pw_ide/py/pw_ide/settings.py - pigweed/pigweed - Git at Google

 # Copyright 2022 The Pigweed Authors
 #
 # Licensed under the Apache License, Version 2.0 (the "License"); you may not
 # use this file except in compliance with the License. You may obtain a copy of
 # the License at
 #
 #     https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 # License for the specific language governing permissions and limitations under
 # the License.
 """pw_ide settings."""

 import enum
 from inspect import cleandoc
 import os
 from pathlib import Path
 from typing import Any, cast, Literal
 import yaml

 from pw_cli.env import pigweed_environment
 from pw_config_loader.yaml_config_loader_mixin import YamlConfigLoaderMixin

 env = pigweed_environment()
 env_vars = vars(env)

 PW_IDE_DIR_NAME = '.pw_ide'
 PW_IDE_DEFAULT_DIR = Path(env.PW_PROJECT_ROOT) / PW_IDE_DIR_NAME

 _DEFAULT_BUILD_DIR_NAME = 'out'
 _DEFAULT_BUILD_DIR = env.PW_PROJECT_ROOT / _DEFAULT_BUILD_DIR_NAME

 _DEFAULT_TARGET_INFERENCE = '?'

 SupportedEditorName = Literal['vscode']


 class SupportedEditor(enum.Enum):
     VSCODE = 'vscode'


 _DEFAULT_SUPPORTED_EDITORS: dict[SupportedEditorName, bool] = {
     'vscode': True,
 }

 _DEFAULT_CONFIG: dict[str, Any] = {
     'cascade_targets': False,
     'clangd_alternate_path': None,
     'clangd_additional_query_drivers': [],
     'compdb_gen_cmd': None,
     'compdb_search_paths': [_DEFAULT_BUILD_DIR_NAME],
     'default_target': None,
     'editors': _DEFAULT_SUPPORTED_EDITORS,
     'sync': ['pw --no-banner ide cpp --process'],
     'targets_exclude': [],
     'targets_include': [],
     'target_inference': _DEFAULT_TARGET_INFERENCE,
     'working_dir': PW_IDE_DEFAULT_DIR,
 }

 _DEFAULT_PROJECT_FILE = Path('$PW_PROJECT_ROOT/.pw_ide.yaml')
 _DEFAULT_PROJECT_USER_FILE = Path('$PW_PROJECT_ROOT/.pw_ide.user.yaml')
 _DEFAULT_USER_FILE = Path('$HOME/.pw_ide.yaml')


 def _expand_any_vars(input_path: Path) -> Path:
     """Expand any environment variables in a path.

     Python's ``os.path.expandvars`` will only work on an isolated environment
     variable name. In shell, you can expand variables within a larger command
     or path. We replicate that functionality here.
     """
     outputs = []

     for token in input_path.parts:
         expanded_var = os.path.expandvars(token)

         if expanded_var == token:
             outputs.append(token)
         else:
             outputs.append(expanded_var)

     # pylint: disable=no-value-for-parameter
     return Path(os.path.join(*outputs))
     # pylint: enable=no-value-for-parameter


 def _expand_any_vars_str(input_path: str) -> str:
     """`_expand_any_vars`, except takes and returns a string instead of path."""
     return str(_expand_any_vars(Path(input_path)))


 def _parse_dir_path(input_path_str: str) -> Path:
     if (path := Path(input_path_str)).is_absolute():
         return path

     return Path.cwd() / path


 def _parse_compdb_search_path(
     input_data: str | tuple[str, str], default_inference: str
 ) -> tuple[Path, str]:
     if isinstance(input_data, (tuple, list)):
         return _parse_dir_path(input_data[0]), input_data[1]

     return _parse_dir_path(input_data), default_inference


 class PigweedIdeSettings(YamlConfigLoaderMixin):
     """Pigweed IDE features settings storage class."""

