West APIs

This page documents the Python APIs provided by west, as well as some additional APIs used by the west extensions in the zephyr repository.

Warning

These APIs should be considered unstable until west version 1.0 (see west #38).

Contents:

west.commands
- WestCommand
- Exceptions
west.configuration
- Reading and writing options
- Global configuration instance
west.log
- Verbosity control
- Output functions
west.manifest
west.util
- Functions
- Exceptions

west.commands 

All built-in and extension commands are implemented as subclasses of the WestCommand class defined here. Some exception types are also provided.

WestCommand 

class west.commands.WestCommand

Instance attributes:

name: As passed to the constructor.

help: As passed to the constructor.

description: As passed to the constructor.

accepts_unknown_args: As passed to the constructor.

requires_workspace: As passed to the constructor.

New in version 0.7.0.

parser: The argument parser created by calling WestCommand.add_parser().

Instance properties:

manifest: A property which returns the west.manifest.Manifest instance for the current manifest file or aborts the program if one was not provided. This is only safe to use from the do_run() method.

New in version 0.6.1.

Changed in version 0.7.0: This is now settable.

has_manifest: True if reading the manifest property will succeed instead of erroring out.

git_version_info: A tuple of Git version information.

New in version 0.11.0.

Constructor:

WestCommand.__init__(name: str, help: str, description: str, accepts_unknown_args: bool = False, requires_workspace: bool = True)

Abstract superclass for a west command.

Some fields, such as name, help, and description, overlap with kwargs that should be passed to the argparse.ArgumentParser added by WestCommand.add_parser. This wart is by design: argparse doesn’t make many API stability guarantees, so this information must be duplicated here for future-proofing.

Parameters

name – the command’s name, as entered by the user
help – one-line command help text
description – multi-line command description
accepts_unknown_args – if true, the command can handle arbitrary unknown command line arguments in WestCommand.run. Otherwise, it’s a fatal to pass unknown arguments.
requires_workspace – if true, the command requires a west workspace to run, and running it outside of one is a fatal error.

Changed in version 0.8.0: The topdir parameter can now be any os.PathLike.

New in version 0.6.0: The requires_installation parameter.

New in version 0.7.0: The requires_workspace parameter.

Methods:

WestCommand.run(args: argparse.Namespace, unknown: List[str], topdir: Union[str, os.PathLike], manifest: Optional[west.manifest.Manifest] = None, config: Optional[west.configuration.Configuration] = None) → None

Run the command.

This raises west.commands.CommandContextError if the command cannot be run due to a context mismatch. Other exceptions may be raised as well.

Parameters

args – known arguments parsed via WestCommand.add_parser
unknown – unknown arguments present on the command line; must be empty unless accepts_unknown_args is true
topdir – west workspace topdir, accessible as a str via self.topdir from WestCommand.do_run
manifest – west.manifest.Manifest or None, accessible as self.manifest from WestCommand.do_run
config – west.configuration.Configuration or None, accessible as self.config from WestCommand.do_run

Changed in version 0.6.0: The topdir argument was added.

WestCommand.add_parser(parser_adder) → argparse.ArgumentParser

Registers a parser for this command, and returns it.

The parser object is stored in a parser attribute.

Parameters: parser_adder – The return value of a call to argparse.ArgumentParser.add_subparsers()

static WestCommand.check_call(args, cwd=None): Runs subprocess.check_call(args, cwd=cwd) after logging the call at VERBOSE_VERY level.

Changed in version 0.11.0.

static WestCommand.check_output(args, cwd=None): Runs subprocess.check_output(args, cwd=cwd) after logging the call at VERBOSE_VERY level.

Changed in version 0.11.0.

All subclasses must provide the following abstract methods, which are used to implement the above:

abstract WestCommand.do_add_parser(parser_adder) → argparse.ArgumentParser

Subclass method for registering command line arguments.

This is called by WestCommand.add_parser to register the command’s options and arguments.

Subclasses should parser_adder.add_parser() to add an ArgumentParser for that subcommand, then add any arguments. The final parser must be returned.

