tmux-sessionizer

#!/usr/bin/env bash
# NOTES:
#  - Remember to make this file executable
#

set -euo pipefail

__test_executable_cmd__() {
	if [[ ! $# -eq 1 ]]; then
		echo "[ERROR]: invalid number of arguments: \`$#\` (expected \`1\`)"
		exit 1
	fi
	if [[ -x $(command -v "$1") ]]; then
		return 0
	fi
	return 1
}

__tmux_fzf_get_session__() {
	cmd="tmux list-sessions -F \"#{session_name}\" 2>/dev/null | fzf --exit-0"
	if __test_executable_cmd__ "bat"; then
		cmd="${cmd} --preview='tmux_tree {} | bat --style plain'"
	fi
	session=$(eval "$cmd")
	echo "$session"
}

tms() {
	local selected
	WORKSPACE=$(tmux showenv -g WORKSPACE | cut -d "=" -f2 || echo "$WORKSPACE")
	if [[ $# -eq 1 ]]; then
		# Use the provided argument as the selected directory
		selected=$1
		fzf
	elif [[ $# -eq 0 ]]; then
		# Determine `find` command
		directories=("$HOME/.config" "$WORKSPACE" "$WORKSPACE/dev" "$HOME/dotfiles")
		if __test_executable_cmd__ "fd"; then
			# shellcheck disable=SC2207
			IFS=$'\n' search=($(fd --min-depth 1 --max-depth 1 -t d . "${directories[@]}"))
			selected=$(printf "%s\n" "${search[@]}" | fzf --exit-0)
		elif __test_executable_cmd__ "find"; then
			# shellcheck disable=SC2207
			IFS=$'\n' search=($(find "${directories[@]}" -mindepth 1 -maxdepth 1 -type d))
			selected=$(printf "%s\n" "${search[@]}" | fzf --exit-0)
		else
			echo "[ERROR]: neither \`fd\` nor \`find\` are executable"
			exit 1
		fi

		# Exit the script if no directory is selected
		if [[ -z "$selected" ]]; then
			exit 0
		fi

		session_name=$(echo "$selected" | tr ".-" "__")
		if ! tmux has-session -t="$session_name" 2>/dev/null; then
			tmux new-session -ds "$session_name" -c "$selected"
		fi

		tmux switch-client -t "$session_name"
	else
		echo "[ERROR]: invalid number of arguments: \`$#\` (expected \`0\` or \`1\`)"
	fi
}

tms "$@"