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#!/usr/bin/python
# $Id$
# Update CUPS PPDs for Gutenprint queues.
# Copyright (C) 2002-2003 Roger Leigh (rleigh@debian.org)
# Copyright (C) 2009, 2011 Red Hat, Inc.
#
# 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 2, 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

import getopt
import glob
import os
import re
import stat
import subprocess
import sys

global optargs
global debug
global verbose
global interactive
global quiet
global no_action
global reset_defaults
global version
global micro_version
global use_static_ppd
global file_version

global ppd_dir
global ppd_root_dir
global ppd_base_dir
global ppd_out_dir
global gzext
global updated_ppd_count
global skipped_ppd_count
global failed_ppd_count
global exit_after_parse_args
global languages

global serverdir
global driver_bin
global driver_version
global server_multicat
global server_multicat_initialized

global ppd_files
global languagemappings

def help():
    print """
Usage: %s [OPTION]... [PPD_FILE]...
Update CUPS+Gutenprint PPD files.

  -d flags    Enable debugging
  -h          Display this help text
  -n          No-action.  Don't overwrite any PPD files.
  -q          Quiet mode.  No messages except errors.
  -s ppd_dir  Use ppd_dir as the source PPD directory.
  -p ppd_dir  Update PPD files in ppd_dir.
  -P driver   Use the specified driver binary to generate PPD files.
  -v          Verbose messages.
  -N          Reset options to defaults.
  -o out_dir  Output PPD files to out_dir.
  -r version  Use PPD files for Gutenprint major.minor version.
  -f          Ignore new PPD file safety checks.
  -i          Prompt (interactively) for each PPD file.
  -l language Language choice (Gutenprint 5.1 or below).
              Choices: %s
              Or -loriginal to preserve original language
                 with Gutenprint 5.2 or above
""" % (sys.argv[0],
       reduce (lambda x,y: "%s %s" % (x,y), languages))
    sys.exit (0)

def die_if_not_directory (dir):
    try:
        st = os.stat (dir)
        if not stat.S_ISDIR (st.st_mode):
            os.chdir (dir)
    except OSError, (e, s):
        print "%s: invalid directory: %s" % (dir, s)
        sys.exit (1)

def get_driver_version():
    global server_multicat
    global driver_version

    def run_with_arg (arg):
        try:
            p = subprocess.Popen ([driver_bin, arg],
                                  stdin=file("/dev/null"),
                                  stdout=subprocess.PIPE,
                                  stderr=file("/dev/null", "w"),
                                  shell=False)
            (stdout, stderr) = p.communicate ()
        except OSError:
            return None

        return stdout

    stdout = run_with_arg ("org.gutenprint.extensions")
    if stdout == None:
        return
    for line in stdout.split ("\n"):
        if line == "org.gutenprint.multicat":
            server_multicat = 1
            break

    stdout = run_with_arg ("VERSION")
    if stdout == None:
        return

    driver_version = stdout.strip ()

def parse_options():
    try:
        opts, args = getopt.getopt (sys.argv[1:], "d:hnqs:vNo:p:P:r:ifl:")
    except getopt.GetoptError:
        help ()

    global optargs
    global debug
    global verbose
    global interactive
    global quiet
    global no_action
    global reset_defaults
    global version
    global micro_version
    global use_static_ppd
    global file_version
    global ppd_dir
    global ppd_out_dir
    global ppd_base_dir
    global ppd_root_dir
    global serverdir
    global driver_bin
    global driver_version
    global server_multicat
    global languages
    optargs = dict()
    for opt, optarg in opts:
        optargs[opt[1]] = optarg

    if optargs.has_key ('n'):
        no_action = 1

    if optargs.has_key ('d'):
        try:
            debug = int (optargs['d'])
        except ValueError:
            d = 0

    if optargs.has_key ('v'):
        verbose = 1
        quiet = 0

    if optargs.has_key ('q'):
        verbose = 0
        quiet = 1

    if optargs.has_key ('N'):
        reset_defaults = 1

    if optargs.has_key ('o'):
        opt_o = optargs['o']
        die_if_not_directory (opt_o)
        ppd_out_dir = opt_o

