---- On Mon, 10 Jun 2024 04:33:26 +0200 Suhail Singh wrote --- > On my system both "shell" and "bash" language blocks use "bash"
> However, the value of org-babel-header-args:lang differs: > > #+begin_src emacs-lisp :results value replace verbatim > org-babel-header-args:shell > #+end_src > > #+RESULTS: > : ((async (yes no))) > > #+begin_src emacs-lisp :results value replace verbatim > org-babel-header-args:bash > #+end_src > > #+RESULTS: > : nil > > Is this a bug, or are async blocks only currently allowed in "shell" > language blocks and not "bash" language blocks? Thank you for your message! :async should work for all shell types. Are you finding that it's not? In practice, anything but a "no" or "none" for :async should work (see "org-babel-comint-use-async"). For example, the following should run the block asynchronously: #+begin_src bash :session *my-bash* :async banana echo "hi" sleep 3 echo "bye" #+end_src All shell languages use the "explicit-shell-file-name" to define a comint buffer using the "shell" command. For "shell" blocks, Babel uses whatever the user has set for "explicit-shell-file-name", most likely "shell-file-name" which defaults to /bin/sh. Many systems symlink /bin/sh to bash for interactive shells. I suspect this is what's happening on your system. You can check this with something like 'ls -la' or 'readlink $(which sh)'. For all other shell languages, "explicit-shell-file-name" gets set to the block language name, literally, when "org-babel-shell-initialize" is called, such as when ob-shell is first loaded. That word, such as "bash", will resolve according to, I believe, "exec-path" (which is basically PATH). Regarding org-babel-header-args, "org-babel-header-args:shell" is explicitly set to '((async . ((yes no)))), it seems, to quiet the linter (https://git.savannah.gnu.org/cgit/emacs/org-mode.git/commit/?id=40d1352b). For other languages, such as "org-babel-header-args:bash", it's set to nil. AFAICT, what you see are simply the default values. I'm curious, what caused you to notice this inconsistency? -- Matt Trzcinski Emacs Org contributor (ob-shell) Learn more about Org mode at https://orgmode.org Support Org development at https://liberapay.com/org-mode
