lisp/muse-project.el

   1 ;;; muse-project.el --- Handle Muse projects.
   2
   3 ;; Copyright (C) 2004, 2005  Free Software Foundation, Inc.
   4
   5 ;; This file is not part of GNU Emacs.
   6
   7 ;; This is free software; you can redistribute it and/or modify it under
   8 ;; the terms of the GNU General Public License as published by the Free
   9 ;; Software Foundation; either version 2, or (at your option) any later
  10 ;; version.
  11 ;;
  12 ;; This is distributed in the hope that it will be useful, but WITHOUT
  13 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 ;; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 ;; for more details.
  16 ;;
  17 ;; You should have received a copy of the GNU General Public License
  18 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  19 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20 ;; Boston, MA 02110-1301, USA.
  21
  22 ;;; Commentary:
  23
  24 ;;; Contributors:
  25
  26 ;;; Code:
  27
  28 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  29 ;;
  30 ;; Muse Project Maintainance
  31 ;;
  32 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  33
  34 (require 'muse)
  35 (require 'muse-publish)
  36
  37 (defgroup muse-project nil
  38   "Options controlling the behavior of Muse project handling."
  39   :group 'muse)
  40
  41 (defcustom muse-before-project-publish-hook nil
  42   "A hook run before a project is published.
  43 Each function is passed the project object, a cons with the format
  44   (PROJNAME . SETTINGS)"
  45   :type 'hook
  46   :group 'muse-project)
  47
  48 (defcustom muse-after-project-publish-hook nil
  49   "A hook run after a project is published.
  50 Each function is passed the project object, a cons with the format
  51   (PROJNAME . SETTINGS)"
  52   :type 'hook
  53   :group 'muse-project)
  54
  55 (defun muse-project-alist-get (sym)
  56   "Turn `muse-project-alist' into something we can customize easily."
  57   (when (boundp sym)
  58     (let* ((val (copy-alist (symbol-value sym)))
  59            (head val))
  60       (while val
  61         (let ((head (car (cdar val)))
  62               res)
  63           ;; Turn settings of first part into cons cells, symbol->string
  64           (while head
  65             (cond ((stringp (car head))
  66                    (add-to-list 'res (car head) t)
  67                    (setq head (cdr head)))
  68                   ((symbolp (car head))
  69                    (add-to-list 'res (list (symbol-name (car head))
  70                                            (cadr head)) t)
  71                    (setq head (cddr head)))
  72                   (t
  73                    (setq head (cdr head)))))
  74           (setcdr (car val) (cons res (cdr (cdar val)))))
  75         (let ((styles (cdar val)))
  76           ;; Symbol->string in every style
  77           (while (cdr styles)
  78             (let ((head (cadr styles))
  79                   res)
  80               (while (consp head)
  81                 (setq res (plist-put res (symbol-name (car head))
  82                                      (cadr head)))
  83                 (setq head (cddr head)))
  84               (setcdr styles (cons res (cddr styles))))
  85             (setq styles (cdr styles))))
  86         (setq val (cdr val)))
  87       head)))
  88
  89 (defun muse-project-alist-set (sym val)
  90   "Turn customized version of `muse-project-alist' into something
  91 Muse can make use of."
  92   (set sym val)
  93   (while val
  94     (let ((head (car (cdar val)))
  95           res)
  96       ;; Turn cons cells into flat list, string->symbol
  97       (while head
  98         (cond ((stringp (car head))
  99                (add-to-list 'res (car head) t))
 100               ((consp (car head))
 101                (add-to-list 'res (intern (caar head)) t)
 102                (add-to-list 'res (car (cdar head)) t)))
 103         (setq head (cdr head)))
 104       (setcdr (car val) (cons res (cdr (cdar val)))))
 105     (let ((styles (cdar val)))
 106       ;; String->symbol in every style
 107       (while (cdr styles)
 108         (let ((head (cadr styles))
 109               res)
 110           (while (consp head)
 111             (setq res (plist-put res (intern (car head))
 112                                  (cadr head)))
 113             (setq head (cddr head)))
 114           (setcdr styles (cons res (cddr styles))))
 115         (setq styles (cdr styles))))
 116     (setq val (cdr val))))
 117
 118 (define-widget 'muse-project 'default
 119   "A widget that defines a Muse project."
