lisp/org-taskjuggler.el

   1 ;;; org-taskjuggler.el --- TaskJuggler exporter for org-mode
   2 ;;
   3 ;; Copyright (C) 2007-2011 Free Software Foundation, Inc.
   4 ;;
   5 ;; Emacs Lisp Archive Entry
   6 ;; Filename: org-taskjuggler.el
   7 ;; Author: Christian Egli
   8 ;; Maintainer: Christian Egli
   9 ;; Keywords: org, taskjuggler, project planning
  10 ;; Description: Converts an org-mode buffer into a taskjuggler project plan
  11 ;; URL:
  12
  13 ;; This file is part of GNU Emacs.
  14
  15 ;; GNU Emacs is free software: you can redistribute it and/or modify
  16 ;; it under the terms of the GNU General Public License as published by
  17 ;; the Free Software Foundation, either version 3 of the License, or
  18 ;; (at your option) any later version.
  19
  20 ;; GNU Emacs is distributed in the hope that it will be useful,
  21 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  22 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23 ;; GNU General Public License for more details.
  24
  25 ;; You should have received a copy of the GNU General Public License
  26 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  27
  28 ;; Commentary:
  29 ;;
  30 ;; This library implements a TaskJuggler exporter for org-mode.
  31 ;; TaskJuggler uses a text format to define projects, tasks and
  32 ;; resources, so it is a natural fit for org-mode. It can produce all
  33 ;; sorts of reports for tasks or resources in either HTML, CSV or PDF.
  34 ;; The current version of TaskJuggler requires KDE but the next
  35 ;; version is implemented in Ruby and should therefore run on any
  36 ;; platform.
  37 ;;
  38 ;; The exporter is a bit different from other exporters, such as the
  39 ;; HTML and LaTeX exporters for example, in that it does not export
  40 ;; all the nodes of a document or strictly follow the order of the
  41 ;; nodes in the document.
  42 ;;
  43 ;; Instead the TaskJuggler exporter looks for a tree that defines the
  44 ;; tasks and a optionally tree that defines the resources for this
  45 ;; project. It then creates a TaskJuggler file based on these trees
  46 ;; and the attributes defined in all the nodes.
  47 ;;
  48 ;; * Installation
  49 ;;
  50 ;; Put this file into your load-path and the following line into your
  51 ;; ~/.emacs:
  52 ;;
  53 ;;   (require 'org-taskjuggler)
  54 ;;
  55 ;; The interactive functions are similar to those of the HTML and LaTeX
  56 ;; exporters:
  57 ;;
  58 ;; M-x `org-export-as-taskjuggler'
  59 ;; M-x `org-export-as-taskjuggler-and-open'
  60 ;;
  61 ;; * Tasks
  62 ;;
  63 ;; Let's illustrate the usage with a small example. Create your tasks
  64 ;; as you usually do with org-mode. Assign efforts to each task using
  65 ;; properties (it's easiest to do this in the column view). You should
  66 ;; end up with something similar to the example by Peter Jones in
  67 ;; http://www.contextualdevelopment.com/static/artifacts/articles/2008/project-planning/project-planning.org.
  68 ;; Now mark the top node of your tasks with a tag named
  69 ;; "taskjuggler_project" (or whatever you customized
  70 ;; `org-export-taskjuggler-project-tag' to). You are now ready to
  71 ;; export the project plan with `org-export-as-taskjuggler-and-open'
  72 ;; which will export the project plan and open a gant chart in
  73 ;; TaskJugglerUI.
  74 ;;
  75 ;; * Resources
  76 ;;
  77 ;; Next you can define resources and assign those to work on specific
  78 ;; tasks. You can group your resources hierarchically. Tag the top
  79 ;; node of the resources with "taskjuggler_resource" (or whatever you
  80 ;; customized `org-export-taskjuggler-resource-tag' to). You can
  81 ;; optionally assign an identifier (named "resource_id") to the
  82 ;; resources (using the standard org properties commands) or you can
  83 ;; let the exporter generate identifiers automatically (the exporter
  84 ;; picks the first word of the headline as the identifier as long as
  85 ;; it is unique, see the documentation of
  86 ;; `org-taskjuggler-get-unique-id'). Using that identifier you can
  87 ;; then allocate resources to tasks. This is again done with the
  88 ;; "allocate" property on the tasks. Do this in column view or when on
  89 ;; the task type
  90 ;;
  91 ;;  C-c C-x p allocate RET <resource_id> RET
  92 ;;
  93 ;; Once the allocations are done you can again export to TaskJuggler
  94 ;; and check in the Resource Allocation Graph which person is working
  95 ;; on what task at what time.
