{-# LANGUAGE OverloadedStrings #-}
module Darcs.UI.Commands.Revert ( revert ) where
import Prelude ()
import Darcs.Prelude
import Control.Exception ( catch, IOException )
import Data.List ( sort )
import Darcs.UI.Flags
( DarcsFlag, diffingOpts, verbosity, diffAlgorithm, isInteractive, withContext
, dryRun, umask, useCache, fixSubPaths )
import Darcs.UI.Options ( (^), odesc, ocheck, onormalise, defaultFlags, (?) )
import qualified Darcs.UI.Options.All as O
import Darcs.Repository.Flags ( UpdateWorking(..) )
import Darcs.UI.Commands ( DarcsCommand(..), withStdOpts, nodefaults, amInHashedRepository, putInfo )
import Darcs.UI.Commands.Util ( announceFiles )
import Darcs.UI.Commands.Unrevert ( writeUnrevert )
import Darcs.UI.Completion ( modifiedFileArgs )
import Darcs.Util.Global ( debugMessage )
import Darcs.Util.Path ( toFilePath, AbsolutePath )
import Darcs.Repository
( withRepoLock
, RepoJob(..)
, addToPending
, applyToWorking
, readRecorded
, unrecordedChanges
)
import Darcs.Patch ( invert, effectOnFilePaths, commute )
import Darcs.Patch.Split ( reversePrimSplitter )
import Darcs.Patch.Witnesses.Ordered ( FL(..), (:>)(..), nullFL, (+>+) )
import Darcs.Patch.Witnesses.Sealed ( Sealed(..) )
import Darcs.UI.SelectChanges
( WhichChanges(Last)
, selectionContextPrim
, runSelection
)
import qualified Darcs.UI.SelectChanges as S ( PatchSelectionOptions(..) )
import Darcs.Patch.TouchesFiles ( chooseTouching )
revertDescription :: String
revertDescription :: String
revertDescription = "Discard unrecorded changes."
revertHelp :: String
revertHelp :: String
revertHelp =
"The `darcs revert` command discards unrecorded changes the working\n" String -> String -> String
forall a. [a] -> [a] -> [a]
++
"tree. As with `darcs record`, you will be asked which hunks (changes)\n" String -> String -> String
forall a. [a] -> [a] -> [a]
++
"to revert. The `--all` switch can be used to avoid such prompting. If\n" String -> String -> String
forall a. [a] -> [a] -> [a]
++
"files or directories are specified, other parts of the working tree\n" String -> String -> String
forall a. [a] -> [a] -> [a]
++
"are not reverted.\n" String -> String -> String
forall a. [a] -> [a] -> [a]
++
"\n" String -> String -> String
forall a. [a] -> [a] -> [a]
++
"In you accidentally reverted something you wanted to keep (for\n" String -> String -> String
forall a. [a] -> [a] -> [a]
++
"example, typing `darcs rev -a` instead of `darcs rec -a`), you can\n" String -> String -> String
forall a. [a] -> [a] -> [a]
++
"immediately run `darcs unrevert` to restore it. This is only\n" String -> String -> String
forall a. [a] -> [a] -> [a]
++
"guaranteed to work if the repository has not changed since `darcs\n" String -> String -> String
forall a. [a] -> [a] -> [a]
++
"revert` ran.\n"
patchSelOpts :: [DarcsFlag] -> S.PatchSelectionOptions
patchSelOpts :: [DarcsFlag] -> PatchSelectionOptions
patchSelOpts flags :: [DarcsFlag]
flags = PatchSelectionOptions :: Verbosity
-> [MatchFlag]
-> Bool
-> SelectDeps
-> Summary
-> WithContext
-> PatchSelectionOptions
S.PatchSelectionOptions
{ verbosity :: Verbosity
S.verbosity = PrimDarcsOption Verbosity
verbosity PrimDarcsOption Verbosity -> [DarcsFlag] -> Verbosity
forall (d :: * -> *) f v.
