--- /dev/null
+;;; riece-addon.el --- add-on management -*- lexical-binding: t -*-
+;; Copyright (C) 1998-2004 Daiki Ueno
+
+;; Author: Daiki Ueno <ueno@unixuser.org>
+;; Created: 1998-09-28
+;; Keywords: IRC, riece
+
+;; This file is part of Riece.
+
+;; This program 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 2, or (at your option)
+;; any later version.
+
+;; This program 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 GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
+
+;;; Code:
+
+(require 'font-lock)
+(require 'riece-options)
+(require 'riece-compat)
+(require 'riece-misc)
+(require 'riece-addon-modules)
+(require 'riece-mcat)
+
+(defgroup riece-addon-list nil
+ "Add-on listing."
+ :tag "Addon list"
+ :prefix "riece-addon-list-"
+ :group 'riece)
+
+(defgroup riece-addon-list-faces nil
+ "Faces for riece-addon-list-mode."
+ :tag "Faces"
+ :prefix "riece-addon-list-"
+ :group 'riece-addon-list)
+
+(defface riece-addon-list-enabled-face
+ '((((class color) (background dark))
+ (:foreground "PaleTurquoise" :bold t))
+ (t
+ (:bold t)))
+ "Face used for displaying the enabled addon."
+ :group 'riece-addon-list-faces)
+(defvar riece-addon-list-enabled-face 'riece-addon-list-enabled-face)
+
+(defface riece-addon-list-disabled-face
+ '((((class color) (background dark))
+ (:foreground "PaleTurquoise" :italic t))
+ (t
+ ()))
+ "Face used for displaying the disabled addon."
+ :group 'riece-addon-list-faces)
+(defvar riece-addon-list-disabled-face 'riece-addon-list-disabled-face)
+
+(defface riece-addon-list-uninstalled-face
+ '((t
+ (:italic t)))
+ "Face used for displaying the uninstalled addon."
+ :group 'riece-addon-list-faces)
+(defvar riece-addon-list-uninstalled-face 'riece-addon-list-uninstalled-face)
+
+(defface riece-addon-list-unloaded-face
+ '((t
+ (:italic t :inverse-video t)))
+ "Face used for displaying the unloaded addon."
+ :group 'riece-addon-list-faces)
+(defvar riece-addon-list-unloaded-face 'riece-addon-list-unloaded-face)
+
+(defface riece-addon-list-description-face
+ '((((class color)
+ (background dark))
+ (:foreground "lightyellow"))
+ (((class color)
+ (background light))
+ (:foreground "blue4"))
+ (t
+ ()))
+ "Face used for displaying the description addon."
+ :group 'riece-addon-list-faces)
+(defvar riece-addon-list-description-face 'riece-addon-list-description-face)
+
+(defcustom riece-addon-list-mark-face-alist
+ '((?+ . riece-addon-list-enabled-face)
+ (?- . riece-addon-list-disabled-face)
+ (?? . riece-addon-list-uninstalled-face)
+ (? . riece-addon-list-unloaded-face))
+ "An alist mapping marks on riece-addon-list-buffer to faces."
+ :type '(repeat (cons character symbol))
+ :group 'riece-addon-list)
+
+(defcustom riece-addon-list-font-lock-keywords
+ '(("^\\([-+? ] \\S-+\\)\\s-+\\(.*\\)"
+ (1 (cdr (assq (aref (match-string 1) 0)
+ riece-addon-list-mark-face-alist)))
+ (2 riece-addon-list-description-face)))
+ "Default expressions to addon in riece-addon-list-mode."
