mirror of
https://github.com/borgbackup/borg.git
synced 2024-12-24 16:55:36 +00:00
503 lines
23 KiB
Python
503 lines
23 KiB
Python
import argparse
|
|
from binascii import hexlify
|
|
from datetime import datetime
|
|
from operator import attrgetter
|
|
import os
|
|
import stat
|
|
import sys
|
|
|
|
from .archive import Archive
|
|
from .repository import Repository
|
|
from .cache import Cache
|
|
from .key import key_creator
|
|
from .helpers import location_validator, format_time, \
|
|
format_file_mode, IncludePattern, ExcludePattern, exclude_path, adjust_patterns, to_localtime, \
|
|
get_cache_dir, get_keys_dir, format_timedelta, prune_split, Manifest, Location, remove_surrogates
|
|
from .remote import RepositoryServer, RemoteRepository, ConnectionClosed
|
|
|
|
|
|
class Archiver:
|
|
|
|
def __init__(self):
|
|
self.exit_code = 0
|
|
|
|
def open_repository(self, location, create=False):
|
|
if location.proto == 'ssh':
|
|
repository = RemoteRepository(location, create=create)
|
|
else:
|
|
repository = Repository(location.path, create=create)
|
|
repository._location = location
|
|
return repository
|
|
|
|
def print_error(self, msg, *args):
|
|
msg = args and msg % args or msg
|
|
self.exit_code = 1
|
|
print('attic: ' + msg, file=sys.stderr)
|
|
|
|
def print_verbose(self, msg, *args, **kw):
|
|
if self.verbose:
|
|
msg = args and msg % args or msg
|
|
if kw.get('newline', True):
|
|
print(msg)
|
|
else:
|
|
print(msg, end=' ')
|
|
|
|
def do_serve(self, args):
|
|
return RepositoryServer().serve()
|
|
|
|
def do_init(self, args):
|
|
"""Initialize a new repository
|
|
"""
|
|
print('Initializing repository at "%s"' % args.repository.orig)
|
|
repository = self.open_repository(args.repository, create=True)
|
|
key = key_creator(repository, args)
|
|
manifest = Manifest()
|
|
manifest.repository = repository
|
|
manifest.key = key
|
|
manifest.write()
|
|
repository.commit()
|
|
return self.exit_code
|
|
|
|
def do_change_passphrase(self, args):
|
|
"""Change passphrase on repository key file
|
|
"""
|
|
repository = self.open_repository(Location(args.repository))
|
|
manifest, key = Manifest.load(repository)
|
|
key.change_passphrase()
|
|
return self.exit_code
|
|
|
|
def do_create(self, args):
|
|
"""Create new archive
|
|
"""
|
|
t0 = datetime.now()
|
|
repository = self.open_repository(args.archive)
|
|
manifest, key = Manifest.load(repository)
|
|
cache = Cache(repository, key, manifest)
|
|
archive = Archive(repository, key, manifest, args.archive.archive, cache=cache,
|
|
create=True, checkpoint_interval=args.checkpoint_interval,
|
|
numeric_owner=args.numeric_owner)
|
|
# Add Attic cache dir to inode_skip list
|
|
skip_inodes = set()
|
|
try:
|
|
st = os.stat(get_cache_dir())
|
|
skip_inodes.add((st.st_ino, st.st_dev))
|
|
except IOError:
|
|
pass
|
|
# Add local repository dir to inode_skip list
|
|
if not args.archive.host:
|
|
try:
|
|
st = os.stat(args.archive.path)
|
|
skip_inodes.add((st.st_ino, st.st_dev))
|
|
except IOError:
|
|
pass
|
|
for path in args.paths:
|
|
if args.dontcross:
|
|
try:
|
|
restrict_dev = os.lstat(path).st_dev
|
|
except OSError as e:
|
|
self.print_error('%s: %s', path, e)
|
|
continue
|
|
else:
|
|
restrict_dev = None
|
|
self._process(archive, cache, args.excludes, skip_inodes, path, restrict_dev)
|
|
archive.save()
|
|
if args.stats:
|
|
t = datetime.now()
|
|
diff = t - t0
|
|
print('-' * 40)
|
|
print('Archive name: %s' % args.archive.archive)
|
|
print('Archive fingerprint: %s' % hexlify(archive.id).decode('ascii'))
|
|
print('Start time: %s' % t0.strftime('%c'))
|
|
print('End time: %s' % t.strftime('%c'))
|
|
print('Duration: %s' % format_timedelta(diff))
|
|
archive.stats.print_()
|
|
print('-' * 40)
|
|
return self.exit_code
|
|
|
|
def _process(self, archive, cache, excludes, skip_inodes, path, restrict_dev):
|
|
if exclude_path(path, excludes):
|
|
return
|
|
try:
|
|
st = os.lstat(path)
|
|
except OSError as e:
|
|
self.print_error('%s: %s', path, e)
|
|
return
|
|
if (st.st_ino, st.st_dev) in skip_inodes:
