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util.py
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# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
#
# This module is part of GitPython and is released under the
# 3-Clause BSD License: https://opensource.org/license/bsd-3-clause/
importsys
__all__= [
"stream_copy",
"join_path",
"to_native_path_linux",
"join_path_native",
"Stats",
"IndexFileSHA1Writer",
"IterableObj",
"IterableList",
"BlockingLockFile",
"LockFile",
"Actor",
"get_user_id",
"assure_directory_exists",
"RemoteProgress",
"CallableRemoteProgress",
"rmtree",
"unbare_repo",
"HIDE_WINDOWS_KNOWN_ERRORS",
]
ifsys.platform=="win32":
__all__.append("to_native_path_windows")
fromabcimportabstractmethod
importcontextlib
fromfunctoolsimportwraps
importgetpass
importlogging
importos
importos.pathasosp
frompathlibimportPath
importplatform
importre
importshutil
importstat
importsubprocess
importtime
fromurllib.parseimporturlsplit,urlunsplit
importwarnings
# NOTE: Unused imports can be improved now that CI testing has fully resumed. Some of
# these be used indirectly through other GitPython modules, which avoids having to write
# gitdb all the time in their imports. They are not in __all__, at least currently,
# because they could be removed or changed at any time, and so should not be considered
# conceptually public to code outside GitPython. Linters of course do not like it.
fromgitdb.utilimport (
LazyMixin,# noqa: F401
LockedFD,# noqa: F401
bin_to_hex,# noqa: F401
file_contents_ro,# noqa: F401
file_contents_ro_filepath,# noqa: F401
hex_to_bin,# noqa: F401
make_sha,
to_bin_sha,# noqa: F401
to_hex_sha,# noqa: F401
)
# typing ---------------------------------------------------------
fromtypingimport (
Any,
AnyStr,
BinaryIO,
Callable,
Dict,
Generator,
IO,
Iterator,
List,
Optional,
Pattern,
Sequence,
Tuple,
TYPE_CHECKING,
TypeVar,
Union,
cast,
overload,
)
ifTYPE_CHECKING:
fromgit.cmdimportGit
fromgit.configimportGitConfigParser,SectionConstraint
fromgit.remoteimportRemote
fromgit.repo.baseimportRepo
fromgit.typesimport (
Files_TD,
Has_id_attribute,
HSH_TD,
Literal,
PathLike,
Protocol,
SupportsIndex,
Total_TD,
runtime_checkable,
)
# ---------------------------------------------------------------------
T_IterableObj=TypeVar("T_IterableObj",bound=Union["IterableObj","Has_id_attribute"],covariant=True)
# So IterableList[Head] is subtype of IterableList[IterableObj].
_logger=logging.getLogger(__name__)
def_read_env_flag(name:str,default:bool)->bool:
"""Read a boolean flag from an environment variable.
:return:
The flag, or the `default` value if absent or ambiguous.
"""
try:
value=os.environ[name]
exceptKeyError:
returndefault
_logger.warning(
"The %s environment variable is deprecated. Its effect has never been documented and changes without warning.",
name,
)
adjusted_value=value.strip().lower()
ifadjusted_valuein {"","0","false","no"}:
returnFalse
ifadjusted_valuein {"1","true","yes"}:
returnTrue
_logger.warning("%s has unrecognized value %r, treating as %r.",name,value,default)
returndefault
def_read_win_env_flag(name:str,default:bool)->bool:
"""Read a boolean flag from an environment variable on Windows.
:return:
On Windows, the flag, or the `default` value if absent or ambiguous.
On all other operating systems, ``False``.
:note:
This only accesses the environment on Windows.
"""
returnsys.platform=="win32"and_read_env_flag(name,default)
#: We need an easy way to see if Appveyor TCs start failing,
#: so the errors marked with this var are considered "acknowledged" ones, awaiting remedy,
#: till then, we wish to hide them.
