def from_opts(opt, reverse=True): """ Return a repo - understands: * the following optional options: - max-pack-size - max-pack-objects - compress - remote * the BUP_SERVER_REVERSE environment variable """ git.check_repo_or_die() if reverse: is_reverse = environ.get(b'BUP_SERVER_REVERSE') if is_reverse and opt.remote: log("error: don't use -r in reverse mode; it's automatic") sys.exit(97) else: is_reverse = False try: compress = opt.compress except (KeyError, AttributeError): compress = None try: max_pack_size = parse_num( opt.max_pack_size) if opt.max_pack_size else None except (KeyError, AttributeError): max_pack_size = None try: max_pack_objects = parse_num( opt.max_pack_objects) if opt.max_pack_objects else None except (KeyError, AttributeError): max_pack_objects = None try: if opt.remote: return make_repo(opt.remote, compression_level=compress, max_pack_size=max_pack_size, max_pack_objects=max_pack_objects) if is_reverse: return make_repo(b'reverse://%s' % is_reverse, compression_level=compress, max_pack_size=max_pack_size, max_pack_objects=max_pack_objects) return LocalRepo(compression_level=compress, max_pack_size=max_pack_size, max_pack_objects=max_pack_objects) except client.ClientError as e: log('error: %s' % e) sys.exit(1)
def __init__(self, objcache_maker=_make_objcache, compression_level=1, run_midx=True, on_pack_finish=None, max_pack_size=None, max_pack_objects=None, repo_dir=None): self.repo_dir = repo_dir or repo() self.file = None self.parentfd = None self.count = 0 self.outbytes = 0 self.filename = None self.idx = None self.objcache_maker = objcache_maker self.objcache = None self.compression_level = compression_level self.run_midx=run_midx self.on_pack_finish = on_pack_finish if not max_pack_size: max_pack_size = git_config_get('pack.packSizeLimit', repo_dir=self.repo_dir) if max_pack_size is not None: max_pack_size = parse_num(max_pack_size) if not max_pack_size: # larger packs slow down pruning max_pack_size = 1000 * 1000 * 1000 self.max_pack_size = max_pack_size # cache memory usage is about 83 bytes per object self.max_pack_objects = max_pack_objects if max_pack_objects \ else max(1, self.max_pack_size // 5000)
def __init__(self, objcache_maker=_make_objcache, compression_level=1, run_midx=True, on_pack_finish=None, max_pack_size=None, max_pack_objects=None, repo_dir=None): self.repo_dir = repo_dir or repo() self.file = None self.parentfd = None self.count = 0 self.outbytes = 0 self.filename = None self.idx = None self.objcache_maker = objcache_maker self.objcache = None self.compression_level = compression_level self.run_midx = run_midx self.on_pack_finish = on_pack_finish if not max_pack_size: max_pack_size = git_config_get(b'pack.packSizeLimit', repo_dir=self.repo_dir) if max_pack_size is not None: max_pack_size = parse_num(max_pack_size) if not max_pack_size: # larger packs slow down pruning max_pack_size = 1000 * 1000 * 1000 self.max_pack_size = max_pack_size # cache memory usage is about 83 bytes per object self.max_pack_objects = max_pack_objects if max_pack_objects \ else max(1, self.max_pack_size // 5000)
def opts_from_cmdline(argv): o = options.Options(optspec) opt, flags, extra = o.parse_bytes(argv[1:]) opt.sources = extra if opt.name: opt.name = argv_bytes(opt.name) if opt.remote: opt.remote = argv_bytes(opt.remote) if opt.verbose is None: opt.verbose = 0 if not (opt.blobs or opt.tree or opt.commit or opt.name or opt.noop or opt.copy): o.fatal("use one or more of -b, -t, -c, -n, --noop, --copy") if opt.copy and (opt.blobs or opt.tree): o.fatal('--copy is incompatible with -b, -t') if (opt.noop or opt.copy) and (opt.commit or opt.name): o.fatal('--noop and --copy are incompatible with -c, -n') if opt.blobs and (opt.tree or opt.commit or opt.name): o.fatal('-b is incompatible with -t, -c, -n') if extra and opt.git_ids: o.fatal("don't provide filenames when using --git-ids") if opt.verbose >= 2: git.verbose = opt.verbose - 1 opt.bench = 1 if opt.max_pack_size: opt.max_pack_size = parse_num(opt.max_pack_size) if opt.max_pack_objects: opt.max_pack_objects = parse_num(opt.max_pack_objects) if opt.fanout: opt.fanout = parse_num(opt.fanout) if opt.bwlimit: opt.bwlimit = parse_num(opt.bwlimit) if opt.date: opt.date = parse_date_or_fatal(opt.date, o.fatal) else: opt.date = time.time() opt.is_reverse = environ.get(b'BUP_SERVER_REVERSE') if opt.is_reverse and opt.remote: o.fatal("don't use -r in reverse mode; it's automatic") if opt.name and not valid_save_name(opt.name): o.fatal("'%r' is not a valid branch name." % opt.name) return opt
