def handle_sigterm(signum, frame):
global io_loop
debug1('\nbup-web: signal %d received\n' % signum)
log('Shutdown requested\n')
if not io_loop:
sys.exit(0)
io_loop.stop()
def _suggest_packs(self):
ob = self._busy
if ob:
assert(ob == 'receive-objects-v2')
self.conn.write('\xff\xff\xff\xff') # suspend receive-objects-v2
suggested = []
for line in linereader(self.conn):
if not line:
break
debug2('%s\n' % line)
if line.startswith('index '):
idx = line[6:]
debug1('client: received index suggestion: %s\n'
% git.shorten_hash(idx))
suggested.append(idx)
else:
assert(line.endswith('.idx'))
debug1('client: completed writing pack, idx: %s\n'
% git.shorten_hash(line))
suggested.append(line)
self.check_ok()
if ob:
self._busy = None
idx = None
for idx in suggested:
self.sync_index(idx)
git.auto_midx(self.cachedir)
if ob:
self._busy = ob
self.conn.write('%s\n' % ob)
return idx
def resolve_branch_dest(spec, src, dest_repo, fatal):
# Resulting dest must be treeish, or not exist.
if not spec.dest:
# Pick a default dest.
if src.type == 'branch':
spec = spec._replace(dest=spec.src)
elif src.type == 'save':
spec = spec._replace(dest=get_save_branch(spec.src))
elif src.path.startswith('/.tag/'): # Dest defaults to the same.
spec = spec._replace(dest=spec.src)
spec_args = '%s %s' % (spec.argopt, spec.argval)
if not spec.dest:
fatal('no destination (implicit or explicit) for %r', spec_args)
dest = find_vfs_item(spec.dest, dest_repo)
if dest:
if dest.type == 'commit':
fatal('destination for %r is a tagged commit, not a branch'
% spec_args)
if dest.type != 'branch':
fatal('destination for %r is a %s, not a branch'
% (spec_args, dest.type))
else:
dest = default_loc._replace(path=cleanup_vfs_path(spec.dest))
if dest.path.startswith('/.'):
fatal('destination for %r must be a valid branch name' % spec_args)
debug1('dest: %s\n' % loc_desc(dest))
return spec, dest
def _init_session(reinit_with_new_repopath=None):
if reinit_with_new_repopath is None and git.repodir:
return
git.check_repo_or_die(reinit_with_new_repopath)
# OK. we now know the path is a proper repository. Record this path in the
# environment so that subprocesses inherit it and know where to operate.
os.environ["BUP_DIR"] = git.repodir
debug1("bup server: bupdir is %r\n" % git.repodir)
_set_mode()
def __init__(self, filename, f=None, readwrite=False, expected=-1):
self.name = filename
self.rwfile = None
self.map = None
assert(filename.endswith('.bloom'))
if readwrite:
assert(expected > 0)
self.rwfile = f = f or open(filename, 'r+b')
f.seek(0)
# Decide if we want to mmap() the pages as writable ('immediate'
# write) or else map them privately for later writing back to
# the file ('delayed' write). A bloom table's write access
# pattern is such that we dirty almost all the pages after adding
# very few entries. But the table is so big that dirtying
# *all* the pages often exceeds Linux's default
# /proc/sys/vm/dirty_ratio or /proc/sys/vm/dirty_background_ratio,
# thus causing it to start flushing the table before we're
# finished... even though there's more than enough space to
# store the bloom table in RAM.
#
# To work around that behaviour, if we calculate that we'll
# probably end up touching the whole table anyway (at least
# one bit flipped per memory page), let's use a "private" mmap,
# which defeats Linux's ability to flush it to disk. Then we'll
# flush it as one big lump during close().
pages = os.fstat(f.fileno()).st_size / 4096 * 5 # assume k=5
self.delaywrite = expected > pages
debug1('bloom: delaywrite=%r\n' % self.delaywrite)
if self.delaywrite:
self.map = mmap_readwrite_private(self.rwfile, close=False)
else:
self.map = mmap_readwrite(self.rwfile, close=False)
else:
self.rwfile = None
f = f or open(filename, 'rb')
self.map = mmap_read(f)
got = str(self.map[0:4])
if got != 'BLOM':
log('Warning: invalid BLOM header (%r) in %r\n' % (got, filename))
return self._init_failed()
ver = struct.unpack('!I', self.map[4:8])[0]
if ver < BLOOM_VERSION:
log('Warning: ignoring old-style (v%d) bloom %r\n'
% (ver, filename))
return self._init_failed()
if ver > BLOOM_VERSION:
log('Warning: ignoring too-new (v%d) bloom %r\n'
% (ver, filename))
return self._init_failed()
self.bits, self.k, self.entries = struct.unpack('!HHI', self.map[8:16])
idxnamestr = str(self.map[16 + 2**self.bits:])
if idxnamestr:
self.idxnames = idxnamestr.split('\0')
else:
self.idxnames = []
def resolve_src(spec, src_repo):
src = find_vfs_item(spec.src, src_repo)
spec_args = spec_msg(spec)
if not src:
misuse('cannot find source for %s' % spec_args)
if src.type == 'root':
misuse('cannot fetch entire repository for %s' % spec_args)
if src.type == 'tags':
misuse('cannot fetch entire /.tag directory for %s' % spec_args)
debug1('src: %s\n' % loc_desc(src))
return src
def resolve_src(spec, src_repo, fatal):
src = find_vfs_item(spec.src, src_repo)
spec_args = '%s %s' % (spec.argopt, spec.argval)
if not src:
fatal('cannot find source for %r' % spec_args)
if src.hash == vfs.EMPTY_SHA.encode('hex'):
fatal('cannot find source for %r (no hash)' % spec_args)
if src.type == 'root':
fatal('cannot fetch entire repository for %r' % spec_args)
debug1('src: %s\n' % loc_desc(src))
return src
def init_session(self, repo_dir=None):
if self.repo and repo_dir:
self.repo.close()
self.repo = None
self.suspended = False
if not self.repo:
self.repo = self._backend(repo_dir)
self.dumb_server_mode = self.repo.config(b'bup.dumb-server',
opttype='bool')
debug1('bup server: bupdir is %r\n' % self.repo.repo_dir)
debug1('bup server: serving in %s mode\n' %
(self.dumb_server_mode and 'dumb' or 'smart'))
def handler(signum, frame):
debug1('\nbup: signal %d received\n' % signum)
if not p or not forward_signals:
return
if signum != signal.SIGTSTP:
os.kill(p.pid, signum)
else: # SIGTSTP: stop the child, then ourselves.
os.kill(p.pid, signal.SIGSTOP)
signal.signal(signal.SIGTSTP, signal.SIG_DFL)
os.kill(os.getpid(), signal.SIGTSTP)
# Back from suspend -- reestablish the handler.
signal.signal(signal.SIGTSTP, handler)
ret = 94
def handler(signum, frame):
debug1('\nbup: signal %d received\n' % signum)
if not p or not forward_signals:
return
if signum != signal.SIGTSTP:
os.kill(p.pid, signum)
else: # SIGTSTP: stop the child, then ourselves.
