guix-play/emacs/guix-ui.el
Alex Kost 494a62f215 emacs: Add 'guix-ui-read-profile'.
* emacs/guix-ui.el (guix-ui-read-profile): New procedure.
* emacs/guix-ui-package.el (guix-search-by-name)
  (guix-search-by-regexp, guix-installed-packages)
  (guix-obsolete-packages, guix-all-available-packages)
  (guix-newest-available-packages): Use it.
* emacs/guix-ui-generation.el (guix-generations)
  (guix-last-generations, guix-generations-by-time): Use it.
2016-01-02 17:25:35 +03:00

334 lines
12 KiB
EmacsLisp
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

;;; guix-ui.el --- Common code for Guix package management interface -*- lexical-binding: t -*-
;; Copyright © 2014, 2015 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 some general code for 'list'/'info' interfaces for
;; packages and generations.
;;; Code:
(require 'cl-lib)
(require 'guix-backend)
(require 'guix-buffer)
(require 'guix-guile)
(require 'guix-utils)
(require 'guix-messages)
(guix-define-groups ui
:group-doc "\
Settings for 'ui' (Guix package management) buffers.
This group includes settings for displaying packages, outputs and
generations in 'list' and 'info' buffers.")
(defvar guix-ui-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "M") 'guix-apply-manifest)
(define-key map (kbd "C-c C-z") 'guix-switch-to-repl)
map)
"Parent keymap for Guix package/generation buffers.")
(guix-buffer-define-current-args-accessors
"guix-ui-current" "profile" "search-type" "search-values")
(defun guix-ui-read-profile ()
"Return `guix-current-profile' or prompt for it.
This function is intended for using in `interactive' forms."
(if current-prefix-arg
(guix-profile-prompt)
guix-current-profile))
(defun guix-ui-get-entries (profile entry-type search-type search-values
&optional params)
"Receive ENTRY-TYPE entries for PROFILE.
Call an appropriate scheme procedure and return a list of entries.
ENTRY-TYPE should be one of the following symbols: `package',
`output' or `generation'.
SEARCH-TYPE may be one of the following symbols:
- If ENTRY-TYPE is `package' or `output': `id', `name', `regexp',
`all-available', `newest-available', `installed', `obsolete',
`generation'.
- If ENTRY-TYPE is `generation': `id', `last', `all', `time'.
PARAMS is a list of parameters for receiving. If nil, get data
with all available parameters."
(guix-eval-read
(guix-make-guile-expression
'entries
profile params entry-type search-type search-values)))
(defun guix-ui-list-describe (ids)
"Describe 'ui' entries with IDS (list of identifiers)."
(guix-buffer-get-display-entries
'info (guix-buffer-current-entry-type)
(cl-list* (guix-ui-current-profile) 'id ids)
'add))
;;; Buffers and auto updating
(defcustom guix-ui-update-after-operation 'current
"Define what kind of data to update after executing an operation.
After successful executing an operation in the Guix REPL (for
example after installing a package), the data in Guix buffers
will or will not be automatically updated depending on a value of
this variable.
If nil, update nothing (do not revert any buffer).
If `current', update the buffer from which an operation was performed.
If `all', update all Guix buffers (not recommended)."
:type '(choice (const :tag "Do nothing" nil)
(const :tag "Update operation buffer" current)
(const :tag "Update all Guix buffers" all))
:group 'guix-ui)
(defcustom guix-ui-buffer-name-function
#'guix-ui-buffer-name-default
"Function used to define a name of a Guix buffer.
The function is called with 2 arguments: BASE-NAME and PROFILE."
:type '(choice (function-item guix-ui-buffer-name-default)
(function-item guix-ui-buffer-name-simple)
(function :tag "Other function"))
:group 'guix-ui)
(defun guix-ui-buffer-name-simple (base-name &rest _)
"Return BASE-NAME."
base-name)
;; TODO separate '*...*' logic from the real profile appending. Also add
;; another function to return '*Guix ...: /full/path/to/profile*' name.
