2014-08-27 14:44:17 +02:00
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;;; guix-list.el --- List buffers for displaying entries -*- lexical-binding: t -*-
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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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;;; Commentary:
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;; This file provides a list-like buffer for displaying information
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;; about Guix packages and generations.
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;;; Code:
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(require 'cl-lib)
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(require 'tabulated-list)
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(require 'guix-info)
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(require 'guix-history)
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(require 'guix-base)
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(require 'guix-utils)
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(defgroup guix-list nil
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"General settings for list buffers."
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:prefix "guix-list-"
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:group 'guix)
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(defface guix-list-file-path
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'((t :inherit guix-info-file-path))
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"Face used for file paths."
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:group 'guix-list)
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(defcustom guix-list-describe-warning-count 10
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"The maximum number of entries for describing without a warning.
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If a user wants to describe more than this number of marked
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entries, he will be prompted for confirmation."
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:type 'integer
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:group 'guix-list)
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(defvar guix-list-column-format
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`((package
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(name 20 t)
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(version 10 nil)
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(outputs 13 t)
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(installed 13 t)
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(synopsis 30 nil))
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(generation
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(number 5
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,(lambda (a b) (guix-list-sort-numerically 0 a b))
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:right-align t)
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(time 20 t)
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(path 30 t)))
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"Columns displayed in list buffers.
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Each element of the list has a form:
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(ENTRY-TYPE . ((PARAM WIDTH SORT . PROPS) ...))
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PARAM is the name of an entry parameter of ENTRY-TYPE. For the
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meaning of WIDTH, SORT and PROPS, see `tabulated-list-format'.")
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(defvar guix-list-column-titles
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'((generation
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(number . "N.")))
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"Column titles for list buffers.
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Has the same structure as `guix-param-titles', but titles from
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this list have a priority.")
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(defvar guix-list-column-value-methods
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'((package
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(name . guix-package-list-get-name)
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(synopsis . guix-list-get-one-line)
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(description . guix-list-get-one-line)
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(installed . guix-package-list-get-installed-outputs))
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(generation
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(time . guix-list-get-time)
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(path . guix-list-get-file-path)))
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"Methods for inserting parameter values in columns.
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Each element of the list has a form:
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(ENTRY-TYPE . ((PARAM . FUN) ...))
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PARAM is the name of an entry parameter of ENTRY-TYPE.
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FUN is a function returning a value that will be inserted. The
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function is called with 2 arguments: the first one is the value
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of the parameter; the second argument is an entry info (alist of
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parameters and their values).")
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(defun guix-list-get-param-title (entry-type param)
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"Return title of an ENTRY-TYPE entry parameter PARAM."
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(or (guix-get-key-val guix-list-column-titles
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entry-type param)
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(guix-get-param-title entry-type param)))
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(defun guix-list-get-column-format (entry-type)
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"Return column format for ENTRY-TYPE."
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(guix-get-key-val guix-list-column-format entry-type))
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(defun guix-list-get-displayed-params (entry-type)
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"Return list of parameters of ENTRY-TYPE that should be displayed."
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(mapcar #'car
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(guix-list-get-column-format entry-type)))
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(defun guix-list-get-sort-key (entry-type param &optional invert)
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"Return suitable sort key for `tabulated-list-sort-key'.
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Define column title by ENTRY-TYPE and PARAM. If INVERT is
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non-nil, invert the sort."
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(when (memq param (guix-list-get-displayed-params entry-type))
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(cons (guix-list-get-param-title entry-type param) invert)))
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(defun guix-list-sort-numerically (column a b)
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"Compare COLUMN of tabulated entries A and B numerically.
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It is a sort predicate for `tabulated-list-format'.
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Return non-nil, if B is bigger than A."
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(cl-flet ((num (entry)
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(string-to-number (aref (cadr entry) column))))
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(> (num b) (num a))))
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(defun guix-list-make-tabulated-vector (entry-type fun)
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"Call FUN on each column specification for ENTRY-TYPE.
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FUN is called with 2 argument: parameter name and column
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specification (see `guix-list-column-format').
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Return a vector made of values of FUN calls."
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(apply #'vector
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(mapcar (lambda (col-spec)
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(funcall fun (car col-spec) (cdr col-spec)))
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(guix-list-get-column-format entry-type))))
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(defun guix-list-get-list-format (entry-type)
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"Return ENTRY-TYPE list specification for `tabulated-list-format'."
