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Allow specifying path to sources.json in executable
The CLI was updated to allow for custom locations of the `nix/sources.json`: ``` Usage: niv [-s|--sources-json FILE] COMMAND Available options: -s,--sources-json FILE Use FILE instead of nix/sources.json -h,--help Show this help text ```
This commit is contained in:
Nicolas Mattia
parent
3e1d44bbfa
commit
ceab2e1572
@ -201,9 +201,10 @@ niv - dependency manager for Nix projects
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version: 0.2.6
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Usage: niv COMMAND
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Usage: niv [-s|--sources-json FILE] COMMAND
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Available options:
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-s,--sources-json FILE Use FILE instead of nix/sources.json
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-h,--help Show this help text
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Available commands:
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@ -3,6 +3,7 @@
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module Data.Text.Extended where
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import Niv.Logger
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import UnliftIO
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import System.Exit (exitFailure)
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import qualified Data.Text as T
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@ -10,7 +11,7 @@ tshow :: Show a => a -> T.Text
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tshow = T.pack . show
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-- not quite the perfect place for this
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abort :: T.Text -> IO a
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abort :: MonadIO io => T.Text -> io a
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abort msg = do
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tsay $ T.unwords [ tbold $ tred "FATAL:", msg ]
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exitFailure
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liftIO exitFailure
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147
src/Niv/Cli.hs
147
src/Niv/Cli.hs
@ -1,4 +1,5 @@
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{-# LANGUAGE DerivingStrategies #-}
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{-# LANGUAGE DeriveFunctor #-}
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{-# LANGUAGE GeneralizedNewtypeDeriving #-}
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{-# LANGUAGE LambdaCase #-}
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{-# LANGUAGE OverloadedStrings #-}
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@ -10,11 +11,11 @@ module Niv.Cli where
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import Control.Applicative
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import Control.Monad
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import Control.Monad.Reader
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import Data.Aeson ((.=))
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import Data.Char (isSpace)
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import Data.HashMap.Strict.Extended
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import Data.Hashable (Hashable)
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import Data.String.QQ (s)
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import Data.Text.Extended
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import Data.Version (showVersion)
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import Niv.Cmd
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@ -38,15 +39,28 @@ import qualified System.Directory as Dir
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-- I died a little
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import Paths_niv (version)
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newtype NIO a = NIO { runNIO :: ReaderT FindSourcesJson IO a }
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deriving (Functor, Applicative, Monad, MonadIO, MonadReader FindSourcesJson)
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instance MonadUnliftIO NIO where
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withRunInIO = wrappedWithRunInIO NIO runNIO
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getFindSourcesJson :: NIO FindSourcesJson
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getFindSourcesJson = ask
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li :: MonadIO io => IO a -> io a
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li = liftIO
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cli :: IO ()
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cli = join $
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execParserPure' Opts.defaultPrefs opts <$> getArgs
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cli = do
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(fsj, nio) <- execParserPure' Opts.defaultPrefs opts <$> getArgs
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>>= Opts.handleParseResult
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runReaderT (runNIO nio) fsj
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where
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execParserPure' pprefs pinfo [] = Opts.Failure $
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Opts.parserFailure pprefs pinfo Opts.ShowHelpText mempty
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execParserPure' pprefs pinfo args = Opts.execParserPure pprefs pinfo args
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opts = Opts.info (parseCommand <**> Opts.helper ) $ mconcat desc
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opts = Opts.info ((,) <$> parseFindSourcesJson <*> (parseCommand <**> Opts.helper)) $ mconcat desc
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desc =
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[ Opts.fullDesc
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, Opts.headerDoc $ Just $
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@ -54,8 +68,16 @@ cli = join $
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"" Opts.<$$>
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"version:" Opts.<+> Opts.text (showVersion version)
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]
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parseFindSourcesJson =
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AtPath <$> Opts.strOption (
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Opts.long "sources-json" <>
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Opts.short 's' <>
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Opts.metavar "FILE" <>
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Opts.help "Use FILE instead of nix/sources.json"
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) <|> pure Auto
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parseCommand :: Opts.Parser (IO ())
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parseCommand :: Opts.Parser (NIO ())
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parseCommand = Opts.subparser (
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Opts.command "init" parseCmdInit <>
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Opts.command "add" parseCmdAdd <>
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@ -75,7 +97,7 @@ parsePackage = (,) <$> parsePackageName <*> (parsePackageSpec githubCmd)
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-- INIT
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-------------------------------------------------------------------------------
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parseCmdInit :: Opts.ParserInfo (IO ())
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parseCmdInit :: Opts.ParserInfo (NIO ())
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parseCmdInit = Opts.info (pure cmdInit <**> Opts.helper) $ mconcat desc
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where
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desc =
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@ -84,9 +106,10 @@ parseCmdInit = Opts.info (pure cmdInit <**> Opts.helper) $ mconcat desc
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"Initialize a Nix project. Existing files won't be modified."