Parameters: parser_adder – The return value of a call to argparse.ArgumentParser.add_subparsers()

abstract WestCommand.do_run(args: argparse.Namespace, unknown: List[str])

Subclasses must implement; called to run the command.

Parameters

args – argparse.Namespace of parsed arguments
unknown – If accepts_unknown_args is true, a sequence of un-parsed argument strings.

Exceptions 

class west.commands.CommandError(returncode=1)

Bases: RuntimeError

Indicates that a command failed.

returncode: Recommended program exit code for this error.

class west.commands.CommandContextError(returncode=1)

Bases: west.commands.CommandError

Indicates that a context-dependent command could not be run.

west.configuration 

West configuration file handling.

West follows Git-like conventions for configuration file locations. There are three types of configuration file: system-wide files apply to all users on the current machine, global files apply to the current user, and local files apply to the current west workspace.

System files:

Linux: /etc/westconfig
macOS: /usr/local/etc/westconfig
Windows: %PROGRAMDATA%\west\config

Global files:

Linux: ~/.westconfig or (if $XDG_CONFIG_HOME is set) $XDG_CONFIG_HOME/west/config
macOS: ~/.westconfig
Windows: .westconfig in the user’s home directory, as determined by os.path.expanduser.

Local files:

Linux, macOS, Windows: <workspace-topdir>/.west/config

You can override these files’ locations with the WEST_CONFIG_SYSTEM, WEST_CONFIG_GLOBAL, and WEST_CONFIG_LOCAL environment variables.

Configuration values from later configuration files override configuration from earlier ones. Local values have highest precedence, and system values lowest.

This provides API access to west configuration files and data.

Reading and writing options 

west.configuration.read_config(configfile: typing.Optional[west.configuration.ConfigFile] = None, config: configparser.ConfigParser = <configparser.ConfigParser object>, topdir: typing.Optional[typing.Union[str, os.PathLike]] = None) → None

Read configuration files into config.

Reads the files given by configfile, storing the values into the configparser.ConfigParser object config. If config is not given, the global west.configuration.config object is used.

If configfile is given, only the files implied by its value are read. If not given, ConfigFile.ALL is used.

If configfile requests local configuration options (i.e. if it is ConfigFile.LOCAL or ConfigFile.ALL:

If topdir is given, topdir/.west/config is read

Next, if WEST_CONFIG_LOCAL is set in the environment, its contents (a file) are used.

Otherwise, the file system is searched for a local configuration file, and a failure to find one is ignored.

Parameters

configfile – a west.configuration.ConfigFile
config – configuration object to read into
topdir – west workspace root to read local options from

Changed in version 0.8.0: The deprecated read_config parameter was removed.

Changed in version 0.6.0: Errors due to an inability to find a local configuration file are ignored.

west.configuration.update_config(section: str, key: str, value: Any, configfile: west.configuration.ConfigFile = ConfigFile.LOCAL, topdir: Optional[Union[str, os.PathLike]] = None) → None

Sets section.key to value in the given configuration file.

Parameters

section – config section; will be created if it does not exist
key – key to set in the given section
value – value to set the key to
configfile – west.configuration.ConfigFile, must not be ALL
topdir – west workspace root to write local config options to

The destination file to write is given by configfile. The default value (ConfigFile.LOCAL) writes to the local configuration file given by:

topdir/.west/config, if topdir is given, or
the value of ‘WEST_CONFIG_LOCAL’ in the environment, if set, or
the local configuration file in the west workspace found by searching the file system (raising WestNotFound if one is not found).

class west.configuration.ConfigFile(value)

Types of west configuration file.

Enumeration members:

SYSTEM: system level configuration shared by all users
GLOBAL: global or user-wide configuration
LOCAL: per-workspace configuration
ALL: all three of the above, where applicable

Global configuration instance 

west.configuration.config: Module-global ConfigParser instance for the current configuration. This should be initialized with west.configuration.read_config() before being read.

west.log 

Provides common methods for printing messages to display to the user.

WestCommand instances should generally use the functions in this module rather than calling print() directly if possible, as these respect the color.ui configuration option and verbosity level.

This module’s functions are used whenever a running west command needs to print to standard out or error streams.

This is safe to use from extension commands if you want output that mirrors that of west itself.

Verbosity control 

To set the global verbosity level, use set_verbosity().

west.log.set_verbosity(value)

Set the logging verbosity level.

Parameters: value – verbosity level to set, e.g. VERBOSE_VERY.

These verbosity levels are defined.

west.log.VERBOSE_NONE = 0: Default verbosity level, no dbg() messages printed.

west.log.VERBOSE_NORMAL = 1: Some verbose messages printed.

west.log.VERBOSE_VERY = 2: Very verbose output messages will be printed.

west.log.VERBOSE_EXTREME = 3: Extremely verbose output messages will be printed.

Output functions 

The main functions are dbg(), inf(), wrn(), err(), and die(). Two special cases of inf(), banner() and small_banner(), are also available for grouping output into “sections”.

west.log.dbg(*args, level=1)

Print a verbose debug logging message.

Parameters

args – sequence of arguments to print.
value – verbosity level to set, e.g. VERBOSE_VERY.

The message is only printed if level is at least the current verbosity level.

west.log.inf(*args, colorize=False)

Print an informational message.

Parameters

args – sequence of arguments to print.
colorize – If this is True, the configuration option color.ui is undefined or true, and stdout is a terminal, then the message is printed in green.

west.log.wrn(*args)

Print a warning.

Parameters: args – sequence of arguments to print.

The message is prefixed with the string "WARNING: ".

If the configuration option color.ui is undefined or true and stdout is a terminal, then the message is printed in yellow.

west.log.err(*args, fatal=False)

Print an error.

This function does not abort the program. For that, use die().

Parameters

args – sequence of arguments to print.
fatal – if True, the the message is prefixed with “FATAL ERROR: “; otherwise, “ERROR: ” is used.

If the configuration option color.ui is undefined or true and stdout is a terminal, then the message is printed in red.

west.log.die(*args, exit_code=1) → NoReturn

Print a fatal error, and abort the program.

Parameters

args – sequence of arguments to print.
exit_code – return code the program should use when aborting.

Equivalent to die(*args, fatal=True), followed by an attempt to abort with the given exit_code.

west.log.banner(*args)

Prints args as a “banner” at inf() level.

The args are prefixed with ‘=== ‘ and colorized by default.

west.log.small_banner(*args): Prints args as a smaller banner(), i.e. prefixed with ‘– ‘ and not colorized.

west.manifest 

Parser and abstract data types for west manifests.

The main classes are Manifest and Project. These represent the contents of a manifest file. The recommended methods for parsing west manifests are Manifest.from_file() and Manifest.from_data().

Constants and functions 

west.manifest.MANIFEST_PROJECT_INDEX = 0: Index in a Manifest.projects attribute where the ManifestProject instance for the workspace is stored.

west.manifest.MANIFEST_REV_BRANCH = 'manifest-rev': A git revision which points to the most recent Project update.

west.manifest.QUAL_MANIFEST_REV_BRANCH = 'refs/heads/manifest-rev': A fully qualified reference to MANIFEST_REV_BRANCH.

west.manifest.QUAL_REFS_WEST = 'refs/west/': Git ref space used by west for internal purposes.

west.manifest.SCHEMA_VERSION = '0.13'

The latest manifest schema version supported by this west program.

This value changes when a new version of west includes new manifest file features not supported by earlier versions of west.

west.manifest.manifest_path() → str

Absolute path of the manifest file in the current workspace.

Exceptions raised:

west.util.WestNotFound if called from outside of a west workspace

MalformedConfig if the configuration file has no manifest.path key

FileNotFoundError if no manifest file exists as determined by manifest.path and manifest.file

west.manifest.validate(data: Any) → Dict[str, Any]

Validate manifest data

Raises an exception if the manifest data is not valid for loading by this version of west. (Actually attempting to load the data may still fail if the it contains imports which cannot be resolved.)

