585 lines
19 KiB
Haskell
585 lines
19 KiB
Haskell
{-# LANGUAGE CPP #-}
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{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE FlexibleContexts #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE QuasiQuotes #-}
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{-# LANGUAGE TemplateHaskell #-}
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{-# LANGUAGE TypeApplications #-}
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{-# LANGUAGE ViewPatterns #-}
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module BrickMain where
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import GHCup
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import GHCup.Download
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import GHCup.Errors
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import GHCup.Types
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import GHCup.Utils
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import GHCup.Utils.File
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import GHCup.Utils.Logger
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import Brick
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import Brick.Widgets.Border
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import Brick.Widgets.Border.Style
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import Brick.Widgets.Center
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import Brick.Widgets.List ( listSelectedFocusedAttr
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, listSelectedAttr
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, listAttr
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)
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#if !defined(TAR)
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import Codec.Archive
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#endif
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import Control.Exception.Safe
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import Control.Monad.Logger
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import Control.Monad.Reader
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import Control.Monad.Trans.Resource
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import Data.Bool
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import Data.Functor
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import Data.List
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import Data.Maybe
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import Data.IORef
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import Data.String.Interpolate
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import Data.Vector ( Vector
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, (!?)
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)
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import Data.Versions hiding ( str )
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import Haskus.Utils.Variant.Excepts
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import Prelude hiding ( appendFile )
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import System.Exit
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import System.IO.Unsafe
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import URI.ByteString
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import qualified Data.Text as T
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import qualified Graphics.Vty as Vty
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import qualified Data.Vector as V
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data BrickData = BrickData
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{ lr :: [ListResult]
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, dls :: GHCupDownloads
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, pfreq :: PlatformRequest
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}
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deriving Show
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data BrickSettings = BrickSettings
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{ showAll :: Bool
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}
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deriving Show
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data BrickInternalState = BrickInternalState
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{ clr :: Vector ListResult
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, ix :: Int
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}
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deriving Show
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data BrickState = BrickState
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{ appData :: BrickData
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, appSettings :: BrickSettings
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, appState :: BrickInternalState
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, appKeys :: KeyBindings
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}
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deriving Show
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keyHandlers :: KeyBindings
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-> [ ( Vty.Key
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, BrickSettings -> String
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, BrickState -> EventM n (Next BrickState)
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)
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]
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keyHandlers KeyBindings {..} =
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[ (bQuit, const "Quit" , halt)
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, (bInstall, const "Install" , withIOAction install')
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, (bUninstall, const "Uninstall", withIOAction del')
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, (bSet, const "Set" , withIOAction set')
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, (bChangelog, const "ChangeLog", withIOAction changelog')
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, ( bShowAll
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, (\BrickSettings {..} ->
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if showAll then "Hide old versions" else "Show all versions"
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)
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, hideShowHandler
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)
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, (bUp, const "Up", \BrickState {..} -> continue (BrickState { appState = (moveCursor 1 appState Up), .. }))
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, (bDown, const "Down", \BrickState {..} -> continue (BrickState { appState = (moveCursor 1 appState Down), .. }))
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]
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where
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hideShowHandler (BrickState {..}) =
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let newAppSettings = appSettings { showAll = not . showAll $ appSettings }
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newInternalState = constructList appData newAppSettings (Just appState)
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in continue (BrickState appData newAppSettings newInternalState appKeys)
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showKey :: Vty.Key -> String
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showKey (Vty.KChar c) = [c]
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showKey (Vty.KUp) = "↑"
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showKey (Vty.KDown) = "↓"
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showKey key = tail (show key)
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ui :: BrickState -> Widget String
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ui BrickState { appSettings = as@(BrickSettings {}), ..}
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= ( padBottom Max
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$ ( withBorderStyle unicode
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$ borderWithLabel (str "GHCup")
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$ (center $ (header <=> hBorder <=> renderList' appState))
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)
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)
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<=> footer
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where
