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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def create_shipfile(target, source, env):
 """Create a .ship file with all dependencies."""


    source_dir = os.path.dirname(str(source[0]))
    recipe_name = os.path.basename(str(source[0]))[:-5]

    resman = RecipeManager()

    resman.add_recipe_actions(env['CUSTOM_STEPS'])
    resman.add_recipe_folder(source_dir, whitelist=[os.path.basename(str(source[0]))])
    recipe = resman.get_recipe(recipe_name)

    recipe.archive(str(target[0]))