|
|
return
|
|
# Entering a new filesystem?
|
|
if restrict_dev and st.st_dev != restrict_dev:
|
|
return
|
|
# Ignore unix sockets
|
|
if stat.S_ISSOCK(st.st_mode):
|
|
return
|
|
self.print_verbose(remove_surrogates(path))
|
|
if stat.S_ISREG(st.st_mode):
|
|
try:
|
|
archive.process_file(path, st, cache)
|
|
except IOError as e:
|
|
self.print_error('%s: %s', path, e)
|
|
elif stat.S_ISDIR(st.st_mode):
|
|
archive.process_item(path, st)
|
|
try:
|
|
entries = os.listdir(path)
|
|
except OSError as e:
|
|
self.print_error('%s: %s', path, e)
|
|
else:
|
|
for filename in sorted(entries):
|
|
self._process(archive, cache, excludes, skip_inodes,
|
|
os.path.join(path, filename), restrict_dev)
|
|
elif stat.S_ISLNK(st.st_mode):
|
|
archive.process_symlink(path, st)
|
|
elif stat.S_ISFIFO(st.st_mode):
|
|
archive.process_item(path, st)
|
|
elif stat.S_ISCHR(st.st_mode) or stat.S_ISBLK(st.st_mode):
|
|
archive.process_dev(path, st)
|
|
else:
|
|
self.print_error('Unknown file type: %s', path)
|
|
|
|
def do_extract(self, args):
|
|
"""Extract archive contents
|
|
"""
|
|
repository = self.open_repository(args.archive)
|
|
manifest, key = Manifest.load(repository)
|
|
archive = Archive(repository, key, manifest, args.archive.archive,
|
|
numeric_owner=args.numeric_owner)
|
|
patterns = adjust_patterns(args.paths, args.excludes)
|
|
dirs = []
|
|
for item, peek in archive.iter_items(lambda item: not exclude_path(item[b'path'], patterns)):
|
|
while dirs and not item[b'path'].startswith(dirs[-1][b'path']):
|
|
archive.extract_item(dirs.pop(-1))
|
|
self.print_verbose(remove_surrogates(item[b'path']))
|
|
try:
|
|
if stat.S_ISDIR(item[b'mode']):
|
|
dirs.append(item)
|
|
archive.extract_item(item, restore_attrs=False)
|
|
else:
|
|
archive.extract_item(item, peek=peek)
|
|
except IOError as e:
|
|
self.print_error('%s: %s', remove_surrogates(item[b'path']), e)
|
|
|
|
while dirs:
|
|
archive.extract_item(dirs.pop(-1))
|
|
return self.exit_code
|
|
|
|
def do_delete(self, args):
|
|
"""Delete archive
|
|
"""
|
|
repository = self.open_repository(args.archive)
|
|
manifest, key = Manifest.load(repository)
|
|
cache = Cache(repository, key, manifest)
|
|
archive = Archive(repository, key, manifest, args.archive.archive, cache=cache)
|
|
archive.delete(cache)
|
|
return self.exit_code
|
|
|
|
def do_mount(self, args):
|
|
"""Mount archive as a FUSE fileystem
|
|
"""
|
|
try:
|
|
from attic.fuse import AtticOperations
|
|
except ImportError:
|
|
self.print_error('the "llfuse" module is required to use this feature')
|
|
return self.exit_code
|
|
|
|
if not os.path.isdir(args.mountpoint) or not os.access(args.mountpoint, os.R_OK | os.W_OK | os.X_OK):
|
|
self.print_error('%s: Mountpoint must be a writable directory' % args.mountpoint)
|
|
return self.exit_code
|
|
|
|
repository = self.open_repository(args.archive)
|
|
manifest, key = Manifest.load(repository)
|
|
self.print_verbose("Loading archive metadata...", newline=False)
|
|
archive = Archive(repository, key, manifest, args.archive.archive)
|
|
self.print_verbose('done')
|
|
operations = AtticOperations(key, repository, archive)