(forall a. PrimOptSpec d f a v) -> [f] -> v
? [DarcsFlag]
flags
, matchFlags :: [MatchFlag]
S.matchFlags = []
, interactive :: Bool
S.interactive = Bool -> [DarcsFlag] -> Bool
isInteractive Bool
True [DarcsFlag]
flags
, selectDeps :: SelectDeps
S.selectDeps = SelectDeps
O.PromptDeps
, summary :: Summary
S.summary = Summary
O.NoSummary
, withContext :: WithContext
S.withContext = PrimDarcsOption WithContext
withContext PrimDarcsOption WithContext -> [DarcsFlag] -> WithContext
forall (d :: * -> *) f v.
(forall a. PrimOptSpec d f a v) -> [f] -> v
? [DarcsFlag]
flags
}
revert :: DarcsCommand [DarcsFlag]
revert :: DarcsCommand [DarcsFlag]
revert = DarcsCommand :: forall parsedFlags.
String
-> String
-> String
-> String
-> Int
-> [String]
-> ((AbsolutePath, AbsolutePath)
-> parsedFlags -> [String] -> IO ())
-> ([DarcsFlag] -> IO (Either String ()))
-> ((AbsolutePath, AbsolutePath)
-> [DarcsFlag] -> [String] -> IO [String])
-> ([DarcsFlag] -> AbsolutePath -> [String] -> IO [String])
-> [DarcsOptDescr DarcsFlag]
-> [DarcsOptDescr DarcsFlag]
-> [DarcsFlag]
-> ([DarcsFlag] -> [String])
-> ([DarcsFlag] -> parsedFlags)
-> DarcsCommand parsedFlags
DarcsCommand
{ commandProgramName :: String
commandProgramName = "darcs"
, commandName :: String
commandName = "revert"
, commandHelp :: String
commandHelp = String
revertHelp
, commandDescription :: String
commandDescription = String
revertDescription
, commandExtraArgs :: Int
commandExtraArgs = -1
, commandExtraArgHelp :: [String]
commandExtraArgHelp = ["[FILE or DIRECTORY]..."]
, commandCommand :: (AbsolutePath, AbsolutePath) -> [DarcsFlag] -> [String] -> IO ()
commandCommand = (AbsolutePath, AbsolutePath) -> [DarcsFlag] -> [String] -> IO ()
revertCmd
, commandPrereq :: [DarcsFlag] -> IO (Either String ())
commandPrereq = [DarcsFlag] -> IO (Either String ())
amInHashedRepository
, commandCompleteArgs :: (AbsolutePath, AbsolutePath)
-> [DarcsFlag] -> [String] -> IO [String]
commandCompleteArgs = (AbsolutePath, AbsolutePath)
-> [DarcsFlag] -> [String] -> IO [String]
modifiedFileArgs
, commandArgdefaults :: [DarcsFlag] -> AbsolutePath -> [String] -> IO [String]
commandArgdefaults = [DarcsFlag] -> AbsolutePath -> [String] -> IO [String]
nodefaults
, commandAdvancedOptions :: [DarcsOptDescr DarcsFlag]
commandAdvancedOptions = OptSpec DarcsOptDescr DarcsFlag Any (UseIndex -> UMask -> Any)
-> [DarcsOptDescr DarcsFlag]
forall (d :: * -> *) f a b. OptSpec d f a b -> [d f]
odesc OptSpec DarcsOptDescr DarcsFlag Any (UseIndex -> UMask -> Any)
forall a.
OptSpec DarcsOptDescr DarcsFlag a (UseIndex -> UMask -> a)
revertAdvancedOpts
, commandBasicOptions :: [DarcsOptDescr DarcsFlag]
commandBasicOptions = OptSpec
DarcsOptDescr
DarcsFlag
Any
(Maybe Bool -> Maybe String -> WithContext -> DiffAlgorithm -> Any)
-> [DarcsOptDescr DarcsFlag]
forall (d :: * -> *) f a b. OptSpec d f a b -> [d f]
odesc OptSpec
DarcsOptDescr
DarcsFlag
Any
(Maybe Bool -> Maybe String -> WithContext -> DiffAlgorithm -> Any)
forall a.
