Distribution.Client.HashValue

Documentation

data HashValue

Instances

Structured HashValue

Defined in Distribution.Client.HashValue

Methods

structure :: Proxy HashValue -> Structure

structureHash' :: Tagged HashValue MD5

Generic HashValue

Defined in Distribution.Client.HashValue

Associated Types

type Rep HashValue :: Type -> Type

Methods

from :: HashValue -> Rep HashValue x

to :: Rep HashValue x -> HashValue

Show HashValue

Defined in Distribution.Client.HashValue

Methods

showsPrec :: Int -> HashValue -> ShowS

show :: HashValue -> String

showList :: [HashValue] -> ShowS

Binary HashValue

Defined in Distribution.Client.HashValue

Methods

put :: HashValue -> Put

get :: Get HashValue

putList :: [HashValue] -> Put

Eq HashValue

Defined in Distribution.Client.HashValue

Methods

(==) :: HashValue -> HashValue -> Bool

(/=) :: HashValue -> HashValue -> Bool

type Rep HashValue

Defined in Distribution.Client.HashValue

type Rep HashValue = D1 ('MetaData "HashValue" "Distribution.Client.HashValue" "cabal-install-3.10.1.0-FbhGUvZ0l0XIx7QbOQfSVh" 'True) (C1 ('MetaCons "HashValue" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 ByteString)))

hashValue :: ByteString -> HashValue

Hash some data. Currently uses SHA256.

truncateHash :: 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

showHashValue :: HashValue -> String

readFileHashValue :: FilePath -> IO HashValue

Hash the content of a file. Uses SHA256.

hashFromTUF :: 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.