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dotfiles/emacs/.emacs.d/init.el
2025-12-16 17:08:25 +01:00

671 lines
20 KiB
EmacsLisp

;; Initial greeting for debugging
(message "Welcome to Emacs")
(message "Loading user configuration...")
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; LOOK AND FEEL ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Load default theme
(load-theme 'wombat)
;; Setting default font
(set-frame-font "Iosevka Nerd Font 14" nil t)
;; Remove toolbar
(tool-bar-mode -1)
;; Remove menu
(menu-bar-mode -1)
;; Disable startup screen
(setq inhibit-startup-screen t)
;; Disable splash screen
(setq inhibit-splash-screen t)
;; Start all frames maximized
(add-to-list 'default-frame-alist '(fullscreen . maximized))
;; Remove scrollbar
(scroll-bar-mode -1)
;; Simple 'y' for 'yes' and 'n' for 'no'
(defalias 'yes-or-no-p 'y-or-n-p)
;; Set global value for paragraph witdh
(setq-default fill-column 120)
;; Stop Emacs from losing informations
(setq undo-limit 8000000)
(setq undo-strong-limit 12000000)
;; Smooth scroll
(setq scroll-step 3)
(setq ring-bell-function 'ignore)
;; Add column number in the status line
(column-number-mode)
;; View clock in the status line
(display-time)
;; Enable line numbers in the programming mode only
(add-hook 'prog-mode-hook 'display-line-numbers-mode)
;; Enable line numbers in the configuration mode only
(add-hook 'conf-mode-hook 'display-line-numbers-mode)
;; Setting default directory for Org files
(setq org-directory "~/Remotes/pCloud/Org")
;; --- Startup speed tweaks ----------------------------------------------------
;; Temporarily increase GC threshold during init
(defvar fscotto/gc-cons-threshold-orig gc-cons-threshold)
(setq gc-cons-threshold (* 50 1000 1000)) ;; 50MB for init
;; Speedup file-name-handler during init
(defvar fscotto/file-name-handler-alist-orig file-name-handler-alist)
(setq file-name-handler-alist nil)
;; Restore after init
(add-hook 'emacs-startup-hook
(lambda ()
(setq gc-cons-threshold fscotto/gc-cons-threshold-orig)
(setq file-name-handler-alist fscotto/file-name-handler-alist-orig)
(garbage-collect)))
;; LSP responsiveness
(setq read-process-output-max (* 1024 1024)) ;; 1MB, utile per lsp-mode
(setq lsp-idle-delay 0.5) ;; meno ritardo prima che LSP aggiorni info
(setq inhibit-compacting-font-caches t)
;; ---------------------------------------------------------------------------
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; EDITOR OPTIONS ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(setq standard-indent 4)
(setq tab-stop-list nil)
(setq indent-tabs-mode nil)
;; Setting variables
(setq vc-follow-symlinks 't)
(prefer-coding-system 'utf-8-unix)
(setq custom-file (null-device))
;;;;;;;;;;;;;;;;;;;;
;; USER FUNCTIONS ;;
;;;;;;;;;;;;;;;;;;;;
;;functions to support syncing .elfeed between machines
;;makes sure elfeed reads index from disk before launching
(defun fscotto/elfeed-load-db-and-open ()
"Wrapper to load the elfeed db from disk before opening URL https://pragmaticemacs.wordpress.com/2016/08/17/read-your-rss-feeds-in-emacs-with-elfeed/
Created: 2016-08-17
Updated: 2025-06-13"
(interactive)
(elfeed)
(elfeed-db-load)
;; (elfeed-search-update--force)
(elfeed-update)
(elfeed-db-save))
(defun fscotto/project-root ()
"Return projectile project root or fallback to default-directory."
(if (featurep 'projectile)
(or (projectile-project-root) default-directory)
default-directory))
(defun fscotto/project-dashboard ()
"Open a project dashboard: root + Magit + LSP."
(interactive)
(let ((root (fscotto/project-root)))
(dired root)
(magit-status root)
(lsp)))
(defun fscotto/project-vterm ()
"Open vterm in project root."
