jsoncpp/scons-tools/targz.py
Sam Clegg 63860617b3 Add copyright information to .py files
This change adds explicit copyright information too python
files files.  The copyright year used in each case is the
date of the first git commit of each file.

The goal is to allow jsoncpp to be integrated into the
chromium source tree which requires license information in
each source file.

fixes #234
2015-04-09 18:05:47 -07:00

88 lines
3.2 KiB
Python

# Copyright 2007 Baptiste Lepilleur
# Distributed under MIT license, or public domain if desired and
# recognized in your jurisdiction.
# See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
"""tarball
Tool-specific initialization for tarball.
"""
## Commands to tackle a command based implementation:
##to unpack on the fly...
##gunzip < FILE.tar.gz | tar xvf -
##to pack on the fly...
##tar cvf - FILE-LIST | gzip -c > FILE.tar.gz
import os.path
import SCons.Builder
import SCons.Node.FS
import SCons.Util
try:
import gzip
import tarfile
internal_targz = 1
except ImportError:
internal_targz = 0
TARGZ_DEFAULT_COMPRESSION_LEVEL = 9
if internal_targz:
def targz(target, source, env):
def archive_name(path):
path = os.path.normpath(os.path.abspath(path))
common_path = os.path.commonprefix((base_dir, path))
archive_name = path[len(common_path):]
return archive_name
def visit(tar, dirname, names):
for name in names:
path = os.path.join(dirname, name)
if os.path.isfile(path):
tar.add(path, archive_name(path))
compression = env.get('TARGZ_COMPRESSION_LEVEL',TARGZ_DEFAULT_COMPRESSION_LEVEL)
base_dir = os.path.normpath(env.get('TARGZ_BASEDIR', env.Dir('.')).abspath)
target_path = str(target[0])
fileobj = gzip.GzipFile(target_path, 'wb', compression)
tar = tarfile.TarFile(os.path.splitext(target_path)[0], 'w', fileobj)
for source in source:
source_path = str(source)
if source.isdir():
os.path.walk(source_path, visit, tar)
else:
tar.add(source_path, archive_name(source_path)) # filename, arcname
tar.close()
targzAction = SCons.Action.Action(targz, varlist=['TARGZ_COMPRESSION_LEVEL','TARGZ_BASEDIR'])
def makeBuilder(emitter = None):
return SCons.Builder.Builder(action = SCons.Action.Action('$TARGZ_COM', '$TARGZ_COMSTR'),
source_factory = SCons.Node.FS.Entry,
source_scanner = SCons.Defaults.DirScanner,
suffix = '$TARGZ_SUFFIX',
multi = 1)
TarGzBuilder = makeBuilder()
def generate(env):
"""Add Builders and construction variables for zip to an Environment.
The following environnement variables may be set:
TARGZ_COMPRESSION_LEVEL: integer, [0-9]. 0: no compression, 9: best compression (same as gzip compression level).
TARGZ_BASEDIR: base-directory used to determine archive name (this allow archive name to be relative
to something other than top-dir).
"""
env['BUILDERS']['TarGz'] = TarGzBuilder
env['TARGZ_COM'] = targzAction
env['TARGZ_COMPRESSION_LEVEL'] = TARGZ_DEFAULT_COMPRESSION_LEVEL # range 0-9
env['TARGZ_SUFFIX'] = '.tar.gz'
env['TARGZ_BASEDIR'] = env.Dir('.') # Sources archive name are made relative to that directory.
else:
def generate(env):
pass
def exists(env):
return internal_targz