I have a new workaround, which is to configure conda to not change the prompt.
conda config --set changeps1 false
As discussed elsewhere:
Do not modify prompt by default #10928
https://github.com/conda/conda/issues/10928
I generally would not want to do this in normal interactive use, but in this
context, am going to proceed.
I think it is preferable to trying to improve on prompt tracking. That appears
just to lead to more convolutions.
Thoughts?
> # -*- org-confirm-babel-evaluate: nil; -*-
>
> Excuse the top-posting. I’m reviving two old-ish threads and felt it best.
>
> I have been struggling with interrelated issues raised in
>
> - https://list.orgmode.org/87jznda90u.fsf@localhost/#t
> - https://list.orgmode.org/87le1bc8j3.fsf@localhost/
>
> I expect I am using all the patches offered in addressing these given my
> recent
> build from main. However, in my hands, I find they still easily allow for
> mistakes identifying prompts in code block results.
>
> In this demonstration, I am extending the approach to inquiry begun by Jack
> in https://list.orgmode.org/87ttzn1mai....@gmail.com/
>
> #+begin_src emacs-lisp
> (emacs-version)
> #+end_src
>
> #+RESULTS:
> : GNU Emacs 31.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo version
> 1.15.12, Xaw3d scroll bars)
> : of 2024-09-04
>
> #+begin_src emacs-lisp
> (org-version nil t)
> #+end_src
>
> #+RESULTS:
> : Org mode version 9.7.13 (9.7.13-8566bc @ /home/mec/.emacs.d/elpa/org-
> 9.7.13/)
>
>
>
> #+begin_src emacs-lisp
> (org-babel-do-load-languages
> 'org-babel-load-languages
> '((shell . t)))
> #+end_src
>
> #+RESULTS:
>
> Here I define two org code blocks I will use repeatedly below:
>
> #+name:test_filter
> #+begin_src shell :session *shell* :results output
> printf "a\nb\nc\n>d\n<e\nf>\nggg ggg>\nhhh hhh+\na\n"
> #+end_src
>
> #+name:shell_prompt_info
> #+begin_src elisp
> (with-current-buffer "*shell*"
> (format "[comint-prompt-regexp]=[%s]\n[org-babel-comint-prompt-regexp-
> old]=[%s]" comint-prompt-regexp org-babel-comint-prompt-regexp-old))
> #+end_src
>
> #+caption: The results looks good - the output apparently is not confused as
> being prompt.
> #+call: test_filter()
>
> #+RESULTS:
> : a
> : b
> : c
> : >d
> : <e
> : f>
> : ggg ggg>
> : hhh hhh+
> : a
>
> #+caption: take a look at the prompt variables.
> #+call:shell_prompt_info()
>
> #+RESULTS:
> : [comint-prompt-regexp]=[^org_babel_sh_prompt> *]
> : [org-babel-comint-prompt-regexp-old]=[^[^#$%>
> : ]*[#$%>] *]
>
> #+caption: check on conda's availabiity & version #+begin_src shell :session
> *shell* :results output conda --version #+end_src
>
> #+RESULTS:
> : conda 24.7.1
>
> #+begin_src shell :session *shell* :results output conda create --yes --name
> myenv python=3.9 #+end_src
>
> #+RESULTS:
> #+begin_example
> ... abbreviated...
>
> To activate this environment, use
>
> conda activate myenv
>
> To deactivate an active environment, use
>
> conda deactivate
> #+end_example
>
> #+begin_src shell :session *shell* :results output
> conda activate myenv
> #+end_src
>
> #+RESULTS:
>
> #+begin_src shell :session *shell* :results output which python #+end_src
>
> #+RESULTS:
> : /n/projects/mec/SRSCHPC2/local/inst/Mambaforge/24.3.0-
> 0/envs/myenv/bin/python
>
> #+caption: alas, the output of test_filter is changed. Some lines are gone
> missing and some are changed.
> #+call: test_filter()
>
> #+RESULTS:
> : a
> : b
> : c
> : d
> : <e
> :
> : hhh hhh+
> : a
>
> #+caption: Observe the prompts have changed. Perhaps this is related issue?
> #+call:shell_prompt_info()
>
> #+RESULTS:
> : [comint-prompt-regexp]=[^[^#$%>
> : ]*[#$%>] *]
> : [org-babel-comint-prompt-regexp-old]=[^org_babel_sh_prompt> *]
>
> #+caption: can we restore by deactivating the environment?
> #+begin_src shell :session *shell* :results output
> conda deactivate
> #+end_src
>
> #+RESULTS:
>
> #+caption: alas, no:
> #+call: test_filter()
>
> #+RESULTS:
> : a
> : b
> : c
> : d
> : <e
> :
> : hhh hhh+
> : a
>
> #+caption: how about by resetting the prompt #+begin_src shell :session
> *shell* :results output
> PROMPT_COMMAND=;PS1="org_babel_sh_prompt> ";PS2= #+end_src
>
> #+RESULTS:
>
> #+caption: alas, again, no
> #+call: test_filter()
> #+RESULTS:
> : a
> : b
> : c
> : d
> : <e
> :
> : hhh hhh+
> : a
>
> #+caption: perhaps restoring the prompt variables will recover?
> #+begin_src elisp
> (with-current-buffer "*shell*"
> (setq-local comint-prompt-regexp "^org_babel_sh_prompt> *"
> org-babel-comint-prompt-regexp-old "[^[^#$%> ]*[#$%>] *"))
> #+end_src
>
> #+RESULTS:
> : [^[^#$%>
> : ]*[#$%>] *
>
> #+caption: YES!
> #+call: test_filter()
>
> #+RESULTS:
> : a
> : b
> : c
> : >d
> : <e
> : f>
> : ggg ggg>
> : hhh hhh+
> : a
>
> I'm unsure what change this argues for, but I think it pretty clearly
> demonstrates the ongoing issue.
>
> In the above, I am exclusively allowing org/ob/comint to "own" the shell
> buffer, and not interact with it, as recommended earlier by Ivor.
>
> I have tried the above after first calling `(shell)` and find variations on
> the
> above occur. I would like to be able to 'share' the
> *shell* buffer with org/ob/comint but expect resolving the non-interactive
> case should possibly lay foundation.
>
> I would additional like to layer in working with remote shells (e.g. `:dir
> "/ssh:me@host:~/`) and have tried but this is just layering in complexity on
> the localhost case so I'm backing off for now.
>
> What else can I report or test?
