emacs: Generalize buffer naming.

* emacs/guix-base.el (guix-buffer-name): New procedure.
  (guix-buffer-define-interface): Make ':buffer-name' a required keyword.
  (guix-update-after-operation, guix-buffer-name-function)
  (guix-buffer-name-simple, guix-buffer-name-default, guix-buffer-name)
  (guix-buffer-p, guix-buffers, guix-update-buffer)
  (guix-update-buffers-maybe-after-operation): Adjust, move and rename to...
* emacs/guix-ui.el (guix-ui-update-after-operation)
  (guix-ui-buffer-name-function, guix-ui-buffer-name-simple)
  (guix-ui-buffer-name-default, guix-ui-buffer-name)
  (guix-ui-buffer?, guix-ui-buffers, guix-ui-update-buffer)
  (guix-ui-update-buffers-after-operation): ... this.
  (guix-ui-define-interface): Generate
  'guix-ENTRY-TYPE-BUFFER-TYPE-buffer-name' procedure and pass it as
  ':buffer-name' argument.
  (guix-ui): New custom group.
* emacs/guix-info.el: Specify ':buffer-name' for the defined interfaces.
* emacs/guix-list.el: Likewise.
* doc/emacs.texi (Emacs Appearance): Adjust accordingly.
master
Alex Kost 2015-11-23 16:41:58 +03:00
parent 7171d824d7
commit 8bff0c796e
5 changed files with 147 additions and 121 deletions

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@ -414,7 +414,7 @@ changed with the following variables:
By default, the name of a profile is also displayed in a ``list'' or
``info'' buffer name. To change this behavior, use
@code{guix-buffer-name-function} variable.
@code{guix-ui-buffer-name-function} variable.
For example, if you want to display all types of results in a single
buffer (in such case you will probably use a history (@kbd{l}/@kbd{r})
@ -428,8 +428,7 @@ extensively), you may do it like this:
guix-generation-list-buffer-name name
guix-package-info-buffer-name name
guix-output-info-buffer-name name
guix-generation-info-buffer-name name
guix-buffer-name-function #'guix-buffer-name-simple))
guix-generation-info-buffer-name name))
@end example
@node Emacs Keymaps