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]
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cmdInit :: IO ()
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cmdInit :: NIO ()
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cmdInit = do
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job "Initializing" $ do
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fsj <- getFindSourcesJson
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-- Writes all the default files
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-- a path, a "create" function and an update function for each file.
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@ -97,10 +120,10 @@ cmdInit = do
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if shouldUpdateNixSourcesNix content
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then do
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say "Updating sources.nix"
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B.writeFile path initNixSourcesNixContent
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liftIO $ B.writeFile path initNixSourcesNixContent
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else say "Not updating sources.nix"
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)
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, ( pathNixSourcesJson
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, ( pathNixSourcesJson fsj
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, \path -> do
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createFile path initNixSourcesJsonContent
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-- Imports @niv@ and @nixpkgs@ (19.03)
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@ -121,23 +144,23 @@ cmdInit = do
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)
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, \path _content -> dontCreateFile path)
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] $ \(path, onCreate, onUpdate) -> do
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exists <- Dir.doesFileExist path
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if exists then B.readFile path >>= onUpdate path else onCreate path
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exists <- liftIO $ Dir.doesFileExist path
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if exists then liftIO (B.readFile path) >>= onUpdate path else onCreate path
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where
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createFile :: FilePath -> B.ByteString -> IO ()
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createFile path content = do
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createFile :: FilePath -> B.ByteString -> NIO ()
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createFile path content = liftIO $ do
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let dir = takeDirectory path
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Dir.createDirectoryIfMissing True dir
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say $ "Creating " <> path
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B.writeFile path content
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dontCreateFile :: FilePath -> IO ()
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dontCreateFile :: FilePath -> NIO ()
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dontCreateFile path = say $ "Not creating " <> path
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-------------------------------------------------------------------------------
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-- ADD
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-------------------------------------------------------------------------------
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parseCmdAdd :: Opts.ParserInfo (IO ())
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parseCmdAdd :: Opts.ParserInfo (NIO ())
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parseCmdAdd =
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Opts.info
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((parseCommands <|> parseShortcuts) <**> Opts.helper) $
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@ -208,48 +231,51 @@ parseCmdArgs cmd = collapse <$> parseNameAndShortcut <*> parsePackageSpec cmd
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Opts.help "Set the package name to <NAME>"
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)
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cmdAdd :: Update () a -> PackageName -> Attrs -> IO ()
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cmdAdd :: Update () a -> PackageName -> Attrs -> NIO ()
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cmdAdd updateFunc packageName attrs = do
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job ("Adding package " <> T.unpack (unPackageName packageName)) $ do
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sources <- unSources <$> getSources
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fsj <- getFindSourcesJson
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sources <- unSources <$> liftIO (getSources fsj)
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when (HMS.member packageName sources) $
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abortCannotAddPackageExists packageName
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li $ abortCannotAddPackageExists packageName
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eFinalSpec <- fmap attrsToSpec <$> tryEvalUpdate attrs updateFunc
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eFinalSpec <- fmap attrsToSpec <$> li (tryEvalUpdate attrs updateFunc)
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case eFinalSpec of
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Left e -> abortUpdateFailed [(packageName, e)]
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Left e -> li (abortUpdateFailed [(packageName, e)])
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Right finalSpec -> do
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say $ "Writing new sources file"
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setSources $ Sources $
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li $ setSources fsj $ Sources $
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HMS.insert packageName finalSpec sources
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-------------------------------------------------------------------------------
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-- SHOW
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-------------------------------------------------------------------------------
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parseCmdShow :: Opts.ParserInfo (IO ())
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parseCmdShow :: Opts.ParserInfo (NIO ())
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parseCmdShow =
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Opts.info
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((cmdShow <$> Opts.optional parsePackageName) <**> Opts.helper)
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Opts.fullDesc
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-- TODO: nicer output
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cmdShow :: Maybe PackageName -> IO ()
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cmdShow :: Maybe PackageName -> NIO ()
