Re: [BUG] Source block indentation does not work properly for yaml-mode [9.6.6 ( @ /home/user/.emacs.d/elpa/org-9.6.6/)]

[Ihor Radchenko]

Sébastien Miquel <sebastien.miquel@posteo.eu> writes:

> From 9d31a71bc0ab7cfd466ecad60037d00c62bdd9f6 Mon Sep 17 00:00:00 2001
> From: =?UTF-8?q?S=C3=A9bastien=20Miquel?= <sebastien.miquel@posteo.eu>
> Date: Tue, 27 Jun 2023 09:23:01 +0200
> Subject: [PATCH] org-src.el: Use native value of `indent-tabs-mode' for
>  indentation

Thanks! This looks good and also fixes the original issue raised in this
thread.

May you now rebase the patch onto the latest main, add a Link: to this
discussion to the commit message, and apply the attached extra comments?

diff --git a/lisp/org-src.el b/lisp/org-src.el
index 20e0b598c..e1f7d50dc 100644
--- a/lisp/org-src.el
+++ b/lisp/org-src.el
@@ -479,6 +479,8 @@ (defun org-src--contents-for-write-back (write-back-buf)
                            (buffer-substring eol (point-max))))))
        (write-back org-src--allow-write-back)
         marker indent-str)
+    ;; Compute the exact sequence of tabs and spaces used to indent up
+    ;; to `indentation-offset' in the Org buffer.
     (setq indent-str
           (with-temp-buffer
             ;; Reproduce indentation parameters from org buffer.
@@ -500,6 +502,9 @@ (defun org-src--contents-for-write-back (write-back-buf)
         ;; first line.
         (when preserve-fl (forward-line))
         (while (not (eobp))
+          ;; Keep empty src lines empty, even when src block is
+          ;; indented on Org side.
+          ;; See 
https://list.orgmode.org/725763.1632663635@apollo2.minshall.org/T/
           (when (not (eolp)) (insert indent-str)) ; not an empty line
          (forward-line)))
       (set-marker marker nil))))

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>