 120   :format "\n%v"
 121   :value-create 'muse-widget-type-value-create
 122   :value-get 'muse-widget-child-value-get
 123   :match 'muse-widget-type-match
 124   :type '(cons :format "    %v"
 125           (repeat :tag "Settings" :format "%{%t%}:\n%v%i\n\n"
 126                        (choice
 127                         (string :tag "Directory")
 128                         (list :tag "Book function"
 129                               (const :tag ":book-funcall" ":book-funcall")
 130                               (choice (function)
 131                                       (sexp :tag "Unknown")))
 132                         (list :tag "Book part"
 133                               (const :tag ":book-part" ":book-part")
 134                               (string :tag "Name"))
 135                         (list :tag "Book style"
 136                               (const :tag ":book-style" ":book-style")
 137                               (string :tag "Style"))
 138                         (list :tag "Default file"
 139                               (const :tag ":default" ":default")
 140                               (string :tag "File"))
 141                         (list :tag "End of book"
 142                               (const :tag ":book-end" ":book-end")
 143                               (const t))
 144                         (list :tag "Force publishing"
 145                               (const :tag ":force-publish" ":force-publish")
 146                               (repeat (string :tag "File")))
 147                         (list :tag "Major mode"
 148                               (const :tag ":major-mode" ":major-mode")
 149                               (choice (function :tag "Mode")
 150                                       (sexp :tag "Unknown")))
 151                         (list :tag "New chapter"
 152                               (const :tag ":book-chapter" ":book-chapter")
 153                               (string :tag "Name"))
 154                         (list :tag "No chapters"
 155                               (const :tag ":nochapters" ":nochapters")
 156                               (const t))
 157                         (list :tag "Set variables"
 158                               (const :tag ":set" ":set")
 159                               (repeat (list (symbol :tag "Variable")
 160                                             (sexp :tag "Setting"))))
 161                         (list :tag "Visit links using"
 162                               (const :tag ":visit-link" ":visit-link")
 163                               (choice (function)
 164                                       (sexp :tag "Unknown")))))
 165                (repeat :tag "Styles" :format "%{%t%}:\n%v%i\n\n"
 166                        (set :tag "Style"
 167                             (list :inline t
 168                                   :tag "Publishing style"
 169                                   (const :tag ":base" ":base")
 170                                   (string :tag "Style"))
 171                             (list :inline t
 172                                   :tag "Base URL"
 173                                   (const :tag ":base-url" ":base-url")
 174                                   (string :tag "URL"))
 175                             (list :inline t
 176                                   :tag "Exclude matching"
 177                                   (const :tag ":exclude" ":exclude")
 178                                   (regexp))
 179                             (list :inline t
 180                                   :tag "Include matching"
 181                                   (const :tag ":include" ":include")
 182                                   (regexp))
 183                             (list :inline t
 184                                   :tag "Timestamps file"
 185                                   (const :tag ":timestamps" ":timestamps")
 186                                   (file))
 187                             (list :inline t
 188                                   :tag "Path"
 189                                   (const :tag ":path" ":path")
 190                                   (string :tag "Path"))))))
 191
 192 (defcustom muse-project-alist nil
 193   "An alist of Muse projects.
 194 A project defines a fileset, and a list of custom attributes for use
 195 when publishing files in that project."
 196   :type '(choice (const :tag "No projects defined." nil)
 197                  (repeat (cons :format "%{%t%}:\n\n%v"
 198                                :tag "Project" :indent 4
 199                                (string :tag "Project name")
 200                                muse-project))
 201                  (sexp :tag "Cannot parse expression"))
 202   :get 'muse-project-alist-get
 203   :set 'muse-project-alist-set
 204   :group 'muse-project)
 205
 206 (defvar muse-project-file-alist nil
 207   "This variable is automagically constructed as needed.")