     def __init__(
         self,
         project_file: Path | bool = _DEFAULT_PROJECT_FILE,
         project_user_file: Path | bool = _DEFAULT_PROJECT_USER_FILE,
         user_file: Path | bool = _DEFAULT_USER_FILE,
         default_config: dict[str, Any] | None = None,
     ) -> None:
         self.config_init(
             config_section_title='pw_ide',
             project_file=project_file,
             project_user_file=project_user_file,
             user_file=user_file,
             default_config=_DEFAULT_CONFIG
             if default_config is None
             else default_config,
             environment_var='PW_IDE_CONFIG_FILE',
         )

     def __repr__(self) -> str:
         return str(
             {
                 key: getattr(self, key)
                 for key, value in self.__class__.__dict__.items()
                 if isinstance(value, property)
             }
         )

     @property
     def working_dir(self) -> Path:
         """Path to the ``pw_ide`` working directory.

         The working directory holds C++ compilation databases and caches, and
         other supporting files. This should not be a directory that's regularly
         deleted or manipulated by other processes (e.g. the GN ``out``
         directory) nor should it be committed to source control.
         """
         return Path(
             _expand_any_vars_str(
                 self._config.get('working_dir', PW_IDE_DEFAULT_DIR)
             )
         )

     @property
     def compdb_gen_cmd(self) -> str | None:
         """The command that should be run to generate a compilation database.

         Defining this allows ``pw_ide`` to automatically generate a compilation
         database if it suspects one has not been generated yet before a sync.
         """
         return self._config.get('compdb_gen_cmd')

     @property
     def compdb_search_paths(self) -> list[tuple[Path, str]]:
         """Paths to directories to search for compilation databases.

         If you're using a build system to generate compilation databases, this
         may simply be your build output directory. However, you can add
         additional directories to accommodate compilation databases from other
         sources.

         Entries can be just directories, in which case the default target
         inference pattern will be used. Or entries can be tuples of a directory
         and a target inference pattern. See the documentation for
         ``target_inference`` for more information.

         Finally, the directories can be concrete paths, or they can be globs
         that expand to multiple paths.
         """
         return [
             _parse_compdb_search_path(search_path, self.target_inference)
             for search_path in self._config.get(
                 'compdb_search_paths', [_DEFAULT_BUILD_DIR]
             )
         ]

     @property
     def targets_exclude(self) -> list[str]:
         """The list of targets that should not be enabled for code analysis.

         In this case, "target" is analogous to a GN target, i.e., a particular
         build configuration. By default, all available targets are enabled. By
         adding targets to this list, you can disable/hide targets that should
         not be available for code analysis.

         Target names need to match the name of the directory that holds the
         build system artifacts for the target. For example, GN outputs build
         artifacts for the ``pw_strict_host_clang_debug`` target in a directory
         with that name in its output directory. So that becomes the canonical
         name for the target.
         """
         return self._config.get('targets_exclude', list())

     @property
     def targets_include(self) -> list[str]:
         """The list of targets that should be enabled for code analysis.

         In this case, "target" is analogous to a GN target, i.e., a particular
         build configuration. By default, all available targets are enabled. By
         adding targets to this list, you can constrain the targets that are
         enabled for code analysis to a subset of those that are available, which
         may be useful if your project has many similar targets that are
         redundant from a code analysis perspective.

         Target names need to match the name of the directory that holds the
         build system artifacts for the target. For example, GN outputs build
         artifacts for the ``pw_strict_host_clang_debug`` target in a directory
         with that name in its output directory. So that becomes the canonical
         name for the target.
         """
         return self._config.get('targets_include', list())

     @property
     def target_inference(self) -> str:
         """A glob-like string for extracting a target name from an output path.

         Build systems and projects have varying ways of organizing their build
         directory structure. For a given compilation unit, we need to know how
         to extract the build's target name from the build artifact path. A
         simple example:

         .. code-block:: none

            clang++ hello.cc -o host/obj/hello.cc.o

         The top-level directory ``host`` is the target name we want. The same
         compilation unit might be used with another build target:

         .. code-block:: none

            gcc-arm-none-eabi hello.cc -o arm_dev_board/obj/hello.cc.o

         In this case, this compile command is associated with the
         ``arm_dev_board`` target.

