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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/
from __future__ import annotations
__all__ = ["Repo"]
import gc
import logging
import os
import os.path as osp
from pathlib import Path
import re
import shlex
import sys
import warnings
import gitdb
from gitdb.db.loose import LooseObjectDB
from gitdb.exc import BadObject
from git.cmd import Git, handle_process_output
from git.compat import defenc, safe_decode
from git.config import GitConfigParser
from git.db import GitCmdObjectDB
from git.exc import (
GitCommandError,
InvalidGitRepositoryError,
NoSuchPathError,
)
from git.index import IndexFile
from git.objects import Submodule, RootModule, Commit
from git.refs import HEAD, Head, Reference, TagReference
from git.remote import Remote, add_progress, to_progress_instance
from git.util import (
Actor,
cygpath,
expand_path,
finalize_process,
hex_to_bin,
remove_password_if_present,
)
from .fun import (
find_submodule_git_dir,
find_worktree_git_dir,
is_git_dir,
rev_parse,
touch,
)
# typing ------------------------------------------------------
from git.types import (
CallableProgress,
Commit_ish,
Lit_config_levels,
PathLike,
TBD,
Tree_ish,
assert_never,
)
from typing import (
Any,
BinaryIO,
Callable,
Dict,
Iterator,
List,
Mapping,
NamedTuple,
Optional,
Sequence,
TYPE_CHECKING,
TextIO,
Tuple,
Type,
Union,
cast,
)
from git.types import ConfigLevels_Tup, TypedDict
if TYPE_CHECKING:
from git.objects import Tree
from git.objects.submodule.base import UpdateProgress
from git.refs.symbolic import SymbolicReference
from git.remote import RemoteProgress
from git.util import IterableList
# -----------------------------------------------------------
_logger = logging.getLogger(__name__)
class BlameEntry(NamedTuple):
commit: Dict[str, Commit]
linenos: range
orig_path: Optional[str]
orig_linenos: range
class Repo:
"""Represents a git repository and allows you to query references, create commit
information, generate diffs, create and clone repositories, and query the log.
The following attributes are worth using:
* :attr:`working_dir` is the working directory of the git command, which is the
working tree directory if available or the ``.git`` directory in case of bare
repositories.
* :attr:`working_tree_dir` is the working tree directory, but will return ``None``
if we are a bare repository.
* :attr:`git_dir` is the ``.git`` repository directory, which is always set.
"""
DAEMON_EXPORT_FILE = "git-daemon-export-ok"
# Must exist, or __del__ will fail in case we raise on `__init__()`.
git = cast("Git", None)
working_dir: PathLike
"""The working directory of the git command."""
# stored as string for easier processing, but annotated as path for clearer intention
_working_tree_dir: Optional[PathLike] = None
git_dir: PathLike
"""The ``.git`` repository directory."""
_common_dir: PathLike = ""
# Precompiled regex
re_whitespace = re.compile(r"\s+")
re_hexsha_only = re.compile(r"^[0-9A-Fa-f]{40}$")
re_hexsha_shortened = re.compile(r"^[0-9A-Fa-f]{4,40}$")
re_envvars = re.compile(r"(\$(\{\s?)?[a-zA-Z_]\w*(\}\s?)?|%\s?[a-zA-Z_]\w*\s?%)")
re_author_committer_start = re.compile(r"^(author|committer)")
re_tab_full_line = re.compile(r"^\t(.*)$")
unsafe_git_init_options = [
# Can install hooks that execute during later Git commands:
"--template",
# Redirects the repository metadata to a caller-controlled path:
"--separate-git-dir",
]
"""Options to :manpage:`git-init(1)` that permit unsafe code execution or I/O."""
unsafe_git_clone_options = [
# Executes arbitrary commands:
"--upload-pack",
"-u",
# Can override configuration variables that execute arbitrary commands:
"--config",
"-c",
# Can install hooks that execute during clone:
"--template",
# Redirects the repository metadata to a caller-controlled path:
"--separate-git-dir",
# Fetches from an additional caller-controlled URI:
"--bundle-uri",
]
"""Options to :manpage:`git-clone(1)` that permit unsafe command execution or I/O.
