client.py
author Chris H-C <chutten@mozilla.com>
Mon, 04 Jul 2016 11:16:05 -0400
changeset 312997 df28918fe2361f0b54ca9ce4773a29c4c0675d06
parent 176448 2c0cad37a4faceb63721b440f60ae8c80f688c6d
permissions -rwxr-xr-x
bug 1218576 - Support remote accumulation via JS histograms. r=gfritzsche The JS histograms, too, need to dispatch their accumulations from child to parent. JSHistograms_Add now only supports histograms that are in gHistogramsMap or that were created in the parent process. After bug 1288745, maybe we'll be able to change this to be less convoluted. MozReview-Commit-ID: 3qTH89YKbGP

#!/usr/bin/python
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.


LIBFFI_DIRS = (('js/ctypes/libffi', 'libffi'),)
HG_EXCLUSIONS = ['.hg', '.hgignore', '.hgtags']

CVSROOT_LIBFFI = ':pserver:anoncvs@sources.redhat.com:/cvs/libffi'

import os
import sys
import datetime
import shutil
import glob
from optparse import OptionParser
from subprocess import check_call

topsrcdir = os.path.dirname(__file__)
if topsrcdir == '':
    topsrcdir = '.'

def check_call_noisy(cmd, *args, **kwargs):
    print "Executing command:", cmd
    check_call(cmd, *args, **kwargs)

def do_hg_pull(dir, repository, hg):
    fulldir = os.path.join(topsrcdir, dir)
    # clone if the dir doesn't exist, pull if it does
    if not os.path.exists(fulldir):
        check_call_noisy([hg, 'clone', repository, fulldir])
    else:
        cmd = [hg, 'pull', '-u', '-R', fulldir]
        if repository is not None:
            cmd.append(repository)
        check_call_noisy(cmd)
    check_call([hg, 'parent', '-R', fulldir,
                '--template=Updated to revision {node}.\n'])

def do_hg_replace(dir, repository, tag, exclusions, hg):
    """
        Replace the contents of dir with the contents of repository, except for
        files matching exclusions.
    """
    fulldir = os.path.join(topsrcdir, dir)
    if os.path.exists(fulldir):
        shutil.rmtree(fulldir)

    assert not os.path.exists(fulldir)
    check_call_noisy([hg, 'clone', '-u', tag, repository, fulldir])

    for thing in exclusions:
        for excluded in glob.iglob(os.path.join(fulldir, thing)):
            if os.path.isdir(excluded):
                shutil.rmtree(excluded)
            else:
                os.remove(excluded)

def do_cvs_export(modules, tag, cvsroot, cvs):
    """Check out a CVS directory without CVS metadata, using "export"
    modules is a list of directories to check out and the corresponding
    cvs module, e.g. (('js/ctypes/libffi', 'libffi'),)
    """
    for module_tuple in modules:
        module = module_tuple[0]
        cvs_module = module_tuple[1]
        fullpath = os.path.join(topsrcdir, module)
        if os.path.exists(fullpath):
            print "Removing '%s'" % fullpath
            shutil.rmtree(fullpath)

        (parent, leaf) = os.path.split(module)
        print "CVS export begin: " + datetime.datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S UTC")
        check_call_noisy([cvs, '-d', cvsroot,
                          'export', '-r', tag, '-d', leaf, cvs_module],
                         cwd=os.path.join(topsrcdir, parent))
        print "CVS export end: " + datetime.datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S UTC")

def toggle_trailing_blank_line(depname):
  """If the trailing line is empty, then we'll delete it.
  Otherwise we'll add a blank line."""
  lines = open(depname, "r").readlines()
  if not lines:
      print >>sys.stderr, "unexpected short file"
      return

  if not lines[-1].strip():
      # trailing line is blank, removing it
      open(depname, "wb").writelines(lines[:-1])
  else:
      # adding blank line
      open(depname, "ab").write("\n")

def get_trailing_blank_line_state(depname):
  lines = open(depname, "r").readlines()
  if not lines:
      print >>sys.stderr, "unexpected short file"
      return "no blank line"

  if not lines[-1].strip():
      return "has blank line"
  else:
      return "no blank line"

def update_nspr_or_nss(tag, depfile, destination, hgpath):
  print "reverting to HG version of %s to get its blank line state" % depfile
  check_call_noisy([options.hg, 'revert', depfile])
  old_state = get_trailing_blank_line_state(depfile)
  print "old state of %s is: %s" % (depfile, old_state)
  do_hg_replace(destination, hgpath, tag, HG_EXCLUSIONS, options.hg)
  new_state = get_trailing_blank_line_state(depfile)
  print "new state of %s is: %s" % (depfile, new_state)
  if old_state == new_state:
    print "toggling blank line in: ", depfile
    toggle_trailing_blank_line(depfile)
  tag_file = destination + "/TAG-INFO"
  print >>file(tag_file, "w"), tag

o = OptionParser(usage="client.py [options] update_nspr tagname | update_nss tagname | update_libffi tagname")
o.add_option("--skip-mozilla", dest="skip_mozilla",
             action="store_true", default=False,
             help="Obsolete")

o.add_option("--cvs", dest="cvs", default=os.environ.get('CVS', 'cvs'),
             help="The location of the cvs binary")
o.add_option("--cvsroot", dest="cvsroot",
             help="The CVSROOT for libffi (default : %s)" % CVSROOT_LIBFFI)
o.add_option("--hg", dest="hg", default=os.environ.get('HG', 'hg'),
             help="The location of the hg binary")
o.add_option("--repo", dest="repo",
             help="the repo to update from (default: upstream repo)")

try:
    options, args = o.parse_args()
    action = args[0]
except IndexError:
    o.print_help()
    sys.exit(2)

if action in ('checkout', 'co'):
    print >>sys.stderr, "Warning: client.py checkout is obsolete."
    pass
elif action in ('update_nspr'):
    tag, = args[1:]
    depfile = "nsprpub/config/prdepend.h"
    if not options.repo:
        options.repo = 'https://hg.mozilla.org/projects/nspr'
    update_nspr_or_nss(tag, depfile, 'nsprpub', options.repo)
elif action in ('update_nss'):
    tag, = args[1:]
    depfile = "security/nss/coreconf/coreconf.dep"
    if not options.repo:
	    options.repo = 'https://hg.mozilla.org/projects/nss'
    update_nspr_or_nss(tag, depfile, 'security/nss', options.repo)
elif action in ('update_libffi'):
    tag, = args[1:]
    if not options.cvsroot:
        options.cvsroot = CVSROOT_LIBFFI
    do_cvs_export(LIBFFI_DIRS, tag, options.cvsroot, options.cvs)
else:
    o.print_help()
    sys.exit(2)