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footer =
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withAttr "help"
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. txtWrap
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. T.pack
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. foldr1 (\x y -> x <> " " <> y)
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$ (fmap (\(key, s, _) -> (showKey key <> ":" <> s as)) $ keyHandlers appKeys)
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header =
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(minHSize 2 $ emptyWidget)
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<+> (padLeft (Pad 2) $ minHSize 6 $ str "Tool")
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<+> (minHSize 15 $ str "Version")
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<+> (padLeft (Pad 1) $ minHSize 25 $ str "Tags")
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<+> (padLeft (Pad 5) $ str "Notes")
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renderList' = withDefAttr listAttr . drawListElements renderItem True
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renderItem _ b listResult@(ListResult {..}) =
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let marks = if
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| lSet -> (withAttr "set" $ str "✔✔")
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| lInstalled -> (withAttr "installed" $ str "✓ ")
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| otherwise -> (withAttr "not-installed" $ str "✗ ")
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ver = case lCross of
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Nothing -> T.unpack . prettyVer $ lVer
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Just c -> T.unpack (c <> "-" <> prettyVer lVer)
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dim = if lNoBindist
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then updateAttrMap (const dimAttributes) . withAttr "no-bindist"
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else id
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hooray
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| elem Latest lTag && not lInstalled =
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withAttr "hooray"
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| otherwise = id
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active = if b then forceAttr "active" else id
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in hooray $ active $ dim
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( marks
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<+> (( padLeft (Pad 2)
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$ minHSize 6
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$ (printTool lTool)
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)
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)
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<+> (minHSize 15 $ (str ver))
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<+> (let l = catMaybes . fmap printTag $ sort lTag
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in padLeft (Pad 1) $ minHSize 25 $ if null l
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then emptyWidget
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else foldr1 (\x y -> x <+> str "," <+> y) l
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)
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<+> ( padLeft (Pad 5)
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$ let notes = printNotes listResult
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in if null notes
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then emptyWidget
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else foldr1 (\x y -> x <+> str "," <+> y) $ notes
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)
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<+> (vLimit 1 $ fill ' ')
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)
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printTag Recommended = Just $ withAttr "recommended" $ str "recommended"
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printTag Latest = Just $ withAttr "latest" $ str "latest"
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printTag Prerelease = Just $ withAttr "prerelease" $ str "prerelease"
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printTag (Base pvp'') = Just $ str ("base-" ++ T.unpack (prettyPVP pvp''))
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printTag Old = Nothing
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printTag (UnknownTag t) = Just $ str t
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printTool Cabal = str "cabal"
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printTool GHC = str "GHC"
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printTool GHCup = str "GHCup"
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printTool HLS = str "HLS"
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printNotes ListResult {..} =
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(if hlsPowered then [withAttr "hls-powered" $ str "hls-powered"] else mempty
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)
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++ (if fromSrc then [withAttr "compiled" $ str "compiled"] else mempty)
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++ (if lStray then [withAttr "stray" $ str "stray"] else mempty)
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-- | Draws the list elements.
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--
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-- Evaluates the underlying container up to, and a bit beyond, the
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-- selected element. The exact amount depends on available height
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-- for drawing and 'listItemHeight'. At most, it will evaluate up to
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-- element @(i + h + 1)@ where @i@ is the selected index and @h@ is the
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-- available height.
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drawListElements :: (Int -> Bool -> ListResult -> Widget String)
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-> Bool
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-> BrickInternalState
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-> Widget String
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drawListElements drawElem foc is@(BrickInternalState clr _) =
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Widget Greedy Greedy $
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let
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es = clr
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listSelected = fmap fst $ listSelectedElement' is
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drawnElements = flip V.imap es $ \i' e ->
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let addSeparator w = case es !? (i' - 1) of
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Just e' | lTool e' /= lTool e ->
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hBorder <=> w
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_ -> w
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isSelected = Just i' == listSelected
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elemWidget = drawElem i' isSelected e
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selItemAttr = if foc
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then withDefAttr listSelectedFocusedAttr
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else withDefAttr listSelectedAttr
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makeVisible = if isSelected then visible . selItemAttr else id
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in addSeparator $ makeVisible elemWidget
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in render
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$ viewport "GHCup" Vertical
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$ vBox
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$ V.toList drawnElements
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minHSize :: Int -> Widget n -> Widget n
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minHSize s' = hLimit s' . vLimit 1 . (<+> fill ' ')
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app :: App BrickState e String
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app = App { appDraw = \st -> [ui st]
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, appHandleEvent = eventHandler
