#!/usr/bin/python

# script to sanity check config file values

import sys, os

import re

set_regex = re.compile(r'^(?P<key>CONFIG.+)=(?P<value>.+)$')

unset_regex = re.compile(r'^# (?P<key>CONFIG.+) is not set$')

class Config(object):

    def __init__(self, file):

        self.file = file

        f = open(file)

        self.lines = f.readlines()

        f.close()

        self.configs = {}

    def check_values(self):

        i = 0

        conflicts = 0

        while i < len(self.lines):

            l = self.lines[i].strip()

            m = set_regex.match(l)

            if m:

                key = m.group('key').strip()

                val = m.group('value').strip()

            else:

                m = unset_regex.match(l)

                if m:

                    key = m.group('key').strip()

                    val = None

                else:

                    i += 1

                    continue

            if self.configs.has_key(key):

                print "conflicting definition for %s at line %d" % (key, i+1)

                print "    previous definition at line %d" % (self.configs[key][0])

                print "    line %d:  %s = %s" % (self.configs[key][0], key, self.configs[key][1])

                print "    line %d:  %s = %s" % (i+1, key, val)

                conflicts += 1

            else:

                self.configs[key] = (i, val)

            i += 1

        return conflicts

if __name__ == "__main__":

    total = 0

    for f in sys.argv[1:]:

        c = Config(f)

        conflicts = c.check_values()

        if conflicts:

            print "%d conflicts found" % conflicts

            total += conflicts

    sys.exit(total)