enable LambdaCase and convert around 10% of places that could use it
Needs ghc 7.6.1, so minimum base version increased slightly. All builds are well above this version of ghc, and debian oldstable is as well. Code that could use lambdacase can be found by running: git grep -B 1 'case ' | less and searching in less for "<-" This commit was sponsored by andrea rota.
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@ -39,8 +39,7 @@ import Data.Time.Clock.POSIX
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-}
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genMetaData :: Key -> FilePath -> FileStatus -> Annex ()
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genMetaData key file status = do
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v <- catKeyFileHEAD file
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case v of
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catKeyFileHEAD file >>= \case
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Nothing -> noop
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Just oldkey ->
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whenM (copyMetaData oldkey key)
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