def main(argv): o = options.Options(optspec) opt, flags, extra = o.parse_bytes(argv[1:]) if len(extra) != 1: o.fatal("exactly one argument expected") total = parse_num(extra[0]) handle_ctrl_c() if opt.force or not istty1: _helpers.write_random(sys.stdout.fileno(), total, opt.seed, opt.verbose and 1 or 0) else: log('error: not writing binary data to a terminal. Use -f to force.\n') sys.exit(1)
if not (opt.blobs or opt.tree or opt.commit or opt.name or opt.noop or opt.copy): o.fatal("use one or more of -b, -t, -c, -n, --noop, --copy") if (opt.noop or opt.copy) and (opt.blobs or opt.tree or opt.commit or opt.name): o.fatal('--noop and --copy are incompatible with -b, -t, -c, -n') if opt.blobs and (opt.tree or opt.commit or opt.name): o.fatal('-b is incompatible with -t, -c, -n') if extra and opt.git_ids: o.fatal("don't provide filenames when using --git-ids") if opt.verbose >= 2: git.verbose = opt.verbose - 1 opt.bench = 1 if opt.max_pack_size: git.max_pack_size = parse_num(opt.max_pack_size) if opt.max_pack_objects: git.max_pack_objects = parse_num(opt.max_pack_objects) if opt.fanout: hashsplit.fanout = parse_num(opt.fanout) if opt.blobs: hashsplit.fanout = 0 if opt.bwlimit: client.bwlimit = parse_num(opt.bwlimit) if opt.date: date = parse_date_or_fatal(opt.date, o.fatal) else: date = time.time() total_bytes = 0 def prog(filenum, nbytes):
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: client.bwlimit = parse_num(opt.bwlimit) if opt.date: date = parse_date_or_fatal(opt.date, o.fatal) else: date = time.time() if opt.strip and opt.strip_path: o.fatal("--strip is incompatible with --strip-path") graft_points = [] if opt.graft: if opt.strip: o.fatal("--strip is incompatible with --graft")
o.fatal('--noop and --copy are incompatible with -c, -n') if opt.blobs and (opt.tree or opt.commit or opt.name): o.fatal('-b is incompatible with -t, -c, -n') if extra and opt.git_ids: o.fatal("don't provide filenames when using --git-ids") if opt.verbose >= 2: git.verbose = opt.verbose - 1 opt.bench = 1 fanout = None if opt.fanout: # This used to be in hashsplit, but that's just confusing; # hashsplit now defaults to the real default (16) if 0 (or # None) is passed, but keep the command-line compatible... fanout = parse_num(opt.fanout) or 128 blobbits = None if opt.blobbits: blobbits = parse_num(opt.blobbits) if opt.bwlimit: client.bwlimit = parse_num(opt.bwlimit) if opt.date: date = parse_date_or_fatal(opt.date, o.fatal) else: date = time.time() total_bytes = 0 def prog(filenum, nbytes): global total_bytes
strip strips the path to every filename given strip-path= path-prefix to be stripped when saving graft= a graft point *old_path*=*new_path* (can be used more than once) #,compress= set compression level to # (0-9, 9 is highest) [1] """ o = options.Options(optspec) (opt, flags, extra) = o.parse(sys.argv[1:]) 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") opt.progress = (istty2 and not opt.quiet) opt.smaller = parse_num(opt.smaller or 0) if opt.bwlimit: client.bwlimit = parse_num(opt.bwlimit) if opt.date: date = parse_date_or_fatal(opt.date, o.fatal) else: date = time.time() if opt.strip and opt.strip_path: o.fatal("--strip is incompatible with --strip-path") graft_points = [] if opt.graft: if opt.strip: o.fatal("--strip is incompatible with --graft")
def main(argv): o = options.Options(optspec) opt, flags, extra = o.parse_bytes(argv[1:]) if opt.name: opt.name = argv_bytes(opt.name) if opt.remote: opt.remote = argv_bytes(opt.remote) if opt.verbose is None: opt.verbose = 0 if not (opt.blobs or opt.tree or opt.commit or opt.name or opt.noop or opt.copy): o.fatal("use one or more of -b, -t, -c, -n, --noop, --copy") if opt.copy and (opt.blobs or opt.tree): o.fatal('--copy is incompatible with -b, -t') if (opt.noop or opt.copy) and (opt.commit or opt.name): o.fatal('--noop and --copy are incompatible with -c, -n') if opt.blobs and (opt.tree or opt.commit or opt.name): o.fatal('-b is incompatible with -t, -c, -n') if extra and opt.git_ids: o.fatal("don't provide filenames when using --git-ids") if opt.verbose >= 2: git.verbose = opt.verbose - 1 opt.bench = 1 max_pack_size = None if opt.max_pack_size: max_pack_size = parse_num(opt.max_pack_size) max_pack_objects = None if opt.max_pack_objects: max_pack_objects = parse_num(opt.max_pack_objects) if opt.fanout: hashsplit.fanout = parse_num(opt.fanout) if opt.blobs: hashsplit.fanout = 0 if opt.bwlimit: client.bwlimit = parse_num(opt.bwlimit) if opt.date: date = parse_date_or_fatal(opt.date, o.fatal) else: date = time.time() # Hack around lack of nonlocal vars in