HIDE_WINDOWS_KNOWN_ERRORS=_read_win_env_flag("HIDE_WINDOWS_KNOWN_ERRORS",True)
HIDE_WINDOWS_FREEZE_ERRORS=_read_win_env_flag("HIDE_WINDOWS_FREEZE_ERRORS",True)
# { Utility Methods
T=TypeVar("T")
defunbare_repo(func:Callable[...,T])->Callable[...,T]:
"""Methods with this decorator raise :exc:`~git.exc.InvalidGitRepositoryError` if
they encounter a bare repository."""
from .excimportInvalidGitRepositoryError
@wraps(func)
defwrapper(self:"Remote",*args:Any,**kwargs:Any)->T:
ifself.repo.bare:
raiseInvalidGitRepositoryError("Method '%s' cannot operate on bare repositories"%func.__name__)
# END bare method
returnfunc(self,*args,**kwargs)
# END wrapper
returnwrapper
@contextlib.contextmanager
defcwd(new_dir:PathLike)->Generator[PathLike,None,None]:
"""Context manager to temporarily change directory.
This is similar to :func:`contextlib.chdir` introduced in Python 3.11, but the
context manager object returned by a single call to this function is not reentrant.
"""
old_dir=os.getcwd()
os.chdir(new_dir)
try:
yieldnew_dir
finally:
os.chdir(old_dir)
@contextlib.contextmanager
defpatch_env(name:str,value:str)->Generator[None,None,None]:
"""Context manager to temporarily patch an environment variable."""
old_value=os.getenv(name)
os.environ[name]=value
try:
yield
finally:
ifold_valueisNone:
delos.environ[name]
else:
os.environ[name]=old_value
defrmtree(path:PathLike)->None:
"""Remove the given directory tree recursively.
:note:
We use :func:`shutil.rmtree` but adjust its behaviour to see whether files that
couldn't be deleted are read-only. Windows will not remove them in that case.
"""
defhandler(function:Callable,path:PathLike,_excinfo:Any)->None:
"""Callback for :func:`shutil.rmtree`.
This works as either a ``onexc`` or ``onerror`` style callback.
"""
# Is the error an access error?
os.chmod(path,stat.S_IWUSR)
try:
function(path)
exceptPermissionErrorasex:
ifHIDE_WINDOWS_KNOWN_ERRORS:
fromunittestimportSkipTest
raiseSkipTest(f"FIXME: fails with: PermissionError\n{ex}")fromex
raise
ifsys.platform!="win32":
shutil.rmtree(path)
elifsys.version_info>= (3,12):
shutil.rmtree(path,onexc=handler)
else:
shutil.rmtree(path,onerror=handler)
defrmfile(path:PathLike)->None:
"""Ensure file deleted also on *Windows* where read-only files need special
treatment."""
ifosp.isfile(path):
ifsys.platform=="win32":
os.chmod(path,0o777)
os.remove(path)
defstream_copy(source:BinaryIO,destination:BinaryIO,chunk_size:int=512*1024)->int:
"""Copy all data from the `source` stream into the `destination` stream in chunks
of size `chunk_size`.
:return:
Number of bytes written
"""
br=0
whileTrue:
chunk=source.read(chunk_size)
destination.write(chunk)
br+=len(chunk)
iflen(chunk)<chunk_size:
break
# END reading output stream
returnbr
defjoin_path(a:PathLike,*p:PathLike)->PathLike:
R"""Join path tokens together similar to osp.join, but always use ``/`` instead of
possibly ``\`` on Windows."""
path=os.fspath(a)
forbinp:
b=os.fspath(b)
ifnotb:
continue
ifb.startswith("/"):
path+=b[1:]
elifpath==""orpath.endswith("/"):
path+=b
else:
path+="/"+b
# END for each path token to add
returnpath
ifsys.platform=="win32":
defto_native_path_windows(path:PathLike)->PathLike:
path=os.fspath(path)
returnpath.replace("/","\\")
defto_native_path_linux(path:PathLike)->str:
path=os.fspath(path)
returnpath.replace("\\","/")
to_native_path=to_native_path_windows
else:
# No need for any work on Linux.
defto_native_path_linux(path:PathLike)->str:
returnos.fspath(path)
to_native_path=to_native_path_linux
defjoin_path_native(a:PathLike,*p:PathLike)->PathLike:
R"""Like :func:`join_path`, but makes sure an OS native path is returned.
This is only needed to play it safe on Windows and to ensure nice paths that only
use ``\``.