    if optargs.has_key ('r'):
        opt_r = optargs['r']
        if version != opt_r:
            version = opt_r
            if optargs.has_key ('s'):
                opt_s = optargs['s']
                die_if_not_directory (opt_s)
                ppd_base_dir = opt_s
                driver_bin = ""
                server_multicat = 0
                use_static_ppd = "yes"
            else:
                ppd_base_dir = ppd_root_dir + "/gutenprint/" + version
                driver_bin = serverdir + "/driver/gutenprint." + version

            driver_version = ""
            # If user specifies version, we're not going to be able to check
            # for an exact match.
            file_version = '"' + version
            if os.access (driver_bin, os.X_OK):
                get_driver_version ()
                use_static_ppd = "no"
                file_version = "\"%s\"$" % driver_version
            else:
                print "Gutenprint %s does not appear to be installed!" % version
                sys.exit (1)

    if optargs.has_key ('s'):
        opt_s = optargs['s']
        die_if_not_directory (opt_s)
        ppd_base_dir = opt_s
        driver_bin = ""
        server_multicat = 0
        driver_version = ""
        use_static_ppd = "yes"

    if optargs.has_key ('p'):
        opt_p = optargs['p']
        die_if_not_directory (opt_p)
        ppd_dir = opt_p

    if optargs.has_key ('P'):
        opt_P = optargs['P']
        if os.access (opt_P, os.X_OK):
            driver_bin = opt_P
            get_driver_version ()
            use_static_ppd = "no"
        else:
            print "%s: invalid executable" % opt_P

    if optargs.has_key ('h'):
        help ()

    if (optargs.has_key ('l') and
        optargs['l'].lower () != "original" and
        optargs['l'].lower () not in languages):
        print >>sys.stderr, "Unknown language '%s'" % optargs['l']

    if optargs.has_key ('i'):
        interactive = 1

    if exit_after_parse_args:
        sys.exit (0)

    if verbose and driver_version != "":
        print "Updating PPD files from Gutenprint %s" % driver_version

    return args

def update_ppd (ppd_source_filename):
    global ppd_dest_filename
    global ppd_out_dir
    global optargs
    global languagemappings
    global interactive
    global server_multicat
    global no_action
    global quiet, verbose
    global reset_defaults

    ppd_dest_filename = ppd_source_filename
    if ppd_out_dir:
        ppd_dest_filename = "%s/%s" % (ppd_out_dir,
                                       os.path.basename (ppd_dest_filename))

    orig = file (ppd_source_filename)
    orig_metadata = os.fstat (orig.fileno ())
    if debug & 1:
        print "Source Filename: %s" % ppd_source_filename

    filename = ""
    driver = ""
    gutenprintdriver = ""
    locale = ""
    lingo = ""
    region = ""
    valid = 0
    orig_locale = ""
    for line in orig.readlines ():
        line.rstrip ()
        if line.find ("*StpLocale:") != -1:
            match = re.search ("\*StpLocale:\s*\"(.*)\"$", line)
            if match:
                groups = match.groups ()
                if len (groups) >= 1:
                    locale = groups[0]
                    orig_locale = locale
                    valid = 1
        elif line.startswith ("*LanguageVersion"):
            match = re.search ("^\*LanguageVersion:\s*(.*)$", line)
            if match:
                groups = match.groups ()
                if len (groups) >= 1:
                    lingo = groups[0]
        elif line.startswith ("*StpDriverName:"):
            match = re.search ("^\*StpDriverName:\s*\"(.*)\"$", line)
            if match:
                groups = match.groups ()
                if len (groups) >= 1:
                    driver = groups[0]
                    valid = 1
        elif line.find ("*%End of ") != -1 and driver == "":
            match = re.search ("^\*%End of\s*(.*).ppd$", line)
            if match:
                groups = match.groups ()
                if len (groups) >= 1:
                    driver = groups[0]
        elif line.startswith ("*StpPPDLocation:"):
            match = re.search ("^\*StpPPDLocation:\s*\"(.*)\"$", line)
            if match:
                groups = match.groups ()
                if len (groups) >= 1:
                    filename = groups[0]
                    valid = 1
        elif line.startswith ("*%Gutenprint Filename:"):
            valid = 1

        if filename and driver and lingo and locale:
            break

        if not valid and line.startswith ("*OpenUI"):
            break

    if not valid:
        #print >>sys.stderr, ("Skipping %s: not a Gutenprint PPD file" %
        #                     ppd_source_filename)
        return -1

    if (optargs.has_key ('l') and
        optargs['l'] != "" and
        optargs['l'].lower () != "original"):
        locale = optargs['l']
        orig_locale = locale

    if debug & 2:
        print "Gutenprint Filename: %s" % filename
        if optargs.has_key ('l'):
            print "Locale: %s (from -l)" % locale
        else:
            print "Locale: %s" % locale

        print "Language: %s" % lingo
        print "Driver: %s" % driver

    if locale:
        # Split into the language and territory.
        s = locale.split ("_", 1)
        locale = s[0]
        try:
            region = s[1]
        except IndexError:
            region = ""
    else:
        # Split into the language and territory.
        s = lingo.split ("_", 1)
        locale = s[0]
        try:
            region = s[1]
        except IndexError:
            region = ""