The ``--upload-pack``/``-u`` option allows users to execute arbitrary commands
directly:
https://git-scm.com/docs/git-clone#Documentation/git-clone.txt---upload-packltupload-packgt
The ``--config``/``-c`` option allows users to override configuration variables like
``protocol.allow`` and ``core.gitProxy`` to execute arbitrary commands:
https://git-scm.com/docs/git-clone#Documentation/git-clone.txt---configltkeygtltvaluegt
The ``--template`` option can install hooks that execute during clone:
https://git-scm.com/docs/git-clone#Documentation/git-clone.txt---templatetemplate-directory
The ``--bundle-uri`` option fetches from an additional URI before fetching from the
clone URL. An untrusted value can therefore make Git access local files or
unintended network resources:
https://git-scm.com/docs/git-clone#Documentation/git-clone.txt---bundle-uriuri
"""
unsafe_git_archive_options = [
# Allows arbitrary command execution through the remote git-upload-archive command.
"--exec",
# Writes output to a caller-controlled filesystem path.
"--output",
"-o",
# Reads from a caller-controlled filesystem path:
"--add-file",
# Injects a caller-controlled path and contents:
"--add-virtual-file",
]
unsafe_git_revision_options = [
# This option allows output to be written to arbitrary files before revision parsing.
"--output",
"-o",
]
unsafe_git_blame_options = unsafe_git_revision_options + [
# These options read from arbitrary files and expose their contents through blame output.
"--contents",
"-S",
"--ignore-revs-file",
]
unsafe_git_diff_options = unsafe_git_revision_options + [
# Reads caller-controlled order patterns from an arbitrary file.
"-O",
"--orderfile",
]
# Invariants
config_level: ConfigLevels_Tup = ("system", "user", "global", "repository")
"""Represents the configuration level of a configuration file."""
# Subclass configuration
GitCommandWrapperType = Git
"""Subclasses may easily bring in their own custom types by placing a constructor or
type here."""
def __init__(
self,
path: Optional[PathLike] = None,
odbt: Type[LooseObjectDB] = GitCmdObjectDB,
search_parent_directories: bool = False,
expand_vars: bool = True,
) -> None:
R"""Create a new :class:`Repo` instance.
:param path:
The path to either the worktree directory or the .git directory itself::
repo = Repo("/Users/mtrier/Development/git-python")
repo = Repo("/Users/mtrier/Development/git-python.git")
repo = Repo("~/Development/git-python.git")
repo = Repo("$REPOSITORIES/Development/git-python.git")
repo = Repo(R"C:\Users\mtrier\Development\git-python\.git")
- In *Cygwin*, `path` may be a ``cygdrive/...`` prefixed path.
- If `path` is ``None`` or an empty string, :envvar:`GIT_DIR` is used. If
that environment variable is absent or empty, the current directory is
used.
:param odbt:
Object DataBase type - a type which is constructed by providing the
directory containing the database objects, i.e. ``.git/objects``. It will be
used to access all object data.
:param search_parent_directories:
If ``True``, all parent directories will be searched for a valid repo as
well.
Please note that this was the default behaviour in older versions of
GitPython, which is considered a bug though.
:raise git.exc.InvalidGitRepositoryError:
:raise git.exc.NoSuchPathError:
:return:
:class:`Repo`
"""
epath = path or os.getenv("GIT_DIR")
if not epath:
epath = os.getcwd()
epath = os.fspath(epath)
if Git.is_cygwin():
# Given how the tests are written, this seems more likely to catch Cygwin
# git used from Windows than Windows git used from Cygwin. Therefore
# changing to Cygwin-style paths is the relevant operation.
epath = cygpath(epath)
if expand_vars and re.search(self.re_envvars, epath):
warnings.warn(
"The use of environment variables in paths is deprecated"
+ "\nfor security reasons and may be removed in the future!!",
stacklevel=1,
)
epath = expand_path(epath, expand_vars)
if epath is not None:
if not os.path.exists(epath):
raise NoSuchPathError(epath)