os.kill(p.pid, signal.SIGSTOP)
signal.signal(signal.SIGTSTP, signal.SIG_DFL)
os.kill(os.getpid(), signal.SIGTSTP)
# Back from suspend -- reestablish the handler.
signal.signal(signal.SIGTSTP, handler)
ret = 94
def main(argv):
o = options.Options(optspec)
opt, flags, extra = o.parse_bytes(argv[1:])
opt.output = argv_bytes(opt.output) if opt.output else None
if extra and (opt.auto or opt.force):
o.fatal("you can't use -f/-a and also provide filenames")
if opt.check and (not extra and not opt.auto):
o.fatal("if using --check, you must provide filenames or -a")
git.check_repo_or_die()
if opt.max_files < 0:
opt.max_files = max_files()
assert(opt.max_files >= 5)
path = opt.dir and argv_bytes(opt.dir) or git.repo(b'objects/pack')
extra = [argv_bytes(x) for x in extra]
if opt.check:
# check existing midx files
if extra:
midxes = extra
else:
debug1('midx: scanning %s\n' % path)
midxes = glob.glob(os.path.join(path, b'*.midx'))
for name in midxes:
check_midx(name)
if not saved_errors:
log('All tests passed.\n')
else:
if extra:
sys.stdout.flush()
do_midx(path, opt.output, extra, b'',
byte_stream(sys.stdout), auto=opt.auto, force=opt.force,
print_names=opt.print)
elif opt.auto or opt.force:
sys.stdout.flush()
debug1('midx: scanning %s\n' % path_msg(path))
do_midx_dir(path, opt.output, byte_stream(sys.stdout),
auto=opt.auto, force=opt.force,
max_files=opt.max_files)
else:
o.fatal("you must use -f or -a or provide input filenames")
if saved_errors:
log('WARNING: %d errors encountered.\n' % len(saved_errors))
sys.exit(1)
def _init_session(reinit_with_new_repopath=None):
global repo
if reinit_with_new_repopath is None and git.repodir:
if not repo:
repo = LocalRepo()
return
git.check_repo_or_die(reinit_with_new_repopath)
if repo:
repo.close()
repo = LocalRepo()
# OK. we now know the path is a proper repository. Record this path in the
# environment so that subprocesses inherit it and know where to operate.
os.environ['BUP_DIR'] = git.repodir
debug1('bup server: bupdir is %r\n' % git.repodir)
_set_mode()
def _init_session(reinit_with_new_repopath=None):
global repo
if reinit_with_new_repopath is None and git.repodir:
if not repo:
repo = LocalRepo()
return
git.check_repo_or_die(reinit_with_new_repopath)
if repo:
repo.close()
repo = LocalRepo()
# OK. we now know the path is a proper repository. Record this path in the
# environment so that subprocesses inherit it and know where to operate.
environ[b'BUP_DIR'] = git.repodir
debug1('bup server: bupdir is %s\n' % path_msg(git.repodir))
_set_mode()
def do_midx_dir(path, outfilename):
already = {}
sizes = {}
if opt.force and not opt.auto:
midxs = [] # don't use existing midx files
else:
midxs = glob.glob('%s/*.midx' % path)
contents = {}
for mname in midxs:
m = git.open_idx(mname)
contents[mname] = [('%s/%s' % (path,i)) for i in m.idxnames]
sizes[mname] = len(m)
# sort the biggest+newest midxes first, so that we can eliminate
# smaller (or older) redundant ones that come later in the list
midxs.sort(key=lambda ix: (-sizes[ix], -xstat.stat(ix).st_mtime))
for mname in midxs:
any = 0
for iname in contents[mname]:
if not already.get(iname):
already[iname] = 1
any = 1
if not any:
debug1('%r is redundant\n' % mname)
unlink(mname)
already[mname] = 1
midxs = [k for k in midxs if not already.get(k)]
idxs = [k for k in glob.glob('%s/*.idx' % path) if not already.get(k)]
for iname in idxs:
i = git.open_idx(iname)
sizes[iname] = len(i)
all = [(sizes[n],n) for n in (midxs + idxs)]
# FIXME: what are the optimal values? Does this make sense?
DESIRED_HWM = opt.force and 1 or 5
DESIRED_LWM = opt.force and 1 or 2
existed = dict((name,1) for sz,name in all)
debug1('midx: %d indexes; want no more than %d.\n'
% (len(all), DESIRED_HWM))
if len(all) <= DESIRED_HWM:
debug1('midx: nothing to do.\n')
while len(all) > DESIRED_HWM:
all.sort()
part1 = [name for sz,name in all[:len(all)-DESIRED_LWM+1]]
part2 = all[len(all)-DESIRED_LWM+1:]
all = list(do_midx_group(path, outfilename, part1)) + part2
if len(all) > DESIRED_HWM:
debug1('\nStill too many indexes (%d > %d). Merging again.\n'
% (len(all), DESIRED_HWM))
if opt['print']:
for sz,name in all:
if not existed.get(name):
print name
def do_midx_dir(path, outfilename):
already = {}
sizes = {}
if opt.force and not opt.auto:
midxs = [] # don't use existing midx files
else:
midxs = glob.glob('%s/*.midx' % path)
contents = {}
for mname in midxs:
m = git.open_idx(mname)
contents[mname] = [('%s/%s' % (path, i)) for i in m.idxnames]
sizes[mname] = len(m)
# sort the biggest+newest midxes first, so that we can eliminate
# smaller (or older) redundant ones that come later in the list
midxs.sort(key=lambda ix: (-sizes[ix], -xstat.stat(ix).st_mtime))
for mname in midxs:
any = 0
for iname in contents[mname]:
if not already.get(iname):
already[iname] = 1
any = 1
if not any:
debug1('%r is redundant\n' % mname)
unlink(mname)
already[mname] = 1
midxs = [k for k in midxs if not already.get(k)]
idxs = [k for k in glob.glob('%s/*.idx' % path) if not already.get(k)]
for iname in idxs:
i = git.open_idx(iname)
sizes[iname] = len(i)
all = [(sizes[n], n) for n in (midxs + idxs)]
# FIXME: what are the optimal values? Does this make sense?
DESIRED_HWM = opt.force and 1 or 5
DESIRED_LWM = opt.force and 1 or 2
existed = dict((name, 1) for sz, name in all)
debug1('midx: %d indexes; want no more than %d.\n' %
(len(all), DESIRED_HWM))
if len(all) <= DESIRED_HWM:
debug1('midx: nothing to do.\n')
while len(all) > DESIRED_HWM:
all.sort()
part1 = [name for sz, name in all[:len(all) - DESIRED_LWM + 1]]
part2 = all[len(all) - DESIRED_LWM + 1:]
all = list(do_midx_group(path, outfilename, part1)) + part2
if len(all) > DESIRED_HWM:
debug1('\nStill too many indexes (%d > %d). Merging again.\n' %
(len(all), DESIRED_HWM))
if opt['print']:
for sz, name in all:
if not existed.get(name):
print name
def main(argv):
# Give the subcommand exclusive access to stdin.
orig_stdin = os.dup(0)
devnull = os.open(os.devnull, os.O_RDONLY)
os.dup2(devnull, 0)
os.close(devnull)
o = options.Options(optspec)
opt, flags, extra = o.parse_bytes(argv[1:])
if len(extra) < 1:
o.fatal('command is required')
subcmd = extra
debug2('bup mux: starting %r\n' % (extra, ))
outr, outw = os.pipe()
errr, errw = os.pipe()
def close_fds():
os.close(outr)
os.close(errr)
p = subprocess.Popen(subcmd,
stdin=orig_stdin,
stdout=outw,
stderr=errw,
close_fds=False,
preexec_fn=close_fds)
os.close(outw)
os.close(errw)
sys.stdout.flush()
out = byte_stream(sys.stdout)
out.write(b'BUPMUX')
out.flush()
mux(p, out.fileno(), outr, errr)
os.close(outr)
os.close(errr)
prv = p.wait()
if prv:
debug1('%s exited with code %d\n' % (extra[0], prv))
debug1('bup mux: done\n')
sys.exit(prv)
def create(name, expected, delaywrite=None, f=None, k=None):
"""Create and return a bloom filter for `expected` entries."""
bits = int(math.floor(math.log(expected * MAX_BITS_EACH / 8, 2)))
k = k or ((bits <= MAX_BLOOM_BITS[5]) and 5 or 4)
if bits > MAX_BLOOM_BITS[k]:
log('bloom: warning, max bits exceeded, non-optimal\n')
bits = MAX_BLOOM_BITS[k]
debug1('bloom: using 2^%d bytes and %d hash functions\n' % (bits, k))
f = f or open(name, 'w+b')
f.write('BLOM')
f.write(struct.pack('!IHHI', BLOOM_VERSION, bits, k, 0))
assert (f.tell() == 16)
# NOTE: On some systems this will not extend+zerofill, but it does on
# darwin, linux, bsd and solaris.
f.truncate(16 + 2**bits)
f.seek(0)
if delaywrite != None and not delaywrite:
# tell it to expect very few objects, forcing a direct mmap
expected = 1
return ShaBloom(name, f=f, readwrite=True, expected=expected)
def create(name, expected, delaywrite=None, f=None, k=None):
"""Create and return a bloom filter for `expected` entries."""