+ :type '(repeat (list string))
+ :group 'riece-addon-list)
+
+(eval-when-compile
+ (autoload 'riece-command-save-variables "riece-commands"))
+
+(defvar riece-addon-list-mode-map
+ (let ((keymap (make-sparse-keymap)))
+ (define-key keymap "+" 'riece-command-enable-addon)
+ (define-key keymap "-" 'riece-command-disable-addon)
+ (define-key keymap "i" 'riece-command-insinuate-addon)
+ (define-key keymap "u" 'riece-command-uninstall-addon)
+ (define-key keymap "U" 'riece-command-unload-addon)
+ (define-key keymap "n" 'next-line)
+ (define-key keymap "p" 'previous-line)
+ (define-key keymap " " 'scroll-up)
+ (define-key keymap [delete] 'scroll-down)
+ (define-key keymap "q" 'bury-buffer)
+ (define-key keymap "s" 'riece-command-save-variables)
+ keymap))
+
+(defun riece-load-and-build-addon-dependencies (addons)
+ (let ((load-path (cons riece-addon-directory load-path))
+ dependencies)
+ (while addons
+ (require (car addons)) ;error will be reported here
+ (let* ((requires-function
+ (intern-soft
+ (concat (symbol-name (car addons)) "-requires")))
+ (requires
+ (if (and requires-function
+ (fboundp requires-function))
+ (funcall requires-function)))
+ (pointer requires)
+ entry)
+ ;; Increment succs' pred count.
+ (if (setq entry (assq (car addons) dependencies))
+ (setcar (cdr entry) (+ (length requires) (nth 1 entry)))
+ (setq dependencies (cons (list (car addons) (length requires))
+ dependencies)))
+ ;; Merge pred's succs.
+ (while pointer
+ (if (setq entry (assq (car pointer) dependencies))
+ (setcdr (cdr entry) (cons (car addons) (nthcdr 2 entry)))
+ (setq dependencies (cons (list (car pointer) 0 (car addons))
+ dependencies)))
+ (setq pointer (cdr pointer))))
+ (setq addons (cdr addons)))
+ dependencies))
+
+(defun riece-sort-addon-dependencies (dependencies)
+ (let ((pointer dependencies)
+ addons queue)
+ (while pointer
+ (if (zerop (nth 1 (car pointer)))
+ (setq dependencies (delq (car pointer) dependencies)
+ queue (cons (car pointer) queue)))
+ (setq pointer (cdr pointer)))
+ (while queue
+ (setq addons (cons (cons (car (car queue)) (nthcdr 2 (car queue)))
+ addons)
+ pointer (nthcdr 2 (car queue)))
+ (while pointer
+ (let* ((entry (assq (car pointer) dependencies))
+ (count (1- (nth 1 entry))))
+ (if (zerop count)
+ (setq dependencies (delq entry dependencies)
+ queue (nconc queue (list entry)))
+ (setcar (cdr entry) count)))
+ (setq pointer (cdr pointer)))
+ (setq queue (cdr queue)))
+ (if dependencies
+ (error "Circular add-on dependency found: %S" dependencies))
+ (nreverse addons)))
+
+(defun riece-resolve-addons (addons)
+ ;; Add files in riece-addon-directory to addons.
+ (if (file-directory-p riece-addon-directory)
+ (setq addons (nconc
+ addons
+ (mapcar
+ (lambda (name)
+ (unless (file-directory-p
+ (expand-file-name name riece-addon-directory))
+ (intern (file-name-sans-extension name))))
+ (directory-files riece-addon-directory nil "\\`[^.]")))))
+ ;; Sort & uniquify.
+ (setq addons (sort addons (lambda (symbol1 symbol2)
+ (string-lessp (symbol-name symbol1)
+ (symbol-name symbol2)))))
+ (let ((pointer addons))
+ (while pointer
+ (if (memq (car pointer) (cdr pointer))
+ (setcar pointer nil))
+ (setq pointer (cdr pointer)))
+ (delq nil addons))
+ ;; Build & resolve dependencies.
