Struct Workspace

pub struct Workspace<'cfg> { /* private fields */ }

The core abstraction in Cargo for working with a workspace of crates.

A workspace is often created very early on and then threaded through all other functions. It’s typically through this object that the current package is loaded and/or learned about.

Implementations

impl<'cfg> Workspace<'cfg>

pub fn new( manifest_path: &Path, config: &'cfg Config, ) -> CargoResult<Workspace<'cfg>>

Creates a new workspace given the target manifest pointed to by manifest_path.

This function will construct the entire workspace by determining the root and all member packages. It will then validate the workspace before returning it, so Ok is only returned for valid workspaces.

pub fn new_virtual( root_path: PathBuf, current_manifest: PathBuf, manifest: VirtualManifest, config: &'cfg Config, ) -> CargoResult<Workspace<'cfg>>

pub fn ephemeral( package: Package, config: &'cfg Config, target_dir: Option<Filesystem>, require_optional_deps: bool, ) -> CargoResult<Workspace<'cfg>>

Creates a “temporary workspace” from one package which only contains that package.

This constructor will not touch the filesystem and only creates an in-memory workspace. That is, all configuration is ignored, it’s just intended for that one package.

This is currently only used in niche situations like cargo install or cargo package.

pub fn current(&self) -> CargoResult<&Package>

Returns the current package of this workspace.

Note that this can return an error if it the current manifest is actually a “virtual Cargo.toml”, in which case an error is returned indicating that something else should be passed.

pub fn current_mut(&mut self) -> CargoResult<&mut Package>

pub fn current_opt(&self) -> Option<&Package>

pub fn current_opt_mut(&mut self) -> Option<&mut Package>

pub fn is_virtual(&self) -> bool

pub fn config(&self) -> &'cfg Config

Returns the Config this workspace is associated with.

pub fn profiles(&self) -> Option<&TomlProfiles>

pub fn root(&self) -> &Path

Returns the root path of this workspace.

That is, this returns the path of the directory containing the Cargo.toml which is the root of this workspace.

pub fn target_dir(&self) -> Filesystem

pub fn root_replace(&self) -> &[(PackageIdSpec, Dependency)]

Returns the root [replace] section of this workspace.

This may be from a virtual crate or an actual crate.

pub fn root_patch(&self) -> &HashMap<Url, Vec<Dependency>>

Returns the root [patch] section of this workspace.

This may be from a virtual crate or an actual crate.

pub fn members<'a>(&'a self) -> Members<'a, 'cfg>

Returns an iterator over all packages in this workspace

pub fn default_members<'a>(&'a self) -> Members<'a, 'cfg>

Returns an iterator over default packages in this workspace

pub fn is_member(&self, pkg: &Package) -> bool

Returns true if the package is a member of the workspace.

pub fn is_ephemeral(&self) -> bool

pub fn require_optional_deps(&self) -> bool

pub fn set_require_optional_deps( &mut self, require_optional_deps: bool, ) -> &mut Workspace<'cfg>

pub fn ignore_lock(&self) -> bool

pub fn set_ignore_lock(&mut self, ignore_lock: bool) -> &mut Workspace<'cfg>

pub fn features(&self) -> &Features

pub fn load(&self, manifest_path: &Path) -> CargoResult<Package>

pub fn preload(&self, registry: &mut PackageRegistry<'cfg>)

Preload the provided registry with already loaded packages.

A workspace may load packages during construction/parsing/early phases for various operations, and this preload step avoids doubly-loading and parsing crates on the filesystem by inserting them all into the registry with their in-memory formats.

pub fn emit_warnings(&self) -> CargoResult<()>

pub fn set_target_dir(&mut self, target_dir: Filesystem)

pub fn members_with_features( &self, specs: &[PackageIdSpec], requested_features: &RequestedFeatures, ) -> CargoResult<Vec<(&Package, RequestedFeatures)>>

Returns a Vec of (&Package, RequestedFeatures) tuples that represent the workspace members that were requested on the command-line.

specs may be empty, which indicates it should return all workspace members. In this case, requested_features.all_features must be true. This is used for generating Cargo.lock, which must include all members with all features enabled.

Trait Implementations

impl<'cfg> Debug for Workspace<'cfg>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.