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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/
"""Parser for reading and writing configuration files."""
__all__ = ["GitConfigParser", "SectionConstraint"]
from collections import OrderedDict
from collections.abc import MutableMapping
from configparser import (
DuplicateSectionError,
Error as ConfigError,
MissingSectionHeaderError,
NoOptionError,
NoSectionError,
ParsingError,
)
import fnmatch
from functools import wraps
from io import BufferedReader, IOBase
import logging
import os
import os.path as osp
import re
import sys
from git.compat import defenc, force_text
from git.util import LockFile
# typing-------------------------------------------------------
from typing import (
Any,
Callable,
Generic,
IO,
Iterator,
List,
Dict,
NoReturn,
Sequence,
TYPE_CHECKING,
Tuple,
TypeVar,
Union,
cast,
)
from git.types import Lit_config_levels, ConfigLevels_Tup, PathLike, assert_never, _T
if TYPE_CHECKING:
from io import BytesIO
from git.repo.base import Repo
T_ConfigParser = TypeVar("T_ConfigParser", bound="GitConfigParser")
# -------------------------------------------------------------
_logger = logging.getLogger(__name__)
CONFIG_LEVELS: ConfigLevels_Tup = ("system", "user", "global", "repository")
"""The configuration level of a configuration file."""
CONDITIONAL_INCLUDE_REGEXP = re.compile(
r'(?<=includeif )"(gitdir|gitdir/i|onbranch|hasconfig:remote\.\*\.url):(.+)"',
re.IGNORECASE,
)
"""Section pattern to detect conditional includes.
See: https://git-scm.com/docs/git-config#_conditional_includes
"""
UNSAFE_CONFIG_CHARS_RE = re.compile(r"[\r\n\x00]")
"""Characters that cannot be safely written in config names."""
UNSAFE_CONFIG_VALUE_CHARS_RE = re.compile(r"\x00")
"""Characters that cannot be represented in Git config values."""
_MISSING = object()
def _escape_section_subsection(value: str) -> str:
"""Return *value* escaped for Git's double-quoted subsection syntax."""
return value.replace("\\", "\\\\").replace('"', '\\"')
def _escape_config_value(value: str) -> str:
"""Return *value* in a canonical representation accepted by Git."""
escaped = value.replace("\\", "\\\\")
escaped = escaped.replace('"', '\\"')
escaped = escaped.replace("\n", "\\n").replace("\t", "\\t").replace("\b", "\\b")
return '"%s"' % escaped
class _GitConfigFileParser:
"""Parse Git config syntax using the grammar in Git's ``config.c``.
The state machine mirrors Git's ``git_parse_source()``, ``get_base_var()``,
``get_value()``, and ``parse_value()``. It intentionally deals only with syntax;
includes are resolved by :class:`GitConfigParser` after each file is parsed.
"""
def __init__(self, data: str, source: str) -> None:
self._data = data[1:] if data.startswith("\ufeff") else data
self._source = source
self._position = 0
self._line_number = 1
self._current_section: Union[str, None] = None
@staticmethod
def _is_key_char(char: str) -> bool:
return char.isascii() and (char.isalnum() or char == "-")
@staticmethod
def _is_space(char: str) -> bool:
return char in " \t\n\v\f\r"
def _get_char(self) -> Union[str, None]:
if self._position == len(self._data):
return None
char = self._data[self._position]
self._position += 1
if char == "\r" and self._position < len(self._data) and self._data[self._position] == "\n":
self._position += 1
char = "\n"
if char == "\n":
self._line_number += 1
return char
def _error(self, line_number: Union[int, None] = None) -> NoReturn:
number = self._line_number if line_number is None else line_number
lines = self._data.splitlines()
line = lines[number - 1] if 0 < number <= len(lines) else ""
error = ParsingError(self._source)
error.append(number, repr(line))
raise error
def _parse_section(self, line_number: int) -> str:
base: List[str] = []
while True:
char = self._get_char()
if char is None or char == "\n":
self._error(line_number)
if char == "]":
if not base:
self._error(line_number)
return "".join(base)
if self._is_space(char):
break
if not self._is_key_char(char) and char != ".":
self._error(line_number)
base.append(char)
while char is not None and self._is_space(char) and char != "\n":