Returns the validated YAML dictionary, which may be convenient if the argument was a str and further loading is required.

Parameters: data – YAML manifest data as a string or object

Manifest and sub-objects 

class west.manifest.Manifest(*, source_data: Optional[Union[str, Dict]] = None, topdir: Optional[Union[str, os.PathLike]] = None, config: Optional[west.configuration.Configuration] = None, importer: Optional[Callable[[west.manifest.Project, str], Optional[Union[str, List[str]]]]] = None, import_flags: west.manifest.ImportFlag = ImportFlag.DEFAULT, internal_import_ctx: Optional[west.manifest._import_ctx] = None)

The parsed contents of a west manifest file.

__init__(*, source_data: Optional[Union[str, Dict]] = None, topdir: Optional[Union[str, os.PathLike]] = None, config: Optional[west.configuration.Configuration] = None, importer: Optional[Callable[[west.manifest.Project, str], Optional[Union[str, List[str]]]]] = None, import_flags: west.manifest.ImportFlag = ImportFlag.DEFAULT, internal_import_ctx: Optional[west.manifest._import_ctx] = None)

Using one of the factory methods may be easier than direct instantiation.

Instance attributes:

abspath: absolute path to the manifest file, or None

posixpath: like abspath, but with slashes (/) as separators

relative_path: path to the manifest file relative to the workspace topdir (i.e. the combined manifest.path and manifest.file configuration options), or None

yaml_path: the value of the “self: path:” field in the manifest YAML, or None

repo_path: relative filesystem path to the manifest repository from the workspace topdir as a string, or None

repo_abspath: the absolute filesystem path to the manifest repository as a string with symlinks resolved, or None

repo_posixpath: like repo_abspath, but with slashes as separators

topdir: the workspace top level directory as a string
with symlinks resolved, or None

projects: sequence of Project instances

has_imports: bool, True if the manifest contains an “import:” attribute in “self:” or “projects:” that were not ignored due to import_flags; False otherwise

group_filter: a group filter value equivalent to the resolved manifest’s “group-filter:”, along with any values from imported manifests. This value may be simpler than the actual input data.

You must give exactly one of the topdir and source_data kwargs:

Use topdir to load a manifest from a workspace

Use source_data to load data without any workspace

If topdir is given:

You may pass config if you already have the desired workspace configuration loaded. This is used to find the manifest file’s location from the manifest.path and manifest.file options. It’s your responsibility to make sure config is properly loaded from topdir in this case.

If you don’t pass config, the constructor will instantiate the correct Configuration object itself.

The return value’s absolute paths will be relative to topdir. If topdir is not an absolute path, it will be resolved first (this resolves symlinks too). If it is absolute, it will not be resolved.

If source_data is given:

You cannot pass config.

Manifest imports will fail unless you pass importer or ignore them with import_flags.

All absolute paths (like projects[i].abspath) in the results will be None.

The importer kwarg, if given, is a callable. It is used as a callback by the constructor when it must import manifest data that aren’t found locally on the file system.

The importer callback will be called as:

importer(project, file)

where project is a west.manifest.Project and file is the missing manifest file. The file’s contents at refs/heads/manifest-rev should usually be returned by the callback, potentially after fetching the project’s revision from its remote URL and updating that ref.

The importer callback’s return value should be a string containing manifest data, or a list of strings if file is a directory containing YAML files. A return value of None will cause the import to be ignored.

Exceptions raised:

MalformedManifest: if the manifest data is invalid

ManifestImportFailed: if an import failed

ManifestVersionError: if this version of west is too old to parse the manifest (based on its schema version)

OSError: or subclasses, when files cannot be opened

ValueError: for other invalid arguments

Parameters

source_data – parsed YAML data as a Python object, or a string containing unparsed YAML data
topdir – west workspace top level directory
config – optional pre-loaded configuration from topdir
importer – provides missing manifest import data
import_flags – bit mask, controls import resolution
internal_import_ctx – for internal use only; do not use

Changed in version 0.7.0: The importer and import_flags keyword arguments.

static from_file(source_file: Optional[Union[str, os.PathLike]] = None, importer: Optional[Callable[[west.manifest.Project, str], Optional[Union[str, List[str]]]]] = None, import_flags: west.manifest.ImportFlag = ImportFlag.DEFAULT) → west.manifest.Manifest

Manifest object factory given a source YAML file.

