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Cabal 3.2 Release & Recent Hackage/Cabal3 Server Update

Cabal 3.2 has finally been released, including new bug fixes, features, and a Hackage Server update. You can find the project Changelog on github if you want the rest of the changeset between this version and Cabal 3.0.

In this post, we'll go over some of the highlights in this release, as well as detail some upcomings line items and milestones for future planned work on the library.

Highlights & Bugfixes

The 3.2 changeset features the following:

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import Control.Exception
import Control.Monad
import Data.Maybe
import Data.Version
import Distribution.PackageDescription (PackageDescription(..), HookedBuildInfo, GenericPackageDescription(..))
import Distribution.Package (PackageIdentifier(..))
import Distribution.Simple (defaultMainWithHooks, simpleUserHooks, UserHooks(..))
import Distribution.Simple.LocalBuildInfo (LocalBuildInfo(..))
import Distribution.Simple.Setup (BuildFlags(..), ConfigFlags(..))
import Distribution.Simple.Utils (die)

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#!/bin/bash

( while read L
  do echo $L > /tmp/pubkey
  printf "%-16s => " $(cut -f 3 -d ' ' /tmp/pubkey)
  ssh-keygen -l -f /tmp/pubkey
  done
  rm /tmp/pubkey
) < .ssh/authorized_keys

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#!/usr/bin/env python

import sys
import os
import os.path
import json

plan = json.load(open("dist-newstyle/cache/plan.json"))

cabal_version = list(map(int,plan["cabal-version"].split('.')))

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#!/usr/bin/env runghc

import Data.Char
import Data.List
import Control.Monad
import Control.Applicative
import Data.Monoid
import Data.Version
import Text.ParserCombinators.ReadP (readP_to_S)

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module Main where

import Foreign.C
import Foreign.Marshal.Alloc
import Foreign.Ptr
import Foreign.Storable
import System.Posix.Internals

-- import System.Environment (getExecutablePath)

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Control.Monad:  fail :: String -> m a
Data.Char:type String = [Char]
Data.Char:lexLitChar :: ReadS String
Data.List:lines :: String -> [String]
Data.List:unlines :: [String] -> String
Data.List:unwords :: [String] -> String
Data.List:words :: String -> [String]
Foreign:throwIf :: (a -> Bool) -> (a -> String) -> IO a -> IO a
Foreign:throwIfNeg :: (Ord a, Num a) => (a -> String) -> IO a -> IO a
Foreign:throwIfNeg_ :: (Ord a, Num a) => (a -> String) -> IO a -> IO ()

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module GenDev where

data Foo = Foo
  { foo :: String
  , bar :: Maybe [Int]
  , baz :: [Int]
  } -- deriving Generic

instance Monoid Foo where
    mempty = Foo mempty mempty mempty 

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{-# LANGUAGE CPP, BangPatterns, MagicHash, UnliftedFFITypes, UnboxedTuples, ScopedTypeVariables #-}

-- | Tests/Benchmarks for new GHC.Integer.GMP.Internals.{import,export}Integer primitives

import           Control.Monad
import           Criterion.Main
import           Data.Bits
import           Data.ByteString.Short.Internal (ShortByteString(SBS))
import qualified Data.ByteString.Short.Internal as SBS
import           Data.List

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API Delta Report for version 4.7.0.0

Modules removed from API version 4.7.0.0:

- Control.Concurrent.SampleVar
- Data.HashTable

Modules added in API version 4.7.0.0: