308 lines
11 KiB
EmacsLisp
308 lines
11 KiB
EmacsLisp
(require 'chart)
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(require 'dash)
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(require 'map)
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(defun load-file-if-exists (filename)
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(if (file-exists-p filename)
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(load filename)))
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(defun goto-line-with-feedback ()
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"Show line numbers temporarily, while prompting for the line number input"
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(interactive)
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(unwind-protect
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(progn
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(setq-local display-line-numbers t)
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(let ((target (read-number "Goto line: ")))
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(avy-push-mark)
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(goto-line target)))
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(setq-local display-line-numbers nil)))
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;; These come from the emacs starter kit
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(defun esk-add-watchwords ()
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(font-lock-add-keywords
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nil '(("\\<\\(FIX\\(ME\\)?\\|TODO\\|DEBUG\\|HACK\\|REFACTOR\\|NOCOMMIT\\)"
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1 font-lock-warning-face t))))
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(defun esk-sudo-edit (&optional arg)
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(interactive "p")
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(if (or arg (not buffer-file-name))
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(find-file (concat "/sudo:root@localhost:" (read-file-name "File: ")))
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(find-alternate-file (concat "/sudo:root@localhost:" buffer-file-name))))
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;; Open Fefes blog
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(defun fefes-blog ()
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(interactive)
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(eww "https://blog.fefe.de/"))
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;; Open the NixOS man page
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(defun nixos-man ()
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(interactive)
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(man "configuration.nix"))
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;; Open my monorepo in magit
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(defun depot-status ()
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(interactive)
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(magit-status "~/depot"))
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;; Get the nix store path for a given derivation.
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;; If the derivation has not been built before, this will trigger a build.
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(defun nix-store-path (derivation)
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(let ((expr (concat "with import <nixos> {}; " derivation)))
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(s-chomp (shell-command-to-string (concat "nix-build -E '" expr "'")))))
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(defun insert-nix-store-path ()
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(interactive)
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(let ((derivation (read-string "Derivation name (in <nixos>): ")))
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(insert (nix-store-path derivation))))
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(defun toggle-force-newline ()
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"Buffer-local toggle for enforcing final newline on save."
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(interactive)
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(setq-local require-final-newline (not require-final-newline))
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(message "require-final-newline in buffer %s is now %s"
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(buffer-name)
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require-final-newline))
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;; Helm includes a command to run external applications, which does
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;; not seem to exist in ivy. This implementation uses some of the
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;; logic from Helm to provide similar functionality using ivy.
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(defun list-external-commands ()
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"Creates a list of all external commands available on $PATH
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while filtering NixOS wrappers."
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(cl-loop
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for dir in (split-string (getenv "PATH") path-separator)
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when (and (file-exists-p dir) (file-accessible-directory-p dir))
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for lsdir = (cl-loop for i in (directory-files dir t)
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for bn = (file-name-nondirectory i)
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when (and (not (s-contains? "-wrapped" i))
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(not (member bn completions))
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(not (file-directory-p i))
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(file-executable-p i))
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collect bn)
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append lsdir into completions
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finally return (sort completions 'string-lessp)))
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(defvar external-command-flag-overrides
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'(("google-chrome" . "--force-device-scale-factor=1.4"))
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"This setting lets me add additional flags to specific commands
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that are run interactively via `ivy-run-external-command'.")
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(defun run-external-command (cmd)
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"Execute the specified command and notify the user when it
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finishes."
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(let* ((extra-flags (cdr (assoc cmd external-command-flag-overrides)))
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(cmd (if extra-flags (s-join " " (list cmd extra-flags)) cmd)))
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(message "Starting %s..." cmd)
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(set-process-sentinel
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(start-process-shell-command cmd nil cmd)
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(lambda (process event)
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(when (string= event "finished\n")
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(message "%s process finished." process))))))
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(defun ivy-run-external-command ()
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"Prompts the user with a list of all installed applications and
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lets them select one to launch."
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(interactive)
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(let ((external-commands-list (list-external-commands)))
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(ivy-read "Command:" external-commands-list
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:require-match t
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:history 'external-commands-history
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:action #'run-external-command)))
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(defun ivy-password-store (&optional password-store-dir)
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"Custom version of password-store integration with ivy that
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actually uses the GPG agent correctly."
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(interactive)
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(ivy-read "Copy password of entry: "
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(password-store-list (or password-store-dir (password-store-dir)))
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:require-match t
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:keymap ivy-pass-map
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:action (lambda (entry)
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(let ((password (auth-source-pass-get 'secret entry)))
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(password-store-clear)
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(kill-new password)
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(setq password-store-kill-ring-pointer kill-ring-yank-pointer)
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(message "Copied %s to the kill ring. Will clear in %s seconds."
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entry (password-store-timeout))
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(setq password-store-timeout-timer
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(run-at-time (password-store-timeout)
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nil 'password-store-clear))))))
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(defun ivy-browse-repositories ()
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"Select a git repository and open its associated magit buffer."
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(interactive)
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(ivy-read "Repository: "
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(magit-list-repos)
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:require-match t
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:sort t
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:action #'magit-status))
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(defun bottom-right-window-p ()
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"Determines whether the last (i.e. bottom-right) window of the
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active frame is showing the buffer in which this function is
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executed."