OptSpec
DarcsOptDescr
DarcsFlag
a
(Maybe Bool -> Maybe String -> WithContext -> DiffAlgorithm -> a)
revertBasicOpts
, commandDefaults :: [DarcsFlag]
commandDefaults = OptSpec
DarcsOptDescr
DarcsFlag
[DarcsFlag]
(Maybe Bool
-> Maybe String
-> WithContext
-> DiffAlgorithm
-> Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> [DarcsFlag])
-> [DarcsFlag]
forall (d :: * -> *) f b. OptSpec d f [f] b -> [f]
defaultFlags OptSpec
DarcsOptDescr
DarcsFlag
[DarcsFlag]
(Maybe Bool
-> Maybe String
-> WithContext
-> DiffAlgorithm
-> Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> [DarcsFlag])
forall a.
DarcsOption
a
(Maybe Bool
-> Maybe String
-> WithContext
-> DiffAlgorithm
-> Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> a)
revertOpts
, commandCheckOptions :: [DarcsFlag] -> [String]
commandCheckOptions = OptSpec
DarcsOptDescr
DarcsFlag
Any
(Maybe Bool
-> Maybe String
-> WithContext
-> DiffAlgorithm
-> Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> Any)
-> [DarcsFlag] -> [String]
forall (d :: * -> *) f a b. OptSpec d f a b -> [f] -> [String]
ocheck OptSpec
DarcsOptDescr
DarcsFlag
Any
(Maybe Bool
-> Maybe String
-> WithContext
-> DiffAlgorithm
-> Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> Any)
forall a.
DarcsOption
a
(Maybe Bool
-> Maybe String
-> WithContext
-> DiffAlgorithm
-> Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> a)
revertOpts
, commandParseOptions :: [DarcsFlag] -> [DarcsFlag]
commandParseOptions = OptSpec
DarcsOptDescr
DarcsFlag
[DarcsFlag]
(Maybe Bool
-> Maybe String
-> WithContext
-> DiffAlgorithm
-> Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> [DarcsFlag])
-> [DarcsFlag] -> [DarcsFlag]
forall (d :: * -> *) f b. OptSpec d f [f] b -> [f] -> [f]
onormalise OptSpec
DarcsOptDescr
DarcsFlag
[DarcsFlag]
(Maybe Bool
-> Maybe String
-> WithContext
-> DiffAlgorithm
-> Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> [DarcsFlag])
forall a.
DarcsOption
a
(Maybe Bool
-> Maybe String
-> WithContext
-> DiffAlgorithm
-> Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> a)
revertOpts
}
where
revertBasicOpts :: OptSpec
DarcsOptDescr
DarcsFlag
a
(Maybe Bool -> Maybe String -> WithContext -> DiffAlgorithm -> a)
revertBasicOpts
= PrimOptSpec
DarcsOptDescr
DarcsFlag
(Maybe String -> WithContext -> DiffAlgorithm -> a)
(Maybe Bool)
PrimDarcsOption (Maybe Bool)
O.interactive
PrimOptSpec
DarcsOptDescr
DarcsFlag
(Maybe String -> WithContext -> DiffAlgorithm -> a)
(Maybe Bool)
-> OptSpec
DarcsOptDescr
DarcsFlag
(WithContext -> DiffAlgorithm -> a)
(Maybe String -> WithContext -> DiffAlgorithm -> a)
-> OptSpec
DarcsOptDescr
DarcsFlag
(WithContext -> DiffAlgorithm -> a)
(Maybe Bool -> Maybe String -> WithContext -> DiffAlgorithm -> a)
forall (d :: * -> *) f b c a.
