From: Christian Heller <c.heller@plomlompom.de>
Date: Mon, 6 May 2019 19:15:07 +0000 (+0200)
Subject: Add Emacs setup.
X-Git-Url: https://plomlompom.com/repos/%7B%7Bprefix%7D%7D/%7B%7Bdb.prefix%7D%7D/tasks?a=commitdiff_plain;h=c347a81a997ab248ac3f1a955816ae131d68daa1;p=config

Add Emacs setup.
---

diff --git a/buster/apt-mark/eeepc b/buster/apt-mark/eeepc
index 6d7b254..0e2c83b 100644
--- a/buster/apt-mark/eeepc
+++ b/buster/apt-mark/eeepc
@@ -32,6 +32,7 @@ alsa-utils
 ttf-unifont
 # also useful
 vim
+emacs25
 sudo
 less
 man-db
diff --git a/buster/home_files/user_eeepc/.emacs.d/init.el b/buster/home_files/user_eeepc/.emacs.d/init.el
new file mode 100644
index 0000000..f289d92
--- /dev/null
+++ b/buster/home_files/user_eeepc/.emacs.d/init.el
@@ -0,0 +1,272 @@
+;; general layout
+;; ==============
+
+;; need no stinkin emacs help screen as start up, and no menu bar
+(setq inhibit-startup-screen t)
+(menu-bar-mode -1)
+
+;; highlight cursor line, parentheses
+(global-hl-line-mode 1)
+(show-paren-mode 1)
+
+;; show line numbers, use separator space
+(global-linum-mode)
+(setq linum-format "%d ")
+
+;; count cursor column, row in mode line
+(setq column-number-mode t)
+
+;; settings to make GUI tolerable
+(if window-system
+  (progn
+    (add-to-list 'default-frame-alist '(foreground-color . "white"))
+    (add-to-list 'default-frame-alist '(background-color . "black"))
+    (set-face-attribute 'default nil :height 80)
+    (scroll-bar-mode -1)
+    (setq visible-bell t)
+    (setq linum-format "%d")))
+
+;; use as default browser what XDG offers
+(setq-default browse-url-browser-function 'browse-url-xdg-open)
+
+;; general keybindings
+;; ===================
+
+;; create and use a minimal global map using just the self-insert command
+;; bindings and a selection of some to me very common keystrokes
+(setq minimal-map (make-sparse-keymap))
+(substitute-key-definition 'self-insert-command 'self-insert-command
+                           minimal-map global-map)
+(use-global-map minimal-map)
+(global-set-key (kbd "DEL") 'backward-delete-char-untabify)
+(global-set-key (kbd "RET") 'newline)
+(global-set-key (kbd "TAB") 'indent-for-tab-command)
+(global-set-key (kbd "<up>") 'previous-line)
+(global-set-key (kbd "<down>") 'next-line)
+(global-set-key (kbd "<left>") 'left-char)
+(global-set-key (kbd "<right>") 'right-char)
+(global-set-key (kbd "<prior>") 'scroll-down-command)
+(global-set-key (kbd "<next>") 'scroll-up-command)
+(global-set-key (kbd "M-x") 'execute-extended-command)
+(global-set-key (kbd "C-g") 'keyboard-quit)
+;(global-set-key (kbd "<f3>") 'kmacro-start-macro-or-insert-counter)
+;(global-set-key (kbd "<f4>") 'kmacro-end-or-call-macro)
+;; note how to switch back to the original map: (use-global-map global-map)
+(setq shr-map (make-sparse-keymap))  ; got annoying in elfeed-show on URLs
+
+
+;; minibuffer
+;; ==========
+
+;; incremental minibuffer completion
+(icomplete-mode 1)
+
+
+
+;; text editing
+;; ============
+
+;; tabs are evil
+(setq-default indent-tabs-mode nil)
+(setq-default tab-width 4)
+(setq indent-line-function 'insert-tab)
+
+;; show trailing whitespace
+(setq-default show-trailing-whitespace 1)
+
+;; on save, ask whether to ensure text file's last line ends in a
