def _create(cls, repo, path, resolve, reference, force, logmsg=None):
"""internal method used to create a new symbolic reference.
If resolve is False, the reference will be taken as is, creating
a proper symbolic reference. Otherwise it will be resolved to the
corresponding object and a detached symbolic reference will be created
instead"""
full_ref_path = cls.to_full_path(path)
abs_ref_path = join(repo.git_dir, full_ref_path)
# figure out target data
target = reference
if resolve:
target = repo.rev_parse(str(reference))
if not force and isfile(abs_ref_path):
target_data = str(target)
if isinstance(target, SymbolicReference):
target_data = target.path
if not resolve:
target_data = "ref: " + target_data
existing_data = open(abs_ref_path, 'rb').read().decode(defenc).strip()
if existing_data != target_data:
raise OSError("Reference at %r does already exist, pointing to %r, requested was %r" %
(full_ref_path, existing_data, target_data))
# END no force handling
ref = cls(repo, full_ref_path)
ref.set_reference(target, logmsg)
return ref
def is_dirty(self, index=True, working_tree=True, untracked_files=False,
submodules=True):
"""
:return:
``True``, the repository is considered dirty. By default it will react
like a git-status without untracked files, hence it is dirty if the
index or the working copy have changes."""
if self._bare:
# Bare repositories with no associated working directory are
# always consired to be clean.
return False
# start from the one which is fastest to evaluate
default_args = ['--abbrev=40', '--full-index', '--raw']
if not submodules:
default_args.append('--ignore-submodules')
if index:
# diff index against HEAD
if isfile(self.index.path) and \
len(self.git.diff('--cached', *default_args)):
return True
# END index handling
if working_tree:
# diff index against working tree
if len(self.git.diff(*default_args)):
return True
# END working tree handling
if untracked_files:
if len(self._get_untracked_files(ignore_submodules=not submodules)):
return True
# END untracked files
return False
def is_git_dir(d):
""" This is taken from the git setup.c:is_git_directory
function."""
if isdir(d) and isdir(join(d, "objects")) and isdir(join(d, "refs")):
headref = join(d, "HEAD")
return isfile(headref) or (os.path.islink(headref) and os.readlink(headref).startswith("refs"))
return False
def _create(cls, repo, path, resolve, reference, force, logmsg=None):
"""internal method used to create a new symbolic reference.
If resolve is False, the reference will be taken as is, creating
a proper symbolic reference. Otherwise it will be resolved to the
corresponding object and a detached symbolic reference will be created
instead"""
full_ref_path = cls.to_full_path(path)
abs_ref_path = join(repo.git_dir, full_ref_path)
# figure out target data
target = reference
if resolve:
target = repo.rev_parse(str(reference))
if not force and isfile(abs_ref_path):
target_data = str(target)
if isinstance(target, SymbolicReference):
target_data = target.path
if not resolve:
target_data = "ref: " + target_data
existing_data = open(abs_ref_path,
'rb').read().decode(defenc).strip()
if existing_data != target_data:
raise OSError(
"Reference at %r does already exist, pointing to %r, requested was %r"
% (full_ref_path, existing_data, target_data))
# END no force handling
ref = cls(repo, full_ref_path)
ref.set_reference(target, logmsg)
return ref
def is_git_dir(d):
""" This is taken from the git setup.c:is_git_directory
function.
@throws WorkTreeRepositoryUnsupported if it sees a worktree directory. It's quite hacky to do that here,
but at least clearly indicates that we don't support it.
There is the unlikely danger to throw if we see directories which just look like a worktree dir,
but are none."""
if isdir(d):
if isdir(join(d, 'objects')) and isdir(join(d, 'refs')):
headref = join(d, 'HEAD')
return isfile(headref) or \
(os.path.islink(headref) and
os.readlink(headref).startswith('refs'))
elif isfile(join(d, 'gitdir')) and isfile(join(d, 'commondir')) and isfile(join(d, 'gitfile')):
raise WorkTreeRepositoryUnsupported(d)
return False
def find_git_dir(d):
if is_git_dir(d):
return d
elif isfile(d):
with open(d) as fp:
content = fp.read().rstrip()
if content.startswith('gitdir: '):
d = join(dirname(d), content[8:])
return find_git_dir(d)
return None
def is_git_dir(d):
""" This is taken from the git setup.c:is_git_directory
function."""
