* emacs/guix-main.scm (register-package, packages-from-file): New procedures. (%patterns-makers): Add 'from-file' search type. * emacs/guix-messages.el (guix-messages): Add messages for it. * emacs/guix-ui-package.el (guix-package-from-file): New command. (guix-package-info-insert-location): Adjust for 'from-file' type. * doc/emacs.texi (Emacs Commands): Document it.
		
			
				
	
	
		
			247 lines
		
	
	
	
		
			9.8 KiB
		
	
	
	
		
			EmacsLisp
		
	
	
	
	
	
			
		
		
	
	
			247 lines
		
	
	
	
		
			9.8 KiB
		
	
	
	
		
			EmacsLisp
		
	
	
	
	
	
| ;;; guix-messages.el --- Minibuffer messages
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| 
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| ;; Copyright © 2014, 2015 Alex Kost <alezost@gmail.com>
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| 
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| ;; This file is part of GNU Guix.
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| 
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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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| 
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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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| 
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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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| 
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| ;;; Commentary:
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| 
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| ;; This file provides `guix-result-message' function used to show a
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| ;; minibuffer message after displaying packages/generations in a
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| ;; list/info buffer.
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| 
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| ;;; Code:
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| 
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| (require 'cl-lib)
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| (require 'guix-utils)
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| 
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| (defvar guix-messages
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|   `((package
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|      (id
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|       ,(lambda (_ entries ids)
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|          (guix-message-packages-by-id entries 'package ids)))
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|      (name
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|       ,(lambda (_ entries names)
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|          (guix-message-packages-by-name entries 'package names)))
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|      (license
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|       ,(lambda (_ entries licenses)
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|          (apply #'guix-message-packages-by-license
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|                 entries 'package licenses)))
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|      (location
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|       ,(lambda (_ entries locations)
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|          (apply #'guix-message-packages-by-location
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|                 entries 'package locations)))
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|      (from-file
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|       (0 "No package in file '%s'." val)
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|       (1 "Package from file '%s'." val))
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|      (regexp
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|       (0 "No packages matching '%s'." val)
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|       (1 "A single package matching '%s'." val)
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|       (many "%d packages matching '%s'." count val))
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|      (all-available
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|       (0 "No packages are available for some reason.")
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|       (1 "A single available package (that's strange).")
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|       (many "%d available packages." count))
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|      (newest-available
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|       (0 "No packages are available for some reason.")
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|       (1 "A single newest available package (that's strange).")
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|       (many "%d newest available packages." count))
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|      (installed
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|       (0 "No packages installed in profile '%s'." profile)
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|       (1 "A single package installed in profile '%s'." profile)
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|       (many "%d packages installed in profile '%s'." count profile))
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|      (obsolete
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|       (0 "No obsolete packages in profile '%s'." profile)
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|       (1 "A single obsolete package in profile '%s'." profile)
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|       (many "%d obsolete packages in profile '%s'." count profile)))
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| 
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|     (output
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|      (id
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|       ,(lambda (_ entries ids)
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|          (guix-message-packages-by-id entries 'output ids)))
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|      (name
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|       ,(lambda (_ entries names)
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|          (guix-message-packages-by-name entries 'output names)))
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|      (license
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|       ,(lambda (_ entries licenses)
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|          (apply #'guix-message-packages-by-license
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|                 entries 'output licenses)))
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|      (location
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|       ,(lambda (_ entries locations)
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|          (apply #'guix-message-packages-by-location
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|                 entries 'output locations)))
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|      (from-file
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|       (0 "No package in file '%s'." val)
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|       (1 "Package from file '%s'." val)
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|       (many "Package outputs from file '%s'." val))
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|      (regexp
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|       (0 "No package outputs matching '%s'." val)
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|       (1 "A single package output matching '%s'." val)
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|       (many "%d package outputs matching '%s'." count val))
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|      (all-available
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|       (0 "No package outputs are available for some reason.")
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|       (1 "A single available package output (that's strange).")
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|       (many "%d available package outputs." count))
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|      (newest-available
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|       (0 "No package outputs are available for some reason.")
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|       (1 "A single newest available package output (that's strange).")
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|       (many "%d newest available package outputs." count))
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|      (installed
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|       (0 "No package outputs installed in profile '%s'." profile)
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|       (1 "A single package output installed in profile '%s'." profile)
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|       (many "%d package outputs installed in profile '%s'." count profile))
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|      (obsolete
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|       (0 "No obsolete package outputs in profile '%s'." profile)
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|       (1 "A single obsolete package output in profile '%s'." profile)
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|       (many "%d obsolete package outputs in profile '%s'." count profile))
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|      (profile-diff
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|       guix-message-outputs-by-diff))
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| 
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|     (generation
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|      (id
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|       (0 "Generations not found.")
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|       (1 "")
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|       (many "%d generations." count))
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|      (last
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|       (0 "No generations in profile '%s'." profile)
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|       (1 "The last generation of profile '%s'." profile)
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|       (many "%d last generations of profile '%s'." count profile))
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|      (all
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|       (0 "No generations in profile '%s'." profile)
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|       (1 "A single generation available in profile '%s'." profile)
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|       (many "%d generations available in profile '%s'." count profile))
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|      (time
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|       guix-message-generations-by-time))))
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| 
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| (defun guix-message-string-name (name)