OptSpec d f b c -> OptSpec d f a b -> OptSpec d f a c
^ OptSpec
DarcsOptDescr
DarcsFlag
(WithContext -> DiffAlgorithm -> a)
(Maybe String -> WithContext -> DiffAlgorithm -> a)
PrimDarcsOption (Maybe String)
O.repoDir
OptSpec
DarcsOptDescr
DarcsFlag
(WithContext -> DiffAlgorithm -> a)
(Maybe Bool -> Maybe String -> WithContext -> DiffAlgorithm -> a)
-> OptSpec
DarcsOptDescr
DarcsFlag
(DiffAlgorithm -> a)
(WithContext -> DiffAlgorithm -> a)
-> OptSpec
DarcsOptDescr
DarcsFlag
(DiffAlgorithm -> a)
(Maybe Bool -> Maybe String -> WithContext -> DiffAlgorithm -> a)
forall (d :: * -> *) f b c a.
OptSpec d f b c -> OptSpec d f a b -> OptSpec d f a c
^ OptSpec
DarcsOptDescr
DarcsFlag
(DiffAlgorithm -> a)
(WithContext -> DiffAlgorithm -> a)
PrimDarcsOption WithContext
O.withContext
OptSpec
DarcsOptDescr
DarcsFlag
(DiffAlgorithm -> a)
(Maybe Bool -> Maybe String -> WithContext -> DiffAlgorithm -> a)
-> OptSpec DarcsOptDescr DarcsFlag a (DiffAlgorithm -> a)
-> OptSpec
DarcsOptDescr
DarcsFlag
a
(Maybe Bool -> Maybe String -> WithContext -> DiffAlgorithm -> a)
forall (d :: * -> *) f b c a.
OptSpec d f b c -> OptSpec d f a b -> OptSpec d f a c
^ OptSpec DarcsOptDescr DarcsFlag a (DiffAlgorithm -> a)
PrimDarcsOption DiffAlgorithm
O.diffAlgorithm
revertAdvancedOpts :: OptSpec DarcsOptDescr DarcsFlag a (UseIndex -> UMask -> a)
revertAdvancedOpts = PrimOptSpec DarcsOptDescr DarcsFlag (UMask -> a) UseIndex
PrimDarcsOption UseIndex
O.useIndex PrimOptSpec DarcsOptDescr DarcsFlag (UMask -> a) UseIndex
-> OptSpec DarcsOptDescr DarcsFlag a (UMask -> a)
-> OptSpec DarcsOptDescr DarcsFlag a (UseIndex -> UMask -> a)
forall (d :: * -> *) f b c a.
OptSpec d f b c -> OptSpec d f a b -> OptSpec d f a c
^ OptSpec DarcsOptDescr DarcsFlag a (UMask -> a)
PrimDarcsOption UMask
O.umask
revertOpts :: DarcsOption
a
(Maybe Bool
-> Maybe String
-> WithContext
-> DiffAlgorithm
-> Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> a)
revertOpts = OptSpec
DarcsOptDescr
DarcsFlag
(Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> a)
(Maybe Bool
-> Maybe String
-> WithContext
-> DiffAlgorithm
-> Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> a)
forall a.
OptSpec
DarcsOptDescr
DarcsFlag
a
(Maybe Bool -> Maybe String -> WithContext -> DiffAlgorithm -> a)
revertBasicOpts OptSpec
DarcsOptDescr
DarcsFlag
(Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> a)
(Maybe Bool
-> Maybe String
-> WithContext
-> DiffAlgorithm
-> Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> a)
-> DarcsOption
(UseCache -> HooksConfig -> a)
(UseIndex -> UMask -> UseCache -> HooksConfig -> a)
-> DarcsOption
a
(Maybe Bool
-> Maybe String
-> WithContext
-> DiffAlgorithm
-> Maybe StdCmdAction
-> Bool
-> Bool
-> Verbosity
-> Bool
-> UseIndex
-> UMask
-> UseCache
-> HooksConfig
-> a)
forall b c a.