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(guix-list-make-tabulated-vector
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entry-type
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(lambda (param spec)
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(cons (guix-list-get-param-title entry-type param)
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spec))))
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(defun guix-list-insert-entries (entries entry-type)
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"Display ENTRIES of ENTRY-TYPE in the current list buffer.
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ENTRIES should have a form of `guix-entries'."
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(setq tabulated-list-entries
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(guix-list-get-tabulated-entries entries entry-type))
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(tabulated-list-print))
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(defun guix-list-get-tabulated-entries (entries entry-type)
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"Return list of values of ENTRY-TYPE for `tabulated-list-entries'.
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Values are taken from ENTRIES which should have the form of
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`guix-entries'."
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(mapcar (lambda (entry)
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(list (guix-get-key-val entry 'id)
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(guix-list-get-tabulated-entry entry entry-type)))
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entries))
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(defun guix-list-get-tabulated-entry (entry entry-type)
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"Return array of values for `tabulated-list-entries'.
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Parameters are taken from ENTRY of ENTRY-TYPE."
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(guix-list-make-tabulated-vector
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entry-type
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(lambda (param _)
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(let ((val (guix-get-key-val entry param))
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(fun (guix-get-key-val guix-list-column-value-methods
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entry-type param)))
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(if (and val fun)
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(funcall fun val entry)
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(guix-get-string val))))))
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(defun guix-list-get-one-line (str &optional _)
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"Return one-line string from a multi-line STR."
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(guix-get-one-line str))
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(defun guix-list-get-time (seconds &optional _)
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"Return formatted time string from SECONDS."
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(guix-get-time-string seconds))
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(defun guix-list-get-file-path (path &optional _)
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"Return PATH button specification for `tabulated-list-entries'."
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(list path
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'face 'guix-list-file-path
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'action (lambda (btn) (find-file (button-label btn)))
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'follow-link t
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'help-echo "Find file"))
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(defun guix-list-current-id ()
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"Return ID of the current entry."
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(or (tabulated-list-get-id)
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(user-error "No entry here")))
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(defun guix-list-current-entry ()
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"Return alist of the current entry info."
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(guix-get-entry-by-id (guix-list-current-id) guix-entries))
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(defun guix-list-for-each-line (fun &rest args)
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"Call FUN with ARGS for each entry line."
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(or (derived-mode-p 'guix-list-mode)
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(error "The current buffer is not in Guix List mode"))
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(save-excursion
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(goto-char (point-min))
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(while (not (eobp))
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(apply fun args)
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(forward-line))))
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(defun guix-list-fold-lines (fun init)
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"Fold over entry lines in the current list buffer.
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Call FUN with RESULT as argument for each line, using INIT as
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the initial value of RESULT. Return the final result."
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(let ((res init))
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(guix-list-for-each-line
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(lambda () (setq res (funcall fun res))))
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res))
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;;; Marking and sorting
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(defvar-local guix-list-marked nil
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"List of the marked entries.
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Each element of the list has a form:
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(ID MARK-NAME . ARGS)
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ID is an entry ID.
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MARK-NAME is a symbol from `guix-list-mark-alist'.
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ARGS is a list of additional values.")
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(defvar guix-list-mark-alist
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'((empty . ?\s)
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(general . ?*))
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"Alist of available mark names and mark characters.")
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(defsubst guix-list-get-mark (name)
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"Return mark character by its NAME."
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(or (guix-get-key-val guix-list-mark-alist name)
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(error "Mark '%S' not found" name)))
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(defsubst guix-list-get-mark-string (name)
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"Return mark string by its NAME."
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(string (guix-list-get-mark name)))
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(defun guix-list-current-mark ()
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"Return mark character of the current line."
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(char-after (line-beginning-position)))
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(defun guix-list-get-marked (&rest mark-names)
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"Return list of specs of entries marked with any mark from MARK-NAMES.
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Entry specs are elements from `guix-list-marked' list.
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If MARK-NAMES are not specified, use all marks from
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`guix-list-mark-alist' except the `empty' one."