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@ -33,6 +33,7 @@
(require 'guix-entry)
(require 'guix-guile)
(require 'guix-utils)
(require 'guix-ui)
(require 'guix-history)
(require 'guix-messages)
@ -142,73 +143,7 @@ For the meaning of location, see `guix-find-location'."
#'string<))
;;; Buffers and auto updating.
(defcustom guix-update-after-operation 'current
"Define what information to update after executing an operation.
After successful executing an operation in the Guix REPL (for
example after installing a package), information 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)
(defcustom guix-buffer-name-function #'guix-buffer-name-default
"Function used to define name of a buffer for displaying information.
The function is called with 4 arguments: PROFILE, BUFFER-TYPE,
ENTRY-TYPE, SEARCH-TYPE. See `guix-get-entries' for the meaning
of the arguments."
:type '(choice (function-item guix-buffer-name-default)
(function-item guix-buffer-name-simple)
(function :tag "Other function"))
:group 'guix)
(defun guix-buffer-name-simple (_profile buffer-type entry-type
&optional _search-type)
"Return name of a buffer used for displaying information.
The name is defined by `guix-ENTRY-TYPE-BUFFER-TYPE-buffer-name'
variable."
(symbol-value
(guix-get-symbol "buffer-name" buffer-type entry-type)))
(defun guix-buffer-name-default (profile buffer-type entry-type
&optional _search-type)
"Return name of a buffer used for displaying information.
The name is almost the same as the one defined by
`guix-buffer-name-simple' except the PROFILE name is added to it."
(let ((simple-name (guix-buffer-name-simple
profile buffer-type entry-type))
(profile-name (file-name-base (directory-file-name profile)))
(re (rx string-start
(group (? "*"))
(group (*? any))
(group (? "*"))
string-end)))
(or (string-match re simple-name)
(error "Unexpected error in defining guix buffer name"))
(let ((first* (match-string 1 simple-name))
(name-body (match-string 2 simple-name))
(last* (match-string 3 simple-name)))
;; Handle the case when buffer name is wrapped by '*'.
(if (and (string= "*" first*)
(string= "*" last*))
(concat "*" name-body ": " profile-name "*")
(concat simple-name ": " profile-name)))))
(defun guix-buffer-name (profile buffer-type entry-type search-type)
"Return name of a buffer used for displaying information.
See `guix-buffer-name-function' for details."
(let ((fun (if (functionp guix-buffer-name-function)
guix-buffer-name-function
#'guix-buffer-name-default)))
(funcall fun profile buffer-type entry-type search-type)))
;;; Buffers
(defun guix-switch-to-buffer (buffer)
"Switch to a 'list' or 'info' BUFFER."
@ -216,43 +151,6 @@ See `guix-buffer-name-function' for details."
'((display-buffer-reuse-window
display-buffer-same-window))))
(defun guix-buffer-p (&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-buffers (&optional modes)
"Return 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-buffer-p buf modes))
(buffer-list)))
(defun guix-update-buffer (buffer)
"Update information in a 'list' or 'info' BUFFER."
(with-current-buffer buffer
(guix-buffer-revert nil t)))
(defun guix-update-buffers-maybe-after-operation ()
"Update buffers after Guix operation if needed.
See `guix-update-after-operation' for details."
(let ((to-update
(and guix-operation-buffer
(cl-case guix-update-after-operation
(current (and (buffer-live-p guix-operation-buffer)
(guix-buffer-p guix-operation-buffer)
(list guix-operation-buffer)))
(all (guix-buffers))))))
(setq guix-operation-buffer nil)
(mapc #'guix-update-buffer to-update)))
(add-hook 'guix-after-repl-operation-hook
'guix-update-buffers-maybe-after-operation)
;;; Common definitions for buffer types
@ -275,6 +173,14 @@ This alist is filled by `guix-buffer-define-interface' macro.")
param))
(guix-symbol-title param)))
(defun guix-buffer-name (buffer-type entry-type profile)
"Return name of BUFFER-TYPE buffer for displaying ENTRY-TYPE entries."
(let ((str-or-fun (guix-buffer-value buffer-type entry-type
'buffer-name)))
(if (stringp str-or-fun)
str-or-fun
(funcall str-or-fun profile))))
(defun guix-buffer-history-size (buffer-type entry-type)
"Return history size for BUFFER-TYPE/ENTRY-TYPE."
(guix-buffer-value buffer-type entry-type 'history-size))
@ -352,11 +258,13 @@ The following stuff should be defined outside this macro:
- `guix-TYPE-mode-initialize' (optional) - function for
additional mode settings; it is called without arguments.
Optional keywords:
Required keywords:
- `:buffer-name' - default value of the generated
`guix-TYPE-buffer-name' variable.
Optional keywords:
- `:titles' - default value of the generated
`guix-TYPE-titles' variable.
@ -374,7 +282,6 @@ Optional keywords:
(Entry-type-str (capitalize entry-type-str))
(Buffer-type-str (capitalize buffer-type-str))
(entry-str (concat entry-type-str " entries"))
(buffer-str (concat buffer-type-str " buffer"))
(prefix (concat "guix-" entry-type-str "-"
buffer-type-str))
(group (intern prefix))
@ -388,9 +295,7 @@ Optional keywords:
(history-size-var (intern (concat prefix "-history-size")))
(revert-confirm-var (intern (concat prefix "-revert-confirm"))))
(guix-keyword-args-let args
((buffer-name-val :buffer-name
(format "*Guix %s %s*"
Entry-type-str Buffer-type-str))
((buffer-name-val :buffer-name)
(titles-val :titles)
(history-size-val :history-size 20)
(revert-confirm-val :revert-confirm? t)
@ -438,7 +343,8 @@ If non-nil, ask to confirm for reverting `%S' buffer."
:group ',group)
(guix-alist-put!
'((history-size . ,history-size-var)
'((buffer-name . ,buffer-name-var)
(history-size . ,history-size-var)
(revert-confirm . ,revert-confirm-var))
'guix-buffer-data ',buffer-type ',entry-type)
@ -531,8 +437,7 @@ If NO-DISPLAY is non-nil, do not switch to the buffer."
(equal guix-profile profile))
(current-buffer)
(get-buffer-create
(guix-buffer-name profile buffer-type
entry-type search-type)))))
(guix-buffer-name buffer-type entry-type profile)))))
(with-current-buffer buf
(guix-show-entries entries buffer-type entry-type)
(guix-set-vars profile entries buffer-type entry-type
@ -1124,12 +1029,12 @@ The function is called with a single argument - a command line string."
(defun guix-update-buffers-maybe-after-pull ()
"Update buffers depending on `guix-update-after-pull'."
(when guix-update-after-pull
(mapc #'guix-update-buffer
(mapc #'guix-ui-update-buffer
;; No need to update "generation" buffers.
(guix-buffers '(guix-package-list-mode
guix-package-info-mode
guix-output-list-mode
guix-output-info-mode)))
(guix-ui-buffers '(guix-package-list-mode
guix-package-info-mode
guix-output-list-mode
guix-output-info-mode)))
(message "Guix buffers have been updated.")))
;;;###autoload

