#!/usr/bin/python

# Created by Egor Zubkov on 17/12/14.
# Copyright 2014 NIX. All rights reserved.

import os
import plistlib

last_revision_filename = "_last_revision.sh"
unity_last_build_vars_filename = "_unity_last_build_vars.plist"

monotomic_revision_var = "$MONOTONIC_REVISION"
working_copy_is_clean_var = "$WORKING_COPY_IS_CLEAN"

configuration_key = "Configuration"
revision_number_key = "RevisionNumber"
build_path_key = "BuildPath"


def revision_number():
    command = os.popen("source %s && echo %s" % (last_revision_filename, monotomic_revision_var))
    revision_number = command.read().strip()

    if revision_number == '':
        exit(1)

    return revision_number


def save_env_vars(configuration, build_path):
    plist = { configuration_key : configuration, revision_number_key : revision_number(), build_path_key : build_path }

    last_build_vars = os.path.join(os.getcwd(), unity_last_build_vars_filename)
    plistlib.writePlist(plist, last_build_vars)


def env_vars():
    last_build_vars_path = os.path.join(os.getcwd(), unity_last_build_vars_filename)
    last_build_vars = plistlib.readPlist(last_build_vars_path)
    return last_build_vars[configuration_key], last_build_vars[revision_number_key], last_build_vars[build_path_key]