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33 lines
1.3 KiB
Haskell
33 lines
1.3 KiB
Haskell
module Handler.StackageSdist
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( getStackageSdistR
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) where
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import Import
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import Stackage.Database
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import Handler.Package (packagePage)
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getStackageSdistR :: SnapName -> PackageNameVersion -> Handler TypedContent
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getStackageSdistR _ (PNVTarball name version) = do
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redirect $ concat
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-- unfortunately using insecure HTTP for cabal's sake
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[ "http://hackage.fpcomplete.com/package/"
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, toPathPiece name
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, "-"
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, toPathPiece version
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, ".tar.gz"
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]
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getStackageSdistR sname (PNVName pname) = do
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version <- versionHelper sname pname
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redirect $ SnapshotR sname $ StackageSdistR $ PNVNameVersion pname version
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getStackageSdistR sname (PNVNameVersion pname version) = do
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version' <- versionHelper sname pname
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if version == version'
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then packagePage (Just (sname, version)) pname >>= sendResponse
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else redirect $ SnapshotR sname $ StackageSdistR $ PNVNameVersion pname version'
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versionHelper :: SnapName -> PackageName -> Handler Version
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versionHelper sname pname = do
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Entity sid _ <- lookupSnapshot sname >>= maybe notFound return
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Entity _ sp <- lookupSnapshotPackage sid (toPathPiece pname) >>= maybe notFound return
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maybe notFound return $ fromPathPiece $ snapshotPackageVersion sp
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