# Walk up the path to find the `.git` dir.
curpath = epath
git_dir = None
while curpath:
# ABOUT osp.NORMPATH
# It's important to normalize the paths, as submodules will otherwise
# initialize their repo instances with paths that depend on path-portions
# that will not exist after being removed. It's just cleaner.
if (
osp.isfile(osp.join(curpath, "gitdir"))
and osp.isfile(osp.join(curpath, "commondir"))
and osp.isfile(osp.join(curpath, "HEAD"))
):
git_dir = curpath
if "GIT_WORK_TREE" in os.environ:
self._working_tree_dir = os.getenv("GIT_WORK_TREE")
else:
# Linked worktree administrative directories store the path to the
# worktree's .git file in their gitdir file (without "gitdir: " prefix).
with open(osp.join(git_dir, "gitdir")) as fp:
worktree_gitfile = fp.read().strip()
if not osp.isabs(worktree_gitfile):
worktree_gitfile = osp.normpath(osp.join(git_dir, worktree_gitfile))
self._working_tree_dir = osp.dirname(worktree_gitfile)
break
if is_git_dir(curpath):
git_dir = curpath
# from man git-config : core.worktree
# Set the path to the root of the working tree. If GIT_COMMON_DIR
# environment variable is set, core.worktree is ignored and not used for
# determining the root of working tree. This can be overridden by the
# GIT_WORK_TREE environment variable. The value can be an absolute path
# or relative to the path to the .git directory, which is either
# specified by GIT_DIR, or automatically discovered. If GIT_DIR is
# specified but none of GIT_WORK_TREE and core.worktree is specified,
# the current working directory is regarded as the top level of your
# working tree.
self._working_tree_dir = os.path.dirname(git_dir)
if os.environ.get("GIT_COMMON_DIR") is None:
gitconf = self._config_reader("repository", git_dir)
if gitconf.has_option("core", "worktree"):
self._working_tree_dir = gitconf.get("core", "worktree")
if "GIT_WORK_TREE" in os.environ:
self._working_tree_dir = os.getenv("GIT_WORK_TREE")
break
dotgit = osp.join(curpath, ".git")
sm_gitpath = find_submodule_git_dir(dotgit)
if sm_gitpath is not None:
git_dir = osp.normpath(sm_gitpath)
sm_gitpath = find_submodule_git_dir(dotgit)
if sm_gitpath is None:
sm_gitpath = find_worktree_git_dir(dotgit)
if sm_gitpath is not None:
# worktrees can use relative paths as of Git 2.48, so we join to curpath
git_dir = osp.normpath(osp.join(curpath, sm_gitpath))
self._working_tree_dir = curpath
break
if not search_parent_directories:
break
curpath, tail = osp.split(curpath)
if not tail:
break
# END while curpath
if git_dir is None:
raise InvalidGitRepositoryError(epath)
self.git_dir = git_dir
self._bare = False
try:
self._bare = self.config_reader("repository").getboolean("core", "bare")
except Exception:
# Let's not assume the option exists, although it should.
pass
try:
common_dir = (Path(self.git_dir) / "commondir").read_text().splitlines()[0].strip()
self._common_dir = osp.join(self.git_dir, common_dir)
except OSError:
self._common_dir = ""
# Adjust the working directory in case we are actually bare - we didn't know
# that in the first place.
if self._bare:
self._working_tree_dir = None
# END working dir handling
self.working_dir: PathLike = self._working_tree_dir or self.common_dir
self.git = self.GitCommandWrapperType(self.working_dir)
# Special handling, in special times.
rootpath = osp.join(self.common_dir, "objects")
if issubclass(odbt, GitCmdObjectDB):
self.odb = odbt(rootpath, self.git)
else:
self.odb = odbt(rootpath)
def __enter__(self) -> "Repo":
return self
def __exit__(self, *args: Any) -> None:
self.close()
def __del__(self) -> None:
try:
self.close()
except Exception:
pass
def close(self) -> None:
if self.git:
self.git.clear_cache()
