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mongodb/site_scons/site_tools/gziptool.py

53 lines
1.8 KiB
Python

# Copyright 2020 MongoDB Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
import SCons
import gzip
import shutil
def GZipAction(target, source, env, **kw):
dst_gzip = gzip.GzipFile(str(target[0]), "wb")
with open(str(source[0]), "rb") as src_file:
shutil.copyfileobj(src_file, dst_gzip)
dst_gzip.close()
def generate(env, **kwargs):
env["BUILDERS"]["__GZIPTOOL"] = SCons.Builder.Builder(
action=SCons.Action.Action(GZipAction, "$GZIPTOOL_COMSTR")
)
env["GZIPTOOL_COMSTR"] = kwargs.get(
"GZIPTOOL_COMSTR", "Compressing $TARGET with gzip"
)
def GZipTool(env, target, source, **kwargs):
result = env.__GZIPTOOL(target=target, source=source, **kwargs)
env.AlwaysBuild(result)
return result
env.AddMethod(GZipTool, "GZip")
def exists(env):
return True