  96 ;;
  97 ;; * Export of properties
  98 ;;
  99 ;; The exporter also takes TODO state information into consideration,
 100 ;; i.e. if a task is marked as done it will have the corresponding
 101 ;; attribute in TaskJuggler ("complete 100"). Also it will export any
 102 ;; property on a task resource or resource node which is known to
 103 ;; TaskJuggler, such as limits, vacation, shift, booking, efficiency,
 104 ;; journalentry, rate for resources or account, start, note, duration,
 105 ;; end, journalentry, milestone, reference, responsible, scheduling,
 106 ;; etc for tasks.
 107 ;;
 108 ;; * Dependencies
 109 ;;
 110 ;; The exporter will handle dependencies that are defined in the tasks
 111 ;; either with the ORDERED attribute (see TODO dependencies in the Org
 112 ;; mode manual) or with the BLOCKER attribute (see org-depend.el) or
 113 ;; alternatively with a depends attribute. Both the BLOCKER and the
 114 ;; depends attribute can be either "previous-sibling" or a reference
 115 ;; to an identifier (named "task_id") which is defined for another
 116 ;; task in the project. BLOCKER and the depends attribute can define
 117 ;; multiple dependencies separated by either space or comma. You can
 118 ;; also specify optional attributes on the dependency by simply
 119 ;; appending it. The following examples should illustrate this:
 120 ;;
 121 ;; * Training material
 122 ;;   :PROPERTIES:
 123 ;;   :task_id:  training_material
 124 ;;   :ORDERED:  t
 125 ;;   :END:
 126 ;; ** Markup Guidelines
 127 ;;    :PROPERTIES:
 128 ;;    :Effort:   2d
 129 ;;    :END:
 130 ;; ** Workflow Guidelines
 131 ;;    :PROPERTIES:
 132 ;;    :Effort:   2d
 133 ;;    :END:
 134 ;; * Presentation
 135 ;;   :PROPERTIES:
 136 ;;   :Effort:   2d
 137 ;;   :BLOCKER:  training_material { gapduration 1d } some_other_task
 138 ;;   :END:
 139 ;;
 140 ;;;; * TODO
 141 ;;   - Use SCHEDULED and DEADLINE information (not just start and end
 142 ;;     properties).
 143 ;;   - Look at org-file-properties, org-global-properties and
 144 ;;     org-global-properties-fixed
 145 ;;   - What about property inheritance and org-property-inherit-p?
 146 ;;   - Use TYPE_TODO as an way to assign resources
 147 ;;   - Make sure multiple dependency definitions (i.e. BLOCKER on
 148 ;;     previous-sibling and on a specific task_id) in multiple
 149 ;;     attributes are properly exported.
 150 ;;
 151 ;;; Code:
 152
 153 (eval-when-compile
 154   (require 'cl))
 155
 156 (require 'org)
 157 (require 'org-exp)
 158
 159 ;;; User variables:
 160
 161 (defgroup org-export-taskjuggler nil
 162   "Options for exporting Org-mode files to TaskJuggler."
 163   :tag "Org Export TaskJuggler"
 164   :group 'org-export)
 165
 166 (defcustom org-export-taskjuggler-extension ".tjp"
 167   "Extension of TaskJuggler files."
 168   :group 'org-export-taskjuggler
 169   :type 'string)
 170
 171 (defcustom org-export-taskjuggler-project-tag "taskjuggler_project"
 172   "Tag, property or todo used to find the tree containing all
 173 the tasks for the project."
