From 3b2f0a4cb4fc95daeb083dafd32be98cab1b784b Mon Sep 17 00:00:00 2001
From: Love Billenius <lovebillenius@disroot.org>
Date: Thu, 30 Jan 2025 21:19:37 +0100
Subject: [PATCH] Fix root finding.

The problem was projectile
---
 .emacs | 70 ++++++++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 54 insertions(+), 16 deletions(-)

diff --git a/.emacs b/.emacs
index 51c5a6f..90a7f0a 100644
--- a/.emacs
+++ b/.emacs
@@ -185,15 +185,15 @@
   (evil-mode 1)
 
   ;; Force modes to start in Emacs state
-  (dolist (mode '(;;Buffer-menu-mode
-                  ;;ibuffer-mode
-                  dired-mode
-                  help-mode
-                  bookmark-bmenu-mode
-                  gnus-summary-mode
-                  gnus-group-mode
-                  package-menu-mode))
-    (evil-set-initial-state mode 'emacs))
+  ;;(dolist (mode '(;;Buffer-menu-mode
+                  ;;;;ibuffer-mode
+                  ;;dired-mode
+                  ;;help-mode
+                  ;;bookmark-bmenu-mode
+                  ;;gnus-summary-mode
+                  ;;gnus-group-mode
+                  ;;package-menu-mode))
+    ;;(evil-set-initial-state mode 'emacs))
 
   ;; Correct keybindings for minibuffer maps using actual keymap objects
   (dolist (keymap '(minibuffer-local-map
@@ -247,12 +247,14 @@
   (setq company-minimum-prefix-length 1
         company-idle-delay 0.0)) ;; Show completions immediately
 
-;; Install and configure Projectile
+
 (use-package projectile
   :init
-  (projectile-mode +1)
-  :bind (:map projectile-mode-map
-              ("s-p" . projectile-command-map)))
+  (projectile-mode)
+  :config
+  (setq projectile-project-root-files '(".git" ".lsp-root"))
+  ;;(setq projectile-project-root-files-bottom-up '(".git" ".clangd"))
+  (projectile-mode +1))
 
 ;; Install and bind Magit
 (use-package magit
@@ -278,9 +280,35 @@
          (rust-mode . lsp))
   :commands lsp
   :config
-  (setq lsp-prefer-flymake nil) ;; Use lsp-ui and flycheck instead of flymake
-  (setq lsp-enable-snippet t) ;; Disable snippet support if not needed
-  (setq lsp-headerline-breadcrumb-enable nil)) ;; Disable breadcrumb for performance
+  (setq lsp-prefer-flymake nil)
+  (setq lsp-enable-snippet t)
+  (setq lsp-headerline-breadcrumb-enable nil)
+
+  ;; Enhanced project root detection with debug logging
+  (defun my/lsp-get-project-root ()
+    "Find the project root by locating the nearest .git directory with validation."
+    (let* ((current-file (or (buffer-file-name) default-directory))
+           (root-dir (locate-dominating-file current-file ".git"))
+           (valid-root (when root-dir 
+                         (expand-file-name root-dir))))
+      (when valid-root
+        (message "[LSP] Detected project root: %s" valid-root)
+        valid-root)))
+
+  ;; Set project root detection for C/C++ before LSP initializes
+  (add-hook 'c-mode-hook (lambda () 
+                           (setq-local lsp-project-root-function #'my/lsp-get-project-root)
+                           (message "[LSP] C mode root: %s" (my/lsp-get-project-root))))
+  
+  (add-hook 'c++-mode-hook (lambda () 
+                             (setq-local lsp-project-root-function #'my/lsp-get-project-root)
+                             (message "[LSP] C++ mode root: %s" (my/lsp-get-project-root))))
+
+  ;; Configure ignored directories for better performance
+  (setq lsp-file-watch-ignored '("[/\\\\]\\.git$"
+                                 "[/\\\\]build$"
+                                 "[/\\\\]bin$"
+                                 "[/\\\\]tests$")))
 
 (use-package lsp-ui
   :commands lsp-ui-mode
@@ -335,6 +363,16 @@
   (setq rust-format-on-save t)
   )
 
+;; ===========================
+;; C/C++ Line Length Configuration
+;; ===========================
+(defun my/c-mode-line-limit ()
+  "Set 80-character line limit for C/C++ files."
+  (setq fill-column 80)
+  (display-fill-column-indicator-mode 1)
+)
+(add-hook 'c-mode-hook #'my/c-mode-line-limit)
+
 (message "Emacs init loaded.")
 (custom-set-variables
  ;; custom-set-variables was added by Custom.