Waybar multi screen support

[moguay]

Hi, have build this morning a draft to change your waybar script builder to mange multi screen support.
can have a spécifique waybar setup for each screen.

each display id as identify by the serial number corresponding
the setup is stored by setupID = wabarID for 3, 2 or 1 display enable

the output of the builder :

`❯ ~/.config/hyprdots/scripts/wbarconfgen2.sh
Monitor Count: 3

Monitor ID: 0
Monitor Output: HDMI-A-1
Monitor Model: Kamvas Pro16+
Monitor Serial: 0x01010101
Monitor Description: HAT Kamvas Pro16+ 0x01010101 (HDMI-A-1)

Monitor ID: 1
Monitor Output: DP-1
Monitor Model: LA2405
Monitor Serial: CN41470SDV
Monitor Description: Hewlett Packard LA2405 CN41470SDV (DP-1)

Monitor ID: 2
Monitor Output: DP-3
Monitor Model: PL4372UH
Monitor Serial: 0x000000C2
Monitor Description: Iiyama North America PL4372UH 0x000000C2 (DP-3)

Monitors Setup: ID0=0x01010101,ID1=CN41470SDV,ID2=0x000000C2

Build waybar config 4 on display 0 port HDMI-A-1
mod=( cpu memory custom/cpuinfo ) ( idle_inhibitor clock ) ( hyprland/workspaces ) id=4 col=4
mod=( hyprland/window ) id=4 col=5
mod=( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates custom/keybindhint ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power ) id=4 col=6

Build waybar config 3 on display 1 port DP-1
mod=( cpu memory custom/cpuinfo custom/gpuinfo ) ( idle_inhibitor clock ) ( hyprland/workspaces ) id=3 col=4
mod=( hyprland/window ) id=3 col=5
mod=( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates custom/keybindhint ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power ) id=3 col=6

Build waybar config 1 on display 2 port DP-3
mod=( cpu memory custom/cpuinfo custom/gpuinfo ) ( idle_inhibitor clock ) id=1 col=4
mod=( hyprland/workspaces hyprland/window ) id=1 col=5
mod=( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates custom/keybindhint ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power ) id=1 col=6

❯ `

[moguay]

A sample of result with my 3 screens and différente configuration on each on

[moguay]

Below the config.ctl for manage dynamicly waybars

# Display config
ID0=52|ID0=0x01010101,ID1=CN41470SDV,ID2=0x000000C2
ID1=51|ID0=0x01010101,ID1=CN41470SDV,ID2=0x000000C2
ID2=50|ID0=0x01010101,ID1=CN41470SDV,ID2=0x000000C2