DarcsOption
(Maybe StdCmdAction -> Bool -> Bool -> Verbosity -> Bool -> b) c
-> DarcsOption (UseCache -> HooksConfig -> a) b -> DarcsOption a c
`withStdOpts` DarcsOption
(UseCache -> HooksConfig -> a)
(UseIndex -> UMask -> UseCache -> HooksConfig -> a)
forall a.
OptSpec DarcsOptDescr DarcsFlag a (UseIndex -> UMask -> a)
revertAdvancedOpts
revertCmd :: (AbsolutePath, AbsolutePath) -> [DarcsFlag] -> [String] -> IO ()
revertCmd :: (AbsolutePath, AbsolutePath) -> [DarcsFlag] -> [String] -> IO ()
revertCmd fps :: (AbsolutePath, AbsolutePath)
fps opts :: [DarcsFlag]
opts args :: [String]
args =
DryRun -> UseCache -> UpdateWorking -> UMask -> RepoJob () -> IO ()
forall a.
DryRun -> UseCache -> UpdateWorking -> UMask -> RepoJob a -> IO a
withRepoLock (PrimDarcsOption DryRun
dryRun PrimDarcsOption DryRun -> [DarcsFlag] -> DryRun
forall (d :: * -> *) f v.
(forall a. PrimOptSpec d f a v) -> [f] -> v
? [DarcsFlag]
opts) (PrimDarcsOption UseCache
useCache PrimDarcsOption UseCache -> [DarcsFlag] -> UseCache
forall (d :: * -> *) f v.
(forall a. PrimOptSpec d f a v) -> [f] -> v
? [DarcsFlag]
opts) UpdateWorking
YesUpdateWorking (PrimDarcsOption UMask
umask PrimDarcsOption UMask -> [DarcsFlag] -> UMask
forall (d :: * -> *) f v.
(forall a. PrimOptSpec d f a v) -> [f] -> v
? [DarcsFlag]
opts) (RepoJob () -> IO ()) -> RepoJob () -> IO ()
forall a b. (a -> b) -> a -> b
$ (forall (rt :: RepoType) (p :: * -> * -> *) wR wU.
(IsRepoType rt, RepoPatch p, ApplyState p ~ Tree) =>
Repository rt p wR wU wR -> IO ())
-> RepoJob ()
forall a.
(forall (rt :: RepoType) (p :: * -> * -> *) wR wU.
(IsRepoType rt, RepoPatch p, ApplyState p ~ Tree) =>
Repository rt p wR wU wR -> IO a)
-> RepoJob a
RepoJob ((forall (rt :: RepoType) (p :: * -> * -> *) wR wU.
(IsRepoType rt, RepoPatch p, ApplyState p ~ Tree) =>
Repository rt p wR wU wR -> IO ())
-> RepoJob ())
-> (forall (rt :: RepoType) (p :: * -> * -> *) wR wU.
(IsRepoType rt, RepoPatch p, ApplyState p ~ Tree) =>
Repository rt p wR wU wR -> IO ())
-> RepoJob ()
forall a b. (a -> b) -> a -> b
$ \repository :: Repository rt p wR wU wR
repository -> do
Maybe [SubPath]
files <- if [String] -> Bool
forall (t :: * -> *) a. Foldable t => t a -> Bool
null [String]
args then Maybe [SubPath] -> IO (Maybe [SubPath])
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe [SubPath]
forall a. Maybe a
Nothing
else [SubPath] -> Maybe [SubPath]
forall a. a -> Maybe a
Just ([SubPath] -> Maybe [SubPath])
-> ([SubPath] -> [SubPath]) -> [SubPath] -> Maybe [SubPath]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. [SubPath] -> [SubPath]
forall a. Ord a => [a] -> [a]
sort ([SubPath] -> Maybe [SubPath])
-> IO [SubPath] -> IO (Maybe [SubPath])
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (AbsolutePath, AbsolutePath) -> [String] -> IO [SubPath]
fixSubPaths (AbsolutePath, AbsolutePath)
fps [String]
args
Verbosity -> Maybe [SubPath] -> String -> IO ()
announceFiles (PrimDarcsOption Verbosity
verbosity PrimDarcsOption Verbosity -> [DarcsFlag] -> Verbosity
forall (d :: * -> *) f v.
