guix-devel/emacs/guix.el

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;;; guix.el --- Interface for GNU Guix package manager
;; Copyright © 2014 Alex Kost <alezost@gmail.com>
;; Package-Requires: ((geiser "0.3"))
;; Keywords: tools
;; This file is part of GNU Guix.
;; GNU Guix 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 of the License, or
;; (at your option) any later version.
;; GNU Guix 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/>.
;;; Commentary:
;; This package provides an interface for searching, listing and getting
;; information about Guix packages and generations; and for
;; installing/upgrading/removing packages.
;;; Code:
(require 'guix-list)
(require 'guix-info)
(defgroup guix nil
"Interface for Guix package manager."
:prefix "guix-"
:group 'external)
(defcustom guix-list-single-package nil
"If non-nil, list a package even if it is the only matching result.
If nil, show a single package in the info buffer."
:type 'boolean
:group 'guix)
(defcustom guix-show-generations-function 'guix-generation-list-get-show
"Default function used to display generations."
:type '(choice (function-item guix-generation-list-get-show)
(function-item guix-generation-info-get-show))
:group 'guix)
(defvar guix-search-params '(name synopsis description)
"Default list of package parameters for searching by regexp.")
(defvar guix-search-history nil
"A history of minibuffer prompts.")
(defun guix-get-show-packages (search-type &rest search-vals)
"Search for packages and show results.
See `guix-get-entries' for the meaning of SEARCH-TYPE and
SEARCH-VALS.
Results are displayed in the list buffer, unless a single package
is found and `guix-list-single-package' is nil."
(let* ((list-params (guix-package-list-get-params-for-receiving))
(packages (guix-get-entries 'package search-type
search-vals list-params)))
(if (or guix-list-single-package
(cdr packages))
(guix-package-list-set packages search-type search-vals)
(let ((info-params (guix-package-info-get-params-for-receiving)))
(unless (equal list-params info-params)
;; If we don't have required info, we should receive it again
(setq packages (guix-get-entries 'package search-type
search-vals info-params))))
(guix-package-info-set packages search-type search-vals))))
(defun guix-get-show-generations (search-type &rest search-vals)
"Search for generations and show results."
(apply guix-show-generations-function search-type search-vals))
;;;###autoload
(defun guix-search-by-name (name)
"Search for Guix packages by NAME.
NAME is a string with name specification. It may optionally contain
a version number. Examples: \"guile\", \"guile-2.0.11\"."
(interactive
(list (read-string "Package name: " nil 'guix-search-history)))
(guix-get-show-packages 'name name))
;;;###autoload
(defun guix-search-by-regexp (regexp &rest params)
"Search for Guix packages by REGEXP.
PARAMS are package parameters that should be searched.
If PARAMS are not specified, use `guix-search-params'."
(interactive
(list (read-string "Regexp: " nil 'guix-search-history)))
(or params (setq params guix-search-params))
(guix-get-show-packages 'regexp regexp params))
;;;###autoload
(defun guix-installed-packages ()
"Display information about installed Guix packages."
(interactive)
(guix-get-show-packages 'installed))
;;;###autoload
(defun guix-obsolete-packages ()
"Display information about obsolete Guix packages."
(interactive)
(guix-get-show-packages 'obsolete))
;;;###autoload
(defun guix-all-available-packages ()
"Display information about all available Guix packages."
(interactive)
(guix-get-show-packages 'all-available))
;;;###autoload
(defun guix-newest-available-packages ()
"Display information about the newest available Guix packages."
(interactive)
(guix-get-show-packages 'newest-available))
;;;###autoload
(defun guix-generations (&optional number)
"Display information about last NUMBER generations.
If NUMBER is nil, display all generations.
Generations can be displayed in a list or info buffers depending
on `guix-show-generations-function'.
Interactively, NUMBER is defined by a numeric prefix."
(interactive "P")
(if (numberp number)
(guix-get-show-generations 'last number)
(guix-get-show-generations 'all)))
(provide 'guix)
;;; guix.el ends here