Hi all, I hit the problem described in https://www.mail-archive.com/emacs-orgmode@gnu.org/msg127317.html - I couldn't see that anyone else had fixed it so I had a go.
The problem is that, unusually, ob-lilypond has some conditional logic on its header-args. Its solution is to set the header-args internally when required, which overrides any user-specified value. The quickest way I could see to preserve the conditional logic was to add a new variable to hold the user configuration, which I called ob-lilypond-header-args. Now the conditional logic sets org-babel-header-args:lilypond to the new variable's value when appropriate. Another way would be to create a context which sets the variable when needed and then resets it. I opted against this as I'm not sure it would have the same behaviour in all cases. Happy to have a go if it would be preferable, though. Cheers, Jamie
From f413a36ac9b7ca7c990ee1ab6456cc237ebccf3d Mon Sep 17 00:00:00 2001 From: Jamie Bayne <jamieba...@hotmail.com> Date: Sat, 2 Jan 2021 02:18:37 +0000 Subject: [PATCH] Allow user to set ob-lilypond header arguments * ob-lilypond.el (org-babel-lilypond-set-header-args): Replace hard-coded settings with user-configurable variable. (org-babel-header-args:lilypond): Modify documentation. (ob-lilypond-header-args): New variable. TINYCHANGE --- lisp/ob-lilypond.el | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/lisp/ob-lilypond.el b/lisp/ob-lilypond.el index fbdd905a5..11ae9ae88 100644 --- a/lisp/ob-lilypond.el +++ b/lisp/ob-lilypond.el @@ -43,6 +43,15 @@ (defvar org-babel-default-header-args:lilypond '() "Default header arguments for lilypond code blocks. NOTE: The arguments are determined at lilypond compile time. +See `org-babel-lilypond-set-header-args' +To configure, see `ob-lilypond-header-args' +.") + +(defvar ob-lilypond-header-args + '((:results . "file") (:exports . "results")) + "User-configurable header arguments for lilypond code blocks. +NOTE: The final value used by org-babel is computed at compile-time +and stored in `org-babel-default-header-args:lilypond' See `org-babel-lilypond-set-header-args'.") (defvar org-babel-lilypond-compile-post-tangle t @@ -403,9 +412,8 @@ These depend upon whether we are in Arrange mode i.e. MODE is t." (:results . "silent") (:cache . "yes") (:comments . "yes"))) - (t - '((:results . "file") - (:exports . "results"))))) + (t + ob-lilypond-header-args))) (defun org-babel-lilypond-set-header-args (mode) "Set org-babel-default-header-args:lilypond -- 2.29.2