-#!/usr/bin/env python
-import sys, stat, time, math
+#!/bin/sh
+"""": # -*-python-*-
+bup_python="$(dirname "$0")/bup-python" || exit $?
+exec "$bup_python" "$0" ${1+"$@"}
+"""
+# end of bup preamble
+
+from __future__ import absolute_import, print_function
+from binascii import hexlify
+from errno import EACCES
+from io import BytesIO
+import os, sys, stat, time, math
+
from bup import hashsplit, git, options, index, client, metadata, hlinkdb
-from bup.helpers import *
+from bup.compat import argv_bytes, environ
from bup.hashsplit import GIT_MODE_TREE, GIT_MODE_FILE, GIT_MODE_SYMLINK
+from bup.helpers import (add_error, grafted_path_components, handle_ctrl_c,
+ hostname, istty2, log, parse_date_or_fatal, parse_num,
+ path_components, progress, qprogress, resolve_parent,
+ saved_errors, stripped_path_components,
+ valid_save_name)
+from bup.io import byte_stream, path_msg
+from bup.pwdgrp import userfullname, username
optspec = """
o = options.Options(optspec)
(opt, flags, extra) = o.parse(sys.argv[1:])
+if opt.indexfile:
+ opt.indexfile = argv_bytes(opt.indexfile)
+if opt.name:
+ opt.name = argv_bytes(opt.name)
+if opt.remote:
+ opt.remote = argv_bytes(opt.remote)
+if opt.strip_path:
+ opt.strip_path = argv_bytes(opt.strip_path)
+
git.check_repo_or_die()
if not (opt.tree or opt.commit or opt.name):
o.fatal("use one or more of -t, -c, -n")
if not extra:
o.fatal("no filenames given")
+extra = [argv_bytes(x) for x in extra]
+
opt.progress = (istty2 and not opt.quiet)
opt.smaller = parse_num(opt.smaller or 0)
if opt.bwlimit:
for (option, parameter) in flags:
if option == "--graft":
- splitted_parameter = parameter.split('=')
+ parameter = argv_bytes(parameter)
+ splitted_parameter = parameter.split(b'=')
if len(splitted_parameter) != 2:
o.fatal("a graft point must be of the form old_path=new_path")
old_path, new_path = splitted_parameter
if not (old_path and new_path):
o.fatal("a graft point cannot be empty")
- graft_points.append((realpath(old_path), realpath(new_path)))
+ graft_points.append((resolve_parent(old_path),
+ resolve_parent(new_path)))
-is_reverse = os.environ.get('BUP_SERVER_REVERSE')
+is_reverse = environ.get(b'BUP_SERVER_REVERSE')
if is_reverse and opt.remote:
o.fatal("don't use -r in reverse mode; it's automatic")
-if opt.name:
- if opt.name.startswith('.'):
- o.fatal('backup set names cannot start with "."')
- if '/' in opt.name:
- o.fatal('backup set names cannot contain "/"')
-refname = opt.name and 'refs/heads/%s' % opt.name or None
+name = opt.name
+if name and not valid_save_name(name):
+ o.fatal("'%s' is not a valid branch name" % path_msg(name))
+refname = name and b'refs/heads/%s' % name or None
if opt.remote or is_reverse:
- cli = client.Client(opt.remote)
+ try:
+ cli = client.Client(opt.remote)
+ except client.ClientError as e:
+ log('error: %s' % e)
+ sys.exit(1)
oldref = refname and cli.read_ref(refname) or None
w = cli.new_packwriter(compression_level=opt.compress)
else:
handle_ctrl_c()
-def eatslash(dir):
- if dir.endswith('/'):
- return dir[:-1]
- else:
- return dir
-
-
# Metadata is stored in a file named .bupm in each directory. The
# first metadata entry will be the metadata for the current directory.
# The remaining entries will be for each of the other directory
# Since the git tree elements are sorted according to
# git.shalist_item_sort_key, the metalist items are accumulated as
# (sort_key, metadata) tuples, and then sorted when the .bupm file is
-# created. The sort_key must be computed using the element's real
-# name and mode rather than the git mode and (possibly mangled) name.
+# created. The sort_key should have been computed using the element's
+# mangled name and git mode (after hashsplitting), but the code isn't
+# actually doing that but rather uses the element's real name and mode.
+# This makes things a bit more difficult when reading it back, see
+# vfs.ordered_tree_entries().
# Maintain a stack of information representing the current location in
# the archive being constructed. The current path is recorded in
# Enter a new archive directory -- make it the current directory.
parts.append(part)
shalists.append([])
- metalists.append([('', metadata)]) # This dir's metadata (no name).
