Implement new custom `cabal` build

Setup.hs

@@ -1,17 +1,93 @@
+import Control.Exception (throw)
+import Control.Monad (forM_, when)
+import Data.Maybe (isNothing)
 import Distribution.PackageDescription
 import Distribution.Simple
 import Distribution.Simple.LocalBuildInfo (LocalBuildInfo(..), localPkgDescr)
 import Distribution.Simple.PreProcess
+import Distribution.Simple.Program.Find
+  ( defaultProgramSearchPath
+  , findProgramOnSearchPath
+  )
 import Distribution.Simple.Setup
-import System.Directory (getCurrentDirectory)
+import Distribution.Simple.Utils
+  ( IODataMode(IODataModeBinary)
+  , maybeExit
+  , rawSystemStdInOut
+  )
+import Distribution.Verbosity (Verbosity)
+import qualified Distribution.Verbosity as Verbosity
+import System.Directory
+  ( XdgDirectory(..)
+  , copyFile
+  , createDirectory
+  , createDirectoryIfMissing
+  , doesDirectoryExist
+  , doesFileExist
+  , getCurrentDirectory
+  , getDirectoryContents
+  , getHomeDirectory
+  , getXdgDirectory
+  )
+import System.Environment
 import System.FilePath ((</>))
+import Text.Regex
+import Text.Regex.Base
 
 main :: IO ()
 main = defaultMainWithHooks hooks
   where
     hooks =
       simpleUserHooks
-        {confHook = \a flags -> confHook simpleUserHooks a flags >>= rsAddDirs}
+        { preConf =
+            \_ flags -> do
+              prepDeps (fromFlag $ configVerbosity flags)
+              pure emptyHookedBuildInfo
+        --, confHook = \a flags -> confHook simpleUserHooks a flags >>= rsAddDirs
+        }
+
+execCargo :: Verbosity -> String -> [String] -> IO ()
+execCargo verbosity command args = do
+  cargoPath <-
+    findProgramOnSearchPath Verbosity.silent defaultProgramSearchPath "cargo"
+  dir <- getCurrentDirectory
+  let cargoExec =
+        case cargoPath of
+          Just (p, _) -> p
+          Nothing -> "cargo"
+      cargoArgs = command : args
+      workingDir = Just (dir </> rsFolder)
+      thirdComponent (_, _, c) = c
+  maybeExit . fmap thirdComponent $
+    rawSystemStdInOut
+      verbosity
+      cargoExec
+      cargoArgs
+      workingDir
+      Nothing
+      Nothing
+      IODataModeBinary
+
+rsMake :: Verbosity -> IO ()
+rsMake verbosity = do
+  execCargo verbosity "cbuild" []
+
+prepDeps :: Verbosity -> IO ()
+prepDeps verbosity = do
+  ldPath <- lookupEnv "LD_LIBRARY_PATH"
+  pkgPath <- lookupEnv "PKG_CONFIG_PATH"
+  if maybe False (matchTest (mkRegex ".*zcash-haskell.*")) ldPath &&
+     maybe False (matchTest (mkRegex ".*zcash-haskell.*")) pkgPath
+    then do
+      execCargo verbosity "cbuild" []
+      localData <- getXdgDirectory XdgData "zcash-haskell"
+      createDirectoryIfMissing True localData
+      dir <- getCurrentDirectory
+      let rustLibDir =
+            dir </> rsFolder </> "target/x86_64-unknown-linux-gnu/debug"
+      copyDir rustLibDir localData
+    else throw $
+         userError "Paths not set correctly, please run the 'configure' script."
 