        # Convert language into language code.
        locale = languagemappings.get (lingo.lower (), "C")

    if debug & 2:
        print "Base Locale: %s" % locale
        print "Region: %s" % region

    # Read in the new PPD, decompressing it if needed...
    (new_ppd_filename, source_fd) = get_ppd_fh (ppd_source_filename,
                                                filename,
                                                driver,
                                                locale,
                                                region)
    if source_fd == None:
        print "Unable to retrieve PPD file!"
        return 0

    if interactive:
        inp = raw_input ("Update PPD %s from %s [nyq]? " % ppd_source_filename)
        inp = inp.lower ()
        if inp.startswith ("q"):
            if not server_multicat:
                source_fd.close ()

            print "Skipping all..."    
            return -2
        elif not inp.startswith ("y"):
            if not server_multicat:
                source_fd.close ()

            print "Skipping..."
            return -1

    # Extract the default values from the original PPD...

    orig.seek (0)
    (odt, oopt, ores, odef, unused) = get_ppd_data (orig, 1, 0, 1, 1, 0)
    (ndt, nopt, nres, ndef, source_data) = get_ppd_data (source_fd,
                                                         1, 1, 1, 1, 1)
    
    # Close original and temporary files...

    orig.close ()
    if not server_multicat:
        source_fd.close ()

    orig_default_types = odt
    new_default_types = ndt
    defaults = odef
    new_defaults = ndef
    options = nopt
    resolution_map = nres
    old_resolution_map = dict()
    for key, value in resolution_map.iteritems ():
        old_resolution_map[value] = key

    # Store previous language in the PPD file so that -l original works
    # correctly.

    if orig_locale != "":
        lines = source_data.rstrip ().split ("\n")
        source_data = ""
        for line in lines:
            m = re.search ("(\*StpLocale:\s*\")(.*)(\")", line)
            if m:
                groups = m.groups ()
                line = groups[0] + orig_locale + groups[2]

            source_data += line + "\n"

    if debug & 4:
        print "Options (Old->New Default Type):"
        keys = options.keys ()
        keys.sort ()
        for t in keys:
            old_type = orig_default_types.get (t, "(New)")
            new_type = new_default_types.get (t)
            if old_type != new_type:
                out = "  %s (%s -> %s) :  " % (t, old_type, new_type)
            else:
                out = "  %s (%s) :  " % (t, new_type)

            dft = defaults.get ("Default%s" % t)
            for opt in options.get (t, []):
                if dft != None and dft == opt:
                    out += "*"

                out += "%s " % opt

            print out

        if len (resolution_map.keys ()) > 0:
            print "Resolution Map:"
            keys = resolution_map.keys ()
            keys.sort ()
            for key in keys:
                print "   %s: %s" % (key, resolution_map[key])

        if len (old_resolution_map.keys ()) > 0:
            print "Old Resolution Map:"
            keys = old_resolution_map.keys ()
            keys.sort ()
            for key in keys:
                print "   %s: %s" % (key, old_resolution_map[key])

        print "Non-UI Defaults:"
        keys = defaults.keys ()
        keys.sort ()
        for key in keys:
            xkey = key
            if xkey.startswith ("Default"):
                xkey = xkey[7:]
            if not options.has_key (xkey):
                print "  %s: %s" % (key, defaults[key])

        print "Default Types of dropped options:"
        keys = orig_default_types.keys ()
        keys.sort ()
        for t in keys:
            if not options.has_key (t):
                print "  %s: %s" % (t, orig_default_types[t])

    if no_action:
        if not quiet or verbose:
            if ppd_dest_filename == ppd_source_filename:
                print "Would update %s using %s" % (ppd_source_filename,
                                                    new_ppd_filename)
            else:
                print "Would update %s to %s using %s" % (ppd_source_filename,
                                                          ppd_dest_filename,
                                                          new_ppd_filename)

        return 0

    if not reset_defaults:
        # Update source buffer with old defaults...

