Revert "emacs: remove exec-path-from-shell"

This reverts commit fc814f4.

configs/emacs/default/modules/init-misc-tools.el

@@ -198,6 +198,10 @@
         vterm-buffer-name-string "vterm %s"))
 
 
+(use-package exec-path-from-shell
+  :commands exec-path-from-shell-copy-env)
+
+
 (use-package gptel
   :config
   (require 'gptel-curl)

configs/emacs/default/modules/init-prog-tools.el

@@ -61,6 +61,11 @@ _r_: Restart              _x_: Eval Expression      _s_: Select Stack
   (evil-set-initial-state 'magit-stash-mode 'normal)
   (evil-set-initial-state 'magit-process-mode 'normal)
   :config
+  ;; when using ssh for git authentication and this environmental variable is
+  ;; not set, magit complains about being unable to read or have access rights
+  ;; while git works fine in the terminal.
+  (exec-path-from-shell-copy-env "SSH_AUTH_SOCK")
+
   ;; I bind my own magit dispatch commands here.
   (transient-define-prefix my/magit-dispatch ()
     "Invoke a Magit command from a list of available commands."

profiles/home/emacs.nix

@@ -169,6 +169,7 @@
         evil-surround
         evil-traces
         evil-visualstar
+        exec-path-from-shell
         expand-region
         format-all
         gcmh