#!/usr/bin/env python3
#
# Copyright 2013 The Flutter Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

"""
Copies the Info.plist and adds extra fields to it like the git hash of the
engine.

Precondition: $CWD/../../flutter is the path to the flutter engine repo.

usage: copy_info_plist.py --source <src_path> --destination <dest_path> --bitcode --minversion=<deployment_target>
"""

import subprocess

import argparse
import sys
import git_revision
import os

def GetClangVersion(bitcode) :
  clang_executable = str(os.path.join("..", "..", "buildtools", "mac-x64", "clang", "bin", "clang++"))
  if bitcode:
    clang_executable = "clang++"
  version = subprocess.check_output([clang_executable, "--version"])
  return version.splitlines()[0]

def main():

  parser = argparse.ArgumentParser(
      description='Copies the Info.plist and adds extra fields to it like the git hash of the engine')

  parser.add_argument('--source', help='Path to Info.plist source template', type=str, required=True)
  parser.add_argument('--destination', help='Path to destination Info.plist', type=str, required=True)
  parser.add_argument('--bitcode', help='Built with bitcode', action='store_true')
  parser.add_argument('--minversion', help='Minimum device OS version like "9.0"', type=str)

  args = parser.parse_args()

  text = open(args.source).read()
  engine_path = os.path.join(os.getcwd(), "..", "..", "flutter")
  revision = git_revision.GetRepositoryVersion(engine_path)
  bitcode = args.bitcode is not None;
  clang_version = GetClangVersion(bitcode)
  text = text.format(revision = revision, clang_version = clang_version, min_version = args.minversion)

  with open(args.destination, "w") as outfile:
    outfile.write(text)

if __name__ == "__main__":
  main()