        # Loop through each default in turn.
        keys = defaults.keys ()
        keys.sort ()
        for default_option in keys:
            default_option_value = defaults[default_option]
            option = default_option
            if option.startswith ("Default"):
                # Strip off `Default'
                option = option[7:]

            # Check method is valid
            orig_method = orig_default_types.get (option)
            new_method = new_default_types.get (option)
            new_default = new_defaults.get (default_option)
            if (orig_method == None or new_method == None or
                orig_method != new_method):
                continue

            if (new_default != None and
                default_option_value == new_default):
                if verbose:
                    print "%s: Preserve *%s (%s)" % (ppd_source_filename,
                                                     default_option,
                                                     default_option_value)

                continue

            if new_method == "PickOne":
                next_default = False

                # Check the old setting is valid
                for opt in options.get (option, []):
                    def_option = default_option_value
                    odef_option = def_option
                    if (option == "Resolution" and
                        old_resolution_map.has_key (def_option)):
                        if debug & 4:
                            print ("Intermapping old resolution %s to %s" %
                                   def_option, old_resolution_map[def_option])

                        def_option = old_resolution_map[def_option]

                    dopts = [def_option]
                    if def_option != odef_option:
                        dopts.append (odef_option)

                    for dopt in dopts:
                        valid = False
                        if dopt == opt:
                            valid = True
                        elif (option == "Resolution" and
                              resolution_map.has_key (dopt)):
                            dopt = resolution_map[dopt]
                            if dopt == opt:
                                valid = True

                        if valid:
                            # Valid option

                            # Set the option in the new PPD
                            lines = source_data.rstrip ().split ("\n")
                            source_data = ""
                            attr = "*%s" % default_option
                            for line in lines:
                                if line.startswith (attr):
                                    line = "%s:%s" % (attr, dopt)

                                source_data += line + "\n"

                            if verbose:
                                print "%s: Set *%s to %s" % (ppd_source_filename,
                                                             default_option,
                                                             dopt)

                            next_default = True
                            break
                    if next_default:
                        break

                if next_default:
                    continue

                print ("Warning: %s: Invalid option: *%s: %s.  Using default "
                       "setting %s." % (ppd_source_filename, default_option,
                                        defaults[default_option],
                                        new_defaults[default_option]))
                continue

            print ("Warning: %s: PPD OpenUI method %s not understood." %
                   (ppd_source_filename, new_default_types[default_option]))

    # Write new PPD...
    tmpnew = "%s.new" % ppd_dest_filename
    try:
        newppd = file (tmpnew, "w")
    except IOError, (e, s):
        print "Can't create %s: %s" % (tmpnew, s)
        return 0

    newppd.writelines (source_data)
    try:
        newppd.close ()
    except IOError, (e, s):
        print "Can't write to %s: %s" % (tmpnew, s)
        return 0

    chcon = subprocess.Popen (["chcon", "--reference=%s" % ppd_dest_filename,
                               tmpnew], shell=False,
                              stdin=file("/dev/null"),
                              stdout=file("/dev/null", "w"),
                              stderr=subprocess.STDOUT)
    chcon.communicate ()

    try:
        os.rename (tmpnew, ppd_dest_filename)
    except OSError, (e, s):
        print "Can't rename %s to %s: %s" % (tmpnew, ppd_dest_filename, s)
        try:
            os.unlink (tmpnew)
        except OSError:
            pass

        return 0

    try:
        os.chown (ppd_dest_filename,
                  orig_metadata.st_uid,
                  orig_metadata.st_gid)
    except OSError:
        pass

    try:
        os.chmod (ppd_dest_filename,
                  orig_metadata.st_mode & 0777)
    except OSError:
        pass

    if not quiet or verbose:
        if ppd_dest_filename == ppd_source_filename:
            print "Updated %s using %s" % (ppd_source_filename,
                                           new_ppd_filename)
        else:
            print "Updated %s to %s using %s" % (ppd_source_filename,
                                                 ppd_dest_filename,
                                                 new_ppd_filename)