|
|
self.print_verbose("Mounting filesystem")
|
|
try:
|
|
operations.mount(args.mountpoint, args.options, args.foreground)
|
|
except RuntimeError:
|
|
# Relevant error message already printed to stderr by fuse
|
|
self.exit_code = 1
|
|
return self.exit_code
|
|
|
|
def do_list(self, args):
|
|
"""List archive or repository contents
|
|
"""
|
|
repository = self.open_repository(args.src)
|
|
manifest, key = Manifest.load(repository)
|
|
if args.src.archive:
|
|
tmap = {1: 'p', 2: 'c', 4: 'd', 6: 'b', 0o10: '-', 0o12: 'l', 0o14: 's'}
|
|
archive = Archive(repository, key, manifest, args.src.archive)
|
|
for item, _ in archive.iter_items():
|
|
type = tmap.get(item[b'mode'] // 4096, '?')
|
|
mode = format_file_mode(item[b'mode'])
|
|
size = 0
|
|
if type == '-':
|
|
try:
|
|
size = sum(size for _, size, _ in item[b'chunks'])
|
|
except KeyError:
|
|
pass
|
|
mtime = format_time(datetime.fromtimestamp(item[b'mtime'] / 10**9))
|
|
if b'source' in item:
|
|
if type == 'l':
|
|
extra = ' -> %s' % item[b'source']
|
|
else:
|
|
type = 'h'
|
|
extra = ' link to %s' % item[b'source']
|
|
else:
|
|
extra = ''
|
|
print('%s%s %-6s %-6s %8d %s %s%s' % (type, mode, item[b'user'] or item[b'uid'],
|
|
item[b'group'] or item[b'gid'], size, mtime,
|
|
remove_surrogates(item[b'path']), extra))
|
|
else:
|
|
for archive in sorted(Archive.list_archives(repository, key, manifest), key=attrgetter('ts')):
|
|
print('%-20s %s' % (archive.metadata[b'name'], to_localtime(archive.ts).strftime('%c')))
|
|
return self.exit_code
|
|
|
|
def do_verify(self, args):
|
|
"""Verify archive consistency
|
|
"""
|
|
repository = self.open_repository(args.archive)
|
|
manifest, key = Manifest.load(repository)
|
|
archive = Archive(repository, key, manifest, args.archive.archive)
|
|
patterns = adjust_patterns(args.paths, args.excludes)
|
|
|
|
def start_cb(item):
|
|
self.print_verbose('%s ...', remove_surrogates(item[b'path']), newline=False)
|
|
|
|
def result_cb(item, success):
|
|
if success:
|
|
self.print_verbose('OK')
|
|
else:
|
|
self.print_verbose('ERROR')
|
|
self.print_error('%s: verification failed' % remove_surrogates(item[b'path']))
|
|
for item, peek in archive.iter_items(lambda item: not exclude_path(item[b'path'], patterns)):
|
|
if stat.S_ISREG(item[b'mode']) and b'chunks' in item:
|
|
archive.verify_file(item, start_cb, result_cb, peek=peek)
|
|
return self.exit_code
|
|
|
|
def do_info(self, args):
|
|
"""Show archive details such as disk space used
|
|
"""
|
|
repository = self.open_repository(args.archive)
|
|
manifest, key = Manifest.load(repository)
|
|
cache = Cache(repository, key, manifest)
|
|
archive = Archive(repository, key, manifest, args.archive.archive, cache=cache)
|
|
stats = archive.calc_stats(cache)
|
|
print('Name:', archive.name)
|
|
print('Fingerprint: %s' % hexlify(archive.id).decode('ascii'))
|
|
print('Hostname:', archive.metadata[b'hostname'])
|
|
print('Username:', archive.metadata[b'username'])
|
|
print('Time: %s' % to_localtime(archive.ts).strftime('%c'))
|
|
print('Command line:', remove_surrogates(' '.join(archive.metadata[b'cmdline'])))