+ (riece-sort-addon-dependencies
+ (riece-load-and-build-addon-dependencies addons)))
+
+(defun riece-insinuate-addon-1 (addon verbose)
+ (if (get addon 'riece-addon-insinuated)
+ (if verbose
+ (message (riece-mcat "Add-on %S is already insinuated") addon))
+ (require addon)
+ (funcall (intern (concat (symbol-name addon) "-insinuate")))
+ (put addon 'riece-addon-insinuated t)
+ (if verbose
+ (message (riece-mcat "Add-on %S is insinuated") addon))
+ (unless (get addon 'riece-addon-default-disabled)
+ (riece-enable-addon addon t))))
+
+(defun riece-insinuate-addon (addon &optional verbose)
+ (unless (assq addon riece-addon-dependencies)
+ (setq riece-addons (cons addon riece-addons)
+ riece-save-variables-are-dirty t
+ riece-addon-dependencies
+ (riece-resolve-addons
+ (cons addon (mapcar #'car riece-addon-dependencies)))))
+ (let ((pointer riece-addon-dependencies)
+ addons)
+ (while pointer
+ (unless (get (car (car pointer)) 'riece-addon-insinuated)
+ (setq addons (cons (car (car pointer)) addons)))
+ (if (eq (car (car pointer)) addon)
+ (setq pointer nil)
+ (setq pointer (cdr pointer))))
+ (setq addons (nreverse addons))
+ (if (and (> (length addons) 1)
+ (eq verbose 'ask)
+ (not (y-or-n-p (format (riece-mcat
+ "%s will be insinuated. Continue? ")
+ (mapconcat #'symbol-name addons ", ")))))
+ (error "Insinuate operation was cancelled"))
+ (while addons
+ (riece-insinuate-addon-1 (car addons) verbose)
+ (setq addons (cdr addons)))))
+
+(defun riece-uninstall-addon (addon &optional verbose)
+ (if (not (get addon 'riece-addon-insinuated))
+ (if verbose
+ (message (riece-mcat "Add-on %S is not insinuated") addon))
+ (let ((entry (assq addon riece-addon-dependencies))
+ (uninstall (intern-soft (concat (symbol-name addon) "-uninstall"))))
+ (if entry
+ (if (cdr entry)
+ (if (= (length (cdr entry)) 1)
+ (error "%S depends on %S" (car (cdr entry)) addon)
+ (error "%s depend on %S"
+ (mapconcat #'symbol-name (cdr entry) ", ")
+ addon))
+ (riece-disable-addon addon verbose)
+ (if (and uninstall
+ (fboundp uninstall))
+ (funcall uninstall))
+ (setq riece-addon-dependencies
+ (delq entry riece-addon-dependencies))
+ (put addon 'riece-addon-insinuated nil)
+ (setq riece-addons (delq addon riece-addons)
+ riece-save-variables-are-dirty t
+ riece-addon-dependencies
+ (riece-resolve-addons
+ (delq addon (mapcar #'car riece-addon-dependencies))))))
+ (if verbose
+ (message (riece-mcat "Add-on %S is uninstalled") addon)))))
+
+(defun riece-enable-addon (addon &optional verbose)
+ (unless (get addon 'riece-addon-insinuated)
+ (error "Add-on %S is not insinuated" addon))
+ (if (get addon 'riece-addon-enabled)
+ (if verbose
+ (message (riece-mcat "Add-on %S is already enabled") addon))
+ (let ((enable (intern-soft (concat (symbol-name addon) "-enable"))))
+ (if (and enable
+ (fboundp enable))
+ (funcall enable))
+ (put addon 'riece-addon-enabled t)
+ (if verbose
+ (message (riece-mcat "Add-on %S enabled") addon)))))
+
+(defun riece-disable-addon (addon &optional verbose)
+ (unless (get addon 'riece-addon-insinuated)
+ (error "Add-on %S is not insinuated" addon))
+ (if (not (get addon 'riece-addon-enabled))
+ (if verbose
+ (message (riece-mcat "Add-on %S is already disabled") addon))
+ (let ((disable (intern-soft (concat (symbol-name addon) "-disable"))))
+ (if (and disable
+ (fboundp disable))
+ (funcall disable))
+ (put addon 'riece-addon-enabled nil)
+ (if verbose
+ (message (riece-mcat "Add-on %S disabled") addon)))))
+
+(put 'riece-addon-list-mode 'font-lock-defaults
+ '(riece-addon-list-font-lock-keywords t))
+
+(defun riece-addon-list-mode ()
+ "Major mode for displaying addon list.
+All normal editing commands are turned off."