         When importing and processing a compilation database, we assume by
         default that for each compile command, the corresponding target name is
         the name of the top level directory within the build directory root
         that contains the build artifact. This is the default behavior for most
         build systems. However, if your project is structured differently, you
         can provide a glob-like string that indicates how to extract the target
         name from build artifact path.

         A ``*`` indicates any directory, and ``?`` indicates the directory that
         has the name of the target. The path is resolved from the build
         directory root, and anything deeper than the target directory is
         ignored. For example, a glob indicating that the directory two levels
         down from the build directory root has the target name would be
         expressed with ``*/*/?``.

         Note that the build artifact path is relative to the compilation
         database search path that found the file. For example, for a compilation
         database search path of ``{project dir}/out``, for the purposes of
         target inference, the build artifact path is relative to the ``{project
         dir}/out`` directory. Target inference patterns can be defined for each
         compilation database search path. See the documentation for
         ``compdb_search_paths`` for more information.
         """
         return self._config.get('target_inference', _DEFAULT_TARGET_INFERENCE)

     @property
     def default_target(self) -> str | None:
         """The default target to use when calling ``--set-default``.

         This target will be selected when ``pw ide cpp --set-default`` is
         called. You can define an explicit default target here. If that command
         is invoked without a default target definition, ``pw_ide`` will try to
         infer the best choice of default target. Currently, it selects the
         target with the broadest compilation unit coverage.
         """
         return self._config.get('default_target', None)

     @property
     def sync(self) -> list[str]:
         """A sequence of commands to automate IDE features setup.

         ``pw ide sync`` should do everything necessary to get the project from
         a fresh checkout to a working default IDE experience. This defines the
         list of commands that makes that happen, which will be executed
         sequentially in subprocesses. These commands should be idempotent, so
         that the user can run them at any time to update their IDE features
         configuration without the risk of putting those features in a bad or
         unexpected state.
         """
         return self._config.get('sync', list())

     @property
     def clangd_alternate_path(self) -> Path | None:
         """An alternate path to ``clangd`` to use instead of Pigweed's.

         Pigweed provides the ``clang`` toolchain, including ``clangd``, via
         CIPD, and by default, ``pw_ide`` will look for that toolchain in the
         CIPD directory at ``$PW_PIGWEED_CIPD_INSTALL_DIR`` *or* in an alternate
         CIPD directory specified by ``$PW_{project name}_CIPD_INSTALL_DIR`` if
         it exists.

         If your project needs to use a ``clangd`` located somewhere else not
         covered by the cases described above, you can define the path to that
         ``clangd`` here.
         """
         return self._config.get('clangd_alternate_path', None)

     @property
     def clangd_additional_query_drivers(self) -> list[str]:
         """Additional query driver paths that clangd should use.

         By default, ``pw_ide`` supplies driver paths for the toolchains included
         in Pigweed. If you are using toolchains that are not supplied by
         Pigweed, you should include path globs to your toolchains here. These
         paths will be given higher priority than the Pigweed toolchain paths.
         """
         return self._config.get('clangd_additional_query_drivers', list())

     def clangd_query_drivers(self, host_clang_cc_path: Path) -> list[str]:
         drivers = [
             *[
                 _expand_any_vars_str(p)
                 for p in self.clangd_additional_query_drivers
             ],
         ]

         drivers.append(str(host_clang_cc_path.parent / '*'))

         if (env_var := env_vars.get('PW_ARM_CIPD_INSTALL_DIR')) is not None:
             drivers.append(str(Path(env_var) / 'bin' / '*'))

         return drivers

     def clangd_query_driver_str(self, host_clang_cc_path: Path) -> str:
         return ','.join(self.clangd_query_drivers(host_clang_cc_path))

     @property
     def editors(self) -> dict[str, bool]:
         """Enable or disable automated support for editors.

         Automatic support for some editors is provided by ``pw_ide``, which is
         accomplished through generating configuration files in your project
         directory. All supported editors are enabled by default, but you can
         disable editors by adding an ``'<editor>': false`` entry.
         """
         return self._config.get('editors', _DEFAULT_SUPPORTED_EDITORS)

     def editor_enabled(self, editor: SupportedEditorName) -> bool:
         """True if the provided editor is enabled in settings.

