Enum HashStrategy 

pub enum HashStrategy {
    None,
    Generate(HashGeneration),
    Verify(Arc<FxHashMap<VersionId, Vec<HashDigest>>>),
    Require(Arc<FxHashMap<VersionId, Vec<HashDigest>>>),
}

Variants

None

No hash policy is specified.

Generate(HashGeneration)

Hashes should be generated (specifically, a SHA-256 hash), but not validated.

Verify(Arc<FxHashMap<VersionId, Vec<HashDigest>>>)

Hashes should be validated, if present, but ignored if absent.

If necessary, hashes should be generated to ensure that the archive is valid.

Require(Arc<FxHashMap<VersionId, Vec<HashDigest>>>)

Hashes should be validated against a pre-defined list of hashes.

If necessary, hashes should be generated to ensure that the archive is valid.

Implementations

impl HashStrategy

pub fn get<T: DistributionMetadata>(&self, distribution: &T) -> HashPolicy<'_>

Return the HashPolicy for the given distribution.

pub fn get_package( &self, name: &PackageName, version: &Version, ) -> HashPolicy<'_>

Return the HashPolicy for the given registry-based package.

pub fn get_url(&self, url: &DisplaySafeUrl) -> HashPolicy<'_>

Return the HashPolicy for the given direct URL package.

pub fn allows_package(&self, name: &PackageName, version: &Version) -> bool

Returns true if the given registry-based package is allowed.

pub fn allows_url(&self, url: &DisplaySafeUrl) -> bool

Returns true if the given direct URL package is allowed.

pub fn from_requirements<'a>( requirements: impl Iterator<Item = (&'a UnresolvedRequirement, &'a [String])>, constraints: impl Iterator<Item = (&'a Requirement, &'a [String])>, marker_env: Option<&ResolverMarkerEnvironment>, mode: HashCheckingMode, ) -> Result<Self, HashStrategyError>

Generate the required hashes from a set of UnresolvedRequirement entries.

When the environment is not given, this treats all marker expressions that reference the environment as true. In other words, it does environment independent expression evaluation. (Which in turn devolves to “only evaluate marker expressions that reference an extra name.”)

pub fn from_resolution( resolution: &Resolution, mode: HashCheckingMode, ) -> Result<Self, HashStrategyError>

Generate the required hashes from a Resolution.

Trait Implementations

impl Clone for HashStrategy

fn clone(&self) -> HashStrategy

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HashStrategy

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

Formats the value using the given formatter.

impl Default for HashStrategy

fn default() -> HashStrategy

Returns the “default value” for a type.