Debian changelog to XML converter

debchangelog2xml.py

#!/usr/bin/env python3.8

import sys
import argparse
from dateutil import parser
from datetime import datetime

argparser = argparse.ArgumentParser(description="convert debian-style changelog to XML")
argparser.add_argument('deb_changelog', type=str, help="existing deb changelog file")
argparser.add_argument('--pkgname', type=str, required=True, help="package name")
argparser.add_argument('--splitver', action='store_true', default=False, help="split version to ver and basever (e.g. for njs)")

args = argparser.parse_args()

f = open(args.deb_changelog, "r")

changes = []
basever = None

for line in f:
    done = 0

    if line.startswith(args.pkgname):
        verstring = line.split('(')[1].split('~')[0]
        ver = verstring.split('-')[0]
        rev = verstring.split('-')[1]

        if args.splitver:
            try:
                vs = ver.split('.')
                basever = "%s.%s.%s" % (vs[0], vs[1], vs[2])
                ver = "%s.%s.%s" % (vs[3], vs[4], vs[5])
            except:
                pass

    if line.startswith("  *"):
        changes.append(line[4:].rstrip())

    if line.startswith(" --"):
        packager = line[4:].split('>')[0] + '>'
        dtstr = line[4:].split('>')[1].lstrip().rstrip()
        done = 1

    if done == 1:
        dt = parser.parse(dtstr)
        datestr = dt.strftime('%Y-%m-%d')
        timestr = dt.strftime('%H:%M:%S %z')
        packager = packager.replace('<', '&lt;')
        packager = packager.replace('>', '&gt;')

        if basever:
            baseverstr = " basever=\"%s\"" % basever
        else:
            baseverstr = ''

        print("""
<changes apply="%s" ver="%s" rev="%s"%s
         date="%s" time="%s"
         packager="%s">
""" % (args.pkgname, ver, rev, baseverstr, datestr, timestr, packager), end='')
        for change in changes:
            print("""
<change>
<para>
%s
</para>
</change>
""" % change, end='')

        print("\n</changes>\n")

        changes = []
        basever = None
        done = 0