char = self._get_char()
if char != '"' or not base:
self._error(line_number)
subsection: List[str] = []
while True:
char = self._get_char()
if char is None or char == "\n":
self._error(line_number)
if char == '"':
break
if char == "\\":
char = self._get_char()
if char is None or char == "\n":
self._error(line_number)
subsection.append(char)
if self._get_char() != "]":
self._error(line_number)
return '%s "%s"' % ("".join(base), _escape_section_subsection("".join(subsection)))
def _parse_value(self, line_number: int) -> str:
value: List[str] = []
pending_whitespace: List[str] = []
quoted = False
comment = False
while True:
char = self._get_char()
if char is None or char == "\n":
if quoted:
self._error(line_number)
return "".join(value)
if char == "\x00":
self._error(line_number)
if comment:
continue
if self._is_space(char) and not quoted:
if value:
pending_whitespace.append(char)
continue
if not quoted and char in ";#":
comment = True
continue
if pending_whitespace:
value.extend(pending_whitespace)
pending_whitespace = []
if char == "\\":
char = self._get_char()
if char is None:
self._error(line_number)
if char == "\n":
continue
escapes = {"t": "\t", "b": "\b", "n": "\n", "\\": "\\", '"': '"'}
if char not in escapes:
self._error(line_number)
value.append(escapes[char])
elif char == '"':
quoted = not quoted
else:
value.append(char)
def _parse_entry(self, first_char: str, line_number: int) -> Tuple[str, Union[str, None]]:
option = [first_char]
char = self._get_char()
while char is not None and self._is_key_char(char):
option.append(char)
char = self._get_char()
while char in (" ", "\t"):
char = self._get_char()
# Git distinguishes a valueless key from a key whose value is "true".
if char is None or char == "\n":
return "".join(option), None
if char != "=":
self._error(line_number)
return "".join(option), self._parse_value(line_number)
def parse(self) -> List[Tuple[str, Union[str, None], Union[str, None]]]:
events: List[Tuple[str, Union[str, None], Union[str, None]]] = []
comment = False
while True:
line_number = self._line_number
char = self._get_char()
if char is None:
return events
if char == "\n":
comment = False
continue
if comment:
continue
if self._is_space(char):
continue
if char in "#;":
comment = True
continue
if char == "[":
self._current_section = self._parse_section(line_number)
events.append((self._current_section, None, None))
continue
if not (char.isascii() and char.isalpha()):
self._error(line_number)
if self._current_section is None:
line = self._data.splitlines()[line_number - 1]
raise MissingSectionHeaderError(self._source, line_number, line)
option, value = self._parse_entry(char, line_number)
events.append((self._current_section, option, value))
def _canonical_section_name(name: str) -> str:
"""Validate and canonicalize one section name using Git's own grammar."""
events = _GitConfigFileParser("[%s]" % name, "<section name>").parse()
sections = [section for section, option, _ in events if option is None]
if len(sections) != 1:
raise ValueError("Git config section name does not identify exactly one section")
return sections[0]
def _section_name_key(name: str) -> str:
"""Return Git's case-insensitive lookup key for a canonical section name."""
canonical_name = _canonical_section_name(name)
subsection_start = canonical_name.find(' "')
if subsection_start == -1:
return canonical_name.lower()
return canonical_name[:subsection_start].lower() + canonical_name[subsection_start:]
def needs_values(func: Callable[..., _T]) -> Callable[..., _T]:
"""Return a method for ensuring we read values (on demand) before we try to access
them."""
@wraps(func)
def assure_data_present(self: "GitConfigParser", *args: Any, **kwargs: Any) -> _T:
self.read()
return func(self, *args, **kwargs)
# END wrapper method
return assure_data_present
def set_dirty_and_flush_changes(non_const_func: Callable[..., _T]) -> Callable[..., _T]:
"""Return a method that checks whether given non constant function may be called.
If so, the instance will be set dirty. Additionally, we flush the changes right to
disk.
