| Derek Sollenberger | 2eb3b4d | 2016-01-11 14:41:40 -0500 | [diff] [blame^] | 1 | """tarball |
| 2 | |
| 3 | Tool-specific initialization for tarball. |
| 4 | |
| 5 | """ |
| 6 | |
| 7 | ## Commands to tackle a command based implementation: |
| 8 | ##to unpack on the fly... |
| 9 | ##gunzip < FILE.tar.gz | tar xvf - |
| 10 | ##to pack on the fly... |
| 11 | ##tar cvf - FILE-LIST | gzip -c > FILE.tar.gz |
| 12 | |
| 13 | import os.path |
| 14 | |
| 15 | import SCons.Builder |
| 16 | import SCons.Node.FS |
| 17 | import SCons.Util |
| 18 | |
| 19 | try: |
| 20 | import gzip |
| 21 | import tarfile |
| 22 | internal_targz = 1 |
| 23 | except ImportError: |
| 24 | internal_targz = 0 |
| 25 | |
| 26 | TARGZ_DEFAULT_COMPRESSION_LEVEL = 9 |
| 27 | |
| 28 | if internal_targz: |
| 29 | def targz(target, source, env): |
| 30 | def archive_name( path ): |
| 31 | path = os.path.normpath( os.path.abspath( path ) ) |
| 32 | common_path = os.path.commonprefix( (base_dir, path) ) |
| 33 | archive_name = path[len(common_path):] |
| 34 | return archive_name |
| 35 | |
| 36 | def visit(tar, dirname, names): |
| 37 | for name in names: |
| 38 | path = os.path.join(dirname, name) |
| 39 | if os.path.isfile(path): |
| 40 | tar.add(path, archive_name(path) ) |
| 41 | compression = env.get('TARGZ_COMPRESSION_LEVEL',TARGZ_DEFAULT_COMPRESSION_LEVEL) |
| 42 | base_dir = os.path.normpath( env.get('TARGZ_BASEDIR', env.Dir('.')).abspath ) |
| 43 | target_path = str(target[0]) |
| 44 | fileobj = gzip.GzipFile( target_path, 'wb', compression ) |
| 45 | tar = tarfile.TarFile(os.path.splitext(target_path)[0], 'w', fileobj) |
| 46 | for source in source: |
| 47 | source_path = str(source) |
| 48 | if source.isdir(): |
| 49 | os.path.walk(source_path, visit, tar) |
| 50 | else: |
| 51 | tar.add(source_path, archive_name(source_path) ) # filename, arcname |
| 52 | tar.close() |
| 53 | |
| 54 | targzAction = SCons.Action.Action(targz, varlist=['TARGZ_COMPRESSION_LEVEL','TARGZ_BASEDIR']) |
| 55 | |
| 56 | def makeBuilder( emitter = None ): |
| 57 | return SCons.Builder.Builder(action = SCons.Action.Action('$TARGZ_COM', '$TARGZ_COMSTR'), |
| 58 | source_factory = SCons.Node.FS.Entry, |
| 59 | source_scanner = SCons.Defaults.DirScanner, |
| 60 | suffix = '$TARGZ_SUFFIX', |
| 61 | multi = 1) |
| 62 | TarGzBuilder = makeBuilder() |
| 63 | |
| 64 | def generate(env): |
| 65 | """Add Builders and construction variables for zip to an Environment. |
| 66 | The following environnement variables may be set: |
| 67 | TARGZ_COMPRESSION_LEVEL: integer, [0-9]. 0: no compression, 9: best compression (same as gzip compression level). |
| 68 | TARGZ_BASEDIR: base-directory used to determine archive name (this allow archive name to be relative |
| 69 | to something other than top-dir). |
| 70 | """ |
| 71 | env['BUILDERS']['TarGz'] = TarGzBuilder |
| 72 | env['TARGZ_COM'] = targzAction |
| 73 | env['TARGZ_COMPRESSION_LEVEL'] = TARGZ_DEFAULT_COMPRESSION_LEVEL # range 0-9 |
| 74 | env['TARGZ_SUFFIX'] = '.tar.gz' |
| 75 | env['TARGZ_BASEDIR'] = env.Dir('.') # Sources archive name are made relative to that directory. |
| 76 | else: |
| 77 | def generate(env): |
| 78 | pass |
| 79 | |
| 80 | |
| 81 | def exists(env): |
| 82 | return internal_targz |