 174   :group 'org-export-taskjuggler
 175   :type 'string)
 176
 177 (defcustom org-export-taskjuggler-resource-tag "taskjuggler_resource"
 178   "Tag, property or todo used to find the tree containing all the
 179 resources for the project."
 180   :group 'org-export-taskjuggler
 181   :type 'string)
 182
 183 (defcustom org-export-taskjuggler-target-version 2.4
 184   "Which version of TaskJuggler the exporter is targeting."
 185   :group 'org-export-taskjuggler
 186   :type 'number)
 187
 188 (defcustom org-export-taskjuggler-default-project-version "1.0"
 189   "Default version string for the project."
 190   :group 'org-export-taskjuggler
 191   :type 'string)
 192
 193 (defcustom org-export-taskjuggler-default-project-duration 280
 194   "Default project duration if no start and end date have been defined
 195 in the root node of the task tree, i.e. the tree that has been marked
 196 with `org-export-taskjuggler-project-tag'"
 197   :group 'org-export-taskjuggler
 198   :type 'integer)
 199
 200 (defcustom org-export-taskjuggler-default-reports
 201   '("taskreport \"Gantt Chart\" {
 202   headline \"Project Gantt Chart\"
 203   columns hierarchindex, name, start, end, effort, duration, completed, chart
 204   timeformat \"%Y-%m-%d\"
 205   hideresource 1
 206   loadunit shortauto
 207 }"
 208 "resourcereport \"Resource Graph\" {
 209   headline \"Resource Allocation Graph\"
 210   columns no, name, utilization, freeload, chart
 211   loadunit shortauto
 212   sorttasks startup
 213   hidetask ~isleaf()
 214 }")
 215   "Default reports for the project."
 216   :group 'org-export-taskjuggler
 217   :type '(repeat (string :tag "Report")))
 218
 219 (defcustom org-export-taskjuggler-default-global-properties
 220   "shift s40 \"Part time shift\" {
 221   workinghours wed, thu, fri off
 222 }
 223 "
 224   "Default global properties for the project. Here you typically
 225 define global properties such as shifts, accounts, rates,
 226 vacation, macros and flags. Any property that is allowed within
 227 the TaskJuggler file can be inserted. You could for example
 228 include another TaskJuggler file.
 229
 230 The global properties are inserted after the project declaration
 231 but before any resource and task declarations."
 232   :group 'org-export-taskjuggler
 233   :type '(string :tag "Preamble"))
 234
 235 ;;; Hooks
 236
 237 (defvar org-export-taskjuggler-final-hook nil
 238   "Hook run at the end of TaskJuggler export, in the new buffer.")
 239
 240 ;;; Autoload functions:
 241
 242 ;; avoid compiler warning about free variable
 243 (defvar org-export-taskjuggler-old-level)
 244
 245 ;;;###autoload
 246 (defun org-export-as-taskjuggler ()
 247   "Export parts of the current buffer as a TaskJuggler file.
 248 The exporter looks for a tree with tag, property or todo that
 249 matches `org-export-taskjuggler-project-tag' and takes this as
 250 the tasks for this project. The first node of this tree defines
 251 the project properties such as project name and project period.
 252 If there is a tree with tag, property or todo that matches
 253 `org-export-taskjuggler-resource-tag' this three is taken as
 254 resources for the project. If no resources are specified, a
 255 default resource is created and allocated to the project. Also
 256 the taskjuggler project will be created with default reports as
 257 defined in `org-export-taskjuggler-default-reports'."
 258   (interactive)
 259
 260   (message "Exporting...")
