Script to import the current cvs head into mercurial
git-svn-id: svn://10.0.0.236/trunk@224232 18797224-902f-48f8-a5cc-f745e15eee43
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aravind%mozilla.com
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mozilla/tools/cvs2hg-import.py
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228
mozilla/tools/cvs2hg-import.py
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#!/usr/bin/python
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"""A script which will import from Mozilla CVS into a Mercurial
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repository. It pulls NSPR and NSS from the appropriate release tags
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currently in use on the Mozilla trunk."""
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from sys import exit
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from os import environ, makedirs, listdir, rename, unlink
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from os.path import isdir
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from shutil import rmtree
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from tempfile import mkdtemp
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try:
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from subprocess import check_call
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except ImportError:
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# Python 2.4 doesn't have check_call, so we reimplement it
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from subprocess import call
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def check_call(*popenargs, **kwargs):
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retcode = call(*popenargs, **kwargs)
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if retcode:
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cmd = kwargs.get("args")
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if cmd is None:
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cmd = popenargs[0]
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raise Exception("Command '%s' returned non-zero exit status %d" % (cmd, retcode))
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mozilla_files = (
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"Makefile.in",
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"LICENSE",
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"LEGAL",
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"README.txt",
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"accessible",
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"aclocal.m4",
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"allmakefiles.sh",
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"browser",
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"build",
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"caps",
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"chrome",
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"config",
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"configure.in",
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"client.mk",
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"content",
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"db",
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"docshell",
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"dom",
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"editor",
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"embedding",
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"extensions/Makefile.in",
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"extensions/access-builtin",
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"extensions/auth",
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"extensions/canvas3d",
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"extensions/cookie",
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"extensions/gnomevfs",
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"extensions/inspector",
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"extensions/java",
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"extensions/jssh",
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"extensions/layout-debug",
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"extensions/metrics",
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"extensions/negotiateauth",
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"extensions/permissions",
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"extensions/pref",
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"extensions/python",
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"extensions/reporter",
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"extensions/spellcheck",
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"extensions/universalchardet",
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"gfx",
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"intl",
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"ipc",
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"jpeg",
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"js",
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"layout",
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"modules",
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"netwerk",
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"other-licenses/7zstub",
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"other-licenses/atk-1.0",
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"other-licenses/branding/firefox",
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"other-licenses/bsdiff",
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"other-licenses/ia2",
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"parser",
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"plugin",
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"profile",
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"rdf",
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"security/manager",
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"storage",
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"sun-java",
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"testing",
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"toolkit",
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"tools/build",
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"tools/codesighs",
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"tools/cross-commit",
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"tools/elf-dynstr-gc",
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"tools/footprint",
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"tools/httptester",
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"tools/jprof",
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"tools/l10n",
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"tools/leaky",
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"tools/memory",
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"tools/page-loader",
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"tools/patcher",
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"tools/performance",
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"tools/rb",
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"tools/release",
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"tools/relic",
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"tools/reorder",
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"tools/test-harness",
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"tools/tests",
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"tools/testserver",
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"tools/testy",
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"tools/trace-malloc",
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"tools/update-packaging",
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"tools/uuiddeps",
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"uriloader",
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"view",
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"webshell",
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"widget",
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"xpcom",
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"xpfe",
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"xpinstall",
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"xulrunner"
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)
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nspr_files = ("nsprpub",)
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nspr_tag = "NSPRPUB_PRE_4_2_CLIENT_BRANCH"
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nss_files = (
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"dbm",
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"security/nss",
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"security/coreconf",
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"security/dbm"
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)
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nss_tag = "NSS_3_11_5_RTM"
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def ensurevalue(val, envvar, default = None):
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if val:
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return val
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if envvar in environ:
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return environ[envvar]
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if default:
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return default
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raise ValueError("No %s found." % envvar)
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def rmfileortree(path):
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print "Removing %s" % path
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if isdir(path):
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rmtree(path)
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else:
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unlink(path)
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def CheckoutDirs(directory, branch, cvsroot, dirlist):
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arglist = ['cvs', '-Q', '-d', cvsroot, 'co', '-P', '-N']
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if branch is not None:
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arglist.extend(['-r', branch])
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arglist.extend(["mozilla/%s" % dir for dir in dirlist])
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check_call(arglist, cwd=directory)
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def ImportMozillaCVS(directory, cvsroot=None, hg=None, tempdir=None):
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cvsroot = ensurevalue(cvsroot, "CVSROOT", ":pserver:anonymous@cvs-mirror.mozilla.org:/cvsroot")
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tempd = mkdtemp("cvsimport", dir=tempdir)
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try:
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CheckoutDirs(tempd, nspr_tag, cvsroot, nspr_files)
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CheckoutDirs(tempd, nss_tag, cvsroot, nss_files)
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CheckoutDirs(tempd, None, cvsroot, mozilla_files)
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# Remove everything in the hg repository except for the .hg directory
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for f in listdir(directory):
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if f != ".hg" and f != ".hgignore":
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rmfileortree("%s/%s" % (directory, f))
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# Move everything from the mozilla/ directory to the hg repo
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for f in listdir("%s/mozilla" % tempd):
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source = "%s/mozilla/%s" % (tempd, f)
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dest = "%s/%s" % (directory, f)
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print "Moving %s to %s" % (source, dest)
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rename(source, dest)
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check_call(['hg', '-q', 'add'], cwd=directory)
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check_call(['hg', '-q', 'remove', '--after'], cwd=directory)
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check_call(['hg', '-q', 'commit', '-m', 'Automated import from CVS.'],
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cwd=directory)
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finally:
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rmtree(tempd)
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def InitRepo(directory, hg=None):
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hg = ensurevalue(hg, "HG", "hg")
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check_call([hg, 'init', directory])
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ignoref = open("%s/.hgignore" % directory, "wb")
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print >>ignoref, "CVS\n\\.cvsignore"
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ignoref.close()
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check_call([hg, 'add', '.hgignore'], cwd=directory)
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check_call([hg, 'commit', '-m', 'Set up .hgignore to ignore CVS files.'],
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cwd=directory)
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if __name__ == '__main__':
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from optparse import OptionParser
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usage = "usage: %prog [options] directory"
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p = OptionParser()
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p.add_option("--cvsroot", dest="cvsroot",
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help="Specify the CVSROOT for checkout.")
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p.add_option("--hg", dest="hg",
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help="Path to the hg executable.")
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p.add_option("--initrepo", dest="initrepo", action="store_true",
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help="Initialize a repository for import.")
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p.add_option("--tempdir", dest="tempdir",
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help="Use a specific directory for temporary files.")
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(options, args) = p.parse_args()
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if len(args) != 1:
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p.print_help()
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exit(1)
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if options.initrepo:
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print "Initializing hg repository '%s'." % args[0]
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InitRepo(args[0], options.hg)
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print "Initialization successful."
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else:
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print "Importing CVS to repository '%s'." % args[0]
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ImportMozillaCVS(args[0], options.hg, options.cvsroot, options.tempdir)
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print "Import successful."
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