How can I use `cabal repl` instead of `ghci` in `ghc-mod`?

Question

我想使用cabal repl代替ghci（。我的目标是能够在我的项目中使用其他模块）。

Answer 1

My setups uses this:

(setq haskell-program-name "cabal repl")
(setq haskell-ghci-program-name "cabal repl")
(custom-set-variables
 ;; ...
 '(haskell-process-type 'cabal-repl)
 ;; ...
)

concerning ghc and cabal and is running fine as it is (current ghc-mod and emacs 24.3.1)

Answer 2

GHC-mod has an issue about this, where the author suggests changing the GHCi executable:

(setq haskell-ghci-program-name "cabal")
(setq haskell-ghci-program-args '("repl"))

Answer 3

You should consider to setup Haskell Interactive Mode .

Unlike Inferior Haskell Mode, this mode is deeply integrated into Cabal. It does not only use cabal repl , but also interprets Cabal error messages and suggests to add imports or language extensions, and provides completion for modules.