         This module will integrate the project with all supported editors by
         default. If the project or user want to disable particular editors,
         they can do so in the appropriate settings file.
         """
         return self._config.get('editors', {}).get(editor, False)

     @property
     def cascade_targets(self) -> bool:
         """Mix compile commands for multiple targets to maximize code coverage.

         By default (with this set to ``False``), the compilation database for
         each target is consistent in the sense that it only contains compile
         commands for one build target, so the code intelligence that database
         provides is related to a single, known compilation artifact. However,
         this means that code intelligence may not be provided for every source
         file in a project, because some source files may be relevant to targets
         other than the one you have currently set. Those source files won't
         have compile commands for the current target, and no code intelligence
         will appear in your editor.

         If this is set to ``True``, compilation databases will still be
         separated by target, but compile commands for *all other targets* will
         be appended to the list of compile commands for *that* target. This
         will maximize code coverage, ensuring that you have code intelligence
         for every file that is built for any target, at the cost of
         consistency—the code intelligence for some files may show information
         that is incorrect or irrelevant to the currently selected build target.

         The currently set target's compile commands will take priority at the
         top of the combined file, then all other targets' commands will come
         after in order of the number of commands they have (i.e. in the order of
         their code coverage). This relies on the fact that ``clangd`` parses the
         compilation database from the top down, using the first compile command
         it encounters for each compilation unit.
         """
         return self._config.get('cascade_targets', False)


 def _docstring_set_default(
     obj: Any, default: Any, literal: bool = False
 ) -> None:
     """Add a default value annotation to a docstring.

     Formatting isn't allowed in docstrings, so by default we can't inject
     variables that we would like to appear in the documentation, like the
     default value of a property. But we can use this function to add it
     separately.
     """
     if obj.__doc__ is not None:
         default = str(default)

         if literal:
             lines = default.splitlines()

             if len(lines) == 0:
                 return
             if len(lines) == 1:
                 default = f'Default: ``{lines[0]}``'
             else:
                 default = 'Default:\n\n.. code-block::\n\n  ' + '\n  '.join(
                     lines
                 )

         doc = cast(str, obj.__doc__)
         obj.__doc__ = f'{cleandoc(doc)}\n\n{default}'


 _docstring_set_default(
     PigweedIdeSettings.working_dir, PW_IDE_DIR_NAME, literal=True
 )
 _docstring_set_default(
     PigweedIdeSettings.compdb_gen_cmd,
     _DEFAULT_CONFIG['compdb_gen_cmd'],
     literal=True,
 )
 _docstring_set_default(
     PigweedIdeSettings.compdb_search_paths,
     [_DEFAULT_BUILD_DIR_NAME],
     literal=True,
 )
 _docstring_set_default(
     PigweedIdeSettings.targets_exclude,
     _DEFAULT_CONFIG['targets_exclude'],
     literal=True,
 )
 _docstring_set_default(
     PigweedIdeSettings.targets_include,
     _DEFAULT_CONFIG['targets_include'],
     literal=True,
 )
 _docstring_set_default(
     PigweedIdeSettings.default_target,
     _DEFAULT_CONFIG['default_target'],
     literal=True,
 )
 _docstring_set_default(
     PigweedIdeSettings.cascade_targets,
     _DEFAULT_CONFIG['cascade_targets'],
     literal=True,
 )
 _docstring_set_default(
     PigweedIdeSettings.target_inference,
     _DEFAULT_CONFIG['target_inference'],
     literal=True,
 )
 _docstring_set_default(
     PigweedIdeSettings.sync, _DEFAULT_CONFIG['sync'], literal=True
 )
 _docstring_set_default(
     PigweedIdeSettings.clangd_alternate_path,
     _DEFAULT_CONFIG['clangd_alternate_path'],
     literal=True,
 )
 _docstring_set_default(
     PigweedIdeSettings.clangd_additional_query_drivers,
     _DEFAULT_CONFIG['clangd_additional_query_drivers'],
     literal=True,
 )
 _docstring_set_default(
     PigweedIdeSettings.editors,
     yaml.dump(_DEFAULT_SUPPORTED_EDITORS),
     literal=True,
 )
	# Copyright 2022 The Pigweed Authors
	#
	# Licensed under the Apache License, Version 2.0 (the "License"); you may not
	# use this file except in compliance with the License. You may obtain a copy of
	# the License at
	#
	# https://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
	# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
	# License for the specific language governing permissions and limitations under
	# the License.
	"""pw_ide settings."""

