mirror of
https://github.com/simplex-chat/haskell.nix.git
synced 2026-06-03 09:17:32 +00:00
Andrea Bedini
5b7f7f245c
git-subtree-dir: nix-tools git-subtree-mainline:1110a74a9dgit-subtree-split:555d57e1ea
41 lines
1.5 KiB
Haskell
41 lines
1.5 KiB
Haskell
module Stack2nix.CLI
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( Args(..)
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, HpackUse(..)
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, parseStack2nixArgs
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) where
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import Options.Applicative hiding (option)
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import Data.Semigroup ((<>))
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import Cabal2Nix (CabalDetailLevel(..))
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data HpackUse
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= IgnorePackageYaml
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| UsePackageYamlFirst
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deriving Show
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--------------------------------------------------------------------------------
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-- CLI Arguments
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data Args = Args
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{ argOutputDir :: FilePath
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, argStackYaml :: FilePath
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, argHpackUse :: HpackUse
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, argCacheFile :: FilePath
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, argDetailLevel :: CabalDetailLevel
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} deriving Show
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-- Argument Parser
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args :: Parser Args
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args = Args
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<$> strOption ( long "output" <> short 'o' <> metavar "DIR" <> help "Generate output in DIR" )
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<*> strOption ( long "stack-yaml" <> value "stack.yaml" <> showDefault <> metavar "FILE" <> help "Override project stack.yaml" )
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<*> flag UsePackageYamlFirst IgnorePackageYaml (long "ignore-package-yaml" <> help "disable hpack run and use only cabal disregarding package.yaml existence")
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<*> strOption ( long "cache" <> value ".stack-to-nix.cache" <> showDefault <> metavar "FILE" <> help "Dependency cache file" )
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<*> flag MinimalDetails FullDetails ( long "full" <> help "Output details needed to determine what files are used" )
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parseStack2nixArgs :: IO Args
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parseStack2nixArgs = execParser opts
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where opts = info (args <**> helper)
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( fullDesc
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<> progDesc "Generate a Nix expression for a Haskell package using Stack"
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<> header "stack-to-nix - a stack to nix converter" )
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