git-cms-import-tagset

#!/bin/bash
""":"
python_cmd="python"
python3 -V >/dev/null 2>&1 && python_cmd="python3"
exec ${python_cmd} $0 ${1+"$@"}
"""
from optparse import OptionParser
try:
  from commands import getstatusoutput
except ImportError:
  from subprocess import getstatusoutput

from sys import exit

def format(s, **kwds):
  return s.encode(errors="ignore") % kwds

def die(*out):
  for x in out:
    print (x)
  exit(1)

if __name__ == "__main__":
  parser = OptionParser()
  parser.add_option("-n", "--dry-run", help="Do not do it but just print out the commit", dest="dryRun", action="store_true", default=False)
  parser.add_option("-d", "--dependency", help="Specify tagset dependency", dest="dependencies", default=None)
  parser.add_option("-m", "--merge", help="Do merge", dest="merge", default=False, action="store_true")
  parser.add_option("-s", "--strategy", help="Strategy to be used for the merge", dest="strategy", default="")
  parser.add_option("-X", "--strategy-option", help="Strategy to be used for the merge", dest="strategyOption", default="")
  opts, args = parser.parse_args()
  if not len(args):
    parser.error("Please specify at least one tagset ID")

  if opts.strategy:
    opts.strategy = "-s " + opts.strategy
  if opts.strategyOption:
    opts.strategyOption = "-X " + opts.strategyOption
  if opts.merge:
    opts.merge = "-m"
  else:
    opts.merge = ""
    
  for tagset in args:
    err, out = getstatusoutput("cmstc tagset %s" % tagset)
    pairs = [[y for y in x.split(" ") if y] for x in out.strip().split("\n")]
    print(pairs)
    getstatusoutput("rm -rf $CMSSW_BASE/src")
    for (pkg, tag) in pairs:
      print(pkg, tag)
      err, out = getstatusoutput(format("set -e ; git cms-addpkg %(pkg)s; cd $CMSSW_BASE/src; cvs rdiff -r CMSSW_6_2_0_pre8 -r %(tag)s %(pkg)s | patch -p1",
                                 pkg=pkg,
                                 tag=tag))
      if err:
        die("Error while executing command", out)
      print(out)
    err, out = getstatusoutput(format("set -e ; cd $CMSSW_BASE/src ; git add -A . ; git commit -m \"`cmstc tagsetinfo %(tagset)s | grep -A100 -e'Description:' | grep -v -e '^Description:'`\"", 
                               tagset=tagset))
    if err:
      die("Error while creating commit", out)
    if not opts.dependencies:
      err, out = getstatusoutput(format("set -e ; cd $CMSSW_BASE/src ; git rebase official-cmssw/CMSSW_7_0_X",
                                 tagset=tagset))
    else:
      for dep in opts.dependencies.split(","):
        command = format("set -e ; cd $CMSSW_BASE/src ; git fetch my-cmssw tagset-%(tagset)s:my-cmssw/tagset-%(tagset)s; git rebase %(merge)s %(strategy)s %(strategyOption)s my-cmssw/tagset-%(tagset)s",
                         tagset=dep,
                         strategy=opts.strategy,
                         strategyOption=opts.strategyOption,
                         merge=opts.merge)
        print(command)
        err, out = getstatusoutput(command)
    if err:
      die("Error while rebasing", out)
    print(out)
    if opts.dryRun:
      err, out = getstatusoutput("cd $CMSSW_BASE/src ; git show")
      if err:
        die("Error while doing git show", out)
      print(out)
      exit(0)
    err, out = getstatusoutput(format("cd $CMSSW_BASE/src ; git push my-cmssw -f HEAD:tagset-%s" % tagset))
    if err:
      die("Error while pushing to your repository", out)
    print(out)