Safe Haskell	None
Language	Haskell2010

Data.Git.Hash

Description

Pretty much everything in git works by SHA1 hashes. The Sha1 type represents a 20-byte "binary" hash. The Sha1Hex type is for the 40-byte hex representation of a hash.

Synopsis

newtype Sha1 = Sha1 {
- getSha1 :: ByteString
}
validSha1 :: Sha1 -> Bool
newtype Sha1Hex = Sha1Hex {
- getSha1Hex :: ByteString
}
validSha1Hex :: Sha1Hex -> Bool
class HasSha1 a where
- sha1 :: a -> Sha1
sha1hex :: HasSha1 a => a -> Sha1Hex
fromHex :: Sha1Hex -> Sha1
toHex :: Sha1 -> Sha1Hex

Documentation

newtype Sha1 Source #

A 20-byte "binary" SHA1 hash.

Constructors

Sha1
Fields getSha1 :: ByteString

Instances

Eq Sha1 Source #
Instance details Defined in Data.Git.Hash Methods (==) :: Sha1 -> Sha1 -> Bool # (/=) :: Sha1 -> Sha1 -> Bool #
Ord Sha1 Source #
Instance details Defined in Data.Git.Hash Methods compare :: Sha1 -> Sha1 -> Ordering # (<) :: Sha1 -> Sha1 -> Bool # (<=) :: Sha1 -> Sha1 -> Bool # (>) :: Sha1 -> Sha1 -> Bool # (>=) :: Sha1 -> Sha1 -> Bool # max :: Sha1 -> Sha1 -> Sha1 # min :: Sha1 -> Sha1 -> Sha1 #
Show Sha1 Source #
Instance details Defined in Data.Git.Hash Methods showsPrec :: Int -> Sha1 -> ShowS # show :: Sha1 -> String # showList :: [Sha1] -> ShowS #

validSha1 :: Sha1 -> Bool Source #

Ensure a Sha1 is valid (that is, is 20 bytes long).

newtype Sha1Hex Source #

A 40-byte hex representation of a SHA1 hash.

Constructors

Sha1Hex
Fields getSha1Hex :: ByteString

Instances

Eq Sha1Hex Source #
Instance details Defined in Data.Git.Hash Methods (==) :: Sha1Hex -> Sha1Hex -> Bool # (/=) :: Sha1Hex -> Sha1Hex -> Bool #
Ord Sha1Hex Source #
Instance details Defined in Data.Git.Hash Methods compare :: Sha1Hex -> Sha1Hex -> Ordering # (<) :: Sha1Hex -> Sha1Hex -> Bool # (<=) :: Sha1Hex -> Sha1Hex -> Bool # (>) :: Sha1Hex -> Sha1Hex -> Bool # (>=) :: Sha1Hex -> Sha1Hex -> Bool # max :: Sha1Hex -> Sha1Hex -> Sha1Hex # min :: Sha1Hex -> Sha1Hex -> Sha1Hex #
Show Sha1Hex Source #
Instance details Defined in Data.Git.Hash Methods showsPrec :: Int -> Sha1Hex -> ShowS # show :: Sha1Hex -> String # showList :: [Sha1Hex] -> ShowS #
IsString Sha1Hex Source #	This isn't checked; buyer beware.
Instance details Defined in Data.Git.Hash Methods fromString :: String -> Sha1Hex #

validSha1Hex :: Sha1Hex -> Bool Source #

Ensure a Sha1Hex is valid (that is, is 40 bytes long and consists only of hex characters).

class HasSha1 a where Source #

A Hashable-alike for Sha1s.

Methods

sha1 :: a -> Sha1 Source #

Instances

HasSha1 ByteString Source #	Direct SHA1 of a lazy bytestring.
Instance details Defined in Data.Git.Hash Methods sha1 :: ByteString -> Sha1 Source #
HasSha1 ByteString Source #	Direct SHA1 of a bytestring.
Instance details Defined in Data.Git.Hash Methods sha1 :: ByteString -> Sha1 Source #
HasSha1 Tag Source #
Instance details Defined in Data.Git.Internal.Object Methods sha1 :: Tag -> Sha1 Source #
HasSha1 Object Source #
Instance details Defined in Data.Git.Internal.Object Methods sha1 :: Object -> Sha1 Source #
HasSha1 Commit Source #
Instance details Defined in Data.Git.Internal.Object Methods sha1 :: Commit -> Sha1 Source #
HasSha1 Tree Source #
Instance details Defined in Data.Git.Internal.Object Methods sha1 :: Tree -> Sha1 Source #
HasSha1 Blob Source #
Instance details Defined in Data.Git.Internal.Object Methods sha1 :: Blob -> Sha1 Source #

sha1hex :: HasSha1 a => a -> Sha1Hex Source #

Hash something to a Sha1Hex

fromHex :: Sha1Hex -> Sha1 Source #

Convert a Sha1Hex into a Sha1

toHex :: Sha1 -> Sha1Hex Source #

Convert a Sha1 to a Sha1Hex