add launch scripts

.shii/lab4/run.py

@@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+"""
+Lab4 Application Setup & Launch Script
+Handles venv, dependencies, and database initialization
+"""
+
+import os
+import sys
+import subprocess
+import shutil
+from pathlib import Path
+
+def main():
+    # Get the directory where this script is located
+    script_dir = Path(__file__).resolve().parent
+    os.chdir(script_dir)
+
+    print("🔧 Lab4 Application Setup & Launch")
+    print("=" * 50)
+
+    venv_path = script_dir / "venv"
+    requirements_file = script_dir / "requirements.txt"
+    instance_dir = script_dir / "instance"
+    db_file = instance_dir / "accounting.db"
+
+    # Check and create venv if not exists
+    if not venv_path.exists():
+        print("📦 Virtual environment not found. Creating venv...")
+        subprocess.run([sys.executable, "-m", "venv", str(venv_path)], check=True)
+        print("✅ venv created")
+    else:
+        print("✅ venv already exists")
+
+    # Determine the Python executable in venv
+    python_exe = venv_path / "bin" / "python"
+    pip_exe = venv_path / "bin" / "pip"
+
+    if not python_exe.exists():
+        print("❌ Failed to locate Python in venv")
+        sys.exit(1)
+
+    # Install/upgrade requirements
+    if requirements_file.exists():
+        print("📥 Installing dependencies from requirements.txt...")
+        subprocess.run([str(pip_exe), "install", "-q", "--upgrade", "pip"], check=True)
+        subprocess.run([str(pip_exe), "install", "-q", "-r", str(requirements_file)], check=True)
+        print("✅ Dependencies installed")
+    else:
+        print("❌ requirements.txt not found!")
+        sys.exit(1)
+
+    # Create instance directory if not exists
+    if not instance_dir.exists():
+        print("📁 Creating instance directory...")
+        instance_dir.mkdir(parents=True, exist_ok=True)
+
+    # Remove old database to create fresh one
+    if db_file.exists():
+        print("🗑️  Removing old database...")
+        db_file.unlink()
+
+    print()
+    print("=" * 50)
+    print("🚀 Starting Flask Application...")
+    print("=" * 50)
+    print()
+
+    # Run the Flask app
+    subprocess.run([str(python_exe), "app.py"])
+
+if __name__ == "__main__":
+    main()
+