The default behavior if source_file is not given is to find the current west workspace’s manifest file and resolve it starting from the current working directory. This matches the from_topdir() behavior.

With source_file, the topdir is found starting there. As a special case, this factory allows you to load a Manifest from an arbitrary file in an arbitrary git repository in the workspace. The manifest.path and manifest.file configuration values do not have to refer to source_file in this case.

This can be useful to load an alternative manifest file within an existing workspace for purposes of comparing two manifests, for example.

Exceptions raised:

west.util.WestNotFound if no topdir can be found starting from source_file or the current working directory

CalledProcessError if the git repository containing source_file cannot be found

Other exceptions from the Manifest constructor

Parameters

source_file – source file to load
importer – passed to Manifest()
import_flags – passed to Manifest()

Changed in version 0.8.0: The source_file, manifest_path, and topdir arguments can now be any os.PathLike.

Changed in version 0.7.0: **kwargs added.

static from_data(source_data: Union[str, Dict], importer: Optional[Callable[[west.manifest.Project, str], Optional[Union[str, List[str]]]]] = None, import_flags: west.manifest.ImportFlag = ImportFlag.DEFAULT) → west.manifest.Manifest

Manifest object factory given parsed YAML data.

This factory does not read any configuration files.

Let the return value be m. Relative project paths in m (like m.projects[1].path) are taken from source_data. Absolute project paths are all None.

May raise the same exceptions as the Manifest constructor.

Parameters

source_data – parsed YAML data as a Python object, or a string with unparsed YAML data
importer – passed to Manifest
import_flags – passed to Manifest

Changed in version 0.7.0: **kwargs added, and source_data may be a str.

Conveniences for accessing sub-objects by name or other identifier:

get_projects(project_ids: Iterable[Union[str, os.PathLike]], allow_paths: bool = True, only_cloned: bool = False) → List[west.manifest.Project]

Get a list of Project objects in the manifest from project_ids.

If project_ids is empty, a copy of self.projects attribute is returned as a list. Otherwise, the returned list has projects in the same order as project_ids.

ValueError is raised if:

project_ids contains unknown project IDs

(with only_cloned) an uncloned project was found

The ValueError args attribute is a 2-tuple with a list of unknown project_ids at index 0, and a list of uncloned Project objects at index 1.

Parameters

project_ids – a sequence of projects, identified by name or (absolute or relative) path. Names are matched first; path checking can be disabled with allow_paths.
allow_paths – if false, project_ids is assumed to contain names only, not paths
only_cloned – raise an exception for uncloned projects

Changed in version 0.8.0: The project_ids sequence can now contain any os.PathLike.

New in version 0.6.1.

Additional methods:

as_dict() → Dict

Returns a dict representing self, fully resolved.

The value is “resolved” in that the result is as if all projects had been defined in a single manifest without any import attributes.

New in version 0.7.0.

as_frozen_dict() → Dict

Returns a dict representing self, but frozen.

The value is “frozen” in that all project revisions are the full SHAs pointed to by QUAL_MANIFEST_REV_BRANCH references.

Raises RuntimeError if a project SHA can’t be resolved.

as_yaml(**kwargs) → str

Returns a YAML representation for self, fully resolved.

The value is “resolved” in that the result is as if all projects had been defined in a single manifest without any import attributes.

Parameters: kwargs – passed to yaml.safe_dump()

New in version 0.7.0.

as_frozen_yaml(**kwargs) → str

Returns a YAML representation for self, but frozen.

The value is “frozen” in that all project revisions are the full SHAs pointed to by QUAL_MANIFEST_REV_BRANCH references.

Raises RuntimeError if a project SHA can’t be resolved.