|
|
stats.print_()
|
|
return self.exit_code
|
|
|
|
def do_prune(self, args):
|
|
"""Prune repository archives according to specified rules
|
|
"""
|
|
repository = self.open_repository(args.repository)
|
|
manifest, key = Manifest.load(repository)
|
|
cache = Cache(repository, key, manifest)
|
|
archives = list(sorted(Archive.list_archives(repository, key, manifest, cache),
|
|
key=attrgetter('ts'), reverse=True))
|
|
if args.hourly + args.daily + args.weekly + args.monthly + args.yearly == 0:
|
|
self.print_error('At least one of the "hourly", "daily", "weekly", "monthly" or "yearly" '
|
|
'settings must be specified')
|
|
return 1
|
|
if args.prefix:
|
|
archives = [archive for archive in archives if archive.name.startswith(args.prefix)]
|
|
keep = []
|
|
if args.hourly:
|
|
keep += prune_split(archives, '%Y-%m-%d %H', args.hourly)
|
|
if args.daily:
|
|
keep += prune_split(archives, '%Y-%m-%d', args.daily, keep)
|
|
if args.weekly:
|
|
keep += prune_split(archives, '%G-%V', args.weekly, keep)
|
|
if args.monthly:
|
|
keep += prune_split(archives, '%Y-%m', args.monthly, keep)
|
|
if args.yearly:
|
|
keep += prune_split(archives, '%Y', args.yearly, keep)
|
|
|
|
keep.sort(key=attrgetter('ts'), reverse=True)
|
|
to_delete = [a for a in archives if a not in keep]
|
|
|
|
for archive in keep:
|
|
self.print_verbose('Keeping archive "%s"' % archive.name)
|
|
for archive in to_delete:
|
|
self.print_verbose('Pruning archive "%s"', archive.name)
|
|
archive.delete(cache)
|
|
return self.exit_code
|
|
|
|
def run(self, args=None):
|
|
keys_dir = get_keys_dir()
|
|
if not os.path.exists(keys_dir):
|
|
os.makedirs(keys_dir)
|
|
os.chmod(keys_dir, stat.S_IRWXU)
|
|
cache_dir = get_cache_dir()
|
|
if not os.path.exists(cache_dir):
|
|
os.makedirs(cache_dir)
|
|
os.chmod(cache_dir, stat.S_IRWXU)
|
|
common_parser = argparse.ArgumentParser(add_help=False)
|
|
common_parser.add_argument('-v', '--verbose', dest='verbose', action='store_true',
|
|
default=False,
|
|
help='verbose output')
|
|
|
|
parser = argparse.ArgumentParser(description='Attic - Deduplicated Backups')
|
|
subparsers = parser.add_subparsers(title='Available subcommands')
|
|
|
|
subparser = subparsers.add_parser('serve', parents=[common_parser])
|
|
subparser.set_defaults(func=self.do_serve)
|
|
|
|
subparser = subparsers.add_parser('init', parents=[common_parser],
|
|
description=self.do_init.__doc__)
|
|
subparser.set_defaults(func=self.do_init)
|
|
subparser.add_argument('repository',
|
|
type=location_validator(archive=False),
|
|
help='repository to create')
|
|
subparser.add_argument('--key-file', dest='keyfile',
|
|
action='store_true', default=False,
|
|
help='enable key file based encryption')
|
|
subparser.add_argument('--passphrase', dest='passphrase',
|
|
action='store_true', default=False,
|
|
help='enable passphrase based encryption')
|
|
|
|
subparser = subparsers.add_parser('change-passphrase', parents=[common_parser],
|
|
description=self.do_change_passphrase.__doc__)
|
|
subparser.set_defaults(func=self.do_change_passphrase)
|
|
subparser.add_argument('repository', type=location_validator(archive=False))