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@ -471,6 +471,7 @@ After calling each METHOD, a new line is inserted."
;;; Displaying packages
(guix-ui-info-define-interface package
:buffer-name "*Guix Package Info*"
:format '(guix-package-info-insert-heading
ignore
(synopsis ignore (simple guix-package-info-synopsis))
@ -830,6 +831,7 @@ This function is used to hide a \"Download\" button if needed."
;;; Displaying generations
(guix-ui-info-define-interface generation
:buffer-name "*Guix Generation Info*"
:format '((number format guix-generation-info-insert-number)
(prev-number format (format))
(current format guix-generation-info-insert-current)

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@ -517,6 +517,7 @@ See also `guix-list-describe'."
;;; Displaying packages
(guix-ui-list-define-interface package
:buffer-name "*Guix Package List*"
:format '((name guix-package-list-get-name 20 t)
(version nil 10 nil)
(outputs nil 13 t)
@ -803,6 +804,7 @@ See `guix-package-info-type'."
;;; Displaying generations
(guix-ui-list-define-interface generation
:buffer-name "*Guix Generation List*"
:format '((number nil 5 guix-list-sort-numerically-0 :right-align t)
(current guix-generation-list-get-current 10 t)
(time guix-list-get-time 20 t)

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@ -25,8 +25,15 @@
;;; Code:
(require 'cl-lib)
(require 'guix-backend)
(require 'guix-utils)
(defgroup guix-ui nil
"Settings for Guix package management.
This group includes settings for displaying packages, outputs and
generations in 'list' and 'info' buffers."
:group 'guix)
(defvar guix-ui-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "M") 'guix-apply-manifest)
@ -39,6 +46,101 @@
(apply #'guix-get-show-entries
guix-profile 'info guix-entry-type 'id ids))
;;; 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
@ -47,6 +149,12 @@
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
@ -64,10 +172,12 @@ The rest keyword arguments are passed to
(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")))
(definer (intern (format "guix-%s-define-interface"
buffer-type-str))))
(guix-keyword-args-let args
((required-val :required ''(id)))
((buffer-name-val :buffer-name)
(required-val :required ''(id)))
`(progn
(defvar ,mode-map
(let ((map (make-sparse-keymap)))
@ -82,7 +192,15 @@ List of the required '%s' parameters for '%s' buffer.
These parameters are received along with the displayed parameters."
entry-type-str buffer-type-str))
(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))
(,definer ,entry-type
:buffer-name ',buffer-name-fun
,@%foreign-args)))))
(defmacro guix-ui-info-define-interface (entry-type &rest args)