Parameters: kwargs – passed to yaml.safe_dump()

New in version 0.7.0.

is_active(project: west.manifest.Project, extra_filter: Optional[Iterable[str]] = None) → bool

Is a project active?

Projects with empty ‘project.groups’ lists are always active.

Otherwise, if any group in ‘project.groups’ is enabled by this manifest’s ‘group-filter:’ list (and the ‘manifest.group-filter’ local configuration option, if we have a workspace), returns True.

Otherwise, i.e. if all of the project’s groups are disabled, this returns False.

“Inactive” projects should generally be considered absent from the workspace for purposes like updating it, listing projects, etc.

Parameters

project – project to check
extra_filter – an optional additional group filter

New in version 0.9.0.

class west.manifest.ImportFlag(value)

Bit flags for handling imports when resolving a manifest.

Note that any “path-prefix:” values set in an “import:” still take effect for the project itself even when IGNORE or IGNORE_PROJECTS are given. For example, in this manifest:

manifest:
  projects:
  - name: foo
    import:
      path-prefix: bar

Project ‘foo’ has path ‘bar/foo’ regardless of whether IGNORE or IGNORE_PROJECTS is given. This ensures the Project has the same path attribute as it normally would if imported projects weren’t being ignored.

DEFAULT = 0: The default value, 0, reads the file system to resolve “self: import:”, and runs git to resolve a “projects:” import.

IGNORE = 1: Ignore projects added via “import:” in “self:” and “projects:”

FORCE_PROJECTS = 2: Always invoke importer callback for “projects:” imports

IGNORE_PROJECTS = 4: Ignore projects added via “import:” : in “projects:” only; including any projects added via “import:” : in “self:”

class west.manifest.Project(name: str, url: str, revision: Optional[str] = None, path: Optional[Union[str, os.PathLike]] = None, submodules: Union[List[west.manifest.Submodule], bool] = False, clone_depth: Optional[int] = None, west_commands: Optional[Union[str, List[str]]] = None, topdir: Optional[Union[str, os.PathLike]] = None, remote_name: Optional[str] = None, groups: Optional[List[str]] = None, userdata: Optional[Any] = None)

Represents a project defined in a west manifest.

Attributes:

name: project’s unique name
url: project fetch URL
revision: revision to fetch from url when the project is updated
path: relative path to the project within the workspace (i.e. from topdir if that is set)
abspath: absolute path to the project in the native path name format (or None if topdir is)
posixpath: like abspath, but with slashes (/) as path separators
clone_depth: clone depth to fetch when first cloning the project, or None (the revision should not be a SHA if this is used)
west_commands: list of YAML files where extension commands in the project are declared
topdir: the top level directory of the west workspace the project is part of, or None
remote_name: the name of the remote which should be set up when the project is being cloned (default: ‘origin’)
groups: the project’s groups (as a list) as given in the manifest. If the manifest data contains no groups for the project, this is an empty list.
submodules: the project’s submodules configuration; either a list of Submodule objects, or a boolean.
userdata: the parsed ‘userdata’ field in the manifest, or None

Changed in version 0.8.0: The west_commands attribute is now always a list. In previous releases, it could be a string or None.

Changed in version 0.7.0: The remote attribute was removed. Its semantics could no longer be preserved when support for manifest import keys was added.

New in version 0.7.0: The remote_name and name_and_path attributes.

New in version 0.9.0: The group_filter and submodules attributes.

New in version 0.12.0: The userdata attribute.

Constructor:

__init__(name: str, url: str, revision: Optional[str] = None, path: Optional[Union[str, os.PathLike]] = None, submodules: Union[List[west.manifest.Submodule], bool] = False, clone_depth: Optional[int] = None, west_commands: Optional[Union[str, List[str]]] = None, topdir: Optional[Union[str, os.PathLike]] = None, remote_name: Optional[str] = None, groups: Optional[List[str]] = None, userdata: Optional[Any] = None)

Project constructor.

If topdir is None, then absolute path attributes (abspath and posixpath) will also be None.