 208
 209 (defcustom muse-project-ignore-regexp
 210   "\\`\\(\\.?#.*\\|.*,v\\|.*~\\|\\.\\.?\\)\\'"
 211   "A regexp matching files to be ignored in Wiki directories."
 212   :type 'regexp
 213   :group 'muse-regexp)
 214
 215 (defvar muse-current-project nil
 216   "Project we are currently visiting.")
 217 (make-variable-buffer-local 'muse-current-project)
 218
 219 (defsubst muse-project (&optional project)
 220   "Resolve the given PROJECT into a full Muse project, if it is a string."
 221   (if (null project)
 222       (or muse-current-project
 223           (muse-project-of-file))
 224     (if (stringp project)
 225         (assoc project muse-project-alist)
 226       (muse-assert (consp project))
 227       project)))
 228
 229 (defsubst muse-project-page-file (page project &optional no-check-p)
 230   "Return a filename if PAGE exists within the given Muse PROJECT."
 231   (setq project (muse-project project))
 232   (cdr (assoc page (muse-project-file-alist project no-check-p))))
 233
 234 (defun muse-project-private-p (file)
 235   "Return non-nil if NAME is a private page with PROJECT."
 236   (unless muse-under-windows-p
 237     (setq file (file-truename file))
 238     (if (file-attributes file)  ; don't publish if no attributes exist
 239         (or (when (eq ?- (aref (nth 8 (file-attributes
 240                                        (file-name-directory file))) 7))
 241               (message (concat
 242                         "The " (file-name-directory file)
 243                         " directory must be readable by others"
 244                         " in order for its contents to be published.")))
 245             (eq ?- (aref (nth 8 (file-attributes file)) 7)))
 246       t)))
 247
 248 (defun muse-project-file-entries (path)
 249   (let* ((names (list t))
 250          (lnames names))
 251     (cond
 252      ((file-directory-p path)
 253       (dolist (file (directory-files
 254                      path t (when muse-file-extension
 255                               (concat "." muse-file-extension "\\'"))))
 256         (unless (or (string-match muse-project-ignore-regexp file)
 257                     (file-directory-p file))
 258           (setcdr lnames
 259                   (cons (cons (muse-page-name file) file) nil))
 260           (setq lnames (cdr lnames)))))
 261      ((file-readable-p path)
 262       (setcdr lnames
 263               (cons (cons (muse-page-name path) path) nil))
 264       (setq lnames (cdr lnames)))
 265      (t                                 ; regexp
 266       (muse-assert (file-name-directory path))
 267       (dolist (file (directory-files
 268                      (file-name-directory path) t
 269                      (file-name-nondirectory path)))
 270         (unless (string-match muse-project-ignore-regexp file)
 271           (setcdr lnames
 272                   (cons (cons (muse-page-name file) file) nil))
 273           (setq lnames (cdr lnames))))))
 274     (cdr names)))
 275
 276 (defun muse-project-file-alist (&optional project no-check-p)
 277   "Return member filenames for the given Muse PROJECT.
 278 On UNIX, this list is only updated if one of the directories'
 279 contents have changed.  On Windows, it is always reread from
 280 disk."