 rsFolder :: FilePath
 rsFolder = "zcash-haskell/librustzcash-wrapper"
@@ -32,3 +108,24 @@ rsAddDirs lbi' = do
           , extraLibDirs = rustLibDir : extraLibDirs libBuild
           }
   pure $ updateLbi lbi'
+
+copyDir :: FilePath -> FilePath -> IO ()
+copyDir src dst = do
+  whenM (not <$> doesDirectoryExist src) $
+    throw (userError "source does not exist")
+  --whenM (doesFileOrDirectoryExist dst) $
+    --throw (userError "destination already exists")
+  createDirectoryIfMissing True dst
+  content <- getDirectoryContents src
+  let xs = filter (`notElem` [".", ".."]) content
+  forM_ xs $ \name -> do
+    let srcPath = src </> name
+    let dstPath = dst </> name
+    isDirectory <- doesDirectoryExist srcPath
+    if isDirectory
+      then copyDir srcPath dstPath
+      else copyFile srcPath dstPath
+  where
+    doesFileOrDirectoryExist x = orM [doesDirectoryExist x, doesFileExist x]
+    orM xs = or <$> sequence xs
+    whenM s r = s >>= flip when r

cabal.project

@@ -1,6 +1,6 @@
 packages:
-  zcash-haskell/zcash-haskell.cabal
   ./*.cabal
+  zcash-haskell/zcash-haskell.cabal
 
 with-compiler: ghc-9.4.8
 

configure

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+echo "export PKG_CONFIG_PATH=$HOME/.local/share/zcash-haskell:\$PKG_CONFIG_PATH" | tee -a ~/.bashrc
+echo "export LD_LIBRARY_PATH=$HOME/.local/share/zcash-haskell:\$LD_LIBRARY_PATH" | tee -a ~/.bashrc
+source ~/.bashrc
+cd zcash-haskell && cabal build

zcash-haskell

@@ -1 +1 @@
-Subproject commit ef93147f22a72cf3a5ffc2db686626d75704024a
+Subproject commit 419f041ca9d1dd921673721c56a673fe1dc058e8

zenith.cabal

@@ -1,6 +1,6 @@
 cabal-version:    3.0
 name:             zenith
-version:          0.4.2.1
+version:          0.4.3.0
 license:          MIT
 license-file:     LICENSE
 author:           Rene Vergara
@@ -18,10 +18,12 @@ common warnings
 
 custom-setup
   setup-depends:
-      base >= 4.7 && < 5
+      base >= 4.12 && < 5
-    , Cabal >= 3.0.0.0
+    , Cabal >= 3.2.0.0
     , directory >= 1.3.6.0
     , filepath >= 1.3.0.2
+    , regex-base
+    , regex-compat
 
 library
   import: warnings
@@ -39,7 +41,7 @@ library
       Clipboard
     , aeson
     , array
-    , base >=4.7 && <5
+    , base >=4.12 && <5
     , base64-bytestring
     , brick
     , bytestring
@@ -63,7 +65,7 @@ library
     , vty
     , zcash-haskell
   --pkgconfig-depends: rustzcash_wrapper
-  default-language: GHC2021
+  default-language: Haskell2010
 
 executable zenith
   import: warnings
@@ -71,7 +73,7 @@ executable zenith
   hs-source-dirs:
     app
   build-depends:
-      base >=4.7 && <5
+      base >=4.12 && <5
     , brick
     , bytestring
     , configurator
@@ -81,8 +83,9 @@ executable zenith
     , text
     , time
     , zenith
+    , zcash-haskell
   pkgconfig-depends: rustzcash_wrapper
-  default-language: GHC2021
+  default-language: Haskell2010
 
 test-suite zenith-tests
   import: warnings
@@ -91,7 +94,7 @@ test-suite zenith-tests
   hs-source-dirs:
     test
   build-depends:
-      base >=4.7 && <5
+      base >=4.12 && <5
     , bytestring
     , configurator
     , data-default
@@ -104,4 +107,4 @@ test-suite zenith-tests
     , zcash-haskell
     , zenith
   pkgconfig-depends: rustzcash_wrapper
-  default-language: GHC2021
+  default-language: Haskell2010