+;; newline character
+(setq require-final-newline 1)
+
+;; use dedicated directory for version-controlled, endless backups;
+;; never delete old versions
+(setq make-backup-files t
+      backup-directory-alist `(("." . "~/.emacs_backups"))
+      backup-by-copying t
+      version-control t
+      delete-old-versions 1)  ;; neither t nor nil: never delete
+
+
+
+;; package management
+;; ==================
+
+;; where we get packages from
+(setq package-archives '(("gnu" . "https://elpa.gnu.org/packages/")
+                         ("melpa-unstable" . "https://melpa.org/packages/")
+                         ("melpa-stable" . "https://stable.melpa.org/packages/")))
+
+;; by default, packages are only loaded after the init file; by loading them
+;; earlier, the call to evil-mode below is made possible
+(package-initialize)
+
+
+
+;;; window management
+;;; =================
+;
+;;; track window configurations to allow window config undo
+;(winner-mode 1)
+
+
+
+;; org mode
+;; ========
+
+;; unsure why, but to re-set the key map, we not only have to explicitely do it
+;; only after org-mode loading, but also have to explicitely overwrite the
+;; C-c keybinding; TODO: investigate
+(with-eval-after-load 'org
+    (setq org-mode-map (make-sparse-keymap))
+    (define-key org-mode-map (kbd "C-c") nil)
+    (define-key org-mode-map (kbd "TAB") 'org-cycle)
+    (define-key org-mode-map (kbd "<backtab>") 'org-shifttab))
+
+;; basic org-capture config
+(setq org-capture-templates
+      '(("x" "test" plain (file "~/org/notes.org") "%T: %?")))
+(add-hook 'org-capture-mode-hook 'evil-insert-state)
+
+;; agenda view on startup
+(load-library "find-lisp")
+(setq org-agenda-files (find-lisp-find-files "~/org" "\.org$"))
+(setq org-agenda-span 90)
+(setq org-agenda-use-time-grid nil)
+(add-hook 'emacs-startup-hook (lambda ()
+                                 (org-agenda-list)
+                                 (switch-to-buffer "*Org Agenda*")
+                                 (other-window 1)))
+
+;;; for calendar, use ISO date style
+;(setq calendar-date-style 'iso)
+;(setq diary-number-of-entries 7)
+;(diary)
+;(setq org-agenda-time-grid '((today require-timed remove-match)
+;                             #("----------------" 0 16 (org-heading t))
+;                             (0 200 400 600 800 1000 1200
+;                                1400 1600 1800 2000 2200)))
+
+;; empty org-agenda-mode keybindings
+(add-hook 'org-agenda-mode-hook
+          (lambda ()
+            (setq org-agenda-mode-map (make-sparse-keymap))))
+(add-hook 'org-agenda-mode-hook
+          (lambda ()
+            (use-local-map (make-sparse-keymap))))
+
+;; org-publish-all
+(setq org-publish-project-alist
+      '(
+        ("website"
+         :base-directory "~/org/web/"
+         :base-extension "org"
+         :publishing-directory "~/html/"
+         :recursive t
+         :publishing-function org-html-publish-to-html
+         :headline-levels 4             ; Just the default for this project.
+         :auto-preamble t
+          )))
+
+;; use [ki:] syntax to hide stuff from exports
+(defun classify-information (text backend info)
+  "Replaces '[ki:WHATEVER]' with '[klassifizierte Information]'."