|
|
|
|
subparser = subparsers.add_parser('create', parents=[common_parser],
|
|
description=self.do_create.__doc__)
|
|
subparser.set_defaults(func=self.do_create)
|
|
subparser.add_argument('-s', '--stats', dest='stats',
|
|
action='store_true', default=False,
|
|
help='print statistics for the created archive')
|
|
subparser.add_argument('-e', '--exclude', dest='excludes',
|
|
type=ExcludePattern, action='append',
|
|
metavar="PATTERN", help='exclude paths matching PATTERN')
|
|
subparser.add_argument('-c', '--checkpoint-interval', dest='checkpoint_interval',
|
|
type=int, default=300, metavar='SECONDS',
|
|
help='write checkpointe ever SECONDS seconds (Default: 300)')
|
|
subparser.add_argument('--do-not-cross-mountpoints', dest='dontcross',
|
|
action='store_true', default=False,
|
|
help='do not cross mount points')
|
|
subparser.add_argument('--numeric-owner', dest='numeric_owner',
|
|
action='store_true', default=False,
|
|
help='only store numeric user and group identifiers')
|
|
subparser.add_argument('archive', metavar='ARCHIVE',
|
|
type=location_validator(archive=True),
|
|
help='archive to create')
|
|
subparser.add_argument('paths', metavar='PATH', nargs='+', type=str,
|
|
help='paths to archive')
|
|
|
|
subparser = subparsers.add_parser('extract', parents=[common_parser],
|
|
description=self.do_extract.__doc__)
|
|
subparser.set_defaults(func=self.do_extract)
|
|
subparser.add_argument('-e', '--exclude', dest='excludes',
|
|
type=ExcludePattern, action='append',
|
|
metavar="PATTERN", help='exclude paths matching PATTERN')
|
|
subparser.add_argument('--numeric-owner', dest='numeric_owner',
|
|
action='store_true', default=False,
|
|
help='only obey numeric user and group identifiers')
|
|
subparser.add_argument('archive', metavar='ARCHIVE',
|
|
type=location_validator(archive=True),
|
|
help='archive to extract')
|
|
subparser.add_argument('paths', metavar='PATH', nargs='*', type=str,
|
|
help='paths to extract')
|
|
|
|
subparser = subparsers.add_parser('delete', parents=[common_parser],
|
|
description=self.do_delete.__doc__)
|
|
subparser.set_defaults(func=self.do_delete)
|
|
subparser.add_argument('archive', metavar='ARCHIVE',
|
|
type=location_validator(archive=True),
|
|
help='archive to delete')
|
|
|
|
subparser = subparsers.add_parser('list', parents=[common_parser],
|
|
description=self.do_list.__doc__)
|
|
subparser.set_defaults(func=self.do_list)
|
|
subparser.add_argument('src', metavar='SRC', type=location_validator(),
|
|
help='repository/archive to list contents of')
|
|
|
|
subparser = subparsers.add_parser('mount', parents=[common_parser],
|
|
description=self.do_mount.__doc__)
|
|
subparser.set_defaults(func=self.do_mount)
|
|
subparser.add_argument('archive', metavar='ARCHIVE', type=location_validator(archive=True),
|
|
help='archive to mount')
|
|
subparser.add_argument('mountpoint', metavar='MOUNTPOINT', type=str,
|
|
help='where to mount filesystem')
|
|
subparser.add_argument('-f', '--foreground', dest='foreground',
|
|
action='store_true', default=False,
|
|
help='stay in foreground, do not daemonize')