	import enum
	from inspect import cleandoc
	import os
	from pathlib import Path
	from typing import Any, cast, Literal
	import yaml

	from pw_cli.env import pigweed_environment
	from pw_config_loader.yaml_config_loader_mixin import YamlConfigLoaderMixin

	env = pigweed_environment()
	env_vars = vars(env)

	PW_IDE_DIR_NAME = '.pw_ide'
	PW_IDE_DEFAULT_DIR = Path(env.PW_PROJECT_ROOT) / PW_IDE_DIR_NAME

	_DEFAULT_BUILD_DIR_NAME = 'out'
	_DEFAULT_BUILD_DIR = env.PW_PROJECT_ROOT / _DEFAULT_BUILD_DIR_NAME

	_DEFAULT_TARGET_INFERENCE = '?'

	SupportedEditorName = Literal['vscode']


	class SupportedEditor(enum.Enum):
	VSCODE = 'vscode'


	_DEFAULT_SUPPORTED_EDITORS: dict[SupportedEditorName, bool] = {
	'vscode': True,
	}

	_DEFAULT_CONFIG: dict[str, Any] = {
	'cascade_targets': False,
	'clangd_alternate_path': None,
	'clangd_additional_query_drivers': [],
	'compdb_gen_cmd': None,
	'compdb_search_paths': [_DEFAULT_BUILD_DIR_NAME],
	'default_target': None,
	'editors': _DEFAULT_SUPPORTED_EDITORS,
	'sync': ['pw --no-banner ide cpp --process'],
	'targets_exclude': [],
	'targets_include': [],
	'target_inference': _DEFAULT_TARGET_INFERENCE,
	'working_dir': PW_IDE_DEFAULT_DIR,
	}

	_DEFAULT_PROJECT_FILE = Path('$PW_PROJECT_ROOT/.pw_ide.yaml')
	_DEFAULT_PROJECT_USER_FILE = Path('$PW_PROJECT_ROOT/.pw_ide.user.yaml')
	_DEFAULT_USER_FILE = Path('$HOME/.pw_ide.yaml')


	def _expand_any_vars(input_path: Path) -> Path:
	"""Expand any environment variables in a path.

	Python's ``os.path.expandvars`` will only work on an isolated environment
	variable name. In shell, you can expand variables within a larger command
	or path. We replicate that functionality here.
	"""
	outputs = []

	for token in input_path.parts:
	expanded_var = os.path.expandvars(token)

	if expanded_var == token:
	outputs.append(token)
	else:
	outputs.append(expanded_var)

	# pylint: disable=no-value-for-parameter
	return Path(os.path.join(*outputs))
	# pylint: enable=no-value-for-parameter


	def _expand_any_vars_str(input_path: str) -> str:
	"""`_expand_any_vars`, except takes and returns a string instead of path."""
	return str(_expand_any_vars(Path(input_path)))


	def _parse_dir_path(input_path_str: str) -> Path:
	if (path := Path(input_path_str)).is_absolute():
	return path

	return Path.cwd() / path


	def _parse_compdb_search_path(
	input_data: str \| tuple[str, str], default_inference: str
	) -> tuple[Path, str]:
	if isinstance(input_data, (tuple, list)):
	return _parse_dir_path(input_data[0]), input_data[1]

	return _parse_dir_path(input_data), default_inference


	class PigweedIdeSettings(YamlConfigLoaderMixin):
	"""Pigweed IDE features settings storage class."""

	def __init__(
	self,
	project_file: Path \| bool = _DEFAULT_PROJECT_FILE,
	project_user_file: Path \| bool = _DEFAULT_PROJECT_USER_FILE,
	user_file: Path \| bool = _DEFAULT_USER_FILE,
	default_config: dict[str, Any] \| None = None,
	) -> None:
	self.config_init(
	config_section_title='pw_ide',
	project_file=project_file,
	project_user_file=project_user_file,
	user_file=user_file,
	default_config=_DEFAULT_CONFIG
	if default_config is None
	else default_config,
	environment_var='PW_IDE_CONFIG_FILE',
	)

	def __repr__(self) -> str:
	return str(
	{
	key: getattr(self, key)
	for key, value in self.__class__.__dict__.items()
	if isinstance(value, property)
	}
	)

	@property
	def working_dir(self) -> Path:
	"""Path to the ``pw_ide`` working directory.

