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https://github.com/open-source-parsers/jsoncpp.git
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54 lines
2.0 KiB
Python
54 lines
2.0 KiB
Python
import os.path
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import gzip
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import tarfile
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TARGZ_DEFAULT_COMPRESSION_LEVEL = 9
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def make_tarball(tarball_path, sources, base_dir, prefix_dir=''):
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"""Parameters:
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tarball_path: output path of the .tar.gz file
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sources: list of sources to include in the tarball, relative to the current directory
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base_dir: if a source file is in a sub-directory of base_dir, then base_dir is stripped
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from path in the tarball.
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prefix_dir: all files stored in the tarball be sub-directory of prefix_dir. Set to ''
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to make them child of root.
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"""
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base_dir = os.path.normpath( os.path.abspath( base_dir ) )
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def archive_name( path ):
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"""Makes path relative to base_dir."""
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path = os.path.normpath( os.path.abspath( path ) )
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common_path = os.path.commonprefix( (base_dir, path) )
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archive_name = path[len(common_path):]
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if os.path.isabs( archive_name ):
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archive_name = archive_name[1:]
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return os.path.join( prefix_dir, archive_name )
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def visit(tar, dirname, names):
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for name in names:
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path = os.path.join(dirname, name)
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if os.path.isfile(path):
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path_in_tar = archive_name(path)
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tar.add(path, path_in_tar )
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compression = TARGZ_DEFAULT_COMPRESSION_LEVEL
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tar = tarfile.TarFile.gzopen( tarball_path, 'w', compresslevel=compression )
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try:
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for source in sources:
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source_path = source
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if os.path.isdir( source ):
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os.path.walk(source_path, visit, tar)
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else:
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path_in_tar = archive_name(source_path)
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tar.add(source_path, path_in_tar ) # filename, arcname
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finally:
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tar.close()
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def decompress( tarball_path, base_dir ):
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"""Decompress the gzipped tarball into directory base_dir.
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"""
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# !!! This class method is not documented in the online doc
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# nor is bz2open!
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tar = tarfile.TarFile.gzopen(tarball_path, mode='r')
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try:
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tar.extractall( base_dir )
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finally:
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tar.close()
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