"""
returnto_native_path(join_path(a,*p))
defassure_directory_exists(path:PathLike,is_file:bool=False)->bool:
"""Make sure that the directory pointed to by path exists.
:param is_file:
If ``True``, `path` is assumed to be a file and handled correctly.
Otherwise it must be a directory.
:return:
``True`` if the directory was created, ``False`` if it already existed.
"""
ifis_file:
path=osp.dirname(path)
# END handle file
ifnotosp.isdir(path):
os.makedirs(path,exist_ok=True)
returnTrue
returnFalse
def_get_exe_extensions()->Sequence[str]:
PATHEXT=os.environ.get("PATHEXT",None)
ifPATHEXT:
returntuple(p.upper()forpinPATHEXT.split(os.pathsep))
elifsys.platform=="win32":
return (".BAT",".COM",".EXE")
else:
return ()
defpy_where(program:str,path:Optional[PathLike]=None)->List[str]:
"""Perform a path search to assist :func:`is_cygwin_git`.
This is not robust for general use. It is an implementation detail of
:func:`is_cygwin_git`. When a search following all shell rules is needed,
:func:`shutil.which` can be used instead.
:note:
Neither this function nor :func:`shutil.which` will predict the effect of an
executable search on a native Windows system due to a :class:`subprocess.Popen`
call without ``shell=True``, because shell and non-shell executable search on
Windows differ considerably.
"""
# From: http://stackoverflow.com/a/377028/548792
winprog_exts=_get_exe_extensions()
defis_exec(fpath:str)->bool:
return (
osp.isfile(fpath)
andos.access(fpath,os.X_OK)
and (
sys.platform!="win32"ornotwinprog_extsorany(fpath.upper().endswith(ext)forextinwinprog_exts)
)
)
progs= []
ifnotpath:
path=os.environ["PATH"]
forfolderinos.fspath(path).split(os.pathsep):
folder=folder.strip('"')
iffolder:
exe_path=osp.join(folder,program)
forfin [exe_path]+ ["%s%s"% (exe_path,e)foreinwinprog_exts]:
ifis_exec(f):
progs.append(f)
returnprogs
def_cygexpath(drive:Optional[str],path:str)->str:
ifosp.isabs(path)andnotdrive:
# Invoked from `cygpath()` directly with `D:Apps\123`?
# It's an error, leave it alone just slashes)
p=path# convert to str if AnyPath given
else:
p=pathandosp.normpath(osp.expandvars(osp.expanduser(path)))
ifosp.isabs(p):
ifdrive:
# Confusing, maybe a remote system should expand vars.
p=path
else:
p=cygpath(p)
elifdrive:
p="/proc/cygdrive/%s/%s"% (drive.lower(),p)
p_str=os.fspath(p)# ensure it is a str and not AnyPath
returnp_str.replace("\\","/")
_cygpath_parsers:Tuple[Tuple[Pattern[str],Callable,bool], ...]= (
# See: https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx
# and: https://www.cygwin.com/cygwin-ug-net/using.html#unc-paths
(
re.compile(r"\\\\\?\\UNC\\([^\\]+)\\([^\\]+)(?:\\(.*))?"),
(lambdaserver,share,rest_path:"//%s/%s/%s"% (server,share,rest_path.replace("\\","/"))),
False,
),
(re.compile(r"\\\\\?\\(\w):[/\\](.*)"), (_cygexpath),False),
(re.compile(r"(\w):[/\\](.*)"), (_cygexpath),False),
(re.compile(r"file:(.*)",re.I), (lambdarest_path:rest_path),True),
(re.compile(r"(\w{2,}:.*)"), (lambdaurl:url),False),# remote URL, do nothing
)
defcygpath(path:str)->str:
"""Use :meth:`git.cmd.Git.polish_url` instead, that works on any environment."""
path=os.fspath(path)# Ensure is str and not AnyPath.
