Emacs 29.4
Org mode version 9.6.15
*Summary*
File‑level `#+PROPERTY header‑args` are parsed by `org-collect-keywords`,
but `org-babel-params-from-properties` returns `(nil nil)` in new Org
buffers until `org-set-regexps-and-options` is called. This causes Babel to
ignore `#+PROPERTY header‑args` (e.g. `:tangle`) and tangle nothing.
Here's a minimal repro file:
``
#+property: header-args:sh :tangle (concat (file-name-sans-extension
(buffer-file-name)) ".sh")
#+begin_src sh
echo hi
#+end_src
``
*Steps*
1. Open the file in a fresh Org buffer.
2. Evaluating `(org-collect-keywords '("PROPERTY"))` returns the property
entry.
3. Evaluating `(org-babel-params-from-properties "sh")` returns `(nil nil)`.
4. `C-c C-v t` reports “Tangled 0 code blocks”.
5. Evaluate `(org-set-regexps-and-options)`
6. Evaluating `(org-babel-params-from-properties "sh")` again returns
header‑args.
7. Tangling again succeeds.
*Expected*
`org-babel-params-from-properties` should see `#+PROPERTY header‑args`
without needing an explicit refresh.
*Actual*
Babel ignores file‑level `#+PROPERTY header‑args` in a new buffer until
`org-set-regexps-and-options` is called.
*Notes*
According to the Org manual [1], `#+PROPERTY header‑args` should apply to
the buffer. (https://orgmode.org/manual/Using-Header-Arguments.html)
It looks like `keyword‑property` cache is not being populated for new
buffers:
1. `org-babel-params-from-properties` calls `org-entry-get` to read
`header-args` and `header-args:<lang>`.
2. `org-entry-get` can only see file‑level `#+PROPERTY keywords` if
`org-keyword-properties` is populated for the buffer.
3. In this case,
- `(org-collect-keywords '("PROPERTY"))` does see the property.
- `(org-babel-params-from-properties "sh")` returns `(nil nil)`.
4. After running `(org-set-regexps-and-options)`,
`org-babel-params-from-properties` starts seeing the property, and tangling
works.
Please let me know if there's anything else I can provide.
Matthew
installation:
==============
Emacs : GNU Emacs 29.4 (build 1, aarch64-apple-darwin24.5.0, Carbon
Version 170 AppKit 2575.6)
of 2025-06-09
Package: Org mode version 9.6.15 (release_9.6.15 @
/Applications/Emacs.app/Contents/Resources/lisp/org/)
current state:
==============
(setq
org-link-elisp-confirm-function 'yes-or-no-p
org-bibtex-headline-format-function #[257 "\300 \236A\207" [:title] 3
"\n\n(fn ENTRY)"]
org-persist-after-read-hook '(org-element--cache-persist-after-read)
org-export-before-parsing-hook '(org-attach-expand-links)
org-cycle-tab-first-hook '(org-babel-hide-result-toggle-maybe
org-babel-header-arg-expand)
org-archive-hook '(org-attach-archive-delete-maybe)
org-cycle-hook '(org-cycle-hide-archived-subtrees
org-cycle-show-empty-lines
org-cycle-optimize-window-after-visibility-change
org-cycle-display-inline-images)
org-persist-before-read-hook '(org-element--cache-persist-before-read)
org-mode-hook '(#[0 "\300\301\302\303\304$\207"
[add-hook change-major-mode-hook org-fold-show-all append
local]
5]
#[0 "\300\301\302\303\304$\207"
[add-hook change-major-mode-hook org-babel-show-result-all
append local]
5]
org-babel-result-hide-spec org-babel-hide-all-hashes)
org-confirm-shell-link-function 'yes-or-no-p
outline-isearch-open-invisible-function 'outline-isearch-open-invisible
org-agenda-before-write-hook '(org-agenda-add-entry-text)
org-src-mode-hook '(org-src-babel-configure-edit-buffer
org-src-mode-configure-edit-buffer)
org-confirm-elisp-link-function 'yes-or-no-p
org-speed-command-hook '(org-speed-command-activate
org-babel-speed-command-activate)
org-persist-directory
"/var/folders/91/47hzjcs54sx92vj3fk6z010m0000gn/T/org-persist-CbFdOK"
org-fold-core-isearch-open-function 'org-fold-core--isearch-reveal
org-persist-before-write-hook '(org-element--cache-persist-before-write)
org-tab-first-hook '(org-babel-hide-result-toggle-maybe
org-babel-header-arg-expand)
org-link-shell-confirm-function 'yes-or-no-p
org-babel-pre-tangle-hook '(save-buffer)
org-agenda-loop-over-headlines-in-active-region nil
org-occur-hook '(org-first-headline-recenter)
org-metadown-hook '(org-babel-pop-to-session-maybe)
org-link-parameters '(("attachment" :follow org-attach-follow :complete
org-attach-complete-link)
("id" :follow org-id-open)
("eww" :follow org-eww-open :store org-eww-store-link)
("rmail" :follow org-rmail-open :store
org-rmail-store-link)
("mhe" :follow org-mhe-open :store org-mhe-store-link)
("irc" :follow org-irc-visit :store org-irc-store-link
:export org-irc-export)
("info" :follow org-info-open :export org-info-export
:store org-info-store-link :insert-description
org-info-description-as-command)
("gnus" :follow org-gnus-open :store
org-gnus-store-link)
("docview" :follow org-docview-open :export
org-docview-export :store org-docview-store-link)
("bibtex" :follow org-bibtex-open :store
org-bibtex-store-link)
("bbdb" :follow org-bbdb-open :export org-bbdb-export
:complete org-bbdb-complete-link :store
org-bbdb-store-link)
("w3m" :store org-w3m-store-link)
("doi" :follow org-link-doi-open :export
org-link-doi-export)
("file+sys") ("file+emacs")
("shell" :follow org-link--open-shell)
("news" :follow
#[514 "\301\300\302 Q \"\207"
["news" browse-url ":"] 6 "\n\n(fn URL ARG)"]
)
("mailto" :follow
#[514 "\301\300\302 Q \"\207"
["mailto" browse-url ":"] 6 "\n\n(fn URL ARG)"]
)
("https" :follow
#[514 "\301\300\302 Q \"\207"
["https" browse-url ":"] 6 "\n\n(fn URL ARG)"]
)
("http" :follow
#[514 "\301\300\302 Q \"\207"
["http" browse-url ":"] 6 "\n\n(fn URL ARG)"]
)
("ftp" :follow
#[514 "\301\300\302 Q \"\207" ["ftp" browse-url ":"]
6 "\n\n(fn URL ARG)"]
)
("help" :follow org-link--open-help :store
org-link--store-help)
("file" :complete org-link-complete-file)
("elisp" :follow org-link--open-elisp))
org-metaup-hook '(org-babel-load-in-session-maybe)
)