ID1=1|ID1=CN41470SDV,ID2=0x000000C2
ID2=1|ID1=CN41470SDV,ID2=0x000000C2

ID2=1|ID2=0x000000C2

# Waybar config
1|28|bottom|( cpu memory custom/cpuinfo custom/gpuinfo ) ( idle_inhibitor clock )|( hyprland/workspaces hyprland/window )|( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates custom/keybindhint ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power )
2|28|top|( cpu memory custom/cpuinfo custom/gpuinfo ) ( idle_inhibitor clock )|( hyprland/workspaces hyprland/window )|( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates custom/keybindhint ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power )
3|28|bottom|( cpu memory custom/cpuinfo custom/gpuinfo ) ( idle_inhibitor clock ) ( hyprland/workspaces )|( hyprland/window )|( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates custom/keybindhint ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power )
4|28|top|( cpu memory custom/cpuinfo ) ( idle_inhibitor clock ) ( hyprland/workspaces )|( hyprland/window )|( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates custom/keybindhint ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power )
5||bottom||( hyprland/workspaces hyprland/window )|( idle_inhibitor clock )|( cpu memory custom/cpuinfo custom/gpuinfo ) ( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates custom/keybindhint ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power )
6||top||( hyprland/workspaces hyprland/window )|( idle_inhibitor clock )|( cpu memory custom/cpuinfo custom/gpuinfo ) ( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates custom/keybindhint ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power )
7|31|bottom|( custom/power custom/cliphist custom/wbar custom/theme custom/wallchange ) ( wlr/taskbar custom/spotify ) |( idle_inhibitor clock )|( tray battery ) ( backlight network bluetooth pulseaudio pulseaudio#microphone custom/keybindhint )
8|31|left|( custom/power custom/cliphist custom/wbar custom/theme custom/wallchange ) ( wlr/taskbar custom/spotify ) |( idle_inhibitor clock )|( tray battery ) ( backlight network bluetooth pulseaudio pulseaudio#microphone custom/keybindhint )
9|31|top|( custom/power custom/cliphist custom/wbar custom/theme custom/wallchange ) ( wlr/taskbar custom/spotify ) |( idle_inhibitor clock )|( tray battery ) ( backlight network bluetooth pulseaudio pulseaudio#microphone custom/keybindhint )
10|31|right|( custom/power custom/cliphist custom/wbar custom/theme custom/wallchange ) ( wlr/taskbar custom/spotify ) |( idle_inhibitor clock )|( tray battery ) ( backlight network bluetooth pulseaudio pulseaudio#microphone custom/keybindhint )
11|32|bottom||( custom/power ) ( tray battery ) ( wlr/taskbar idle_inhibitor clock ) ( custom/cliphist ) ( custom/wbar ) ( custom/wallchange ) ( custom/theme )|
12|32|left||( custom/power ) ( tray battery ) ( wlr/taskbar idle_inhibitor clock ) ( custom/cliphist ) ( custom/wbar ) ( custom/wallchange ) ( custom/theme )|
13|32|top||( custom/power ) ( tray battery ) ( wlr/taskbar idle_inhibitor clock ) ( custom/cliphist ) ( custom/wbar ) ( custom/wallchange ) ( custom/theme )|
14|32|right||( custom/power ) ( tray battery ) ( wlr/taskbar idle_inhibitor clock ) ( custom/cliphist ) ( custom/wbar ) ( custom/wallchange ) ( custom/theme )|
15|31|bottom|( cpu memory custom/cpuinfo custom/gpuinfo ) ( idle_inhibitor clock ) ( hyprland/workspaces )|( wlr/taskbar )|( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates custom/keybindhint ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power )
16|31|top|( cpu memory custom/cpuinfo custom/gpuinfo ) ( idle_inhibitor clock ) ( hyprland/workspaces )|( wlr/taskbar )|( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates custom/keybindhint ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power )
17|29|bottom|( wlr/taskbar mpris )|( idle_inhibitor clock )|( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power )
18|29|left|( wlr/taskbar mpris )|( idle_inhibitor clock )|( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power )
19|29|top|( wlr/taskbar mpris )|( idle_inhibitor clock )|( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power )
20|29|right|( wlr/taskbar mpris )|( idle_inhibitor clock )|( backlight network bluetooth pulseaudio pulseaudio#microphone custom/updates ) ( tray battery ) ( custom/wallchange custom/theme custom/wbar custom/cliphist custom/power )
21|28|bottom|( custom/power custom/cliphist custom/wbar custom/theme custom/wallchange ) ( idle_inhibitor clock custom/spotify )|( wlr/taskbar )|( tray ) ( backlight network bluetooth pulseaudio pulseaudio#microphone )
22|28|left|( custom/power custom/cliphist custom/wbar custom/theme custom/wallchange ) ( idle_inhibitor clock custom/spotify )|( wlr/taskbar )|( tray ) ( backlight network bluetooth pulseaudio pulseaudio#microphone )
23|28|top|( custom/power custom/cliphist custom/wbar custom/theme custom/wallchange ) ( idle_inhibitor clock custom/spotify )|( wlr/taskbar )|( tray ) ( backlight network bluetooth pulseaudio pulseaudio#microphone )
24|28|right|( custom/power custom/cliphist custom/wbar custom/theme custom/wallchange ) ( idle_inhibitor clock custom/spotify )|( wlr/taskbar )|( tray ) ( backlight network bluetooth pulseaudio pulseaudio#microphone )

50|40|bottom|( custom/arch ) ( custom/wbar ) ( hyprland/workspaces )|( wlr/taskbar )|( custom/monitor cpu custom/gpu memory custom/cpuinfo custom/gpuinfo )
51|40|top|( custom/arch ) ( custom/cliphist custom/wbar custom/wallbash custom/theme custom/wallchange cava ) ( hyprland/workspaces )|( wlr/taskbar )|( tray ) ( custom/updates ) ( custom/weather backlight network bluetooth pulseaudio#microphone pulseaudio custom/notifications )
52|50|top|( custom/arch ) ( custom/wbar ) ( hyprland/workspaces ) ( wlr/taskbar )|( idle_inhibitor clock cava custom/spotify )|( tray ) ( custom/weather backlight network bluetooth pulseaudio#microphone pulseaudio custom/notifications )

[moguay]

And my current wbarconfgen.sh to do that :

• now the update of the script to add prev / next waybar config selection

#!/usr/bin/env sh


# read control file and initialize variables

export ScrDir=`dirname "$(realpath "$0")"`
waybar_dir="${XDG_CONFIG_HOME:-$HOME/.config}/waybar"
modules_dir="$waybar_dir/modules"
conf_file="$waybar_dir/config.jsonc"
conf_ctl="$waybar_dir/config.ctl"
default_waybar_id="1"

