byte_int, bytes_from_byte, bytes_from_uint,
environ,
ExitStack,
- items,
pending_raise,
- range,
reraise)
from bup.io import path_msg
from bup.helpers import (Sha1, add_error, chunkyreader, debug1, debug2,
repodir = None # The default repository, once initialized
_typemap = {b'blob': 3, b'tree': 2, b'commit': 1, b'tag': 4}
-_typermap = {v: k for k, v in items(_typemap)}
+_typermap = {v: k for k, v in _typemap.items()}
_total_searches = 0
return (type, zlib.decompress(buf[i+1:]))
-class PackIdx:
- def __init__(self):
- assert(0)
-
+class PackIdx(object):
def find_offset(self, hash):
"""Get the offset of an object inside the index file."""
idx = self._idx_from_hash(hash)
class PackIdxV1(PackIdx):
"""Object representation of a Git pack index (version 1) file."""
def __init__(self, filename, f):
+ super(PackIdxV1, self).__init__()
+ self.closed = False
self.name = filename
self.idxnames = [self.name]
self.map = mmap_read(f)
yield self.map[ofs : ofs + 20]
def close(self):
+ self.closed = True
if self.map is not None:
self.shatable = None
self.map.close()
self.map = None
+ def __del__(self):
+ assert self.closed
+
class PackIdxV2(PackIdx):
"""Object representation of a Git pack index (version 2) file."""
def __init__(self, filename, f):
+ super(PackIdxV2, self).__init__()
+ self.closed = False
self.name = filename
self.idxnames = [self.name]
self.map = mmap_read(f)
yield self.map[ofs : ofs + 20]
def close(self):
+ self.closed = True
if self.map is not None:
self.shatable = None
self.map.close()
self.map = None
+ def __del__(self):
+ assert self.closed
+
_mpi_count = 0
class PackIdxList:
self.do_bloom = False
self.bloom = None
self.ignore_midx = ignore_midx
- self.refresh()
+ try:
+ self.refresh()
+ except BaseException as ex:
+ with pending_raise(ex):
+ self.close()
def close(self):
global _mpi_count
continue
d[full] = ix
bfull = os.path.join(self.dir, b'bup.bloom')
- self.packs = list(set(d.values()))
- self.packs.sort(reverse=True, key=lambda x: len(x))
+ new_packs = set(d.values())
+ for p in self.packs:
+ if not p in new_packs:
+ p.close()
+ new_packs = list(new_packs)
+ new_packs.sort(reverse=True, key=lambda x: len(x))
+ self.packs = new_packs
if self.bloom is None and os.path.exists(bfull):
self.bloom = bloom.ShaBloom(bfull)
try:
# bup-gc assumes that it can disable all PackWriter activities
# (bloom/midx/cache) via the constructor and close() arguments.
-class PackWriter:
+class PackWriter(object):
"""Writes Git objects inside a pack file."""
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.closed = False
self.repo_dir = repo_dir or repo()
self.file = None
self.parentfd = None
def _end(self, run_midx=True, abort=False):
# Ignores run_midx during abort
- if not self.file:
- return None
+ self.parentfd, pfd, = None, self.parentfd
self.file, f = None, self.file
self.idx, idx = None, self.idx
- self.parentfd, pfd, = None, self.parentfd
-
try:
with nullcontext_if_not(self.objcache), \
finalized(pfd, lambda x: x is not None and os.close(x)), \
- f:
+ nullcontext_if_not(f):
+ if not f:
+ return None
if abort:
os.unlink(self.filename + b'.pack')
def abort(self):
"""Remove the pack file from disk."""
+ self.closed = True
self._end(abort=True)
def breakpoint(self):
def close(self, run_midx=True):
"""Close the pack file and move it to its definitive path."""
+ self.closed = True
return self._end(run_midx=run_midx)
+ def __del__(self):
+ assert self.closed
+
class PackIdxV2Writer:
def __init__(self):
return None
-def update_ref(refname, newval, oldval, repo_dir=None):
- """Update a repository reference."""
- if not oldval:
- oldval = b''
+def update_ref(refname, newval, oldval, repo_dir=None, force=False):
+ """Update a repository reference.
+
+ With force=True, don't care about the previous ref (oldval);
+ with force=False oldval must be either a sha1 or None (for an
+ entirely new branch)
+ """
+ if force:
+ assert oldval is None
+ oldarg = []
+ elif not oldval:
+ oldarg = [b'']
+ else:
+ oldarg = [hexlify(oldval)]
assert refname.startswith(b'refs/heads/') \
or refname.startswith(b'refs/tags/')
p = subprocess.Popen([b'git', b'update-ref', refname,
- hexlify(newval), hexlify(oldval)],
+ hexlify(newval)] + oldarg,
env=_gitenv(repo_dir),
close_fds=True)
_git_wait(b'git update-ref', p)
projects / bup.git / blobdiff