 261   (setq-default org-done-keywords org-done-keywords)
 262   (let* ((tasks
 263           (org-taskjuggler-resolve-dependencies
 264            (org-taskjuggler-assign-task-ids
 265             (org-taskjuggler-compute-task-leafiness
 266              (org-map-entries
 267               'org-taskjuggler-components
 268               org-export-taskjuggler-project-tag nil 'archive 'comment)))))
 269          (resources
 270           (org-taskjuggler-assign-resource-ids
 271            (org-map-entries
 272             'org-taskjuggler-components
 273             org-export-taskjuggler-resource-tag nil 'archive 'comment)))
 274          (filename (expand-file-name
 275                     (concat
 276                      (file-name-sans-extension
 277                       (file-name-nondirectory buffer-file-name))
 278                      org-export-taskjuggler-extension)))
 279          (buffer (find-file-noselect filename))
 280          (old-buffer (current-buffer))
 281          (org-export-taskjuggler-old-level 0)
 282          task resource)
 283     (unless tasks
 284       (error "No tasks specified"))
 285     ;; add a default resource
 286     (unless resources
 287       (setq resources
 288             `((("resource_id" . ,(user-login-name))
 289                ("headline" . ,user-full-name)
 290                ("level" . 1)))))
 291     ;; add a default allocation to the first task if none was given
 292     (unless (assoc "allocate" (car tasks))
 293       (let ((task (car tasks))
 294             (resource-id (cdr (assoc "resource_id" (car resources)))))
 295         (setcar tasks (push (cons "allocate" resource-id) task))))
 296     ;; add a default start date to the first task if none was given
 297     (unless (assoc "start" (car tasks))
 298       (let ((task (car tasks))
 299             (time-string (format-time-string "%Y-%m-%d")))
 300         (setcar tasks (push (cons "start" time-string) task))))
 301     ;; add a default version if none was given
 302     (unless (assoc "version" (car tasks))
 303       (let ((task (car tasks))
 304             (version org-export-taskjuggler-default-project-version))
 305         (setcar tasks (push (cons "version" version) task))))
 306     (with-current-buffer buffer
 307       (erase-buffer)
 308       (org-clone-local-variables old-buffer "^org-")
 309       (org-taskjuggler-open-project (car tasks))
 310       (insert org-export-taskjuggler-default-global-properties)
 311       (insert "\n")
 312       (dolist (resource resources)
 313         (let ((level (cdr (assoc "level" resource))))
 314           (org-taskjuggler-close-maybe level)
 315           (org-taskjuggler-open-resource resource)
 316           (setq org-export-taskjuggler-old-level level)))
 317       (org-taskjuggler-close-maybe 1)
 318       (setq org-export-taskjuggler-old-level 0)
 319       (dolist (task tasks)
 320         (let ((level (cdr (assoc "level" task))))
 321           (org-taskjuggler-close-maybe level)
 322           (org-taskjuggler-open-task task)
 323           (setq org-export-taskjuggler-old-level level)))
 324       (org-taskjuggler-close-maybe 1)
 325       (org-taskjuggler-insert-reports)
 326       (save-buffer)
 327       (or (org-export-push-to-kill-ring "TaskJuggler")
 328           (message "Exporting... done"))
 329       (current-buffer))))
 330
 331 ;;;###autoload
 332 (defun org-export-as-taskjuggler-and-open ()
 333   "Export the current buffer as a TaskJuggler file and open it
 334 with the TaskJuggler GUI."
 335   (interactive)
 336   (let* ((file-name (buffer-file-name (org-export-as-taskjuggler)))
 337          (process-name "TaskJugglerUI")
 338          (command (concat process-name " " file-name)))
 339     (start-process-shell-command process-name nil command)))
 340
 341 (defun org-taskjuggler-targeting-tj3-p ()
 342   "Return true if we are targeting TaskJuggler III."
 343   (>= org-export-taskjuggler-target-version 3.0))
 344
 345 (defun org-taskjuggler-parent-is-ordered-p ()
 346   "Return true if the parent of the current node has a property
 347 \"ORDERED\". Return nil otherwise."
 348   (save-excursion
 349     (and (org-up-heading-safe) (org-entry-get (point) "ORDERED"))))
 350
 351 (defun org-taskjuggler-components ()
 352   "Return an alist containing all the pertinent information for
 353 the current node such as the headline, the level, todo state
 354 information, all the properties, etc."
