# This progam is used to automatically version
# label contents.
#
# Create the directory stucture specified by 'labelpath' 
# first before running script for the first time. 
#
# Gerry Thompson Python Class Perforce Software 2002
# Version 1.0
# This imports p4s.py module.

import marshal, os, string, p4s
            
p4path = 'p4'                          # Path to p4 executable
labelpath = '//depot/versions/labels/' # Path to label files in depot
admin = 'gerry+label@perforce.com'     # My 'From' address for email
to =    'gerry@perforce.com'           # My email address

p4 = p4path  

def checklabel(alabel):
    oneline = os.popen(p4 + ' -s files ' + labelpath + alabel, 'r').readline()
    check = string.split(oneline, )
    if len(check) == 0:
        print 'An error has occured in p4l.py'
    else:
        if check[0] == 'error:': # The label name is a new label name to be versioned.
            os.popen(p4 + ' label '+ alabel ,'r')
            os.popen(p4 + ' add ' + labelpath + alabel)
        else:
            os.popen(p4 + ' sync ' + labelpath + alabel)
            os.popen(p4 + ' edit ' + labelpath + alabel)
            # The label already exits.
           
def makefile(labelname):
    checklabel(labelname)
    newline = []
    for aline in os.popen(p4 + ' files //...@'+labelname, 'r').readlines():
        if aline[0] != '#':
                if aline[0] != '\n':
                    newline.append(aline)
    alist = os.popen(p4 + ' -G fstat ' + labelpath + labelname, 'rb')
    dict = marshal.load(alist)
    path = dict['clientFile']
    open(path, 'w').writelines(newline)
    p4s.tryit(admin, to)

def getlabel(aname):
    makefile(aname)