	The working directory holds C++ compilation databases and caches, and
	other supporting files. This should not be a directory that's regularly
	deleted or manipulated by other processes (e.g. the GN ``out``
	directory) nor should it be committed to source control.
	"""
	return Path(
	_expand_any_vars_str(
	self._config.get('working_dir', PW_IDE_DEFAULT_DIR)
	)
	)

	@property
	def compdb_gen_cmd(self) -> str \| None:
	"""The command that should be run to generate a compilation database.

	Defining this allows ``pw_ide`` to automatically generate a compilation
	database if it suspects one has not been generated yet before a sync.
	"""
	return self._config.get('compdb_gen_cmd')

	@property
	def compdb_search_paths(self) -> list[tuple[Path, str]]:
	"""Paths to directories to search for compilation databases.

	If you're using a build system to generate compilation databases, this
	may simply be your build output directory. However, you can add
	additional directories to accommodate compilation databases from other
	sources.

	Entries can be just directories, in which case the default target
	inference pattern will be used. Or entries can be tuples of a directory
	and a target inference pattern. See the documentation for
	``target_inference`` for more information.

	Finally, the directories can be concrete paths, or they can be globs
	that expand to multiple paths.
	"""
	return [
	_parse_compdb_search_path(search_path, self.target_inference)
	for search_path in self._config.get(
	'compdb_search_paths', [_DEFAULT_BUILD_DIR]
	)
	]

	@property
	def targets_exclude(self) -> list[str]:
	"""The list of targets that should not be enabled for code analysis.

	In this case, "target" is analogous to a GN target, i.e., a particular
	build configuration. By default, all available targets are enabled. By
	adding targets to this list, you can disable/hide targets that should
	not be available for code analysis.

	Target names need to match the name of the directory that holds the
	build system artifacts for the target. For example, GN outputs build
	artifacts for the ``pw_strict_host_clang_debug`` target in a directory
	with that name in its output directory. So that becomes the canonical
	name for the target.
	"""
	return self._config.get('targets_exclude', list())

	@property
	def targets_include(self) -> list[str]:
	"""The list of targets that should be enabled for code analysis.

	In this case, "target" is analogous to a GN target, i.e., a particular
	build configuration. By default, all available targets are enabled. By
	adding targets to this list, you can constrain the targets that are
	enabled for code analysis to a subset of those that are available, which
	may be useful if your project has many similar targets that are
	redundant from a code analysis perspective.

	Target names need to match the name of the directory that holds the
	build system artifacts for the target. For example, GN outputs build
	artifacts for the ``pw_strict_host_clang_debug`` target in a directory
	with that name in its output directory. So that becomes the canonical
	name for the target.
	"""
	return self._config.get('targets_include', list())

	@property
	def target_inference(self) -> str:
	"""A glob-like string for extracting a target name from an output path.

	Build systems and projects have varying ways of organizing their build
	directory structure. For a given compilation unit, we need to know how
	to extract the build's target name from the build artifact path. A
	simple example:

	.. code-block:: none

	clang++ hello.cc -o host/obj/hello.cc.o

	The top-level directory ``host`` is the target name we want. The same
	compilation unit might be used with another build target:

	.. code-block:: none

	gcc-arm-none-eabi hello.cc -o arm_dev_board/obj/hello.cc.o

	In this case, this compile command is associated with the
	``arm_dev_board`` target.

