If you're using several source directories then simply specify them in your
.cabal with hs-source-dirs. So for example if you have a library in src/lib
and a test-suite in src/test and your tests use your lib then you'd have
something like this in your .cabal
library
exposed-modules: Lib
hs-source-dirs: src/lib
test-suite sometest
type: exitcode-stdio-1.0
main-is: Test.hs
hs-source-dirs: src/test src/lib
On 18 April 2014 16:20, Arnaud Bailly
Hello,
I am struggling to get my emacs settings right for doing significant Haskell development, eg. something more involved than a bunch of source files in a single directory. The issue I am running in currently is that when trying to load files in the interpreter, most source paths are missing which means loading inevitably fails. This is especially annoying with tests: To get things working correctly I need to explicitly add in the console
:set -iwhere/my/src/are
Is there any configuration I should be aware of in my cabal files or .emacs file that would correctly set the source roots? Am I missing something?
Here is my .emacs configuration. Thanks for any help.
;; haskell coding
(require 'auto-complete) (require 'haskell-mode) (require 'haskell-cabal)
(autoload 'ghc-init "ghc" nil t)
(add-hook 'haskell-mode-hook (lambda () (ghc-init)))
(eval-after-load "haskell-mode" '(progn (setq haskell-stylish-on-save t) (setq haskell-process-args-cabal-repl '("--ghc-option=-ferror-spans" "--with-ghc=ghci-ng"))
(define-key haskell-mode-map (kbd "C-,") 'haskell-move-nested-left) (define-key haskell-mode-map (kbd "C-.") 'haskell-move-nested-right) (define-key haskell-mode-map (kbd "C-c v c") 'haskell-cabal-visit-file) (define-key haskell-mode-map (kbd "C-c C-c") 'haskell-compile) (define-key haskell-mode-map (kbd "C-x C-d") nil) (setq haskell-font-lock-symbols t)
;; Do this to get a variable in scope
(auto-complete-mode)
;; from http://pastebin.com/tJyyEBAS
(ac-define-source ghc-mod '((depends ghc) (candidates . (ghc-select-completion-symbol)) (symbol . "s") (cache)))
(defun my-ac-haskell-mode () (setq ac-sources '(ac-source-words-in-same-mode-buffers ac-source-dictionary ac-source-ghc-mod))) (add-hook 'haskell-mode-hook 'my-ac-haskell-mode)
(defun my-haskell-ac-init () (when (member (file-name-extension buffer-file-name) '("hs" "lhs")) (auto-complete-mode t) (setq ac-sources '(ac-source-words-in-same-mode-buffers ac-source-dictionary ac-source-ghc-mod)))) (add-hook 'find-file-hook 'my-haskell-ac-init)))
(add-hook 'haskell-mode-hook 'turn-on-haskell-decl-scan) (add-hook 'haskell-mode-hook 'turn-on-haskell-indentation)
(eval-after-load "which-func" '(add-to-list 'which-func-modes 'haskell-mode))
(eval-after-load "haskell-cabal" '(define-key haskell-cabal-mode-map (kbd "C-c C-c") 'haskell-compile))
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