Path utilities

path_utilities

A module for managing Edk2 file paths agnostic to OS path separators ("/" vs "\").

This module converts all windows style paths to Posix file paths internally, but will return the OS specific path with the exception of of any function that returns an Edk2 style path, which will always return Posix form.

Edk2Path

Represents edk2 file paths.

Class that helps perform path operations within an EDK workspace.

Attributes:

Name	Type	Description
WorkspacePath	str	Absolute path to the workspace root.
PackagePathList	List[str]	List of absolute paths to a package.

Attributes are initialized by the constructor and are read-only.

Warning

Edk2Path performs expensive packages path and package validation when instantiated. If using the same Workspace root and packages path, it is suggested that only a single Edk2Path instance is instantiated and passed to any consumers.

WorkspacePath property

WorkspacePath: str

Workspace Path as a string.

PackagePathList property

PackagePathList: list[str]

List of package paths as strings.

__init__

__init__(
    ws: os.PathLike,
    package_path_list: Iterable[os.PathLike],
    error_on_invalid_pp: bool = True,
) -> Edk2Path

Constructor.

Parameters:

Name	Type	Description	Default
ws	PathLike	absolute path or cwd relative path of the workspace.	required
package_path_list	Iterable[PathLike]	list of packages path. Entries can be Absolute path, workspace relative path, or CWD relative.	required
error_on_invalid_pp	bool	default value is True. If packages path value is invalid raise exception.	True

Raises:

Type	Description
NotADirectoryError	Invalid workspace or package path directory.

GetEdk2RelativePathFromAbsolutePath

GetEdk2RelativePathFromAbsolutePath(*abspath: str) -> str

Transforms an absolute path to an edk2 path relative to the workspace or a packages path.

Parameters:

Name	Type	Description	Default
*abspath	str	absolute path to a file or directory. Can be the entire path or parts of the path provided separately. Supports both Windows and Posix style paths	()

Returns:

Type	Description
str	POSIX-like path relative to the workspace or packages path
None	abspath is None
None	path is not valid

Example

    rel_path = edk2path.GetEdk2RelativePathFromAbsolutePath("C:/Workspace/edk2/MdePkg/Include")
    rel_path = edk2path.GetEdk2RelativePathFromAbsolutePath("C:/Workspace", "edk2", "MdePkg", "Include")

GetAbsolutePathOnThisSystemFromEdk2RelativePath

GetAbsolutePathOnThisSystemFromEdk2RelativePath(
    *relpath: str, log_errors: Optional[bool] = True
) -> str

Given a relative path return an absolute path to the file in this workspace.

Parameters:

Name	Type	Description	Default
*relpath	str	Relative path to convert. Can be the entire path or parts of the path provided separately	()
log_errors	Optional[bool]	whether to log errors	True

Returns:

Type	Description
str	absolute path in the OS specific form
None	invalid relpath
None	Unable to get the absolute path

Example

    abs_path = edk2path.GetAbsolutePathOnThisSystemFromEdk2RelativePath("MdePkg/Include")
    abs_path = edk2path.GetAbsolutePathOnThisSystemFromEdk2RelativePath("MdePkg", "Include")

GetContainingPackage

GetContainingPackage(InputPath: str) -> str

Finds the package that contains the given path.

This isn't perfect, but at least identifies the direcotry consistently.

Parameters:

Name	Type	Description	Default
InputPath	str	absolute path to a file, directory, or module. Supports both windows and posix paths.	required

Returns:

Type	Description
str	name of the package that the path is in.

GetContainingModules

GetContainingModules(input_path: str) -> list[str]

Find the list of modules (inf files) for a file path.

This function only accepts absolute paths. An exception will

be raised if a non-absolute path is given.

If input_path does not exist in the filesystem, this function

will try to return the likely containing module(s) but if the entire module has been deleted, this isn't possible.

• If a .inf file is given, that file is returned.
• Otherwise, the nearest set of .inf files (in the closest parent) will be returned in a list of file path strings.

Parameters:

Name	Type	Description	Default
input_path	str	Absolute path to a file, directory, or module. Supports both Windows and Posix like paths.	required

Returns:

Type	Description
list[str]	Absolute paths of .inf files that could be the containing module.