"""
def flush_changes(self: "GitConfigParser", *args: Any, **kwargs: Any) -> _T:
rval = non_const_func(self, *args, **kwargs)
self._dirty = True
self.write()
return rval
# END wrapper method
flush_changes.__name__ = non_const_func.__name__
return flush_changes
class SectionConstraint(Generic[T_ConfigParser]):
"""Constrain a configuration parser to commands for one section.
It supports all :class:`GitConfigParser` methods that operate on an option.
:note:
If used as a context manager, this releases the wrapped parser.
"""
__slots__ = ("_config", "_section_name")
_valid_attrs_ = (
"get_value",
"set_value",
"get",
"set",
"getint",
"getfloat",
"getboolean",
"has_option",
"remove_section",
"remove_option",
"options",
)
def __init__(self, config: T_ConfigParser, section: str) -> None:
self._config = config
self._section_name = section
def __del__(self) -> None:
# Yes, for some reason, we have to call it explicitly for it to work in PY3 !
# Apparently __del__ doesn't get call anymore if refcount becomes 0
# Ridiculous ... .
self._config.release()
def __getattr__(self, attr: str) -> Any:
if attr in self._valid_attrs_:
return lambda *args, **kwargs: self._call_config(attr, *args, **kwargs)
return super().__getattribute__(attr)
def _call_config(self, method: str, *args: Any, **kwargs: Any) -> Any:
"""Call the configuration at the given method which must take a section name as
first argument."""
return getattr(self._config, method)(self._section_name, *args, **kwargs)
@property
def config(self) -> T_ConfigParser:
"""Return the :class:`GitConfigParser` instance being constrained."""
return self._config
def release(self) -> None:
"""Equivalent to :meth:`GitConfigParser.release`, which is called on our
underlying parser instance."""
return self._config.release()
def __enter__(self) -> "SectionConstraint[T_ConfigParser]":
self._config.__enter__()
return self
def __exit__(self, exception_type: str, exception_value: str, traceback: str) -> None:
self._config.__exit__(exception_type, exception_value, traceback)
class _GitConfigSectionData:
"""Ordered, multi-valued storage for one Git configuration section."""
def __init__(self) -> None:
self._values: "OrderedDict[str, List[Union[str, None]]]" = OrderedDict()
def __contains__(self, option: str) -> bool:
return option in self._values
def __len__(self) -> int:
return len(self._values)
def add(self, option: str, value: Union[str, None]) -> None:
self._values.setdefault(option, []).append(value)
def set(self, option: str, value: Union[str, None]) -> None:
self._values[option] = [value]
def setall(self, option: str, values: List[Union[str, None]]) -> None:
self._values[option] = list(values)
def getlast(self, option: str) -> Union[str, None]:
return self._values[option][-1]
def getall(self, option: str) -> List[Union[str, None]]:
return list(self._values[option])
def remove(self, option: str) -> bool:
if option not in self._values:
return False
del self._values[option]
return True
def options(self) -> List[str]:
return list(self._values)
def items_all(self) -> List[Tuple[str, List[Union[str, None]]]]:
return [(option, list(values)) for option, values in self._values.items()]
class _GitConfigSection(MutableMapping):
"""Mapping-style view of one section in a :class:`GitConfigParser`."""
def __init__(self, parser: "GitConfigParser", name: str) -> None:
self._parser = parser
self._name = name
def __repr__(self) -> str:
return "<Git config section: %s>" % self._name
def __getitem__(self, option: str) -> str:
return self._parser.get(self._name, option)
def __setitem__(self, option: str, value: Any) -> None:
self._parser.set(self._name, option, value)
def __delitem__(self, option: str) -> None:
if not self._parser.remove_option(self._name, option):
raise KeyError(option)
def __iter__(self) -> Iterator[str]:
return iter(self._parser.options(self._name))
def __len__(self) -> int:
return len(self._parser.options(self._name))
def __contains__(self, option: object) -> bool:
return isinstance(option, str) and self._parser.has_option(self._name, option)
def get(self, option: str, fallback: Any = None, **kwargs: Any) -> Any: # type: ignore[override]
return self._parser.get(self._name, option, fallback=fallback, **kwargs)
def getint(self, option: str, fallback: Any = None, **kwargs: Any) -> Any:
return self._parser.getint(self._name, option, fallback=fallback, **kwargs)
def getfloat(self, option: str, fallback: Any = None, **kwargs: Any) -> Any:
return self._parser.getfloat(self._name, option, fallback=fallback, **kwargs)
def getboolean(self, option: str, fallback: Any = None, **kwargs: Any) -> Any:
return self._parser.getboolean(self._name, option, fallback=fallback, **kwargs)
@property
def parser(self) -> "GitConfigParser":
return self._parser
@property
def name(self) -> str:
return self._name
def get_config_path(config_level: Lit_config_levels) -> str:
# 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":
raise ValueError("No repo to get repository configuration from. Use Repo._get_config_path")
else:
