| """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 |