(defun guix-ui-buffer-name-default (base-name profile)
"Return buffer name by appending BASE-NAME and PROFILE's base file name."
(let ((profile-name (file-name-base (directory-file-name profile)))
(re (rx string-start
(group (? "*"))
(group (*? any))
(group (? "*"))
string-end)))
(or (string-match re base-name)
(error "Unexpected error in defining guix buffer name"))
(let ((first* (match-string 1 base-name))
(name-body (match-string 2 base-name))
(last* (match-string 3 base-name)))
;; Handle the case when buffer name is wrapped by '*'.
(if (and (string= "*" first*)
(string= "*" last*))
(concat "*" name-body ": " profile-name "*")
(concat base-name ": " profile-name)))))
(defun guix-ui-buffer-name (base-name profile)
"Return Guix buffer name based on BASE-NAME and profile.
See `guix-ui-buffer-name-function' for details."
(funcall guix-ui-buffer-name-function
base-name profile))
(defun guix-ui-buffer? (&optional buffer modes)
"Return non-nil if BUFFER mode is derived from any of the MODES.
If BUFFER is nil, check current buffer.
If MODES is nil, use `guix-list-mode' and `guix-info-mode'."
(with-current-buffer (or buffer (current-buffer))
(apply #'derived-mode-p
(or modes '(guix-list-mode guix-info-mode)))))
(defun guix-ui-buffers (&optional modes)
"Return a list of all buffers with major modes derived from MODES.
If MODES is nil, return list of all Guix 'list' and 'info' buffers."
(cl-remove-if-not (lambda (buf)
(guix-ui-buffer? buf modes))
(buffer-list)))
(defun guix-ui-update-buffer (buffer)
"Update data in a 'list' or 'info' BUFFER."
(with-current-buffer buffer
(guix-buffer-revert nil t)))
(defun guix-ui-update-buffers-after-operation ()
"Update buffers after Guix operation if needed.
See `guix-ui-update-after-operation' for details."
(let ((to-update
(and guix-operation-buffer
(cl-case guix-ui-update-after-operation
(current (and (buffer-live-p guix-operation-buffer)
(guix-ui-buffer? guix-operation-buffer)
(list guix-operation-buffer)))
(all (guix-ui-buffers))))))
(setq guix-operation-buffer nil)
(mapc #'guix-ui-update-buffer to-update)))
(add-hook 'guix-after-repl-operation-hook
'guix-ui-update-buffers-after-operation)
;;; Interface definers
(defmacro guix-ui-define-entry-type (entry-type &rest args)
"Define general code for ENTRY-TYPE.
Remaining arguments (ARGS) should have a form [KEYWORD VALUE] ...
The rest keyword arguments are passed to
`guix-define-entry-type' macro."
(declare (indent 1))
`(guix-define-entry-type ,entry-type
:parent-group guix-ui
:parent-faces-group guix-ui-faces
,@args))
(defmacro guix-ui-define-interface (buffer-type entry-type &rest args)
"Define BUFFER-TYPE interface for displaying ENTRY-TYPE entries.
Remaining arguments (ARGS) should have a form [KEYWORD VALUE] ...
In the following description TYPE means ENTRY-TYPE-BUFFER-TYPE.
Required keywords:
- `:buffer-name' - base part of a buffer name. It is used in a
generated `guix-TYPE-buffer-name' function; see
`guix-ui-buffer-name' for details.
Optional keywords:
- `:required' - default value of the generated
`guix-TYPE-required-params' variable.
The rest keyword arguments are passed to
`guix-BUFFER-TYPE-define-interface' macro.
Along with the mentioned definitions, this macro also defines:
- `guix-TYPE-mode-map' - keymap based on `guix-ui-map' and
`guix-BUFFER-TYPE-mode-map'.