python 2 total_bytes = [0] def prog(filenum, nbytes): total_bytes[0] += nbytes if filenum > 0: qprogress('Splitting: file #%d, %d kbytes\r' % (filenum + 1, total_bytes[0] // 1024)) else: qprogress('Splitting: %d kbytes\r' % (total_bytes[0] // 1024)) 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") start_time = time.time() if opt.name and not valid_save_name(opt.name): o.fatal("'%r' is not a valid branch name." % opt.name) refname = opt.name and b'refs/heads/%s' % opt.name or None if opt.noop or opt.copy: cli = pack_writer = oldref = None elif opt.remote or is_reverse: git.check_repo_or_die() cli = client.Client(opt.remote) oldref = refname and cli.read_ref(refname) or None pack_writer = cli.new_packwriter(compression_level=opt.compress, max_pack_size=max_pack_size, max_pack_objects=max_pack_objects) else: git.check_repo_or_die() cli = None oldref = refname and git.read_ref(refname) or None pack_writer = git.PackWriter(compression_level=opt.compress, max_pack_size=max_pack_size, max_pack_objects=max_pack_objects) input = byte_stream(sys.stdin) if opt.git_ids: # the input is actually a series of git object ids that we should retrieve # and split. # # This is a bit messy, but basically it converts from a series of # CatPipe.get() iterators into a series of file-type objects. # It would be less ugly if either CatPipe.get() returned a file-like object # (not very efficient), or split_to_shalist() expected an iterator instead # of a file. cp = git.CatPipe() class IterToFile: def __init__(self, it): self.it = iter(it) def read(self, size): v = next(self.it, None) return v or b'' def read_ids(): while 1: line = input.readline() if not line: break if line: line = line.strip() try: it = cp.get(line.strip()) next(it, None) # skip the file info except KeyError as e: add_error('error: %s' % e) continue yield IterToFile(it) files = read_ids() else: # the input either comes from a series of files or from stdin. files = extra and (open(argv_bytes(fn), 'rb') for fn in extra) or [input] if pack_writer: new_blob = pack_writer.new_blob new_tree = pack_writer.new_tree elif opt.blobs or opt.tree: # --noop mode new_blob = lambda content: git.calc_hash(b'blob', content) new_tree = lambda shalist: git.calc_hash(b'tree', git.tree_encode(shalist)) sys.stdout.flush() out = byte_stream(sys.stdout) if opt.blobs: shalist = hashsplit.split_to_blobs(new_blob, files, keep_boundaries=opt.keep_boundaries, progress=prog) for (sha, size, level) in shalist: out.write(hexlify(sha) + b'\n') reprogress() elif opt.tree or opt.commit or opt.name: if opt.name: # insert dummy_name which may be used as a restore target mode, sha = \ hashsplit.split_to_blob_or_tree(new_blob, new_tree, files, keep_boundaries=opt.keep_boundaries, progress=prog) splitfile_name = git.mangle_name(b'data', hashsplit.GIT_MODE_FILE, mode) shalist = [(mode, splitfile_name, sha)] else: shalist = hashsplit.split_to_shalist( new_blob, new_tree, files, keep_boundaries=opt.keep_boundaries, progress=prog) tree = new_tree(shalist) else: last = 0 it = hashsplit.hashsplit_iter(files, keep_boundaries=opt.keep_boundaries, progress=prog) for (blob, level) in it: hashsplit.total_split += len(blob) if opt.copy: sys.stdout.write(str(blob)) megs = hashsplit.total_split // 1024 // 1024 if not opt.quiet and last != megs: last = megs if opt.verbose: log('\n') if opt.tree: out.write(hexlify(tree) + b'\n') if opt.commit or opt.name: msg = b'bup split\n\nGenerated by command:\n%r\n' % compat.get_argvb() ref = opt.name and (b'refs/heads/%s' % opt.name) or None userline = b'%s <%s@%s>' % (userfullname(), username(), hostname()) commit = pack_writer.new_commit(tree, oldref, userline, date, None, userline, date, None, msg) if opt.commit: out.write(hexlify(commit) + b'\n') if pack_writer: pack_writer.close() # must close before we can update the ref if opt.name: if cli: cli.update_ref(refname, commit, oldref) else: git.update_ref(refname, commit, oldref) if cli: cli.close() secs = time.time() - start_time size = hashsplit.total_split if opt.bench: log('bup: %.2f kbytes in %.2f secs = %.2f kbytes/sec\n' % (size / 1024, secs, size / 1024 / secs)) if saved_errors: log('WARNING: %d errors encountered while saving.\n' % len(saved_errors)) sys.exit(1)