if isdir(d) and \
isdir(join(d, 'objects')) and \
isdir(join(d, 'refs')):
headref = join(d, 'HEAD')
return isfile(headref) or \
(os.path.islink(headref) and
os.readlink(headref).startswith('refs'))
return False
def is_git_dir(d):
""" This is taken from the git setup.c:is_git_directory
function."""
if isdir(d) and \
isdir(join(d, 'objects')) and \
isdir(join(d, 'refs')):
headref = join(d, 'HEAD')
return isfile(headref) or \
(os.path.islink(headref) and
os.readlink(headref).startswith('refs'))
return False
def rename(self, new_path, force=False):
"""Rename self to a new path
:param new_path:
Either a simple name or a full path, i.e. new_name or features/new_name.
The prefix refs/ is implied for references and will be set as needed.
In case this is a symbolic ref, there is no implied prefix
:param force:
If True, the rename will succeed even if a head with the target name
already exists. It will be overwritten in that case
:return: self
:raise OSError: In case a file at path but a different contents already exists """
new_path = self.to_full_path(new_path)
if self.path == new_path:
return self
new_abs_path = join(self.repo.git_dir, new_path)
cur_abs_path = join(self.repo.git_dir, self.path)
if isfile(new_abs_path):
if not force:
# if they point to the same file, its not an error
with open(new_abs_path, 'rb') as fd1:
f1 = fd1.read().strip()
with open(cur_abs_path, 'rb') as fd2:
f2 = fd2.read().strip()
if f1 != f2:
raise OSError("File at path %r already exists" %
new_abs_path)
# else: we could remove ourselves and use the otherone, but
# but clarity we just continue as usual
# END not force handling
os.remove(new_abs_path)
# END handle existing target file
dname = dirname(new_abs_path)
if not isdir(dname):
os.makedirs(dname)
# END create directory
rename(cur_abs_path, new_abs_path)
self.path = new_path
return self
def _set_alternates(self, alts):
"""Sets the alternates
:parm alts:
is the array of string paths representing the alternates at which
git should look for objects, i.e. /home/user/repo/.git/objects
:raise NoSuchPathError:
:note:
The method does not check for the existance of the paths in alts
as the caller is responsible."""
alternates_path = join(self.git_dir, 'objects', 'info', 'alternates')
if not alts:
if isfile(alternates_path):
os.remove(alternates_path)
else:
with open(alternates_path, 'wb') as f:
f.write("\n".join(alts).encode(defenc))
def rename(self, new_path, force=False):
"""Rename self to a new path
:param new_path:
Either a simple name or a full path, i.e. new_name or features/new_name.
The prefix refs/ is implied for references and will be set as needed.
In case this is a symbolic ref, there is no implied prefix
:param force:
If True, the rename will succeed even if a head with the target name
already exists. It will be overwritten in that case
:return: self
:raise OSError: In case a file at path but a different contents already exists """
new_path = self.to_full_path(new_path)
if self.path == new_path:
return self
new_abs_path = join(self.repo.git_dir, new_path)
cur_abs_path = join(self.repo.git_dir, self.path)
if isfile(new_abs_path):
if not force:
# if they point to the same file, its not an error
if open(new_abs_path, 'rb').read().strip() != open(cur_abs_path,
'rb').read().strip():
raise OSError("File at path %r already exists" % new_abs_path)
# else: we could remove ourselves and use the otherone, but
# but clarity we just continue as usual
# END not force handling
os.remove(new_abs_path)
# END handle existing target file
dname = dirname(new_abs_path)
if not isdir(dname):
os.makedirs(dname)
# END create directory
rename(cur_abs_path, new_abs_path)
self.path = new_path
return self
def _set_alternates(self, alts):
"""Sets the alternates
:parm alts:
is the array of string paths representing the alternates at which
git should look for objects, i.e. /home/user/repo/.git/objects
:raise NoSuchPathError:
:note:
The method does not check for the existance of the paths in alts
as the caller is responsible."""