|
|
subparser.add_argument('-o', dest='options', type=str,
|
|
help='Extra mount options')
|
|
|
|
subparser = subparsers.add_parser('verify', parents=[common_parser],
|
|
description=self.do_verify.__doc__)
|
|
subparser.set_defaults(func=self.do_verify)
|
|
subparser.add_argument('-e', '--exclude', dest='excludes',
|
|
type=ExcludePattern, action='append',
|
|
metavar="PATTERN", help='exclude paths matching PATTERN')
|
|
subparser.add_argument('archive', metavar='ARCHIVE',
|
|
type=location_validator(archive=True),
|
|
help='archive to verity integrity of')
|
|
subparser.add_argument('paths', metavar='PATH', nargs='*', type=str,
|
|
help='paths to verify')
|
|
|
|
subparser = subparsers.add_parser('info', parents=[common_parser],
|
|
description=self.do_info.__doc__)
|
|
subparser.set_defaults(func=self.do_info)
|
|
subparser.add_argument('archive', metavar='ARCHIVE',
|
|
type=location_validator(archive=True),
|
|
help='archive to display information about')
|
|
|
|
subparser = subparsers.add_parser('prune', parents=[common_parser],
|
|
description=self.do_prune.__doc__)
|
|
subparser.set_defaults(func=self.do_prune)
|
|
subparser.add_argument('-H', '--hourly', dest='hourly', type=int, default=0,
|
|
help='number of hourly archives to keep')
|
|
subparser.add_argument('-d', '--daily', dest='daily', type=int, default=0,
|
|
help='number of daily archives to keep')
|
|
subparser.add_argument('-w', '--weekly', dest='weekly', type=int, default=0,
|
|
help='number of daily archives to keep')
|
|
subparser.add_argument('-m', '--monthly', dest='monthly', type=int, default=0,
|
|
help='number of monthly archives to keep')
|
|
subparser.add_argument('-y', '--yearly', dest='yearly', type=int, default=0,
|
|
help='number of yearly archives to keep')
|
|
subparser.add_argument('-p', '--prefix', dest='prefix', type=str,
|
|
help='only consider archive names starting with this prefix')
|
|
subparser.add_argument('repository', metavar='REPOSITORY',
|
|
type=location_validator(archive=False),
|
|
help='repository to prune')
|
|
args = parser.parse_args(args or ['-h'])
|
|
self.verbose = args.verbose
|
|
return args.func(args)
|
|
|
|
|
|
def main():
|
|
archiver = Archiver()
|
|
try:
|
|
exit_code = archiver.run(sys.argv[1:])
|
|
except Repository.DoesNotExist:
|
|
archiver.print_error('Error: Repository not found')
|
|
exit_code = 1
|
|
except Repository.AlreadyExists:
|
|
archiver.print_error('Error: Repository already exists')
|
|
exit_code = 1
|
|
except Archive.AlreadyExists as e:
|
|
archiver.print_error('Error: Archive "%s" already exists', e)
|
|
exit_code = 1
|
|
except Archive.DoesNotExist as e:
|
|
archiver.print_error('Error: Archive "%s" does not exist', e)
|
|
exit_code = 1
|
|
except ConnectionClosed:
|
|
archiver.print_error('Connection closed by remote host')
|
|
exit_code = 1
|
|
except KeyboardInterrupt:
|
|
archiver.print_error('Error: Keyboard interrupt')
|
|
exit_code = 1
|
|
else:
|
|
if exit_code:
|
|
archiver.print_error('Exiting with failure status due to previous errors')
|
|
sys.exit(exit_code)
|
|
|
|
if __name__ == '__main__':
|
|
main()
|