    # All done!
    return 1

def get_ppd_data (fh, types, opts, resolutions, defaults, data):
    options_map = dict()
    defaults_map = dict()
    resolution_map = dict()
    default_types = dict()
    cur_opt = ""
    optionlist = []
    source_data = ""

    if reset_defaults:
        types = 0
        opts = 0
        resolutions = 0
        defaults = 0

    if resolutions or types or opts or defaults or data:
        while True:
            line = fh.readline ()
            if line == '':
                break
            if line == "*%*%EOFEOF\n":
                break
            source_data += line
            line = line.strip ()

            if (types or opts) and line.startswith ("*OpenUI"):
                m = re.search ("^\*OpenUI\s\*(\w+).*:\s(\w+)",
                               line)
                if m:
                    groups = m.groups ()
                    key = groups[0]
                    value = groups[1]
                    default_types[key] = value
                    cur_opt = key
            elif opts and line.startswith ("*CloseUI"):
                if cur_opt != "":
                    options_map[cur_opt] = optionlist
                    cur_opt = ""

                optionlist = []
            elif opts and line.startswith ("*%s" % cur_opt):
                m = re.search ("^\*%s\s*(\w+)[\/:]" % cur_opt, line)
                if m:
                    groups = m.groups()
                    if len (groups) >= 1:
                        value = m.groups ()[0]
                        optionlist.append (value)
            elif resolutions and line.startswith ("*StpResolutionMap:"):
                s = line.split (None, 3)
                if len (s) == 3:
                    new = s[1]
                    old = s[2]
                    resolution_map[old] = new
            elif defaults and line.startswith ("*Default"):
                m = re.search ("^\*(\w+):\s*(\w+)", line)
                if m:
                    groups = m.groups ()
                    key = groups[0]
                    value = groups[1]
                    defaults_map[key] = value

    return (default_types, options_map, resolution_map,
            defaults_map, source_data)

def get_ppd_fh (ppd_source_filename, filename, driver, locale, region):
    global use_static_ppd
    global driver_version
    global optargs
    global driver_bin
    global debug
    global server_multicat, server_multicat_initialized
    global gzext

    if use_static_ppd == "no" and driver_version != "":
        if re.search (".*/([^/]*)(.sim)(.ppd)?(.gz)?$", filename):
            simplified = "simple"
        else:
            simplified = "expert"

        opt_r = optargs.get ('r')
        if opt_r:
            try:
                opt_r = float (opt_r)
            except ValueError:
                opt_r = None

        url_list = []
        if (((opt_r != None and opt_r < 5.2) or
             (optargs.has_key ('l') and optargs['l'] != "")) and
            locale != ""):
            if region:
                url_list.append ("gutenprint.%s://%s/%s/%s_%s" %
                                 version, driver, simplified, locale, region)
            url_list.append ("gutenprint.%s://%s/%s/%s" %
                             version, driver, simplified, locale)

        url_list.append ("gutenprint.%s://%s/%s" % (version, driver,
                                                    simplified))
        for url in url_list:
            new_ppd_filename = url
            if debug & 8:
                if server_multicat:
                    cat = ""
                else:
                    cat = "%s cat " % driver_bin

                print ("Trying %s%s for %s, %s, %s, %s" %
                       (cat, url, driver, simplified, locale, region))

            if server_multicat:
                try:
                    if not server_multicat_initialized:
                        mc_proc = subprocess.Popen ([driver_bin,
                                                     "org.gutenprint.multicat"],
                                                    shell=False,
                                                    stdin=subprocess.PIPE,
                                                    stdout=subprocess.PIPE,
                                                    stderr=file("/dev/null",
                                                                "w"))
                        server_multicat_initialized = mc_proc

                    print >>server_multicat_initialized.stdin, "%s" % url
                    server_multicat_initialized.stdin.flush ()
                    return (new_ppd_filename,
                            server_multicat_initialized.stdout)
                except OSError:
                    pass

            try:
                proc = subprocess.Popen ([driver_bin, "cat", url],
                                         shell=False,
                                         stdin=file("/dev/null"),
                                         stdout=subprocess.PIPE,
                                         stderr=file("/dev/null", "w"))
                return (new_ppd_filename, proc.stdout)
            except OSError:
                pass