+ (kill-all-local-variables)
+ (buffer-disable-undo)
+ (setq major-mode 'riece-addon-list-mode
+ mode-name "AddOns"
+ mode-line-buffer-identification
+ (riece-mode-line-buffer-identification '("Riece: %12b"))
+ truncate-lines t
+ buffer-read-only t)
+ (use-local-map riece-addon-list-mode-map)
+ (make-local-variable 'font-lock-defaults)
+ (setq font-lock-defaults '(riece-addon-list-font-lock-keywords t))
+ ;; In XEmacs, auto-initialization of font-lock is not effective
+ ;; if buffer-file-name is not set.
+ (font-lock-set-defaults)
+ (run-hooks 'riece-addon-list-mode-hook))
+
+(defun riece-command-list-addons ()
+ (interactive)
+ (set-buffer (riece-get-buffer-create "*AddOn*" 'riece-addon-list-mode))
+ (riece-addon-list-mode)
+ (let ((inhibit-read-only t)
+ buffer-read-only
+ (pointer riece-addon-dependencies)
+ module-description-alist
+ description point longest)
+ (while pointer
+ (setq description (intern-soft (concat (symbol-name (car (car pointer)))
+ "-description"))
+ module-description-alist
+ (cons (cons (car (car pointer))
+ (if (and description
+ (boundp description))
+ (riece-mcat (symbol-value description))
+ (riece-mcat "(no description)")))
+ module-description-alist)
+ pointer (cdr pointer)))
+ (setq pointer riece-addon-modules)
+ (while pointer
+ (unless (assq (car (car pointer))
+ module-description-alist)
+ (setq module-description-alist
+ (cons (cons (car (car pointer)) (riece-mcat (cdr (car pointer))))
+ module-description-alist)))
+ (setq pointer (cdr pointer)))
+ (erase-buffer)
+ (riece-kill-all-overlays)
+ (setq pointer module-description-alist
+ longest "")
+ (while pointer
+ (if (> (length (symbol-name (car (car pointer))))
+ (length longest))
+ (setq longest (symbol-name (car (car pointer)))))
+ (setq pointer (cdr pointer)))
+ (setq pointer (sort module-description-alist
+ (lambda (entry1 entry2)
+ (string-lessp (symbol-name (car entry1))
+ (symbol-name (car entry2))))))
+ (while pointer
+ (setq point (point))
+ (insert (format (format "%%c %%-%dS %%s\n" (length longest))
+ (if (not (featurep (car (car pointer))))
+ ?
+ (if (not (get (car (car pointer))
+ 'riece-addon-insinuated))
+ ??
+ (if (get (car (car pointer)) 'riece-addon-enabled)
+ ?+
+ ?-)))
+ (car (car pointer))
+ (cdr (car pointer))))
+ (put-text-property point (point) 'riece-addon (car (car pointer)))
+ (setq pointer (cdr pointer)))
+ (insert (riece-mcat "
+Symbols in the leftmost column:
+
+ + The add-on is enabled.
+ - The add-on is disabled.
+ ? The add-on is not insinuated.
+ The add-on is not loaded.
+"))
+ (insert (substitute-command-keys (riece-mcat "
+Useful keys:
+
+ `\\[riece-command-enable-addon]' to enable the current add-on.
+ `\\[riece-command-disable-addon]' to disable the current add-on.
+ `\\[riece-command-insinuate-addon]' to insinuate the current add-on.
+ `\\[riece-command-uninstall-addon]' to uninstall the current add-on.
+ `\\[riece-command-unload-addon]' to unload the current add-on.
+ `\\[riece-command-save-variables]' to save the current setting.