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cmdShow = \case
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Just packageName -> do
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sources <- unSources <$> getSources
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fsj <- getFindSourcesJson
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sources <- unSources <$> li (getSources fsj)
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case HMS.lookup packageName sources of
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Just pspec -> showPackage packageName pspec
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Nothing -> abortCannotShowNoSuchPackage packageName
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Nothing -> li $ abortCannotShowNoSuchPackage packageName
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Nothing -> do
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sources <- unSources <$> getSources
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fsj <- getFindSourcesJson
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sources <- unSources <$> li (getSources fsj)
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forWithKeyM_ sources $ showPackage
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showPackage :: PackageName -> PackageSpec -> IO ()
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showPackage :: MonadIO io => PackageName -> PackageSpec -> io ()
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showPackage (PackageName pname) (PackageSpec spec) = do
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tsay $ tbold pname
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forM_ (HMS.toList spec) $ \(attrName, attrValValue) -> do
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@ -262,7 +288,7 @@ showPackage (PackageName pname) (PackageSpec spec) = do
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-- UPDATE
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-------------------------------------------------------------------------------
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parseCmdUpdate :: Opts.ParserInfo (IO ())
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parseCmdUpdate :: Opts.ParserInfo (NIO ())
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parseCmdUpdate =
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Opts.info
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((cmdUpdate <$> Opts.optional parsePackage) <**> Opts.helper) $
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@ -287,11 +313,12 @@ specToFreeAttrs = fmap (Free,) . unPackageSpec
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specToLockedAttrs :: PackageSpec -> Attrs
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specToLockedAttrs = fmap (Locked,) . unPackageSpec
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cmdUpdate :: Maybe (PackageName, PackageSpec) -> IO ()
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cmdUpdate :: Maybe (PackageName, PackageSpec) -> NIO ()
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cmdUpdate = \case
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Just (packageName, cliSpec) ->
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job ("Update " <> T.unpack (unPackageName packageName)) $ do
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sources <- unSources <$> getSources
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fsj <- getFindSourcesJson
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sources <- unSources <$> li (getSources fsj)
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eFinalSpec <- case HMS.lookup packageName sources of
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Just defaultSpec -> do
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@ -300,20 +327,21 @@ cmdUpdate = \case
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let cmd = case HMS.lookup "type" (unPackageSpec defaultSpec) of
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Just "git" -> gitCmd
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_ -> githubCmd
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fmap attrsToSpec <$> tryEvalUpdate
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fmap attrsToSpec <$> li (tryEvalUpdate
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(specToLockedAttrs cliSpec <> specToFreeAttrs defaultSpec)
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(updateCmd cmd)
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(updateCmd cmd))
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Nothing -> abortCannotUpdateNoSuchPackage packageName
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Nothing -> li $ abortCannotUpdateNoSuchPackage packageName
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case eFinalSpec of
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Left e -> abortUpdateFailed [(packageName, e)]
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Left e -> li $ abortUpdateFailed [(packageName, e)]
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Right finalSpec ->
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setSources $ Sources $
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li $ setSources fsj $ Sources $
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HMS.insert packageName finalSpec sources
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Nothing -> job "Updating all packages" $ do
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sources <- unSources <$> getSources
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fsj <- getFindSourcesJson
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sources <- unSources <$> li (getSources fsj)
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esources' <- forWithKeyM sources $
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\packageName defaultSpec -> do
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@ -324,17 +352,17 @@ cmdUpdate = \case
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let cmd = case HMS.lookup "type" (unPackageSpec defaultSpec) of
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Just "git" -> gitCmd
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_ -> githubCmd
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finalSpec <- fmap attrsToSpec <$> tryEvalUpdate
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finalSpec <- fmap attrsToSpec <$> li (tryEvalUpdate
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initialSpec
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(updateCmd cmd)
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(updateCmd cmd))
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pure finalSpec
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let (failed, sources') = partitionEithersHMS esources'
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unless (HMS.null failed) $
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abortUpdateFailed (HMS.toList failed)
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li $ abortUpdateFailed (HMS.toList failed)
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setSources $ Sources sources'
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li $ setSources fsj $ Sources sources'
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partitionEithersHMS
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:: (Eq k, Hashable k)
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@ -348,7 +376,7 @@ partitionEithersHMS =