(forall a. PrimOptSpec d f a v) -> [f] -> v
? [DarcsFlag]
opts) Maybe [SubPath]
files "Reverting changes in"
FL (PrimOf p) wR wU
changes <- (UseIndex, ScanKnown, DiffAlgorithm)
-> LookForMoves
-> LookForReplaces
-> Repository rt p wR wU wR
-> Maybe [SubPath]
-> IO (FL (PrimOf p) wR wU)
forall (p :: * -> * -> *) (rt :: RepoType) wR wU wT.
(RepoPatch p, ApplyState p ~ Tree) =>
(UseIndex, ScanKnown, DiffAlgorithm)
-> LookForMoves
-> LookForReplaces
-> Repository rt p wR wU wT
-> Maybe [SubPath]
-> IO (FL (PrimOf p) wT wU)
unrecordedChanges ([DarcsFlag] -> (UseIndex, ScanKnown, DiffAlgorithm)
diffingOpts [DarcsFlag]
opts )
LookForMoves
O.NoLookForMoves LookForReplaces
O.NoLookForReplaces Repository rt p wR wU wR
repository Maybe [SubPath]
files
let pre_changed_files :: Maybe [String]
pre_changed_files = FL (PrimOf p) wU wR -> [String] -> [String]
forall (p :: * -> * -> *) wX wY.
(Apply p, ApplyState p ~ Tree) =>
p wX wY -> [String] -> [String]
effectOnFilePaths (FL (PrimOf p) wR wU -> FL (PrimOf p) wU wR
forall (p :: * -> * -> *) wX wY. Invert p => p wX wY -> p wY wX
invert FL (PrimOf p) wR wU
changes) ([String] -> [String])
-> ([SubPath] -> [String]) -> [SubPath] -> [String]
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (SubPath -> String) -> [SubPath] -> [String]
forall a b. (a -> b) -> [a] -> [b]
map SubPath -> String
forall a. FilePathLike a => a -> String
toFilePath ([SubPath] -> [String]) -> Maybe [SubPath] -> Maybe [String]
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Maybe [SubPath]
files
Tree IO
recorded <- Repository rt p wR wU wR -> IO (Tree IO)
forall (rt :: RepoType) (p :: * -> * -> *) wR wU wT.
Repository rt p wR wU wT -> IO (Tree IO)
readRecorded Repository rt p wR wU wR
repository
Sealed touching_changes :: FL (PrimOf p) wR wX
touching_changes <- Sealed (FL (PrimOf p) wR) -> IO (Sealed (FL (PrimOf p) wR))
forall (m :: * -> *) a. Monad m => a -> m a
return (Maybe [String] -> FL (PrimOf p) wR wU -> Sealed (FL (PrimOf p) wR)
forall (p :: * -> * -> *) wX wY.
(Apply p, Commute p, PatchInspect p, ApplyState p ~ Tree) =>
Maybe [String] -> FL p wX wY -> Sealed (FL p wX)
chooseTouching Maybe [String]
pre_changed_files FL (PrimOf p) wR wU
changes)
case FL (PrimOf p) wR wX
touching_changes of
NilFL -> [DarcsFlag] -> Doc -> IO ()
putInfo [DarcsFlag]
opts "There are no changes to revert!"
_ -> do
let context :: PatchSelectionContext (PrimOf p)
context = WhichChanges
-> String
-> PatchSelectionOptions
-> Maybe (Splitter (PrimOf p))
-> Maybe [String]
-> Maybe (Tree IO)
-> PatchSelectionContext (PrimOf p)
forall (prim :: * -> * -> *).