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, appStartEvent = return
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, appAttrMap = const defaultAttributes
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, appChooseCursor = neverShowCursor
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}
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defaultAttributes :: AttrMap
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defaultAttributes = attrMap
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Vty.defAttr
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[ ("active" , Vty.defAttr `Vty.withBackColor` Vty.blue)
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, ("not-installed", Vty.defAttr `Vty.withForeColor` Vty.red)
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, ("set" , Vty.defAttr `Vty.withForeColor` Vty.green)
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, ("installed" , Vty.defAttr `Vty.withForeColor` Vty.green)
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, ("recommended" , Vty.defAttr `Vty.withForeColor` Vty.green)
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, ("hls-powered" , Vty.defAttr `Vty.withForeColor` Vty.green)
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, ("latest" , Vty.defAttr `Vty.withForeColor` Vty.yellow)
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, ("prerelease" , Vty.defAttr `Vty.withForeColor` Vty.red)
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, ("compiled" , Vty.defAttr `Vty.withForeColor` Vty.blue)
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, ("stray" , Vty.defAttr `Vty.withForeColor` Vty.blue)
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, ("help" , Vty.defAttr `Vty.withStyle` Vty.italic)
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, ("hooray" , Vty.defAttr `Vty.withForeColor` Vty.brightWhite)
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]
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dimAttributes :: AttrMap
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dimAttributes = attrMap
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(Vty.defAttr `Vty.withStyle` Vty.dim)
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[ ("active" , Vty.defAttr `Vty.withBackColor` Vty.blue)
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, ("no-bindist", Vty.defAttr `Vty.withStyle` Vty.dim)
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]
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eventHandler :: BrickState -> BrickEvent n e -> EventM n (Next BrickState)
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eventHandler st@(BrickState {..}) ev = do
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AppState { keyBindings = kb } <- liftIO $ readIORef settings'
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case ev of
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(MouseDown _ Vty.BScrollUp _ _) ->
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continue (BrickState { appState = moveCursor 1 appState Up, .. })
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(MouseDown _ Vty.BScrollDown _ _) ->
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continue (BrickState { appState = moveCursor 1 appState Down, .. })
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(VtyEvent (Vty.EvResize _ _)) -> continue st
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(VtyEvent (Vty.EvKey Vty.KUp _)) ->
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continue (BrickState { appState = (moveCursor 1 appState Up), .. })
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(VtyEvent (Vty.EvKey Vty.KDown _)) ->
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continue (BrickState { appState = (moveCursor 1 appState Down), .. })
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(VtyEvent (Vty.EvKey key _)) ->
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case find (\(key', _, _) -> key' == key) (keyHandlers kb) of
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Nothing -> continue st
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Just (_, _, handler) -> handler st
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_ -> continue st
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moveCursor :: Int -> BrickInternalState -> Direction -> BrickInternalState
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moveCursor steps ais@(BrickInternalState {..}) direction =
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let newIx = if direction == Down then ix + steps else ix - steps
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in case clr !? newIx of
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Just _ -> BrickInternalState { ix = newIx, .. }
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Nothing -> ais
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-- | Suspend the current UI and run an IO action in terminal. If the
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-- IO action returns a Left value, then it's thrown as userError.
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withIOAction :: (BrickState -> (Int, ListResult) -> IO (Either String a))
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-> BrickState
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-> EventM n (Next BrickState)
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withIOAction action as = case listSelectedElement' (appState as) of
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Nothing -> continue as
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Just (ix, e) -> suspendAndResume $ do
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action as (ix, e) >>= \case
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Left err -> putStrLn $ ("Error: " <> err)
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Right _ -> putStrLn "Success"
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getAppData Nothing (pfreq . appData $ as) >>= \case
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Right data' -> do
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putStrLn "Press enter to continue"
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_ <- getLine
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pure (updateList data' as)
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Left err -> throwIO $ userError err
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-- | Update app data and list internal state based on new evidence.
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-- This synchronises @BrickInternalState@ with @BrickData@
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-- and @BrickSettings@.
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updateList :: BrickData -> BrickState -> BrickState
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updateList appD (BrickState {..}) =
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let newInternalState = constructList appD appSettings (Just appState)
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in BrickState { appState = newInternalState
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, appData = appD
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, appSettings = appSettings
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, appKeys = appKeys
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}
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constructList :: BrickData
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-> BrickSettings
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-> Maybe BrickInternalState
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-> BrickInternalState
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constructList appD appSettings mapp =
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replaceLR (filterVisible (showAll appSettings)) (lr appD) mapp
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listSelectedElement' :: BrickInternalState -> Maybe (Int, ListResult)
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listSelectedElement' (BrickInternalState {..}) = fmap (ix, ) $ clr !? ix
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selectLatest :: Vector ListResult -> Int
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selectLatest v =
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case V.findIndex (\ListResult {..} -> lTool == GHC && Latest `elem` lTag) v of
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Just ix -> ix
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Nothing -> 0
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-- | Replace the @appState@ or construct it based on a filter function
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-- and a new @[ListResult]@ evidence.