# Should not reach here. Will raise ValueError if does. Static typing will warn
# about missing elifs.
assert_never( # type: ignore[unreachable]
config_level,
ValueError(f"Invalid configuration level: {config_level!r}"),
)
class GitConfigParser:
"""Implements specifics required to read git style configuration files.
This variation behaves much like the :manpage:`git-config(1)` command, such that the
configuration will be read on demand based on the filepath given during
initialization.
The changes will automatically be written once the instance goes out of scope, but
can be triggered manually as well.
The configuration file will be locked if you intend to change values preventing
other instances to write concurrently.
:note:
Section and option names are case-insensitive, while subsection names are
case-sensitive, matching Git.
:note:
If used as a context manager, this will release the locked file.
"""
# { Configuration
t_lock = LockFile
"""The lock type determines the type of lock to use in new configuration readers.
They must be compatible to the :class:`~git.util.LockFile` interface.
A suitable alternative would be the :class:`~git.util.BlockingLockFile`.
"""
def __init__(
self,
file_or_files: Union[None, PathLike, "BytesIO", Sequence[Union[PathLike, "BytesIO"]]] = None,
read_only: bool = True,
merge_includes: bool = True,
config_level: Union[Lit_config_levels, None] = None,
repo: Union["Repo", None] = None,
) -> None:
"""Initialize a configuration reader to read the given `file_or_files` and to
possibly allow changes to it by setting `read_only` False.
:param file_or_files:
A file path or file object, or a sequence of possibly more than one of them.
:param read_only:
If ``True``, the parser may only read the data, but not change it.
If ``False``, only a single file path or file object may be given. We will
write back the changes when they happen, or when the parser is
released. This will not happen if other configuration files have been
included.
:param merge_includes:
If ``True``, we will read files mentioned in ``[include]`` sections and
merge their contents into ours. This makes it impossible to write back an
individual configuration file. Thus, if you want to modify a single
configuration file, turn this off to leave the original dataset unaltered
when reading it.
:param repo:
Reference to repository to use if ``[includeIf]`` sections are found in
configuration files.
"""
self._sections: "OrderedDict[str, _GitConfigSectionData]" = OrderedDict()
# Lookups use case-normalized keys, while canonical rewrites retain the
# first spelling seen in the file or supplied through the API.
self._section_name_map: Dict[str, str] = {}
self._option_name_map: Dict[Tuple[str, str], str] = {}
if file_or_files is not None:
self._file_or_files: Union[PathLike, "BytesIO", Sequence[Union[PathLike, "BytesIO"]]] = file_or_files
else:
if config_level is None:
if read_only:
self._file_or_files = [
get_config_path(cast(Lit_config_levels, f)) for f in CONFIG_LEVELS if f != "repository"
]
else:
raise ValueError("No configuration level or configuration files specified")
else:
self._file_or_files = [get_config_path(config_level)]
self._read_only = read_only
self._dirty = False
self._is_initialized = False
self._merge_includes = merge_includes
self._repo = repo
self._lock: Union["LockFile", None] = None
self._acquire_lock()
def _acquire_lock(self) -> None:
if not self._read_only:
if not self._lock:
if isinstance(self._file_or_files, (str, os.PathLike)):
file_or_files = self._file_or_files
elif isinstance(self._file_or_files, (tuple, list, Sequence)):
raise ValueError(
"Writable config parsers can operate on a single file only; multiple files were passed"
)
else:
file_or_files = self._file_or_files.name
# END get filename from handle/stream
# Initialize lock base - we want to write.
self._lock = self.t_lock(file_or_files)
# END lock check
self._lock._obtain_lock()
# END read-only check
def __del__(self) -> None:
"""Write pending changes if required and release locks."""
