#!/usr/bin/python

# Copyright (C) 2007,2012 Jelmer Vernooij <jelmer@samba.org>

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

import optparse
import os
import re

parser = optparse.OptionParser("source_dir")

(opts, args) = parser.parse_args()

if len(args) == 1:
    topdir = args[0]
else:
    topdir = "."

# Reading links from manpage

curdir = os.getcwd()
doc = {}

os.chdir("smbdotconf");

f = os.popen("xsltproc --xinclude --param smb.context ALL generate-context.xsl parameters.all.xml", "r")
try:
    for l in f.readlines():
        m = re.match('<samba:parameter .*?name="([^"]*?)"', l)
        if m:
            name = m.group(1).replace(" ", "")
            doc[name] = False
finally:
    f.close()

os.chdir(curdir)

# Reading entries from source code

f = open(os.path.join(topdir, "lib/param/param_table.c"), "r")

# burn through the preceding lines
while True:
    l = f.readline()
    if l.startswith("static struct parm_struct parm_table"):
        break

for l in f.readlines():
    if re.match("^\s*\}\;\s*$", l):
        break
    # pull in the param names only
    if re.match(".*P_SEPARATOR.*", l):
        continue
    m = re.match("\s*\.label\s*=\s*\"(.*)\".*", l)
    if not m:
        continue

    name = m.group(1)
    name = name.replace(" ", "")

    if name.lower() in doc:
        doc[name.lower()] = True
    else:
      print "'%s' is not documented" % name
f.close()

# Try to find missing references
for key in doc.keys():
     if doc[key] == "FOUND":
         print "'$_' is documented but is not a configuration option"