🎉 Initial commit

pyproject.toml

@@ -0,0 +1,34 @@
+[build-system]
+requires = ["setuptools>=69"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "opcda-diagnozer"
+version = "0.1.0"
+description = "Read-only OPC DA reference client that diagnoses disconnections, latency and data-quality problems between SCADA and control systems"
+readme = "README.md"
+requires-python = ">=3.10"
+dependencies = [
+    # ruamel.yaml is pure Python: PyYAML publishes no win32 (32-bit) wheels for
+    # CPython 3.14 and its sdist build requires MSVC, which diag hosts lack
+    # (the interpreter itself must be 32-bit — SPECIFICATION §11 bitness rule).
+    "ruamel.yaml>=0.18",
+    # OPC DA is Windows/COM-only; every pywin32 import in the code is guarded
+    # so tests can run on any OS (IMPLEMENTATION_PLAN §9).
+    "pywin32>=306; sys_platform == 'win32'",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=8.0",
+]
+
+[project.scripts]
+opcda-diagnozer = "opcda_diagnozer.main:main"
+
+[tool.setuptools.packages.find]
+where = ["src"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+addopts = "-ra"