- `guix-TYPE-get-entries' - a wrapper around `guix-ui-get-entries'.
- `guix-TYPE-message' - a wrapper around `guix-result-message'."
(declare (indent 2))
(let* ((entry-type-str (symbol-name entry-type))
(buffer-type-str (symbol-name buffer-type))
(prefix (concat "guix-" entry-type-str "-"
buffer-type-str))
(mode-str (concat prefix "-mode"))
(mode-map (intern (concat mode-str "-map")))
(parent-map (intern (format "guix-%s-mode-map"
buffer-type-str)))
(required-var (intern (concat prefix "-required-params")))
(buffer-name-fun (intern (concat prefix "-buffer-name")))
(get-fun (intern (concat prefix "-get-entries")))
(message-fun (intern (concat prefix "-message")))
(displayed-fun (intern (format "guix-%s-displayed-params"
buffer-type-str)))
(definer (intern (format "guix-%s-define-interface"
buffer-type-str))))
(guix-keyword-args-let args
((buffer-name-val :buffer-name)
(required-val :required ''(id)))
`(progn
(defvar ,mode-map
(let ((map (make-sparse-keymap)))
(set-keymap-parent
map (make-composed-keymap ,parent-map guix-ui-map))
map)
,(format "Keymap for `%s' buffers." mode-str))
(defvar ,required-var ,required-val
,(format "\
List of the required '%s' parameters.
These parameters are received by `%S'
along with the displayed parameters.
Do not remove `id' from this list as it is required for
identifying an entry."
entry-type-str get-fun))
(defun ,buffer-name-fun (profile &rest _)
,(format "\
Return a name of '%s' buffer for displaying '%s' entries.
See `guix-ui-buffer-name' for details."
buffer-type-str entry-type-str)
(guix-ui-buffer-name ,buffer-name-val profile))
(defun ,get-fun (profile search-type &rest search-values)
,(format "\
Receive '%s' entries for displaying them in '%s' buffer.
See `guix-ui-get-entries' for details."
entry-type-str buffer-type-str)
(guix-ui-get-entries
profile ',entry-type search-type search-values
(cl-union ,required-var
(,displayed-fun ',entry-type))))
(defun ,message-fun (entries profile search-type
&rest search-values)
,(format "\
Display a message after showing '%s' entries."
entry-type-str)
(guix-result-message
profile entries ',entry-type search-type search-values))
(,definer ,entry-type
:get-entries-function ',get-fun
:message-function ',message-fun
:buffer-name ',buffer-name-fun
,@%foreign-args)))))
(defmacro guix-ui-info-define-interface (entry-type &rest args)
"Define 'info' interface for displaying ENTRY-TYPE entries.
See `guix-ui-define-interface'."
(declare (indent 1))
`(guix-ui-define-interface info ,entry-type
,@args))
(defmacro guix-ui-list-define-interface (entry-type &rest args)
"Define 'list' interface for displaying ENTRY-TYPE entries.
Remaining arguments (ARGS) should have a form [KEYWORD VALUE] ...
Optional keywords:
- `:describe-function' - default value of the generated
`guix-ENTRY-TYPE-list-describe-function' variable (if not
specified, use `guix-ui-list-describe').
The rest keyword arguments are passed to
`guix-ui-define-interface' macro."
(declare (indent 1))
(guix-keyword-args-let args
((describe-val :describe-function))
`(guix-ui-define-interface list ,entry-type
:describe-function ,(or describe-val ''guix-ui-list-describe)
,@args)))
(defvar guix-ui-font-lock-keywords
(eval-when-compile
`((,(rx "(" (group (or "guix-ui-define-entry-type"
"guix-ui-define-interface"
"guix-ui-info-define-interface"
"guix-ui-list-define-interface"))
symbol-end)
. 1))))
(font-lock-add-keywords 'emacs-lisp-mode guix-ui-font-lock-keywords)
(provide 'guix-ui)
;;; guix-ui.el ends here