there is a bunch of interactive functions which take string input as an argument:
(defun zb/run-cmd-X (arg1 argN)
(interactive "Marg1: Marg2: ")
;;; some logic
How to make each of such functions zb/run-cmd-1..zb/run-cmd-N have own independent history of input arguments arg1...argN? And it would be perfect if this history was persistent between Emacs launches (ideally somewhere in an external file; for sync).
Is there any ready solution for this?
Thanks
Basically you want to read the documentation for read-from-minibuffer and completing-read regarding the HIST argument which each of those functions accepts. There are other functions with history support of course, but these two are the standard/basic options.
Persistence is provided for by the savehist library, which writes to the file in savehist-file (which by default is ~/.emacs.d/history, but the old ~/.emacs-history will be used instead if that file exists -- in which case you might want to rename it to the modern preferred path).
Here's an example:
(defvar my-ssh-history nil)
(eval-after-load "savehist"
'(add-to-list 'savehist-additional-variables 'my-ssh-history))
(defun my-ssh (args)
"Connect to a remote host by SSH."
(interactive
(list (read-from-minibuffer "ssh " nil nil nil 'my-ssh-history)))
(let* ((switches (split-string-and-unquote args))
(name (concat "ssh " args))
(termbuf (apply 'make-term name "ssh" nil switches)))
(set-buffer termbuf)
(term-mode)
(term-char-mode)
(switch-to-buffer termbuf)))
(savehist-mode 1)