+")))
+ (goto-char (point-min))
+ (pop-to-buffer (current-buffer))
+ (delete-other-windows)))
+
+(defun riece-addon-list-set-point (addon)
+ (let ((point (point-min)))
+ (while (and (not (eq (get-text-property point 'riece-addon) addon))
+ (setq point (next-single-property-change point
+ 'riece-addon))))
+ (if point
+ (goto-char point))))
+
+(defun riece-command-enable-addon (addon)
+ (interactive
+ (list
+ (or (if (eq major-mode 'riece-addon-list-mode)
+ (get-text-property (point) 'riece-addon))
+ (intern-soft
+ (completing-read (riece-mcat "Add-on: ")
+ (mapcar (lambda (dependency)
+ (list (symbol-name (car dependency))))
+ riece-addon-dependencies)
+ (lambda (pointer)
+ (let ((enabled
+ (intern-soft (concat (car pointer)
+ "-enabled"))))
+ (and enabled
+ (null (symbol-value enabled)))))
+ t)))))
+ (riece-command-insinuate-addon addon)
+ (riece-enable-addon addon t)
+ (when (eq major-mode 'riece-addon-list-mode)
+ (riece-command-list-addons)
+ (riece-addon-list-set-point addon)))
+
+(defun riece-command-disable-addon (addon)
+ (interactive
+ (list
+ (or (if (eq major-mode 'riece-addon-list-mode)
+ (get-text-property (point) 'riece-addon))
+ (intern-soft
+ (completing-read (riece-mcat "Add-on: ")
+ (mapcar (lambda (dependency)
+ (list (symbol-name (car dependency))))
+ riece-addon-dependencies)
+ (lambda (pointer)
+ (let ((enabled
+ (intern-soft (concat (car pointer)
+ "-enabled"))))
+ (and enabled
+ (symbol-value enabled))))
+ t)))))
+ (riece-disable-addon addon t)
+ (when (eq major-mode 'riece-addon-list-mode)
+ (riece-command-list-addons)
+ (riece-addon-list-set-point addon)))
+
+(defun riece-command-insinuate-addon (addon)
+ (interactive
+ (list
+ (or (if (eq major-mode 'riece-addon-list-mode)
+ (get-text-property (point) 'riece-addon))
+ (intern-soft
+ (completing-read (riece-mcat "Add-on: ")
+ (mapcar (lambda (dependency)
+ (list (symbol-name (car dependency))))
+ riece-addon-modules)
+ (lambda (pointer)
+ (not (get (intern-soft (car pointer))
+ 'riece-addon-insinuated)))
+ t)))))
+ (riece-insinuate-addon addon 'ask)
+ (when (eq major-mode 'riece-addon-list-mode)
+ (riece-command-list-addons)
+ (riece-addon-list-set-point addon)))
+
+(defun riece-command-uninstall-addon (addon)
+ (interactive
+ (list
+ (or (if (eq major-mode 'riece-addon-list-mode)
+ (get-text-property (point) 'riece-addon))
+ (intern-soft
+ (completing-read (riece-mcat "Add-on: ")
+ (mapcar (lambda (dependency)
+ (list (symbol-name (car dependency))))
+ riece-addon-dependencies)
+ (lambda (pointer)
+ (get (intern-soft (car pointer))
+ 'riece-addon-insinuated))
+ t)))))
+ (riece-uninstall-addon addon t)
+ (when (eq major-mode 'riece-addon-list-mode)
+ (riece-command-list-addons)
+ (riece-addon-list-set-point addon)))
+
+(defun riece-command-unload-addon (addon)
+ (interactive
+ (list
+ (or (if (eq major-mode 'riece-addon-list-mode)
+ (get-text-property (point) 'riece-addon))
+ (intern-soft
+ (completing-read (riece-mcat "Add-on: ")
+ (mapcar (lambda (dependency)
+ (list (symbol-name (car dependency))))
+ riece-addon-dependencies)
+ (lambda (pointer)
+ (get (intern-soft (car pointer))
+ 'riece-addon-insinuated))
+ t)))))
+ (riece-uninstall-addon addon t)
+ (if (get addon 'riece-addon-not-unloadable)
+ (message (riece-mcat "Add-on %S is not allowed to unload") addon)
+ (unload-feature addon)
+ (message (riece-mcat "Add-on %S is unloaded") addon))
+ (when (eq major-mode 'riece-addon-list-mode)
+ (riece-command-list-addons)
+ (riece-addon-list-set-point addon)))
+
+(provide 'riece-addon)
+
+;;; riece-addon.el ends here
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