        # Otherwise fall through and try to find a static PPD

    # Search for a PPD matching our criteria...

    new_ppd_filename = find_ppd (filename, driver, locale, region)
    if not new_ppd_filename:
        # There wasn't a valid source PPD file, so give up.
        print >>sys.stderr, ("%s: no valid candidate for replacement.  "
                             "Skipping" % ppd_source_filename)
        print >>sys.stderr, ("%s: please upgrade this PPD manually" %
                             ppd_source_filename)
        return ("", None)

    if debug & 1:
        print "Candidate PPD: %s" % new_ppd_filename

    suffix = "\\" + gzext # Add '\' so the regexp matches the '.'
    if new_ppd_filename.endswith (".gz"):
        # Decompress input buffer
        try:
            proc = subprocess.Popen (['gunzip', '-c', new_ppd_filename],
                                     shell=False,
                                     stdin=file("/dev/null"),
                                     stdout=subprocess.PIPE,
                                     stderr=file("/dev/null", "w"))
        except OSError, (e, s):
            print "can't open for decompression: %s" % s
            sys.exit (1)

        return (new_ppd_filename, proc.stdout)
    else:
        return (new_ppd_filename, file (new_ppd_filename))

def find_ppd (gutenprintfilename, drivername, lang, region):
    global file_version
    global optargs
    global ppd_base_dir
    global ppd_root_dir
    global debug

    key = '^\\*FileVersion:[ 	]*' + file_version
    match = re.search (".*/([^/]+\.[0-9]+\.[0-9]+)(\.sim)?(\.ppd)?(\.gz)?$",
                       gutenprintfilename)
    if not match:
        return None

    stored_name = match.groups ()[0]
    if re.search (".*/([^/]*)(\.sim)(\.ppd)?(\.gz)?$", gutenprintfilename):
        simplified = ".sim"
    else:
        simplified = ""

    stored_dir = os.path.dirname (gutenprintfilename)

    current_best_file = ""
    current_best_time = 0
    if optargs.has_key ('s'):
        basedirs = [optargs['s']]
    else:
        basedirs = [ppd_base_dir, stored_dir, ppd_root_dir]

    lingos = []
    if region != "":
        lingos.append ("%s_%s/" % (lang, region))

    lingos.append ("%s/" % lang)
    if lang != "C":
        lingos.append ("C/")

    lingos.append ("en/")
    lingos.append ("")
    lingos.append ("Global/")
    bases = ["stp-%s.%s%s" % (drivername, version, simplified),
             "%s.%s%s" % (drivername, version, simplified)]
    if stored_name not in bases:
        bases.append (stored_name)

    bases.append (drivername)

    # All possible candidates, in order of usefulness and gzippedness
    for lingo in lingos:
        for suffix in (".ppd%s" % gzext,
                       ".ppd"):
            for base in bases:
                for basedir in basedirs:
                    if basedir == "" or base == "":
                        continue

                    fn = "%s/%s%s%s" % (basedir, lingo, base, suffix)
                    if debug & 8:
                        print ("Trying %s for %s, %s, %s" %
                               (fn, gutenprintfilename, lang, region))

                    try:
                        st = os.stat (fn)
                    except OSError:
                        continue

                    if (optargs.has_key ('f') or
                        (stat.S_ISREG (st.st_mode) and
                         st.st_uid == 0)):
                        # Check that the file is a valid Gutenprint PPD file
                        # of the correct version.
                        if fn.endswith (".gz"):
                            cmdline = "gunzip -c '%s' | grep '%s'" % (fn, key)
                        else:
                            cmdline = "cat '%s' | grep '%s'" % (fn, key)

                        try:
                            p = subprocess.Popen (cmdline,
                                                  stdin=file("/dev/null"),
                                                  stdout=subprocess.PIPE,
                                                  stderr=file("/dev/null", "w"))
                        except OSError:
                            new_file_version = ""
                        else:
                            (stdin, stderr) = p.communicate ()
                            new_file_version = stdin.rstrip ()

                        if new_file_version != "":
                            if debug & 8:
                                print ("   Format valid: time %s best %s "
                                       "prev %s cur %s!" %
                                       (st.st_mtime, current_best_time,
                                        current_best_file, fn))