(interactive)
(let ((default-directory (fscotto/project-root)))
(vterm)))
(defun fscotto/project-magit-status ()
"Open magit-status in project root."
(interactive)
(let ((default-directory (fscotto/project-root)))
(magit-status)))
(defun fscotto/magit-dispatch ()
"Load Magit if necessary and open magit-dispatch."
(interactive)
(require 'magit)
(call-interactively #'magit-dispatch))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; PACKAGES ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Initialize package system via use-package
(package-initialize)
(require 'use-package)
(use-package package
:config
;; Setting repo priorities
(setq package-archive-priorities
'(("melpa-stable" . 2)
("MELPA" . 1)
("gnu" . 0)))
;; Setting repo URL
(setq package-archives
'(("melpa-stable" . "https://stable.melpa.org/packages/")
("MELPA" . "https://melpa.org/packages/")
("gnu" . "https://elpa.gnu.org/packages/"))))
;; Status line like Doom Emacs
(use-package doom-modeline
:ensure t
:config
(setq doom-modeline-height 25
doom-modeline-bar-width 3
doom-modeline-project-detection 'projectile)
:init (doom-modeline-mode 1))
;; Help to remember or discover keybindings
(use-package which-key
:ensure t
:defer 1
:config
(which-key-mode)
(setq which-key-idle-delay 0.45
which-key-idle-secondary-delay 0.05
which-key-max-display-columns 3
which-key-max-description-length 45))
;; ============================================================================
;; Doom-style which-key hierarchy for fscotto
;; ============================================================================
(with-eval-after-load 'which-key
;; --------------------------------------------------------------------------
;; Top-level prefixes
;; --------------------------------------------------------------------------
(which-key-add-key-based-replacements
"C-c !" "Analyze"
"C-c o" "Open"
"C-c v" "Version control"
"C-c l" "LSP"
"C-c t" "TODO / Annotations"
"C-c b" "Buffers"
"C-c p" "Project"
"C-c d" "Debug"
"C-c g" "Git"
"C-c e" "Email / Elfeed")
;; --------------------------------------------------------------------------
;; Open (C-c o …)
;; --------------------------------------------------------------------------
(which-key-add-key-based-replacements
"C-c o f" "RSS (Elfeed)"
"C-c o m" "mu4e (Email Client)"
"C-c o T" "Terminal (vterm)")
;; --------------------------------------------------------------------------
;; Version control
;; --------------------------------------------------------------------------
(which-key-add-key-based-replacements
"C-c v" "Version control"
"C-c v g" "Magit status (legacy)")
(which-key-add-key-based-replacements
"C-c g" "Git"
;; Core
"C-c g g" "Status"
"C-c g s" "Status"
;; "C-c g b" "Branch"
;; "C-c g c" "Commit"
"C-c g p" "Push / Pull"
"C-c g f" "Fetch"
"C-c g l" "Log"
"C-c g S" "Stash"
;; Files
"C-c g d" "Diff"
"C-c g D" "Diff (cached)"
"C-c g B" "Blame"
;; Rebase / Reset
"C-c g r" "Rebase"
"C-c g R" "Reset"
;; Remote
"C-c g y" "Show refs"
"C-c g o" "Browse remote")
;; --------------------------------------------------------------------------
;; Buffers
;; --------------------------------------------------------------------------
(which-key-add-key-based-replacements
"C-x C-b" "ibuffer")
