build-tz.py

#!/usr/bin/env python2

# tz.js - Library for working with timezones in JavaScript

# Written in 2013 by L. David Baron <dbaron@dbaron.org>

# To the extent possible under law, the author(s) have dedicated all
# copyright and related and neighboring rights to this software to the
# public domain worldwide.  This software is distributed without any
# warranty.
#
# You should have received a copy of the CC0 Public Domain Dedication
# along with this software.  If not, see
# <http://creativecommons.org/publicdomain/zero/1.0/>.

# Build the tz database.

from optparse import OptionParser
import os.path
import os
import subprocess

__all__ = [
    "build_tz"
]

def build_tz(destdir, tzcodetar, tzdatatar):
    destdir = os.path.abspath(destdir)
    tzcodetar = os.path.abspath(tzcodetar)
    tzdatatar = os.path.abspath(tzdatatar)

    if not os.path.isdir(destdir):
        raise StandardError("destination not a directory")
    sourcedir = os.path.join(destdir, "source")
    outputdir = os.path.join(destdir, "output")
    if os.path.exists(sourcedir) or os.path.exists(outputdir):
        raise StandardError("destination already exists")

    os.mkdir(sourcedir)
    os.mkdir(outputdir)

    subprocess.check_call(["tar", "xzf", tzcodetar],
                          cwd=sourcedir)
    subprocess.check_call(["tar", "xzf", tzdatatar],
                          cwd=sourcedir)
    subprocess.check_call(["make", "install",
                           "TOPDIR=" + outputdir,
                           "CFLAGS=-DHAVE_GETTEXT=1 -DHAVE_SNPRINTF=1 -DTM_GMTOFF=tm_gmtoff -DTM_ZONE=tm_zone"],
                          cwd=sourcedir)

if __name__ == '__main__':
    op = OptionParser()
    (options, args) = op.parse_args()

    if len(args) == 3:
        build_tz(args[0], args[1], args[2])
    else:
        op.error("expected three arguments (dest directory, tzcode archive, tzdata archive)")