# NOTE: Only consistent in Python 2.
self.release()
def __enter__(self) -> "GitConfigParser":
self._acquire_lock()
return self
def __exit__(self, *args: Any) -> None:
self.release()
def release(self) -> None:
"""Flush changes and release the configuration write lock. This instance must
not be used anymore afterwards.
In Python 3, it's required to explicitly release locks and flush changes, as
``__del__`` is not called deterministically anymore.
"""
# Checking for the lock here makes sure we do not raise during write()
# in case an invalid parser was created who could not get a lock.
if self.read_only or (self._lock and not self._lock._has_lock()):
return
try:
self.write()
except IOError:
_logger.error("Exception during destruction of GitConfigParser", exc_info=True)
except ReferenceError:
# This happens in Python 3... and usually means that some state cannot be
# written as the sections dict cannot be iterated. This usually happens when
# the interpreter is shutting down. Can it be fixed?
pass
finally:
if self._lock is not None:
self._lock._release_lock()
def optionxform(self, optionstr: str) -> str:
"""Normalize option names as Git does; their spelling is case-insensitive."""
return optionstr.lower()
@needs_values
def sections(self) -> List[str]:
"""Return section names with the spelling used in the configuration."""
return [self._section_name_map.get(section, section) for section in self._sections]
def __iter__(self) -> Iterator[str]:
"""Iterate over section names with their original spelling."""
return iter(self.sections())
def __len__(self) -> int:
self.read()
return len(self._sections)
def __contains__(self, section: object) -> bool:
return isinstance(section, str) and self.has_section(section)
@needs_values
def __getitem__(self, section: str) -> _GitConfigSection:
"""Return a section proxy using Git's section case rules."""
section_key = self._normalize_section_name(section)
if section_key not in self._sections:
raise KeyError(section)
return _GitConfigSection(self, self._section_name_map.get(section_key, section_key))
def keys(self) -> List[str]:
return self.sections()
def values(self) -> List[_GitConfigSection]:
return [self[section] for section in self.sections()]
@staticmethod
def _normalize_section_name(section: str) -> str:
return _section_name_key(section)
@needs_values
def get(
self,
section: str,
option: str,
raw: bool = False,
vars: Union[Dict[str, Any], None] = None,
fallback: Any = _MISSING,
) -> Any:
"""Get an option using Git's section and option case rules."""
del raw # Git config values are never interpolated.
section_key = self._normalize_section_name(section)
if section_key not in self._sections:
if fallback is not _MISSING:
return fallback
raise NoSectionError(section)
option_key = self.optionxform(option)
if vars is not None:
for var_name, var_value in vars.items():
if self.optionxform(var_name) == option_key:
return var_value
section_data = self._sections[section_key]
if option_key not in section_data:
if fallback is not _MISSING:
return fallback
raise NoOptionError(option, self._section_name_map.get(section_key, section))
value = section_data.getlast(option_key)
return "true" if value is None else value
@needs_values
def has_section(self, section: str) -> bool:
"""Return whether *section* exists, ignoring case in its base name."""
section = self._normalize_section_name(section)
return section in self._sections
@needs_values
def has_option(self, section: str, option: str) -> bool:
"""Return whether *option* exists using Git's case rules."""
section = self._normalize_section_name(section)
return section in self._sections and self.optionxform(option) in self._sections[section]
@needs_values
def options(self, section: str) -> List[str]:
"""Return option names with their original spelling."""
section = self._normalize_section_name(section)
if section not in self._sections:
raise NoSectionError(section)
return [self._option_name_map.get((section, option), option) for option in self._sections[section].options()]
@needs_values
@set_dirty_and_flush_changes
def remove_option(self, section: str, option: str) -> bool:
"""Remove an option using Git's section and option case rules."""
section = self._normalize_section_name(section)
option_key = self.optionxform(option)
if section not in self._sections:
raise NoSectionError(section)
removed = self._sections[section].remove(option_key)
if removed:
self._option_name_map.pop((section, option_key), None)
return removed
@needs_values
@set_dirty_and_flush_changes
def remove_section(self, section: str) -> bool:
"""Remove a section while ignoring case in its base name."""
