btrfs-progs: remove obsolete tool bcp
This has been superseded by 'cp --reflink'. Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba
parent
848e852884
commit
3feefaf134
159
bcp
159
bcp
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#!/usr/bin/env python
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# Copyright (C) 2007 Oracle. All rights reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public
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# License v2 as published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public
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# License along with this program; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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# Boston, MA 021110-1307, USA.
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#
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import sys, os, stat, fcntl
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from optparse import OptionParser
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def copylink(srcname, dst, filename, statinfo, force_name):
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dstname = os.path.join(dst, force_name or filename)
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if not os.path.exists(dstname):
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link_target = os.readlink(srcname)
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os.symlink(link_target, dstname)
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def copydev(srcname, dst, filename, statinfo, force_name):
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devbits = statinfo.st_mode & (stat.S_IFBLK | stat.S_IFCHR)
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mode = stat.S_IMODE(statinfo.st_mode) | devbits
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dstname = os.path.join(dst, force_name or filename)
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if not os.path.exists(dstname):
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os.mknod(dstname, mode, statinfo.st_rdev)
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def copyfile(srcname, dst, filename, statinfo, force_name):
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written = 0
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dstname = os.path.join(dst, force_name or filename)
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st_mode = statinfo.st_mode
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if stat.S_ISLNK(st_mode):
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copylink(srcname, dst, part, statinfo, None)
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return
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elif stat.S_ISBLK(st_mode) or stat.S_ISCHR(st_mode):
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copydev(srcname, dst, part, statinfo, None)
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return
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elif not stat.S_ISREG(st_mode):
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return
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try:
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os.unlink(dstname)
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except:
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pass
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if options.link:
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os.link(srcname, dstname)
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return
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dstf = file(dstname, 'w')
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srcf = file(srcname, 'r')
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ret = 1
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try:
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if not options.copy:
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ret = fcntl.ioctl(dstf.fileno(), 1074041865, srcf.fileno())
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except:
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pass
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if ret != 0:
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while True:
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buf = srcf.read(256 * 1024)
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if not buf:
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break
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written += len(buf)
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dstf.write(buf)
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os.chmod(dstname, stat.S_IMODE(statinfo.st_mode))
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os.chown(dstname, statinfo.st_uid, statinfo.st_gid)
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usage = "usage: %prog [options]"
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parser = OptionParser(usage=usage)
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parser.add_option("-l", "--link", help="Create hard links", default=False,
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action="store_true")
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parser.add_option("-c", "--copy", help="Copy file bytes (don't cow)",
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default=False, action="store_true")
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(options,args) = parser.parse_args()
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if len(args) < 2:
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sys.stderr.write("source or destination not specified\n")
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sys.exit(1)
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if options.link and options.copy:
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sys.stderr.write("Both -l and -c specified, using copy mode\n")
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options.link = False
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total_args = len(args)
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src_args = total_args - 1
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orig_dst = args[-1]
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if src_args > 1:
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if not os.path.exists(orig_dst):
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os.makedirs(orig_dst)
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if not os.path.isdir(orig_dst):
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sys.stderr.write("Destination %s is not a directory\n" % orig_dst)
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exit(1)
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for srci in xrange(0, src_args):
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src = args[srci]
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if os.path.isfile(src):
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statinfo = os.lstat(src)
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force_name = None
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if src_args == 1:
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if not os.path.isdir(orig_dst):
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force_name = os.path.basename(orig_dst)
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orig_dst = os.path.dirname(orig_dst) or '.'
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copyfile(src, orig_dst, os.path.basename(src), statinfo, force_name)
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continue
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if src_args > 1 or os.path.exists(orig_dst):
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dst = os.path.join(orig_dst, os.path.basename(src))
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else:
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dst = orig_dst
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if not os.path.exists(dst):
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os.makedirs(dst)
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statinfo = os.stat(src)
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os.chmod(dst, stat.S_IMODE(statinfo.st_mode))
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os.chown(dst, statinfo.st_uid, statinfo.st_gid)
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iter = os.walk(src, topdown=True)
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for (dirpath, dirnames, filenames) in iter:
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for x in dirnames:
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srcname = os.path.join(dirpath, x)
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statinfo = os.lstat(srcname)
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part = os.path.relpath(srcname, src)
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if stat.S_ISLNK(statinfo.st_mode):
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copylink(srcname, dst, part, statinfo, None)
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continue
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dst_dir = os.path.join(dst, part)
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if not os.path.exists(dst_dir):
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os.makedirs(dst_dir)
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os.chmod(dst_dir, stat.S_IMODE(statinfo.st_mode))
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os.chown(dst_dir, statinfo.st_uid, statinfo.st_gid)
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for f in filenames:
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srcname = os.path.join(dirpath, f)
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part = os.path.relpath(srcname, src)
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statinfo = os.lstat(srcname)
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copyfile(srcname, dst, part, statinfo, None)
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