tvl-depot/configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180913.348/haskell-sandbox.el

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;;; haskell-sandbox.el --- Support for sandboxes -*- lexical-binding: t -*-
;; Copyright (c) 2014 Chris Done. All rights reserved.
;; This file is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;; This file is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Code:
(require 'cl-lib)
(require 'haskell-session)
(defun haskell-sandbox-path (session)
"If there is a haskell-session, return the path to the usual sandbox location."
(concat (haskell-session-cabal-dir session)
"/.cabal-sandbox"))
(defun haskell-sandbox-exists-p (session)
"Is there a cabal sandbox?"
(file-exists-p (haskell-sandbox-path session)))
(defun haskell-sandbox-pkgdb (session)
"Get the package database of the sandbox."
(let* ((files (directory-files (haskell-sandbox-path session)))
(dir (car (cl-remove-if-not (lambda (file)
(string-match ".conf.d$" file))
files))))
(when dir
(concat (haskell-sandbox-path session) "/" dir))))
(provide 'haskell-sandbox)