tools/mkbiarch.py | 152 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 152 insertions(+)
New commits: commit 6c4847542a42b03ae60f78c51c0bb589ff4b25a1 Author: Richard Shaw <[email protected]> Date: Sat Sep 11 21:44:17 2010 -0500 A new experimental script for creating live images for both i686 and x86_64. This won't be used by any existing stuff, so shouldn't cause problems. Signed-off-by: Bruno Wolff III <[email protected]> diff --git a/tools/mkbiarch.py b/tools/mkbiarch.py new file mode 100644 index 0000000..71fd54a --- /dev/null +++ b/tools/mkbiarch.py @@ -0,0 +1,152 @@ +#!/usr/bin/env python + +__author__ = "Jasper Hartline" +__credits__ = "" +__license__ = "GPL?" +__version__ = "Alpha" +__description__ = "Attempts to create a 32/64 bit combination live Fedora image." + +import os +import sys +import shutil +import parted +import subprocess +import tempfile +import math + +from optparse import OptionParser + +def main(): + + def cleanup(): + pass + + + def mount(src, dst, options=None): + if os.path.exists(src): # Is src the lodev device? + if not os.path.exists(dst): + os.makedir(dst) + if options: # None is the same as Null so you can test for existence instead. + args = ("/bin/mount", options, src, dst) + else: + args = ("/bin/mount", src, dst) + + rc = subprocess.call(args) + return rc + else: # Let's make sure only one return statement get's triggered. + return False # Might as well return something useful so we can test for failure. + + + def umount(src): + if os.path.exists(src): + args = ("/bin/umount", src) + rc = subprocess.call(args) + return rc + else: + return False + + + def copy(src, dst): + if os.path.exists(src): + shutil.copy(src, dst) + return True + else: + return False + + + def move(src, dst): + if os.path.exists(src): + shutil.mopve(src, dst) + return True + else: + return False + + + def losetup(src, dst, offset=None): + if os.path.exists(src) and os.path.exists(dst): + if offset: + args = ("/sbin/losetup", "-o", offset, src, dst) + else: + args = ("/sbin/losetup", src, dst) + + rc = subprocess.call(args) + return rc + else: + return False + + + def null(): + fd = open("/dev/null", "w") + return fd + + def lo(): + args = ("/sbin/losetup", "--find") + rc = subprocess.call(args, stdout=open(null())).communicate()[0].rstrip() + return rc + + + def mkimage(bs, count): + tmp = tempfile.mkstemp() + image = tmp[1] + args = ("/bin/dd", + "if=/dev/zero", + "of=%s" % image, + "bs=%s" % bs, + "count=%s" % count) + rc = subprocess.call(args) + return image + + + def size(ent): + size = os.path.getsize(ent) + if size >= 0: + return os.path.getsize(ent) + else: + print "Something is wrong, %s has no size." % ent + return False + + + def blocks(block_size, size): + # Round up to nearest block + # Make sure floating math, not integer math or we don't get remainders. + # Turn back into an integer for return statement. + return int(math.ceil(size / float(block_size))) + + + def setup(x86, x64, multi): + # Reworked the logic a bit. + block_size = 2048 # Should this be a global constant instead? + sz = size(x86) + size(x64) + count = blocks(block_size, sz) + + multi = mkimage(str(blsz), count) + losetup(multi, lo()) + + + def parse(x86, x64, multi): + for file in x86, x64, multi: # Do we expect that multi exists yet? + if os.path.exists(file): # Should we test for existance or isfile? + pass + else: + parser.error("One of the images does not exist.") + setup(x86, x64, multi) + + # Generate parser and fill with options. + usage = "usage: %prog [options] <32bit image> <64bit image> <biarch image>" + version = "%prog " + __version__ + parser = OptionParser(usage=usage, description=__description__, version=version) + parser.add_option("--test", action="store_true", default=False, + dest="test", help="Doesn't do anything yet.") + (options, args) = parser.parse_args() + if len(args) != 3: + parser.error("You must specify all three arguments.") + sys.exit(0) + + try: # Any reason this would fail? + parse(args[0], args[1], args[2]) + except: + parser.error("Something failed. Better luck next time!") + sys.exit(1) + +if __name__ == "__main__": + sys.exit(main()) \ No newline at end of file -- livecd mailing list [email protected] https://admin.fedoraproject.org/mailman/listinfo/livecd