WhichChanges
-> String
-> PatchSelectionOptions
-> Maybe (Splitter prim)
-> Maybe [String]
-> Maybe (Tree IO)
-> PatchSelectionContext prim
selectionContextPrim
WhichChanges
Last "revert" ([DarcsFlag] -> PatchSelectionOptions
patchSelOpts [DarcsFlag]
opts)
(Splitter (PrimOf p) -> Maybe (Splitter (PrimOf p))
forall a. a -> Maybe a
Just (DiffAlgorithm -> Splitter (PrimOf p)
forall (prim :: * -> * -> *).
PrimPatch prim =>
DiffAlgorithm -> Splitter prim
reversePrimSplitter (PrimDarcsOption DiffAlgorithm
diffAlgorithm PrimDarcsOption DiffAlgorithm -> [DarcsFlag] -> DiffAlgorithm
forall (d :: * -> *) f v.
(forall a. PrimOptSpec d f a v) -> [f] -> v
? [DarcsFlag]
opts)))
Maybe [String]
pre_changed_files (Tree IO -> Maybe (Tree IO)
forall a. a -> Maybe a
Just Tree IO
recorded)
(norevert :: FL (PrimOf p) wR wZ
norevert:>p :: FL (PrimOf p) wZ wU
p) <- FL (PrimOf p) wR wU
-> PatchSelectionContext (PrimOf p)
-> IO ((:>) (FL (PrimOf p)) (FL (PrimOf p)) wR wU)
forall (p :: * -> * -> *) wX wY.
(Invert p, Commute p, Apply p, PatchInspect p, ShowPatch p,
ShowContextPatch p, ApplyState p ~ Tree) =>
FL p wX wY
-> PatchSelectionContext p -> IO ((:>) (FL p) (FL p) wX wY)
runSelection FL (PrimOf p) wR wU
changes PatchSelectionContext (PrimOf p)
context
if FL (PrimOf p) wZ wU -> Bool
forall (a :: * -> * -> *) wX wZ. FL a wX wZ -> Bool
nullFL FL (PrimOf p) wZ wU
p
then [DarcsFlag] -> Doc -> IO ()
putInfo [DarcsFlag]
opts (Doc -> IO ()) -> Doc -> IO ()
forall a b. (a -> b) -> a -> b
$ "If you don't want to revert after all, that's fine with me!"
else do
Repository rt p wR wU wR
-> UpdateWorking -> FL (PrimOf p) wU wZ -> IO ()
forall (p :: * -> * -> *) (rt :: RepoType) wR wU wT wY.
(RepoPatch p, ApplyState p ~ Tree) =>
Repository rt p wR wU wT
-> UpdateWorking -> FL (PrimOf p) wU wY -> IO ()
addToPending Repository rt p wR wU wR
repository UpdateWorking
YesUpdateWorking (FL (PrimOf p) wU wZ -> IO ()) -> FL (PrimOf p) wU wZ -> IO ()
forall a b. (a -> b) -> a -> b
$ FL (PrimOf p) wZ wU -> FL (PrimOf p) wU wZ
forall (p :: * -> * -> *) wX wY. Invert p => p wX wY -> p wY wX
invert FL (PrimOf p) wZ wU
p
String -> IO ()
debugMessage "About to write the unrevert file."
case (:>) (FL (PrimOf p)) (FL (PrimOf p)) wR wU
-> Maybe ((:>) (FL (PrimOf p)) (FL (PrimOf p)) wR wU)
forall (p :: * -> * -> *) wX wY.
