def __init__(self, key, repository, manifest, archive):
super(AtticOperations, self).__init__()
self._inode_count = 0
self.key = key
self.repository = cache_if_remote(repository)
self.items = {}
self.parent = {}
self.contents = defaultdict(dict)
self.default_dir = {
b'mode': 0o40755,
b'mtime': int(time.time() * 1e9),
b'uid': os.getuid(),
b'gid': os.getgid()
}
self.pending_archives = {}
self.cache = ItemCache()
if archive:
self.process_archive(archive)
else:
# Create root inode
self.parent[1] = self.allocate_inode()
self.items[1] = self.default_dir
for archive_name in manifest.archives:
# Create archive placeholder inode
archive_inode = self.allocate_inode()
self.items[archive_inode] = self.default_dir
self.parent[archive_inode] = 1
self.contents[1][os.fsencode(archive_name)] = archive_inode
self.pending_archives[archive_inode] = Archive(
repository, key, manifest, archive_name)
def do_mount(self, args):
"""Mount archive or an entire repository 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.src)
manifest, key = Manifest.load(repository)
if args.src.archive:
archive = Archive(repository, key, manifest, args.src.archive)
else:
archive = None
operations = AtticOperations(key, repository, manifest, 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_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_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_create(self, args):
"""Create new archive"""
t0 = datetime.now()
repository = self.open_repository(args.archive, exclusive=True)
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:
path = os.path.normpath(path)
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
excludes = adjust_exclude_patterns(path, args.excludes)
self._process(archive, cache, excludes, args.exclude_caches,
skip_inodes, path, restrict_dev)
archive.save()
if args.stats:
t = datetime.now()
diff = t - t0
print('-' * 78)
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))
print('Number of files: %d' % archive.stats.nfiles)
archive.stats.print_('This archive:', cache)
print('-' * 78)
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_extract(self, args):
"""Extract archive contents"""
# be restrictive when restoring files, restore permissions later
if sys.getfilesystemencoding() == 'ascii':
print(
'Warning: File system encoding is "ascii", extracting non-ascii filenames will not be supported.'
)
os.umask(0o077)
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_include_patterns(args.paths, args.excludes)
dry_run = args.dry_run
strip_components = args.strip_components
dirs = []
for item in archive.iter_items(
lambda item: not exclude_path(item[b'path'], patterns),
preload=True):
orig_path = item[b'path']
if strip_components:
item[b'path'] = os.sep.join(
orig_path.split(os.sep)[strip_components:])
if not item[b'path']:
continue
if not args.dry_run:
while dirs and not item[b'path'].startswith(dirs[-1][b'path']):
archive.extract_item(dirs.pop(-1))
self.print_verbose(remove_surrogates(orig_path))
try:
if dry_run:
archive.extract_item(item, dry_run=True)
else:
if stat.S_ISDIR(item[b'mode']):
dirs.append(item)
archive.extract_item(item, restore_attrs=False)
else:
archive.extract_item(item)
except IOError as e:
self.print_error('%s: %s', remove_surrogates(orig_path), e)
if not args.dry_run:
while dirs:
archive.extract_item(dirs.pop(-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_delete(self, args):
"""Delete an existing archive"""
repository = self.open_repository(args.archive, exclusive=True)
manifest, key = Manifest.load(repository)
cache = Cache(repository, key, manifest)
archive = Archive(repository,
key,
manifest,
args.archive.archive,
cache=cache)
stats = Statistics()
archive.delete(stats)
manifest.write()
repository.commit()
cache.commit()
if args.stats:
stats.print_('Deleted data:', cache)
return self.exit_code
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)
dry_run = args.dry_run
strip_components = args.strip_components
dirs = []
for item in archive.iter_items(
lambda item: not exclude_path(item[b'path'], patterns),
preload=True):
orig_path = item[b'path']
if strip_components:
item[b'path'] = os.sep.join(
orig_path.split(os.sep)[strip_components:])
if not item[b'path']:
continue
if not args.dry_run:
while dirs and not item[b'path'].startswith(dirs[-1][b'path']):
archive.extract_item(dirs.pop(-1))
self.print_verbose(remove_surrogates(orig_path))
try:
if dry_run:
archive.extract_item(item, dry_run=True)
else:
if stat.S_ISDIR(item[b'mode']):
dirs.append(item)
archive.extract_item(item, restore_attrs=False)
else:
archive.extract_item(item)
except IOError as e:
self.print_error('%s: %s', remove_surrogates(orig_path), e)
if not args.dry_run:
while dirs:
archive.extract_item(dirs.pop(-1))
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:'******'username'])
print('Time: %s' % to_localtime(archive.ts).strftime('%c'))
print('Command line:',
remove_surrogates(' '.join(archive.metadata[b'cmdline'])))
print('Number of files: %d' % stats.nfiles)
stats.print_('This archive:', cache)
return self.exit_code
def open_archive(self, name):
repository = Repository(self.repository_path)
manifest, key = Manifest.load(repository)
archive = Archive(repository, key, manifest, name)
return archive, repository