section = self._normalize_section_name(section)
removed = section in self._sections
if removed:
del self._sections[section]
self._section_name_map.pop(section, None)
for name_key in [name_key for name_key in self._option_name_map if name_key[0] == section]:
del self._option_name_map[name_key]
return removed
def _read(self, fp: Union[BufferedReader, IO[bytes]], fpname: str) -> None:
"""Parse one file according to the grammar implemented by Git itself."""
parser = _GitConfigFileParser(fp.read().decode(defenc), fpname)
for section, option, value in parser.parse():
section_key = _section_name_key(section)
if section_key not in self._sections:
self._sections[section_key] = _GitConfigSectionData()
self._section_name_map[section_key] = section
if option is not None:
option_key = self.optionxform(option)
self._sections[section_key].add(option_key, value)
self._option_name_map.setdefault((section_key, option_key), option)
def _has_includes(self) -> Union[bool, int]:
return self._merge_includes and len(self._included_paths())
def _included_paths(self) -> List[Tuple[str, str]]:
"""List all paths that must be included to configuration.
:return:
The list of paths, where each path is a tuple of (option, value).
"""
def _all_items(section: str) -> List[Tuple[str, str]]:
"""Return all (key, value) pairs for a section, including duplicate keys."""
section = _section_name_key(section)
return [
(key, "true" if value is None else value)
for key, values in self._sections[section].items_all()
for value in values
]
paths = []
for section in self.sections():
if _section_name_key(section) == "include":
paths += _all_items(section)
match = CONDITIONAL_INCLUDE_REGEXP.search(section)
if match is None or self._repo is None:
continue
keyword = match.group(1)
value = match.group(2).strip()
if keyword in ["gitdir", "gitdir/i"]:
value = osp.expanduser(value)
git_dir = os.fspath(self._repo.git_dir) if self._repo.git_dir else None
if sys.platform == "win32":
git_dir = git_dir.replace("\\", "/") if git_dir else None
drive, _tail = osp.splitdrive(value)
if not drive and not any(value.startswith(s) for s in ["./", "/"]):
value = "**/" + value
if value.endswith("/"):
value += "**"
# Ensure that glob is always case insensitive if required.
if keyword.endswith("/i"):
value = re.sub(
r"[a-zA-Z]",
lambda m: f"[{m.group().lower()!r}{m.group().upper()!r}]",
value,
)
if git_dir and fnmatch.fnmatchcase(git_dir, value):
paths += _all_items(section)
elif keyword == "onbranch":
branch = self._repo.active_branch
if branch is None:
# Ignore section if active branch cannot be retrieved.
continue
if fnmatch.fnmatchcase(branch.name, value):
paths += _all_items(section)
elif keyword == "hasconfig:remote.*.url":
for remote in self._repo.remotes:
if fnmatch.fnmatchcase(remote.url, value):
paths += _all_items(section)
break
return paths
def read(self) -> None:
"""Read the data stored in the files we have been initialized with.
This will ignore files that cannot be read, possibly leaving an empty
configuration.
:raise IOError:
If a file cannot be handled.
"""
if self._is_initialized:
return
self._is_initialized = True
files_to_read: List[Union[PathLike, IO]] = [""]
if isinstance(self._file_or_files, (str, os.PathLike)):
# For str or Path, as str is a type of Sequence.
files_to_read = [self._file_or_files]
elif not isinstance(self._file_or_files, (tuple, list, Sequence)):
# Could merge with above isinstance once runtime type known.
files_to_read = [self._file_or_files]
else: # For lists or tuples.