bits = int(math.floor(math.log(expected*MAX_BITS_EACH/8,2)))
k = k or ((bits <= MAX_BLOOM_BITS[5]) and 5 or 4)
if bits > MAX_BLOOM_BITS[k]:
log('bloom: warning, max bits exceeded, non-optimal\n')
bits = MAX_BLOOM_BITS[k]
debug1('bloom: using 2^%d bytes and %d hash functions\n' % (bits, k))
f = f or open(name, 'w+b')
f.write('BLOM')
f.write(struct.pack('!IHHI', BLOOM_VERSION, bits, k, 0))
assert(f.tell() == 16)
# NOTE: On some systems this will not extend+zerofill, but it does on
# darwin, linux, bsd and solaris.
f.truncate(16+2**bits)
f.seek(0)
if delaywrite != None and not delaywrite:
# tell it to expect very few objects, forcing a direct mmap
expected = 1
return ShaBloom(name, f=f, readwrite=True, expected=expected)
def sync_indexes(self):
conn = self.conn
mkdirp(self.cachedir)
# All cached idxs are extra until proven otherwise
extra = set()
for f in os.listdir(self.cachedir):
debug1(path_msg(f) + '\n')
if f.endswith(b'.idx'):
extra.add(f)
needed = set()
for idx, load in self._list_indexes():
if load:
# If the server requests that we load an idx and we don't
# already have a copy of it, it is needed
needed.add(idx)
# Any idx that the server has heard of is proven not extra
extra.discard(idx)
debug1('client: removing extra indexes: %s\n' % extra)
for idx in extra:
os.unlink(os.path.join(self.cachedir, idx))
debug1('client: server requested load of: %s\n' % needed)
for idx in needed:
self.sync_index(idx)
git.auto_midx(self.cachedir)
def resolve_targets(specs, src_repo, src_vfs, src_dir, src_cp, dest_repo, fatal):
resolved_items = []
common_args = (src_repo, src_vfs, src_dir, src_cp, dest_repo, fatal)
for spec in specs:
debug1('initial-spec: %s\n' % str(spec))
if spec.method == 'ff':
resolved_items.append(resolve_ff(spec, *common_args))
elif spec.method == 'append':
resolved_items.append(resolve_append(spec, *common_args))
elif spec.method in ('pick', 'force-pick'):
resolved_items.append(resolve_pick(spec, *common_args))
elif spec.method == 'new-tag':
resolved_items.append(resolve_new_tag(spec, *common_args))
elif spec.method == 'overwrite':
resolved_items.append(resolve_overwrite(spec, *common_args))
elif spec.method == 'unnamed':
resolved_items.append(resolve_unnamed(spec, *common_args))
else: # Should be impossible -- prevented by the option parser.
assert(False)
# FIXME: check for prefix overlap? i.e.:
# bup get --ff foo --ff baz:foo/bar
# bup get --new-tag .tag/foo --new-tag bar:.tag/foo/bar
# Now that we have all the items, check for duplicate tags.
tags_targeted = set()
for item in resolved_items:
dest_path = item.dest and item.dest.path
if dest_path:
assert(dest_path.startswith('/'))
if dest_path.startswith('/.tag/'):
if dest_path in tags_targeted:
if item.spec.method not in ('overwrite', 'force-pick'):
spec_args = '%s %s' % (item.spec.argopt,
item.spec.argval)
fatal('cannot overwrite tag %r via %r' \
% (dest_path, spec_args))
else:
tags_targeted.add(dest_path)
return resolved_items
def sync_indexes(self):
self._require_command(b'list-indexes')
self.check_busy()
conn = self.conn
mkdirp(self.cachedir)
# All cached idxs are extra until proven otherwise
extra = set()
for f in os.listdir(self.cachedir):
debug1(path_msg(f) + '\n')
if f.endswith(b'.idx'):
extra.add(f)
needed = set()
conn.write(b'list-indexes\n')
for line in linereader(conn):
if not line:
break
assert(line.find(b'/') < 0)
parts = line.split(b' ')
idx = parts[0]
if len(parts) == 2 and parts[1] == b'load' and idx not in extra:
# If the server requests that we load an idx and we don't
# already have a copy of it, it is needed
needed.add(idx)
# Any idx that the server has heard of is proven not extra
extra.discard(idx)
self.check_ok()
debug1('client: removing extra indexes: %s\n' % extra)
for idx in extra:
os.unlink(os.path.join(self.cachedir, idx))
debug1('client: server requested load of: %s\n' % needed)
for idx in needed:
self.sync_index(idx)
git.auto_midx(self.cachedir)
def resolve_targets(specs, src_repo, dest_repo):
resolved_items = []
common_args = src_repo, dest_repo
for spec in specs:
debug1('initial-spec: %s\n' % str(spec))
if spec.method == 'ff':
resolved_items.append(resolve_ff(spec, *common_args))
elif spec.method == 'append':
resolved_items.append(resolve_append(spec, *common_args))
elif spec.method in ('pick', 'force-pick'):
resolved_items.append(resolve_pick(spec, *common_args))
elif spec.method == 'new-tag':
resolved_items.append(resolve_new_tag(spec, *common_args))
elif spec.method == 'replace':
resolved_items.append(resolve_replace(spec, *common_args))
elif spec.method == 'unnamed':
resolved_items.append(resolve_unnamed(spec, *common_args))
else: # Should be impossible -- prevented by the option parser.
assert (False)
# FIXME: check for prefix overlap? i.e.:
# bup get --ff foo --ff: baz foo/bar
# bup get --new-tag .tag/foo --new-tag: bar .tag/foo/bar
# Now that we have all the items, check for duplicate tags.
tags_targeted = set()
for item in resolved_items:
dest_path = item.dest and item.dest.path
if dest_path:
assert (dest_path.startswith('/'))
if dest_path.startswith('/.tag/'):
if dest_path in tags_targeted:
if item.spec.method not in ('replace', 'force-pick'):
spec_args = '%s %s' % (item.spec.argopt,
item.spec.argval)
misuse('cannot overwrite tag %r via %r' \
% (dest_path, spec_args))
else:
tags_targeted.add(dest_path)
return resolved_items
def sync_indexes(self):
self.check_busy()
conn = self.conn
mkdirp(self.cachedir)
# All cached idxs are extra until proven otherwise
extra = set()
for f in os.listdir(self.cachedir):
debug1('%s\n' % f)
if f.endswith('.idx'):
extra.add(f)
needed = set()
conn.write('list-indexes\n')
for line in linereader(conn):
if not line:
break
assert(line.find('/') < 0)
parts = line.split(' ')
idx = parts[0]
if len(parts) == 2 and parts[1] == 'load' and idx not in extra:
# If the server requests that we load an idx and we don't
# already have a copy of it, it is needed
needed.add(idx)
# Any idx that the server has heard of is proven not extra
extra.discard(idx)
self.check_ok()
debug1('client: removing extra indexes: %s\n' % extra)
for idx in extra:
os.unlink(os.path.join(self.cachedir, idx))
debug1('client: server requested load of: %s\n' % needed)
for idx in needed:
self.sync_index(idx)
git.auto_midx(self.cachedir)
def _recursive_dirlist(prepend, xdev, bup_dir=None,
excluded_paths=None,
exclude_rxs=None):
for (name,pst) in _dirlist():
path = prepend + name
if excluded_paths:
if os.path.normpath(path) in excluded_paths:
debug1('Skipping %r: excluded.\n' % path)
continue
if exclude_rxs and should_rx_exclude_path(path, exclude_rxs):
continue
if name.endswith('/'):
if bup_dir != None:
if os.path.normpath(path) == bup_dir:
debug1('Skipping BUP_DIR.\n')
continue
if xdev != None and pst.st_dev != xdev:
debug1('Skipping contents of %r: different filesystem.\n' % path)
else:
try:
OsFile(name).fchdir()
except OSError as e:
add_error('%s: %s' % (prepend, e))
else:
for i in _recursive_dirlist(prepend=prepend+name, xdev=xdev,
bup_dir=bup_dir,
excluded_paths=excluded_paths,
exclude_rxs=exclude_rxs):
yield i
os.chdir('..')
