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

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

@@ -0,0 +1,24 @@
+(use-package dap-mode
+  :ensure t
+  :after lsp-mode
+  :hook (lsp-mode . dap-mode)
+  :init
+  ;; Enabling only some features
+  (setq dap-auto-configure-features '(sessions locals expressions repl))
+  :config
+  (dap-mode 1)
+  (dap-ui-mode 1)
+  (dap-ui-controls-mode 1)
+  ;; Auto show breakpoints + REPL
+  (setq dap-ui-buffer-configurations
+	'(;; RIGHT SIDE — Debug data (like IntelliJ)
+	  (dap-ui-locals     . ((side . right) (slot . 1) (window-width . 0.30)))
+	  (dap-ui-sessions   . ((side . right) (slot . 2) (window-width . 0.30)))
+	  (dap-ui-expressions . ((side . right) (slot . 3) (window-width . 0.30)))
+          ;; BOTTOM — Console / REPL
+	  (dap-ui-repl       . ((side . bottom) (slot . 1) (window-height . 0.25)))
+          (dap-ui-console    . ((side . bottom) (slot . 2) (window-height . 0.25)))))
+  ;; Loading DAP adapters
+  ;; For Python
+  (require 'dap-python)
+  (setq dap-python-debugger 'debugpy))

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

@@ -0,0 +1,49 @@
+;;; lsp.el -*- lexical-binding: t; -*-
+
+(use-package lsp-mode
+  :ensure t
+  :commands (lsp lsp-deferred)
+  :hook
+  ((c-mode
+    c-ts-mode
+    c++-mode
+    c++-ts-mode
+    python-mode
+    python-ts-mode
+    sh-mode
+    bash-ts-mode) . lsp-deferred)
+  :config
+  ;; Performance
+  (setq lsp-enable-symbol-highlighting t
+	lsp-enable-snippet t
+	lsp-log-io nil
+	lsp-modeline-code-actions-enable nil
+	lsp-modeline-diagnostics-enable nil
+	lsp-signature-auto-activate nil
+	lsp-enable-on-type-formatting nil
+        lsp-completion-provider :capf
+	lsp-diagnostics-provider :flycheck
+        lsp-headerline-breadcrumb-enable nil
+	lsp-enable-indentation nil
+	;; Disable for huge projects
+	lsp-enable-file-watchers nil
+        lsp-idle-delay 0.5))
+
+(use-package lsp-ui
+  :ensure t
+  :config
+  (setq lsp-ui-doc-enable t
+      lsp-ui-doc-delay 0.3
+      lsp-ui-sideline-enable t
+      lsp-ui-sideline-show-code-actions t))
+
+(use-package consult-lsp
+  :ensure t
+  :after (consult lsp-mode)
+  :commands
+  (consult-lsp-symbols
+   consult-lsp-diagnostics))
+
+(provide 'lsp)
+
+;;; lsp.el ends here

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

@@ -0,0 +1,25 @@
+;;; project.el - lexical-binding *-*
+
+(use-package projectile
+  :ensure t
+  :defer 1
+  :init
+  ;; Root detection
+  (setq projectile-project-search-path '("~/Projects" "~/Work" "~/Progetti" "~/.local/src"))
+  (setq projectile-completion-system 'ivy)
+  :config
+  ;; Performance
+  (setq projectile-enable-caching t)
+  (setq projectile-indexing-method 'hybrid)
+  (setq projectile-sort-order 'recently-active)
+  ;; Projectile as single source of truth
+  (setq projectile-switch-project-action #'projectile-dired)
+  ;; Use ripgrep if available
+  (when (executable-find "rg")
+    (setq projectile-generic-command "rg --files --hidden --glob '!.git'"))
+  ;; Enable globally
+  (projectile-mode 1))
+
+(provide 'project)
+
+;;; project.el ends here

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

@@ -0,0 +1,29 @@
+;;; treesitter.el -*- lexical-binding: t; -*-
+
+(use-package treesit
+  :ensure nil
+  :config
+  (setq treesit-font-lock-level 4)
+  (setq treesit-auto-install t)
+  (setq major-mode-remap-alist
+	'((c-mode . c-ts-mode)
+          (c++-mode . c++-ts-mode)
+	  (go-mode . go-ts-mode)
+	  (go-mod-mode . go-mod-ts-mode)
+          (python-mode . python-ts-mode)
+          (sh-mode . bash-ts-mode)))
+  (setq treesit-language-source-alist
+	'((bash "https://github.com/tree-sitter/tree-sitter-bash")
+	  (c "https://github.com/tree-sitter/tree-sitter-c")
+          (cpp "https://github.com/tree-sitter/tree-sitter-cpp")
+	  (dockerfile "https://github.com/camdencheek/tree-sitter-dockerfile")
+          (go "https://github.com/tree-sitter/tree-sitter-go")
+	  (gomod "https://github.com/camdencheek/tree-sitter-go-mod")
+	  (js "https://github.com/tree-sitter/tree-sitter-javascript")
+	  (json "https://github.com/tree-sitter/tree-sitter-json")
+	  (node "https://github.com/tree-sitter/node-tree-sitter")
+	  (python "https://github.com/tree-sitter/tree-sitter-python"))))
+
+(provide 'treesitter)
+
+;;; treesitter.el ends here