 281   (setq project (muse-project project))
 282   (let ((file-alist (assoc (car project) muse-project-file-alist))
 283         last-mod)
 284     ;; Determine the last modified of any directory mentioned in the
 285     ;; project's pattern list
 286     (unless (or muse-under-windows-p no-check-p)
 287       (let ((pats (cadr project)))
 288         (while pats
 289           (if (symbolp (car pats))
 290               (setq pats (cddr pats))
 291             (let ((dir (or (and (file-directory-p (car pats)) (car pats))
 292                            (and (not (file-readable-p (car pats)))
 293                                 (file-directory-p
 294                                  (file-name-directory (car pats)))
 295                                 (file-name-directory (car pats))))))
 296               (if dir
 297                   (let ((mod-time (nth 5 (file-attributes dir))))
 298                     (if (or (null last-mod)
 299                             (and mod-time
 300                                  (muse-time-less-p last-mod mod-time)))
 301                         (setq last-mod mod-time)))))
 302             (setq pats (cdr pats))))))
 303     ;; Either return the currently known list, or read it again from
 304     ;; disk
 305     (if (or (and no-check-p (cadr file-alist))
 306             (not (or muse-under-windows-p
 307                      (null (cddr file-alist))
 308                      (null last-mod)
 309                      (muse-time-less-p (cddr file-alist) last-mod))))
 310         (cadr file-alist)
 311       (if file-alist
 312           (setcdr (cdr file-alist) last-mod)
 313         (setq file-alist (cons (car project) (cons nil last-mod))
 314               muse-project-file-alist
 315               (cons file-alist muse-project-file-alist)))
 316       ;; Read in all of the file entries
 317       (save-match-data
 318         (setcar
 319          (cdr file-alist)
 320          (let* ((names (list t))
 321                 (pats (cadr project)))
 322            (while pats
 323              (if (symbolp (car pats))
 324                  (setq pats (cddr pats))
 325                (nconc names (muse-project-file-entries (car pats)))
 326                (setq pats (cdr pats))))
 327            (cdr names)))))))
 328
 329 (defun muse-project-of-file (&optional pathname)
 330   "Determine which project the given PATHNAME relates to.
 331 If PATHNAME is nil, the current buffer's filename is used."
 332   (if (and (null pathname) muse-current-project)
 333       muse-current-project
 334     (setq pathname (or pathname
 335                        (and (boundp 'muse-publishing-current-file)
 336                             muse-publishing-current-file)
 337                        buffer-file-name))
 338     (when pathname
 339       (let* ((file (file-truename pathname))
 340              (dir  (file-name-directory file))
 341              (project-entry muse-project-alist)
 342              found)
 343         (save-match-data
 344           (while (and project-entry (not found))
 345             (let ((pats (car (cdar project-entry))))
 346               (while (and pats (not found))
 347                 (if (symbolp (car pats))
 348                     (setq pats (cddr pats))
 349                   (let ((truename (file-truename (car pats))))
 350                     (if (or (string= truename file)
 351                             (string= truename dir)
 352                             (string-match truename file))
 353                         (setq found (car project-entry))))
 354                   (setq pats (cdr pats))))
 355               (setq project-entry (cdr project-entry)))))
 356         found))))
 357
 358 (defun muse-read-project (prompt &optional no-check-p no-assume)
 359   "Read a project name from the minibuffer, if it can't be figured
 360   out."
 361   (if (null muse-project-alist)
 362       (error "There are no Muse projects defined; see `muse-project-alist'.")
 363     (or (unless no-check-p
 364           (muse-project-of-file))
 365         (if (and (not no-assume)
 366                  (= 1 (length muse-project-alist)))
 367             (car muse-project-alist)
 368           (assoc (completing-read prompt muse-project-alist)
 369                  muse-project-alist)))))
 370
 371 (defvar muse-project-page-history nil)
 372
 373 (defun muse-read-project-file (project prompt &optional default)
 374   (let ((name (completing-read prompt (muse-project-file-alist project)
 375                                nil nil nil 'muse-project-page-history
 376                                default)))
 377     (cons name (muse-project-page-file name project))))
 378
 379 (defun muse-project-find-file (name project &optional command directory)
 380   "Open the Muse page given by NAME in PROJECT.
 381 If COMMAND is non-nil, it is the function used to visit the file.
 382 If DIRECTORY is non-nil, it is the directory in which the page
 383 will be created if it does not already exist.  Otherwise, the
 384 first directory within the project's fileset is used."
