feat(aspen/emacs): Begin a complete emacs config revamp

I'm still on doom, but without all the cruft I've accumulated over the
last ~6 years it's actually good and fast and nice. Also, the config is
literate now!

The old emacs is still in .emacs.d, since occasionally I want to
reference it, but eventually I'll just get rid of it

Change-Id: Icda840d798594f7e6b188dba044494597d5f6043
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10999
Reviewed-by: aspen <root@gws.fyi>
Tested-by: BuildkiteCI

users/aspen/emacs/org-config.el

@@ -0,0 +1,141 @@
+;;; org-config.el -*- lexical-binding: t; -*-
+
+(defun +aspen/org-setup ()
+  (setq-local truncate-lines -1)
+  (display-line-numbers-mode -1)
+  (line-number-mode -1)
+  (when-let*
+      ((path (buffer-file-name))
+       (fn (file-name-nondirectory path))
+       (equal (string-equal fn "config.org")))
+    (paxedit-mode 1)
+    (display-line-numbers-mode 1)
+    (flyspell-mode -1)
+    (org-config-mode 1)))
+
+(add-hook 'org-mode-hook #'+aspen/org-setup 50)
+
+(defun notes-file (f)
+  (concat org-directory (if (string-prefix-p "/" f) "" "/") f))
+
+(defun aspen/org-project-tag->key (tag)
+  (s-replace-regexp "^project__" "" tag))
+
+(defun aspen/org-project-tag->name (tag)
+  (s-titleized-words
+   (s-join " " (s-split "_" (aspen/org-project-tag->key tag)))))
+
+(defun aspen/org-project-tag->keys (tag)
+  (s-join "" (cons "p"
+                   (-map (lambda (s) (substring-no-properties s 0 1))
+                         (s-split "_" (aspen/org-project-tag->key tag))))))
+
+(defun aspen/org-projects->agenda-commands (project-tags)
+  (cl-loop for tag in project-tags
+           collect `(,(aspen/org-project-tag->keys tag)
+                     ,(aspen/org-project-tag->name tag)
+                     tags-todo
+                     ,tag)))
+
+(defun aspen/org-projects ()
+  (cl-loop for (tag) in
+           (org-global-tags-completion-table
+            (directory-files-recursively "~/notes" "\\.org$"))
+           when (s-starts-with-p "project__" tag)
+           collect tag))
+
+(comment
+ (aspen/org-projects->agenda-commands (aspen/org-projects))
+ )
+
+(setq
+ org-directory (expand-file-name "~/notes")
+ +org-dir (expand-file-name "~/notes")
+ org-default-notes-file (concat org-directory "/inbox.org")
+ +org-default-todo-file (concat org-directory "/inbox.org")
+ org-agenda-files (directory-files-recursively
+                   "~/notes" "\\.org$")
+ org-refile-targets '((org-agenda-files :maxlevel . 3))
+ org-outline-path-complete-in-steps nil
+ org-refile-use-outline-path t
+ org-file-apps `((auto-mode . emacs)
+                 (,(rx (or (and "." (optional "x") (optional "htm") (optional "l") buffer-end)
+                           (and buffer-start "http" (optional "s") "://")))
+                  . "firefox %s")
+                 (,(rx ".pdf" buffer-end) . "apvlv %s")
+                 (,(rx "." (or "png"
+                               "jpg"
+                               "jpeg"
+                               "gif"
+                               "tif"
+                               "tiff")
+                       buffer-end)
+                  . "feh %s"))
+ org-log-done 'time
+ org-archive-location "~/notes/trash::* From %s"
+ org-cycle-separator-lines 2
+ org-hidden-keywords '(title)
+ org-tags-column -130
+ org-ellipsis "…"
+ org-imenu-depth 9
+ org-capture-templates
+ `(("t" "Todo" entry
+    (file +org-default-todo-file)
+    "* TODO %?\n%i"
+    :kill-buffer t)
+
+   ("m" "Email" entry
+    (file +org-default-todo-file)
+    "* TODO [[%L][%:subject]] :email:\n%i")
+
+   ("n" "Notes" entry
+    (file +org-default-todo-file)
+    "* %U %?\n%i"
+    :prepend t
+    :kill-buffer t)
+
+   ("c" "Task note" entry
+    (clock)
+    "* %U %?\n%i[%l[Context]]\n"
+    :kill-buffer t
+    :unnarrowed t)
+
+   ("p" "Projects")
+   ("px" "Xanthous" entry
+    (file+headline ,(notes-file "xanthous.org") "Backlog")
+    "* TODO %?\nContext %a\nIn task: %K")
+   ("pt" "Tvix" entry
+    (file+headline ,(notes-file "tvix.org") "Tvix TODO")
+    "* TODO %?\nContext %a\nIn task: %K")
+   ("pw" "Windtunnel" entry
+    (file+headline ,(notes-file "windtunnel.org") "Inbox")
+    "* TODO %i%?\nContext: %a\nIn task: %K")
+   )
+
+ org-capture-templates-contexts
+ `(("px" ((in-file . "/home/aspen/code/depot/users/aspen/xanthous/.*")))
+   ("e" ((in-mode . "notmuch-show-mode"))))
+
+ org-deadline-warning-days 1
+ org-agenda-skip-scheduled-if-deadline-is-shown 'todo
+ org-todo-keywords '((sequence "TODO(t)" "ACTIVE(a)" "|" "DONE(d)" "RUNNING(r)")
+                     (sequence "NEXT(n)" "WAITING(w)" "LATER(l)" "|" "CANCELLED(c)"))
+ org-agenda-custom-commands
+ `(("i" "Inbox" tags "inbox")
+   ("r" "Running jobs" todo "RUNNING")
+   ("w" "@Work" tags-todo "@work")
+   ("n" . "Next...")
+   ("nw" "Next @Work" tags-todo "@work&next")
+   ("nt" "Next tooling" tags-todo "tooling")
+
+   ("p" . "Project...")
+   ;; ,@(aspen/org-projects->agenda-commands (aspen/org-projects))
+   )
+
+ org-agenda-dim-blocked-tasks nil
+ org-enforce-todo-dependencies nil
+
+ org-babel-clojure-backend 'cider)
+
+(setq whitespace-global-modes '(not org-mode magit-mode vterm-mode))
+(setf (alist-get 'file org-link-frame-setup) 'find-file-other-window)