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;; ==================================================
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;; AVR Emacs IDE - Minimal Example init.el
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;; ==================================================
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;; --- 1. Basic Setup & Package Manager ---
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(setq inhibit-startup-message t)
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(require 'package)
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(setq package-archives '(("melpa" . "https://melpa.org/packages/")
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("elpa" . "https://elpa.gnu.org/packages/")))
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(package-initialize)
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;; Install use-package if not present
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(unless (package-installed-p 'use-package)
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(package-refresh-contents)
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(package-install 'use-package))
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(require 'use-package)
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(setq use-package-always-ensure t)
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;; Mache die Menüleiste, Werkzeugleiste und alte Scroll-Leiste unsichtbar
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(menu-bar-mode -1)
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(tool-bar-mode -1)
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(scroll-bar-mode -1)
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;; Erhöhe die Standard-Fensterbreite auf 120 Spalten, damit durch die Minimap (20 Spalten)
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;; immer noch genug Platz (100 Spalten) für den Code bleibt und dieser nicht umbricht.
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(add-to-list 'default-frame-alist '(width . 100))
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(add-to-list 'initial-frame-alist '(width . 100))
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;; Unterdrücke nervige Warnungen (z.B. beim Kompilieren von heruntergeladenen Paketen)
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(setq warning-minimum-level :error)
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(setq native-comp-async-report-warnings-errors 'silent)
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;; Aktiviere Zeilennummern links
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(global-display-line-numbers-mode 1)
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;; Sublime Text ähnliche Minimap (Vorschaubild) auf der rechten Seite
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(use-package minimap
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:init
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(setq minimap-window-location 'right)
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(setq minimap-update-delay 0.2)
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(setq minimap-width-fraction 0.01) ; 1% (wird durch Minimum überschrieben)
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(setq minimap-minimum-width 20) ; Erzwingt exakt feste 20 Spalten!
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:config
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;; Verhindert, dass das Minimap-Fenster beim Maximieren (Vollbild) des Emacs-Fensters mitwächst
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(advice-add 'minimap-new-minimap :after
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(lambda (&rest _)
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(when-let ((win (minimap-get-window)))
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(window-preserve-size win t t))))
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(minimap-mode 1))
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;; Deaktiviere die Erstellung von temporären #Dateien#, .#Lockfiles und Datei~ Backups
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(setq make-backup-files nil)
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(setq auto-save-default nil) ; Deaktiviert die lästigen #Dateien#
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(setq create-lockfiles nil)
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;; AKTIVIERE stattdessen modernes "Auto-Save" (speichert direkt in die Originaldatei)
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(auto-save-visited-mode 1)
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(setq auto-save-visited-interval 2) ; Speichert automatisch nach 2 Sekunden Inaktivität
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;; --- 2. Theme (Doom Dark Theme) ---
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(use-package doom-themes
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:config
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(load-theme 'doom-one t))
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;; --- 3. Projectile (Projektverwaltung) ---
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(use-package projectile
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:demand t
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:config (projectile-mode +1)
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:bind-keymap ("C-c p" . projectile-command-map))
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;; --- 4. Autocompletion (Corfu & Eglot für clangd) ---
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(use-package corfu
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:custom
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(corfu-cycle t)
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(corfu-auto t)
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:init
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(global-corfu-mode))
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(use-package eglot
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:hook ((c-mode . eglot-ensure)
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(c++-mode . eglot-ensure)
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(c-ts-mode . eglot-ensure)
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(c++-ts-mode . eglot-ensure))
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:config
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;; Clangd-spezifische Parameter für C/C++
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(add-to-list 'eglot-server-programs
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'(c-mode . ("clangd" "-j=8" "--background-index" "--clang-tidy")))
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(add-to-list 'eglot-server-programs
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'(c-ts-mode . ("clangd" "-j=8" "--background-index" "--clang-tidy"))))