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|   "Return a quoted name string."
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|   (concat "'" name "'"))
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| 
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| (defun guix-message-string-entry-type (entry-type &optional plural)
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|   "Return a string denoting an ENTRY-TYPE."
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|   (cl-ecase entry-type
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|     (package
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|      (if plural "packages" "package"))
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|     (output
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|      (if plural "package outputs" "package output"))
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|     (generation
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|      (if plural "generations" "generation"))))
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| 
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| (defun guix-message-string-entries (count entry-type)
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|   "Return a string denoting the COUNT of ENTRY-TYPE entries."
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|   (cl-case count
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|     (0 (concat "No "
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|                (guix-message-string-entry-type
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|                 entry-type 'plural)))
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|     (1 (concat "A single "
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|                (guix-message-string-entry-type
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|                 entry-type)))
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|     (t (format "%d %s"
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|                count
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|                (guix-message-string-entry-type
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|                 entry-type 'plural)))))
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| 
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| (defun guix-message-packages-by-id (entries entry-type ids)
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|   "Display a message for packages or outputs searched by IDS."
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|   (let* ((count (length entries))
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|          (str-beg (guix-message-string-entries count entry-type))
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|          (str-end (if (> count 1)
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|                       (concat "with the following IDs: "
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|                               (mapconcat #'guix-get-string ids ", "))
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|                     (concat "with ID " (guix-get-string (car ids))))))
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|     (if (zerop count)
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|         (message "%s %s.
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| Most likely, Guix REPL was restarted, so IDs are not actual
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| anymore, because they live only during the REPL process.
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| Try \"M-x guix-search-by-name\"."
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|                  str-beg str-end)
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|       (message "%s %s." str-beg str-end))))
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| 
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| (defun guix-message-packages-by-name (entries entry-type names)
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|   "Display a message for packages or outputs searched by NAMES."
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|   (let* ((count (length entries))
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|          (str-beg (guix-message-string-entries count entry-type))
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|          (str-end (if (cdr names)
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|                       (concat "matching the following names: "
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|                               (mapconcat #'guix-message-string-name
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|                                          names ", "))
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|                     (concat "with name "
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|                             (guix-message-string-name (car names))))))
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|     (message "%s %s." str-beg str-end)))
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| 
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| (defun guix-message-packages-by-license (entries entry-type license)
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|   "Display a message for packages or outputs searched by LICENSE."
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|   (let* ((count (length entries))
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|          (str-beg (guix-message-string-entries count entry-type))
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|          (str-end (format "with license '%s'" license)))
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|     (message "%s %s." str-beg str-end)))
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| 
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| (defun guix-message-packages-by-location (entries entry-type location)
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|   "Display a message for packages or outputs searched by LOCATION."
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|   (let* ((count   (length entries))
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|          (str-beg (guix-message-string-entries count entry-type))
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|          (str-end (format "placed in '%s'" location)))
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|     (message "%s %s." str-beg str-end)))
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| 
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| (defun guix-message-generations-by-time (profile entries times)
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|   "Display a message for generations searched by TIMES."
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|   (let* ((count (length entries))
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|          (str-beg (guix-message-string-entries count 'generation))
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|          (time-beg (guix-get-time-string (car  times)))
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|          (time-end (guix-get-time-string (cadr times))))
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|     (message (concat "%s of profile '%s'\n"
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|                      "matching time period '%s' - '%s'.")
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|              str-beg profile time-beg time-end)))
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| 
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| (defun guix-message-outputs-by-diff (_ entries profiles)
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|   "Display a message for outputs searched by PROFILES difference."
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|   (let* ((count (length entries))
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|          (str-beg (guix-message-string-entries count 'output))
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|          (profile1 (car  profiles))
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|          (profile2 (cadr profiles)))
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|     (cl-multiple-value-bind (new old str-action)
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|         (if (string-lessp profile2 profile1)
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|             (list profile1 profile2 "added to")
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|           (list profile2 profile1 "removed from"))
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|       (message "%s %s profile '%s' comparing with profile '%s'."
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|                str-beg str-action new old))))
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| 
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| (defun guix-result-message (profile entries entry-type
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|                             search-type search-vals)
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|   "Display an appropriate message after displaying ENTRIES."
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|   (let* ((type-spec (guix-assq-value guix-messages
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|                                      (if (eq entry-type 'system-generation)
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|                                          'generation
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|                                        entry-type)
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|                                      search-type))
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|          (fun-or-count-spec (car type-spec)))
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|     (if (functionp fun-or-count-spec)
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|         (funcall fun-or-count-spec profile entries search-vals)
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|       (let* ((count     (length entries))
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|              (count-key (if (> count 1) 'many count))
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|              (msg-spec  (guix-assq-value type-spec count-key))
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|              (msg       (car msg-spec))
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|              (args      (cdr msg-spec)))
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|         (mapc (lambda (subst)
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|                 (setq args (cl-substitute (cdr subst) (car subst) args)))
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|               `((count   . ,count)
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|                 (val     . ,(car search-vals))
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|                 (profile . ,profile)))
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|         (apply #'message msg args)))))
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| 
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| (provide 'guix-messages)
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| 
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| ;;; guix-messages.el ends here
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