client.py

   1 #!/usr/bin/python
   2 # This Source Code Form is subject to the terms of the Mozilla Public
   3 # License, v. 2.0. If a copy of the MPL was not distributed with this
   4 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   5
   6
   7 LIBFFI_DIRS = (('js/ctypes/libffi', 'libffi'),)
   8 WEBIDLPARSER_DIR = 'dom/bindings/parser'
   9 WEBIDLPARSER_REPO = 'https://hg.mozilla.org/users/khuey_mozilla.com/webidl-parser'
  10 HG_EXCLUSIONS = ['.hg', '.hgignore', '.hgtags']
  11 WEBIDLPARSER_EXCLUSIONS = HG_EXCLUSIONS + ['.gitignore', 'ply']
  12
  13 CVSROOT_LIBFFI = ':pserver:anoncvs@sources.redhat.com:/cvs/libffi'
  14
  15 import os
  16 import sys
  17 import datetime
  18 import shutil
  19 import glob
  20 from optparse import OptionParser
  21 from subprocess import check_call
  22
  23 topsrcdir = os.path.dirname(__file__)
  24 if topsrcdir == '':
  25     topsrcdir = '.'
  26
  27 def check_call_noisy(cmd, *args, **kwargs):
  28     print "Executing command:", cmd
  29     check_call(cmd, *args, **kwargs)
  30
  31 def do_hg_pull(dir, repository, hg):
  32     fulldir = os.path.join(topsrcdir, dir)
  33     # clone if the dir doesn't exist, pull if it does
  34     if not os.path.exists(fulldir):
  35         check_call_noisy([hg, 'clone', repository, fulldir])
  36     else:
  37         cmd = [hg, 'pull', '-u', '-R', fulldir]
  38         if repository is not None:
  39             cmd.append(repository)
  40         check_call_noisy(cmd)
  41     check_call([hg, 'parent', '-R', fulldir,
  42                 '--template=Updated to revision {node}.\n'])
  43
  44 def do_hg_replace(dir, repository, tag, exclusions, hg):
  45     """
  46         Replace the contents of dir with the contents of repository, except for
  47         files matching exclusions.
  48     """
  49     fulldir = os.path.join(topsrcdir, dir)
  50     if os.path.exists(fulldir):
  51         shutil.rmtree(fulldir)
  52
  53     assert not os.path.exists(fulldir)
  54     check_call_noisy([hg, 'clone', '-u', tag, repository, fulldir])
  55
  56     for thing in exclusions:
  57         for excluded in glob.iglob(os.path.join(fulldir, thing)):
  58             if os.path.isdir(excluded):
  59                 shutil.rmtree(excluded)
  60             else:
  61                 os.remove(excluded)
  62
  63 def do_cvs_export(modules, tag, cvsroot, cvs):
  64     """Check out a CVS directory without CVS metadata, using "export"
  65     modules is a list of directories to check out and the corresponding
  66     cvs module, e.g. (('js/ctypes/libffi', 'libffi'),)
  67     """
  68     for module_tuple in modules:
  69         module = module_tuple[0]
  70         cvs_module = module_tuple[1]
  71         fullpath = os.path.join(topsrcdir, module)
  72         if os.path.exists(fullpath):
  73             print "Removing '%s'" % fullpath
  74             shutil.rmtree(fullpath)
  75
  76         (parent, leaf) = os.path.split(module)
  77         print "CVS export begin: " + datetime.datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S UTC")
  78         check_call_noisy([cvs, '-d', cvsroot,
  79                           'export', '-r', tag, '-d', leaf, cvs_module],
  80                          cwd=os.path.join(topsrcdir, parent))
  81         print "CVS export end: " + datetime.datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S UTC")
  82
  83 def toggle_trailing_blank_line(depname):
  84   """If the trailing line is empty, then we'll delete it.
  85   Otherwise we'll add a blank line."""
  86   lines = open(depname, "r").readlines()
  87   if not lines:
  88       print >>sys.stderr, "unexpected short file"
  89       return
  90
  91   if not lines[-1].strip():
  92       # trailing line is blank, removing it
  93       open(depname, "wb").writelines(lines[:-1])
  94   else:
  95       # adding blank line
  96       open(depname, "ab").write("\n")
  97
  98 def get_trailing_blank_line_state(depname):
  99   lines = open(depname, "r").readlines()
 100   if not lines:
 101       print >>sys.stderr, "unexpected short file"
 102       return "no blank line"
 103
 104   if not lines[-1].strip():
 105       return "has blank line"
 106   else:
 107       return "no blank line"
 108
 109 def update_nspr_or_nss(tag, depfile, destination, hgpath):
 110   print "reverting to HG version of %s to get its blank line state" % depfile
 111   check_call_noisy([options.hg, 'revert', depfile])
 112   old_state = get_trailing_blank_line_state(depfile)
 113   print "old state of %s is: %s" % (depfile, old_state)
 114   do_hg_replace(destination, hgpath, tag, HG_EXCLUSIONS, options.hg)
 115   new_state = get_trailing_blank_line_state(depfile)
 116   print "new state of %s is: %s" % (depfile, new_state)
 117   if old_state == new_state:
 118     print "toggling blank line in: ", depfile
 119     toggle_trailing_blank_line(depfile)
 120   tag_file = destination + "/TAG-INFO"
 121   print >>file(tag_file, "w"), tag
 122
 123 o = OptionParser(usage="client.py [options] update_nspr tagname | update_nss tagname | update_libffi tagname | update_webidlparser tagname")
 124 o.add_option("--skip-mozilla", dest="skip_mozilla",
 125              action="store_true", default=False,
 126              help="Obsolete")
 127
 128 o.add_option("--cvs", dest="cvs", default=os.environ.get('CVS', 'cvs'),
 129              help="The location of the cvs binary")
 130 o.add_option("--cvsroot", dest="cvsroot",
 131              help="The CVSROOT for libffi (default : %s)" % CVSROOT_LIBFFI)
 132 o.add_option("--hg", dest="hg", default=os.environ.get('HG', 'hg'),
 133              help="The location of the hg binary")
 134
 135 try:
 136     options, args = o.parse_args()
 137     action = args[0]
 138 except IndexError:
 139     o.print_help()
 140     sys.exit(2)
 141
 142 if action in ('checkout', 'co'):
 143     print >>sys.stderr, "Warning: client.py checkout is obsolete."
 144     pass
 145 elif action in ('update_nspr'):
 146     tag, = args[1:]
 147     depfile = "nsprpub/config/prdepend.h"
 148     update_nspr_or_nss(tag, depfile, 'nsprpub', 'https://hg.mozilla.org/projects/nspr')
 149 elif action in ('update_nss'):
 150     tag, = args[1:]
 151     depfile = "security/nss/coreconf/coreconf.dep"
 152     update_nspr_or_nss(tag, depfile, 'security/nss', 'https://hg.mozilla.org/projects/nss')
 153 elif action in ('update_libffi'):
 154     tag, = args[1:]
 155     if not options.cvsroot:
 156         options.cvsroot = CVSROOT_LIBFFI
 157     do_cvs_export(LIBFFI_DIRS, tag, options.cvsroot, options.cvs)
 158 elif action in ('update_webidlparser'):
 159     tag, = args[1:]
 160     do_hg_replace(WEBIDLPARSER_DIR, WEBIDLPARSER_REPO, tag, WEBIDLPARSER_EXCLUSIONS, options.hg)
 161 else:
 162     o.print_help()
 163     sys.exit(2)