                            if st.st_mtime > current_best_time:
                                current_best_time = st.st_mtime
                                current_best_file = fn
                                if debug & 8:
                                    print >>sys.stderr, ("***current_best_file "
                                                         " is %s" % fn)
                        elif debug & 8:
                            print "   Format invalid"
                    else:
                        if (not stat.S_ISDIR (st.st_mode) and
                            not fn.endswith ("/")):
                            print >>sys.stderr, ("%s: not a regular file, "
                                                 "or insecure ownership and "
                                                 "permissions.  Skipped" % fn)

    if current_best_file:
        return current_best_file

    # Yikes!  Cannot find a valid PPD file!
    return None

debug=0
verbose=0
interactive=0
quiet=0
no_action=0
reset_defaults=0
version="@GUTENPRINT_MAJOR_VERSION@.@GUTENPRINT_MINOR_VERSION@"
micro_version="@GUTENPRINT_VERSION@"
use_static_ppd="@BUILD_CUPS_PPDS@"
file_version='"@VERSION@"$'

ppd_dir = "@cups_conf_serverroot@/ppd"
ppd_root_dir = "@cups_conf_datadir@/model";
ppd_base_dir = ppd_root_dir + "/gutenprint/" + version
ppd_out_dir = ""
gzext = ".gz"
updated_ppd_count = 0
skipped_ppd_count = 0
failed_ppd_count = 0
exit_after_parse_args = 0
languages=["Global", "C"] + "@ALL_LINGUAS@".split (' ')

serverdir = "@cups_conf_serverbin@"
driver_bin = serverdir + "/driver/gutenprint." + version
driver_version = ""
server_multicat = 0
server_multicat_initialized = 0

if os.access (driver_bin, os.X_OK):
    get_driver_version ()

ppd_files = []
languagemappings = { "chinese": "cn",
                     "danish": "da",
                     "dutch": "nl",
                     "english": "en",
                     "finnish": "fi",
                     "french": "fr",
                     "german": "de",
                     "greek": "el",
                     "hungarian": "hu",
                     "italian": "it",
                     "japanese": "jp",
                     "norwegian": "no",
                     "polish": "pl",
                     "portuguese": "pt",
                     "russian": "ru",
                     "slovak": "sk",
                     "spanish": "es",
                     "swedish": "sv",
                     "turkish": "tr" }

# Check command-line options...
args = parse_options()

# Set a secure umask...
os.umask (0177)


# Find all in-use Gutenprint PPD files...
# For case-insensitive filesystems, use only one of .ppd and .PPD
# (bug 1929738)

for f in args:
    if (os.access (f, os.F_OK) and
        (f.lower ().endswith (".ppd") or
         f.find ("/") != -1)):
        ppd_files.append (f)
    elif os.access ("%s/%s" % (ppd_dir, f), os.F_OK):
        ppd_files.append ("%s/%s" % (ppd_dir, f))
    elif os.access ("%s/%s.ppd" % (ppd_dir, f), os.F_OK):
        ppd_files.append ("%s/%s.ppd" % (ppd_dir, f))
    elif os.access ("%s/%s.PPD" % (ppd_dir, f), os.F_OK):
        ppd_files.append ("%s/%s.PPD" % (ppd_dir, f))
    else:
        print >>sys.stderr, ("Cannot find file %s/%s, %s/%s.ppd, or %s/%s.PPD" %
                             ppd_dir, f, ppd_dir, f, ppd_dir, f)

if len (args) == 0:
    ppdtmp = glob.glob ("%s/*.ppd" % ppd_dir)
    ppdtmp += glob.glob ("%s/*.PPD" % ppd_dir)
    ppd_map = dict()
    for each in ppdtmp:
        ppd_map[each] = 1

    for f in ppdtmp:
        if f.endswith (".PPD"):
            g = f[:-4] + ".ppd"
            if not ppd_map.has_key (g):
                ppd_files.append (f)
        else:
            ppd_files.append (f)

# Update each of the Gutenprint PPDs, where possible...

for ppd_file in ppd_files:
    status = update_ppd (ppd_file)
    if status == -2:
        break
    elif status == 0:
        failed_ppd_count += 1
    elif status == 1:
        updated_ppd_count += 1
    elif status == -1:
        skipped_ppd_count += 1

if (not quiet) or verbose:
    if len (ppd_files) == 0:
        print "No Gutenprint PPD files to update."
    elif updated_ppd_count > 0:
        plural = ""
        if updated_ppd_count != 1:
            plural = "s"

        print "Updated %d PPD file%s" % (updated_ppd_count, plural)
        if ((not optargs.has_key ('o')) or
            optargs['o'] != ""):
            print "Restart cupsd for the changes to take effect."
    else:
        if failed_ppd_count > 0:
            print "Failed to update any PPD files"
        else:
            print "Did not update any PPD files"

sys.exit (failed_ppd_count > 0)