darcs-2.11.0: a distributed, interactive, smart revision control system

Safe HaskellNone

Darcs.Patch.Prim

Synopsis

Documentation

showPrim :: PrimShow prim => FileNameFormat -> prim wA wB -> Doc

showPrimFL :: PrimShow prim => FileNameFormat -> FL prim wA wB -> Doc

primIsAddfile :: PrimClassify prim => prim wX wY -> Bool

primIsHunk :: PrimClassify prim => prim wX wY -> Bool

primIsBinary :: PrimClassify prim => prim wX wY -> Bool

primIsSetpref :: PrimClassify prim => prim wX wY -> Bool

primIsAdddir :: PrimClassify prim => prim wX wY -> Bool

is_filepatch :: PrimClassify prim => prim wX wY -> Maybe FileName

canonize :: PrimCanonize prim => DiffAlgorithm -> prim wX wY -> FL prim wX wY

It can sometimes be handy to have a canonical representation of a given patch. We achieve this by defining a canonical form for each patch type, and a function canonize which takes a patch and puts it into canonical form. This routine is used by the diff function to create an optimal patch (based on an LCS algorithm) from a simple hunk describing the old and new version of a file.

tryToShrink :: PrimCanonize prim => FL prim wX wY -> FL prim wX wY

tryToShrink ps simplifies ps by getting rid of self-cancellations or coalescing patches

Question (Eric Kow): what properties should this have? For example, the prim1 implementation only gets rid of the first self-cancellation it finds (as far as I can tell). Is that OK? Can we try harder?

sortCoalesceFL :: PrimCanonize prim => FL prim wX wY -> FL prim wX wY

sortCoalesceFL ps coalesces as many patches in ps as possible, sorting the results in some standard order.

coalesce :: PrimCanonize prim => (prim :> prim) wX wY -> Maybe (FL prim wX wY)

canonizeFL :: PrimCanonize prim => DiffAlgorithm -> FL prim wX wY -> FL prim wX wY

canonizeFL ps puts a sequence of primitive patches into canonical form. Even if the patches are just hunk patches, this is not necessarily the same set of results as you would get if you applied the sequence to a specific tree and recalculated a diff.

Note that this process does not preserve the commutation behaviour of the patches and is therefore not appropriate for use when working with already recorded patches (unless doing amend-record or the like).

tryShrinkingInverse :: PrimCanonize prim => FL prim wX wY -> Maybe (FL prim wX wY)

tryShrinkingInverse ps deletes the first subsequence of primitive patches that is followed by the inverse subsequence, if one exists. If not, it returns Nothing

summarizePrim :: PrimDetails prim => prim wX wY -> [SummDetail]

applyPrimFL :: (PrimApply prim, ApplyMonad (ApplyState prim) m) => FL prim wX wY -> m ()

readPrim :: (PrimRead prim, ParserM m) => FileNameFormat -> m (Sealed (prim wX))

class FromPrim p where

Methods

fromPrim :: PrimOf p wX wY -> p wX wY

class FromPrims p where

Methods

fromPrims :: FL (PrimOf p) wX wY -> p wX wY

Instances

FromPrim p => FromPrims (RL p) 
FromPrim p => FromPrims (FL p) 

class FromPrim p => ToFromPrim p where

Methods

toPrim :: p wX wY -> Maybe (PrimOf p wX wY)

Instances

class (Patchy prim, MyEq prim, PatchListFormat prim, IsHunk prim, RepairToFL prim, PatchInspect prim, ReadPatch prim, ShowPatch prim, Show2 prim, PrimConstruct prim, PrimCanonize prim, PrimClassify prim, PrimDetails prim, PrimShow prim, PrimRead prim, PrimApply prim) => PrimPatch prim

class PrimConstruct prim where

Methods

addfile :: FilePath -> prim wX wY

rmfile :: FilePath -> prim wX wY

adddir :: FilePath -> prim wX wY

rmdir :: FilePath -> prim wX wY

move :: FilePath -> FilePath -> prim wX wY

changepref :: String -> String -> String -> prim wX wY

hunk :: FilePath -> Int -> [ByteString] -> [ByteString] -> prim wX wY

tokreplace :: FilePath -> String -> String -> String -> prim wX wY

binary :: FilePath -> ByteString -> ByteString -> prim wX wY

primFromHunk :: FileHunk wX wY -> prim wX wY

anIdentity :: prim wX wX