;; --------------------------------------------------------------------------
;; TODO / hl-todo
;; --------------------------------------------------------------------------
(which-key-add-key-based-replacements
"C-t" "hl-todo"
"C-t p" "Previous TODO"
"C-t n" "Next TODO"
"C-t o" "Occur (list)"
"C-t i" "Insert TODO")
;; --------------------------------------------------------------------------
;; LSP (C-c l …)
;; --------------------------------------------------------------------------
(which-key-add-key-based-replacements
"C-c l" "LSP"
"C-c l a" "Code actions"
"C-c l r" "Rename symbol"
"C-c l f" "Format buffer"
"C-c l d" "Go to definition"
"C-c l D" "Go to type definition"
"C-c l i" "Go to implementation"
"C-c l h" "Hover documentation"
"C-c l s" "Workspace symbols"
"C-c l R" "Restart server")
;; --------------------------------------------------------------------------
;; Elfeed modes
;; --------------------------------------------------------------------------
(which-key-add-key-based-replacements
"w" "Yank"
"R" "Update feeds"
"q" "Quit")
;; --------------------------------------------------------------------------
;; Debug / DAP
;; --------------------------------------------------------------------------
(which-key-add-key-based-replacements
"C-c d" "Debug"
"C-c d d" "Start debug session"
"C-c d b" "Toggle breakpoint"
"C-c d c" "Continue"
"C-c d n" "Next"
"C-c d i" "Step in"
"C-c d o" "Step out")
;; --------------------------------------------------------------------------
;; Project (future)
;; --------------------------------------------------------------------------
(which-key-add-key-based-replacements
"C-c p" "Project"
;; Core
"C-c p p" "Switch project"
"C-c p f" "Find file"
"C-c p d" "Find directory"
"C-c p b" "Switch buffer"
"C-c p k" "Kill project buffers"
"C-c p r" "Recent files"
;; Search
"C-c p s" "Search"
"C-c p s g" "Grep (ripgrep)"
"C-c p s r" "Replace in project"
;; Actions
"C-c p c" "Compile"
"C-c p t" "Test"
"C-c p v" "Open term in project"
"C-c p e" "Edit project config"
"C-c p g" "Project Git status"
"C-c p D" "Project Dashboard"
"C-c p x" "Open Terminal"
"C-c p 4" "Other Window"
"C-c p 5" "Other Frame"
"C-c p x 4" "Other Window"
;; Cache
"C-c p i" "Invalidate cache")
;; --------------------------------------------------------------------------
;; Cleanup annoying +prefix
;; --------------------------------------------------------------------------
(which-key-add-key-based-replacements
"+prefix" "Prefix"
"+lsp" "LSP"
"+debug" "Debug"
"+project" "Project"))
;; Configuration for mu4e, an interface for mu email index, running inside Emacs
(use-package mu4e
:ensure nil
;; :load-path "/usr/share/emacs/site-lisp/mu4e/"
:defer 20 ; Wait until 20 seconds after startup
:bind (:map global-map ("C-c o m" . mu4e))
:config
;; This is set to 't' to avoid mail syncing issues when using mbsync
(setq mu4e-change-filenames-when-moving t)
;; Refresh mail using isync every 10 minutes
(setq mu4e-update-interval (* 10 60))
(setq mu4e-get-mail-command "~/.emacs.d/scripts/email_sync.sh")
(setq mu4e-maildir "~/Maildir")
;; Configure email accounts
(setq mu4e-contexts
(list
;; Protonmail Account
(make-mu4e-context
:name "Protonmail"
:match-func
