version.py

from win32api import GetFileVersionInfo, LOWORD, HIWORD
import os
import re

def get_version_number(filename):
    """ Get the version number of the specified file as a string """
    info = GetFileVersionInfo(filename, "\\")
    ms = info['ProductVersionMS']
    ls = info['ProductVersionLS']
    return ".".join(map(str, (HIWORD(ms), LOWORD(ms), HIWORD(ls), LOWORD(ls))))

def update_rdf(mappings):
    """ Update install.rdf with current version as minimum """
    for prog in mappings:
        print("Getting version for " + mappings[prog])
        mappings[prog] = get_version_number(mappings[prog])
        print(mappings[prog])
    input_file = "install.rdf"
    output_file = f"source\\{input_file}"
    version = ''
    name = None
    magic_lines = []
    with open(input_file, encoding="utf-8") as infile:
        with open(output_file, "w", encoding="utf-8") as outfile:
            for line in infile:
                # If it's the version line, use version from changes.md
                res = re.search(r'\<em:version\>(.*)\</em:version\>', line)
                if res:
                    # Read the first line of changes.md
                    print("Looking for version")
                    with open("Changes.md") as changes:
                        changeline = changes.readline().rstrip()
                    # Update the minimum version
                    changeline = changeline[16:]
                    line = re.sub(r'>(.*)<', '>' + changeline + '<', line)
                # Look for an ID line
                res = re.search(r'\<em:id\>(.*)\</em:id\>', line)
                if res:
                    if res.group(1) in mappings:
                        # Found one I support - get the version
                        version = mappings[res.group(1)]
                    else:
                        # Not one I support
                        version = ''
                if 'minVersion' in line and version != '':
                    # Update the minimum version
                    line = re.sub(r'>(.*)<', '>' + version + '<', line)

                if '<em:name>' in line:
                    name = line
                for magic in (
                    'contributor',
                    'creator',
                    'developer',
                    'translator'
                ):
                    if f"<em:{magic}>" in line:
                        magic_lines += [ line ]

                # This is required for seamonkey only.
                if "</Description>" in line and name is not None:
                    print(" " * 4 + name, end='', file=outfile)
                    for magic in magic_lines:
                        print(" " * 4 + magic, end='', file=outfile)

                print(line, end='', file=outfile)

if __name__ == '__main__':
    mappings = {
        "{8de7fcbb-c55c-4fbe-bfc5-fc555c87dbc4}":
            "c:\\Program Files\\Pale Moon\\palemoon.exe",
        "{ec8030f7-c20a-464f-9b0e-13a3a9e97384}":
            "C:\\Program Files\\Basilisk\\basilisk.exe",
        "{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}":
            "C:\\Program Files\\SeaMonkey\\seamonkey.exe"
    }
    update_rdf(mappings)