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-- When passed an existing @appState@, tries to keep the selected element.
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replaceLR :: (ListResult -> Bool)
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-> [ListResult]
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-> Maybe BrickInternalState
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-> BrickInternalState
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replaceLR filterF lr s =
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let oldElem = s >>= listSelectedElement'
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newVec = V.fromList . filter filterF $ lr
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newSelected =
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case oldElem >>= \(_, oldE) -> V.findIndex (toolEqual oldE) newVec of
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Just ix -> ix
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Nothing -> selectLatest newVec
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in BrickInternalState newVec newSelected
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where
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toolEqual e1 e2 =
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lTool e1 == lTool e2 && lVer e1 == lVer e2 && lCross e1 == lCross e2
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filterVisible :: Bool -> ListResult -> Bool
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filterVisible showAll e | lInstalled e = True
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| showAll = True
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| otherwise = not (elem Old (lTag e))
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install' :: BrickState -> (Int, ListResult) -> IO (Either String ())
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install' BrickState { appData = BrickData {..} } (_, ListResult {..}) = do
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settings <- readIORef settings'
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l <- readIORef logger'
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let runLogger = myLoggerT l
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let run =
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runLogger
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. flip runReaderT settings
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. runResourceT
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. runE
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@'[ AlreadyInstalled
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#if !defined(TAR)
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, ArchiveResult
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#endif
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, UnknownArchive
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, FileDoesNotExistError
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, CopyError
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, NoDownload
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, NotInstalled
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, BuildFailed
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, TagNotFound
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, DigestError
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, DownloadFailed
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, NoUpdate
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, TarDirDoesNotExist
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]
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(run $ do
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case lTool of
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GHC -> liftE $ installGHCBin dls lVer pfreq
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Cabal -> liftE $ installCabalBin dls lVer pfreq
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GHCup -> liftE $ upgradeGHCup dls Nothing False pfreq $> ()
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HLS -> liftE $ installHLSBin dls lVer pfreq $> ()
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)
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>>= \case
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VRight _ -> pure $ Right ()
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VLeft (V (AlreadyInstalled _ _)) -> pure $ Right ()
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VLeft (V (BuildFailed _ e)) ->
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pure $ Left [i|Build failed with #{e}|]
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VLeft (V NoDownload) ->
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pure $ Left [i|No available version for #{prettyVer lVer}|]
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VLeft (V NoUpdate) -> pure $ Right ()
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VLeft e -> pure $ Left [i|#{e}
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Also check the logs in ~/.ghcup/logs|]
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set' :: BrickState -> (Int, ListResult) -> IO (Either String ())
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set' _ (_, ListResult {..}) = do
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settings <- readIORef settings'
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l <- readIORef logger'
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let runLogger = myLoggerT l
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let run =
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runLogger
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. flip runReaderT settings
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. runE @'[FileDoesNotExistError , NotInstalled , TagNotFound]
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(run $ do
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case lTool of
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GHC -> liftE $ setGHC (GHCTargetVersion lCross lVer) SetGHCOnly $> ()
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Cabal -> liftE $ setCabal lVer $> ()
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HLS -> liftE $ setHLS lVer $> ()
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GHCup -> pure ()
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)
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>>= \case
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VRight _ -> pure $ Right ()
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VLeft e -> pure $ Left [i|#{e}|]
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del' :: BrickState -> (Int, ListResult) -> IO (Either String ())
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del' _ (_, ListResult {..}) = do
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settings <- readIORef settings'
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l <- readIORef logger'
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let runLogger = myLoggerT l
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let run = runLogger . flip runReaderT settings . runE @'[NotInstalled]
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(run $ do
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case lTool of
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GHC -> liftE $ rmGHCVer (GHCTargetVersion lCross lVer) $> ()
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Cabal -> liftE $ rmCabalVer lVer $> ()
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HLS -> liftE $ rmHLSVer lVer $> ()
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GHCup -> pure ()
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)
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>>= \case
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VRight _ -> pure $ Right ()
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VLeft e -> pure $ Left [i|#{e}|]
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changelog' :: BrickState -> (Int, ListResult) -> IO (Either String ())
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changelog' BrickState { appData = BrickData {..} } (_, ListResult {..}) = do
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case getChangeLog dls lTool (Left lVer) of
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Nothing -> pure $ Left
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[i|Could not find ChangeLog for #{lTool}, version #{prettyVer lVer}|]
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Just uri -> do
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let cmd = case _rPlatform pfreq of
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Darwin -> "open"
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Linux _ -> "xdg-open"
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FreeBSD -> "xdg-open"
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exec cmd True [serializeURIRef' uri] Nothing Nothing >>= \case
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Right _ -> pure $ Right ()
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Left e -> pure $ Left [i|#{e}|]
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uri' :: IORef (Maybe URI)
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{-# NOINLINE uri' #-}
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uri' = unsafePerformIO (newIORef Nothing)
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settings' :: IORef AppState
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{-# NOINLINE settings' #-}
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settings' = unsafePerformIO $ do
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dirs <- getDirs
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newIORef $ AppState (Settings { cache = True
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, noVerify = False
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, keepDirs = Never
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, downloader = Curl
|
|
, verbose = False
|
|
, ..