yield (path, pst)
def _recursive_dirlist(prepend,
xdev,
bup_dir=None,
excluded_paths=None,
exclude_rxs=None):
for (name, pst) in _dirlist():
path = prepend + name
if excluded_paths:
if os.path.normpath(path) in excluded_paths:
debug1('Skipping %r: excluded.\n' % path)
continue
if exclude_rxs and should_rx_exclude_path(path, exclude_rxs):
continue
if name.endswith('/'):
if bup_dir != None:
if os.path.normpath(path) == bup_dir:
debug1('Skipping BUP_DIR.\n')
continue
if xdev != None and pst.st_dev != xdev:
debug1('Skipping contents of %r: different filesystem.\n' %
path)
else:
try:
OsFile(name).fchdir()
except OSError as e:
add_error('%s: %s' % (prepend, e))
else:
for i in _recursive_dirlist(prepend=prepend + name,
xdev=xdev,
bup_dir=bup_dir,
excluded_paths=excluded_paths,
exclude_rxs=exclude_rxs):
yield i
os.chdir('..')
yield (path, pst)
def receive_objects_v2(conn, junk):
global suspended_w
_init_session()
suggested = set()
if suspended_w:
w = suspended_w
suspended_w = None
else:
if dumb_server_mode:
w = git.PackWriter(objcache_maker=None)
else:
w = git.PackWriter()
while 1:
ns = conn.read(4)
if not ns:
w.abort()
raise Exception('object read: expected length header, got EOF\n')
n = struct.unpack('!I', ns)[0]
#debug2('expecting %d bytes\n' % n)
if not n:
debug1('bup server: received %d object%s.\n'
% (w.count, w.count!=1 and "s" or ''))
fullpath = w.close(run_midx=not dumb_server_mode)
if fullpath:
(dir, name) = os.path.split(fullpath)
conn.write('%s.idx\n' % name)
conn.ok()
return
elif n == 0xffffffff:
debug2('bup server: receive-objects suspended.\n')
suspended_w = w
conn.ok()
return
shar = conn.read(20)
crcr = struct.unpack('!I', conn.read(4))[0]
n -= 20 + 4
buf = conn.read(n) # object sizes in bup are reasonably small
#debug2('read %d bytes\n' % n)
_check(w, n, len(buf), 'object read: expected %d bytes, got %d\n')
if not dumb_server_mode:
oldpack = w.exists(shar, want_source=True)
if oldpack:
assert(not oldpack == True)
assert(oldpack.endswith('.idx'))
(dir,name) = os.path.split(oldpack)
if not (name in suggested):
debug1("bup server: suggesting index %s\n"
% git.shorten_hash(name))
debug1("bup server: because of object %s\n"
% shar.encode('hex'))
conn.write('index %s\n' % name)
suggested.add(name)
continue
nw, crc = w._raw_write((buf,), sha=shar)
_check(w, crcr, crc, 'object read: expected crc %d, got %d\n')
def receive_objects_v2(conn, junk):
global suspended_w
_init_session()
suggested = set()
if suspended_w:
w = suspended_w
suspended_w = None
else:
if dumb_server_mode:
w = git.PackWriter(objcache_maker=None)
else:
w = git.PackWriter()
while 1:
ns = conn.read(4)
if not ns:
w.abort()
raise Exception('object read: expected length header, got EOF\n')
n = struct.unpack('!I', ns)[0]
#debug2('expecting %d bytes\n' % n)
if not n:
debug1('bup server: received %d object%s.\n'
% (w.count, w.count!=1 and "s" or ''))
fullpath = w.close(run_midx=not dumb_server_mode)
if fullpath:
(dir, name) = os.path.split(fullpath)
conn.write('%s.idx\n' % name)
conn.ok()
return
elif n == 0xffffffff:
debug2('bup server: receive-objects suspended.\n')
suspended_w = w
conn.ok()
return
shar = conn.read(20)
crcr = struct.unpack('!I', conn.read(4))[0]
n -= 20 + 4
buf = conn.read(n) # object sizes in bup are reasonably small
#debug2('read %d bytes\n' % n)
_check(w, n, len(buf), 'object read: expected %d bytes, got %d\n')
if not dumb_server_mode:
oldpack = w.exists(shar, want_source=True)
if oldpack:
assert(not oldpack == True)
assert(oldpack.endswith('.idx'))
(dir,name) = os.path.split(oldpack)
if not (name in suggested):
debug1("bup server: suggesting index %s\n"
% git.shorten_hash(name))
debug1("bup server: because of object %s\n"
% shar.encode('hex'))
conn.write('index %s\n' % name)
suggested.add(name)
continue
nw, crc = w._raw_write((buf,), sha=shar)
_check(w, crcr, crc, 'object read: expected crc %d, got %d\n')
def _recursive_dirlist(prepend, xdev, bup_dir=None,
excluded_paths=None,
exclude_rxs=None,
xdev_exceptions=frozenset()):
for (name,pst) in _dirlist():
path = prepend + name
if excluded_paths:
if os.path.normpath(path) in excluded_paths:
debug1('Skipping %r: excluded.\n' % path_msg(path))
continue
if exclude_rxs and should_rx_exclude_path(path, exclude_rxs):
continue
if name.endswith(b'/'):
if bup_dir != None:
if os.path.normpath(path) == bup_dir:
debug1('Skipping BUP_DIR.\n')
continue
if xdev != None and pst.st_dev != xdev \
and path not in xdev_exceptions:
debug1('Skipping contents of %r: different filesystem.\n'
% path_msg(path))
else:
try:
with finalized_fd(name) as fd:
os.fchdir(fd)
except OSError as e:
add_error('%s: %s' % (prepend, e))
else:
for i in _recursive_dirlist(prepend=prepend+name, xdev=xdev,
bup_dir=bup_dir,
excluded_paths=excluded_paths,
exclude_rxs=exclude_rxs,
xdev_exceptions=xdev_exceptions):
yield i
os.chdir(b'..')
yield (path, pst)
def _do_midx(outdir, outfilename, infilenames, prefixstr):
global _first
if not outfilename:
assert(outdir)
sum = Sha1('\0'.join(infilenames)).hexdigest()
outfilename = '%s/midx-%s.midx' % (outdir, sum)
inp = []
total = 0
allfilenames = []
midxs = []
try:
for name in infilenames:
ix = git.open_idx(name)
midxs.append(ix)
inp.append((
ix.map,
len(ix),
ix.sha_ofs,
isinstance(ix, midx.PackMidx) and ix.which_ofs or 0,
len(allfilenames),
))
for n in ix.idxnames:
allfilenames.append(os.path.basename(n))
total += len(ix)
inp.sort(lambda x,y: cmp(str(y[0][y[2]:y[2]+20]),str(x[0][x[2]:x[2]+20])))
if not _first: _first = outdir
dirprefix = (_first != outdir) and git.repo_rel(outdir)+': ' or ''
debug1('midx: %s%screating from %d files (%d objects).\n'
% (dirprefix, prefixstr, len(infilenames), total))
if (opt.auto and (total < 1024 and len(infilenames) < 3)) \
or ((opt.auto or opt.force) and len(infilenames) < 2) \
or (opt.force and not total):
debug1('midx: nothing to do.\n')
return
pages = int(total/SHA_PER_PAGE) or 1
bits = int(math.ceil(math.log(pages, 2)))
entries = 2**bits
debug1('midx: table size: %d (%d bits)\n' % (entries*4, bits))
unlink(outfilename)
with atomically_replaced_file(outfilename, 'wb') as f:
f.write('MIDX')
f.write(struct.pack('!II', midx.MIDX_VERSION, bits))
assert(f.tell() == 12)
f.truncate(12 + 4*entries + 20*total + 4*total)
f.flush()
fdatasync(f.fileno())
fmap = mmap_readwrite(f, close=False)
count = merge_into(fmap, bits, total, inp)
del fmap # Assume this calls msync() now.
f.seek(0, os.SEEK_END)
f.write('\0'.join(allfilenames))
finally:
for ix in midxs:
if isinstance(ix, midx.PackMidx):
ix.close()
midxs = None
inp = None
# This is just for testing (if you enable this, don't clear inp above)
if 0:
p = midx.PackMidx(outfilename)
assert(len(p.idxnames) == len(infilenames))
print p.idxnames
assert(len(p) == total)
for pe, e in p, git.idxmerge(inp, final_progress=False):
pin = pi.next()
assert(i == pin)
assert(p.exists(i))
return total, outfilename
git.check_repo_or_die()
if opt.max_files < 0:
opt.max_files = max_files()
assert(opt.max_files >= 5)
if opt.check:
# check existing midx files
if extra:
midxes = extra
else:
midxes = []
paths = opt.dir and [opt.dir] or git.all_packdirs()
for path in paths:
debug1('midx: scanning %s\n' % path)
midxes += glob.glob(os.path.join(path, '*.midx'))
for name in midxes:
check_midx(name)
if not saved_errors:
log('All tests passed.\n')
else:
if extra:
do_midx(git.repo('objects/pack'), opt.output, extra, '')
elif opt.auto or opt.force:
paths = opt.dir and [opt.dir] or git.all_packdirs()
for path in paths:
debug1('midx: scanning %s\n' % path)
do_midx_dir(path, opt.output)
else:
o.fatal("you must use -f or -a or provide input filenames")
dest_repo, o.fatal)
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,
'overwrite': handle_overwrite,
'unnamed': handle_unnamed}
for item in target_items:
debug1('get-spec: %s\n' % str(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('/.tag/'):
dest_ref = 'refs/tags/%s' % dest_path[6:]
else:
dest_ref = '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
sys.exit(1)
tag_file = 'refs/tags/%s' % opt.delete
git.delete_ref(tag_file)
sys.exit(0)
if not extra:
for t in tags:
print t
sys.exit(0)
elif len(extra) < 2:
o.fatal('no commit ref or hash given.')
(tag_name, commit) = extra[:2]
if not tag_name:
o.fatal("tag name must not be empty.")
debug1("args: tag name = %s; commit = %s\n" % (tag_name, commit))
if tag_name in tags and not opt.force:
log("bup: error: tag '%s' already exists\n" % tag_name)
sys.exit(1)
if tag_name.startswith('.'):
o.fatal("'%s' is not a valid tag name." % tag_name)
try:
hash = git.rev_parse(commit)
except git.GitError as e:
log("bup: error: %s" % e)
sys.exit(2)
if not hash:
def receive_objects_v2(self, junk):
self.init_session()
suggested = set()
if self.suspended:
self.suspended = False
else:
if self.dumb_server_mode:
objcache_maker = lambda: None
else:
objcache_maker = None
# FIXME: this goes together with the direct accesses below
self.repo._ensure_packwriter()
while 1:
ns = self.conn.read(4)
if not ns:
self.repo.abort_writing()
raise Exception(
'object read: expected length header, got EOF\n')
n = struct.unpack('!I', ns)[0]
#debug2('expecting %d bytes\n' % n)
if not n:
# FIXME: don't be lazy and count ourselves, or something, at least
# don't access self.repo internals
debug1('bup server: received %d object%s.\n' %
(self.repo._packwriter.count,
self.repo._packwriter.count != 1 and "s" or ''))
fullpath = self.repo.finish_writing(
run_midx=not self.dumb_server_mode)
if fullpath:
(dir, name) = os.path.split(fullpath)
self.conn.write(b'%s.idx\n' % name)
self.conn.ok()
return
elif n == 0xffffffff:
debug2('bup server: receive-objects suspended.\n')
self.suspended = True
self.conn.ok()
return
shar = self.conn.read(20)
crcr = struct.unpack('!I', self.conn.read(4))[0]
n -= 20 + 4
buf = self.conn.read(n) # object sizes in bup are reasonably small
#debug2('read %d bytes\n' % n)
self._check(n, len(buf),
'object read: expected %d bytes, got %d\n')
if not self.dumb_server_mode:
result = self.repo.exists(shar, want_source=True)
if result:
oldpack = result.pack
assert (oldpack.endswith(b'.idx'))
(dir, name) = os.path.split(oldpack)
if not (name in suggested):
debug1("bup server: suggesting index %s\n" %
git.shorten_hash(name).decode('ascii'))
debug1("bup server: because of object %s\n" %
hexstr(shar))
self.conn.write(b'index %s\n' % name)
suggested.add(name)
continue
# FIXME: figure out the right abstraction for this; or better yet,
# make the protocol aware of the object type
nw, crc = self.repo._packwriter._raw_write((buf, ), sha=shar)
self._check(crcr, crc, 'object read: expected crc %d, got %d\n')
def _set_mode():
global dumb_server_mode
dumb_server_mode = os.path.exists(git.repo('bup-dumb-server'))
debug1('bup server: serving in %s mode\n'
% (dumb_server_mode and 'dumb' or 'smart'))
sys.exit(0)
if not extra:
for t in tags:
sys.stdout.flush()
out = byte_stream(sys.stdout)
out.write(t)
out.write(b'\n')
sys.exit(0)
elif len(extra) != 2:
o.fatal('expected commit ref and hash')
tag_name, commit = map(argv_bytes, extra[:2])
if not tag_name:
o.fatal("tag name must not be empty.")
debug1("args: tag name = %s; commit = %s\n" %
(path_msg(tag_name), commit.decode('ascii')))
if tag_name in tags and not opt.force:
log("bup: error: tag '%s' already exists\n" % path_msg(tag_name))
sys.exit(1)
if tag_name.startswith(b'.'):
o.fatal("'%s' is not a valid tag name." % path_msg(tag_name))
try:
hash = git.rev_parse(commit)
except git.GitError as e:
log("bup: error: %s" % e)
sys.exit(2)
if not hash:
subcmd = extra
debug2('bup mux: starting %r\n' % (extra,))
outr, outw = os.pipe()
errr, errw = os.pipe()
def close_fds():
os.close(outr)
os.close(errr)
p = subprocess.Popen(subcmd, stdin=orig_stdin, stdout=outw, stderr=errw,
close_fds=False, preexec_fn=close_fds)
os.close(outw)
os.close(errw)
sys.stdout.flush()
out = byte_stream(sys.stdout)
out.write(b'BUPMUX')
out.flush()
mux(p, out.fileno(), outr, errr)
os.close(outr)
os.close(errr)
prv = p.wait()
if prv:
debug1('%s exited with code %d\n' % (extra[0], prv))
debug1('bup mux: done\n')
sys.exit(prv)