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;; Modernes Hover-Popup (wie in Eclipse/VS Code) für Dokumentation und Signaturen
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(use-package eldoc-box
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:hook (eglot-managed-mode . eldoc-box-hover-at-point-mode))
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;; --- 5. CMake Syntax Highlighting ---
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(use-package cmake-mode
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:mode ("CMakeLists\\.txt\\'" "\\.cmake\\'"))
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;; --- 5. Suche & Ripgrep (Vertico, Orderless & Consult) ---
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(use-package vertico
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:init (vertico-mode))
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(use-package orderless
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:custom
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(completion-styles '(orderless basic)))
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(use-package consult
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:bind (("C-s" . consult-line)
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("C-r" . consult-ripgrep)))
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;; --- 6. Compilation Window Tweaks ---
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;; Öffne das Compile-Fenster immer unten (nicht rechts) und mache es 30% hoch
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(add-to-list 'display-buffer-alist
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'("\\*compilation\\*"
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(display-buffer-reuse-window display-buffer-at-bottom)
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(window-height . 0.3)))
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;; Aktiviere ANSI-Farben im Compile-Fenster (für CMake-Farben)
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(require 'ansi-color)
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(add-hook 'compilation-filter-hook 'ansi-color-compilation-filter)
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;; Automatisch nach unten scrollen, um Fehler oder die finale Dateigröße sofort zu sehen
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(setq compilation-scroll-output t)
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;; --- 7. Modernes Syntax-Highlighting (Tree-Sitter) ---
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(use-package treesit-auto
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:custom
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(treesit-auto-install t) ; Lade fehlende Grammatiken vollautomatisch herunter
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:config
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(treesit-auto-add-to-auto-mode-alist 'all)
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(global-treesit-auto-mode)
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;; Workaround für c-ts-mode: Benötigt intern ZWINGEND auch die cpp-Grammatik!
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;; Wir prüfen beim Start, ob C, C++ oder CMake fehlen und installieren sie stumm nach.
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(setq treesit-language-source-alist
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'((c "https://github.com/tree-sitter/tree-sitter-c")
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(cpp "https://github.com/tree-sitter/tree-sitter-cpp")
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(cmake "https://github.com/uyha/tree-sitter-cmake")))
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(dolist (lang '(c cpp cmake))
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(unless (treesit-language-available-p lang)
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(treesit-install-language-grammar lang))))
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;; --- 8. AVR Build & Flash Shortcuts ---
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(defun my-avr-clean-build ()
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"Baut das aktuelle CMake-Projekt komplett neu ohne Rückfrage."
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(interactive)
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(let ((default-directory (projectile-project-root)))
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(compile "cmake --fresh -B build && cmake --build build")))
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(defun my-avr-flash-code ()
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"Flasht nur den Programmcode (Flash)."
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(interactive)
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(let ((default-directory (projectile-project-root)))
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(compile "cmake --build build --target flash")))
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(defun my-avr-flash-eeprom ()
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"Flasht Programmcode und EEPROM."
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(interactive)
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(let ((default-directory (projectile-project-root)))
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(compile "cmake --build build --target flash_eeprom")))
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(defun my-avr-read-fuses ()
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"Liest die Fuses via Avrdude aus."
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(interactive)
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(let ((default-directory (projectile-project-root)))
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(compile "cmake --build build --target read_fuses")))
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(defun my-avr-flash-fuses ()
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"Programmiert die Fuses aus der ELF-Datei."
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(interactive)
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(let ((default-directory (projectile-project-root)))
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(compile "cmake --build build --target flash_fuses")))
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;; Tastenbelegungen (F-Tasten)
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(global-set-key (kbd "<f5>") 'my-avr-clean-build)
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(global-set-key (kbd "<f6>") 'my-avr-flash-code)
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(global-set-key (kbd "<C-f6>") 'my-avr-flash-eeprom)
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(global-set-key (kbd "<f7>") 'my-avr-read-fuses)
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(global-set-key (kbd "<C-f7>") 'my-avr-flash-fuses)
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