implement autorandr script
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Stefan Tomanek
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#!/bin/sh
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#
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# Automatically select a display configuration based on connected devives
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#
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# Stefan Tomanek <stefan.tomanek@wertarbyte.de>
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#
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# How to use:
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#
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# Save your current display configuration and setup with
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# autorandr --save mobile
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#
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# Connect an additional display, configure your setup and save it
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# autorand --save docked
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#
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# Now autorandr can detect which hardware setup is active:
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# # autorandr
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# mobile
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# docked (detected)
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#
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# To automatically reload your setup, just append --change to the command line
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#
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# To manually load a profile, you can use the --load <profile> option.
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#
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# To prevent a profile from being loaded, place a script call "block" in its
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# directory. The script is evaluated before the screen setup is inspected, and
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# in case of it returning a value of 0 the profile is skipped. This can be used
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# to query the status of a docking station you are about to leave.
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#
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# If no suitable profile can be identified, the current configuration is kept.
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# To change this behaviour and switch to a fallback configuration, specify
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# --default <profile>
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#
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# Another script called "postswitch "can be placed in the directory
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# ~/.auto-disper as well as in all profile directories: The scripts are
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# executed after a mode switch has taken place and can notify window managers
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# or other applications about it.
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XRANDR=/usr/bin/xrandr
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PROFILES=~/.autorandr/
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CHANGE_PROFILE=0
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DEFAULT_PROFILE=""
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SAVE_PROFILE=""
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setup_fp() {
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$XRANDR -q --verbose | awk '
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/^[^ ]+ (dis)?connected / { DEV=$1; ID[DEV] = ""; }
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$1 ~ /^[a-f0-9]+$/ { ID[DEV] = ID[DEV] $1 }
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END { for (X in ID) { print X " " ID[X]; } }'
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}
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current_cfg() {
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$XRANDR -q | awk '
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/^[^ ]+ disconnected / {
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print "output "$1;
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print "off";
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}
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/^[^ ]+ connected / {
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split($3, A, "+");
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print "output "$1;
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print "mode "A[1];
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print "pos "A[2]"x"A[3];
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}'
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}
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blocked() {
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local PROFILE="$1"
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[ ! -x "$PROFILES/$PROFILE/block" ] && return 1
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"$PROFILES/$PROFILE/block" "$PROFILE"
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}
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load() {
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local PROFILE="$1"
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if [ "$CHANGE_PROFILE" -eq 1 ]; then
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echo " -> loading profile $PROFILE"
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sed 's!^!--!' "$PROFILES/$PROFILE/config" | xargs xrandr
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[ -x "$PROFILES/$PROFILE/postswitch" ] && \
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"$PROFILES/$PROFILE/postswitch" "$PROFILE"
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[ -x "$PROFILES/postswitch" ] && \
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"$PROFILES/postswitch" "$PROFILE"
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fi
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}
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# process parameters
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OPTS=$(getopt -n autorandr -o s:l:d:c --long change,default:,save:,load: -- "$@")
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if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
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eval set -- "$OPTS"
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while true; do
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case "$1" in
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-c|--change) CHANGE_PROFILE=1; shift ;;
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-d|--default) DEFAULT_PROFILE="$2"; shift 2 ;;
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-s|--save) SAVE_PROFILE="$2"; shift 2 ;;
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-l|--load) LOAD_PROFILE="$2"; shift 2 ;;
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--) shift; break ;;
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*) echo "Error: $1"; exit 1;;
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esac
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done
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CURRENT_SETUP="$(setup_fp)"
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if [ -n "$SAVE_PROFILE" ]; then
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echo "Saving current configuration as profile '${SAVE_PROFILE}'"
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mkdir -p "$PROFILES/$SAVE_PROFILE"
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echo "$CURRENT_SETUP" > "$PROFILES/$SAVE_PROFILE/setup"
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current_cfg > "$PROFILES/$SAVE_PROFILE/config"
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exit 0
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fi
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if [ -n "$LOAD_PROFILE" ]; then
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CHANGE_PROFILE=1 load "$LOAD_PROFILE"
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exit $?
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fi
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for SETUP_FILE in $PROFILES/*/setup; do
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if ! [ -e $SETUP_FILE ]; then
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break
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fi
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PROFILE="$(basename $(dirname "$SETUP_FILE"))"
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echo -n "$PROFILE"
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if blocked "$PROFILE"; then
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echo " (blocked)"
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continue
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fi
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FILE_SETUP="$(cat "$PROFILES/$PROFILE/setup")"
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if [ "$CURRENT_SETUP" = "$FILE_SETUP" ]; then
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echo " (detected)"
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load "$PROFILE"
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# found the profile, exit with success
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exit 0
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else
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echo ""
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fi
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done
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# we did not find the profile, load default
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if [ -n "$DEFAULT_PROFILE" ]; then
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echo "No suitable profile detected, falling back to $DEFAULT_PROFILE"
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load "$DEFAULT_PROFILE"
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fi
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exit 1
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18
conf.awk
18
conf.awk
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@ -1,18 +0,0 @@
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#!/usr/bin/awk
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/^[^ ]+ disconnected / {
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OUTPUT[$1] = "--off";
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}
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/^[^ ]+ connected / {
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split($3, A, "+");
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OUTPUT[$1] = "--mode "A[1]" --pos "A[2]"x"A[3];
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}
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END {
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printf "xrandr ";
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for (O in OUTPUT) {
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printf "--output " O " " OUTPUT[O] " ";
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}
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printf "\n";
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}
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