Re: Bug in Sticky Agendas

[Ian Dunn <dunni@gnu.org>]

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>>>>> "Ian" == Ian Dunn <dunni@gnu.org> writes:

    Ian>     I've got a few tasks that I don't want appearing in the
    Ian> daily agenda, so I tag them with agenda_exclude and set
    Ian> org-agenda-skip-function to skip any entries with that tag for
    Ian> my daily agenda:

    Ian> (defun id/org-skip-by-tag (&rest tags) (if (not (apply
    Ian> 'org-entry-has-tags-p tags)) nil (save-excursion
    Ian> (outline-next-visible-heading 1) (point))))

    Ian> (let* ((agenda-skip '(org-agenda-skip-function (lambda nil
    Ian> (id/org-skip-by-tag "agenda_exclude"))))) (setq
    Ian> org-agenda-custom-commands `(("d" "Day View" agenda ""
    Ian> ((org-agenda-span 'day) ,agenda-skip)) ("T" . "Tags View")
    Ian> ("Tn" "Nightly" tags-todo "nightly&TODO==\"TODO\""))))

    Ian> As you can see, I've got a second agenda view for my nightly
    Ian> checklist.  So here's my problem: the skip-function is unset if
    Ian> I try using the nightly view.

I went ahead and looked into this myself.  Looks like the issue is that the properties (lprops) are set using symbol properties with org-agenda-redo-command, which is buffer-local.  However, according to the elisp manual (at least for the upcoming 26.1 release), symbol properties aren't buffer-local; only the value itself is.  Thus, lprops are overridden by a new agenda.

I've created the following patch to address this.  The symbol property is used as a temporary variable, but the actual lprops are stored as a buffer-local variable to each agenda buffer.


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diff --git a/lisp/org-agenda.el b/lisp/org-agenda.el
index a9ebb793b..5226ef486 100644
--- a/lisp/org-agenda.el
+++ b/lisp/org-agenda.el
@@ -2142,6 +2142,7 @@ When nil, `q' will kill the single agenda buffer."
 (defvar org-agenda-this-buffer-is-sticky nil)
 (defvar org-agenda-last-indirect-buffer nil
   "Last buffer loaded by `org-agenda-tree-to-indirect-buffer'.")
+(defvar org-agenda-lprops nil)
 
 (defconst org-agenda-local-vars
   '(org-agenda-this-buffer-name
@@ -2170,6 +2171,7 @@ When nil, `q' will kill the single agenda buffer."
     org-agenda-filtered-by-category
     org-agenda-filter-form
     org-agenda-cycle-counter
+    org-agenda-lprops
     org-agenda-last-prefix-arg)
   "Variables that must be local in agenda buffers to allow multiple buffers.")
 
@@ -3749,6 +3751,10 @@ FILTER-ALIST is an alist of filters we need to apply when
 	      (org-uniquify org-done-keywords-for-agenda))
 	(setq org-agenda-last-prefix-arg current-prefix-arg)
 	(setq org-agenda-this-buffer-name org-agenda-buffer-name)
+	;; Don't set these until we know we're in the agenda buffer,
+	;; and we know they're valid.
+	(setq org-agenda-lprops (or org-agenda-lprops
+				    (get 'org-agenda-redo-command 'org-lprops)))
 	(and name (not org-agenda-name)
 	     (setq-local org-agenda-name name)))
       (setq buffer-read-only nil))))
@@ -7312,7 +7318,7 @@ in the agenda."
 	 (cols org-agenda-columns-active)
 	 (line (org-current-line))
 	 (window-line (- line (org-current-line (window-start))))
-	 (lprops (get 'org-agenda-redo-command 'org-lprops))
+	 (lprops org-agenda-lprops)
 	 (redo-cmd (get-text-property p 'org-redo-cmd))
 	 (last-args (get-text-property p 'org-last-args))
 	 (org-agenda-overriding-cmd (get-text-property p 'org-series-cmd))

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-- 
Ian Dunn