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-- MODIFY
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-------------------------------------------------------------------------------
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parseCmdModify :: Opts.ParserInfo (IO ())
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parseCmdModify :: Opts.ParserInfo (NIO ())
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parseCmdModify =
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Opts.info
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((cmdModify <$> parsePackage) <**> Opts.helper) $
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@ -364,22 +392,23 @@ parseCmdModify =
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" niv modify nixpkgs -a branch=nixpkgs-unstable"
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]
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cmdModify :: (PackageName, PackageSpec) -> IO ()
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cmdModify :: (PackageName, PackageSpec) -> NIO ()
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cmdModify (packageName, cliSpec) = do
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tsay $ "Modifying package: " <> unPackageName packageName
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sources <- unSources <$> getSources
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fsj <- getFindSourcesJson
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sources <- unSources <$> li (getSources fsj)
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finalSpec <- case HMS.lookup packageName sources of
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Just defaultSpec -> pure $ attrsToSpec (specToLockedAttrs cliSpec <> specToFreeAttrs defaultSpec)
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Nothing -> abortCannotModifyNoSuchPackage packageName
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Nothing -> li $ abortCannotModifyNoSuchPackage packageName
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setSources $ Sources $ HMS.insert packageName finalSpec sources
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li $ setSources fsj $ Sources $ HMS.insert packageName finalSpec sources
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-------------------------------------------------------------------------------
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-- DROP
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-------------------------------------------------------------------------------
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parseCmdDrop :: Opts.ParserInfo (IO ())
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parseCmdDrop :: Opts.ParserInfo (NIO ())
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parseCmdDrop =
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Opts.info
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((cmdDrop <$> parsePackageName <*> parseDropAttributes) <**>
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@ -399,30 +428,32 @@ parseCmdDrop =
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parseDropAttributes = many $
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Opts.argument Opts.str (Opts.metavar "ATTRIBUTE")
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cmdDrop :: PackageName -> [T.Text] -> IO ()
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cmdDrop :: PackageName -> [T.Text] -> NIO ()
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cmdDrop packageName = \case
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[] -> do
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tsay $ "Dropping package: " <> unPackageName packageName
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sources <- unSources <$> getSources
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fsj <- getFindSourcesJson
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sources <- unSources <$> li (getSources fsj)
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when (not $ HMS.member packageName sources) $
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abortCannotDropNoSuchPackage packageName
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li $ abortCannotDropNoSuchPackage packageName
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setSources $ Sources $
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li $ setSources fsj $ Sources $
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HMS.delete packageName sources
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attrs -> do
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tsay $ "Dropping attributes :" <> T.intercalate " " attrs
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tsay $ "In package: " <> unPackageName packageName
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sources <- unSources <$> getSources
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fsj <- getFindSourcesJson
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sources <- unSources <$> li (getSources fsj)
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packageSpec <- case HMS.lookup packageName sources of
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Nothing ->
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abortCannotAttributesDropNoSuchPackage packageName
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li $ abortCannotAttributesDropNoSuchPackage packageName
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Just (PackageSpec packageSpec) -> pure $ PackageSpec $
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HMS.mapMaybeWithKey
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(\k v -> if k `elem` attrs then Nothing else Just v) packageSpec
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setSources $ Sources $
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li $ setSources fsj $ Sources $
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HMS.insert packageName packageSpec sources
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-------------------------------------------------------------------------------
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@ -450,16 +481,6 @@ shouldUpdateNixSourcesNix content =
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-- Abort
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-------------------------------------------------------------------------------
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abortSourcesIsntAMap :: IO a
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abortSourcesIsntAMap = abort $ T.unlines [ line1, line2 ]
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where
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line1 = "Cannot use " <> T.pack pathNixSourcesJson
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line2 = [s|
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The sources file should be a JSON map from package name to package
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specification, e.g.:
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{ ... }
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|]
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abortCannotAddPackageExists :: PackageName -> IO a
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abortCannotAddPackageExists (PackageName n) = abort $ T.unlines
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[ "Cannot add package " <> n <> "."