Parameters

name – project’s name: attribute in the manifest
url – fetch URL
revision – fetch revision
path – path (relative to topdir), or None for name
submodules – submodules to pull within the project
clone_depth – depth to use for initial clone
west_commands – path to a west commands specification YAML file in the project, relative to its base directory, or list of these
topdir – the west workspace’s top level directory
remote_name – the name of the remote which should be set up if the project is being cloned (default: ‘origin’)
groups – a list of groups found in the manifest data for the project, after conversion to str and validation.

Changed in version 0.8.0: The path and topdir parameters can now be any os.PathLike.

Changed in version 0.7.0: The parameters were incompatibly changed from previous versions.

Methods:

as_dict() → Dict: Return a representation of this object as a dict, as it would be parsed from an equivalent YAML manifest.

New in version 0.7.0.

git(cmd: Union[str, List[str]], extra_args: Iterable[str] = (), capture_stdout: bool = False, capture_stderr: bool = False, check: bool = True, cwd: Optional[Union[str, os.PathLike]] = None) → subprocess.CompletedProcess

Run a git command in the project repository.

Parameters

cmd – git command as a string (or list of strings)
extra_args – sequence of additional arguments to pass to the git command (useful mostly if cmd is a string).
capture_stdout – if True, git’s standard output is captured in the CompletedProcess instead of being printed.
capture_stderr – Like capture_stdout, but for standard error. Use with caution: this may prevent error messages from being shown to the user.
check – if given, subprocess.CalledProcessError is raised if git finishes with a non-zero return code
cwd – directory to run git in (default: self.abspath)

Changed in version 0.6.1: The capture_stderr kwarg.

Changed in version 0.7.0: The (now removed) Project.format method is no longer called on arguments.

sha(rev: str, cwd: Optional[Union[str, os.PathLike]] = None) → str

Get the SHA for a project revision.

Parameters

rev – git revision (HEAD, v2.0.0, etc.) as a string
cwd – directory to run command in (default: self.abspath)

Changed in version 0.7.0: Standard error is now captured.

is_ancestor_of(rev1: str, rev2: str, cwd: Optional[Union[str, os.PathLike]] = None) → bool

Check if ‘rev1’ is an ancestor of ‘rev2’ in this project.

Returns True if rev1 is an ancestor commit of rev2 in the given project; rev1 and rev2 can be anything that resolves to a commit. (If rev1 and rev2 refer to the same commit, the return value is True, i.e. a commit is considered an ancestor of itself.) Returns False otherwise.

Parameters

rev1 – commit that could be the ancestor of rev2
rev2 – commit that could be a descendant or rev1
cwd – directory to run command in (default: self.abspath)

Changed in version 0.8.0: The cwd parameter can now be any os.PathLike.

is_cloned(cwd: Optional[Union[str, os.PathLike]] = None) → bool

Returns True if self.abspath looks like a git repository’s top-level directory, and False otherwise.

Parameters: cwd – directory to run command in (default: self.abspath)

Changed in version 0.8.0: The cwd parameter can now be any os.PathLike.

New in version 0.6.1.

is_up_to_date_with(rev: str, cwd: Optional[Union[str, os.PathLike]] = None) → bool

Check if the project is up to date with rev, returning True if so.

This is equivalent to is_ancestor_of(rev, 'HEAD', cwd=cwd).

Parameters

rev – base revision to check if project is up to date with.
cwd – directory to run command in (default: self.abspath)

Changed in version 0.8.0: The cwd parameter can now be any os.PathLike.

is_up_to_date(cwd: Optional[Union[str, os.PathLike]] = None) → bool

Check if the project HEAD is up to date with the manifest.

This is equivalent to is_up_to_date_with(self.revision, cwd=cwd).

Parameters: cwd – directory to run command in (default: self.abspath)

Changed in version 0.8.0: The cwd parameter can now be any os.PathLike.

read_at(path: Union[str, os.PathLike], rev: Optional[str] = None, cwd: Optional[Union[str, os.PathLike]] = None) → bytes

Read file contents in the project at a specific revision.

