Modulecabal-install-3.12.1.0Haskell2010

Distribution.Client.HashValue

newtypenewtype HashValue

Instances6Eq, Show, Generic, Binary, Structured, Rep

Eq HashValueDefined in cabal-install-3.12.1.0 · Distribution.Client.HashValue
Show HashValueDefined in cabal-install-3.12.1.0 · Distribution.Client.HashValue
Generic HashValueDefined in cabal-install-3.12.1.0 · Distribution.Client.HashValue
Binary HashValueDefined in cabal-install-3.12.1.0 · Distribution.Client.HashValue
Structured HashValueDefined in cabal-install-3.12.1.0 · Distribution.Client.HashValue
type Rep HashValue = D1 ('MetaData "HashValue" "Distribution.Client.HashValue" "cabal-install-3.12.1.0-1D90DH9PPem9Tqn79I9vRN" 'True) (C1 ('MetaCons "HashValue" 'PrefixI 'False) (S1 ('MetaSel 'Nothing 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 ByteString)))Defined in cabal-install-3.12.1.0 · Distribution.Client.HashValue

valuehashValue :: ByteString -> HashValue

Hash some data. Currently uses SHA256.

valuetruncateHash :: Int -> HashValue -> HashValue

Truncate a 32 byte SHA256 hash to

For example 20 bytes render as 40 hex chars, which we use for unit-ids. Or even 4 bytes for hashedInstalledPackageIdShort

valueshowHashValue :: HashValue -> String

valuereadFileHashValue :: FilePath -> IO HashValue

Hash the content of a file. Uses SHA256.

valuehashFromTUF :: Hash -> HashValue

Convert a hash from TUF metadata into a PackageSourceHash.

Note that TUF hashes don't necessarily have to be SHA256, since it can support new algorithms in future.