Set fill-column for doom configuration to 80

.dir-locals.el

@@ -0,0 +1 @@
+((nil . ((fill-column . 80))))

config.el

@@ -35,12 +35,11 @@
 (setq doom-theme 'doom-one)
 (add-hook 'doom-load-theme-hook
           (lambda ()
-            (progn
             (set-face-attribute 'font-lock-constant-face nil :weight 'bold)
             (set-face-attribute 'font-lock-function-name-face nil :weight 'bold)
             (set-face-attribute 'font-lock-keyword-face nil :weight 'bold)
             (set-face-attribute 'font-lock-type-face nil :weight 'bold)
-              (set-face-attribute 'show-paren-match nil :background nil))))
+            (set-face-attribute 'show-paren-match nil :background nil)))
 (after! whitespace (set-face-attribute 'whitespace-line nil :background nil))
 
 ;; This determines the style of line numbers in effect. If set to `nil', line
@@ -95,7 +94,8 @@
   (delete org-agenda-section +doom-dashboard-menu-sections))
 
 ;; Remove the silly doom newline advice.
-(advice-remove 'newline-and-indent #'+default--newline-indent-and-continue-comments-a)
+(advice-remove 'newline-and-indent
+               #'+default--newline-indent-and-continue-comments-a)
 
 ;; I actually like it when Emacs recenters the screen while scrolling. This may
 ;; be an issue in large files. When that becomes an issue add an exception here.
@@ -113,23 +113,25 @@
 ;; -----------------------------------------------------------------------------
 
 ;; Always open magit in other window.
-(after! magit (setq magit-display-buffer-function #'magit-display-buffer-traditional))
+(after! magit
+  (setq magit-display-buffer-function #'magit-display-buffer-traditional))
 
 ;; Don't use the LSP formatter.
 (after! lsp (setq +format-with-lsp nil))
 
 ;; Python virtualenv configuration.
-(after! lsp-pyright (setq lsp-pyright-venv-path (concat (getenv "HOME") "/.virtualenvs")))
+(after! lsp-pyright
+  (setq lsp-pyright-venv-path (concat (getenv "HOME") "/.virtualenvs")))
 
 ;; Rainbow delimiters in all prog-mode buffers.
 (add-hook! prog-mode #'rainbow-delimiters-mode-enable)
 
 ;; Make TRAMP easier to use for sudo on remote hosts.
 (after! tramp
-  ;; This line proxies all sudo connections via an ssh connection to the provided hostname.
+  ;; Proxy all sudo connections via an ssh connection to the provided hostname.
   (add-to-list 'tramp-default-proxies-alist '(nil "\\`root\\'" "/ssh:%h:"))
-  ;; This rule is an exception to the above so that local sudo does not proxy via ssh. This has to
+  ;; This rule is an exception to the above so that local sudo does not proxy
-  ;; be added last so that it is the first element of the list.
+  ;; via ssh. This has to be added last so that it is the first element.
   (add-to-list 'tramp-default-proxies-alist '("localhost" "\\`root\\'" nil)))
 
 ;; Extra VTerm configuration.
@@ -200,9 +202,12 @@
  ;; Always indent. Why would I ever want to insert a tab?
  tab-always-indent t
  ;; Default indentation size - applies even when indent-tabs-mode is nil.
- tab-width 8
+ tab-width 8)
- ;; Highlight lines that are too long in whitespace mode.
+
- whitespace-line-column fill-column)
+;; Highlight lines that are too long in whitespace mode. We set this with a hook
+;; after local variables as fill-column is often set through dir-locals.
+(add-hook 'hack-local-variables-hook
+          (lambda () (setq-local whitespace-line-column fill-column)))
 
 ;; CamelCase as separate words.
 (global-subword-mode +1)
@@ -210,9 +215,9 @@
 ;; Doom emacs recommends `visual-line-mode' as it claims wrapping is expensive.
 (global-visual-line-mode +1)
 
-;; But "C-e" behaves differently in `visual-line-mode' than when they are
+;; But "C-e" behaves differently in `visual-line-mode' than when wrapping. It
-;; wrapped. It goes to the end of the visual line, not the logical line. This
+;; goes to the end of the visual line, not the logical line. This can be fixed
-;; can be fixed by defining the following aliases.
+;; by defining the following aliases.
 (defalias #'end-of-visual-line #'end-of-line)
 (defalias #'beginning-of-visual-line #'beginning-of-line)
 