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(or mark-names
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(setq mark-names
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(delq 'empty
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(mapcar #'car guix-list-mark-alist))))
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(cl-remove-if-not (lambda (assoc)
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(memq (cadr assoc) mark-names))
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guix-list-marked))
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(defun guix-list-get-marked-args (mark-name)
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"Return list of (ID . ARGS) elements from lines marked with MARK-NAME.
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See `guix-list-marked' for the meaning of ARGS."
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(mapcar (lambda (spec)
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(let ((id (car spec))
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(args (cddr spec)))
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(cons id args)))
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(guix-list-get-marked mark-name)))
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(defun guix-list-get-marked-id-list (&rest mark-names)
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"Return list of IDs of entries marked with any mark from MARK-NAMES.
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See `guix-list-get-marked' for details."
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(mapcar #'car (apply #'guix-list-get-marked mark-names)))
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(defun guix-list-mark (mark-name &optional advance &rest args)
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"Put a mark on the current line.
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Also add the current entry to `guix-list-marked' using its ID and ARGS.
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MARK-NAME is a symbol from `guix-list-mark-alist'.
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If ADVANCE is non-nil, move forward by one line after marking.
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Interactively, put a general mark and move to the next line."
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(interactive '(general t))
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(let ((id (guix-list-current-id)))
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(if (eq mark-name 'empty)
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(setq guix-list-marked (assq-delete-all id guix-list-marked))
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(let ((assoc (assq id guix-list-marked))
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(val (cons mark-name args)))
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(if assoc
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(setcdr assoc val)
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(push (cons id val) guix-list-marked)))))
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(tabulated-list-put-tag (guix-list-get-mark-string mark-name)
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advance))
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(defun guix-list-mark-all (mark-name)
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"Mark all lines with MARK-NAME mark.
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MARK-NAME is a symbol from `guix-list-mark-alist'.
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Interactively, put a general mark on all lines."
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(interactive '(general))
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(guix-list-for-each-line #'guix-list-mark mark-name))
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(defun guix-list-unmark ()
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"Unmark the current line and move to the next line."
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(interactive)
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(guix-list-mark 'empty t))
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(defun guix-list-unmark-backward ()
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"Move up one line and unmark it."
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(interactive)
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(forward-line -1)
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(guix-list-mark 'empty))
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(defun guix-list-unmark-all ()
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"Unmark all lines."
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(interactive)
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(guix-list-mark-all 'empty))
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(defun guix-list-restore-marks ()
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"Put marks according to `guix-list-mark-alist'."
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(guix-list-for-each-line
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(lambda ()
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(let ((mark-name (car (guix-get-key-val guix-list-marked
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(guix-list-current-id)))))
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(tabulated-list-put-tag
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(guix-list-get-mark-string (or mark-name 'empty)))))))
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(defun guix-list-sort (&optional n)
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"Sort guix list entries by the column at point.
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With a numeric prefix argument N, sort the Nth column.
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Same as `tabulated-list-sort', but also restore marks after sorting."
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(interactive "P")
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(tabulated-list-sort n)
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(guix-list-restore-marks))
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(defvar guix-list-mode-map
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(let ((map (make-sparse-keymap)))
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(set-keymap-parent map tabulated-list-mode-map)
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(define-key map (kbd "m") 'guix-list-mark)
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(define-key map (kbd "*") 'guix-list-mark)
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(define-key map (kbd "M") 'guix-list-mark-all)
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(define-key map (kbd "u") 'guix-list-unmark)
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(define-key map (kbd "U") 'guix-list-unmark-all)
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(define-key map (kbd "DEL") 'guix-list-unmark-backward)
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(define-key map [remap tabulated-list-sort] 'guix-list-sort)
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map)
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"Parent keymap for list buffers.")
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(define-derived-mode guix-list-mode tabulated-list-mode "Guix-List"
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"Parent mode for displaying information in list buffers."
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(setq tabulated-list-padding 2))
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(defmacro guix-list-define-entry-type (entry-type &rest args)
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"Define common stuff for displaying ENTRY-TYPE entries in list buffers.
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Remaining argument (ARGS) should have a form [KEYWORD VALUE] ... The
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following keywords are available:
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- `:sort-key' - default sort key for the tabulated list buffer.
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- `:invert-sort' - if non-nil, invert initial sort.
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- `:marks' - default value for the defined
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`guix-ENTRY-TYPE-mark-alist' variable.