	When importing and processing a compilation database, we assume by
	default that for each compile command, the corresponding target name is
	the name of the top level directory within the build directory root
	that contains the build artifact. This is the default behavior for most
	build systems. However, if your project is structured differently, you
	can provide a glob-like string that indicates how to extract the target
	name from build artifact path.

	A ``*`` indicates any directory, and ``?`` indicates the directory that
	has the name of the target. The path is resolved from the build
	directory root, and anything deeper than the target directory is
	ignored. For example, a glob indicating that the directory two levels
	down from the build directory root has the target name would be
	expressed with ``//?``.

	Note that the build artifact path is relative to the compilation
	database search path that found the file. For example, for a compilation
	database search path of ``{project dir}/out``, for the purposes of
	target inference, the build artifact path is relative to the ``{project
	dir}/out`` directory. Target inference patterns can be defined for each
	compilation database search path. See the documentation for
	``compdb_search_paths`` for more information.
	"""
	return self._config.get('target_inference', _DEFAULT_TARGET_INFERENCE)

	@property
	def default_target(self) -> str \| None:
	"""The default target to use when calling ``--set-default``.

	This target will be selected when ``pw ide cpp --set-default`` is
	called. You can define an explicit default target here. If that command
	is invoked without a default target definition, ``pw_ide`` will try to
	infer the best choice of default target. Currently, it selects the
	target with the broadest compilation unit coverage.
	"""
	return self._config.get('default_target', None)

	@property
	def sync(self) -> list[str]:
	"""A sequence of commands to automate IDE features setup.

	``pw ide sync`` should do everything necessary to get the project from
	a fresh checkout to a working default IDE experience. This defines the
	list of commands that makes that happen, which will be executed
	sequentially in subprocesses. These commands should be idempotent, so
	that the user can run them at any time to update their IDE features
	configuration without the risk of putting those features in a bad or
	unexpected state.
	"""
	return self._config.get('sync', list())

	@property
	def clangd_alternate_path(self) -> Path \| None:
	"""An alternate path to ``clangd`` to use instead of Pigweed's.

	Pigweed provides the ``clang`` toolchain, including ``clangd``, via
	CIPD, and by default, ``pw_ide`` will look for that toolchain in the
	CIPD directory at ``$PW_PIGWEED_CIPD_INSTALL_DIR`` or in an alternate
	CIPD directory specified by ``$PW_{project name}_CIPD_INSTALL_DIR`` if
	it exists.

	If your project needs to use a ``clangd`` located somewhere else not
	covered by the cases described above, you can define the path to that
	``clangd`` here.
	"""
	return self._config.get('clangd_alternate_path', None)

	@property
	def clangd_additional_query_drivers(self) -> list[str]:
	"""Additional query driver paths that clangd should use.

	By default, ``pw_ide`` supplies driver paths for the toolchains included
	in Pigweed. If you are using toolchains that are not supplied by
	Pigweed, you should include path globs to your toolchains here. These
	paths will be given higher priority than the Pigweed toolchain paths.
	"""
	return self._config.get('clangd_additional_query_drivers', list())

	def clangd_query_drivers(self, host_clang_cc_path: Path) -> list[str]:
	drivers = [
	*[
	_expand_any_vars_str(p)
	for p in self.clangd_additional_query_drivers
	],
	]

	drivers.append(str(host_clang_cc_path.parent / '*'))

	if (env_var := env_vars.get('PW_ARM_CIPD_INSTALL_DIR')) is not None:
	drivers.append(str(Path(env_var) / 'bin' / '*'))

	return drivers

	def clangd_query_driver_str(self, host_clang_cc_path: Path) -> str:
	return ','.join(self.clangd_query_drivers(host_clang_cc_path))

	@property
	def editors(self) -> dict[str, bool]:
	"""Enable or disable automated support for editors.

	Automatic support for some editors is provided by ``pw_ide``, which is
	accomplished through generating configuration files in your project
	directory. All supported editors are enabled by default, but you can
	disable editors by adding an ``'<editor>': false`` entry.
	"""
	return self._config.get('editors', _DEFAULT_SUPPORTED_EDITORS)

	def editor_enabled(self, editor: SupportedEditorName) -> bool:
	"""True if the provided editor is enabled in settings.

