#!/usr/bin/env python
#
# Leo Milano, 2002
# 
# It recursively does:
#   cvs -n update (to see what needs to be updated)
#   cvs add
#   cvs remove
#   cvs commit
# The recursion is needed to add directory hierarchies
# The recursion ends when there are no more changes to commit
 
#### imports

import os, sys, fileinput

#### variables and constants

HOME            = os.path.abspath(os.environ['HOME'])+'/'
TMP_FILE        = HOME+'.cvs_update_results.txt'
files_to_add    = []
files_to_remove = []
files_to_update = []

#### methods

def query_cvs():
    print '* quering the server ...'
    os.system('cvs -qn update > ' + TMP_FILE )

def parse_results():
    if  os.access(TMP_FILE, os.F_OK):
        for line in fileinput.input(TMP_FILE):
            if line[0] == '?':
               files_to_add.append(line[2:len(line)-1])
            if line[0] == "U":
               files_to_remove.append(line[2:len(line)-1])
            if line[0] == "M":
               files_to_update.append(line[2:len(line)-1])
    else:
        print '* ERROR: could not open temporary file',TMP_FILE
        sys.exit()
    
def commit():
    print '* selecting files to add/remove ...'
    for file in files_to_add:
        os.system('cvs add '+file)
    for file in files_to_remove:
        os.system('cvs remove '+file)
    print '* commiting changes ...'
    os.system('cvs -q commit')
    
def quit():
    try:
        os.remove(TMP_FILE)
    except: 
        show_msg("* Warning: couldn't remove "+TMP_FILE)

    print "* nothing else to commit, bye ..."
    sys.exit()

#### Execution starts here

os.system('./cvs_clean ')    # clean
os.system('cvs -q remove')   # mark removed files
os.system('cvs -q commit')      # commit removals
os.system('./cvs_update')    # bring latest stuff

for i in range(5):           # no more than 5 recursive commits ;-)
    # reset
    files_to_add    = files_to_add    [0:0] 
    files_to_remove = files_to_remove [0:0] # unnecesary now, remove in future
    files_to_update = files_to_update [0:0] 
    #
    print '* starting iteration ',i+1,'...'
    query_cvs()
    parse_results()
    if  len(files_to_add)+len(files_to_remove)+len(files_to_update) == 0: 
        quit()
    commit()