# Tempfiles objects on Windows are holding references to open files until
# they are collected by the garbage collector, thus preventing deletion.
# TODO: Find these references and ensure they are closed and deleted
# synchronously rather than forcing a gc collection.
if sys.platform == "win32":
gc.collect()
gitdb.util.mman.collect()
if sys.platform == "win32":
gc.collect()
def __eq__(self, rhs: object) -> bool:
if isinstance(rhs, Repo):
return self.git_dir == rhs.git_dir
return False
def __ne__(self, rhs: object) -> bool:
return not self.__eq__(rhs)
def __hash__(self) -> int:
return hash(self.git_dir)
@property
def description(self) -> str:
"""The project's description"""
filename = osp.join(self.git_dir, "description")
with open(filename, "rb") as fp:
return fp.read().rstrip().decode(defenc)
@description.setter
def description(self, descr: str) -> None:
filename = osp.join(self.git_dir, "description")
with open(filename, "wb") as fp:
fp.write((descr + "\n").encode(defenc))
@property
def working_tree_dir(self) -> Optional[PathLike]:
"""
:return:
The working tree directory of our git repository.
If this is a bare repository, ``None`` is returned.
"""
return self._working_tree_dir
@property
def common_dir(self) -> PathLike:
"""
:return:
The git dir that holds everything except possibly HEAD, FETCH_HEAD,
ORIG_HEAD, COMMIT_EDITMSG, index, and logs/.
"""
return self._common_dir or self.git_dir
@property
def bare(self) -> bool:
""":return: ``True`` if the repository is bare"""
return self._bare
@property
def heads(self) -> "IterableList[Head]":
"""A list of :class:`~git.refs.head.Head` objects representing the branch heads
in this repo.
:return:
``git.IterableList(Head, ...)``
"""
return Head.list_items(self)
@property
def branches(self) -> "IterableList[Head]":
"""Alias for heads.
A list of :class:`~git.refs.head.Head` objects representing the branch heads
in this repo.
:return:
``git.IterableList(Head, ...)``
"""
return self.heads
@property
def references(self) -> "IterableList[Reference]":
"""A list of :class:`~git.refs.reference.Reference` objects representing tags,
heads and remote references.
:return:
``git.IterableList(Reference, ...)``
"""
return Reference.list_items(self)
@property
def refs(self) -> "IterableList[Reference]":
"""Alias for references.
A list of :class:`~git.refs.reference.Reference` objects representing tags,
heads and remote references.
:return:
``git.IterableList(Reference, ...)``
"""
return self.references
@property
def index(self) -> "IndexFile":
"""
:return:
A :class:`~git.index.base.IndexFile` representing this repository's index.
:note:
This property can be expensive, as the returned
:class:`~git.index.base.IndexFile` will be reinitialized.
It is recommended to reuse the object.
"""
return IndexFile(self)
@property
def head(self) -> "HEAD":
"""
:return:
:class:`~git.refs.head.HEAD` object pointing to the current head reference
Use :attr:`~git.refs.head.HEAD.hexsha` for the current object ID without
loading a commit. It returns ``None`` for an unborn branch.
"""
return HEAD(self, "HEAD")
@property
def remotes(self) -> "IterableList[Remote]":
"""A list of :class:`~git.remote.Remote` objects allowing to access and
manipulate remotes.
:return:
``git.IterableList(Remote, ...)``
"""
return Remote.list_items(self)
def remote(self, name: str = "origin") -> "Remote":
""":return: The remote with the specified name
:raise ValueError:
If no remote with such a name exists.
"""
r = Remote(self, name)
if not r.exists():
raise ValueError("Remote named '%s' didn't exist" % name)
return r
# { Submodules
@property
def submodules(self) -> "IterableList[Submodule]":
"""
:return:
git.IterableList(Submodule, ...) of direct submodules available from the
current head
"""
return Submodule.list_items(self)
def submodule(self, name: str) -> "Submodule":
""":return: The submodule with the given name
:raise ValueError:
If no such submodule exists.
"""
try:
return self.submodules[name]
except IndexError as e:
raise ValueError("Didn't find submodule named %r" % name) from e
# END exception handling
def create_submodule(self, *args: Any, **kwargs: Any) -> Submodule:
"""Create a new submodule.
:note:
For a description of the applicable parameters, see the documentation of
:meth:`Submodule.add <git.objects.submodule.base.Submodule.add>`.