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This macro defines the following functions:
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- `guix-ENTRY-TYPE-describe' - display marked entries in info buffer.
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- `guix-ENTRY-TYPE-mark-MARK-NAME' functions for each mark
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specified in `:marks' argument."
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(let* ((entry-type-str (symbol-name entry-type))
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(entry-str (concat entry-type-str " entries"))
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(prefix (concat "guix-" entry-type-str "-list"))
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(mode-str (concat prefix "-mode"))
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(init-fun (intern (concat prefix "-mode-initialize")))
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(describe-fun (intern (concat prefix "-describe")))
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(marks-var (intern (concat prefix "-mark-alist")))
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(marks-val nil)
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(sort-key nil)
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(invert-sort nil))
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;; Process the keyword args.
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(while (keywordp (car args))
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(pcase (pop args)
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(`:sort-key (setq sort-key (pop args)))
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(`:invert-sort (setq invert-sort (pop args)))
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(`:marks (setq marks-val (pop args)))
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(_ (pop args))))
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`(progn
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(defvar ,marks-var ',marks-val
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,(concat "Alist of additional marks for `" mode-str "'.\n"
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|
"Marks from this list are added to `guix-list-mark-alist'."))
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,@(mapcar (lambda (mark-spec)
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(let* ((mark-name (car mark-spec))
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|
(mark-name-str (symbol-name mark-name)))
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`(defun ,(intern (concat prefix "-mark-" mark-name-str "-simple")) ()
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,(concat "Put '" mark-name-str "' mark and move to the next line.\n"
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|
"Also add the current entry to `guix-list-marked'.")
|
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|
|
(interactive)
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|
(guix-list-mark ',mark-name t))))
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|
marks-val)
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(defun ,describe-fun (&optional arg)
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|
,(concat "Describe " entry-str " marked with a general mark.\n"
|
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|
|
"If no entry is marked, describe the current " entry-type-str ".\n"
|
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|
|
"With prefix (if ARG is non-nil), describe the " entry-str "\n"
|
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|
|
"marked with any mark.")
|
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|
(interactive "P")
|
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|
|
(let* ((ids (or (apply #'guix-list-get-marked-id-list
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|
|
(unless arg '(general)))
|
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|
|
(list (guix-list-current-id))))
|
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|
|
(count (length ids)))
|
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|
|
(when (or (<= count guix-list-describe-warning-count)
|
|
|
|
|
(y-or-n-p (format "Do you really want to describe %d entries? "
|
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|
|
count)))
|
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|
|
(,(intern (concat "guix-" entry-type-str "-info-get-show"))
|
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|
|
'id ids))))
|
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|
|
(defun ,init-fun ()
|
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|
|
,(concat "Initial settings for `" mode-str "'.")
|
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|
|
,(when sort-key
|
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|
|
|
`(setq tabulated-list-sort-key
|
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|
|
|
(guix-list-get-sort-key
|
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|
|
|
',entry-type ',sort-key ,invert-sort)))
|
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|
|
(setq tabulated-list-format
|
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|
|
(guix-list-get-list-format ',entry-type))
|
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|
|
(setq-local guix-list-mark-alist
|
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|
|
|
(append guix-list-mark-alist ,marks-var))
|
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|
|
|
(tabulated-list-init-header)))))
|
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|
|
(put 'guix-list-define-entry-type 'lisp-indent-function 'defun)
|
|
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|
|
;;; Displaying packages
|
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|
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|
|
(guix-define-buffer-type list package)
|
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|
|
|
|
|
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|
|
(guix-list-define-entry-type package
|
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|
|
|
:sort-key name
|
|
|
|
|
:marks ((install . ?I)
|
|
|
|
|
(upgrade . ?U)
|
|
|
|
|
(delete . ?D)))
|
|
|
|
|
|
2014-09-06 10:08:42 +02:00
|
|
|
|
(defface guix-package-list-installed
|
|
|
|
|
'((t :inherit guix-package-info-installed-outputs))
|
|
|
|
|
"Face used if there are installed outputs for the current package."
|
|
|
|
|
:group 'guix-package-list)
|
|
|
|
|
|
2014-08-27 14:44:17 +02:00
|
|
|
|
(defface guix-package-list-obsolete
|
|
|
|
|
'((t :inherit guix-package-info-obsolete))
|
|
|
|
|
"Face used if a package is obsolete."