	This module will integrate the project with all supported editors by
	default. If the project or user want to disable particular editors,
	they can do so in the appropriate settings file.
	"""
	return self._config.get('editors', {}).get(editor, False)

	@property
	def cascade_targets(self) -> bool:
	"""Mix compile commands for multiple targets to maximize code coverage.

	By default (with this set to ``False``), the compilation database for
	each target is consistent in the sense that it only contains compile
	commands for one build target, so the code intelligence that database
	provides is related to a single, known compilation artifact. However,
	this means that code intelligence may not be provided for every source
	file in a project, because some source files may be relevant to targets
	other than the one you have currently set. Those source files won't
	have compile commands for the current target, and no code intelligence
	will appear in your editor.

	If this is set to ``True``, compilation databases will still be
	separated by target, but compile commands for all other targets will
	be appended to the list of compile commands for that target. This
	will maximize code coverage, ensuring that you have code intelligence
	for every file that is built for any target, at the cost of
	consistency—the code intelligence for some files may show information
	that is incorrect or irrelevant to the currently selected build target.

	The currently set target's compile commands will take priority at the
	top of the combined file, then all other targets' commands will come
	after in order of the number of commands they have (i.e. in the order of
	their code coverage). This relies on the fact that ``clangd`` parses the
	compilation database from the top down, using the first compile command
	it encounters for each compilation unit.
	"""
	return self._config.get('cascade_targets', False)


	def _docstring_set_default(
	obj: Any, default: Any, literal: bool = False
	) -> None:
	"""Add a default value annotation to a docstring.

	Formatting isn't allowed in docstrings, so by default we can't inject
	variables that we would like to appear in the documentation, like the
	default value of a property. But we can use this function to add it
	separately.
	"""
	if obj.__doc__ is not None:
	default = str(default)

	if literal:
	lines = default.splitlines()

	if len(lines) == 0:
	return
	if len(lines) == 1:
	default = f'Default: ``{lines[0]}``'
	else:
	default = 'Default:\n\n.. code-block::\n\n ' + '\n '.join(
	lines
	)

	doc = cast(str, obj.__doc__)
	obj.__doc__ = f'{cleandoc(doc)}\n\n{default}'


	_docstring_set_default(
	PigweedIdeSettings.working_dir, PW_IDE_DIR_NAME, literal=True
	)
	_docstring_set_default(
	PigweedIdeSettings.compdb_gen_cmd,
	_DEFAULT_CONFIG['compdb_gen_cmd'],
	literal=True,
	)
	_docstring_set_default(
	PigweedIdeSettings.compdb_search_paths,
	[_DEFAULT_BUILD_DIR_NAME],
	literal=True,
	)
	_docstring_set_default(
	PigweedIdeSettings.targets_exclude,
	_DEFAULT_CONFIG['targets_exclude'],
	literal=True,
	)
	_docstring_set_default(
	PigweedIdeSettings.targets_include,
	_DEFAULT_CONFIG['targets_include'],
	literal=True,
	)
	_docstring_set_default(
	PigweedIdeSettings.default_target,
	_DEFAULT_CONFIG['default_target'],
	literal=True,
	)
	_docstring_set_default(
	PigweedIdeSettings.cascade_targets,
	_DEFAULT_CONFIG['cascade_targets'],
	literal=True,
	)
	_docstring_set_default(
	PigweedIdeSettings.target_inference,
	_DEFAULT_CONFIG['target_inference'],
	literal=True,
	)
	_docstring_set_default(
	PigweedIdeSettings.sync, _DEFAULT_CONFIG['sync'], literal=True
	)
	_docstring_set_default(
	PigweedIdeSettings.clangd_alternate_path,
	_DEFAULT_CONFIG['clangd_alternate_path'],
	literal=True,
	)
	_docstring_set_default(
	PigweedIdeSettings.clangd_additional_query_drivers,
	_DEFAULT_CONFIG['clangd_additional_query_drivers'],
	literal=True,
	)
	_docstring_set_default(
	PigweedIdeSettings.editors,
	yaml.dump(_DEFAULT_SUPPORTED_EDITORS),
	literal=True,
	)