63 lines
2 KiB
EmacsLisp
63 lines
2 KiB
EmacsLisp
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;;; guix-profiles.el --- Guix profiles
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;; Copyright © 2014 Alex Kost <alezost@gmail.com>
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;; This file is part of GNU Guix.
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;; GNU Guix is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Guix is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Code:
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(defvar guix-user-profile
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(expand-file-name "~/.guix-profile")
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"User profile.")
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(defvar guix-default-profile
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(concat (or (getenv "NIX_STATE_DIR") "@guix_localstatedir@/guix")
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"/profiles/per-user/"
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(getenv "USER")
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"/guix-profile")
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"Default Guix profile.")
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(defvar guix-current-profile guix-default-profile
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"Current profile.")
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(defun guix-profile-prompt (&optional default)
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"Prompt for profile and return it.
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Use DEFAULT as a start directory. If it is nil, use
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`guix-current-profile'."
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(let* ((path (read-file-name "Profile: "
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(file-name-directory
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(or default guix-current-profile))))
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(path (directory-file-name (expand-file-name path))))
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(if (string= path guix-user-profile)
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guix-default-profile
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path)))
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(defun guix-set-current-profile (path)
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"Set `guix-current-profile' to PATH.
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Interactively, prompt for PATH. With prefix, use
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`guix-default-profile'."
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(interactive
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(list (if current-prefix-arg
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guix-default-profile
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(guix-profile-prompt))))
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(setq guix-current-profile path)
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(message "Current profile has been set to '%s'."
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guix-current-profile))
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(provide 'guix-profiles)
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;;; guix-profiles.el ends here
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