yield ''.join(cp().join(sha.encode('hex')))[skipmore:]
-class _ChunkReader(object):
+class _ChunkReader:
def __init__(self, hash, isdir, startofs):
if isdir:
self.it = _chunkiter(hash, startofs)
pass
-class Node(object):
+class Node:
"""Base class for file representation."""
def __init__(self, parent, name, mode, hash):
self.parent = parent
self._subs[name] = File(self, name, mode, sha, bupmode)
+class CommitDir(Node):
+ """A directory that contains all commits that are reachable by a ref.
+
+ Contains a set of subdirectories named after the commits' first byte in
+ hexadecimal. Each of those directories contain all commits with hashes that
+ start the same as the directory name. The name used for those
+ subdirectories is the hash of the commit without the first byte. This
+ separation helps us avoid having too much directories on the same level as
+ the number of commits grows big.
+ """
+ def __init__(self, parent, name):
+ Node.__init__(self, parent, name, 040000, EMPTY_SHA)
+
+ def _mksubs(self):
+ self._subs = {}
+ refs = git.list_refs()
+ for ref in refs:
+ #debug2('ref name: %s\n' % ref[0])
+ revs = git.rev_list(ref[1].encode('hex'))
+ for (date, commit) in revs:
+ #debug2('commit: %s date: %s\n' % (commit.encode('hex'), date))
+ commithex = commit.encode('hex')
+ containername = commithex[:2]
+ dirname = commithex[2:]
+ n1 = self._subs.get(containername)
+ if not n1:
+ n1 = CommitList(self, containername)
+ self._subs[containername] = n1
+
+ if n1.commits.get(dirname):
+ # Stop work for this ref, the rest should already be present
+ break
+
+ n1.commits[dirname] = (commit, date)
+
+
class CommitList(Node):
- """A reverse-chronological list of commits on a branch in bup's repository.
+ """A list of commits with hashes that start with the current node's name."""
+ def __init__(self, parent, name):
+ Node.__init__(self, parent, name, 040000, EMPTY_SHA)
+ self.commits = {}
+
+ def _mksubs(self):
+ self._subs = {}
+ for (name, (hash, date)) in self.commits.items():
+ n1 = Dir(self, name, 040000, hash)
+ n1.ctime = n1.mtime = date
+ self._subs[name] = n1
+
+
+class TagDir(Node):
+ """A directory that contains all tags in the repository."""
+ def __init__(self, parent, name):
+ Node.__init__(self, parent, name, 040000, EMPTY_SHA)
+
+ def _mksubs(self):
+ self._subs = {}
+ for (name, sha) in git.list_refs():
+ if name.startswith('refs/tags/'):
+ name = name[10:]
+ date = git.rev_get_date(sha.encode('hex'))
+ commithex = sha.encode('hex')
+ target = '../.commit/%s/%s' % (commithex[:2], commithex[2:])
+ tag1 = FakeSymlink(self, name, target)
+ tag1.ctime = tag1.mtime = date
+ self._subs[name] = tag1
+
- Represents each commit as a directory and a symlink that points to the
- directory. The symlink is named after the date. Prepends a dot to each hash
- to make commits look like hidden directories.
+class BranchList(Node):
+ """A list of links to commits reachable by a branch in bup's repository.
+
+ Represents each commit as a symlink that points to the commit directory in
+ /.commit/??/ . The symlink is named after the commit date.
"""
def __init__(self, parent, name, hash):
Node.__init__(self, parent, name, 040000, hash)
def _mksubs(self):
self._subs = {}
+
+ tags = git.tags()
+
revs = list(git.rev_list(self.hash.encode('hex')))
for (date, commit) in revs:
l = time.localtime(date)
ls = time.strftime('%Y-%m-%d-%H%M%S', l)
- commithex = '.' + commit.encode('hex')
- n1 = Dir(self, commithex, 040000, commit)
- n2 = FakeSymlink(self, ls, commithex)
- n1.ctime = n1.mtime = n2.ctime = n2.mtime = date
- self._subs[commithex] = n1
- self._subs[ls] = n2
- latest = max(revs)
+ commithex = commit.encode('hex')
+ target = '../.commit/%s/%s' % (commithex[:2], commithex[2:])
+ n1 = FakeSymlink(self, ls, target)
+ n1.ctime = n1.mtime = date
+ self._subs[ls] = n1
+
+ for tag in tags.get(commit, []):
+ t1 = FakeSymlink(self, tag, target)
+ t1.ctime = t1.mtime = date
+ self._subs[tag] = t1
+
+ latest = max(revs)
if latest:
(date, commit) = latest
- commithex = '.' + commit.encode('hex')
- n2 = FakeSymlink(self, 'latest', commithex)
- n2.ctime = n2.mtime = date
- self._subs['latest'] = n2
+ commithex = commit.encode('hex')
+ target = '../.commit/%s/%s' % (commithex[:2], commithex[2:])
+ n1 = FakeSymlink(self, 'latest', target)
+ n1.ctime = n1.mtime = date
+ self._subs['latest'] = n1
class RefList(Node):
The sub-nodes of the ref list are a series of CommitList for each commit
hash pointed to by a branch.
+
+ Also, a special sub-node named '.commit' contains all commit directories
+ that are reachable via a ref (e.g. a branch). See CommitDir for details.
"""
def __init__(self, parent):
Node.__init__(self, parent, '/', 040000, EMPTY_SHA)
def _mksubs(self):
self._subs = {}
+
+ commit_dir = CommitDir(self, '.commit')
+ self._subs['.commit'] = commit_dir
+
+ tag_dir = TagDir(self, '.tag')
+ self._subs['.tag'] = tag_dir
+
for (name,sha) in git.list_refs():
if name.startswith('refs/heads/'):
name = name[11:]
date = git.rev_get_date(sha.encode('hex'))
- n1 = CommitList(self, name, sha)
+ n1 = BranchList(self, name, sha)
n1.ctime = n1.mtime = date
self._subs[name] = n1
-
-
projects / bup.git / blobdiff