|
|
|
|
|
:group 'guix-package-list)
|
|
|
|
|
|
|
|
|
|
(defcustom guix-package-list-generation-marking-enabled nil
|
|
|
|
|
"If non-nil, allow putting marks in a list with 'generation packages'.
|
|
|
|
|
|
|
|
|
|
By default this is disabled, because it may be confusing. For
|
|
|
|
|
example a package is installed in some generation, so a user can
|
|
|
|
|
mark it for deletion in the list of packages from this
|
|
|
|
|
generation, but the package may not be installed in the latest
|
|
|
|
|
generation, so actually it cannot be deleted.
|
|
|
|
|
|
|
|
|
|
If you managed to understand the explanation above or if you
|
|
|
|
|
really know what you do or if you just don't care, you can set
|
|
|
|
|
this variable to t. It should not do much harm anyway (most
|
|
|
|
|
likely)."
|
|
|
|
|
:type 'boolean
|
|
|
|
|
:group 'guix-package-list)
|
|
|
|
|
|
|
|
|
|
(let ((map guix-package-list-mode-map))
|
|
|
|
|
(define-key map (kbd "RET") 'guix-package-list-describe)
|
|
|
|
|
(define-key map (kbd "x") 'guix-package-list-execute)
|
|
|
|
|
(define-key map (kbd "i") 'guix-package-list-mark-install)
|
|
|
|
|
(define-key map (kbd "^") 'guix-package-list-mark-upgrade)
|
|
|
|
|
(define-key map (kbd "d") 'guix-package-list-mark-delete))
|
|
|
|
|
|
|
|
|
|
(defun guix-package-list-get-name (name entry)
|
|
|
|
|
"Return NAME of the package ENTRY.
|
2014-09-06 10:08:42 +02:00
|
|
|
|
Colorize it with `guix-package-list-installed' or
|
|
|
|
|
`guix-package-list-obsolete' if needed."
|
2014-08-27 14:44:17 +02:00
|
|
|
|
(guix-get-string name
|
2014-09-06 10:08:42 +02:00
|
|
|
|
(cond ((guix-get-key-val entry 'obsolete)
|
|
|
|
|
'guix-package-list-obsolete)
|
|
|
|
|
((guix-get-key-val entry 'installed)
|
|
|
|
|
'guix-package-list-installed))))
|
2014-08-27 14:44:17 +02:00
|
|
|
|
|
|
|
|
|
(defun guix-package-list-get-installed-outputs (installed &optional _)
|
|
|
|
|
"Return string with outputs from INSTALLED entries."
|
|
|
|
|
(guix-get-string
|
|
|
|
|
(mapcar (lambda (entry)
|
|
|
|
|
(guix-get-key-val entry 'output))
|
|
|
|
|
installed)))
|
|
|
|
|
|
|
|
|
|
(defun guix-package-list-marking-check ()
|
|
|
|
|
"Signal an error if marking is disabled for the current buffer."
|
|
|
|
|
(when (and (not guix-package-list-generation-marking-enabled)
|
|
|
|
|
(derived-mode-p 'guix-package-list-mode)
|
|
|
|
|
(eq guix-search-type 'generation))
|
|
|
|
|
(error "Action marks are disabled for lists of 'generation packages'")))
|
|
|
|
|
|
|
|
|
|
(defun guix-package-list-mark-install (&optional arg)
|
|
|
|
|
"Mark the current package for installation and move to the next line.
|
|
|
|
|
With ARG, prompt for the outputs to install (several outputs may
|
|
|
|
|
be separated with \",\")."
|
|
|
|
|
(interactive "P")
|
|
|
|
|
(guix-package-list-marking-check)
|
|
|
|
|
(let* ((entry (guix-list-current-entry))
|
|
|
|
|
(available (guix-get-key-val entry 'outputs))
|
|
|
|
|
(installed (guix-get-installed-outputs entry))
|
|
|
|
|
(to-install (if arg
|
|
|
|
|
(guix-completing-read-multiple
|
|
|
|
|
"Output(s) to install: " available nil t)
|
|
|
|
|
'("out")))
|
|
|
|
|
(to-install (cl-set-difference to-install installed
|
|
|
|
|
:test #'string=)))
|
|
|
|
|
(if to-install
|
|
|
|
|
(apply #'guix-list-mark 'install t to-install)
|
|
|
|
|
(user-error "This package is already installed"))))
|
|
|
|
|
|
|
|
|
|
(defun guix-package-list-mark-delete (&optional arg)
|
|
|
|
|
"Mark the current package for deletion and move to the next line.