Commute p =>
(:>) p p wX wY -> Maybe ((:>) p p wX wY)
commute (FL (PrimOf p) wR wZ
norevertFL (PrimOf p) wR wZ
-> FL (PrimOf p) wZ wU
-> (:>) (FL (PrimOf p)) (FL (PrimOf p)) wR wU
forall (a1 :: * -> * -> *) (a2 :: * -> * -> *) wX wY wZ.
a1 wX wZ -> a2 wZ wY -> (:>) a1 a2 wX wY
:>FL (PrimOf p) wZ wU
p) of
Just (p' :: FL (PrimOf p) wR wZ
p':>_) -> Repository rt p wR wU wR
-> FL (PrimOf p) wR wZ -> Tree IO -> FL (PrimOf p) wR wR -> IO ()
forall (rt :: RepoType) (p :: * -> * -> *) wR wU wT wX wY.
(IsRepoType rt, RepoPatch p, ApplyState p ~ Tree) =>
Repository rt p wR wU wT
-> FL (PrimOf p) wX wY -> Tree IO -> FL (PrimOf p) wR wX -> IO ()
writeUnrevert Repository rt p wR wU wR
repository FL (PrimOf p) wR wZ
p' Tree IO
recorded FL (PrimOf p) wR wR
forall (a :: * -> * -> *) wX. FL a wX wX
NilFL
Nothing -> Repository rt p wR wU wR
-> FL (PrimOf p) wR wU -> Tree IO -> FL (PrimOf p) wR wR -> IO ()
forall (rt :: RepoType) (p :: * -> * -> *) wR wU wT wX wY.
(IsRepoType rt, RepoPatch p, ApplyState p ~ Tree) =>
Repository rt p wR wU wT
-> FL (PrimOf p) wX wY -> Tree IO -> FL (PrimOf p) wR wX -> IO ()
writeUnrevert Repository rt p wR wU wR
repository (FL (PrimOf p) wR wZ
norevertFL (PrimOf p) wR wZ -> FL (PrimOf p) wZ wU -> FL (PrimOf p) wR wU
forall (a :: * -> * -> *) wX wY wZ.
FL a wX wY -> FL a wY wZ -> FL a wX wZ
+>+FL (PrimOf p) wZ wU
p) Tree IO
recorded FL (PrimOf p) wR wR
forall (a :: * -> * -> *) wX. FL a wX wX
NilFL
String -> IO ()
debugMessage "About to apply to the working directory."
Repository rt p wR wZ wR
_ <- Repository rt p wR wU wR
-> Verbosity
-> FL (PrimOf p) wU wZ
-> IO (Repository rt p wR wZ wR)
forall (p :: * -> * -> *) (rt :: RepoType) wR wU wT wY.
(ApplyState p ~ Tree, RepoPatch p) =>
Repository rt p wR wU wT
-> Verbosity
-> FL (PrimOf p) wU wY
-> IO (Repository rt p wR wY wT)
applyToWorking Repository rt p wR wU wR
repository (PrimDarcsOption Verbosity
verbosity PrimDarcsOption Verbosity -> [DarcsFlag] -> Verbosity
forall (d :: * -> *) f v.
(forall a. PrimOptSpec d f a v) -> [f] -> v
? [DarcsFlag]
opts) (FL (PrimOf p) wZ wU -> FL (PrimOf p) wU wZ
forall (p :: * -> * -> *) wX wY. Invert p => p wX wY -> p wY wX
invert FL (PrimOf p) wZ wU
p) IO (Repository rt p wR wZ wR)
-> (IOException -> IO (Repository rt p wR wZ wR))
-> IO (Repository rt p wR wZ wR)
forall e a. Exception e => IO a -> (e -> IO a) -> IO a
`catch` \(IOException
e :: IOException) ->
String -> IO (Repository rt p wR wZ wR)
forall (m :: * -> *) a. MonadFail m => String -> m a
fail ("Unable to apply inverse patch!" String -> String -> String
forall a. [a] -> [a] -> [a]
++ IOException -> String
forall a. Show a => a -> String
show IOException
e)
() -> IO ()
forall (m :: * -> *) a. Monad m => a -> m a
return ()
[DarcsFlag] -> Doc -> IO ()
putInfo [DarcsFlag]
opts "Finished reverting."