Add some more packages and fix some existing configuration

.gitignore

@@ -1,5 +1,7 @@
 auto-save-list/
+backup/
 elpa/
 transient/
 
-*~
+history
+recentf

init.el

@@ -23,19 +23,32 @@
 (defconst user-init-dir "~/.emacs.d/")
 
 (defun load-user-file (file)
+  "Load FILE in the current user's configuration directory.
+   File names which are prefixed with an underscore will be ignored."
   (interactive "f")
-  "Load a file in the current user's configuration directory"
-  (load-file (expand-file-name file user-init-dir)))
+  (unless (string-prefix-p "_" (file-name-nondirectory file))
+    (load-file (expand-file-name file user-init-dir))))
 
 (defun load-user-dir (dir)
+  "Recursively load all files in directory DIR.
+   DIR should be relative to the user's configuration directory."
   (interactive "f")
-  "Recursively load all files in a given directory, relative to the user's
-   configuration directory"
   (setq config-dir (file-name-concat user-init-dir dir))
   (dolist (file (directory-files-recursively config-dir ""))
     (load-user-file file)))
 
 
+;; Configure how and where backup files are created:
+
+(setq backup-directory-alist '(("." . "~/.emacs.d/backup"))
+      backup-by-copying t    ; Don't delink hardlinks
+      version-control t      ; Use version numbers on backups
+      delete-old-versions t  ; Automatically delete excess backups
+      kept-new-versions 20   ; How many of the newest versions to keep
+      kept-old-versions 5    ; How many of the oldest versions to keep
+      )
+
+
 ;; Load all user-defined configuration files:
 
 (load-user-file "editor.el")
@@ -54,8 +67,11 @@
  ;; If you edit it by hand, you could mess it up, so be careful.
  ;; Your init file should contain only one such instance.
  ;; If there is more than one, they won't work right.
+ '(git-gutter:added-sign " +")
+ '(git-gutter:deleted-sign " -")
+ '(git-gutter:modified-sign " *")
  '(package-selected-packages
-   '(yaml-mode toml-mode markdown-mode yasnippet which-key super-save solaire-mode smartparens rainbow-delimiters magit hl-todo git-gutter flycheck diminish crux)))
+   '(yaml-mode toml-mode markdown-mode yasnippet which-key vertico super-save solaire-mode smartparens rainbow-delimiters nerd-icons nerd-icons-dired magit lsp-mode hl-todo hl-line git-gutter flycheck diminish crux)))
 (custom-set-faces
  ;; custom-set-faces was added by Custom.
  ;; If you edit it by hand, you could mess it up, so be careful.

key-bindings.el

@@ -10,5 +10,6 @@
 ;; Enable code folding in programming modes, and set some more reasonable
 ;; shortcuts.
 (add-hook 'prog-mode-hook #'hs-minor-mode)
+(add-hook 'hs-minor-mode-hook (lambda () (diminish 'hs-minor-mode)))
 (global-set-key (kbd "C-c C-h") (kbd "C-c @ C-h")) ; Hide a block
 (global-set-key (kbd "C-c C-s") (kbd "C-c @ C-s")) ; Show a block

pkg/flycheck.el

@@ -2,7 +2,6 @@
 ;; https://github.com/flycheck/flycheck
 (use-package flycheck
   :ensure   t
-  :defer    t
   :diminish flycheck-mode
   :config
   (setq flycheck-standard-error-navigation nil)

pkg/lsp.el

@@ -0,0 +1,6 @@
+;; Language server protocol support.
+;; https://github.com/emacs-lsp/lsp-mode
+(use-package lsp-mode
+  :ensure   t
+  :commands (lsp lsp-deferred)
+  :hook     ((lsp-mode . lsp-enable-which-key-integration)))

pkg/nerd-icons-dired.el

@@ -0,0 +1,8 @@
+;; Use nerd icons in dired mode.
+;; https://github.com/rainstormstudio/nerd-icons-dired
+(use-package nerd-icons-dired
+  :ensure t
+  :defer  t
+  :diminish nerd-icons-dired-mode
+  :hook
+  (dired-mode . nerd-icons-dired-mode))

pkg/nerd-icons.el

@@ -0,0 +1,6 @@
+;; Nerd Font icons.
+;; https://github.com/rainstormstudio/nerd-icons.el
+(use-package nerd-icons
+  :ensure t
+  :custom
+  (nerd-icons-font-family "FiraCode Nerd Font"))

pkg/savehist.el

@@ -0,0 +1,4 @@
+;; Persist history over Emacs restarts.
+(use-package savehist
+  :init
+  (savehist-mode))

pkg/super-save.el

@@ -1,8 +1,8 @@
 ;; Save buffers when focus is lost.
 ;; https://github.com/bbatsov/super-save
 (use-package super-save
-  :ensure t
-  :defer  t
+  :ensure   t
   :diminish super-save-mode
   :config
+  (setq super-save-auto-save-when-idle t)
   (super-save-mode +1))

pkg/vertico.el

@@ -0,0 +1,9 @@
+;; Vertical interactive completion.
+;; https://github.com/minad/vertico
+(use-package vertico
+  :ensure t
+  :custom
+  (vertico-count 3)
+  (vertico-cycle t)
+  :init
+  (vertico-mode))