root / pykota / trunk / bin / dumpykota @ 3288

#! /usr/bin/env python
# -*- coding: UTF-8 -*-
#
# PyKota : Print Quotas for CUPS
#
# (c) 2003, 2004, 2005, 2006, 2007, 2008 Jerome Alet <alet@librelogiciel.com>
# 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/>.
#
# $Id$
#
#

import sys

from pykota.errors import PyKotaCommandLineError
from pykota.tool import crashed, N_
from pykota.dumper import DumPyKota

__doc__ = N_("""dumpykota v%(__version__)s (c) %(__years__)s %(__author__)s

Dumps PyKota database's content.

command line usage :

  dumpykota [options] [filterexpr]

options :

  -v | --version       Prints dumpykota's version number then exits.
  -h | --help          Prints this message then exits.
  
  -d | --data type     Dumps 'type' datas. Allowed types are :
                       
                         - history : dumps the jobs history.
                         - users : dumps users.
                         - groups : dumps user groups.
                         - printers : dump printers.
                         - upquotas : dump user quotas.
                         - gpquotas : dump user groups quotas.
                         - payments : dumps user payments.
                         - pmembers : dumps printer groups members.
                         - umembers : dumps user groups members.
                         - billingcodes : dumps billing codes.
                         - all : dumps all PyKota datas. The output format
                                 is always XML in this case.
                         
                       NB : the -d | --data command line option   
                       is MANDATORY.
  
  -f | --format fmt    Dumps datas in the 'fmt' format. When not specified,
                       the format is to dump datas in the csv format (comma
                       separated values). All data dumped is between double
                       quotes. Allowed formats are :
                       
                         - csv : separate datas with commas
                         - ssv : separate datas with semicolons
                         - tsv : separate datas with tabs
                         - xml : dump data as XML 
                         - cups : dump datas in CUPS' page_log format :
                                  ONLY AVAILABLE WITH --data history
                         
  -o | --output fname  All datas will be dumped to the file instead of
                       to the standard output. The special '-' filename
                       is the default value and means stdout.
                       WARNING : existing files are truncated !

  -O | --orderby exp   Change the ordering or result. 'exp' is a comma
                       separated list of ordering statements, for example
                       '--orderby +username,-printername'. Not all expression
                       values are meaningful, so using this command line 
                       switch is not recommanded if you don't know the 
                       exact layout of PyKota's database schema.
                       
  -s | --sum           Summarize the selected datas.
                           ONLY AVAILABLE WITH --data history or payments

  Use the filter expressions to extract only parts of the 
  datas. Allowed filters are of the form :
                
         key=value
                         
  Allowed keys for now are :  
                       
         username       User's name
         groupname      Users group's name
         printername    Printer's name
         pgroupname     Printers group's name
         hostname       Client's hostname
         jobid          Job's Id
         billingcode    Job's billing code
         start          Job's date of printing
         end            Job's date of printing
         
  Dates formatting with 'start' and 'end' filter keys :
  
    YYYY : year boundaries
    YYYYMM : month boundaries
    YYYYMMDD : day boundaries
    YYYYMMDDhh : hour boundaries
    YYYYMMDDhhmm : minute boundaries
    YYYYMMDDhhmmss : second boundaries
    yesterday[+-NbDays] : yesterday more or less N days (e.g. : yesterday-15)
    today[+-NbDays] : today more or less N days (e.g. : today-15)
    tomorrow[+-NbDays] : tomorrow more or less N days (e.g. : tomorrow-15)
    now[+-NbDays] : now more or less N days (e.g. now-15)

  'now' and 'today' are not exactly the same since today represents the first
  or last second of the day depending on if it's used in a start= or end=
  date expression. The utility to be able to specify dates in the future is
  a question which remains to be answered :-)
  
  Contrary to other PyKota management tools, wildcard characters are not 
  expanded, so you can't use them.
  
  NB : not all keys are allowed for each data type, so the result may be 
  empty if you use a key not available for a particular data type.
  
Examples :

  $ dumpykota --data history --format csv >myfile.csv
  
  This dumps the history in a comma separated values file, for possible
  use in a spreadsheet.
  
  $ dumpykota --data users --format xml -o users.xml
  
  Dumps all users datas to the users.xml file.
  
  $ dumpykota --data history printername=HP2100 username=jerome
  
  Dumps the job history for user jerome on printer HP2100 only.
  
  $ dumpykota --data history start=200503 end=20050730234615
  
  Dumps all jobs printed between March 1st 2005 at midnight and
  July 30th 2005 at 23 hours 46 minutes and 15 secondes included.
""")
        
if __name__ == "__main__" : 
    retcode = 0
    try :
        defaults = { \
                     "format" : "csv", \
                     "output" : "-", \
                   }
        short_options = "vhd:f:o:sO:"
        long_options = ["help", "version", "data=", "format=", "output=", "sum", "orderby="]
        
        # Initializes the command line tool
        dumper = DumPyKota(doc=__doc__)
        dumper.deferredInit()
        
        # parse and checks the command line
        (options, args) = dumper.parseCommandline(sys.argv[1:], short_options, long_options, allownothing=1)
        
        # sets long options
        options["help"] = options["h"] or options["help"]
        options["version"] = options["v"] or options["version"]
        options["data"] = options["d"] or options["data"]
        options["format"] = options["f"] or options["format"] or defaults["format"]
        options["output"] = options["o"] or options["output"] or defaults["output"]
        options["sum"] = options["s"] or options["sum"]
        options["orderby"] = options["O"] or options["orderby"]
        
        if options["help"] :
            dumper.display_usage_and_quit()
        elif options["version"] :
            dumper.display_version_and_quit()
        elif options["data"] is None :    
            raise PyKotaCommandLineError, _("The -d | --data command line option is mandatory, see help.")
        else :
            retcode = dumper.main(args, options)
    except KeyboardInterrupt :        
        sys.stderr.write("\nInterrupted with Ctrl+C !\n")
        retcode = -3
    except PyKotaCommandLineError, msg :    
        sys.stderr.write("%s : %s\n" % (sys.argv[0], msg))
        retcode = -2
    except SystemExit :        
        pass
    except :
        try :
            dumper.crashed("dumpykota failed")
        except :    
            crashed("dumpykota failed")
        retcode = -1

    try :
        dumper.storage.close()
    except (TypeError, NameError, AttributeError) :    
        pass
        
    sys.exit(retcode)