diff options
Diffstat (limited to 'minimify')
-rwxr-xr-x | minimify | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/minimify b/minimify new file mode 100755 index 0000000..1c05b47 --- /dev/null +++ b/minimify @@ -0,0 +1,67 @@ +#!/usr/bin/python +# +# minimify -- compress file to smallest size +# Copyright (C) 2009 Lars Wirzenius +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + + +import multiprocessing +import optparse +import os +import subprocess +import tempfile + + +COMPRESSORS = ( + ('gzip', '.gz'), + ('bzip2', '.bz2'), + ('lzma', '.lzma'), +) + + +def parse_args(): + parser = optparse.OptionParser() + options, filenames = parser.parse_args() + return options, filenames + + +def run_compressor(t): + compressor, filename, suffix, options = t + input_f = file(filename) + fd, name = tempfile.mkstemp(dir=os.path.dirname(filename)) + p = subprocess.Popen([compressor], stdin=input_f, stdout=fd) + p.communicate('') + os.close(fd) + if p.returncode: + raise Exception('Compression program %s failed' % p.returncode) + os.rename(name, filename + suffix) + + +def compress(filename, options): + pool = multiprocessing.Pool() + pool.map(run_compressor, + [(compressor, filename, suffix, options) + for compressor, suffix in COMPRESSORS]) + + +def main(): + options, filenames = parse_args() + for filename in filenames: + compress(filename, options) + + + +if __name__ == "__main__": + main() |