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gzip.py

# Copyright (c) 2009, Abraca Team
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

import SCons

def generate(env):
    env['GZIP'] = env.get('GZIP', 'gzip')
    env['GZIPCOM'] = '$GZIP -c $SOURCE > $TARGET'
    env['HAVE_GZIP'] = env.Detect(env['GZIP'])

    gzip_action = SCons.Action.Action(
        '$GZIPCOM',
        '$GZIPCOMSTR'
    )
    gzip_builder = SCons.Builder.Builder(
        action = [
            gzip_action
        ],
        suffix = '.gz'
    )
    env['BUILDERS']['GZip'] = gzip_builder

def exists(env):
    return env.Detect(env.get('GZIP', 'gzip'))

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