ssh-picker

#!/bin/sh
# picker for launching SSH sessions to servers defined in $HOME/.ssh/config

SSH_CONFIG="$HOME/.ssh/config"
TERM="foot" # change me!

construct_list() {
  HOSTS="$(awk '/^Host [^*]/ {print $2}' $SSH_CONFIG)"
  for h in $HOSTS; do
    HOSTNAME="$(awk -v host="$h" '
      /^Host / { in_host = ($2 == host) }
      in_host && /^[[:space:]]*HostName/ { print $2; exit }
      /^Host / && $2 != host { in_host = 0 }
    ' $SSH_CONFIG)"
    HOSTNAME="${HOSTNAME:-$h}"
    
    SSH_USER="$(awk -v host="$h" '
      /^Host / { in_host = ($2 == host) }
      in_host && /^[[:space:]]*User/ { print $2; exit }
      /^Host / && $2 != host { in_host = 0 }
    ' $SSH_CONFIG)"
    SSH_USER="${SSH_USER:-$USER}" # default to logged in username
    
    PORT="$(awk -v host="$h" '
      /^Host / { in_host = ($2 == host) }
      in_host && /^[[:space:]]*Port/ { print $2; exit }
      /^Host / && $2 != host { in_host = 0 }
    ' $SSH_CONFIG)"
    PORT="${PORT:-22}"
    
    echo "󰒋  $h ($SSH_USER@$HOSTNAME:$PORT)"
  done
}

selection="$(printf "$(construct_list)" | fuzzel --dmenu --width=36 --prompt='Server: ' | awk '{print $2}')"
exec $TERM -e ssh "$selection"