(lambda (msg)
(when msg
(string-prefix-p "/ProtonMailAccount" (mu4e-message-field msg :maildir))))
:vars '((user-mail-address . "fscottodisantolo@protonmail.com")
(user-full-name . "Fabio Scotto di Santolo")
(mu4e-drafts-folder . "/ProtonMailAccount/Drafts")
(mu4e-sent-folder . "/ProtonMailAccount/Sent")
(mu4e-refile-folder . "/ProtonMailAccount/All Mail")
(mu4e-trash-folder . "/ProtonMailAccount/Trash")))
;; iCloud Account
(make-mu4e-context
:name "iCloud Mail"
:match-func
(lambda (msg)
(when msg
(string-prefix-p "/iCloudAccount" (mu4e-message-field msg :maildir))))
:vars '((user-mail-address . "fscottodisantolo@icloud.com")
(user-full-name . "Fabio Scotto di Santolo")
(mu4e-drafts-folder . "/iCloudAccount/Drafts")
(mu4e-sent-folder . "/iCloudAccount/Sent Messages")
(mu4e-refile-folder . "/iCloudAccount/INBOX")
(mu4e-trash-folder . "/iCloudAccount/Junk")))))
(setq sendmail-program "/usr/bin/msmtp"
send-mail-function 'sendmail-send-it
message-sendmail-f-is-evil t
message-sendmail-extra-arguments '("--read-envelope-from")
message-send-mail-function 'message-send-mail-with-sendmail))
;; Configure elfeed for RSS feed
(use-package elfeed
:ensure t
:custom
(elfeed-enclosure-default-dir "~/Downloads/")
(elfeed-search-remain-on-entry t)
(elfeed-search-title-max-width 100)
(elfeed-search-title-min-width 30)
(elfeed-search-trailing-width 25)
(elfeed-show-truncate-long-urls t)
(elfeed-sort-order 'descending)
(elfeed-search-filter "+unread")
:bind
("C-c o f" . fscotto/elfeed-load-db-and-open)
(:map elfeed-search-mode-map
("w" . elfeed-search-yank)
("R" . elfeed-update)
("q" . elfeed-kill-buffer))
(:map elfeed-show-mode-map
("S" . elfeed-show-new-live-search) ; moved to free up 's'
("c" . (lambda () (interactive) (org-capture nil "capture")))
("e" . email-elfeed-entry)
("f" . elfeed-show-fetch-full-text)
("w" . elfeed-show-yank))
:hook
(elfeed-show-mode . visual-line-mode))
(use-package elfeed-org
:ensure t
:after elfeed
:custom
;; Optionally specify a number of files containing elfeed
;; configuration. If not set then the location below is used.
;; Note: The customize interface is also supported.
(rmh-elfeed-org-files (list "~/.emacs.d/elfeed.org")))
(with-eval-after-load 'elfeed
(elfeed-org))
;; Terminal
(use-package vterm
:ensure t
:bind (:map global-map
("C-c o T" . vterm)
("C-c C-t" . vterm-copy-mode)))
;; FIXME PDF viewer with annotations
;; (use-package pdf-tools
;; :ensure t
;; :config
;; (pdf-tools-install))
;; EPub viewer
(use-package nov
:ensure t
:mode ("\\.epub\\'" . nov-mode))
(use-package visual-fill-column
:ensure t)
;; Git plugin
(use-package magit
:ensure t
:commands (magit-status magit-log)
:init
;; Entry point principale
(setq magit-display-buffer-function #'magit-display-buffer-fullframe-status-v1)
:config
;; Performance & UX
(setq magit-refresh-status-buffer nil)
(setq magit-repository-directories
'(("~/Projects" . 2)
("~/Work" . 2))))
;; Legacy alias (keep muscle memory)
(global-set-key (kbd "C-c v g") #'magit-status)
(global-set-key (kbd "C-c g") #'fscotto/magit-dispatch)
;; Git leader key (Doom-style)
;; (with-eval-after-load 'magit
;; (define-key global-map (kbd "C-c g") 'magit-dispatch))
;; Highlight keywords to remember the activity when coding.