# module generator function
gen_mod()
{
    local id=$1
    local pos=$2
    local col=$3
    local mod=""
    mod=`grep "^$id|" $conf_ctl | cut -d '|' -f ${col}`
    echo "mod=$mod id=$id col=$col"
    mod="${mod//(/"custom/l_end"}"
    mod="${mod//)/"custom/r_end"}"
    mod="${mod//[/"custom/sl_end"}"
    mod="${mod//]/"custom/sr_end"}"
    mod="${mod//\{/"custom/rl_end"}"
    mod="${mod//\}/"custom/rr_end"}"
    mod="${mod// /"\",\""}"
    echo -e "\t\"modules-${pos}\": [\"custom/padd\",\"${mod}\",\"custom/padd\"]," >> $conf_file
    write_mod=`echo $write_mod $mod`
}

# Function to create a new screen configuration
create_new_config() {
    local monitors_setup="$1"
    local default_waybar_id="$2"
    local build_setup=""

    local IFS=","
    for monitor in $monitors_setup; do
        local id=${monitor%%=*}
        local value=${monitor#*=}

        build_setup+="$id=$default_waybar_id|$monitors_setup\n" # Append monitorID=default_waybar_id and the monitors_setup to 'build_setup'
    done

    echo "Adding new displays setup to $(basename "$conf_ctl"): $build_setup"

    local found=0  # Flag to track the first '#'
    awk -v bs="$build_setup" '/^#/ && !found {print; print bs; found=1; next} 1' "${conf_ctl}" > "${ScrDir}/tmp" && mv "${ScrDir}/tmp" "${conf_ctl}"  # Insert 'build_setup' after the first '#'
}

# Find all waybar ids
find_values() {
  # Initialize an empty array
  values=()

  # Read the file line by line
  while IFS= read -r line
  do
    # Check if the line contains exactly 5 separators |
    if [[ $(echo $line | tr -cd '|' | wc -c) -eq 5 ]]; then
      # Extract the first argument (assuming it's before the first |)
      value=$(echo $line | cut -d'|' -f1)
      # Check if the value is a number
      if [[ $value =~ ^[0-9]+$ ]]; then
        # Store the value in the array
        values+=($value)
      fi
    fi
  done < "$1"

  # Return the array of values
  echo ${values[@]}
}

# Get the list of connected displays in JSON format
connected_outputs=$(hyprctl monitors -j)

# Count the number of monitors by counting the number of 'id' fields in the JSON output
monitor_count=$(echo "$connected_outputs" | jq '.[] | .id' | wc -l)
echo "Monitor Count: $monitor_count"
echo

# Init the current display setup
monitors_setup=""

# Iterate over the outputs using a for loop
for (( monitor_inc=0; monitor_inc<$monitor_count; monitor_inc++ )); do
    # Extract the monitor object with the current ID
    monitor_json=$(echo "$connected_outputs" | jq -c ".[] | select(.id == $monitor_inc)")

    # Extract the parameters for the current monitor
    monitor_id=$(echo "$monitor_json" | jq -r '.id')
    monitor_output=$(echo "$monitor_json" | jq -r '.name')
    monitor_model=$(echo "$monitor_json" | jq -r '.model')
    monitor_serial=$(echo "$monitor_json" | jq -r '.serial')
    monitor_description=$(echo "$monitor_json" | jq -r '.description')

    echo "Monitor ID: $monitor_id"
    echo "Monitor Output: $monitor_output"
    echo "Monitor Model: $monitor_model"
    echo "Monitor Serial: $monitor_serial"
    echo "Monitor Description: $monitor_description"
    echo

    # Add the monitor setup to the monitors_setup variable
    if [ -z "$monitors_setup" ]; then
        monitors_setup="ID$monitor_id=$monitor_serial"
    else
        monitors_setup="$monitors_setup,ID$monitor_id=$monitor_serial"
    fi

done

echo "Monitors Setup: $monitors_setup"
echo

# Find the corresponding configuration line in the configuration file and extract the first argument
monitors_conf_ID=$(awk -F'|' -v setup="$monitors_setup" '$2 ~ setup {print $1}' $conf_ctl)

# Print the first arguments
# echo -e "Monitors waybar ID:\n$monitors_conf_ID"
# echo

# Check if $monitor_conf_ID is found
if [ -z "$monitors_conf_ID" ]; then
    # If the current screen configuration is not found, create a new one
    create_new_config "$monitors_setup" "$default_waybar_id"

    # Find the corresponding configuration line in the configuration file and extract the first argument
    monitors_conf_ID=$(awk -F'|' -v setup="$monitors_setup" '$2 ~ setup {print $1}' $conf_ctl)
fi

# Check if $monitor_conf_ID is found
if [ ! -z "$monitors_conf_ID" ]; then

    # read control file
    readarray -t read_ctl < $conf_ctl
    switch=0
    waybar_ids=()

    # Start of config file
    echo "[" > $conf_file

    # Analyze each line in $monitors_conf_ID
    echo "$monitors_conf_ID" | while read line; do
    # echo "line: $line"

        # Use parameter expansion to remove 'ID' from the beginning of the string
        temp=${line#ID}
        # Split the string on '='
        displayID=${temp%%=*}  # Get the part before '='
        waybarID=${temp#*=}  # Get the part after '='

