fixing build meta pkg flow (#13926)

* debug pulled version
* pre flags
* only meta

(cherry picked from commit c65bbe0)

Author: Borda

.github/actions/pkg-install/action.yml

@@ -28,7 +28,7 @@ runs:
   - name: Install | Uninstall package - archive
     working-directory: ./dist
     run: |
-      pip install *.tar.gz ${PKG_NAME}
+      pip install *.tar.gz ${PKG_NAME} ${{ inputs.pip-flags }}
       pip list | grep lightning
       python -c "import ${PKG_NAME} ; print(${PKG_NAME}.__version__)"
       pip uninstall -y ${PKG_NAME}

.github/workflows/ci_pkg-install.yml

@@ -139,3 +139,4 @@ jobs:
       - uses: ./.github/actions/pkg-install
         with:
           pkg-name: "lightning"
+          pip-flags: "-U --pre --find-links ../pypi/"

setup.py

@@ -89,7 +89,8 @@ def _load_py_module(name: str, location: str) -> ModuleType:
 # engineer specific practices
 if __name__ == "__main__":
     _SETUP_TOOLS = _load_py_module(name="setup_tools", location=os.path.join(".actions", "setup_tools.py"))
-    _SETUP_TOOLS.set_version_today(os.path.join(_PATH_SRC, "lightning", "__version__.py"))
+    if _PACKAGE_NAME not in _PACKAGE_MAPPING:
+        _SETUP_TOOLS.set_version_today(os.path.join(_PATH_SRC, "lightning", "__version__.py"))
     for lit_name, pkg_name in _PACKAGE_MAPPING.items():
         # fixme: if we run creation of meta pkg against stable we shall pull the source
         _SETUP_TOOLS.create_meta_package(os.path.join(_PATH_ROOT, "src"), pkg_name, lit_name)