"list-indexes": list_indexes,
"send-index": send_index,
"receive-objects-v2": receive_objects_v2,
"read-ref": read_ref,
"update-ref": update_ref,
"cat": cat,
}
# FIXME: this protocol is totally lame and not at all future-proof.
# (Especially since we abort completely as soon as *anything* bad happens)
conn = Conn(sys.stdin, sys.stdout)
lr = linereader(conn)
for _line in lr:
line = _line.strip()
if not line:
continue
debug1("bup server: command: %r\n" % line)
words = line.split(" ", 1)
cmd = words[0]
rest = len(words) > 1 and words[1] or ""
if cmd == "quit":
break
else:
cmd = commands.get(cmd)
if cmd:
cmd(conn, rest)
else:
raise Exception("unknown server command: %r\n" % line)
debug1("bup server: done\n")
(opt, flags, extra) = o.parse(sys.argv[1:])
if extra:
o.fatal('no positional parameters expected')
if not opt.check and opt.k and opt.k not in (4, 5):
o.fatal('only k values of 4 and 5 are supported')
if opt.check:
opt.check = argv_bytes(opt.check)
git.check_repo_or_die()
output = argv_bytes(opt.output) if opt.output else None
paths = opt.dir and [argv_bytes(opt.dir)] or git.all_packdirs()
for path in paths:
debug1('bloom: scanning %s\n' % path_msg(path))
outfilename = output or os.path.join(path, b'bup.bloom')
if opt.check:
check_bloom(path, outfilename, opt.check)
elif opt.ruin:
ruin_bloom(outfilename)
else:
do_bloom(path, outfilename, opt.k)
if saved_errors:
log('WARNING: %d errors encountered during bloom.\n' % len(saved_errors))
sys.exit(1)
elif opt.check:
log('All tests passed.\n')
def do_bloom(path, outfilename, k, force):
global _first
assert k in (None, 4, 5)
b = None
if os.path.exists(outfilename) and not force:
b = bloom.ShaBloom(outfilename)
if not b.valid():
debug1("bloom: Existing invalid bloom found, regenerating.\n")
b = None
add = []
rest = []
add_count = 0
rest_count = 0
for i, name in enumerate(glob.glob(b'%s/*.idx' % path)):
progress('bloom: counting: %d\r' % i)
ix = git.open_idx(name)
ixbase = os.path.basename(name)
if b and (ixbase in b.idxnames):
rest.append(name)
rest_count += len(ix)
else:
add.append(name)
add_count += len(ix)
if not add:
debug1("bloom: nothing to do.\n")
return
if b:
if len(b) != rest_count:
debug1("bloom: size %d != idx total %d, regenerating\n" %
(len(b), rest_count))
b = None
elif k is not None and k != b.k:
debug1("bloom: new k %d != existing k %d, regenerating\n" %
(k, b.k))
b = None
elif (b.bits < bloom.MAX_BLOOM_BITS[b.k]
and b.pfalse_positive(add_count) > bloom.MAX_PFALSE_POSITIVE):
debug1("bloom: regenerating: adding %d entries gives "
"%.2f%% false positives.\n" %
(add_count, b.pfalse_positive(add_count)))
b = None
else:
b = bloom.ShaBloom(outfilename, readwrite=True, expected=add_count)
if not b: # Need all idxs to build from scratch
add += rest
add_count += rest_count
del rest
del rest_count
msg = b is None and 'creating from' or 'adding'
if not _first: _first = path
dirprefix = (_first != path) and git.repo_rel(path) + b': ' or b''
progress('bloom: %s%s %d file%s (%d object%s).\r' %
(path_msg(dirprefix), msg, len(add), len(add) != 1 and 's'
or '', add_count, add_count != 1 and 's' or ''))
tfname = None
if b is None:
tfname = os.path.join(path, b'bup.tmp.bloom')
b = bloom.create(tfname, expected=add_count, k=k)
count = 0
icount = 0
for name in add:
ix = git.open_idx(name)
qprogress('bloom: writing %.2f%% (%d/%d objects)\r' %
(icount * 100.0 / add_count, icount, add_count))
b.add_idx(ix)
count += 1
icount += len(ix)
# Currently, there's an open file object for tfname inside b.
# Make sure it's closed before rename.
b.close()
if tfname:
os.rename(tfname, outfilename)
def _set_mode():
global dumb_server_mode
dumb_server_mode = os.path.exists(git.repo("bup-dumb-server"))
debug1("bup server: serving in %s mode\n" % (dumb_server_mode and "dumb" or "smart"))
def main(argv):
o = options.Options(optspec)
opt, flags, extra = o.parse_bytes(argv[1:])
git.check_repo_or_die()
tags = [t for sublist in git.tags().values() for t in sublist]
if opt.delete:
# git.delete_ref() doesn't complain if a ref doesn't exist. We
# could implement this verification but we'd need to read in the
# contents of the tag file and pass the hash, and we already know
# about the tag's existance via "tags".
tag_name = argv_bytes(opt.delete)
if not opt.force and tag_name not in tags:
log("error: tag '%s' doesn't exist\n" % path_msg(tag_name))
sys.exit(1)
tag_file = b'refs/tags/%s' % tag_name
git.delete_ref(tag_file)
sys.exit(0)
if not extra:
for t in tags:
sys.stdout.flush()
out = byte_stream(sys.stdout)
out.write(t)
out.write(b'\n')
sys.exit(0)
elif len(extra) != 2:
o.fatal('expected commit ref and hash')
tag_name, commit = map(argv_bytes, extra[:2])
if not tag_name:
o.fatal("tag name must not be empty.")
debug1("args: tag name = %s; commit = %s\n" %
(path_msg(tag_name), commit.decode('ascii')))
if tag_name in tags and not opt.force:
log("bup: error: tag '%s' already exists\n" % path_msg(tag_name))
sys.exit(1)
if tag_name.startswith(b'.'):
o.fatal("'%s' is not a valid tag name." % path_msg(tag_name))
try:
hash = git.rev_parse(commit)
except git.GitError as e:
log("bup: error: %s" % e)
sys.exit(2)
if not hash:
log("bup: error: commit %s not found.\n" % commit.decode('ascii'))
sys.exit(2)
pL = git.PackIdxList(git.repo(b'objects/pack'))
if not pL.exists(hash):
log("bup: error: commit %s not found.\n" % commit.decode('ascii'))
sys.exit(2)
tag_file = git.repo(b'refs/tags/' + tag_name)
try:
tag = open(tag_file, 'wb')
except OSError as e:
log("bup: error: could not create tag '%s': %s" %
(path_msg(tag_name), e))
sys.exit(3)
with tag as tag:
tag.write(hexlify(hash))
tag.write(b'\n')
handle_ctrl_c()
o = options.Options(optspec)
(opt, flags, extra) = o.parse(sys.argv[1:])
if extra:
o.fatal("no positional parameters expected")
git.check_repo_or_die()
if not opt.check and opt.k and opt.k not in (4, 5):
o.fatal("only k values of 4 and 5 are supported")
paths = opt.dir and [opt.dir] or git.all_packdirs()
for path in paths:
debug1("bloom: scanning %s\n" % path)
outfilename = opt.output or os.path.join(path, "bup.bloom")
if opt.check:
check_bloom(path, outfilename, opt.check)
elif opt.ruin:
ruin_bloom(outfilename)
else:
do_bloom(path, outfilename)
if saved_errors:
log("WARNING: %d errors encountered during bloom.\n" % len(saved_errors))
sys.exit(1)
elif opt.check:
log("All tests passed.\n")
if len(extra) < 1:
o.fatal('command is required')
subcmd = extra
debug2('bup mux: starting %r\n' % (extra,))
outr, outw = os.pipe()
errr, errw = os.pipe()
def close_fds():
os.close(outr)
os.close(errr)
p = subprocess.Popen(subcmd, stdin=orig_stdin, stdout=outw, stderr=errw,
preexec_fn=close_fds)
os.close(outw)
os.close(errw)
sys.stdout.write('BUPMUX')
sys.stdout.flush()
mux(p, sys.stdout.fileno(), outr, errr)
os.close(outr)
os.close(errr)
prv = p.wait()
if prv:
debug1('%s exited with code %d\n' % (extra[0], prv))
debug1('bup mux: done\n')
sys.exit(prv)
def _do_midx(outdir, outfilename, infilenames, prefixstr,
auto=False, force=False):
global _first
if not outfilename:
assert(outdir)
sum = hexlify(Sha1(b'\0'.join(infilenames)).digest())
outfilename = b'%s/midx-%s.midx' % (outdir, sum)
inp = []
total = 0
allfilenames = []
midxs = []
try:
for name in infilenames:
ix = git.open_idx(name)
midxs.append(ix)
inp.append((
ix.map,
len(ix),
ix.sha_ofs,
isinstance(ix, midx.PackMidx) and ix.which_ofs or 0,
len(allfilenames),
))
for n in ix.idxnames:
allfilenames.append(os.path.basename(n))
total += len(ix)
inp.sort(reverse=True, key=lambda x: x[0][x[2] : x[2] + 20])
if not _first: _first = outdir
dirprefix = (_first != outdir) and git.repo_rel(outdir) + b': ' or b''
debug1('midx: %s%screating from %d files (%d objects).\n'
% (dirprefix, prefixstr, len(infilenames), total))
if (auto and (total < 1024 and len(infilenames) < 3)) \
or ((auto or force) and len(infilenames) < 2) \
or (force and not total):
debug1('midx: nothing to do.\n')
return
pages = int(total/SHA_PER_PAGE) or 1
bits = int(math.ceil(math.log(pages, 2)))
entries = 2**bits
debug1('midx: table size: %d (%d bits)\n' % (entries*4, bits))
unlink(outfilename)
with atomically_replaced_file(outfilename, 'wb') as f:
f.write(b'MIDX')
f.write(struct.pack('!II', midx.MIDX_VERSION, bits))
assert(f.tell() == 12)
f.truncate(12 + 4*entries + 20*total + 4*total)
f.flush()
fdatasync(f.fileno())
fmap = mmap_readwrite(f, close=False)
count = merge_into(fmap, bits, total, inp)
del fmap # Assume this calls msync() now.
