iankelling.org Git - distro-setup/blob - myx

   1 #!/bin/bash
   2 # I, Ian Kelling, follow the GNU license recommendations at
   3 # https://www.gnu.org/licenses/license-recommendations.en.html. They
   4 # recommend that small programs, < 300 lines, be licensed under the
   5 # Apache License 2.0. This file contains or is part of one or more small
   6 # programs. If a small program grows beyond 300 lines, I plan to change
   7 # to a recommended GPL license.
   8
   9 # Copyright 2024 Ian Kelling
  10
  11 # Licensed under the Apache License, Version 2.0 (the "License");
  12 # you may not use this file except in compliance with the License.
  13 # You may obtain a copy of the License at
  14
  15 #     http://www.apache.org/licenses/LICENSE-2.0
  16
  17 # Unless required by applicable law or agreed to in writing, software
  18 # distributed under the License is distributed on an "AS IS" BASIS,
  19 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  20 # See the License for the specific language governing permissions and
  21 # limitations under the License.
  22
  23 set -e; . /usr/local/lib/bash-bear; set +e
  24
  25 script_name="${0##*/}"
  26 usage() {
  27   cat <<EOF
  28 Usage: $script_name [OPTIONS]
  29
  30 Turns on/off secondary monitor.
  31
  32 Sets resolution.
  33
  34 Alters i3 config.
  35
  36 -n  Dry run
  37
  38 -r  Restart secondary monitor
  39
  40 -s  No stream setup. Normally, split monitor into 2 virtual screens and
  41       set max resolution 2560x1440
  42
  43
  44 -h|--help             Print help and exit.
  45
  46 Note: Uses GNU getopt options parsing style
  47 EOF
  48   exit $1
  49 }
  50 edid() {
  51   card=$1
  52   sha256sum </sys/class/drm/$card/edid | grep -oE '^.{10}'
  53 }
  54
  55 i3() {
  56   if [[ $I3SOCK ]]; then
  57     i3-msg "$@"
  58   fi
  59 }
  60
  61 move-ws() {
  62   local target_out output tmps
  63   target_out=$1
  64   shift
  65
  66   if [[ ! ${ws_out[*]} ]]; then
  67     declare -a ws_out
  68     tmps=$(i3 -t get_workspaces)
  69     if [[ ! $tmps ]]; then
  70       return 0
  71     fi
  72     tmps=$(jq -r '.[] | .num, .output' <<<"$tmps")
  73     while read -r ws; do
  74       read -r output || break
  75       ws_out["$ws"]=$output
  76     done <<<"$tmps"
  77   fi
  78
  79   for ws; do
  80     if [[ ${ws_out[$ws]} && ${ws_out[$ws]} != "$target_out" ]]; then
  81       # if the workspace is already there, this will fail.
  82       # if the workspace doesn't exist yet, it fails with:
  83       # ERROR: No output matched
  84       m i3 '[workspace="'$ws'"]' move workspace to output $target_out
  85     fi
  86   done
  87 }
  88
  89 date "+%A, %B %d, %r, %S seconds"
  90
  91 ##### begin command line parsing ########
  92
  93 dry_run=false
  94 stream=true
  95 restart=false
  96 temp=$(getopt -l help nrs "$@") || usage 1
  97 eval set -- "$temp"
  98 while true; do
  99   case $1 in
 100     -n) dry_run=true ;;
 101     -r) restart=true ;;
 102     -s) stream=false ;;
 103     -h|--help) usage 0 ;;
 104     --) shift; break ;;
 105     *) echo "$0: Internal error! unexpected args: $*" ; exit 1 ;;
 106   esac
 107   shift
 108 done
 109
 110 ##### end command line parsing ########
 111
 112
 113 xf=$(mktemp)
 114 xrandr >$xf
 115
 116 m() { printf "$script_name: %s\n" "$*"; "$@"; }
 117 if $dry_run; then
 118   m() { printf "$script_name: %s\n" "$*"; }
 119 fi
 120
 121 for mon_suffix in LEFT RIGHT; do
 122   if xrandr --listmonitors | awk '$2 == "BIG-'$mon_suffix\" |grep . >/dev/null; then
 123     m xrandr --delmonitor BIG-$mon_suffix
 124   fi
 125 done
 126
 127
 128 secondary_out=$(awk '$2 == "connected" && $3 != "primary" {print $1}' $xf)
 129 primary_info=$(awk '$2 == "connected" && $3 == "primary" {print $1,$4}' $xf)
 130
 131 # res_info eg: 3840x2160+1920+0
 132 read -r primary_out primary_res_info <<<"$primary_info"
 133
 134 primary_res=${primary_res_info%%+*}
 135 primary_x=${primary_res%x*}
 136 primary_y=${primary_res#*x}
 137
 138
 139 if [[ $secondary_out ]]; then
 140
 141   # some monitors need off then on to become active
 142   if $restart; then
 143     m xrandr --output $secondary_out --off
 144     m sleep 2
 145   fi
 146
 147   x_offset=$primary_x
 148   left_right_arg=--right-of
 149   if [[ $secondary_out == HDMI2 && $(edid card0-HDMI-A-2) == 192efbdcef ]] || \
 150        [[ $secondary_out == HDMI-1 && $(edid card1-HDMI-A-1 ) == 7c58f9ac1e ]] || \
 151        [[ $secondary_out == DP-1 && $(edid card1-DP-1 ) == f3364bc6c1 ]]; then
 152     left_right_arg=--left-of
 153     x_offset=0
 154   fi
 155   left_right_arg="$left_right_arg $primary_out"
 156
 157   target_out=$secondary_out
 158   target_res=$(grep -A1 -E "^$secondary_out " $xf | tail -n1 | awk '{print $1}')
 159   target_x=${target_res%x*}
 160   target_y=${target_res#*x}
 161 else
 162   # disables any leftover secondary.
 163   xrandr --auto
 164   target_out=$primary_out
 165   x_offset=0
 166   target_res=$primary_res
 167   target_x=$primary_x
 168   target_y=$primary_y
 169 fi
 170
 171
 172
 173 if $stream && (( target_x > 1280 )); then
 174
 175   if (( target_x > 2560 )); then
 176     target_x=2560
 177     target_y=1440
 178     target_res=${target_x}x$target_y
 179   fi
 180
 181   if [[ $secondary_out || $primary_res != "$target_res" ]]; then
 182     m xrandr --output $target_out $left_right_arg --mode $target_res
 183   fi
 184
 185   half_x=$(( target_x / 2 ))
 186   # 298 & 336 are millimeters. I took them from a monitor I was using. I
 187   # don't know if they are important, I assume not important enough to
 188   # change for different monitors.
 189   m xrandr --setmonitor BIG-LEFT $half_x/298x$target_y/336+$x_offset+0 $target_out
 190   m xrandr --setmonitor BIG-RIGHT $half_x/298x$target_y/336+$(( x_offset + half_x ))+0 none
 191
 192   move-ws BIG-LEFT 2
 193   move-ws BIG-RIGHT 3 4 5 6 7 8 9 10
 194
 195 else
 196   m xrandr --output $target_out $left_right_arg --mode $target_res
 197   move-ws $target_out 2 3 5 6 7 8 9 10
 198 fi
 199
 200 m /a/bin/ds/i3-sway/gen
 201 m /a/exe/input-setup
 202
 203 echo -n "myx end: "
 204 date "+%A, %B %d, %r, %S seconds"