if not (opt.blobs or opt.tree or opt.commit or opt.name or opt.noop or opt.copy): o.fatal("use one or more of -b, -t, -c, -n, --noop, --copy") if (opt.noop or opt.copy) and (opt.blobs or opt.tree or opt.commit or opt.name): o.fatal('--noop and --copy are incompatible with -b, -t, -c, -n') if opt.blobs and (opt.tree or opt.commit or opt.name): o.fatal('-b is incompatible with -t, -c, -n') if extra and opt.git_ids: o.fatal("don't provide filenames when using --git-ids") if opt.verbose >= 2: git.verbose = opt.verbose - 1 opt.bench = 1 if opt.max_pack_size: git.max_pack_size = parse_num(opt.max_pack_size) if opt.max_pack_objects: git.max_pack_objects = parse_num(opt.max_pack_objects) if opt.fanout: hashsplit.fanout = parse_num(opt.fanout) if opt.blobs: hashsplit.fanout = 0 if opt.bwlimit: client.bwlimit = parse_num(opt.bwlimit) if opt.date: date = parse_date_or_fatal(opt.date, o.fatal) else: date = time.time() total_bytes = 0
def main(argv): # Hack around lack of nonlocal vars in python 2 _nonlocal = {} o = options.Options(optspec) opt, flags, extra = o.parse_bytes(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: client.bwlimit = parse_num(opt.bwlimit) if opt.date: date = parse_date_or_fatal(opt.date, o.fatal) else: date = time.time() if opt.strip and opt.strip_path: o.fatal("--strip is incompatible with --strip-path") graft_points = [] if opt.graft: if opt.strip: o.fatal("--strip is incompatible with --graft") if opt.strip_path: o.fatal("--strip-path is incompatible with --graft") for (option, parameter) in flags: if option == "--graft": 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( (resolve_parent(old_path), resolve_parent(new_path))) 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") 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: 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: cli = None oldref = refname and git.read_ref(refname) or None w = git.PackWriter(compression_level=opt.compress) handle_ctrl_c() # 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 # elements, in the order they're listed in the index. # # 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 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 # parts, which will be something like ['', 'home', 'someuser'], and # the accumulated content and metadata for of the dirs in parts is # stored in parallel stacks in shalists and metalists. parts = [] # Current archive position (stack of dir names). shalists = [] # Hashes for each dir in paths. metalists = [] # Metadata for each dir in paths. def _push(part, metadata): # Enter a new archive directory -- make it the current directory. parts.append(part) shalists.append([]) metalists.append([(b'', metadata)]) # This dir's metadata (no name). def _pop(force_tree, dir_metadata=None): # Leave the current archive directory and add its tree to its parent. assert (len(parts) >= 1) part = parts.pop() shalist = shalists.pop() metalist = metalists.pop() # 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 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, GIT_MODE_TREE, GIT_MODE_TREE), tree)) return tree _nonlocal['count'] = 0 _nonlocal['subcount'] = 0 _nonlocal['lastremain'] = None def progress_report(n): _nonlocal['subcount'] += n cc = _nonlocal['count'] + _nonlocal['subcount'] pct = total and (cc * 100.0 / total) or 0 now = time.time() elapsed = now - tstart kps = elapsed and int(cc / 1024. / elapsed) kps_frac = 10**int(math.log(kps + 1, 10) - 1) kps = int(kps / kps_frac) * kps_frac if cc: remain = elapsed * 1.0 / cc * (total - cc) else: remain = 0.0 if (_nonlocal['lastremain'] and (remain > _nonlocal['lastremain']) and ((remain - _nonlocal['lastremain']) / _nonlocal['lastremain'] < 0.05)): remain = _nonlocal['lastremain'] else: _nonlocal['lastremain'] = remain hours = int(remain / 60 / 60) mins = int(remain / 60 - hours * 60) secs = int(remain - hours * 60 * 60 - mins * 60) if elapsed < 30: remainstr = '' kpsstr = '' else: kpsstr = '%dk/s' % kps if hours: remainstr = '%dh%dm' % (hours, mins) elif mins: remainstr = '%dm%d' % (mins, secs) else: remainstr = '%ds' % secs qprogress( 'Saving: %.2f%% (%d/%dk, %d/%d files) %s %s\r' % (pct, cc / 1024, total / 1024, fcount, ftotal, remainstr, kpsstr)) indexfile = opt.indexfile or git.repo(b'bupindex') r = index.Reader(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) hlink_db = hlinkdb.HLinkDB(indexfile + b'.hlink') def already_saved(ent): return ent.is_valid() and w.exists(ent.sha) and ent.sha def wantrecurse_pre(ent): return not already_saved(ent) def wantrecurse_during(ent): return not already_saved(ent) or ent.sha_missing() def find_hardlink_target(hlink_db, ent): if hlink_db and not stat.S_ISDIR(ent.mode) and ent.nlink > 1: link_paths = hlink_db.node_paths(ent.dev, ent.ino) if link_paths: return link_paths[0] total = ftotal = 0 if opt.progress: for (transname, ent) in r.filter(extra, wantrecurse=wantrecurse_pre): if not (ftotal % 10024): qprogress('Reading index: %d\r' % ftotal) exists = ent.exists() hashvalid = already_saved(ent) ent.set_sha_missing(not hashvalid) if not opt.smaller or ent.size < opt.smaller: if exists and not hashvalid: total += ent.size ftotal += 1 progress('Reading index: %d, done.