ftwind

#!/usr/bin/env bash
# ftwind - switch window (based on @george-b)
GREEN='\033[00;32m'
RESTORE='\033[0m'

# Get information about windows from tmux
windows_str=$(tmux list-windows -F '#I #{pane_current_path} #{window_name} #{window_active}')

# Process windows_str
windows=''
delim=''
actives=()
nums=()
while read -r line; do
   line_array=($line)

   num=${line_array[0]}
   dir_name=$(basename ${line_array[1]})
   name=${line_array[2]}
   active=${line_array[3]}

   # Pad num
   [ "$num" -le "9" ] && num="$num "

   # Change color and add * if active
   if [ "$active" -eq "1" ]
   then
      actives+=("*")
      nums+=("$GREEN$num$RESTORE")
   else
      actives+=(" ")
      nums+=("$num")
   fi

   # Create output line
   out=$(echo -e "$name\t$dir_name")

   # Add to windows string
   windows=$(printf '%s%s%s' "$windows" "$delim" "$out")

   # So that join works
   delim=$'\n'
done <<< "$windows_str"

# Align on columns
windows=$(column -s $'\t' -t <<< "$windows")

# Split by newlines
IFS=$'\n' read -rd '' -a window_arr <<<"$windows"

# Add * and number at beginning, as these aren't handled correctly by column
# command
windows=''
delim=''
for (( i=0; i<${#window_arr[*]}; ++i))
do
   out=$(echo -e "${actives[$i]} ${nums[$i]} ${window_arr[$i]}")
   windows=$(printf '%s%s%s%s' "$windows" "$delim" "$out")
   delim=$'\n'
done

# Run fzf and check result
target=$(echo "$windows" | fzf-tmux +m --reverse --ansi)
res=$?
[ "$res" -eq "130" ] && exit 0
[ "$res" -eq "0" ] || exit $res

# Extract window number, handling * correctly
target_window=$(echo "$target" | cut -d' ' -f2)
[ "$target_window" = "" ] && \
   target_window=$(echo "$target" | cut -d' ' -f3)

# Select window
tmux select-window -t $target_window