fix(build): support pyproject version

bench/utils/app.py

@@ -4,6 +4,7 @@
 import re
 import sys
 import subprocess
+import importlib.metadata
 from typing import List
 from functools import lru_cache
 
@@ -270,12 +271,22 @@ def check_existing_dir(bench_path, repo_name):
 def get_current_version(app, bench_path="."):
 	current_version = None
 	repo_dir = get_repo_dir(app, bench_path=bench_path)
+	pyproject_path = os.path.join(repo_dir, "pyproject.toml")
 	config_path = os.path.join(repo_dir, "setup.cfg")
 	init_path = os.path.join(repo_dir, os.path.basename(repo_dir), "__init__.py")
 	setup_path = os.path.join(repo_dir, "setup.py")
 
 	try:
-		if os.path.exists(config_path):
+		if os.path.exists(pyproject_path):
+			try:
+				from tomli import load
+			except ImportError:
+				from tomllib import load
+
+			with open(pyproject_path, "rb") as f:
+				current_version = load(f).get("project", {}).get("version")
+
+		if not current_version and os.path.exists(config_path):
 			from setuptools.config import read_configuration
 
 			config = read_configuration(config_path)