|
|
|
|
|
With ARG, prompt for the outputs to delete (several outputs may
|
|
|
|
|
be separated with \",\")."
|
|
|
|
|
(interactive "P")
|
|
|
|
|
(guix-package-list-marking-check)
|
|
|
|
|
(let* ((entry (guix-list-current-entry))
|
|
|
|
|
(installed (guix-get-installed-outputs entry)))
|
|
|
|
|
(or installed
|
|
|
|
|
(user-error "This package is not installed"))
|
|
|
|
|
(let ((to-delete (when arg
|
|
|
|
|
(guix-completing-read-multiple
|
|
|
|
|
"Output(s) to delete: " installed nil t))))
|
|
|
|
|
(if to-delete
|
|
|
|
|
(apply #'guix-list-mark 'delete t to-delete)
|
|
|
|
|
(guix-package-list-mark-delete-simple)))))
|
|
|
|
|
|
|
|
|
|
(defun guix-package-list-mark-upgrade ()
|
|
|
|
|
"Mark the current package for upgrading and move to the next line."
|
|
|
|
|
(interactive)
|
|
|
|
|
(guix-package-list-marking-check)
|
|
|
|
|
(let ((entry (guix-list-current-entry)))
|
|
|
|
|
(or (guix-get-installed-outputs entry)
|
|
|
|
|
(user-error "This package is not installed"))
|
|
|
|
|
(when (or (guix-get-key-val entry 'obsolete)
|
|
|
|
|
(y-or-n-p "This package is not obsolete. Try to upgrade it anyway? "))
|
|
|
|
|
(guix-package-list-mark-upgrade-simple))))
|
|
|
|
|
|
|
|
|
|
(defun guix-package-list-execute ()
|
|
|
|
|
"Perform actions on the marked packages."
|
|
|
|
|
(interactive)
|
|
|
|
|
(let ((actions (delq nil
|
|
|
|
|
(mapcar #'guix-package-list-make-action
|
|
|
|
|
'(install delete upgrade)))))
|
|
|
|
|
(if actions
|
|
|
|
|
(apply #'guix-process-package-actions actions)
|
|
|
|
|
(user-error "No operations specified"))))
|
|
|
|
|
|
|
|
|
|
(defun guix-package-list-make-action (action-type)
|
|
|
|
|
"Return action specification for the packages marked with ACTION-TYPE.
|
|
|
|
|
Return nil, if there are no packages marked with ACTION-TYPE.
|
|
|
|
|
The specification is suitable for `guix-process-package-actions'."
|
|
|
|
|
(let ((specs (guix-list-get-marked-args action-type)))
|
|
|
|
|
(and specs (cons action-type specs))))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
;;; Displaying generations
|
|
|
|
|
|
|
|
|
|
(guix-define-buffer-type list generation)
|
|
|
|
|
|
|
|
|
|
(guix-list-define-entry-type generation
|
|
|
|
|
:sort-key number
|
|
|
|
|
:invert-sort t
|
|
|
|
|
:marks ((delete . ?D)))
|
|
|
|
|
|
|
|
|
|
(let ((map guix-generation-list-mode-map))
|
|
|
|
|
(define-key map (kbd "RET") 'guix-generation-list-show-packages)
|
|
|
|
|
(define-key map (kbd "i") 'guix-generation-list-describe)
|
|
|
|
|
(define-key map (kbd "d") 'guix-generation-list-mark-delete-simple))
|
|
|
|
|
|
|
|
|
|
(defun guix-generation-list-show-packages ()
|
|
|
|
|
"List installed packages for the generation at point."
|
|
|
|
|
(interactive)
|
|
|
|
|
(guix-package-list-get-show 'generation (guix-list-current-id)))
|
|
|
|
|
|
|
|
|
|
(provide 'guix-list)
|
|
|
|
|
|
|
|
|
|
;;; guix-list.el ends here
|