2 from __future__ import absolute_import
6 from bup import options, git, vfs
7 from bup.compat import argv_bytes
8 from bup.helpers import chunkyreader, log, saved_errors
9 from bup.io import byte_stream
10 from bup.repo import LocalRepo
13 bup cat-file [--meta|--bupm] /branch/revision/[path]
15 meta print the target's metadata entry (decoded then reencoded) to stdout
16 bupm print the target directory's .bupm file directly to stdout
20 o = options.Options(optspec)
21 opt, flags, extra = o.parse_bytes(argv[1:])
23 git.check_repo_or_die()
26 o.fatal('must specify a target')
28 o.fatal('only one target file allowed')
29 if opt.bupm and opt.meta:
30 o.fatal('--meta and --bupm are incompatible')
32 target = argv_bytes(extra[0])
34 if not re.match(br'/*[^/]+/[^/]+', target):
35 o.fatal("path %r doesn't include a branch and revision" % target)
37 with LocalRepo() as repo:
38 resolved = vfs.resolve(repo, target, follow=False)
39 leaf_name, leaf_item = resolved[-1]
41 log('error: cannot access %r in %r\n'
42 % (b'/'.join(name for name, item in resolved), target))
45 mode = vfs.item_mode(leaf_item)
48 out = byte_stream(sys.stdout)
51 if not stat.S_ISDIR(mode):
52 o.fatal('%r is not a directory' % target)
53 _, bupm_oid = vfs.tree_data_and_bupm(repo, leaf_item.oid)
55 with vfs.tree_data_reader(repo, bupm_oid) as meta_stream:
56 out.write(meta_stream.read())
58 augmented = vfs.augment_item_meta(repo, leaf_item, include_size=True)
59 out.write(augmented.meta.encode())
61 if stat.S_ISREG(mode):
62 with vfs.fopen(repo, leaf_item) as f:
63 for b in chunkyreader(f):
66 o.fatal('%r is not a plain file' % target)
69 log('warning: %d errors encountered\n' % len(saved_errors))