# Fix to use Paths when 3.5 dropped. Or to be just str if only for URLs?
ifnotpath.startswith(("/cygdrive","//","/proc/cygdrive")):
forregex,parser,recursein_cygpath_parsers:
match=regex.match(path)
ifmatch:
path=parser(*match.groups())
ifrecurse:
path=cygpath(path)
break
else:
path=_cygexpath(None,path)
returnpath
_decygpath_regex=re.compile(r"(?:/proc)?/cygdrive/(\w)(/.*)?")
defdecygpath(path:PathLike)->str:
path=os.fspath(path)
m=_decygpath_regex.match(path)
ifm:
drive,rest_path=m.groups()
path="%s:%s"% (drive.upper(),rest_pathor"")
returnpath.replace("/","\\")
#: Store boolean flags denoting if a specific Git executable
#: is from a Cygwin installation (since `cache_lru()` unsupported on PY2).
_is_cygwin_cache:Dict[str,Optional[bool]]= {}
def_is_cygwin_git(git_executable:str)->bool:
is_cygwin=_is_cygwin_cache.get(git_executable)# type: Optional[bool]
ifis_cygwinisNone:
is_cygwin=False
try:
git_dir=osp.dirname(git_executable)
ifnotgit_dir:
res=py_where(git_executable)
git_dir=osp.dirname(res[0])ifreselse""
# Just a name given, not a real path.
uname_cmd=osp.join(git_dir,"uname")
ifnot (Path(uname_cmd).is_file()andos.access(uname_cmd,os.X_OK)):
_logger.debug(f"Failed checking if running in CYGWIN:{uname_cmd} is not an executable")
_is_cygwin_cache[git_executable]=is_cygwin
returnis_cygwin
process=subprocess.Popen([uname_cmd],stdout=subprocess.PIPE,universal_newlines=True)
uname_out,_=process.communicate()
# retcode = process.poll()
is_cygwin="CYGWIN"inuname_out
exceptExceptionasex:
_logger.debug("Failed checking if running in CYGWIN due to: %r",ex)
_is_cygwin_cache[git_executable]=is_cygwin
returnis_cygwin
@overload
defis_cygwin_git(git_executable:None)->Literal[False]: ...
@overload
defis_cygwin_git(git_executable:PathLike)->bool: ...
defis_cygwin_git(git_executable:Union[None,PathLike])->bool:
# TODO: when py3.7 support is dropped, use the new interpolation f"{variable=}"
_logger.debug(f"sys.platform={sys.platform!r}, git_executable={git_executable!r}")
ifsys.platform!="cygwin":
returnFalse
elifgit_executableisNone:
returnFalse
else:
return_is_cygwin_git(str(git_executable))
defget_user_id()->str:
""":return: String identifying the currently active system user as ``name@node``"""
return"%s@%s"% (getpass.getuser(),platform.node())
deffinalize_process(proc:Union[subprocess.Popen,"Git.AutoInterrupt"],**kwargs:Any)->None:
"""Wait for the process (clone, fetch, pull or push) and handle its errors
accordingly."""
# TODO: No close proc-streams??
proc.wait(**kwargs)
@overload
defexpand_path(p:None,expand_vars:bool= ...)->None: ...
@overload
defexpand_path(p:PathLike,expand_vars:bool= ...)->str:
# TODO: Support for Python 3.5 has been dropped, so these overloads can be improved.
...
defexpand_path(p:Union[None,PathLike],expand_vars:bool=True)->Optional[PathLike]:
ifisinstance(p,Path):
returnp.resolve()
try:
p=osp.expanduser(p)# type: ignore[arg-type]
ifexpand_vars:
p=osp.expandvars(p)
returnosp.normpath(osp.abspath(p))
exceptException:
returnNone
defremove_password_if_present(cmdline:Sequence[str])->List[str]:
"""Parse any command line argument and if one of the elements is an URL with a
username and/or password, replace them by stars (in-place).
If nothing is found, this just returns the command line as-is.
This should be used for every log line that print a command line, as well as
exception messages.
"""
new_cmdline= []
forindex,to_parseinenumerate(cmdline):
new_cmdline.append(to_parse)
try:
url=urlsplit(to_parse)
# Remove password from the URL if present.
ifurl.passwordisNoneandurl.usernameisNone:
continue
ifurl.passwordisnotNone:
url=url._replace(netloc=url.netloc.replace(url.password,"*****"))
ifurl.usernameisnotNone:
url=url._replace(netloc=url.netloc.replace(url.username,"*****"))
new_cmdline[index]=urlunsplit(url)
exceptValueError:
# This is not a valid URL.
continue
returnnew_cmdline
# } END utilities
# { Classes
classRemoteProgress:
"""Handler providing an interface to parse progress information emitted by
:manpage:`git-push(1)` and :manpage:`git-fetch(1)` and to dispatch callbacks
allowing subclasses to react to the progress."""
