Struct FetchMetadata 

pub(crate) struct FetchMetadata {
    command: MetadataCommand,
    manifest_path: ManifestPath,
    lockfile_copy: Option<LockfileCopy>,
    kind: &'static str,
    no_deps: bool,
    no_deps_result: Result<Metadata>,
    other_options: Vec<String>,
}

Fields

command: MetadataCommand

manifest_path: ManifestPath

lockfile_copy: Option<LockfileCopy>

kind: &'static str

no_deps: bool

no_deps_result: Result<Metadata>

other_options: Vec<String>

Implementations

impl FetchMetadata

pub(crate) fn new( cargo_toml: &ManifestPath, current_dir: &AbsPath, config: &CargoMetadataConfig, sysroot: &Sysroot, no_deps: bool, ) -> Self

Builds a command to fetch metadata for the given cargo_toml manifest.

Performs a lightweight pre-fetch using the --no-deps option, available via FetchMetadata::no_deps_metadata, to gather basic information such as the target-dir.

The provided sysroot is used to set the RUSTUP_TOOLCHAIN environment variable when invoking Cargo, ensuring that the rustup proxy selects the correct toolchain.

pub(crate) fn exec( self, locked: bool, progress: &dyn Fn(String), ) -> Result<(Metadata, Option<Error>)>

Executes the metadata-fetching command.

A successful result may still contain a metadata error if the full fetch failed, but the fallback --no-deps pre-fetch succeeded during command construction.