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Ignore !${OUTPUT} at end of derivation paths #66

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merged 1 commit into from Dec 28, 2022
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4 changes: 3 additions & 1 deletion src/Diff.hs
Expand Up @@ -27,6 +27,7 @@ import Nix.Derivation (Derivation, DerivationOutput)
import qualified Control.Monad.Reader
import qualified Data.Attoparsec.Text
import qualified Data.Char as Char
import qualified Data.List as List
import qualified Data.List.NonEmpty
import qualified Data.Map
import qualified Data.Set
Expand Down Expand Up @@ -233,7 +234,8 @@ readDerivation path = do
-- (.drv) or a realized path, in which case the corresponding derivation is
-- queried.
readInput :: FilePath -> Diff (Derivation FilePath Text)
readInput path =
readInput pathAndMaybeOutput = do
let (path, _) = List.break (== '!') pathAndMaybeOutput
if FilePath.isExtensionOf ".drv" path
then readDerivation path
else do
Expand Down