_num_op_codes:int=9
(
BEGIN,
END,
COUNTING,
COMPRESSING,
WRITING,
RECEIVING,
RESOLVING,
FINDING_SOURCES,
CHECKING_OUT,
)= [1<<xforxinrange(_num_op_codes)]
STAGE_MASK=BEGIN|END
OP_MASK=~STAGE_MASK
DONE_TOKEN="done."
TOKEN_SEPARATOR=", "
__slots__= (
"_cur_line",
"_seen_ops",
"error_lines",# Lines that started with 'error:' or 'fatal:'.
"other_lines",# Lines not denoting progress (i.e.g. push-infos).
)
re_op_absolute=re.compile(r"(remote: )?([\w\s]+):\s+()(\d+)()(.*)")
re_op_relative=re.compile(r"(remote: )?([\w\s]+):\s+(\d+)% \((\d+)/(\d+)\)(.*)")
def__init__(self)->None:
self._seen_ops:List[int]= []
self._cur_line:Optional[str]=None
self.error_lines:List[str]= []
self.other_lines:List[str]= []
def_parse_progress_line(self,line:AnyStr)->None:
"""Parse progress information from the given line as retrieved by
:manpage:`git-push(1)` or :manpage:`git-fetch(1)`.
- Lines that do not contain progress info are stored in :attr:`other_lines`.
- Lines that seem to contain an error (i.e. start with ``error:`` or ``fatal:``)
are stored in :attr:`error_lines`.
"""
# handle
# Counting objects: 4, done.
# Compressing objects: 50% (1/2)
# Compressing objects: 100% (2/2)
# Compressing objects: 100% (2/2), done.
ifisinstance(line,bytes):# mypy argues about ternary assignment.
line_str=line.decode("utf-8")
else:
line_str=line
self._cur_line=line_str
ifself._cur_line.startswith(("error:","fatal:")):
self.error_lines.append(self._cur_line)
return
cur_count,max_count=None,None
match=self.re_op_relative.match(line_str)
ifmatchisNone:
match=self.re_op_absolute.match(line_str)
ifnotmatch:
self.line_dropped(line_str)
self.other_lines.append(line_str)
return
# END could not get match
op_code=0
_remote,op_name,_percent,cur_count,max_count,message=match.groups()
# Get operation ID.
ifop_name=="Counting objects":
op_code|=self.COUNTING
elifop_name=="Compressing objects":
op_code|=self.COMPRESSING
elifop_name=="Writing objects":
op_code|=self.WRITING
elifop_name=="Receiving objects":
op_code|=self.RECEIVING
elifop_name=="Resolving deltas":
op_code|=self.RESOLVING
elifop_name=="Finding sources":
op_code|=self.FINDING_SOURCES
elifop_name=="Checking out files":
op_code|=self.CHECKING_OUT
else:
# Note: On Windows it can happen that partial lines are sent.
# Hence we get something like "CompreReceiving objects", which is
# a blend of "Compressing objects" and "Receiving objects".
# This can't really be prevented, so we drop the line verbosely
# to make sure we get informed in case the process spits out new
# commands at some point.
self.line_dropped(line_str)
# Note: Don't add this line to the other lines, as we have to silently
# drop it.
return
# END handle op code
# Figure out stage.
ifop_codenotinself._seen_ops:
self._seen_ops.append(op_code)
op_code|=self.BEGIN
# END begin opcode
ifmessageisNone:
message=""
# END message handling
message=message.strip()
ifmessage.endswith(self.DONE_TOKEN):
op_code|=self.END
message=message[:-len(self.DONE_TOKEN)]
# END end message handling
message=message.strip(self.TOKEN_SEPARATOR)
self.update(
op_code,
cur_countandfloat(cur_count),
max_countandfloat(max_count),
message,
)
defnew_message_handler(self)->Callable[[str],None]:
"""
:return:
A progress handler suitable for :func:`~git.cmd.handle_process_output`,
passing lines on to this progress handler in a suitable format.
