Add Emacs desktop provisioning and dev toolchain packages

Install Emacs and copy the desktop .emacs.d config so the editor setup is managed with the rest of desktop dotfiles. Add vterm/build/debug dependencies plus C/C++ and Go tooling needed by the configured workflow.

dotfiles/desktop/.emacs.d/lisp/tools/completion.el

@@ -0,0 +1,63 @@
+;;; completion.el -*- lexical-binding: t; -*-
+
+(use-package ivy
+  :ensure t
+  :config
+  (ivy-mode 1))
+
+(use-package consult
+  :ensure t
+  :defer t)
+
+(use-package company
+    :ensure t
+    :custom
+    (company-tooltip-align-annotations 't)
+    (company-minimum-prefix-length 1)
+    (company-idle-delay 0.1)
+    :hook (prog-mode . company-mode))
+
+(with-eval-after-load 'company
+  (add-hook 'bash-ts-mode-hook 'company-mode))
+
+;; Static analysis for code base
+(use-package flycheck
+  :ensure t
+  :hook (prog-mode . flycheck-mode)
+  :config
+  (setq flycheck-check-syntax-automatically '(save mode-enabled)))
+
+;; Snippets
+(use-package yasnippet
+  :ensure t
+  :config
+  (setq yas/root-directory
+        (list "~/.emacs.d/snippets") yas-indent-line 'fixed)
+  (yas-global-mode))
+
+(use-package orderless
+  :ensure t
+  :custom
+  (completion-styles '(orderless basic))
+  (completion-category-overrides '((file (styles partial-completion))))
+  (completion-pcm-leading-wildcard t)
+  :config
+  (setq ivy-re-builders-alist '((t . orderless-ivy-re-builder)))
+  (add-to-list 'ivy-highlight-functions-alist '(orderless-ivy-re-builder . orderless-ivy-highlight)))
+
+(defun just-one-face (fn &rest args)
+  (let ((orderless-match-faces [completions-common-part]))
+    (apply fn args)))
+
+(advice-add 'company-capf--candidates :around #'just-one-face)
+
+(use-package smartparens
+  :ensure smartparens  ;; install the package
+  :hook (prog-mode text-mode markdown-mode) ;; add `smartparens-mode` to these hooks
+  :config
+  ;; load default config
+  (require 'smartparens-config))
+
+(provide 'completion)
+
+;;; completion.el ends here