OUTPUT_NAME:=/dev/null}" --off
printf "%b\n" 'Xrandr for second output only'
;;
primary_off | first_off | main_off | laptop_off )
xrandr --output "${PRIMARY_OUTPUT_NAME:=/dev/null}" --off
printf "%b\n" 'Xrandr to disable primary output'
;;
* )
printf "%b\n" 'Bad argument, please use [primary|left-of|right-of|above|second|primary_off|...]'
exit 1
;;
esac
main
# }}}
exit 0