+ metalists.append([(b'', metadata)]) # This dir's metadata (no name).
def _pop(force_tree, dir_metadata=None):
part = parts.pop()
shalist = shalists.pop()
metalist = metalists.pop()
- if metalist and not force_tree:
- if dir_metadata: # Override the original metadata pushed for this dir.
- metalist = [('', dir_metadata)] + metalist[1:]
- sorted_metalist = sorted(metalist, key = lambda x : x[0])
- metadata = ''.join([m[1].encode() for m in sorted_metalist])
- shalist.append((0100644, '.bupm', w.new_blob(metadata)))
- tree = force_tree or w.new_tree(shalist)
+ # FIXME: only test if collision is possible (i.e. given --strip, etc.)?
+ if force_tree:
+ tree = force_tree
+ else:
+ names_seen = set()
+ clean_list = []
+ metaidx = 1 # entry at 0 is for the dir
+ for x in shalist:
+ name = x[1]
+ if name in names_seen:
+ parent_path = b'/'.join(parts) + b'/'
+ add_error('error: ignoring duplicate path %s in %s'
+ % (path_msg(name), path_msg(parent_path)))
+ if not stat.S_ISDIR(x[0]):
+ del metalist[metaidx]
+ else:
+ names_seen.add(name)
+ clean_list.append(x)
+ if not stat.S_ISDIR(x[0]):
+ metaidx += 1
+
+ if metalist:
+ if dir_metadata: # Override the original metadata pushed for this dir.
+ metalist = [(b'', dir_metadata)] + metalist[1:]
+ sorted_metalist = sorted(metalist, key = lambda x : x[0])
+ metadata = b''.join([m[1].encode() for m in sorted_metalist])
+ metadata_f = BytesIO(metadata)
+ mode, id = hashsplit.split_to_blob_or_tree(w.new_blob, w.new_tree,
+ [metadata_f],
+ keep_boundaries=False)
+ clean_list.append((mode, b'.bupm', id))
+ tree = w.new_tree(clean_list)
if shalists:
shalists[-1].append((GIT_MODE_TREE,
git.mangle_name(part,
remainstr, kpsstr))
-indexfile = opt.indexfile or git.repo('bupindex')
+indexfile = opt.indexfile or git.repo(b'bupindex')
r = index.Reader(indexfile)
-if not os.access(indexfile + '.meta', os.W_OK|os.R_OK):
- log('error: cannot access "%s"; have you run bup index?' % indexfile)
+try:
+ msr = index.MetaStoreReader(indexfile + b'.meta')
+except IOError as ex:
+ if ex.errno != EACCES:
+ raise
+ log('error: cannot access %r; have you run bup index?'
+ % path_msg(indexfile))
sys.exit(1)
-msr = index.MetaStoreReader(indexfile + '.meta')
-hlink_db = hlinkdb.HLinkDB(indexfile + '.hlink')
+hlink_db = hlinkdb.HLinkDB(indexfile + b'.hlink')
def already_saved(ent):
return ent.is_valid() and w.exists(ent.sha) and ent.sha
tstart = time.time()
count = subcount = fcount = 0
lastskip_name = None
-lastdir = ''
+lastdir = b''
for (transname,ent) in r.filter(extra, wantrecurse=wantrecurse_during):
(dir, file) = os.path.split(ent.name)
exists = (ent.flags & index.IX_EXISTS)
else:
status = ' '
if opt.verbose >= 2:
- log('%s %-70s\n' % (status, ent.name))
+ log('%s %-70s\n' % (status, path_msg(ent.name)))
elif not stat.S_ISDIR(ent.mode) and lastdir != dir:
if not lastdir.startswith(dir):
- log('%s %-70s\n' % (status, os.path.join(dir, '')))
+ log('%s %-70s\n' % (status, path_msg(os.path.join(dir, b''))))
lastdir = dir
if opt.progress:
continue
if opt.smaller and ent.size >= opt.smaller:
if exists and not hashvalid:
- add_error('skipping large file "%s"' % ent.name)
+ if opt.verbose:
+ log('skipping large file "%s"\n' % path_msg(ent.name))
lastskip_name = ent.name
continue
- assert(dir.startswith('/'))
+ assert(dir.startswith(b'/'))
if opt.strip:
dirp = stripped_path_components(dir, extra)
elif opt.strip_path:
# ...].
if first_root == None:
- dir_name, fs_path = dirp[0]
first_root = dirp[0]
- # Not indexed, so just grab the FS metadata or use empty metadata.