alternates_path = join(self.git_dir, 'objects', 'info', 'alternates')
if not alts:
if isfile(alternates_path):
os.remove(alternates_path)
else:
try:
f = open(alternates_path, 'wb')
f.write("\n".join(alts).encode(defenc))
finally:
f.close()
def _set_object(self, ref): """ Set our reference to point to the given ref. It will be converted to a specific hexsha. If the reference does not exist, it will be created. :note: TypeChecking is done by the git command""" # check for existence, touch it if required abs_path = self._abs_path() existed = True if not isfile(abs_path): existed = False open(abs_path, 'wb').write(Object.NULL_HEX_SHA) # END quick create # do it safely by specifying the old value try: self.repo.git.update_ref(self.path, ref, (existed and self._get_object().hexsha) or None) except: if not existed: os.remove(abs_path) # END remove file on error if it didn't exist before raise
def store(self, istream):
"""note: The sha we produce will be hex by nature"""
tmp_path = None
writer = self.ostream()
if writer is None:
# open a tmp file to write the data to
fd, tmp_path = tempfile.mkstemp(prefix="obj", dir=self._root_path)
if istream.binsha is None:
writer = FDCompressedSha1Writer(fd)
else:
writer = FDStream(fd)
# END handle direct stream copies
# END handle custom writer
try:
try:
if istream.binsha is not None:
# copy as much as possible, the actual uncompressed item size might
# be smaller than the compressed version
stream_copy(istream.read, writer.write, MAXSIZE, self.stream_chunk_size)
else:
# write object with header, we have to make a new one
write_object(
istream.type, istream.size, istream.read, writer.write, chunk_size=self.stream_chunk_size
)
# END handle direct stream copies
finally:
if tmp_path:
writer.close()
# END assure target stream is closed
except:
if tmp_path:
os.remove(tmp_path)
raise
# END assure tmpfile removal on error
hexsha = None
if istream.binsha:
hexsha = istream.hexsha
else:
hexsha = writer.sha(as_hex=True)
# END handle sha
if tmp_path:
obj_path = self.db_path(self.object_path(hexsha))
obj_dir = dirname(obj_path)
if not isdir(obj_dir):
mkdir(obj_dir)
# END handle destination directory
# rename onto existing doesn't work on windows
if os.name == "nt":
if isfile(obj_path):
remove(tmp_path)
else:
rename(tmp_path, obj_path)
# end rename only if needed
else:
rename(tmp_path, obj_path)
# END handle win32
# make sure its readable for all ! It started out as rw-- tmp file
# but needs to be rwrr
chmod(obj_path, self.new_objects_mode)
# END handle dry_run
istream.binsha = hex_to_bin(hexsha)
return istream
def store(self, istream):
"""note: The sha we produce will be hex by nature"""
tmp_path = None
writer = self.ostream()
if writer is None:
# open a tmp file to write the data to
fd, tmp_path = tempfile.mkstemp(prefix='obj', dir=self._root_path)
if istream.binsha is None:
writer = FDCompressedSha1Writer(fd)
else:
writer = FDStream(fd)
# END handle direct stream copies
# END handle custom writer
try:
try:
if istream.binsha is not None:
# copy as much as possible, the actual uncompressed item size might
# be smaller than the compressed version
stream_copy(istream.read, writer.write, sys.maxint,
self.stream_chunk_size)
else:
# write object with header, we have to make a new one
write_object(istream.type,
istream.size,
istream.read,
writer.write,
chunk_size=self.stream_chunk_size)
# END handle direct stream copies
finally:
if tmp_path:
writer.close()
# END assure target stream is closed
except:
if tmp_path:
os.remove(tmp_path)
raise
# END assure tmpfile removal on error
hexsha = None
if istream.binsha:
hexsha = istream.hexsha
else:
hexsha = writer.sha(as_hex=True)
# END handle sha
if tmp_path:
obj_path = self.db_path(self.object_path(hexsha))
obj_dir = dirname(obj_path)
if not isdir(obj_dir):
mkdir(obj_dir)
# END handle destination directory
# rename onto existing doesn't work on windows
if os.name == 'nt' and isfile(obj_path):
remove(obj_path)
# END handle win322
rename(tmp_path, obj_path)
# make sure its readable for all ! It started out as rw-- tmp file
# but needs to be rwrr
chmod(obj_path, self.new_objects_mode)
# END handle dry_run
istream.binsha = hex_to_bin(hexsha)
return istream