:return:
The created submodule.
"""
return Submodule.add(self, *args, **kwargs)
def iter_submodules(self, *args: Any, **kwargs: Any) -> Iterator[Submodule]:
"""An iterator yielding Submodule instances.
See the :class:`~git.objects.util.Traversable` interface for a description of `args`
and `kwargs`.
:return:
Iterator
"""
return RootModule(self).traverse(*args, **kwargs)
def submodule_update(self, *args: Any, **kwargs: Any) -> RootModule:
"""Update the submodules, keeping the repository consistent as it will
take the previous state into consideration.
:note:
For more information, please see the documentation of
:meth:`RootModule.update <git.objects.submodule.root.RootModule.update>`.
"""
return RootModule(self).update(*args, **kwargs)
# }END submodules
@property
def tags(self) -> "IterableList[TagReference]":
"""A list of :class:`~git.refs.tag.TagReference` objects that are available in
this repo.
:return:
``git.IterableList(TagReference, ...)``
"""
return TagReference.list_items(self)
def tag(self, path: PathLike) -> TagReference:
"""
:return:
:class:`~git.refs.tag.TagReference` object, reference pointing to a
:class:`~git.objects.commit.Commit` or tag
:param path:
Path to the tag reference, e.g. ``0.1.5`` or ``tags/0.1.5``.
"""
full_path = self._to_full_tag_path(path)
return TagReference(self, full_path)
@staticmethod
def _to_full_tag_path(path: PathLike) -> str:
path_str = str(path)
if path_str.startswith(TagReference._common_path_default + "/"):
return path_str
if path_str.startswith(TagReference._common_default + "/"):
return Reference._common_path_default + "/" + path_str
else:
return TagReference._common_path_default + "/" + path_str
def create_head(
self,
path: PathLike,
commit: Union["SymbolicReference", "str"] = "HEAD",
force: bool = False,
logmsg: Optional[str] = None,
) -> "Head":
"""Create a new head within the repository.
:note:
For more documentation, please see the
:meth:`Head.create <git.refs.head.Head.create>` method.
:return:
Newly created :class:`~git.refs.head.Head` Reference.
"""
return Head.create(self, path, commit, logmsg, force)
def delete_head(self, *heads: "Union[str, Head]", **kwargs: Any) -> None:
"""Delete the given heads.
:param kwargs:
Additional keyword arguments to be passed to :manpage:`git-branch(1)`.
"""
return Head.delete(self, *heads, **kwargs)
def create_tag(
self,
path: PathLike,
ref: Union[str, "SymbolicReference"] = "HEAD",
message: Optional[str] = None,
force: bool = False,
**kwargs: Any,
) -> TagReference:
"""Create a new tag reference.
:note:
For more documentation, please see the
:meth:`TagReference.create <git.refs.tag.TagReference.create>` method.
:return:
:class:`~git.refs.tag.TagReference` object
"""
return TagReference.create(self, path, ref, message, force, **kwargs)
def delete_tag(self, *tags: TagReference) -> None:
"""Delete the given tag references."""
return TagReference.delete(self, *tags)
def create_remote(self, name: str, url: str, **kwargs: Any) -> Remote:
"""Create a new remote.
For more information, please see the documentation of the
:meth:`Remote.create <git.remote.Remote.create>` method.
:return:
:class:`~git.remote.Remote` reference
"""
return Remote.create(self, name, url, **kwargs)
def delete_remote(self, remote: "Remote") -> str:
"""Delete the given remote."""