 385   (interactive
 386    (let* ((project (muse-read-project "Find in project: "
 387                                       current-prefix-arg))
 388           (default (muse-get-keyword :default (cadr project)))
 389           (entry (muse-read-project-file
 390                   project (if default
 391                               (format "Find page: (default: %s) "
 392                                       default)
 393                             "Find page: ")
 394                   default)))
 395      (list entry project)))
 396   (setq project (muse-project project))
 397   (let ((project-name (car project)))
 398     (unless (interactive-p)
 399       (setq project (muse-project project)
 400             name (cons name (muse-project-page-file name project))))
 401     ;; If we're given a relative name, open it as-is
 402     (if (and (car name)
 403              (save-match-data (string-match "\\.\\./" (car name))))
 404         (setcdr name (if muse-file-extension
 405                          (concat (car name) "." muse-file-extension)
 406                        (car name)))
 407       ;; At this point, name is (PAGE . FILE).
 408       (unless (cdr name)
 409         (let ((pats (cadr project)))
 410           (while (and pats (null directory))
 411             (if (symbolp (car pats))
 412                 (setq pats (cddr pats))
 413               (if (file-directory-p (car pats))
 414                   (setq directory (car pats) pats nil)
 415                 (setq pats (cdr pats))))))
 416         (when directory
 417           (let ((filename (expand-file-name
 418                            (if muse-file-extension
 419                                (concat (car name) "." muse-file-extension)
 420                              (car name))
 421                            directory)))
 422             (unless (file-exists-p directory)
 423               (make-directory directory t))
 424             (setcdr name filename)))))
 425     ;; Open the file
 426     (if (cdr name)
 427         (funcall (or command 'find-file) (cdr name))
 428       (error "There is no page %s in project %s."
 429              (car name) project-name))))
 430
 431 (defun muse-project-applicable-styles (file styles &optional ignore-regexp)
 432   "Given STYLES, return a list of the ones that are considered for FILE.
 433 The name of a project may be used for STYLES."
 434   (when (stringp styles)
 435     (setq styles (cddr (muse-project styles))))
 436   (muse-assert (and file styles))
 437   (let (used-styles)
 438     (dolist (style styles)
 439       (let ((include-regexp (muse-style-element :include style))
 440             (exclude-regexp (muse-style-element :exclude style)))
 441         (when (and (or ignore-regexp
 442                        (and (null include-regexp)
 443                             (null exclude-regexp))
 444                        (if include-regexp
 445                            (string-match include-regexp file)
 446                          (not (string-match exclude-regexp file))))
 447                    (or (not (file-exists-p file))
 448                        (not (muse-project-private-p file))))
 449           (add-to-list 'used-styles style))))
 450     used-styles))
 451
 452 (defun muse-project-publish-file (file styles &optional force ignore-regexp)
 453   (setq styles (muse-project-applicable-styles file styles ignore-regexp))
 454   (let (published)
 455     (dolist (style styles)
 456       (let ((output-dir (muse-style-element :path style)))
 457         ;; ensure the publishing location is available
 458         (unless (file-exists-p output-dir)
 459           (message "Creating publishing directory %s" output-dir)
 460           (make-directory output-dir))
 461         ;; publish the member file!
 462         (if (muse-publish-file file style output-dir force)
 463             (setq published t))))
 464     published))
 465
 466 (defun muse-project-save-buffers (&optional project)
 467   (setq project (muse-project project))
 468   (map-y-or-n-p
 469    (function
 470     (lambda (buffer)
 471       (and (buffer-modified-p buffer)
 472            (not (buffer-base-buffer buffer))
 473            (or (buffer-file-name buffer)
 474                (progn
 475                  (set-buffer buffer)
 476                  (and buffer-offer-save
 477                       (> (buffer-size) 0))))
 478            (with-current-buffer buffer
 479              (let ((proj (muse-project-of-file)))
 480                (and proj (string= (car proj)
 481                                   (car project)))))
 482            (if (buffer-file-name buffer)
 483                (format "Save file %s? "
 484                        (buffer-file-name buffer))
 485              (format "Save buffer %s? "
 486                      (buffer-name buffer))))))
 487    (function
 488     (lambda (buffer)
 489       (set-buffer buffer)
 490       (save-buffer)))
 491    (buffer-list)
 492    '("buffer" "buffers" "save")
 493    (if (boundp 'save-some-buffers-action-alist)
 494        save-some-buffers-action-alist)))
 495
 496 (defun muse-project-publish (project &optional force)
 497   "Publish the pages of PROJECT that need publishing."