\n' % ftotal) hashsplit.progress_callback = progress_report # Root collisions occur when strip or graft options map more than one # path to the same directory (paths which originally had separate # parents). When that situation is detected, use empty metadata for # the parent. Otherwise, use the metadata for the common parent. # Collision example: "bup save ... --strip /foo /foo/bar /bar". # FIXME: Add collision tests, or handle collisions some other way. # FIXME: Detect/handle strip/graft name collisions (other than root), # i.e. if '/foo/bar' and '/bar' both map to '/'. first_root = None root_collision = None tstart = time.time() fcount = 0 lastskip_name = None 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) hashvalid = already_saved(ent) wasmissing = ent.sha_missing() oldsize = ent.size if opt.verbose: if not exists: status = 'D' elif not hashvalid: if ent.sha == index.EMPTY_SHA: status = 'A' else: status = 'M' else: status = ' ' if opt.verbose >= 2: 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, path_msg(os.path.join(dir, b'')))) lastdir = dir if opt.progress: progress_report(0) fcount += 1 if not exists: continue if opt.smaller and ent.size >= opt.smaller: if exists and not hashvalid: if opt.verbose: log('skipping large file "%s"\n' % path_msg(ent.name)) lastskip_name = ent.name continue assert (dir.startswith(b'/')) if opt.strip: dirp = stripped_path_components(dir, extra) elif opt.strip_path: dirp = stripped_path_components(dir, [opt.strip_path]) elif graft_points: dirp = grafted_path_components(graft_points, dir) else: dirp = path_components(dir) # At this point, dirp contains a representation of the archive # path that looks like [(archive_dir_name, real_fs_path), ...]. # So given "bup save ... --strip /foo/bar /foo/bar/baz", dirp # might look like this at some point: # [('', '/foo/bar'), ('baz', '/foo/bar/baz'), ...]. # This dual representation supports stripping/grafting, where the # archive path may not have a direct correspondence with the # filesystem. The root directory is represented by an initial # component named '', and any component that doesn't have a # corresponding filesystem directory (due to grafting, for # example) will have a real_fs_path of None, i.e. [('', None), # ...]. if first_root == None: first_root = dirp[0] elif first_root != dirp[0]: root_collision = True # If switching to a new sub-tree, finish the current sub-tree. while parts > [x[0] for x in dirp]: _pop(force_tree=None) # If switching to a new sub-tree, start a new sub-tree. for path_component in dirp[len(parts):]: 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, normalized=True) \ if fs_path else metadata.Metadata() except (OSError, IOError) as e: add_error(e) lastskip_name = dir_name meta = metadata.Metadata() _push(dir_name, meta) if not file: if len(parts) == 1: continue # We're at the top level -- keep the current root dir # Since there's no filename, this is a subdir -- finish it. oldtree = already_saved(ent) # may be None newtree = _pop(force_tree=oldtree) if not oldtree: if lastskip_name and lastskip_name.startswith(ent.name): ent.invalidate() else: ent.validate(GIT_MODE_TREE, newtree) ent.repack() if exists and wasmissing: _nonlocal['count'] += oldsize continue # it's not a directory if hashvalid: id = ent.sha git_name = git.mangle_name(file, ent.mode, ent.gitmode) git_info = (ent.gitmode, git_name, id) shalists[-1].append(git_info) sort_key = git.shalist_item_sort_key((ent.mode, file, id)) meta = msr.metadata_at(ent.meta_ofs) meta.hardlink_target = find_hardlink_target(hlink_db, ent) # Restore the times that were cleared to 0 in the metastore. (meta.atime, meta.mtime, meta.ctime) = (ent.atime, ent.mtime, ent.ctime) metalists[-1].append((sort_key, meta)) else: id = None hlink = find_hardlink_target(hlink_db, ent) try: meta = metadata.from_path( ent.name, hardlink_target=hlink, normalized=True, after_stat=after_nondir_metadata_stat) except (OSError, IOError) as e: add_error(e) lastskip_name = ent.name continue if stat.S_IFMT(ent.mode) != stat.S_IFMT(meta.mode): # The mode changed since we indexed the file, this is bad. # This can cause two issues: # 1) We e.g. think the file is a regular file, but now it's # something else (a device, socket, FIFO or symlink, etc.) # and _read_ from it when we shouldn't. # 2) We then record it as valid, but don't update the index # metadata, and on a subsequent save it has 'hashvalid' # but is recorded as the file type from the index, when # the content is something else ... # Avoid all of these consistency issues by just skipping such # things - it really ought to not happen anyway. add_error("%s: mode changed since indexing, skipping." % path_msg(ent.name)) lastskip_name = ent.name continue if stat.S_ISREG(ent.mode): try: # If the file changes while we're reading it, then our reading # may stop at some point, but the stat() above may have gotten # a different size already. Recalculate the meta size so that # the repository records the accurate size in the metadata, even # if the other stat() data might be slightly older than the file # content (which we can't fix, this is inherently racy, but we # can prevent the size mismatch.) meta.size = 0 def new_blob(data): meta.size += len(data) return w.new_blob(data) before_saving_regular_file(ent.name) with hashsplit.open_noatime(ent.name) as f: (mode, id) = hashsplit.split_to_blob_or_tree( new_blob, w.new_tree, [f], keep_boundaries=False) except (IOError, OSError) as e: add_error('%s: %s' % (ent.name, e)) lastskip_name = ent.name elif stat.S_ISDIR(ent.mode): assert (0) # handled above elif stat.S_ISLNK(ent.mode): mode, id = (GIT_MODE_SYMLINK, w.new_blob(meta.symlink_target)) 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) ent.repack() git_name = git.mangle_name(file, ent.mode, ent.gitmode) git_info = (mode, git_name, id) shalists[-1].append(git_info) sort_key = git.shalist_item_sort_key((ent.mode, file, id)) metalists[-1].append((sort_key, meta)) if exists and wasmissing: _nonlocal['count'] += oldsize _nonlocal['subcount'] = 0 if opt.progress: pct = total and _nonlocal['count'] * 100.0 / total or 100 progress( 'Saving: %.2f%% (%d/%dk, %d/%d files), done. \n' % (pct, _nonlocal['count'] / 1024, total / 1024, fcount, ftotal)) while len(parts) > 1: # _pop() all the parts above the root _pop(force_tree=None) assert (len(shalists) == 1) assert (len(metalists) == 1) # Finish the root directory. tree = _pop( force_tree=None, # 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: out.write(hexlify(tree)) out.write(b'\n') if opt.commit or name: if compat.py_maj > 2: # Strip b prefix from python 3 bytes reprs to preserve previous format msgcmd = b'[%s]' % b', '.join( [repr(argv_bytes(x))[1:].encode('ascii') for x in argv]) else: msgcmd = repr(argv) msg = b'bup save\n\nGenerated by command:\n%s\n' % msgcmd userline = (b'%s <%s@%s>' % (userfullname(), username(), hostname())) commit = w.new_commit(tree, oldref, userline, date, None, userline, date, None, msg) if opt.commit: out.write(hexlify(commit)) out.write(b'\n') msr.close() w.close() # must close before we can update the ref if opt.name: if cli: cli.update_ref(refname, commit, oldref) else: git.update_ref(refname, commit, oldref) if cli: cli.close() if saved_errors: log('WARNING: %d errors encountered while saving.\n' % len(saved_errors)) sys.exit(1)
def main(argv): is_reverse = environ.get(b'BUP_SERVER_REVERSE') opt = parse_args(argv) git.check_repo_or_die() if opt.source: opt.source = argv_bytes(opt.source) if opt.bwlimit: client.bwlimit = parse_num(opt.bwlimit) if is_reverse and opt.remote: misuse("don't use -r in reverse mode; it's automatic") if opt.remote or is_reverse: dest_repo = RemoteRepo(opt.remote) else: dest_repo = LocalRepo() with dest_repo as dest_repo: with LocalRepo(repo_dir=opt.source) as src_repo: with dest_repo.new_packwriter( compression_level=opt.compress) as writer: # Resolve and validate all sources and destinations, # implicit or explicit, and do it up-front, so we can # fail before we start writing (for any obviously # broken cases). target_items = resolve_targets(opt.target_specs, src_repo, dest_repo) updated_refs = { } # ref_name -> (original_ref, tip_commit(bin)) no_ref_info = (None, None) handlers = { 'ff': handle_ff, 'append': handle_append, 'force-pick': handle_pick, 'pick': handle_pick, 'new-tag': handle_new_tag, 'replace': handle_replace, 'unnamed': handle_unnamed } for item in target_items: debug1('get-spec: %r\n' % (item.spec, )) debug1('get-src: %s\n' % loc_desc(item.src)) debug1('get-dest: %s\n' % loc_desc(item.dest)) dest_path = item.dest and item.dest.path if dest_path: if dest_path.startswith(b'/.tag/'): dest_ref = b'refs/tags/%s' % dest_path[6:] else: dest_ref = b'refs/heads/%s' % dest_path[1:] else: dest_ref = None dest_hash = item.dest and item.dest.hash orig_ref, cur_ref = updated_refs.get(dest_ref, no_ref_info) orig_ref = orig_ref or dest_hash cur_ref = cur_ref or dest_hash handler = handlers[item.spec.method] item_result = handler(item, src_repo, writer, opt) if len(item_result) > 1: new_id, tree = item_result else: new_id = item_result[0] if not dest_ref: log_item(item.spec.src, item.src.type, opt) else: updated_refs[dest_ref] = (orig_ref, new_id) if dest_ref.startswith(b'refs/tags/'): log_item(item.spec.src, item.src.type, opt, tag=new_id) else: log_item(item.spec.src, item.src.type, opt, tree=tree, commit=new_id) # Only update the refs at the very end, once the writer is # closed, so that if something goes wrong above, the old refs # will be undisturbed. for ref_name, info in items(updated_refs): orig_ref, new_ref = info try: dest_repo.update_ref(ref_name, new_ref, orig_ref) if opt.verbose: new_hex = hexlify(new_ref) if orig_ref: orig_hex = hexlify(orig_ref) log('updated %r (%s -> %s)\n' % (ref_name, orig_hex, new_hex)) else: log('updated %r (%s)\n' % (ref_name, new_hex)) except (git.GitError, client.ClientError) as ex: add_error('unable to update ref %r: %s' % (ref_name, ex)) if saved_errors: log('WARNING: %d errors encountered while saving.\n' % len(saved_errors)) sys.exit(1)
def opts_from_cmdline(argv): o = options.Options(optspec) opt, flags, extra = o.parse_bytes(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) 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") if opt.date: opt.date = parse_date_or_fatal(opt.date, o.fatal) else: opt.date = time.time() opt.progress = (istty2 and not opt.quiet) opt.smaller = parse_num(opt.smaller or 0) if opt.bwlimit: opt.bwlimit = parse_num(opt.bwlimit) if opt.strip and opt.strip_path: o.fatal("--strip is incompatible with --strip-path") opt.sources = [argv_bytes(x) for x in extra] grafts = [] if opt.graft: if opt.strip: o.fatal("--strip is incompatible with --graft") if opt.strip_path: o.fatal("--strip-path is incompatible with --graft") for (option, parameter) in flags: if option == "--graft": 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") grafts.append((resolve_parent(old_path), resolve_parent(new_path))) opt.grafts = grafts opt.is_reverse = environ.get(b'BUP_SERVER_REVERSE') if opt.is_reverse and opt.remote: o.fatal("don't use -r in reverse mode; it's automatic") if opt.name and not valid_save_name(opt.name): o.fatal("'%s' is not a valid branch name" % path_msg(opt.name)) return opt
def main(argv): o = options.Options(optspec) opt, flags, extra = o.parse_bytes(argv[1:]) if opt.name: opt.name = argv_bytes(opt.name) if opt.verbose is None: opt.verbose = 0 if not (opt.blobs or opt.tree or opt.commit or opt.name or opt.noop or opt.copy): o.fatal("use one or more of -b, -t, -c, -n, --noop, --copy") if opt.copy and (opt.blobs or opt.tree): o.fatal('--copy is incompatible with -b, -t') if (opt.noop or opt.copy) and (opt.commit or opt.name): o.fatal('--noop and --copy are incompatible with -c, -n') if opt.blobs and (opt.tree or opt.commit or opt.name): o.fatal('-b is incompatible with -t, -c, -n') if extra and opt.git_ids: o.fatal("don't provide filenames when using --git-ids") if opt.verbose >= 2: git.verbose = opt.verbose - 1 opt.bench = 1 fanout = None if opt.fanout: # This used to be in hashsplit, but that's just confusing; # hashsplit now defaults to the real default (16) if 0 (or # None) is passed, but keep the command-line compatible... fanout = parse_num(opt.fanout) or 128 blobbits = None if opt.blobbits: blobbits = parse_num(opt.blobbits) if opt.bwlimit: client.bwlimit = parse_num(opt.bwlimit) if opt.date: date = parse_date_or_fatal(opt.date, o.fatal) else: date = time.time() # Hack around lack of nonlocal vars in python 2 total_bytes = [0] def prog(filenum, nbytes): total_bytes[0] += nbytes if filenum > 0: qprogress('Splitting: file #%d, %d kbytes\r' % (filenum + 1, total_bytes[0] // 1024)) else: qprogress('Splitting: %d kbytes\r' % (total_bytes[0] // 1024)) start_time = time.time() if opt.name and not valid_save_name(opt.name): o.fatal("'%r' is not a valid branch name." % opt.name) refname = opt.name and b'refs/heads/%s' % opt.name or None if opt.noop or opt.copy: repo = oldref = None else: repo = from_opts(opt) oldref = refname and repo.read_ref(refname) or None repobits = repo.config(b'bup.blobbits', opttype='int') or hashsplit.BUP_BLOBBITS if not blobbits: blobbits = repobits else: print("overriding repo blobbits %d from cmdline with %d" % (repobits, blobbits)) input = byte_stream(sys.stdin) if opt.git_ids: # the input is actually a series of git object ids that we should