bin/workspace


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#!/bin/zsh

# Command to use
[[ $1 = 'n' ]] && cmd="workspace" || cmd="move container to workspace"

# List of workspaces
workspaces=$(i3-msg -t get_workspaces | grep -Po '"name":.*?[^\\]"' | sed 's/"name":"\([^"]\+\)"/\1/g')

# Get desired workspace
target=$(echo $workspaces | dmenu -i -sf green -p "Go to workspace:")

# Exit if empty
[[ -z $target ]] && exit

# If new workspace has to be created
if [[ ! $target = [0-9]* ]]; then

    # Calculate number for new workspace
    used_numbers=$(echo $workspaces | awk 'BEGIN { FS = ":" } ; { print $1 }')
    max_number=$(echo $used_numbers | tail -1)
    lowest_gap=$(echo $used_numbers | awk '$1!=p+1{print p+1}{p=$1}' | head -1)
    [[ -z $lowest_gap ]] && new_number=$(($max_number +  1)) || new_number=$lowest_gap

    # Add number to workspace name
    target=$new_number:$target
fi

# Execute command
exec i3-msg $cmd $target