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@ -29,7 +29,7 @@ type S = String -> String
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type T = T.Text -> T.Text
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-- XXX: this assumes as single thread
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job :: String -> IO () -> IO ()
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job :: (MonadUnliftIO io, MonadIO io) => String -> io () -> io ()
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job str act = do
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say (bold str)
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indent
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@ -41,28 +41,28 @@ job str act = do
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let se = show e
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(if length se > 40 then ":\n" else ": ") <> se
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say $ red "ERROR" <> showErr
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exitFailure
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liftIO exitFailure
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where
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indent = void $ atomicModifyIORef jobStack (\x -> (x + 1, undefined))
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deindent = void $ atomicModifyIORef jobStack (\x -> (x - 1, undefined))
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jobStackSize :: IO Int
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jobStackSize :: MonadIO io => io Int
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jobStackSize = readIORef jobStack
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jobStack :: IORef Int
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jobStack = unsafePerformIO $ newIORef 0
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{-# NOINLINE jobStackSize #-}
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tsay :: T.Text -> IO ()
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tsay :: MonadIO io => T.Text -> io ()
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tsay = say . T.unpack
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say :: String -> IO ()
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say :: MonadIO io => String -> io ()
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say msg = do
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stackSize <- jobStackSize
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let indent = replicate (stackSize * 2) ' '
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-- we use `intercalate "\n"` because `unlines` prints an extra newline at
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-- the end
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putStrLn $ intercalate "\n" $ (indent <>) <$> lines msg
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liftIO $ putStrLn $ intercalate "\n" $ (indent <>) <$> lines msg
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green :: S
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green str =
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@ -31,6 +31,11 @@ import qualified System.Directory as Dir
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-- sources.json related
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-------------------------------------------------------------------------------
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-- | Where to find the sources.json
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data FindSourcesJson
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= Auto -- ^ use the default (nix/sources.json)
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| AtPath FilePath -- ^ use the specified file path
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data SourcesError
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= SourcesDoesntExist
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| SourceIsntJSON
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@ -40,12 +45,12 @@ newtype Sources = Sources
