start

#!/usr/bin/env python2
# -*- coding: ISO-8859-1 -*-
#
#   Copyright (C) 2003 by  Frank Lübeck  and   Max Neunhöffer
#
'''Start the OKUSON server and show logfile line until service is started.'''

import sys,os,time

homedir = os.path.abspath(sys.path[0])
os.environ["OKUSONHOME"] = homedir

# We perform a few sanity checks and give appropriate messages:
logdir = os.path.join(homedir,'log')
if not(os.path.exists(logdir)):
    try:
        os.mkdir(logdir)
    except:
        print "Error: "+logdir+' directory cannot be created.'
        print 'Aborting.'
        sys.exit(0)
if not(os.path.isdir(logdir)):
    print 'Error: '+logdir+' must be a directory.'
    print 'Aborting.'
    sys.exit(0)
logfile = os.path.join(homedir,'log/server.log')
if not(os.path.exists(logfile)) or not(os.path.isfile(logfile)):
    try:
        file(logfile,"w").close()
    except:
        print 'Error: '+logfile+' must be writable.'
        print 'Aborting.'
        sys.exit(0)

pid = os.fork()
if pid == 0:
    time.sleep(0.1)   # Let the parent get hold of the log file
    server = os.path.join(homedir,"server/Server.py")
    os.execl(server,server)

try:
    f = file(logfile,"r")
except:
    print "Cannot find log file log/server.log."
    sys.exit(0)

f.seek(0,2)     # seek to end of file
p = f.tell()

ok = 0
while 1:
    f.seek(0,2)
    np = f.tell()
    if np > p:
        f.seek(p)
        s = f.readlines()
        p = f.tell()
        for l in s:
            if l[:29] == 'Error:  Cannot start service!':
                sys.stdout.write(l)
                sys.exit(1)
            elif ok:
                sys.exit(0)
            elif l[-27:] == 'Ready to start service ...\n':
                sys.stdout.write(l)
                ok = 1
                s = s+f.readlines()
                if l == s[-1]:
                    sys.exit(0)
            elif l == 'Aborting.\n':
                sys.stdout.write(l)
                sys.exit(0)
            else:
                sys.stdout.write(l)
    time.sleep(0.5)