 355   (let* ((props (org-entry-properties))
 356          (components (org-heading-components))
 357          (level (nth 1 components))
 358          (headline
 359           (replace-regexp-in-string
 360            "\"" "\\\"" (nth 4 components) t t)) ; quote double quotes in headlines
 361          (parent-ordered (org-taskjuggler-parent-is-ordered-p)))
 362     (push (cons "level" level) props)
 363     (push (cons "headline" headline) props)
 364     (push (cons "parent-ordered" parent-ordered) props)))
 365
 366 (defun org-taskjuggler-assign-task-ids (tasks)
 367   "Given a list of tasks return the same list assigning a unique id
 368 and the full path to each task. Taskjuggler takes hierarchical ids.
 369 For that reason we have to make ids locally unique and we have to keep
 370 a path to the current task."
 371   (let ((previous-level 0)
 372         unique-ids unique-id
 373         path
 374         task resolved-tasks tmp)
 375     (dolist (task tasks resolved-tasks)
 376       (let ((level (cdr (assoc "level" task))))
 377         (cond
 378          ((< previous-level level)
 379           (setq unique-id (org-taskjuggler-get-unique-id task (car unique-ids)))
 380           (dotimes (tmp (- level previous-level))
 381             (push (list unique-id) unique-ids)
 382             (push unique-id path)))
 383          ((= previous-level level)
 384           (setq unique-id (org-taskjuggler-get-unique-id task (car unique-ids)))
 385           (push unique-id (car unique-ids))
 386           (setcar path unique-id))
 387          ((> previous-level level)
 388           (dotimes (tmp (- previous-level level))
 389             (pop unique-ids)
 390             (pop path))
 391           (setq unique-id (org-taskjuggler-get-unique-id task (car unique-ids)))
 392           (push unique-id (car unique-ids))
 393           (setcar path unique-id)))
 394         (push (cons "unique-id" unique-id) task)
 395         (push (cons "path" (mapconcat 'identity (reverse path) ".")) task)
 396         (setq previous-level level)
 397         (setq resolved-tasks (append resolved-tasks (list task)))))))
 398
 399 (defun org-taskjuggler-compute-task-leafiness (tasks)
 400   "Figure out if each task is a leaf by looking at it's level,
 401 and the level of its successor. If the successor is higher (ie
 402 deeper), then it's not a leaf."
 403   (let (new-list)
 404     (while (car tasks)
 405       (let ((task (car tasks))
 406             (successor (car (cdr tasks))))
 407         (cond
 408          ;; if a task has no successors it is a leaf
 409          ((null successor)
 410           (push (cons (cons "leaf-node" t) task) new-list))
 411          ;; if the successor has a lower level than task it is a leaf
 412          ((<= (cdr (assoc "level" successor)) (cdr (assoc "level" task)))
 413           (push (cons (cons "leaf-node" t) task) new-list))
 414          ;; otherwise examine the rest of the tasks
 415          (t (push task new-list))))
 416       (setq tasks (cdr tasks)))
 417     (nreverse new-list)))
 418
 419 (defun org-taskjuggler-assign-resource-ids (resources)
 420   "Given a list of resources return the same list, assigning a
 421 unique id to each resource."
 422   (let (unique-ids new-list)
 423     (dolist (resource resources new-list)
 424       (let ((unique-id (org-taskjuggler-get-unique-id resource unique-ids)))
 425         (push (cons "unique-id" unique-id) resource)
 426         (push unique-id unique-ids)
 427         (push resource new-list)))
 428     (nreverse new-list)))
 429
 430 (defun org-taskjuggler-resolve-dependencies (tasks)
 431   (let ((previous-level 0)
 432         siblings
 433         task resolved-tasks)
 434     (dolist (task tasks resolved-tasks)
 435       (let* ((level (cdr (assoc "level" task)))
 436              (depends (cdr (assoc "depends" task)))
 437              (parent-ordered (cdr (assoc "parent-ordered" task)))
 438              (blocker (cdr (assoc "BLOCKER" task)))
 439              (blocked-on-previous
 440               (and blocker (string-match "previous-sibling" blocker)))
 441              (dependencies
 442               (org-taskjuggler-resolve-explicit-dependencies
 443                (append
 444                 (and depends (org-taskjuggler-tokenize-dependencies depends))
 445                 (and blocker (org-taskjuggler-tokenize-dependencies blocker)))