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(let* ((frame (selected-frame))
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(right-windows (window-at-side-list frame 'right))
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(bottom-windows (window-at-side-list frame 'bottom))
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(last-window (car (seq-intersection right-windows bottom-windows))))
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(eq (current-buffer) (window-buffer last-window))))
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(defhydra mc/mark-more-hydra (:color pink)
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("<up>" mmlte--up "Mark previous like this")
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("<down>" mc/mmlte--down "Mark next like this")
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("<left>" mc/mmlte--left (if (eq mc/mark-more-like-this-extended-direction 'up)
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"Skip past the cursor furthest up"
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"Remove the cursor furthest down"))
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("<right>" mc/mmlte--right (if (eq mc/mark-more-like-this-extended-direction 'up)
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"Remove the cursor furthest up"
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"Skip past the cursor furthest down"))
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("f" nil "Finish selecting"))
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;; Mute the message that mc/mmlte wants to print on its own
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(advice-add 'mc/mmlte--message :around (lambda (&rest args) (ignore)))
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(defun mc/mark-dwim (arg)
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"Select multiple things, but do what I mean."
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(interactive "p")
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(if (not (region-active-p)) (mc/mark-next-lines arg)
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(if (< 1 (count-lines (region-beginning)
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(region-end)))
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(mc/edit-lines arg)
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;; The following is almost identical to `mc/mark-more-like-this-extended',
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;; but uses a hydra (`mc/mark-more-hydra') instead of a transient key map.
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(mc/mmlte--down)
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(mc/mark-more-hydra/body))))
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(defun memespace-region ()
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"Make a meme out of it."
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(interactive)
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(let* ((start (region-beginning))
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(end (region-end))
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(memed
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(message
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(s-trim-right
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(apply #'string
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(-flatten
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(nreverse
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(-reduce-from (lambda (acc x)
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(cons (cons x (-repeat (+ 1 (length acc)) 32)) acc))
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'()
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(string-to-list (buffer-substring-no-properties start end))))))))))
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(save-excursion (delete-region start end)
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(goto-char start)
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(insert memed))))
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(defun insert-todo-comment (prefix todo)
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"Insert a comment at point with something for me to do."
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(interactive "P\nsWhat needs doing? ")
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(save-excursion
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(move-end-of-line nil)
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(insert (format " %s TODO(%s): %s"
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(s-trim-right comment-start)
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(if prefix (read-string "Who needs to do this? ")
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(getenv "USER"))
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todo))))
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;; Custom text scale adjustment functions that operate on the entire instance
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(defun modify-text-scale (factor)
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(set-face-attribute 'default nil
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:height (+ (* factor 5) (face-attribute 'default :height))))
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(defun increase-default-text-scale (prefix)
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"Increase default text scale in all Emacs frames, or just the
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current frame if PREFIX is set."
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(interactive "P")
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(if prefix (text-scale-increase 1)
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(modify-text-scale 1)))
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(defun decrease-default-text-scale (prefix)
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"Increase default text scale in all Emacs frames, or just the
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current frame if PREFIX is set."
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(interactive "P")
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(if prefix (text-scale-decrease 1)
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(modify-text-scale -1)))
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(defun set-default-text-scale (prefix &optional to)
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"Set the default text scale to the specified value, or the
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default. Restores current frame's text scale only, if PREFIX is
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set."
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(interactive "P")
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(if prefix (text-scale-adjust 0)
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(set-face-attribute 'default nil :height (or to 120))))
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(defun notmuch-depot-apply-patch ()
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"Apply the currently opened notmuch message as a patch on the
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depot."
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(interactive)
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;; The implementation works by letting notmuch render a raw message
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;; and capturing it by overriding the `view-buffer' function it
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;; calls after rendering.
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;;
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;; The buffer is then passed to `git-am'.
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(cl-letf (((symbol-function 'view-buffer)
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(lambda (buffer &optional exit-action) buffer)))
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(if-let ((raw-buffer (notmuch-show-view-raw-message)))
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(progn
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(with-current-buffer raw-buffer
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(call-shell-region (point-min) (point-max) "git am -C ~/depot")
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(message "Patch applied!")
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(kill-buffer))
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(magit-status "~/depot"))
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(warn "notmuch failed to render the raw message buffer"))))
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(defun scrot-select ()
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"Take a screenshot based on a mouse-selection and save it to
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~/screenshots."
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(interactive)
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(shell-command "scrot '$a_%Y-%m-%d_%s.png' -s -e 'mv $f ~/screenshots/'"))
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(defun graph-unread-mails ()
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"Create a bar chart of unread mails based on notmuch tags.
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Certain tags are excluded from the overview."
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(interactive)
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(let ((tag-counts
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(-keep (-lambda ((name . search))
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(let ((count
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(string-to-number
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(s-trim
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(notmuch-command-to-string "count" search "and" "tag:unread")))))
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(when (>= count 1) (cons name count))))
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(notmuch-hello-generate-tag-alist '("unread" "signed" "attachment" "important")))))
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(chart-bar-quickie
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(if (< (length tag-counts) 6)
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'vertical 'horizontal)
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"Unread emails"
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(-map #'car tag-counts) "Tag:"
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(-map #'cdr tag-counts) "Count:")))
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(defun notmuch-show-open-or-close-subthread (&optional prefix)
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"Open or close the subthread from (and including) the message at point."
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(interactive "P")
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(save-excursion
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(let ((current-depth (map-elt (notmuch-show-get-message-properties) :depth 0)))
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(loop do (notmuch-show-message-visible (notmuch-show-get-message-properties) prefix)
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until (or (not (notmuch-show-goto-message-next))
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(= (map-elt (notmuch-show-get-message-properties) :depth) current-depth)))))
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(force-window-update))
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(defun vterm-send-ctrl-x ()
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"Sends `C-x' to the libvterm."
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(interactive)
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(vterm-send-key "x" nil nil t))
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(provide 'functions)
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