- try:
- meta = metadata.from_path(fs_path) if fs_path else metadata.Metadata()
- except (OSError, IOError), e:
- add_error(e)
- lastskip_name = dir_name
- else:
- _push(dir_name, meta)
elif first_root != dirp[0]:
root_collision = True
dir_name, fs_path = path_component
# Not indexed, so just grab the FS metadata or use empty metadata.
try:
- meta = metadata.from_path(fs_path) if fs_path else metadata.Metadata()
- except (OSError, IOError), e:
+ meta = metadata.from_path(fs_path, normalized=True) \
+ if fs_path else metadata.Metadata()
+ except (OSError, IOError) as e:
add_error(e)
lastskip_name = dir_name
- else:
- _push(dir_name, meta)
+ meta = metadata.Metadata()
+ _push(dir_name, meta)
if not file:
if len(parts) == 1:
continue
# it's not a directory
- id = None
if hashvalid:
id = ent.sha
git_name = git.mangle_name(file, ent.mode, ent.gitmode)
(meta.atime, meta.mtime, meta.ctime) = (ent.atime, ent.mtime, ent.ctime)
metalists[-1].append((sort_key, meta))
else:
+ id = None
if stat.S_ISREG(ent.mode):
try:
f = hashsplit.open_noatime(ent.name)
- except (IOError, OSError), e:
+ except (IOError, OSError) as e:
add_error(e)
lastskip_name = ent.name
else:
(mode, id) = hashsplit.split_to_blob_or_tree(
w.new_blob, w.new_tree, [f],
keep_boundaries=False)
- except (IOError, OSError), e:
+ except (IOError, OSError) as e:
add_error('%s: %s' % (ent.name, e))
lastskip_name = ent.name
- else:
- if stat.S_ISDIR(ent.mode):
- assert(0) # handled above
- elif stat.S_ISLNK(ent.mode):
- try:
- rl = os.readlink(ent.name)
- except (OSError, IOError), e:
- add_error(e)
- lastskip_name = ent.name
- else:
- (mode, id) = (GIT_MODE_SYMLINK, w.new_blob(rl))
+ elif stat.S_ISDIR(ent.mode):
+ assert(0) # handled above
+ elif stat.S_ISLNK(ent.mode):
+ try:
+ rl = os.readlink(ent.name)
+ except (OSError, IOError) as e:
+ add_error(e)
+ lastskip_name = ent.name
else:
- # Everything else should be fully described by its
- # metadata, so just record an empty blob, so the paths
- # in the tree and .bupm will match up.
- (mode, id) = (GIT_MODE_FILE, w.new_blob(""))
+ (mode, id) = (GIT_MODE_SYMLINK, w.new_blob(rl))
+ else:
+ # Everything else should be fully described by its
+ # metadata, so just record an empty blob, so the paths
+ # in the tree and .bupm will match up.
+ (mode, id) = (GIT_MODE_FILE, w.new_blob(b''))
if id:
ent.validate(mode, id)
sort_key = git.shalist_item_sort_key((ent.mode, file, id))
hlink = find_hardlink_target(hlink_db, ent)
try:
- meta = metadata.from_path(ent.name, hardlink_target=hlink)
- except (OSError, IOError), e:
+ meta = metadata.from_path(ent.name, hardlink_target=hlink,
+ normalized=True)
+ except (OSError, IOError) as e:
add_error(e)
lastskip_name = ent.name
- else:
- metalists[-1].append((sort_key, meta))
+ meta = metadata.Metadata()
+ metalists[-1].append((sort_key, meta))
if exists and wasmissing:
count += oldsize
# When there's a collision, use empty metadata for the root.
dir_metadata = metadata.Metadata() if root_collision else None)
+sys.stdout.flush()
+out = byte_stream(sys.stdout)
+
if opt.tree:
- print tree.encode('hex')
-if opt.commit or opt.name:
- msg = 'bup save\n\nGenerated by command:\n%r\n' % sys.argv
- commit = w.new_commit(oldref, tree, date, msg)
+ out.write(hexlify(tree))
+ out.write(b'\n')
+if opt.commit or name:
+ msg = (b'bup save\n\nGenerated by command:\n%r\n'
+ % [argv_bytes(x) for x in sys.argv])
+ userline = (b'%s <%s@%s>' % (userfullname(), username(), hostname()))
+ commit = w.new_commit(tree, oldref, userline, date, None,
+ userline, date, None, msg)
if opt.commit:
- print commit.encode('hex')
+ out.write(hexlify(commit))
+ out.write(b'\n')
msr.close()
w.close() # must close before we can update the ref
projects / bup.git / blobdiff