 446                tasks))
 447               previous-sibling)
 448         ; update previous sibling info
 449         (cond
 450          ((< previous-level level)
 451           (dotimes (tmp (- level previous-level))
 452             (push task siblings)))
 453          ((= previous-level level)
 454           (setq previous-sibling (car siblings))
 455           (setcar siblings task))
 456          ((> previous-level level)
 457           (dotimes (tmp (- previous-level level))
 458             (pop siblings))
 459           (setq previous-sibling (car siblings))
 460           (setcar siblings task)))
 461         ; insert a dependency on previous sibling if the parent is
 462         ; ordered or if the tasks has a BLOCKER attribute with value "previous-sibling"
 463         (when (or (and previous-sibling parent-ordered) blocked-on-previous)
 464           (push (format "!%s" (cdr (assoc "unique-id" previous-sibling))) dependencies))
 465         ; store dependency information
 466         (when dependencies
 467           (push (cons "depends" (mapconcat 'identity dependencies ", ")) task))
 468         (setq previous-level level)
 469         (setq resolved-tasks (append resolved-tasks (list task)))))))
 470
 471 (defun org-taskjuggler-tokenize-dependencies (dependencies)
 472   "Split a dependency property value DEPENDENCIES into the
 473 individual dependencies and return them as a list while keeping
 474 the optional arguments (such as gapduration) for the
 475 dependencies. A dependency will have to match `[-a-zA-Z0-9_]+'."
 476   (cond
 477    ((string-match "^ *$" dependencies) nil)
 478    ((string-match "^[ \t]*\\([-a-zA-Z0-9_]+\\([ \t]*{[^}]+}\\)?\\)[ \t,]*" dependencies)
 479     (cons
 480      (substring dependencies (match-beginning 1) (match-end 1))
 481      (org-taskjuggler-tokenize-dependencies (substring dependencies (match-end 0)))))
 482    (t (error (format "invalid dependency id %s" dependencies)))))
 483
 484 (defun org-taskjuggler-resolve-explicit-dependencies (dependencies tasks)
 485   "For each dependency in DEPENDENCIES try to find a
 486 corresponding task with a matching property \"task_id\" in TASKS.
 487 Return a list containing the resolved links for all DEPENDENCIES
 488 where a matching tasks was found. If the dependency is
 489 \"previous-sibling\" it is ignored (as this is dealt with in
 490 `org-taskjuggler-resolve-dependencies'). If there is no matching
 491 task the dependency is ignored and a warning is displayed ."
 492   (unless (null dependencies)
 493     (let*
 494         ;; the dependency might have optional attributes such as "{
 495         ;; gapduration 5d }", so only use the first string as id for the
 496         ;; dependency
 497         ((dependency (car dependencies))
 498          (id (car (split-string dependency)))
 499          (optional-attributes
 500           (mapconcat 'identity (cdr (split-string dependency)) " "))
 501          (path (org-taskjuggler-find-task-with-id id tasks)))
 502       (cond
 503        ;; ignore previous sibling dependencies
 504        ((equal (car dependencies) "previous-sibling")
 505         (org-taskjuggler-resolve-explicit-dependencies (cdr dependencies) tasks))
 506        ;; if the id is found in another task use its path
 507        ((not (null path))
 508         (cons (mapconcat 'identity (list path optional-attributes) " ")
 509               (org-taskjuggler-resolve-explicit-dependencies
 510                (cdr dependencies) tasks)))
 511        ;; warn about dangling dependency but otherwise ignore it
 512        (t (display-warning
 513            'org-export-taskjuggler
 514            (format "No task with matching property \"task_id\" found for id %s" id))
 515           (org-taskjuggler-resolve-explicit-dependencies (cdr dependencies) tasks))))))
 516
 517 (defun org-taskjuggler-find-task-with-id (id tasks)
 518   "Find ID in tasks. If found return the path of task. Otherwise
 519 return nil."
 520   (let ((task-id (cdr (assoc "task_id" (car tasks))))
 521         (path (cdr (assoc "path" (car tasks)))))
 522     (cond
 523      ((null tasks) nil)
 524      ((equal task-id id) path)
 525      (t (org-taskjuggler-find-task-with-id id (cdr tasks))))))
 526
 527 (defun org-taskjuggler-get-unique-id (item unique-ids)
 528   "Return a unique id for an ITEM which can be a task or a resource.
