diff options
Diffstat (limited to 'emacs/guix-messages.el')
| -rw-r--r-- | emacs/guix-messages.el | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/emacs/guix-messages.el b/emacs/guix-messages.el new file mode 100644 index 0000000000..7a0b493ac7 --- /dev/null +++ b/emacs/guix-messages.el @@ -0,0 +1,192 @@ +;;; guix-messages.el --- Minibuffer messages + +;; Copyright © 2014 Alex Kost <alezost@gmail.com> + +;; 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 file provides `guix-result-message' function used to show a +;; minibuffer message after displaying packages/generations in a +;; list/info buffer. + +;;; Code: + +(require 'cl-lib) +(require 'guix-utils) + +(defvar guix-messages + `((package + (id + (0 "Packages not found.") + (1 "") + (many "%d packages." count)) + (name + ,(lambda (_ entries names) + (guix-message-packages-by-name entries 'package names))) + (regexp + (0 "No packages matching '%s'." val) + (1 "A single package matching '%s'." val) + (many "%d packages matching '%s'." count val)) + (all-available + (0 "No packages are available for some reason.") + (1 "A single available package (that's strange).") + (many "%d available packages." count)) + (newest-available + (0 "No packages are available for some reason.") + (1 "A single newest available package (that's strange).") + (many "%d newest available packages." count)) + (installed + (0 "No packages installed in profile '%s'." profile) + (1 "A single package installed in profile '%s'." profile) + (many "%d packages installed in profile '%s'." count profile)) + (obsolete + (0 "No obsolete packages in profile '%s'." profile) + (1 "A single obsolete package in profile '%s'." profile) + (many "%d obsolete packages in profile '%s'." count profile)) + (generation + (0 "No packages installed in generation %d of profile '%s'." + val profile) + (1 "A single package installed in generation %d of profile '%s'." + val profile) + (many "%d packages installed in generation %d of profile '%s'." + count val profile))) + + (output + (id + (0 "Package outputs not found.") + (1 "") + (many "%d package outputs." count)) + (name + ,(lambda (_ entries names) + (guix-message-packages-by-name entries 'output names))) + (regexp + (0 "No package outputs matching '%s'." val) + (1 "A single package output matching '%s'." val) + (many "%d package outputs matching '%s'." count val)) + (all-available + (0 "No package outputs are available for some reason.") + (1 "A single available package output (that's strange).") + (many "%d available package outputs." count)) + (newest-available + (0 "No package outputs are available for some reason.") + (1 "A single newest available package output (that's strange).") + (many "%d newest available package outputs." count)) + (installed + (0 "No package outputs installed in profile '%s'." profile) + (1 "A single package output installed in profile '%s'." profile) + (many "%d package outputs installed in profile '%s'." count profile)) + (obsolete + (0 "No obsolete package outputs in profile '%s'." profile) + (1 "A single obsolete package output in profile '%s'." profile) + (many "%d obsolete package outputs in profile '%s'." count profile)) + (generation + (0 "No package outputs installed in generation %d of profile '%s'." + val profile) + (1 "A single package output installed in generation %d of profile '%s'." + val profile) + (many "%d package outputs installed in generation %d of profile '%s'." + count val profile))) + + (generation + (id + (0 "Generations not found.") + (1 "") + (many "%d generations." count)) + (last + (0 "No generations in profile '%s'." profile) + (1 "The last generation of profile '%s'." profile) + (many "%d last generations of profile '%s'." count profile)) + (all + (0 "No generations in profile '%s'." profile) + (1 "A single generation available in profile '%s'." profile) + (many "%d generations available in profile '%s'." count profile)) + (time + guix-message-generations-by-time)))) + +(defun guix-message-string-name (name) + "Return a quoted name string." + (concat "'" name "'")) + +(defun guix-message-string-entry-type (entry-type &optional plural) + "Return a string denoting an ENTRY-TYPE." + (cl-ecase entry-type + (package + (if plural "packages" "package")) + (output + (if plural "package outputs" "package output")) + (generation + (if plural "generations" "generation")))) + +(defun guix-message-string-entries (count entry-type) + "Return a string denoting the COUNT of ENTRY-TYPE entries." + (cl-case count + (0 (concat "No " + (guix-message-string-entry-type + entry-type 'plural))) + (1 (concat "A single " + (guix-message-string-entry-type + entry-type))) + (t (format "%d %s" + count + (guix-message-string-entry-type + entry-type 'plural))))) + +(defun guix-message-packages-by-name (entries entry-type names) + "Display a message for packages or outputs searched by NAMES." + (let* ((count (length entries)) + (str-beg (guix-message-string-entries count entry-type)) + (str-end (if (cdr names) + (concat "matching the following names: " + (mapconcat #'guix-message-string-name + names ", ")) + (concat "with name " + (guix-message-string-name (car names)))))) + (message "%s %s." str-beg str-end))) + +(defun guix-message-generations-by-time (profile entries times) + "Display a message for generations searched by TIMES." + (let* ((count (length entries)) + (str-beg (guix-message-string-entries count 'generation)) + (time-beg (guix-get-time-string (car times))) + (time-end (guix-get-time-string (cadr times)))) + (message (concat "%s of profile '%s'\n" + "matching time period '%s' - '%s'.") + str-beg profile time-beg time-end))) + +(defun guix-result-message (profile entries entry-type + search-type search-vals) + "Display an appropriate message after displaying ENTRIES." + (let* ((type-spec (guix-get-key-val guix-messages + entry-type search-type)) + (fun-or-count-spec (car type-spec))) + (if (functionp fun-or-count-spec) + (funcall fun-or-count-spec profile entries search-vals) + (let* ((count (length entries)) + (count-key (if (> count 1) 'many count)) + (msg-spec (guix-get-key-val type-spec count-key)) + (msg (car msg-spec)) + (args (cdr msg-spec))) + (mapc (lambda (subst) + (setq args (cl-substitute (cdr subst) (car subst) args))) + `((count . ,count) + (val . ,(car search-vals)) + (profile . ,profile))) + (apply #'message msg args))))) + +(provide 'guix-messages) + +;;; guix-messages.el ends here |