check_java_version.py

import sys
import os
import re
import json
import base64

REFERENCE_BRANCH_NAME = 'develop'
GRADLE_FILE_PATH = './adaa.analytics.rules/build.gradle'
GET_GRADLE_COMMAND = f'git show {REFERENCE_BRANCH_NAME}:{GRADLE_FILE_PATH}'

class Version:

  def __init__(self, version_string: str):
    parts = version_string.split('.')
    
    if len(parts) > 3:
      raise Exception('Invalid version format')
    else:
      self._major = int(parts[0])
      self._minor = int(parts[1])
      self._patch = int(parts[2])

  def major(self):
    self._major += 1

  def minor(self):
    self._minor += 1

  def patch(self):
    self._patch += 1

  def __eq__(self, other):
    return (self.to_number() == other.to_number())

  def __ne__(self, other):
    return (self.to_number() != other.to_number())

  def __lt__(self, other):
    return (self.to_number() < other.to_number())

  def __le__(self, other):
    return (self.to_number() <= other.to_number())

  def __gt__(self, other):
    return (self.to_number() > other.to_number())

  def __ge__(self, other):
    return (self.to_number() >= other.to_number())

  def to_number(self):
    return (self._major * 100) + (self._minor * 10) + self._patch

  def __str__(self):
    return f'{self._major}.{self._minor}.{self._patch}'


def get_build_gradle_from_branch(branch_name: str) -> str:
  return os.popen(GET_GRADLE_COMMAND).read()

def get_version_from_gradle(build_gradle_content: str) -> Version:
  matches = re.findall(r"-*\+*version\s*=*\s*'\S+'\n", build_gradle_content)
  max_version = None
  for match in matches:
    version_line = match
    version_string = version_line.split("'")[1::2][0]
    version = Version(version_string)
    if max_version is None or version > max_version:
      max_version = version
  return max_version


if __name__ == "__main__":
  build_gradle_file = open(GRADLE_FILE_PATH, "r")
  my_build_gradle_content = build_gradle_file.read()
  their_build_gradle_content = get_build_gradle_from_branch(REFERENCE_BRANCH_NAME)
  my_version = get_version_from_gradle(my_build_gradle_content)
  their_version = get_version_from_gradle(their_build_gradle_content)
  if my_version <= their_version:
    print(f'Local version ({str(my_version)}) lower or equal than their version ({str(their_version)}).')
    exit(1)
  exit(0)