return Remote.remove(self, remote)
def _get_config_path(self, config_level: Lit_config_levels, git_dir: Optional[PathLike] = None) -> str:
if git_dir is None:
git_dir = self.git_dir
# We do not support an absolute path of the gitconfig on Windows.
# Use the global config instead.
if sys.platform == "win32" and config_level == "system":
config_level = "global"
if config_level == "system":
return "/etc/gitconfig"
elif config_level == "user":
config_home = os.environ.get("XDG_CONFIG_HOME") or osp.join(os.environ.get("HOME", "~"), ".config")
return osp.normpath(osp.expanduser(osp.join(config_home, "git", "config")))
elif config_level == "global":
return osp.normpath(osp.expanduser("~/.gitconfig"))
elif config_level == "repository":
repo_dir = self._common_dir or git_dir
if not repo_dir:
raise NotADirectoryError
else:
return osp.normpath(osp.join(repo_dir, "config"))
else:
assert_never( # type: ignore[unreachable]
config_level,
ValueError(f"Invalid configuration level: {config_level!r}"),
)
def config_reader(
self,
config_level: Optional[Lit_config_levels] = None,
) -> GitConfigParser:
"""
:return:
:class:`~git.config.GitConfigParser` allowing to read the full git
configuration, but not to write it.
The configuration will include values from the system, user and repository
configuration files.
:param config_level:
For possible values, see the :meth:`config_writer` method. If ``None``, all
applicable levels will be used. Specify a level in case you know which file
you wish to read to prevent reading multiple files.
:note:
On Windows, system configuration cannot currently be read as the path is
unknown, instead the global path will be used.
"""
return self._config_reader(config_level=config_level)
def _config_reader(
self,
config_level: Optional[Lit_config_levels] = None,
git_dir: Optional[PathLike] = None,
) -> GitConfigParser:
if config_level is None:
files = [self._get_config_path(f, git_dir) for f in self.config_level if f]
else:
files = [self._get_config_path(config_level, git_dir)]
return GitConfigParser(files, read_only=True, repo=self)
def config_writer(self, config_level: Lit_config_levels = "repository") -> GitConfigParser:
"""
:return:
A :class:`~git.config.GitConfigParser` allowing to write values of the
specified configuration file level. Config writers should be retrieved, used
to change the configuration, and written right away as they will lock the
configuration file in question and prevent other's to write it.
:param config_level:
One of the following values:
* ``"system"`` = system wide configuration file
* ``"global"`` = user level configuration file
* ``"`repository"`` = configuration file for this repository only
"""
return GitConfigParser(self._get_config_path(config_level), read_only=False, repo=self, merge_includes=False)
def commit(self, rev: Union[str, Commit_ish, None] = None) -> Commit:
"""The :class:`~git.objects.commit.Commit` object for the specified revision.
:param rev:
Revision specifier, see :manpage:`git-rev-parse(1)` for viable options.
:return:
:class:`~git.objects.commit.Commit`
"""
if rev is None:
return self.head.commit
return self.rev_parse(str(rev) + "^0")
def iter_trees(self, *args: Any, **kwargs: Any) -> Iterator["Tree"]:
""":return: Iterator yielding :class:`~git.objects.tree.Tree` objects
:note:
Accepts all arguments known to the :meth:`iter_commits` method.
"""
return (c.tree for c in self.iter_commits(*args, **kwargs))
def tree(self, rev: Union[Tree_ish, str, None] = None) -> "Tree":
"""The :class:`~git.objects.tree.Tree` object for the given tree-ish revision.
Examples::
repo.tree(repo.heads[0])
:param rev:
A revision pointing to a Treeish (being a commit or tree).
:return:
:class:`~git.objects.tree.Tree`
:note:
If you need a non-root level tree, find it by iterating the root tree.
Otherwise it cannot know about its path relative to the repository root and
subsequent operations might have unexpected results.
"""
if rev is None:
return self.head.commit.tree
return self.rev_parse(str(rev) + "^{tree}")
def iter_commits(
self,
rev: Union[str, Commit, "SymbolicReference", None] = None,
paths: Union[PathLike, Sequence[PathLike]] = "",
allow_unsafe_options: bool = False,
**kwargs: Any,
) -> Iterator[Commit]:
"""An iterator of :class:`~git.objects.commit.Commit` objects representing the
history of a given ref/commit.
:param rev:
Revision specifier, see :manpage:`git-rev-parse(1)` for viable options.
If ``None``, the active branch will be used.
:param paths:
An optional path or a list of paths. If set, only commits that include the
path or paths will be returned.
:param kwargs:
Arguments to be passed to :manpage:`git-rev-list(1)`.
Common ones are ``max_count`` and ``skip``.