 529 The id is derived from the headline and made unique against
 530 UNIQUE-IDS. If the (downcased) first token of the headline is not
 531 unique try to add more (downcased) tokens of the headline or
 532 finally add more underscore characters (\"_\")."
 533   (let* ((headline (cdr (assoc "headline" item)))
 534          (parts (split-string headline))
 535          (id (org-taskjuggler-clean-id (downcase (pop parts)))))
 536     ; try to add more parts of the headline to make it unique
 537     (while (and (member id unique-ids) (car parts))
 538       (setq id (concat id "_" (org-taskjuggler-clean-id (downcase (pop parts))))))
 539     ; if its still not unique add "_"
 540     (while (member id unique-ids)
 541       (setq id (concat id "_")))
 542     id))
 543
 544 (defun org-taskjuggler-clean-id (id)
 545   "Clean and return ID to make it acceptable for taskjuggler."
 546   (and id
 547        ;; replace non-ascii by _
 548        (replace-regexp-in-string
 549         "[^a-zA-Z0-9_]" "_"
 550         ;; make sure id doesn't start with a number
 551         (replace-regexp-in-string "^\\([0-9]\\)" "_\\1" id))))
 552
 553 (defun org-taskjuggler-open-project (project)
 554   "Insert the beginning of a project declaration. All valid
 555 attributes from the PROJECT alist are inserted. If no end date is
 556 specified it is calculated
 557 `org-export-taskjuggler-default-project-duration' days from now."
 558   (let* ((unique-id (cdr (assoc "unique-id" project)))
 559          (headline (cdr (assoc "headline" project)))
 560          (version (cdr (assoc "version" project)))
 561          (start (cdr (assoc "start" project)))
 562          (end (cdr (assoc "end" project))))
 563     (insert
 564      (format "project %s \"%s\" \"%s\" %s +%sd {\n }\n"
 565              unique-id headline version start
 566              org-export-taskjuggler-default-project-duration))))
 567
 568 (defun org-taskjuggler-filter-and-join (items)
 569   "Filter all nil elements from ITEMS and join the remaining ones
 570 with separator \"\n\"."
 571   (let ((filtered-items (remq nil items)))
 572     (and filtered-items (mapconcat 'identity filtered-items "\n"))))
 573
 574 (defun org-taskjuggler-get-attributes (item attributes)
 575   "Return all attribute as a single formated string. ITEM is an
 576 alist representing either a resource or a task. ATTRIBUTES is a
 577 list of symbols. Only entries from ITEM are considered that are
 578 listed in ATTRIBUTES."
 579   (org-taskjuggler-filter-and-join
 580    (mapcar
 581     (lambda (attribute)
 582       (org-taskjuggler-filter-and-join
 583        (org-taskjuggler-get-attribute item attribute)))
 584     attributes)))
 585
 586 (defun org-taskjuggler-get-attribute (item attribute)
 587   "Return a list of strings containing the properly formatted
 588 taskjuggler declaration for a given ATTRIBUTE in ITEM (an alist).
 589 If the ATTRIBUTE is not in ITEM return nil."
 590   (cond
 591    ((null item) nil)
 592    ((equal (symbol-name attribute) (car (car item)))
 593     (cons (format "%s %s" (symbol-name attribute) (cdr (car item)))
 594           (org-taskjuggler-get-attribute (cdr item) attribute)))
 595    (t (org-taskjuggler-get-attribute (cdr item) attribute))))
 596
 597 (defun org-taskjuggler-open-resource (resource)
 598   "Insert the beginning of a resource declaration. All valid
 599 attributes from the RESOURCE alist are inserted. If the RESOURCE
 600 defines a property \"resource_id\" it will be used as the id for
 601 this resource. Otherwise it will use the ID property. If neither
 602 is defined it will calculate a unique id for the resource using
 603 `org-taskjuggler-get-unique-id'."
