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/lang/c.el

@@ -0,0 +1,39 @@
+;; c.el -*- lexical-binding: t; -*-
+
+;; C / C++ fallback style (Linux-like)
+(setq c-default-style "linux"
+      c-basic-offset 4
+      tab-width 8)
+
+(add-hook 'c-mode-common-hook
+          (lambda ()
+            (setq indent-tabs-mode t)))
+
+;; Tree-sitter C/C++
+(setq c-ts-mode-indent-offset 4)
+(setq c++-ts-mode-indent-offset 4)
+
+(with-eval-after-load 'lsp
+    ;; Clangd configurations
+  (setq lsp-clients-clangd-args
+	'("--background-index"
+	  "--clang-tidy"
+	  "--completion-style=detailed"
+	  "--header-insertion=never"
+	  "--header-insertion-decorators"
+	  "--pch-storage=memory"
+	  "--log=error"
+	  "--ranking-model=heuristics"
+	  "--malloc-trim"
+	  "--limit-results=500"
+	  "--limit-references=2000")))
+
+(with-eval-after-load 'dap-mode
+  (require 'dap-cpptools))
+
+(add-hook 'c-ts-mode-hook #'fscotto/disable-c-formatting)
+(add-hook 'c-mode-hook    #'fscotto/disable-c-formatting)
+
+(provide 'c)
+
+;;; c.el ends here

dotfiles/desktop/.emacs.d/lisp/lang/docker.el

@@ -0,0 +1,8 @@
+;;; docker.el -*- lexical-binding: t; -*-
+
+(use-package dockerfile-mode
+  :ensure t)
+
+(provide 'docker)
+
+;;; docker.el ends here

dotfiles/desktop/.emacs.d/lisp/lang/golang.el

@@ -0,0 +1,89 @@
+;;=================================================================
+;; Go Language Support
+;;=================================================================
+
+(use-package go-ts-mode
+  :ensure nil
+  :mode "\\.go\\'"
+  :hook
+  ((go-ts-mode . lsp-deferred)
+   (go-ts-mode . fscotto/go-format-on-save)))
+
+(use-package go-mod-ts-mode
+  :ensure nil
+  :mode
+  (("/go\\.mod\\'" . go-mod-ts-mode)
+   ("/go\\.sum\\'" . go-mod-ts-mode))
+  :hook
+  ((go-mod-ts-mode . lsp-deferred)
+   ;; restart gopls only when go.mod/go.sum are saved (buffer-local)
+   (go-mod-ts-mode . (lambda ()
+                       (add-hook 'after-save-hook
+                                 (lambda ()
+                                   (when (lsp-workspaces)
+                                     (lsp-restart-workspace)))
+                                 nil t)))))
+
+(with-eval-after-load 'project
+  (add-to-list 'project-vc-extra-root-markers "go.mod"))
+
+(with-eval-after-load 'lsp-mode
+  ;; gopls settings (single source of truth)
+  (lsp-register-custom-settings
+   '(("gopls.staticcheck" t)
+     ("gopls.gofumpt" t)
+     ;; ("gopls.experimentalWorkspaceModule" t)
+     ("gopls.expandWorkspaceToModule" t)
+     ("gopls.directoryFilters" ["-vendor"])
+     ("gopls.analyses.unusedparams" t)
+     ("gopls.analyses.shadow" t)
+     ("gopls.analyses.nilness" t)
+     ("gopls.analyses.useany" t)
+     ("gopls.env" ((GO111MODULE . "on"))))))
+
+(with-eval-after-load 'flycheck
+  ;; Usa golangci-lint in Go
+  (add-hook 'go-ts-mode-hook
+	    (lambda ()
+	      (setq-local flycheck-checker 'golangci-lint)
+	      (setq-local flycheck-check-syntax-automatically '(save mode-enabled))
+	      (flycheck-mode 1))))
+ 
+(use-package dap-dlv-go
+  :after (dap-mode go-ts-mode))
+
+(with-eval-after-load 'dap-dlv-go
+  ;; Debug all tests in module
+  (dap-register-debug-template
+   "Go :: Debug all tests"
+   (list :type "go"
+         :request "launch"
+         :name "Go :: Debug all tests"
+         :mode "test"
+         :program "${workspaceFolder}"
+         :cwd "${workspaceFolder}"))
+
+  ;; Debug tests in current package
+  (dap-register-debug-template
+   "Go :: Debug package tests"
+   (list :type "go"
+         :request "launch"
+         :name "Go :: Debug package tests"
+         :mode "test"
+         :program "${fileDirname}"
+         :cwd "${fileDirname}"))
+
+  ;; Debug test at point
+  (dap-register-debug-template
+   "Go :: Debug test at point"
+   (list :type "go"
+         :request "launch"
+         :name "Go :: Debug test at point"
+         :mode "test"
+         :program "${fileDirname}"
+         :cwd "${fileDirname}"
+         :args (list "-test.run" "${input:testName}"))))
+
+(add-hook 'dap-terminated-hook
+          (lambda (_)
+            (delete-other-windows)))