+  (replace-regexp-in-string "\\[ki:[^\]]*\]" "[klassifizierte Information]" text))
+(add-hook 'org-export-filter-plain-text-functions 'classify-information)
+
+;; add HTML validator link to exports
+(setq org-html-validation-link "<a href=\"https://validator.w3.org/check?uri=referer\">Validate</a>")
+
+
+
+;;; plomvi mode
+;;; ===========
+(load "~/public_repos/plomvi.el/plomvi.el")
+(global-set-key (kbd "C-c") 'plomvi-activate)
+(plomvi-global-mode 1)
+
+
+
+;;; Info mode
+;;; =========
+
+(setq Info-mode-map (make-sparse-keymap))
+(define-key Info-mode-map (kbd "RET") 'Info-follow-nearest-node)
+(define-key Info-mode-map (kbd "u") 'Info-up)
+(define-key Info-mode-map (kbd "TAB") 'Info-next-reference)
+(define-key Info-mode-map (kbd "<backtab>") 'Info-prev-reference)
+(define-key Info-mode-map (kbd "H") 'Info-history-back)
+(define-key Info-mode-map (kbd "L") 'Info-history-forward)
+(define-key Info-mode-map (kbd "I") 'Info-goto-node)
+(define-key Info-mode-map (kbd "i") 'Info-index)
+
+;; help mode
+;; =========
+
+(setq help-mode-map (make-sparse-keymap))
+(define-key help-mode-map (kbd "TAB") 'forward-button)
+(define-key help-mode-map (kbd "RET") 'help-follow)
+(define-key help-mode-map (kbd "<backtab>") 'backward-button)
+
+;; elfeed
+;; ======
+
+(require 'elfeed)  ; needed so we can set the font faces
+(set-face-background 'elfeed-search-title-face "magenta")
+(set-face-background 'elfeed-search-unread-count-face "magenta")
+(setq elfeed-feeds
+      '("https://capsurvival.blogspot.com/feeds/posts/default"
+        "https://jungle.world/rss.xml"
+        "http://news.dieweltistgarnichtso.net/bin/index.xml"
+        "https://taz.de/!s=&ExportStatus=Intern&SuchRahmen=Online;rss/"
+        "http://www.tagesschau.de/xml/atom"))
+(setq elfeed-search-mode-map (make-sparse-keymap))
+(define-key elfeed-search-mode-map (kbd "RET") 'elfeed-search-show-entry)
+(defun elfeed-search-mark-as-read() (interactive)
+  (elfeed-search-untag-all 'unread))
+(define-key elfeed-search-mode-map (kbd "r") 'elfeed-search-mark-as-read)
+(define-key elfeed-search-mode-map (kbd "R") 'elfeed-search-tag-all-unread)
+(define-key elfeed-search-mode-map (kbd "f") 'elfeed-search-live-filter)
+(define-key elfeed-search-mode-map (kbd "u") 'elfeed-update)
+(setq elfeed-show-mode-map (make-sparse-keymap))
+(define-key elfeed-show-mode-map (kbd "u") 'elfeed)
+(define-key elfeed-show-mode-map (kbd "TAB") 'shr-next-link)
+(define-key elfeed-show-mode-map (kbd "<backtab>") 'shr-previous-link)
+(define-key elfeed-show-mode-map (kbd "a") 'elfeed-show-prev)
+(define-key elfeed-show-mode-map (kbd "d") 'elfeed-show-next)
+(define-key elfeed-show-mode-map (kbd "y") 'shr-copy-url)
+(define-key elfeed-show-mode-map (kbd "RET") 'shr-browse-url)
+
+;; eww
+;; ===
+
+(setq eww-mode-map (make-sparse-keymap))
+(define-key eww-mode-map (kbd "TAB") 'shr-next-link)
+(define-key eww-mode-map (kbd "<backtab>") 'shr-previous-link)
+(define-key eww-mode-map (kbd "H") 'eww-back-url)
+(define-key eww-mode-map (kbd "L") 'eww-forward-url)
+
+;; ledger
+;; ======
+(setq ledger-mode-map (make-sparse-keymap))
+(define-key ledger-mode-map (kbd "TAB") 'ledger-magic-tab)
+
+
+;; unset other maps so they don't disturb C-c keybinding
+;; =====================================================
+;; TODO: saner solution would be a default-activated minor mode that binds
+;; C-c
+(setq conf-mode-map (make-sparse-keymap))
+(setq sh-mode-map (make-sparse-keymap))
+(setq python-mode-map (make-sparse-keymap))
+
+
+;;; evil mode
+;;; =========
+;
+;;; start in normal mode everywhere
+;(setq evil-emacs-state-modes nil)
+;(setq evil-insert-state-modes nil)
+;(setq evil-motion-state-modes nil)
+;
+;;; enable evil at end so it can overlay its keybindings over any other packages
+;(evil-mode t)