 604   (let ((id (org-taskjuggler-clean-id
 605              (or (cdr (assoc "resource_id" resource))
 606                  (cdr (assoc "ID" resource))
 607                  (cdr (assoc "unique-id" resource)))))
 608         (headline (cdr (assoc "headline" resource)))
 609         (attributes '(limits vacation shift booking efficiency journalentry rate)))
 610     (insert
 611      (concat
 612       "resource " id " \"" headline "\" {\n "
 613       (org-taskjuggler-get-attributes resource attributes) "\n"))))
 614
 615 (defun org-taskjuggler-clean-effort (effort)
 616   "Translate effort strings into a format acceptable to taskjuggler,
 617 i.e. REAL UNIT. A valid effort string can be anything that is
 618 accepted by `org-duration-string-to-minutes´."
 619   (cond
 620    ((null effort) effort)
 621    (t (let* ((minutes (org-duration-string-to-minutes effort))
 622              (hours (/ minutes 60.0)))
 623         (format "%.1fh" hours)))))
 624
 625 (defun org-taskjuggler-get-priority (priority)
 626   "Return a priority between 1 and 1000 based on PRIORITY, an
 627 org-mode priority string."
 628   (max 1 (/ (* 1000 (- org-lowest-priority (string-to-char priority)))
 629             (- org-lowest-priority org-highest-priority))))
 630
 631 (defun org-taskjuggler-open-task (task)
 632   (let* ((unique-id (cdr (assoc "unique-id" task)))
 633          (headline (cdr (assoc "headline" task)))
 634          (effort (org-taskjuggler-clean-effort (cdr (assoc org-effort-property task))))
 635          (depends (cdr (assoc "depends" task)))
 636          (allocate (cdr (assoc "allocate" task)))
 637          (priority-raw (cdr (assoc "PRIORITY" task)))
 638          (priority (and priority-raw (org-taskjuggler-get-priority priority-raw)))
 639          (state (cdr (assoc "TODO" task)))
 640          (complete (or (and (member state org-done-keywords) "100")
 641                        (cdr (assoc "complete" task))))
 642          (parent-ordered (cdr (assoc "parent-ordered" task)))
 643          (previous-sibling (cdr (assoc "previous-sibling" task)))
 644          (milestone (or (cdr (assoc "milestone" task))
 645                         (and (assoc "leaf-node" task)
 646                              (not (or effort
 647                                       (cdr (assoc "duration" task))
 648                                       (cdr (assoc "end" task))
 649                                       (cdr (assoc "period" task)))))))
 650          (attributes
 651           '(account start note duration endbuffer endcredit end
 652                     flags journalentry length maxend maxstart minend
 653                     minstart period reference responsible scheduling
 654                     startbuffer startcredit statusnote)))
 655     (insert
 656      (concat
 657       "task " unique-id " \"" headline "\" {\n"
 658       (if (and parent-ordered previous-sibling)
 659           (format " depends %s\n" previous-sibling)
 660         (and depends (format " depends %s\n" depends)))
 661       (and allocate (format " purge %s\n allocate %s\n"
 662                             (or (and (org-taskjuggler-targeting-tj3-p) "allocate")
 663                                 "allocations")
 664                             allocate))
 665       (and complete (format " complete %s\n" complete))
 666       (and effort (format " effort %s\n" effort))
 667       (and priority (format " priority %s\n" priority))
 668       (and milestone (format " milestone\n"))
 669
 670       (org-taskjuggler-get-attributes task attributes)
 671       "\n"))))
 672
 673 (defun org-taskjuggler-close-maybe (level)
 674   (while (> org-export-taskjuggler-old-level level)
 675     (insert "}\n")
 676     (setq org-export-taskjuggler-old-level (1- org-export-taskjuggler-old-level)))
 677   (when (= org-export-taskjuggler-old-level level)
 678     (insert "}\n")))
 679
 680 (defun org-taskjuggler-insert-reports ()
 681   (let (report)
 682     (dolist (report org-export-taskjuggler-default-reports)
 683       (insert report "\n"))))
 684
 685 (provide 'org-taskjuggler)
 686
 687 ;;; org-taskjuggler.el ends here