(use-package hl-todo
:ensure t
:commands (global-hl-todo-mode)
:init (global-hl-todo-mode))
(setq hl-todo-keyword-faces
'(("TODO" . "#94e2d5")
("FIXME" . "#f38ba8")
("DEBUG" . "#cba6f7")
("GOTCHA" . "#eba0ac")
("STUB" . "#89b4fa")))
(keymap-set hl-todo-mode-map "C-t p" #'hl-todo-previous)
(keymap-set hl-todo-mode-map "C-t n" #'hl-todo-next)
(keymap-set hl-todo-mode-map "C-t o" #'hl-todo-occur)
(keymap-set hl-todo-mode-map "C-t i" #'hl-todo-insert)
;; Highlight for i3 config file
(use-package i3wm-config-mode
:ensure t)
(use-package ivy
:ensure t
:config
(ivy-mode 1))
(use-package ibuffer
:ensure t
:bind (:map global-map ("C-x C-b" . ibuffer)))
(use-package ibuffer-tramp
:ensure t)
(use-package ibuffer-vc
:ensure t)
(use-package ibuffer-projectile
:ensure t)
(add-hook 'ibuffer-mode-hook
(lambda ()
(ibuffer-projectile-set-filter-groups)))
;; ============================================================================
;; Projectile - Project management (Doom-style)
;; ============================================================================
(use-package projectile
:ensure t
:defer 1
:init
;; Root detection
(setq projectile-project-search-path '("~/Projects" "~/Work"))
(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))
;; Projectile keybindings (Doom-style)
(with-eval-after-load 'projectile
(define-key projectile-mode-map (kbd "C-c p") 'projectile-command-map))
(with-eval-after-load 'projectile
(define-key projectile-command-map (kbd "v") #'fscotto/project-vterm))
(with-eval-after-load 'projectile
(define-key projectile-command-map (kbd "g") #'fscotto/project-magit-status))
(global-set-key (kbd "C-c p D") #'fscotto/project-dashboard)
;; Add autocomplete feature to Emacs
(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))
(use-package flycheck
:ensure t
:hook (prog-mode . flycheck-mode))
(use-package treesit
:ensure nil
:config
(setq treesit-font-lock-level 4)
(setq major-mode-remap-alist
'((c-mode . c-ts-mode)
(c++-mode . c++-ts-mode)
(python-mode . python-ts-mode)
(bash-mode . bash-ts-mode)))
(setq treesit-language-source-alist
'((c "https://github.com/tree-sitter/tree-sitter-c")
(cpp "https://github.com/tree-sitter/tree-sitter-cpp")
(python "https://github.com/tree-sitter/tree-sitter-python")
(bash "https://github.com/tree-sitter/tree-sitter-bash")
(go "https://github.com/tree-sitter/tree-sitter-go"))))
(use-package lsp-mode
:ensure t
:commands lsp
:init
;; set prefix for lsp-command-keymap (few alternatives - "C-l", "C-c l")
(setq lsp-keymap-prefix "C-c l")
:hook
((c-mode
c-ts-mode
c++-mode
c++-ts-mode
python-mode
python-ts-mode
go-mode
go-ts-mode
bash-mode
bash-ts-mode) . lsp)
:config
;; Performance
(setq lsp-enable-symbol-highlighting t
lsp-enable-snippet t
lsp-log-io nil
lsp-completion-provider :capf
;; Disable for huge projects
;; lsp-enable-file-watchers nil
lsp-headerline-breadcrumb-enable 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 lsp-ivy
:ensure t)
(use-package dap-mode
:ensure t
:after lsp-mode
:commands dap-debug
:init
;; Debug prefix
(setq dap-auto-configure-features '(sessions locals controls tooltip))
:config
(dap-mode 1)
(dap-ui-mode 1)
(dap-tooltip-mode 1)
;; Auto show breakpoints + REPL
(setq dap-ui-buffer-configurations
'((dap-ui-repl . ((side . right) (slot . 1) (window-width . 0.33)))
(dap-ui-locals . ((side . right) (slot . 2) (window-width . 0.33)))
(dap-ui-breakpoints . ((side . left) (slot . 1) (window-width . 0.20))))))
;;;;;;;;;;;;;;;;;;;;;;
;; Enable debuggers ;;
;;;;;;;;;;;;;;;;;;;;;;
;; For C/C++
(require 'dap-gdb-lldb)
(setq dap-gdb-lldb-debug-program '("gdb"))
;; For Go
(require 'dap-go)
;; For Python
(require 'dap-python)
(setq dap-python-debugger 'debugpy)
(with-eval-after-load 'dap-mode
(global-set-key (kbd "C-c d d") #'dap-debug)
(global-set-key (kbd "C-c d b") #'dap-breakpoint-toggle)
(global-set-key (kbd "C-c d c") #'dap-continue)
(global-set-key (kbd "C-c d n") #'dap-next)
(global-set-key (kbd "C-c d i") #'dap-step-in)
(global-set-key (kbd "C-c d o") #'dap-step-out)
(global-set-key (kbd "C-c d r") #'dap-restart-frame)
(global-set-key (kbd "C-c d q") #'dap-disconnect))
(message "...user configuration loaded")