retrieve # and split. # # This is a bit messy, but basically it converts from a series of # repo.cat() iterators into a series of file-type objects. # It would be less ugly if either repo.cat() returned a file-like object # (not very efficient), or split_to_shalist() expected an iterator instead # of a file. class IterToFile: def __init__(self, it): self.it = iter(it) def read(self, size): v = next(self.it, None) return v or b'' def read_ids(): while 1: line = input.readline() if not line: break if line: line = line.strip() try: it = repo.cat(line.strip()) next(it, None) # skip the file info except KeyError as e: add_error('error: %s' % e) continue yield IterToFile(it) files = read_ids() else: # the input either comes from a series of files or from stdin. files = extra and (open(argv_bytes(fn), 'rb') for fn in extra) or [input] if repo: write_data = repo.write_data write_tree = repo.write_tree elif opt.blobs or opt.tree: # --noop mode write_data = lambda content: git.calc_hash(b'blob', content) write_tree = lambda shalist: git.calc_hash(b'tree', git.tree_encode(shalist)) sys.stdout.flush() out = byte_stream(sys.stdout) if opt.blobs: shalist = hashsplit.split_to_blobs(write_data, files, keep_boundaries=opt.keep_boundaries, progress=prog, blobbits=blobbits) for (sha, size, level) in shalist: out.write(hexlify(sha) + b'\n') reprogress() elif opt.tree or opt.commit or opt.name: if opt.name: # insert dummy_name which may be used as a restore target mode, sha = \ hashsplit.split_to_blob_or_tree(write_data, write_tree, files, keep_boundaries=opt.keep_boundaries, progress=prog, fanout=fanout, blobbits=blobbits) splitfile_name = git.mangle_name(b'data', hashsplit.GIT_MODE_FILE, mode) shalist = [(mode, splitfile_name, sha)] else: shalist = hashsplit.split_to_shalist( write_data, write_tree, files, keep_boundaries=opt.keep_boundaries, progress=prog, fanout=fanout, blobbits=blobbits) tree = write_tree(shalist) else: last = 0 it = hashsplit.hashsplit_iter(files, keep_boundaries=opt.keep_boundaries, progress=prog, fanout=fanout, blobbits=blobbits) for (blob, level) in it: hashsplit.total_split += len(blob) if opt.copy: sys.stdout.write(str(blob)) megs = hashsplit.total_split // 1024 // 1024 if not opt.quiet and last != megs: last = megs if opt.verbose: log('\n') if opt.tree: out.write(hexlify(tree) + b'\n') if opt.commit or opt.name: msg = b'bup split\n\nGenerated by command:\n%r\n' % compat.get_argvb() ref = opt.name and (b'refs/heads/%s' % opt.name) or None userline = b'%s <%s@%s>' % (userfullname(), username(), hostname()) commit = repo.write_commit(tree, oldref, userline, date, None, userline, date, None, msg) if opt.commit: out.write(hexlify(commit) + b'\n') if opt.name and repo: repo.update_ref(refname, commit, oldref) if repo: repo.close() secs = time.time() - start_time size = hashsplit.total_split if opt.bench: log('bup: %.2f kbytes in %.2f secs = %.2f kbytes/sec\n' % (size / 1024, secs, size / 1024 / secs)) if saved_errors: log('WARNING: %d errors encountered while saving.\n' % len(saved_errors)) sys.exit(1)
import os, sys from bup import options, _helpers from bup.helpers import atoi, handle_ctrl_c, log, parse_num optspec = """ bup random [-S seed] <numbytes> -- S,seed= optional random number seed [1] f,force print random data to stdout even if it's a tty v,verbose print byte counter to stderr """ o = options.Options(optspec) (opt, flags, extra) = o.parse(sys.argv[1:]) if len(extra) != 1: o.fatal("exactly one argument expected") total = parse_num(extra[0]) handle_ctrl_c() if opt.force or (not os.isatty(1) and not atoi(os.environ.get('BUP_FORCE_TTY')) & 1): _helpers.write_random(sys.stdout.fileno(), total, opt.seed, opt.verbose and 1 or 0) else: log('error: not writing binary data to a terminal. Use -f to force.\n') sys.exit(1)
from __future__ import absolute_import import os, sys from bup import options, _helpers from bup.helpers import atoi, handle_ctrl_c, log, parse_num optspec = """ bup random [-S seed] <numbytes> -- S,seed= optional random number seed [1] f,force print random data to stdout even if it's a tty v,verbose print byte counter to stderr """ o = options.Options(optspec) (opt, flags, extra) = o.parse(sys.argv[1:]) if len(extra) != 1: o.fatal("exactly one argument expected") total = parse_num(extra[0]) handle_ctrl_c() if opt.force or (not os.isatty(1) and not atoi(os.environ.get('BUP_FORCE_TTY')) & 1): _helpers.write_random(sys.stdout.fileno(), total, opt.seed, opt.verbose and 1 or 0) else: log('error: not writing binary data to a terminal. Use -f to force.\n') sys.exit(1)