Parameters

path – relative path to file in this project
rev – revision to read path from (default: self.revision)
cwd – directory to run command in (default: self.abspath)

Changed in version 0.8.0: The cwd parameter can now be any os.PathLike.

New in version 0.7.0.

listdir_at(path: Union[str, os.PathLike], rev: Optional[str] = None, cwd: Optional[Union[str, os.PathLike]] = None, encoding: Optional[str] = None) → List[str]

List of directory contents in the project at a specific revision.

The return value is the directory contents as a list of files and subdirectories.

Parameters

path – relative path to file in this project
rev – revision to read path from (default: self.revision)
cwd – directory to run command in (default: self.abspath)
encoding – directory contents encoding (default: ‘utf-8’)

Changed in version 0.8.0: The cwd parameter can now be any os.PathLike.

New in version 0.7.0.

class west.manifest.ManifestProject(path: Optional[Union[str, os.PathLike]] = None, west_commands: Optional[Union[str, List[str]]] = None, topdir: Optional[Union[str, os.PathLike]] = None, userdata: Optional[Any] = None)

Represents the manifest repository as a Project.

Meaningful attributes:

name: the string "manifest"
topdir: the top level directory of the west workspace the manifest project controls, or None
path: relative path to the manifest repository within the workspace, or None (i.e. from topdir if that is set)
abspath: absolute path to the manifest repository in the native path name format (or None if topdir is)
posixpath: like abspath, but with slashes (/) as path separators
west_commands:west_commands: key in the manifest’s self: map. This may be a list of such if the self section imports multiple additional files with west commands.
userdata: the parsed ‘userdata’ field under self in the manifest file

Other readable attributes included for Project compatibility:

url: the empty string; the west manifest is not version-controlled by west itself, even though ‘west init’ can fetch a manifest repository from a Git remote
revision: "HEAD"
clone_depth: None, because there’s no URL
groups: the empty list

A limited subset of Project methods is supported. Results for calling others are not specified.

Changed in version 0.8.0: The url attribute is now the empty string instead of None. The abspath attribute is created using os.path.abspath() instead of os.path.realpath(), improving support for symbolic links.

as_dict() → Dict: Return a representation of this object as a dict, as it would be parsed from an equivalent YAML manifest.

New in version 0.6.0.

class west.manifest.Submodule(path: str, name: Optional[str] = None): Represents a Git submodule within a project.

New in version 0.9.0.

Exceptions 

class west.manifest.MalformedManifest

Bases: Exception

Manifest parsing failed due to invalid data.

class west.manifest.MalformedConfig

Bases: Exception

The west configuration was malformed in a way that made a manifest operation fail.

class west.manifest.ManifestVersionError(version: str, file: Optional[Union[str, os.PathLike]] = None)

Bases: Exception

The manifest required a version of west more recent than the current version.

Changed in version 0.8.0: The file argument can now be any os.PathLike.

class west.manifest.ManifestImportFailed(project: Optional[west.manifest.Project], imp: Any)

Bases: Exception

An operation required to resolve a manifest failed.

Attributes:

project: the Project instance with the missing manifest data; None if it’s from the manifest via “manifest: self: import:”
imp: the parsed YAML data whose import was requested

Changed in version 0.8.0: The filename argument can now be any os.PathLike.

west.util 

Miscellaneous utilities.

Functions 

west.util.west_dir(start: Optional[Union[str, os.PathLike]] = None) → str

Returns the absolute path of the workspace’s .west directory.

Starts the search from the start directory, and goes to its parents. If the start directory is not specified, the current directory is used.

Raises WestNotFound if no .west directory is found.

Changed in version 0.8.0: The start parameter can be any os.PathLike.

west.util.west_topdir(start: Optional[Union[str, os.PathLike]] = None, fall_back: bool = True) → str: Like west_dir(), but returns the path to the parent directory of the .west/ directory instead, where project repositories are stored

Changed in version 0.8.0: The start parameter can be any os.PathLike.

Exceptions 

class west.util.WestNotFound

Bases: RuntimeError

Neither the current directory nor any parent has a west workspace.