@@ -245,7 +250,8 @@
  "M-o" #'other-window
  "C-x o" #'other-popup
  ;; Kill current buffer without prompting.
- :desc "kill-buffer" "C-x k" (lambda ()
+ :desc "kill-buffer"
+ "C-x k" (lambda ()
            (interactive)
            (let (kill-buffer-query-functions) (kill-buffer)))
  ;; Scroll up/down, but keep point in place.

init.el

@@ -107,7 +107,7 @@
        ;;upload            ; map local to remote projects via ssh/ftp
 
        :os
-       (:if IS-MAC macos)  ; improve compatibility with macOS
+       (:if IS-MAC macos); improve compatibility with macOS
        ;;tty               ; improve the terminal Emacs experience
 
        :lang
@@ -155,7 +155,7 @@
        ;;php               ; perl's insecure younger brother
        ;;plantuml          ; diagrams for confusing people more
        ;;purescript        ; javascript, but functional
-       (python +lsp +pyright)            ; beautiful is better than ugly
+       (python +lsp +pyright); beautiful is better than ugly
        ;;qt                ; the 'cutest' gui framework ever
        ;;racket            ; a DSL for DSLs
        ;;raku              ; the artist formerly known as perl6

modules/term/vterm/README.org

@@ -18,9 +18,11 @@ This module provides a terminal emulator powered by libvterm.
 The following commands are available to open it:
 
 + ~+vterm/other-window~ (=C-c o t=): Opens vterm in other window
-+ ~+vterm/project/other-window~ (=C-c o p=): Opens vterm in the current project in other window
++ ~+vterm/project/other-window~ (=C-c o p=): Opens vterm in the current project
+  in other window
 + ~+vterm/here~ (=C-c o T=): Opens vterm in the current window
-+ ~+vterm/project/here~ (=C-c o P=): Opens vterm in the current project in the current window
++ ~+vterm/project/here~ (=C-c o P=): Opens vterm in the current project in the
+  current window
 
 These commands will first try to find an existing suitable vterm buffer and open
 it. If one does not exist, they will create a new one. If the current buffer is

modules/term/vterm/autoload.el

@@ -35,7 +35,8 @@ If current buffer is not in vterm-mode:
 
 Returns the vterm buffer"
   (unless (fboundp 'module-load)
-    (user-error "Your build of Emacs lacks dynamic modules support and cannot load vterm"))
+    (user-error
+     "Your build of Emacs lacks dynamic modules support and cannot load vterm"))
   (let ((vterm-buffer-name (+vterm--buffer-name)))
       (if (string= major-mode "vterm-mode")
           (funcall spawn-fn vterm-buffer-name)
@@ -45,17 +46,20 @@ Returns the vterm buffer"
             (funcall spawn-fn vterm-buffer-name))))))
 
 (defun +vterm--spawn-or-switch-with-project (spawn-fn switch-fn)
-  "Open using `spawn-fn' or switch to active vterm using `switch-fn' in a project.
+  "Open with `spawn-fn' or switch to active vterm with `switch-fn' in a project.
 
 Returns the vterm buffer"
   (let ((project-root (doom-project-root)))
     (unless project-root
-      (user-error "vterm/project/* cannot find a project, because you are not in a project"))
+      (user-error
+       "vterm/project cannot find a project, because you are not in a project"))
     (let ((default-directory project-root))
         (+vterm--spawn-or-switch spawn-fn switch-fn))))
 
 (defun +vterm--other-window (other-window-fn current-window-fn)
-  "Open or switch using `other-window-fn' unless current buffer is doom-dashboard.
+  "Open or switch with `other-window-fn'.
+
+Unless current buffer is doom-dashboard.
 
 Returns the vterm buffer."
   (if (equal major-mode #'+doom-dashboard-mode)
@@ -73,7 +77,8 @@ buffer is the doom-dashboard, vterm opens in the current window.
 
 Returns the vterm buffer."
   (interactive)
-  (+vterm--other-window (lambda ()
+  (+vterm--other-window
+   (lambda ()
      (+vterm--spawn-or-switch #'vterm-other-window
                               #'switch-to-buffer-other-window))
    (lambda ()
@@ -91,7 +96,8 @@ buffer is the doom-dashboard, vterm opens in the current window.
 
 Returns the vterm buffer."
   (interactive)
-  (+vterm--other-window (lambda ()
+  (+vterm--other-window
+   (lambda ()
      (+vterm--spawn-or-switch-with-project #'vterm-other-window
                                            #'switch-to-buffer-other-window))
    (lambda ()