"""
defhandler(line:AnyStr)->None:
returnself._parse_progress_line(line.rstrip())
# END handler
returnhandler
defline_dropped(self,line:str)->None:
"""Called whenever a line could not be understood and was therefore dropped."""
pass
defupdate(
self,
op_code:int,
cur_count:Union[str,float],
max_count:Union[str,float,None]=None,
message:str="",
)->None:
"""Called whenever the progress changes.
:param op_code:
Integer allowing to be compared against Operation IDs and stage IDs.
Stage IDs are :const:`BEGIN` and :const:`END`. :const:`BEGIN` will only be
set once for each Operation ID as well as :const:`END`. It may be that
:const:`BEGIN` and :const:`END` are set at once in case only one progress
message was emitted due to the speed of the operation. Between
:const:`BEGIN` and :const:`END`, none of these flags will be set.
Operation IDs are all held within the :const:`OP_MASK`. Only one Operation
ID will be active per call.
:param cur_count:
Current absolute count of items.
:param max_count:
The maximum count of items we expect. It may be ``None`` in case there is no
maximum number of items or if it is (yet) unknown.
:param message:
In case of the :const:`WRITING` operation, it contains the amount of bytes
transferred. It may possibly be used for other purposes as well.
:note:
You may read the contents of the current line in
:attr:`self._cur_line <_cur_line>`.
"""
pass
classCallableRemoteProgress(RemoteProgress):
"""A :class:`RemoteProgress` implementation forwarding updates to any callable.
:note:
Like direct instances of :class:`RemoteProgress`, instances of this
:class:`CallableRemoteProgress` class are not themselves directly callable.
Rather, instances of this class wrap a callable and forward to it. This should
therefore not be confused with :class:`git.types.CallableProgress`.
"""
__slots__= ("_callable",)
def__init__(self,fn:Callable)->None:
self._callable=fn
super().__init__()
defupdate(self,*args:Any,**kwargs:Any)->None:
self._callable(*args,**kwargs)
classActor:
"""Actors hold information about a person acting on the repository. They can be
committers and authors or anything with a name and an email as mentioned in the git
log entries."""
# PRECOMPILED REGEX
name_only_regex=re.compile(r"<(.*)>")
name_email_regex=re.compile(r"(.*) <(.*?)>")
# ENVIRONMENT VARIABLES
# These are read when creating new commits.
env_author_name="GIT_AUTHOR_NAME"
env_author_email="GIT_AUTHOR_EMAIL"
env_committer_name="GIT_COMMITTER_NAME"
env_committer_email="GIT_COMMITTER_EMAIL"
# CONFIGURATION KEYS
conf_name="name"
conf_email="email"
__slots__= ("name","email")
def__init__(self,name:Optional[str],email:Optional[str])->None:
self.name=name
self.email=email
def__eq__(self,other:Any)->bool:
returnself.name==other.nameandself.email==other.email
def__ne__(self,other:Any)->bool:
returnnot (self==other)
def__hash__(self)->int:
returnhash((self.name,self.email))
def__str__(self)->str:
returnself.nameifself.nameelse""
def__repr__(self)->str:
return'<git.Actor "%s <%s>">'% (self.name,self.email)
@classmethod
def_from_string(cls,string:str)->"Actor":
"""Create an :class:`Actor` from a string.
:param string:
The string, which is expected to be in regular git format::
John Doe <jdoe@example.com>
:return:
:class:`Actor`
"""
m=cls.name_email_regex.search(string)
ifm:
name,email=m.groups()
returnActor(name,email)
else:
m=cls.name_only_regex.search(string)
ifm:
returnActor(m.group(1),None)
# Assume the best and use the whole string as name.
returnActor(string,None)
# END special case name
# END handle name/email matching
@classmethod
def_main_actor(
cls,
env_name:str,
env_email:str,
config_reader:Union[None,"GitConfigParser","SectionConstraint"]=None,
)->"Actor":
actor=Actor("","")
user_id=None# We use this to avoid multiple calls to getpass.getuser().
