OpenTerminal.py

import sublime
import sublime_plugin
import os
from subprocess import Popen

class OpenTerminal(sublime_plugin.WindowCommand):

	def _get_paths(self, paths):
		# empty list
		result = []

		# loop paths and add to valid directories
		for path in paths:
			if path == "?filename":
				if not self.window.active_view().file_name() is None:
					result.append(os.path.dirname(os.path.realpath(self.window.active_view().file_name())))
			elif os.path.isfile(path):
				result.append(os.path.dirname(os.path.realpath(path)))
			elif os.path.isdir(path):
				result.append(os.path.realpath(path))
			else:
				pass

		# remove duplicates
		if len(result) > 0:
			result = list(set(result))

		# finally...
		return result

	def run(self, paths):
		# get command from settings
		settings = sublime.load_settings("OpenTerminal.sublime-settings")
		command = settings.get("command", "gnome-terminal --working-directory=\"{0}\"")
		paths = self._get_paths(paths)

		# add home directory if list is empty
		if len(paths) == 0:
			paths.append(os.path.expanduser("~"))

		# open each path in terminal
		for path in paths:
			Popen(command.format(path), shell=True)

	def description(self, paths):
		# default caption
		return None

	def is_visible(self, paths):
		# always visible
		return True

	def is_enabled(self, paths):
		return len(self._get_paths(paths)) > 0