tmux_sessions.sh

#!/usr/bin/env bash

set -euo pipefail

PROJECTS_DIR="${PROJECTS_DIR:-$HOME/projects}"

fzf_opts=(
  --border-label ' projects '
  --delimiter /
  --with-nth -1
  --prompt 'open project > '
)

switch_or_attach() {
  local session_name=$1

  if [[ -n ${TMUX:-} ]]; then
    tmux switch-client -t "=$session_name"
  else
    tmux attach-session -t "=$session_name"
  fi
}

if [[ $# -eq 1 ]]; then
  selected=$1
else
  selected=$(
    find "$PROJECTS_DIR" -mindepth 1 -maxdepth 1 -type d -not -path '*_archived*' |
      sort -df |
      fzf "${fzf_opts[@]}"
  ) || exit 0
fi

if [[ -z $selected ]]; then
  exit 0
fi

selected_name=$(basename "$selected" | sed 's/[^A-Za-z0-9_-]/_/g')

if tmux has-session -t "=$selected_name" 2> /dev/null; then
  switch_or_attach "$selected_name"
else
  if [[ -z ${TMUX:-} ]]; then
    tmux new-session -s "$selected_name" -c "$selected"
  else
    tmux new-session -ds "$selected_name" -c "$selected"
    tmux switch-client -t "=$selected_name"
  fi
fi