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* julia-vterm * julia-vterm
Julia-vterm provides a major-mode for inferior Julia process that runs in vterm, and a minor-mode that extends julia-mode with the ability to interact with the inferior Julia process. Julia-vterm provides a major-mode for an inferior Julia process (or REPL) that runs in vterm, and a minor-mode that extends julia-mode with the ability to interact with the inferior Julia process.
** Should I use this? The functionalities required for basic REPL interaction have been implemented. While I would like to keep this package simple, suggestions are always welcome.
There's [[https://github.com/tpapp/julia-repl][julia-repl]]. But it had a display performance issue due to the limited performance of its backend terminal emulator, term.el. That's the reason why I made julia-vterm. Actually, julia-repl seems to have added support for vterm in January 2021, so I think one doesn't need to choose julia-vterm for display performance now. If you want to use Julia with [[https://orgmode.org/worg/org-contrib/babel/][Org Babel]], please consider trying [[https://github.com/shg/ob-julia-vterm.el][ob-julia-vterm]]. It uses Julia-vterm and provides a solid babel development experience with session and asynchronous execution support.
Another possible reason might be Org Babel support by [[https://github.com/shg/ob-julia-vterm.el][ob-julia-vterm]]. It is still under development but you might be interested.
Currently, julia-vterm offers minimum functionalities for basic interaction with the REPL. A few more functions may be added in the future, but you may want to check julia-repl if you need more features. If the simplicity of this package fits your preference, please give it a try!
** Installation ** Installation
Just install it from MELPA. The package name is =julia-vterm=. You can install this package from MELPA. The package name is =julia-vterm=.
Then, evaluate the following add-hook line to turn on julia-vterm-mode in newly opened julia-mode buffers. A symbol "⁂" in the mode line indicates that the julia-mode buffer is ready to interact with the vterm-powered Julia REPL. Add this line to your init file to enable julia-vterm-mode in future sessions. For manual installation, download =julia-vterm.el= into somewhere in your local directory and use =package-install-file= command. Please make sure [[https://github.com/JuliaEditorSupport/julia-emacs][julia-mode]] and [[https://github.com/akermu/emacs-libvterm][emacs-libvterm]] are installed and configured properly.
Turn on =julia-vterm-mode= in a =julia-mode= buffer to use this package. A symbol “⁂” in the mode line indicates that the julia-mode buffer is ready to interact with the julia-vterm REPL. Add the following line to your init file to automatically enable =julia-vterm-mode= in =julia-mode= buffers.
#+BEGIN_SRC emacs-lisp #+BEGIN_SRC emacs-lisp
(add-hook 'julia-mode-hook #'julia-vterm-mode) (add-hook 'julia-mode-hook #'julia-vterm-mode)
#+END_SRC #+END_SRC
You can install the package manually if necessary. First make sure [[https://github.com/JuliaEditorSupport/julia-emacs][julia-mode]] and [[https://github.com/akermu/emacs-libvterm][emacs-libvterm]] are installed and working properly. Download =julia-vterm.el= into somewhere in your local directory and install it with the following. You also need to configure the hook described above. By default, the command named =julia= in your =PATH= is used. You can also specify a Julia executable by setting the =julia-vterm-repl-program= variable to the absolute path to it. The variable can contain switches for the julia command. For example, you can use julia command at a certain path, with 4 threads enabled, by the line like the following.
#+BEGIN_SRC emacs-lisp
(package-install-file "/path/to/julia-vterm.el")
#+END_SRC
By default, the command named =julia= in your =PATH= is used. If you want to specify a different location, add the directory to the =PATH= environment variable or set the =julia-vterm-repl-program= variable to the absolute path to the command. You can also pass parameters to the command by the variable. For example, you can use julia command in a certain path, with 4 threads enabled, by the line like the following.
#+BEGIN_SRC emacs-lisp #+BEGIN_SRC emacs-lisp
(setq julia-vterm-repl-program "/path/to/julia -t 4") (setq julia-vterm-repl-program "/path/to/julia -t 4")
@ -39,32 +31,60 @@ By default, the command named =julia= in your =PATH= is used. If you want to spe
** How to use ** How to use
In a julia script buffer with =julia-vterm-mode= on, you can open an inferior Julia REPL buffer with =M-x julia-vterm-switch-to-repl-buffer= (or =C-c C-z=). In a julia script buffer with =julia-vterm-mode= on, you can open an inferior Julia REPL buffer with =M-x julia-vterm-switch-to-repl-buffer= (or =C-c C-z=). See below for other commands.
** Key bindings ** Key bindings
*** =julia-mode= with =julia-vterm-mode= enabled *** julia-vterm-mode
| Key | Binding | #+begin_example
|------------+-----------------------------------------| Key Command / Description
| =C-c C-z= | =julia-vterm-switch-to-repl-buffer= | ------------------------------------------------------------------------------------------------
| =C-<return>= | =julia-vterm-send-region-or-current-line= | C-c C-z julia-vterm-switch-to-repl-buffer
| =C-c C-b= | =julia-vterm-send-buffer= | Switch to the paired REPL buffer or to the one with a specified session name.
| =C-c C-i= | =julia-vterm-send-include-buffer-file= | With prefix ARG, prompt for session name.
| =C-c C-d= | =julia-vterm-send-cd-to-buffer-directory= |
*** =julia-vterm-repl-mode= C-<return> julia-vterm-send-region-or-current-line
Send the content of the region if the region is active, or send the current line.
| Key | Binding | C-c C-b julia-vterm-send-buffer
|---------+------------------------------------------| Send the whole content of the script buffer to the Julia REPL line by line.
| =C-c C-z= | =julia-vterm-repl-switch-to-script-buffer= |
| =M-k= | =julia-vterm-repl-clear-buffer= |
| =C-c C-t= | =julia-vterm-repl-copy-mode= |
*** =julia-vterm-repl-mode= (copy mode) C-c C-i julia-vterm-send-include-buffer-file
Send a line to evaluate the buffer's file using include() to the Julia REPL.
With prefix ARG, Revise.includet() is used instead.
| Key | Binding | C-c C-d julia-vterm-send-cd-to-buffer-directory
|----------+---------------------------------| Send cd() function call to the Julia REPL to change the current working directory of
| =C-c C-t= | =julia-vterm-repl-copy-mode= | REPL to the buffer's directory.
| =<return>= | =julia-vterm-repl-copy-mode-done= | #+end_example
| =C-c C-r= | =vterm-reset-cursor-point= |
*** julia-vterm-repl-mode
#+begin_example
Key Command / Description
------------------------------------------------------------------------------------------------
C-c C-z julia-vterm-repl-switch-to-script-buffer
Switch to the script buffer that is paired with the current Julia REPL buffer.
M-k julia-vterm-repl-clear-buffer
Clear the content of the Julia REPL buffer.
C-c C-t julia-vterm-repl-copy-mode
Enter copy mode.
#+end_example
*** julia-vterm-repl-mode (copy mode)
#+begin_example
Key Command / Description
------------------------------------------------------------------------------------------------
C-c C-t julia-vterm-repl-copy-mode
Exit copy mode.
<return> julia-vterm-repl-copy-mode-done
Copy the region to the kill ring and exit copy mode.
C-c C-r vterm-reset-cursor-point
Call the vterm command that moves point to where it should be.
#+end_example