f.seek(0, os.SEEK_END)
f.write(b'\0'.join(allfilenames))
finally:
for ix in midxs:
if isinstance(ix, midx.PackMidx):
ix.close()
midxs = None
inp = None
# This is just for testing (if you enable this, don't clear inp above)
if 0:
p = midx.PackMidx(outfilename)
assert(len(p.idxnames) == len(infilenames))
log(repr(p.idxnames) + '\n')
assert(len(p) == total)
for pe, e in p, git.idxmerge(inp, final_progress=False):
pin = next(pi)
assert(i == pin)
assert(p.exists(i))
return total, outfilename
def main():
handle_ctrl_c()
is_reverse = environ.get(b'BUP_SERVER_REVERSE')
opt = parse_args(compat.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:
opt.remote = argv_bytes(opt.remote)
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 init_dir(conn, arg):
git.init_repo(arg)
debug1('bup server: bupdir initialized: %r\n' % git.repodir)
_init_session(arg)
conn.ok()
def _set_mode():
global dumb_server_mode
dumb_server_mode = os.path.exists(git.repo('bup-dumb-server'))
debug1('bup server: serving in %s mode\n'
% (dumb_server_mode and 'dumb' or 'smart'))
'update-ref': update_ref,
'join': join,
'cat': join, # apocryphal alias
'cat-batch' : cat_batch,
'refs': refs,
'rev-list': rev_list
}
# FIXME: this protocol is totally lame and not at all future-proof.
# (Especially since we abort completely as soon as *anything* bad happens)
conn = Conn(sys.stdin, sys.stdout)
lr = linereader(conn)
for _line in lr:
line = _line.strip()
if not line:
continue
debug1('bup server: command: %r\n' % line)
words = line.split(' ', 1)
cmd = words[0]
rest = len(words)>1 and words[1] or ''
if cmd == 'quit':
break
else:
cmd = commands.get(cmd)
if cmd:
cmd(conn, rest)
else:
raise Exception('unknown server command: %r\n' % line)
debug1('bup server: done\n')
def refresh(self, skip_midx = False):
"""Refresh the index list.
This method verifies if .midx files were superseded (e.g. all of its
contents are in another, bigger .midx file) and removes the superseded
files.
If skip_midx is True, all work on .midx files will be skipped and .midx
files will be removed from the list.
The module-global variable 'ignore_midx' can force this function to
always act as if skip_midx was True.
"""
self.bloom = None # Always reopen the bloom as it may have been relaced
self.do_bloom = False
skip_midx = skip_midx or ignore_midx
d = dict((p.name, p) for p in self.packs
if not skip_midx or not isinstance(p, midx.PackMidx))
if os.path.exists(self.dir):
if not skip_midx:
midxl = []
for ix in self.packs:
if isinstance(ix, midx.PackMidx):
for name in ix.idxnames:
d[os.path.join(self.dir, name)] = ix
for full in glob.glob(os.path.join(self.dir,'*.midx')):
if not d.get(full):
mx = midx.PackMidx(full)
(mxd, mxf) = os.path.split(mx.name)
broken = False
for n in mx.idxnames:
if not os.path.exists(os.path.join(mxd, n)):
log(('warning: index %s missing\n' +
' used by %s\n') % (n, mxf))
broken = True
if broken:
mx.close()
del mx
unlink(full)
else:
midxl.append(mx)
midxl.sort(key=lambda ix:
(-len(ix), -xstat.stat(ix.name).st_mtime))
for ix in midxl:
any_needed = False
for sub in ix.idxnames:
found = d.get(os.path.join(self.dir, sub))
if not found or isinstance(found, PackIdx):
# doesn't exist, or exists but not in a midx
any_needed = True
break
if any_needed:
d[ix.name] = ix
for name in ix.idxnames:
d[os.path.join(self.dir, name)] = ix
elif not ix.force_keep:
debug1('midx: removing redundant: %s\n'
% os.path.basename(ix.name))
ix.close()
unlink(ix.name)
for full in glob.glob(os.path.join(self.dir,'*.idx')):
if not d.get(full):
try:
ix = open_idx(full)
except GitError as e:
add_error(e)
continue
d[full] = ix
bfull = os.path.join(self.dir, 'bup.bloom')
if self.bloom is None and os.path.exists(bfull):
self.bloom = bloom.ShaBloom(bfull)
self.packs = list(set(d.values()))
self.packs.sort(lambda x,y: -cmp(len(x),len(y)))
if self.bloom and self.bloom.valid() and len(self.bloom) >= len(self):
self.do_bloom = True
else:
self.bloom = None
debug1('PackIdxList: using %d index%s.\n'
% (len(self.packs), len(self.packs)!=1 and 'es' or ''))
def init_dir(conn, arg):
git.init_repo(arg)
debug1('bup server: bupdir initialized: %r\n' % git.repodir)
_init_session(arg)
conn.ok()
git.check_repo_or_die()
if opt.max_files < 0:
opt.max_files = max_files()
assert (opt.max_files >= 5)
if opt.check:
# check existing midx files
if extra:
midxes = extra
else:
midxes = []
paths = opt.dir and [opt.dir] or git.all_packdirs()
for path in paths:
debug1('midx: scanning %s\n' % path)
midxes += glob.glob(os.path.join(path, '*.midx'))
for name in midxes:
check_midx(name)
if not saved_errors:
log('All tests passed.\n')
else:
if extra:
do_midx(git.repo('objects/pack'), opt.output, extra, '')
elif opt.auto or opt.force:
paths = opt.dir and [opt.dir] or git.all_packdirs()
for path in paths:
debug1('midx: scanning %s\n' % path)
do_midx_dir(path, opt.output)
else:
o.fatal("you must use -f or -a or provide input filenames")
handle_ctrl_c()
o = options.Options(optspec)
(opt, flags, extra) = o.parse(sys.argv[1:])
if extra:
o.fatal('no positional parameters expected')
git.check_repo_or_die()
if not opt.check and opt.k and opt.k not in (4,5):
o.fatal('only k values of 4 and 5 are supported')
paths = opt.dir and [opt.dir] or git.all_packdirs()
for path in paths:
debug1('bloom: scanning %s\n' % path)
outfilename = opt.output or os.path.join(path, 'bup.bloom')
if opt.check:
check_bloom(path, outfilename, opt.check)
elif opt.ruin:
ruin_bloom(outfilename)
else:
do_bloom(path, outfilename)
if saved_errors:
log('WARNING: %d errors encountered during bloom.\n' % len(saved_errors))
sys.exit(1)
elif opt.check:
log('All tests passed.\n')
handle_ctrl_c()
o = options.Options(optspec)
(opt, flags, extra) = o.parse(sys.argv[1:])
if extra:
o.fatal('no positional parameters expected')
git.check_repo_or_die()
if not opt.check and opt.k and opt.k not in (4, 5):
o.fatal('only k values of 4 and 5 are supported')
paths = opt.dir and [opt.dir] or git.all_packdirs()
for path in paths:
debug1('bloom: scanning %s\n' % path)
outfilename = opt.output or os.path.join(path, 'bup.bloom')
if opt.check:
check_bloom(path, outfilename, opt.check)
elif opt.ruin:
ruin_bloom(outfilename)
else:
