/usr/lib/bup/cmd/bup-cat-file is in bup 0.29-3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | #!/usr/bin/python2.7
import re, stat, sys
from bup import options, git, vfs
from bup.helpers import chunkyreader, handle_ctrl_c, log, saved_errors
optspec = """
bup cat-file [--meta|--bupm] /branch/revision/[path]
--
meta print the target's metadata entry (decoded then reencoded) to stdout
bupm print the target directory's .bupm file directly to stdout
"""
handle_ctrl_c()
o = options.Options(optspec)
(opt, flags, extra) = o.parse(sys.argv[1:])
git.check_repo_or_die()
top = vfs.RefList(None)
if not extra:
o.fatal('must specify a target')
if len(extra) > 1:
o.fatal('only one target file allowed')
if opt.bupm and opt.meta:
o.fatal('--meta and --bupm are incompatible')
target = extra[0]
if not re.match(r'/*[^/]+/[^/]+', target):
o.fatal("path %r doesn't include a branch and revision" % target)
try:
n = top.lresolve(target)
except vfs.NodeError as e:
o.fatal(e)
if isinstance(n, vfs.FakeSymlink):
# Source is actually /foo/what, i.e. a top-level commit
# like /foo/latest, which is a symlink to ../.commit/SHA.
# So dereference it.
target = n.dereference()
if opt.bupm:
if not stat.S_ISDIR(n.mode):
o.fatal('%r is not a directory' % target)
mfile = n.metadata_file() # VFS file -- cannot close().
if mfile:
meta_stream = mfile.open()
sys.stdout.write(meta_stream.read())
elif opt.meta:
sys.stdout.write(n.metadata().encode())
else:
if stat.S_ISREG(n.mode):
for b in chunkyreader(n.open()):
sys.stdout.write(b)
else:
o.fatal('%r is not a plain file' % target)
if saved_errors:
log('warning: %d errors encountered\n' % len(saved_errors))
sys.exit(1)
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