 498   (interactive (list (muse-read-project "Publish project: " nil t)
 499                      current-prefix-arg))
 500   (setq project (muse-project project))
 501   (let ((styles (cddr project))
 502         (muse-current-project project)
 503         published)
 504     ;; determine the style from the project, or else ask
 505     (unless styles
 506       (setq styles (list (muse-publish-get-style))))
 507     ;; prompt to save any buffers related to this project
 508     (muse-project-save-buffers project)
 509     ;; run hook before publishing begins
 510     (run-hook-with-args 'muse-before-project-publish-hook project)
 511     ;; publish all files in the project, for each style; the actual
 512     ;; publishing will only happen if the files are newer than the
 513     ;; last published output, or if the file is listed in
 514     ;; :force-publish.  Files in :force-publish will not trigger the
 515     ;; "All pages need to be published" message.
 516     (let ((forced-files (muse-get-keyword :force-publish (cadr project)))
 517           (file-alist (muse-project-file-alist project)))
 518       (dolist (pair file-alist)
 519         (when (muse-project-publish-file (cdr pair) styles force)
 520           (setq forced-files (delete (car pair) forced-files))
 521           (setq published t)))
 522       (dolist (file forced-files)
 523         (muse-project-publish-file (cdr (assoc file file-alist)) styles t)))
 524     ;; run hook after publishing ends
 525     (run-hook-with-args 'muse-after-project-publish-hook project)
 526     ;; notify the user that everything is now done
 527     (if published
 528         (message "All pages in %s have been published." (car project))
 529       (message "No pages in %s need publishing at this time."
 530                (car project)))))
 531
 532 (defun muse-project-batch-publish ()
 533   "Publish Muse files in batch mode."
 534   (let ((muse-batch-publishing-p t)
 535         force)
 536     (if (string= "--force" (or (car command-line-args-left) ""))
 537         (setq force t
 538               command-line-args-left (cdr command-line-args-left)))
 539     (if command-line-args-left
 540         (dolist (project command-line-args-left)
 541           (message "Publishing project %s ..." project)
 542           (muse-project-publish project force))
 543       (message "No projects specified."))))
 544
 545 (eval-when-compile
 546   (put 'make-local-hook 'byte-compile nil))
 547
 548 (defun muse-project-set-variables ()
 549   "Load project-specific variables."
 550   (let ((vars (muse-get-keyword :set (cadr muse-current-project)))
 551         sym custom-set var)
 552     (while vars
 553       (setq sym (car vars))
 554       (setq custom-set (or (get sym 'custom-set) 'set))
 555       (setq var (if (eq (get sym 'custom-type) 'hook)
 556                     (make-local-hook sym)
 557                   (make-local-variable sym)))
 558       (funcall custom-set var (car (cdr vars)))
 559       (setq vars (cdr (cdr vars))))))
 560
 561 (defun muse-project-delete-output-files (project)
 562   (interactive
 563    (list (muse-read-project "Remove all output files for project: " nil t)))
 564   (setq project (muse-project project))
 565   (let ((file-alist (muse-project-file-alist project))
 566         (styles (cddr project))
 567         output-file path)
 568     (dolist (entry file-alist)
 569       (dolist (style styles)
 570         (setq output-file
 571               (and (setq path (muse-style-element :path style))
 572                    (expand-file-name
 573                     (concat (muse-style-element :prefix style)
 574                             (car entry)
 575                             (or (muse-style-element :osuffix style)
 576                                 (muse-style-element :suffix style)))
 577                     path)))
 578         (if output-file
 579             (muse-delete-file-if-exists output-file))))))
 580
 581 (provide 'muse-project)
 582
 583 ;;; muse-project.el ends here