        # Get the index of the current display
        current_displayID=$(hyprctl -j monitors | jq '.[] | select(.focused==true) | .id')

        # update control file to set next/prev mode
        if [ "$1" = "n" ] || [ "$1" = "p" ] ; then
            # only if displayID and current displayID matches
            if [ "$current_displayID" = "$displayID" ] ; then
                # Find all waybar ids only if waybar_ids is empty
                if [ -z "$waybar_ids" ]; then
                    waybar_ids=($(find_values $conf_ctl))
                fi
                # Display the values
                echo
                echo "Waybar IDs: ${waybar_ids[@]}"

                array_length=${#waybar_ids[@]} # Get the length of the array
                waybarID_index=$(echo ${waybar_ids[@]} | tr ' ' '\n' | grep -n -x $waybarID | cut -d':' -f1) # Get the index of the current waybarID in the array

                if [ "$1" = "n" ] ; then
                    # Calculate the next index, handling overflow
                    next_index=$(( (waybarID_index % array_length) ))
                    next_id=${waybar_ids[$next_index]}
                    switch=1
                elif [ "$1" = "p" ] ; then
                    # Calculate the previous index, handling underflow
                    next_index=$(( (waybarID_index - 2 + array_length) % array_length ))
                    next_id=${waybar_ids[$next_index]}
                    switch=1
                fi

                if [ $switch -eq 1 ] ; then
                    echo "Set newID $next_id, previous ID: $waybarID into $(basename "$conf_ctl")"

                    # build displays setup
                    old_setup="$displayID=$waybarID|$monitors_setup"
                    new_setup="$displayID=$next_id|$monitors_setup"

                    # Use sed to replace the old setup line with the new one in the file
                    sed -i "s#$old_setup#$new_setup#g" "$conf_ctl"

                    # Apply the new ID
                    switch=0
                    waybarID=$next_id
                    export reload_flag=1
                fi
            fi
        fi

        # export display as monitor output port name
        monitor_json=$(echo "$connected_outputs" | jq -c ".[] | select(.id == $displayID)")
        monitor_output=$(echo "$monitor_json" | jq -r '.name')
        export display=$monitor_output

        echo
        echo "Build waybar config $waybarID on display $displayID port $monitor_output"

        # echo "displayID=$displayID"
        # echo "waybarID=$waybarID"

        if [ $waybarID -gt 0 ]; then
            # overwrite config from header module

            export set_sysname=`hostnamectl hostname`
            export w_position=`grep "^$waybarID|" $conf_ctl | cut -d '|' -f 3`

            case ${w_position} in
                left) export hv_pos="width" ; export r_deg=90 ;;
                right) export hv_pos="width" ; export r_deg=270 ;;
                *) export hv_pos="height" ; export r_deg=0 ;;
            esac

            export w_height=`grep "^$waybarID|" $conf_ctl | cut -d '|' -f 2`
            if [ -z $w_height ] ; then
                y_monres=`cat /sys/class/drm/*/modes | head -1 | cut -d 'x' -f 2`
                export w_height=$(( y_monres*2/100 ))
            fi

            export i_size=$(( w_height*6/10 ))
            if [ $i_size -lt 12 ] ; then
                export i_size="12"
            fi

            export i_theme=`gsettings get org.gnome.desktop.interface icon-theme | sed "s/'//g"`
            export i_task=$(( w_height*6/10 ))
            if [ $i_task -lt 16 ] ; then
                export i_task="16"
            fi

            envsubst < $modules_dir/header.jsonc >> $conf_file

            # write positions for modules

            echo -e "\n\n// positions generated based on config.ctl //\n" >> $conf_file
            gen_mod "$waybarID" left 4
            gen_mod "$waybarID" center 5
            gen_mod "$waybarID" right 6


            # copy modules/*.jsonc to the config

            echo -e "\n\n// sourced from modules based on config.ctl //\n" >> $conf_file
            echo "$write_mod" | sed 's/","/\n/g ; s/ /\n/g' | awk -F '/' '{print $NF}' | awk -F '#' '{print $1}' | awk '!x[$0]++' | while read mod_cpy
            do
                if [ -f $modules_dir/$mod_cpy.jsonc ] ; then
                    envsubst < $modules_dir/$mod_cpy.jsonc >> $conf_file
                fi
            done


            cat $modules_dir/footer.jsonc >> $conf_file

        fi
    done

    # End of config
    echo "]" >> $conf_file

    # generate style and restart waybar

    $ScrDir/wbarstylegen.sh
fi