Change-Id: Ibe3264769ab6e6d1400088e8a72d3ef22dc4cd78 Reviewed-on: https://cl.tvl.fyi/c/depot/+/4514 Reviewed-by: tazjin <mail@tazj.in> Autosubmit: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
		
			
				
	
	
		
			333 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			EmacsLisp
		
	
	
	
	
	
			
		
		
	
	
			333 lines
		
	
	
	
		
			12 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 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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;; 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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(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 `run-external-command'.")
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(defun run-external-command--handler (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 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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    (run-external-command--handler
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     (completing-read "Command: " external-commands-list
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                      nil                             ;; predicate
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                      t                               ;; require-match
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                      nil                             ;; initial-input
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                      ;; hist
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                      'external-commands-history))))
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(defun password-store-lookup (&optional password-store-dir)
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  "Interactive password-store lookup function that actually uses
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the GPG agent correctly."
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  (interactive)
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  (let* ((entry (completing-read "Copy password of entry: "
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                   (password-store-list (or password-store-dir
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                                            (password-store-dir)))
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                   nil ;; predicate
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                   t   ;; require-match
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                   ))
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         (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 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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  (magit-status
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   (completing-read "Repository: " (magit-list-repos))))
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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 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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(defun find-depot-project (dir)
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  "Function used in the `project-find-functions' hook list to
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  determine the current project root of a depot project."
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  (when (s-starts-with? "/depot" dir)
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    (if (f-exists-p (f-join dir "default.nix"))
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        (cons 'transient dir)
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      (find-depot-project (f-parent dir)))))
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(add-to-list 'project-find-functions #'find-depot-project)
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(defun magit-find-file-worktree ()
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  (interactive)
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  "Find a file in the current (ma)git worktree."
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  (magit-find-file--internal "{worktree}"
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                             (magit-read-file-from-rev "HEAD" "Find file")
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                             #'pop-to-buffer-same-window))
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(defun songwhip--handle-result (status &optional cbargs)
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  ;; TODO(tazjin): Inspect status, which looks different in practice
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  ;; than the manual claims.
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  (if-let* ((response (json-parse-string
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                       (buffer-substring url-http-end-of-headers (point-max))))
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            (sw-path (ht-get* response "data" "path"))
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            (link (format "https://songwhip.com/%s" sw-path))
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            (select-enable-clipboard t))
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      (progn
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        (kill-new link)
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        (message "Copied Songwhip link (%s)" link))
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    (warn "Something went wrong while retrieving Songwhip link!")
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    ;; For debug purposes, the buffer is persisted in this case.
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    (setq songwhip--debug-buffer (current-buffer))))
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(defun songwhip-lookup-url (url)
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  "Look up URL on Songwhip and copy the resulting link to the clipboard."
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  (interactive "sEnter source URL: ")
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  (let ((songwhip-url "https://songwhip.com/api/")
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        (url-request-method "POST")
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        (url-request-extra-headers '(("Content-Type" . "application/json")))
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        (url-request-data
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         (json-serialize `((country . "GB")
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                           (url . ,url)))))
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    (url-retrieve "https://songwhip.com/api/" #'songwhip--handle-result nil t t)
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    (message "Requesting Songwhip URL ... please hold the line.")))
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(defun rg-in-project (&optional prefix)
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  "Interactively call ripgrep in the current project, or fall
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  back to ripgrep default behaviour if prefix is set."
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  (interactive "P")
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  (counsel-rg nil (unless prefix
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                    (if-let ((pr (project-current)))
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                        (project-root pr)))))
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(defun zoxide-open-magit ()
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  "Query Zoxide for paths and open magit in the result."
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  (interactive)
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  (zoxide-open-with nil #'magit-status-setup-buffer))
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(provide 'functions)
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