From 2e2e720a2a9f55af6d9e18f43d6c78e66c573c1a Mon Sep 17 00:00:00 2001 From: Todd Gamblin Date: Sat, 25 Oct 2014 14:40:17 -0700 Subject: Add spack md5 command for simple checksumming. --- lib/spack/spack/cmd/md5.py | 52 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 lib/spack/spack/cmd/md5.py diff --git a/lib/spack/spack/cmd/md5.py b/lib/spack/spack/cmd/md5.py new file mode 100644 index 0000000000..496835c64b --- /dev/null +++ b/lib/spack/spack/cmd/md5.py @@ -0,0 +1,52 @@ +############################################################################## +# Copyright (c) 2013-2014, Lawrence Livermore National Security, LLC. +# Produced at the Lawrence Livermore National Laboratory. +# +# This file is part of Spack. +# Written by Todd Gamblin, tgamblin@llnl.gov, All rights reserved. +# LLNL-CODE-647188 +# +# For details, see https://scalability-llnl.github.io/spack +# Please also see the LICENSE file for our notice and the LGPL. +# +# 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) version 2.1 dated February 1999. +# +# 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 terms and +# conditions of the GNU General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with this program; if not, write to the Free Software Foundation, +# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +############################################################################## +import os +import hashlib +from external import argparse + +import llnl.util.tty as tty +from llnl.util.filesystem import * + +import spack.util.crypto + +description = "Calculate md5 checksums for files." + +def setup_parser(subparser): + setup_parser.parser = subparser + subparser.add_argument('files', nargs=argparse.REMAINDER, + help="Files to checksum.") + +def md5(parser, args): + if not args.files: + setup_parser.parser.print_help() + + for f in args.files: + if not os.path.isfile(f): + tty.die("Not a file: %s" % f) + if not can_access(f): + tty.die("Cannot read file: %s" % f) + + checksum = spack.util.crypto.checksum(hashlib.md5, f) + print "%s %s" % (checksum, f) -- cgit v1.2.3-70-g09d2