implement package installation based on prestartup_script

prestartup_script.py

@@ -0,0 +1,37 @@
+import os
+import subprocess
+
+script_list_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), "startup-scripts", "install-scripts.txt")
+
+# Check if script_list_path exists
+if os.path.exists(script_list_path):
+    print("\n#######################################################################")
+    print("[ComfyUI-Manager] Starting dependency installation for the extension\n")
+
+    executed = set()
+    # Read each line from the file and convert it to a list using eval
+    with open(script_list_path, 'r') as file:
+        for line in file:
+            if line in executed:
+                continue
+
+            executed.add(line)
+
+            try:
+                script = eval(line)
+                print(f"\n## Install dependency for '{script[0]}'")
+                code = subprocess.run(script[1:], cwd=script[0])
+
+                if code.returncode != 0:
+                    print(f"install script failed: {script[0]}")
+            except Exception as e:
+                print(f"[ERROR] Failed to install: {line} / {e}")
+
+
+    # Remove the script_list_path file
+    if os.path.exists(script_list_path):
+        os.remove(script_list_path)
+        
+    print("\n[ComfyUI-Manager] Dependency installation completed.")
+    print("#######################################################################\n")
+