do_bloom(path, outfilename)
if saved_errors:
log('WARNING: %d errors encountered during bloom.\n' % len(saved_errors))
sys.exit(1)
elif opt.check:
log('All tests passed.\n')
def do_bloom(path, outfilename):
global _first
b = None
if os.path.exists(outfilename) and not opt.force:
b = bloom.ShaBloom(outfilename)
if not b.valid():
debug1("bloom: Existing invalid bloom found, regenerating.\n")
b = None
add = []
rest = []
add_count = 0
rest_count = 0
for i,name in enumerate(glob.glob('%s/*.idx' % path)):
progress('bloom: counting: %d\r' % i)
ix = git.open_idx(name)
ixbase = os.path.basename(name)
if b and (ixbase in b.idxnames):
rest.append(name)
rest_count += len(ix)
else:
add.append(name)
add_count += len(ix)
total = add_count + rest_count
if not add:
debug1("bloom: nothing to do.\n")
return
if b:
if len(b) != rest_count:
debug1("bloom: size %d != idx total %d, regenerating\n"
% (len(b), rest_count))
b = None
elif (b.bits < bloom.MAX_BLOOM_BITS and
b.pfalse_positive(add_count) > bloom.MAX_PFALSE_POSITIVE):
debug1("bloom: regenerating: adding %d entries gives "
"%.2f%% false positives.\n"
% (add_count, b.pfalse_positive(add_count)))
b = None
else:
b = bloom.ShaBloom(outfilename, readwrite=True, expected=add_count)
if not b: # Need all idxs to build from scratch
add += rest
add_count += rest_count
del rest
del rest_count
msg = b is None and 'creating from' or 'adding'
if not _first: _first = path
dirprefix = (_first != path) and git.repo_rel(path)+': ' or ''
progress('bloom: %s%s %d file%s (%d object%s).\n'
% (dirprefix, msg,
len(add), len(add)!=1 and 's' or '',
add_count, add_count!=1 and 's' or ''))
tfname = None
if b is None:
tfname = os.path.join(path, 'bup.tmp.bloom')
b = bloom.create(tfname, expected=add_count, k=opt.k)
count = 0
icount = 0
for name in add:
ix = git.open_idx(name)
qprogress('bloom: writing %.2f%% (%d/%d objects)\r'
% (icount*100.0/add_count, icount, add_count))
b.add_idx(ix)
count += 1
icount += len(ix)
# Currently, there's an open file object for tfname inside b.
# Make sure it's closed before rename.
b.close()
if tfname:
os.rename(tfname, outfilename)
'update-ref': update_ref,
'join': join,
'cat': join, # apocryphal alias
'cat-batch' : cat_batch,
'refs': refs,
'rev-list': rev_list
}
# FIXME: this protocol is totally lame and not at all future-proof.
# (Especially since we abort completely as soon as *anything* bad happens)
conn = Conn(sys.stdin, sys.stdout)
lr = linereader(conn)
for _line in lr:
line = _line.strip()
if not line:
continue
debug1('bup server: command: %r\n' % line)
words = line.split(' ', 1)
cmd = words[0]
rest = len(words)>1 and words[1] or ''
if cmd == 'quit':
break
else:
cmd = commands.get(cmd)
if cmd:
cmd(conn, rest)
else:
raise Exception('unknown server command: %r\n' % line)
debug1('bup server: done\n')
def refresh(self, skip_midx=False):
"""Refresh the index list.
This method verifies if .midx files were superseded (e.g. all of its
contents are in another, bigger .midx file) and removes the superseded
files.
If skip_midx is True, all work on .midx files will be skipped and .midx
files will be removed from the list.
The instance variable 'ignore_midx' can force this function to
always act as if skip_midx was True.
"""
if self.bloom is not None:
self.bloom.close()
self.bloom = None # Always reopen the bloom as it may have been relaced
self.do_bloom = False
skip_midx = skip_midx or self.ignore_midx
d = dict((p.name, p) for p in self.packs
if not skip_midx or not isinstance(p, midx.PackMidx))
if os.path.exists(self.dir):
if not skip_midx:
midxl = []
midxes = set(glob.glob(os.path.join(self.dir, b'*.midx')))
# remove any *.midx files from our list that no longer exist
for ix in list(d.values()):
if not isinstance(ix, midx.PackMidx):
continue
if ix.name in midxes:
continue
# remove the midx
del d[ix.name]
ix.close()
self.packs.remove(ix)
for ix in self.packs:
if isinstance(ix, midx.PackMidx):
for name in ix.idxnames:
d[os.path.join(self.dir, name)] = ix
for full in midxes:
if not d.get(full):
mx = midx.PackMidx(full)
(mxd, mxf) = os.path.split(mx.name)
broken = False
for n in mx.idxnames:
if not os.path.exists(os.path.join(mxd, n)):
log(('warning: index %s missing\n'
' used by %s\n') %
(path_msg(n), path_msg(mxf)))
broken = True
if broken:
mx.close()
del mx
unlink(full)
else:
midxl.append(mx)
midxl.sort(
key=lambda ix: (-len(ix), -xstat.stat(ix.name).st_mtime))
for ix in midxl:
any_needed = False
for sub in ix.idxnames:
found = d.get(os.path.join(self.dir, sub))
if not found or isinstance(found, PackIdx):
# doesn't exist, or exists but not in a midx
any_needed = True
break
if any_needed:
d[ix.name] = ix
for name in ix.idxnames:
d[os.path.join(self.dir, name)] = ix
elif not ix.force_keep:
debug1('midx: removing redundant: %s\n' %
path_msg(os.path.basename(ix.name)))
ix.close()
unlink(ix.name)
for full in glob.glob(os.path.join(self.dir, b'*.idx')):
if not d.get(full):
try:
ix = open_idx(full)
except GitError as e:
add_error(e)
continue
d[full] = ix
bfull = os.path.join(self.dir, b'bup.bloom')
if self.bloom is None and os.path.exists(bfull):
self.bloom = bloom.ShaBloom(bfull)
self.packs = list(set(d.values()))
self.packs.sort(reverse=True, key=lambda x: len(x))
if self.bloom and self.bloom.valid() and len(
self.bloom) >= len(self):
self.do_bloom = True
else:
self.bloom = None
debug1('PackIdxList: using %d index%s.\n' %
(len(self.packs), len(self.packs) != 1 and 'es' or ''))
if opt.max_files < 0:
opt.max_files = max_files()
assert (opt.max_files >= 5)
extra = [argv_bytes(x) for x in extra]
if opt.check:
# check existing midx files
if extra:
midxes = extra
else:
midxes = []
paths = opt.dir and [opt.dir] or git.all_packdirs()
for path in paths:
debug1('midx: scanning %s\n' % path)
midxes += glob.glob(os.path.join(path, b'*.midx'))
for name in midxes:
check_midx(name)
if not saved_errors:
log('All tests passed.\n')
else:
if extra:
sys.stdout.flush()
do_midx(git.repo(b'objects/pack'), opt.output, extra, b'',
byte_stream(sys.stdout))
elif opt.auto or opt.force:
sys.stdout.flush()
paths = opt.dir and [opt.dir] or git.all_packdirs()
for path in paths:
debug1('midx: scanning %s\n' % path_msg(path))