files_to_read = list(self._file_or_files)
# END ensure we have a copy of the paths to handle
files_to_read = [osp.abspath(path) if isinstance(path, (str, os.PathLike)) else path for path in files_to_read]
seen = set(files_to_read)
num_read_include_files = 0
while files_to_read:
file_path = files_to_read.pop(0)
file_ok = False
if hasattr(file_path, "seek"):
# Must be a file-object.
# TODO: Replace cast with assert to narrow type, once sure.
file_path = cast(IO[bytes], file_path)
self._read(file_path, file_path.name)
else:
try:
with open(file_path, "rb") as fp:
file_ok = True
self._read(fp, fp.name)
except IOError:
continue
# Read includes and append those that we didn't handle yet. We expect all
# paths to be normalized and absolute (and will ensure that is the case).
if self._has_includes():
for _, include_path in self._included_paths():
if include_path.startswith("~"):
include_path = osp.expanduser(include_path)
if not osp.isabs(include_path):
if not file_ok:
continue
# END ignore relative paths if we don't know the configuration file path
file_path = cast(PathLike, file_path)
assert osp.isabs(file_path), "Need absolute paths to be sure our cycle checks will work"
include_path = osp.join(osp.dirname(file_path), include_path)
# END make include path absolute
include_path = osp.normpath(include_path)
if include_path in seen or not os.access(include_path, os.R_OK):
continue
seen.add(include_path)
# Insert included file to the top to be considered first.
files_to_read.insert(0, include_path)
num_read_include_files += 1
# END each include path in configuration file
# END handle includes
# END for each file object to read
# If there was no file included, we can safely write back (potentially) the
# configuration file without altering its meaning.
if num_read_include_files == 0:
self._merge_includes = False
def _write(self, fp: IO) -> None:
"""Write a canonical Git-config representation of the configuration state."""
def write_section(name: str, section_data: _GitConfigSectionData) -> None:
section_name = self._section_name_map.get(name, name)
fp.write(("[%s]\n" % _canonical_section_name(section_name)).encode(defenc))
for key, values in section_data.items_all():
for raw_value in values:
option_name = self._option_name_map.get((name, key), key)
if raw_value is None:
fp.write(("\t%s\n" % option_name).encode(defenc))
continue
value = _escape_config_value(self._value_to_string(raw_value))
fp.write(("\t%s = %s\n" % (option_name, value)).encode(defenc))
# END section writing
for name, section_data in self._sections.items():
write_section(name, section_data)
@needs_values
def items(self, section_name: str) -> List[Tuple[str, str]]:
""":return: list((option, value), ...) pairs of all items in the given section"""
section_name = self._normalize_section_name(section_name)
if section_name not in self._sections:
raise NoSectionError(section_name)
return [
(self._option_name_map.get((section_name, key), key), "true" if values[-1] is None else values[-1])
for key, values in self._sections[section_name].items_all()
]
@needs_values
def items_all(self, section_name: str) -> List[Tuple[str, List[str]]]:
""":return: list((option, [values...]), ...) pairs of all items in the given section"""
section_name = self._normalize_section_name(section_name)
if section_name not in self._sections:
raise NoSectionError(section_name)
return [
(
self._option_name_map.get((section_name, key), key),
["true" if value is None else value for value in values],
)
for key, values in self._sections[section_name].items_all()
]
@needs_values
def write(self) -> None:
"""Write changes to our file, if there are changes at all.
:raise IOError:
If this is a read-only writer instance or if we could not obtain a file
lock.
"""
self._assure_writable("write")
if not self._dirty:
return
if isinstance(self._file_or_files, (list, tuple)):
raise AssertionError(
"Cannot write back if there is not exactly a single file to write to, have %i files"
% len(self._file_or_files)
)
# END assert multiple files
if self._has_includes():
_logger.debug(
"Skipping write-back of configuration file as include files were merged in."
+ "Set merge_includes=False to prevent this."
)
return
# END stop if we have include files
fp = self._file_or_files
# We have a physical file on disk, so get a lock.
is_file_lock = isinstance(fp, (str, os.PathLike, IOBase)) # TODO: Use PathLike (having dropped 3.5).
if is_file_lock and self._lock is not None: # Else raise error?
self._lock._obtain_lock()
if not hasattr(fp, "seek"):
fp = cast(PathLike, fp)
with open(fp, "wb") as fp_open:
self._write(fp_open)
else:
fp = cast("BytesIO", fp)
fp.seek(0)
# Make sure we do not overwrite into an existing file.
if hasattr(fp, "truncate"):
You can’t perform that action at this time.