Update .gitignore and add LaTeX formatting script

Author: fschledorn

.gitignore

@@ -20,3 +20,6 @@ title.pdf
 .vscode/
 .DS_Store
 *.dSYM
+_minted/
+*synctex.gz
+*.bak*

Makefile

@@ -69,4 +69,8 @@ zip: dir
 	@zip -r vorkurs.zip vorkurs vorkurs.pdf
 	@echo "Zip-File erstellt. Fertig zum hochladen."
 
+format: 
+	@echo "Formatieren des LaTeX-Projekts…"
+	@bash scripts/format_latex.sh
+	@echo "Fertig."
 

scripts/format_latex.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+set -e
+
+echo "=== LaTeX Auto-Formatter ==="
+
+if ! command -v latexindent &>/dev/null; then
+  echo "latexindent.pl not found. Please install TeX Live or MacTeX."
+  exit 1
+fi
+
+missing_modules=()
+for module in YAML::Tiny File::HomeDir Unicode::GCString File::Find::Rule; do
+  perl -M$module -e1 2>/dev/null || missing_modules+=($module)
+done
+
+if [ ${#missing_modules[@]} -ne 0 ]; then
+  echo "The following Perl modules are missing:"
+  for module in "${missing_modules[@]}"; do
+    echo "  - $module"
+  done
+  echo ""
+  echo "Options:"
+  echo "  [i] Install missing modules automatically (requires cpan, may need sudo)"
+  echo "  [s] Skip installation and try formatting anyway"
+  echo "  [a] Abort"
+  read -p "What do you want to do? [i/s/a]: " choice
+  case "$choice" in
+  i | I)
+    for module in "${missing_modules[@]}"; do
+      echo "Installing $module with cpan..."
+      if ! cpan -i $module; then
+        echo "Permission denied or install failed. Retrying with sudo..."
+        sudo cpan -i $module
+      fi
+    done
+    ;;
+  s | S)
+    echo "Skipping installation. Formatting may fail."
+    ;;
+  *)
+    echo "Aborted."
+    exit 1
+    ;;
+  esac
+else
+  echo "All required Perl modules are installed."
+fi
+
+echo "Formatting all .tex files..."
+find . -name "*.tex" -exec latexindent -w {} \;
+echo "Done! All LaTeX files have been formatted."
+
+echo "Cleaning up backup files..."
+find . -type f -name "*.bak*" -exec rm -v {} \;
+echo "Cleanup complete."