defdefault_email()->str:
nonlocaluser_id
ifnotuser_id:
user_id=get_user_id()
returnuser_id
defdefault_name()->str:
returndefault_email().split("@")[0]
forattr,evar,cvar,defaultin (
("name",env_name,cls.conf_name,default_name),
("email",env_email,cls.conf_email,default_email),
):
try:
val=os.environ[evar]
setattr(actor,attr,val)
exceptKeyError:
ifconfig_readerisnotNone:
try:
val=config_reader.get("user",cvar)
exceptException:
val=default()
setattr(actor,attr,val)
# END config-reader handling
ifnotgetattr(actor,attr):
setattr(actor,attr,default())
# END handle name
# END for each item to retrieve
returnactor
@classmethod
defcommitter(cls,config_reader:Union[None,"GitConfigParser","SectionConstraint"]=None)->"Actor":
"""
:return:
:class:`Actor` instance corresponding to the configured committer. It
behaves similar to the git implementation, such that the environment will
override configuration values of `config_reader`. If no value is set at all,
it will be generated.
:param config_reader:
ConfigReader to use to retrieve the values from in case they are not set in
the environment.
"""
returncls._main_actor(cls.env_committer_name,cls.env_committer_email,config_reader)
@classmethod
defauthor(cls,config_reader:Union[None,"GitConfigParser","SectionConstraint"]=None)->"Actor":
"""Same as :meth:`committer`, but defines the main author. It may be specified
in the environment, but defaults to the committer."""
returncls._main_actor(cls.env_author_name,cls.env_author_email,config_reader)
classStats:
"""Represents stat information as presented by git at the end of a merge. It is
created from the output of a diff operation.
Example::
c = Commit( sha1 )
s = c.stats
s.total # full-stat-dict
s.files # dict( filepath : stat-dict )
``stat-dict``
A dictionary with the following keys and values::
deletions = number of deleted lines as int
insertions = number of inserted lines as int
lines = total number of lines changed as int, or deletions + insertions
change_type = type of change as str, A|C|D|M|R|T|U|X|B
``full-stat-dict``
In addition to the items in the stat-dict, it features additional information::
files = number of changed files as int
"""
__slots__= ("total","files")
def__init__(self,total:Total_TD,files:Dict[PathLike,Files_TD])->None:
self.total=total
self.files=files
@classmethod
def_list_from_string(cls,repo:"Repo",text:str)->"Stats":
"""Create a :class:`Stats` object from output retrieved by
:manpage:`git-diff(1)`.
:return:
:class:`git.Stats`
"""
hsh:HSH_TD= {
"total": {"insertions":0,"deletions":0,"lines":0,"files":0},
"files": {},
}
forlineintext.splitlines():
(change_type,raw_insertions,raw_deletions,filename)=line.split("\t")
insertions=raw_insertions!="-"andint(raw_insertions)or0
deletions=raw_deletions!="-"andint(raw_deletions)or0
hsh["total"]["insertions"]+=insertions
hsh["total"]["deletions"]+=deletions
hsh["total"]["lines"]+=insertions+deletions
hsh["total"]["files"]+=1
files_dict:Files_TD= {
"insertions":insertions,
"deletions":deletions,
"lines":insertions+deletions,
"change_type":change_type,
}
hsh["files"][filename.strip()]=files_dict
returnStats(hsh["total"],hsh["files"])
classIndexFileSHA1Writer:
"""Wrapper around a file-like object that remembers the SHA1 of the data written to
it. It will write a sha when the stream is closed or if asked for explicitly using
:meth:`write_sha`.
Only useful to the index file.
:note:
Based on the dulwich project.
"""
__slots__= ("f","sha1")
def__init__(self,f:IO)->None:
self.f=f
self.sha1=make_sha(b"")
defwrite(self,data:AnyStr)->int:
self.sha1.update(data)
returnself.f.write(data)
defwrite_sha(self)->bytes:
sha=self.sha1.digest()
self.f.write(sha)
returnsha
defclose(self)->bytes:
sha=self.write_sha()
self.f.close()
returnsha
deftell(self)->int:
returnself.f.tell()