:param allow_unsafe_options:
Allow unsafe options in the revision argument, like ``--output``.
:note:
To receive only commits between two named revisions, use the
``"revA...revB"`` revision specifier.
:return:
Iterator of :class:`~git.objects.commit.Commit` objects
"""
if rev is None:
rev = self.head.commit
if not allow_unsafe_options:
Git.check_unsafe_options(
options=Git._option_candidates([rev], kwargs), unsafe_options=self.unsafe_git_revision_options
)
return Commit.iter_items(
self,
rev,
paths,
allow_unsafe_options=allow_unsafe_options,
**kwargs,
)
def merge_base(self, *rev: TBD, **kwargs: Any) -> List[Commit]:
R"""Find the closest common ancestor for the given revision
(:class:`~git.objects.commit.Commit`\s, :class:`~git.refs.tag.Tag`\s,
:class:`~git.refs.reference.Reference`\s, etc.).
:param rev:
At least two revs to find the common ancestor for.
:param kwargs:
Additional arguments to be passed to the ``repo.git.merge_base()`` command
which does all the work.
:return:
A list of :class:`~git.objects.commit.Commit` objects. If ``--all`` was
not passed as a keyword argument, the list will have at max one
:class:`~git.objects.commit.Commit`, or is empty if no common merge base
exists.
:raise ValueError:
If fewer than two revisions are provided.
"""
if len(rev) < 2:
raise ValueError("Please specify at least two revs, got only %i" % len(rev))
# END handle input
res: List[Commit] = []
try:
lines: List[str] = self.git.merge_base(*rev, **kwargs).splitlines()
except GitCommandError as err:
if err.status == 128:
raise
# END handle invalid rev
# Status code 1 is returned if there is no merge-base.
# (See: https://github.com/git/git/blob/v2.44.0/builtin/merge-base.c#L19)
return res
# END exception handling
for line in lines:
res.append(self.commit(line))
# END for each merge-base
return res
def is_ancestor(self, ancestor_rev: Commit, rev: Commit) -> bool:
"""Check if a commit is an ancestor of another.
:param ancestor_rev:
Rev which should be an ancestor.
:param rev:
Rev to test against `ancestor_rev`.
:return:
``True`` if `ancestor_rev` is an ancestor to `rev`.
"""
try:
self.git.merge_base(ancestor_rev, rev, is_ancestor=True)
except GitCommandError as err:
if err.status == 1:
return False
raise
return True
def is_valid_object(self, sha: str, object_type: Union[str, None] = None) -> bool:
try:
complete_sha = self.odb.partial_to_complete_sha_hex(sha)
object_info = self.odb.info(complete_sha)
if object_type:
if object_info.type == object_type.encode():
return True
else:
_logger.debug(
"Commit hash points to an object of type '%s'. Requested were objects of type '%s'",
object_info.type.decode(),
object_type,
)
return False
else:
return True
except BadObject:
_logger.debug("Commit hash is invalid.")
return False
def _get_daemon_export(self) -> bool:
git_dir = getattr(self, "git_dir", None)
if git_dir is None:
return False
filename = osp.join(git_dir, self.DAEMON_EXPORT_FILE)
return osp.exists(filename)
def _set_daemon_export(self, value: object) -> None:
git_dir = getattr(self, "git_dir", None)
if git_dir is None:
return
filename = osp.join(git_dir, self.DAEMON_EXPORT_FILE)
fileexists = osp.exists(filename)
if value and not fileexists:
touch(filename)
elif not value and fileexists:
os.unlink(filename)
@property
def daemon_export(self) -> bool:
"""If True, git-daemon may export this repository"""
return self._get_daemon_export()
@daemon_export.setter
def daemon_export(self, value: object) -> None:
self._set_daemon_export(value)
def _get_alternates(self) -> List[str]:
"""The list of alternates for this repo from which objects can be retrieved.
:return:
List of strings being pathnames of alternates
"""
alternates_path = osp.join(self.common_dir, "objects", "info", "alternates")
if osp.exists(alternates_path):
with open(alternates_path, "rb") as f:
alts = f.read().decode(defenc)
return alts.strip().splitlines()
return []
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