e5f7fe430d
Instead of producing a binary that gets called by Emacs, with input/output serialisation, use a dynamic Emacs module that lets Emacs more-or-less directly call the relevant GTK functions. I'm doing this mostly as an experiment. Might be interesting to end up with a dynamic module that I can dump some experimental code into that improves my workflows. To do this, I've exposed the emacs binary used by my Emacs configuration in an additional `passthru` field. This ensures that the module is linked against the right version of Emacs. Change-Id: I1426994fe3455ed1b2a685c5a09705e29fa40950 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9163 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: tazjin <tazjin@tvl.su>
354 lines
14 KiB
EmacsLisp
354 lines
14 KiB
EmacsLisp
(require 'chart)
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(require 'dash)
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(require 'map)
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(require 'gio-list-apps) ;; native module!
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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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;; 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 (or (let ((epa-suppress-error-buffer t))
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(auth-source-pass-get 'secret entry))
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(error "failed to decrypt '%s', wrong password?" 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 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>" mc/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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(setq mc/cmds-to-run-for-all '(kill-region paredit-newline))
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(setq mc/cmds-to-run-once '(mc/mark-dwim
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mc/mark-more-hydra/mc/mmlte--down
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mc/mark-more-hydra/mc/mmlte--left
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mc/mark-more-hydra/mc/mmlte--right
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mc/mark-more-hydra/mc/mmlte--up
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mc/mark-more-hydra/mmlte--up
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mc/mark-more-hydra/nil))
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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 screenshot-select (filename)
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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 "sScreenshot filename: ")
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(let* ((path (f-join "~/screenshots"
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(format "%s-%d.png"
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(if (string-empty-p filename) "shot" filename)
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(time-convert nil 'integer)))))
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(shell-command (format "maim --select %s" path))
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(message "Wrote screenshot to %s" path)))
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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 find-cargo-project (dir)
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"Attempt to find the current project in `project-find-functions'
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by looking for a `Cargo.toml' file."
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(when dir
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(unless (equal "/" dir)
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(if (f-exists-p (f-join dir "Cargo.toml"))
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(cons 'transient dir)
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(find-cargo-project (f-parent dir))))))
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(add-to-list 'project-find-functions #'find-cargo-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 zoxide-open-project ()
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"Query Zoxide for paths, and open the result as appropriate (magit or dired)."
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(interactive)
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(zoxide-open-with
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nil
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(lambda (path)
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(condition-case err (magit-status-setup-buffer path)
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(magit-outside-git-repo (dired path))))))
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(defun toggle-nix-test-and-exp ()
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"Switch between the .nix and .exp file in a Tvix/Nix test."
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(interactive)
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(let* ((file (buffer-file-name))
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(other (if (s-suffix? ".nix" file)
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(s-replace-regexp ".nix$" ".exp" file)
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(if (s-suffix? ".exp" file)
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(s-replace-regexp ".exp$" ".nix" file)
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(error "Not a .nix/.exp file!")))))
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(find-file other)))
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(defun reliably-switch-buffer ()
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"Reliably and interactively switch buffers, without ending up in a
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situation where the buffer was renamed during selection and an
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empty new buffer is created.
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This is done by, in contrast to most buffer-switching functions,
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retaining a list of the buffer *objects* and their associated
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names, instead of only their names (which might change)."
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(interactive)
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(let* ((buffers (seq-map (lambda (b) (cons (buffer-name b) b))
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(seq-filter (lambda (b) (not (string-prefix-p " " (buffer-name b))))
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(buffer-list))))
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;; Annotate buffers that display remote files. I frequently
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;; want to see it, because I might have identically named
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;; files open locally and remotely at the same time, and it
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;; helps with differentiating them.
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(completion-extra-properties
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'(:annotation-function
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(lambda (name)
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(if-let* ((file (buffer-file-name (cdr (assoc name buffers))))
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(remote (file-remote-p file)))
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(format " [%s]" remote)))))
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(name (completing-read "Switch to buffer: " (seq-map #'car buffers)))
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(selected (or (cdr (assoc name buffers))
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;; Allow users to manually select invisible buffers ...
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(get-buffer name))))
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(switch-to-buffer (or selected name) nil 't)))
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(defun run-xdg-app ()
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"Use `//users/tazjin/gio-list-apps' to retrieve a list of
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installed (and visible) XDG apps, and let users launch them."
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(interactive)
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(let* ((apps (taz-list-xdg-apps))
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;; Display the command that will be run as an annotation
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(completion-extra-properties
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'(:annotation-function (lambda (app) (format " [%s]" (cdr (assoc app apps)))))))
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(run-external-command--handler (cdr (assoc (completing-read "App: " apps nil t) apps)))))
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(defun advice-remove-all (sym)
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"Remove all advices from symbol SYM."
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(interactive "aFunction symbol: ")
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(advice-mapc (lambda (advice _props) (advice-remove sym advice)) sym))
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(provide 'functions)
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