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;;; prog-yaml --- YAML Settings -*- lexical-binding: t; coding: utf-8; -*-
;; author: Craig Jennings <c@cjennings.net>
;;; Commentary:
;; YAML editing with tree-sitter highlighting and one-key formatting.
;;
;; Features:
;; - Tree-sitter: Syntax highlighting and structural navigation
;; - Formatting: Normalize indentation and style via C-; f
;;
;; Workflow:
;; 1. Open .yml/.yaml file → yaml-ts-mode with tree-sitter highlighting
;; 2. C-; f → Format buffer with prettier
;;; Code:
;; -------------------------------- YAML Mode ----------------------------------
;; tree-sitter mode for YAML files (built-in, Emacs 29+)
;; NOTE: No :mode directive — treesit-auto (in prog-general.el) handles
;; the auto-mode-alist mapping and auto-installs the grammar on first use.
(use-package yaml-ts-mode
:ensure nil
:defer t)
;; -------------------------------- Formatting ---------------------------------
;; normalize indentation and style, bound to standard format key
(defun cj/yaml-format-buffer ()
"Format the current YAML buffer with prettier.
Preserves point position as closely as possible."
(interactive)
(if (executable-find "prettier")
(let ((point (point)))
(shell-command-on-region (point-min) (point-max)
"prettier --parser yaml" nil t)
(goto-char (min point (point-max))))
(user-error "prettier not found; install with: npm install -g prettier")))
(defun cj/yaml-setup ()
"Set up YAML buffer keybindings and linting."
(local-set-key (kbd "C-; f") #'cj/yaml-format-buffer)
(flycheck-mode 1))
(add-hook 'yaml-ts-mode-hook #'cj/yaml-setup)
(provide 'prog-yaml)
;;; prog-yaml.el ends here
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