Pull out useful MANIFEST.MF stuff for BBTart app on BB10

import os
import re
import datetime as dt
import time


MANIFEST_PATH = 'app/META-INF/MANIFEST.MF'
DEVICEINFO_PATH = '/pps/services/deviceproperties'
BUILDINFO_PATH = 'app/native/build.info'

class AppUtil:
    # default values
    date = '2012-01-01'
    title = 'ThisApp'
    author = 'Author'
    app_version = '0.0'
    os_version = '10.0'

    def __init__(self):
        try:
            with open(MANIFEST_PATH) as manifest:
                text = manifest.read(2000)
                for pat, name in [
                    (r'Application-Version: (.+)', 'app_version'),
                    (r'Application-Name: (.+)', 'title'),
                    (r'Package-Author: (.+)', 'author'),
                    ]:
                    match = re.search(pat, text)
                    if match:
                        setattr(self, name, match.group(1))

                    # print(name, getattr(self, name))
        except IOError:
            pass

        try:
            with open(DEVICEINFO_PATH) as devinfo:
                text = devinfo.read()

                for pat, name in [
                    (r'scmbundle::(.+)', 'os_version'),
                    ]:
                    match = re.search(pat, text)
                    if match:
                        setattr(self, name, match.group(1))

                    # print(name, getattr(self, name))
        except IOError:
            pass

        try:
            with open(BUILDINFO_PATH) as buildinfo:
                text = buildinfo.read().strip()
                build_time = dt.datetime.strptime(text, '%Y-%m-%d %H:%M:%S.%f')
                self.date = str(build_time.date())
                self.build_time = str(build_time)
        except IOError:
            pass


metadata = AppUtil()


# EOF