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{ unSources :: HMS.HashMap PackageName PackageSpec }
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deriving newtype (FromJSON, ToJSON)
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||||
getSourcesEither :: IO (Either SourcesError Sources)
|
||||
getSourcesEither = do
|
||||
Dir.doesFileExist pathNixSourcesJson >>= \case
|
||||
getSourcesEither :: FindSourcesJson -> IO (Either SourcesError Sources)
|
||||
getSourcesEither fsj = do
|
||||
Dir.doesFileExist (pathNixSourcesJson fsj) >>= \case
|
||||
False -> pure $ Left SourcesDoesntExist
|
||||
True ->
|
||||
Aeson.decodeFileStrict pathNixSourcesJson >>= \case
|
||||
Aeson.decodeFileStrict (pathNixSourcesJson fsj) >>= \case
|
||||
Just value -> case valueToSources value of
|
||||
Nothing -> pure $ Left SpecIsntAMap
|
||||
Just srcs -> pure $ Right srcs
|
||||
@ -62,18 +67,18 @@ getSourcesEither = do
|
||||
mapKeys :: (Eq k2, Hashable k2) => (k1 -> k2) -> HMS.HashMap k1 v -> HMS.HashMap k2 v
|
||||
mapKeys f = HMS.fromList . map (first f) . HMS.toList
|
||||
|
||||
getSources :: IO Sources
|
||||
getSources = do
|
||||
getSources :: FindSourcesJson -> IO Sources
|
||||
getSources fsj = do
|
||||
warnIfOutdated
|
||||
getSourcesEither >>= either
|
||||
getSourcesEither fsj >>= either
|
||||
(\case
|
||||
SourcesDoesntExist -> abortSourcesDoesntExist
|
||||
SourceIsntJSON -> abortSourcesIsntJSON
|
||||
SpecIsntAMap -> abortSpecIsntAMap
|
||||
SourcesDoesntExist -> (abortSourcesDoesntExist fsj)
|
||||
SourceIsntJSON -> (abortSourcesIsntJSON fsj)
|
||||
SpecIsntAMap -> (abortSpecIsntAMap fsj)
|
||||
) pure
|
||||
|
||||
setSources :: Sources -> IO ()
|
||||
setSources sources = Aeson.encodeFilePretty pathNixSourcesJson sources
|
||||
setSources :: FindSourcesJson -> Sources -> IO ()
|
||||
setSources fsj sources = Aeson.encodeFilePretty (pathNixSourcesJson fsj) sources
|
||||
|
||||
newtype PackageName = PackageName { unPackageName :: T.Text }
|
||||
deriving newtype (Eq, Hashable, FromJSONKey, ToJSONKey, Show)
|
||||
@ -85,32 +90,34 @@ newtype PackageSpec = PackageSpec { unPackageSpec :: Aeson.Object }
|
||||
attrsToSpec :: Attrs -> PackageSpec
|
||||
attrsToSpec = PackageSpec . fmap snd
|
||||
|
||||
-- | @nix/sources.json@
|
||||
pathNixSourcesJson :: FilePath
|
||||
pathNixSourcesJson = "nix" </> "sources.json"
|
||||
-- | @nix/sources.json@ or pointed at by 'FindSourcesJson'
|
||||
pathNixSourcesJson :: FindSourcesJson -> FilePath
|
||||
pathNixSourcesJson = \case
|
||||
Auto -> "nix" </> "sources.json"
|
||||
AtPath f -> f
|
||||
|
||||
--
|
||||
-- ABORT messages
|
||||
--
|
||||
|
||||
abortSourcesDoesntExist :: IO a
|
||||
abortSourcesDoesntExist = abort $ T.unlines [ line1, line2 ]
|
||||
abortSourcesDoesntExist :: FindSourcesJson -> IO a
|
||||
abortSourcesDoesntExist fsj = abort $ T.unlines [ line1, line2 ]
|
||||
where
|
||||
line1 = "Cannot use " <> T.pack pathNixSourcesJson
|
||||
line1 = "Cannot use " <> T.pack (pathNixSourcesJson fsj)
|
||||
line2 = [s|
|
||||
The sources file does not exist! You may need to run 'niv init'.
|
||||
|]
|
||||
|
||||
abortSourcesIsntJSON :: IO a
|
||||
abortSourcesIsntJSON = abort $ T.unlines [ line1, line2 ]
|
||||
abortSourcesIsntJSON :: FindSourcesJson -> IO a
|
||||
abortSourcesIsntJSON fsj = abort $ T.unlines [ line1, line2 ]
|
||||
where
|
||||
line1 = "Cannot use " <> T.pack pathNixSourcesJson
|
||||
line1 = "Cannot use " <> T.pack (pathNixSourcesJson fsj)
|
||||
line2 = "The sources file should be JSON."
|
||||
|
||||
abortSpecIsntAMap :: IO a
|
||||
abortSpecIsntAMap = abort $ T.unlines [ line1, line2 ]
|
||||
abortSpecIsntAMap :: FindSourcesJson -> IO a
|
||||
abortSpecIsntAMap fsj = abort $ T.unlines [ line1, line2 ]
|
||||
where
|
||||
line1 = "Cannot use " <> T.pack pathNixSourcesJson
|
||||
line1 = "Cannot use " <> T.pack (pathNixSourcesJson fsj)
|
||||
line2 = [s|
|
||||
The package specifications in the sources file should be JSON maps from
|
||||
attribute name to attribute value, e.g.:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user