* Persisting the current working directory in an org-babel session
@ 2023-01-01 12:34 Adam Sneller
2023-01-01 13:19 ` Ihor Radchenko
0 siblings, 1 reply; 2+ messages in thread
From: Adam Sneller @ 2023-01-01 12:34 UTC (permalink / raw)
To: emacs-orgmode
For some reason, I am unable to make changes to my working directory persist, from one emacs-lisp SRC block to the next.
For example, consider the following:
* Literate programming in a single session
:PROPERTIES:
:header-args: :var DIR="/Users/adam/Desktop/test"
:END:
#+BEGIN_SRC emacs-lisp :session *elisp*
(cd DIR)
#+END_SRC
#+RESULTS:
: /Users/adam/Desktop/test/
#+BEGIN_SRC emacs-lisp :session *elisp*
(cd ".")
#+END_SRC
#+RESULTS:
: /Users/adam/org/
The :header-args: define a starting directory (DIR="/Users/adam/Desktop/test"). The first block establishes the *elisp* session and navigates into DIR, using (cd DIR). Confirmation is then seen in the #+RESULTS.
A second block is then created in the same *elisp* session. This simply echos the current working directory with (cd "."). BUT... the #+RESULTS show that the working directory has not persisted from our first block and has instead, defaulted to the default org-mode directory.
Now, I realise that I could have used :dir in my initial :header-args: to set the same working directory for all blocks. But what I am interested in is why my changes are not persisting, when (if I am not mistaken) this is the entire point of establishing a session?
Thanks!
Adam Sneller
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Persisting the current working directory in an org-babel session
2023-01-01 12:34 Persisting the current working directory in an org-babel session Adam Sneller
@ 2023-01-01 13:19 ` Ihor Radchenko
0 siblings, 0 replies; 2+ messages in thread
From: Ihor Radchenko @ 2023-01-01 13:19 UTC (permalink / raw)
To: Adam Sneller; +Cc: emacs-orgmode
Adam Sneller <adam@earth2adam.com> writes:
> For some reason, I am unable to make changes to my working directory persist, from one emacs-lisp SRC block to the next.
>
> For example, consider the following:
>
> * Literate programming in a single session
> :PROPERTIES:
> :header-args: :var DIR="/Users/adam/Desktop/test"
> :END:
>
> #+BEGIN_SRC emacs-lisp :session *elisp*
> (cd DIR)
> #+END_SRC
>
> #+RESULTS:
> : /Users/adam/Desktop/test/
>
>
> #+BEGIN_SRC emacs-lisp :session *elisp*
> (cd ".")
> #+END_SRC
>
> #+RESULTS:
> : /Users/adam/org/
Confirmed.
This is because `org-babel-execute-src-block' let-binds
`default-directory'. So, your changes to it are only affecting lexical
scope.
Fixes welcome!
--
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>
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