dotfiles/desktop/.emacs.d/lisp/lang/json.el

@@ -0,0 +1,7 @@
+;;; json.el -*- lexical-binding: t -*-
+(use-package json-mode
+  :ensure t)
+
+(provide 'json)
+
+;;; json.el ends here

dotfiles/desktop/.emacs.d/lisp/lang/markdown.el

@@ -0,0 +1,8 @@
+;;; markdown.el -*- lexical-binding: t; -*-
+(use-package markdown-mode
+  :ensure t
+  :mode ("README\\.md\\'" . gfm-mode)
+  :init (setq markdown-command "multimarkdown"))
+
+(provide 'markdown)
+;;; markdown.el ends here

dotfiles/desktop/.emacs.d/lisp/lang/org.el

@@ -0,0 +1,46 @@
+;;; org.el -*- lexical-binding: t; -*-
+
+(use-package htmlize
+  :ensure t)
+
+(use-package org
+  :init
+  (setq org-clock-mode-line-total 'today
+        org-fontify-quote-and-verse-blocks t
+        org-indent-mode t
+        org-return-follows-link t
+        org-startup-folded 'content
+        org-todo-keywords '((sequence "🆕(t)" "▶️(s)" "⏳(w)" "🔎(p)" "|" "✅(d)" "🗑(c)" "👨(g)")))
+  :config
+  (add-hook 'org-mode-hook 'org-indent-mode)
+  (add-hook 'org-mode-hook 'flyspell-mode))
+
+(use-package org-bullets
+  :ensure t
+  :init
+  (setq org-bullets-bullet-list '("❯" "❯❯" "❯❯❯" "❯❯❯❯" "❯❯❯❯❯"))
+  :config
+  (add-hook 'org-mode-hook 'org-bullets-mode))
+
+(use-package org-re-reveal
+  :ensure t
+  :init
+  (setq org-re-reveal-transition 'none
+        org-re-reveal-theme "dracula"))
+
+(use-package ob-mermaid
+  :ensure t
+  :init
+  (setq ob-mermaid-cli-path "mmdc")
+  (org-babel-do-load-languages
+   'org-babel-load-languages
+   '((mermaid . t)
+     (scheme . t))))
+
+
+;; Setting default directory for Org files
+(setq org-directory "~/Remotes/pCloud/Org")
+
+(provide 'org)
+
+;;; org.el ends here

dotfiles/desktop/.emacs.d/lisp/lang/shell.el

@@ -0,0 +1,11 @@
+(with-eval-after-load 'flycheck
+  (add-hook 'bash-ts-mode-hook 'flycheck-mode))
+
+(use-package reformatter
+  :ensure t
+  :config
+  (reformatter-define shfmt-format
+    :program "shfmt"
+    :args '("-i" "2" "-ci")))
+
+(add-hook 'bash-ts-mode-hook #'shfmt-format-on-save-mode)

dotfiles/desktop/.emacs.d/lisp/lang/yaml.el

@@ -0,0 +1,8 @@
+;;; yaml.el -*- lexical-binding: t; -*-
+
+(use-package yaml-mode
+  :ensure t)
+
+(provide 'yaml)
+
+;;; yaml.el ends here