|
|
})
|
|
dirs
|
|
defaultKeyBindings
|
|
|
|
|
|
|
|
logger' :: IORef LoggerConfig
|
|
{-# NOINLINE logger' #-}
|
|
logger' = unsafePerformIO
|
|
(newIORef $ LoggerConfig { lcPrintDebug = False
|
|
, colorOutter = \_ -> pure ()
|
|
, rawOutter = \_ -> pure ()
|
|
}
|
|
)
|
|
|
|
|
|
brickMain :: AppState
|
|
-> Maybe URI
|
|
-> LoggerConfig
|
|
-> GHCupDownloads
|
|
-> PlatformRequest
|
|
-> IO ()
|
|
brickMain s muri l av pfreq' = do
|
|
writeIORef uri' muri
|
|
writeIORef settings' s
|
|
-- logger interpreter
|
|
writeIORef logger' l
|
|
let runLogger = myLoggerT l
|
|
|
|
eAppData <- getAppData (Just av) pfreq'
|
|
case eAppData of
|
|
Right ad ->
|
|
defaultMain
|
|
app
|
|
(BrickState ad
|
|
defaultAppSettings
|
|
(constructList ad defaultAppSettings Nothing)
|
|
(keyBindings s)
|
|
|
|
)
|
|
$> ()
|
|
Left e -> do
|
|
runLogger ($(logError) [i|Error building app state: #{show e}|])
|
|
exitWith $ ExitFailure 2
|
|
|
|
|
|
defaultAppSettings :: BrickSettings
|
|
defaultAppSettings = BrickSettings { showAll = False }
|
|
|
|
|
|
getDownloads' :: IO (Either String GHCupDownloads)
|
|
getDownloads' = do
|
|
muri <- readIORef uri'
|
|
settings <- readIORef settings'
|
|
l <- readIORef logger'
|
|
let runLogger = myLoggerT l
|
|
|
|
r <-
|
|
runLogger
|
|
. flip runReaderT settings
|
|
. runE @'[JSONError , DownloadFailed , FileDoesNotExistError]
|
|
$ fmap _ghcupDownloads
|
|
$ liftE
|
|
$ getDownloadsF (maybe GHCupURL OwnSource muri)
|
|
|
|
case r of
|
|
VRight a -> pure $ Right a
|
|
VLeft e -> pure $ Left [i|#{e}|]
|
|
|
|
|
|
getAppData :: Maybe GHCupDownloads
|
|
-> PlatformRequest
|
|
-> IO (Either String BrickData)
|
|
getAppData mg pfreq' = do
|
|
settings <- readIORef settings'
|
|
l <- readIORef logger'
|
|
let runLogger = myLoggerT l
|
|
|
|
r <- maybe getDownloads' (pure . Right) mg
|
|
|
|
runLogger . flip runReaderT settings $ do
|
|
case r of
|
|
Right dls -> do
|
|
lV <- listVersions dls Nothing Nothing pfreq'
|
|
pure $ Right $ (BrickData (reverse lV) dls pfreq')
|
|
Left e -> pure $ Left [i|#{e}|]
|
|
|