#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# $Id: make_tag.py 1221 2016-05-26 11:00:07Z ehrlicher $
# $HeadURL: svn://192.168.133.21/admin/rpmbuild/make_tag.py $
# $Author: ehrlicher $
# Created by Christian Ehrlicher, SLSE, 20013-02-19
#

import datetime
import getopt
import os
import subprocess
import sys

# helper functions
def verbose():
    verb = os.getenv( "EMERGE_VERBOSE" )
    if ( not verb == None and verb.isdigit() and int(verb) > 0 ):
        return int( verb )
    else:
        return 0

def debug( message ):
    if verbose() > 0:
        print "emerge debug:", message
    return True

def die( message ):
    print >> sys.stderr, "emerge fatal error: %s" % message
    sys.exit( 1 )

def system( cmdstring, file = None ):
  debug( "Executing '%s'" % cmdstring )
  out = subprocess.PIPE
  if file != None:
    out = file
  p = subprocess.Popen( cmdstring, shell=True, stdout=out, stderr=sys.stderr )
  ret = p.wait()
  if ( ret != 0 ):
    die( "Error executing %s (%s)" % (cmdstring, ret) )
  ret = ""
  if file == None:
    ret = p.stdout.read().strip()
  return ret

def getSvn_Release( svn_dir ):
  try:
    old_lang = os.environ['LANG']
  except:
    old_lang = None
  os.putenv("LANG", "en_US")
  cmd = "svn info %s | grep \"Last Changed Rev\"" % svn_dir
  rel = system( cmd ).split(':')[1].strip()
  if old_lang:
    os.putenv("LANG", old_lang)
  return rel

def usage():
  print >> sys.stdout, "Usage: %s [-r repository] [-s source] -p <project_name> -v <version>" % sys.argv[0]
  print >> sys.stdout, " e.g.: %s -r TDS -s ctc -p tes_uae_ctc -v 4.3" % sys.argv[0]
  print >> sys.stdout, " e.g.: %s -r AVS -s trunk -p tes_uae_ctc -v 4.3" % sys.argv[0]
  

	
def main():
  svn_server = "slssvn"

  try:
    ip = socket.gethostbyname(socket.gethostname())
    if ip.startswith('172.'):
      svn_server = "ECCORAS01"
  except:
    print >> sys.stdout, "Using %s as svn server" % svn_server

  try:
    opts, args = getopt.getopt(sys.argv[1:], "p:r:s:v:",
                              ["project_name=", "source=", "repository=", "version=",])
  except getopt.GetoptError, err:
    print >> sys.stderr, err
    usage()
    sys.exit(2)

  version = None
  project_name = None
  svn_repo = "TDS"
  svn_src = None
  for o, a in opts:
    if o in ("-p", "--project_name"):
      project_name = a
    if o in ("-r", "--repository"):
      svn_repo = a
    if o in ("-s", "--source"):
      svn_src = a
    if o in ("-v", "--version"):
      version = a.split('.')
      try:
        version_maj = version[0]
        version_min = version[1]
	version = "%s.%s" % ( version_maj, version_min )
      except:
        die( "Invalid version format (maj.min): %s" % a )
        
  if not version or not project_name:
    usage()
    die("Version or project name not defined")

  if not svn_src:
    svn_src = project_name[project_name.rfind('_') + 1:]
  project = project_name[:project_name.rfind('_'):]
  subproject_src = svn_src
  subproject_dst = project_name[project_name.rfind('_') + 1:]

  svn_branch = "svn://%s/%s/branches/%s/stable/%s" % ( svn_server, svn_repo, project, subproject_src )
  full_version = "%s-%s" % ( version, getSvn_Release( svn_branch ) )
  svn_tag = "svn://%s/%s/tags/%s/%s/%s_%s-%s" % ( svn_server, svn_repo, project, subproject_dst, project, subproject_dst, full_version )

  print "Project:        %s" % project
  print "SubProject SRC: %s" % subproject_src
  print "SubProject DST: %s" % subproject_dst
  print "SVN Path:       %s" % svn_branch
  print "SVN Tag:        %s" % svn_tag

  filename = "svn-commit-msg-branch-%s" % project_name
  f = open( filename, 'w' )
  f.write( "Tagged TES UAE %s rev %s on %s\n" % ( project_name.upper(), full_version, datetime.date.today().isoformat() ) )
  f.close()

  system("svn cp %s %s -F %s" % ( svn_branch, svn_tag, filename ) )
  
  os.remove( filename )

if __name__ == "__main__":
  main()