Add __main__.py for CLI options to get libtensor include dirs from module

dpnp/__main__.py

@@ -0,0 +1,78 @@
+# *****************************************************************************
+# Copyright (c) 2016, Intel Corporation
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+# - Redistributions of source code must retain the above copyright notice,
+#   this list of conditions and the following disclaimer.
+# - Redistributions in binary form must reproduce the above copyright notice,
+#   this list of conditions and the following disclaimer in the documentation
+#   and/or other materials provided with the distribution.
+# - Neither the name of the copyright holder nor the names of its contributors
+#   may be used to endorse or promote products derived from this software
+#   without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+# THE POSSIBILITY OF SUCH DAMAGE.
+# *****************************************************************************
+
+import argparse
+import importlib
+import os
+import os.path
+import sys
+
+
+def _dpnp_dir() -> str:
+    dpnp_dir = importlib.util.find_spec("dpnp").submodule_search_locations[0]
+    abs_dpnp_dir = os.path.abspath(dpnp_dir)
+    return abs_dpnp_dir
+
+
+def get_tensor_include_dir() -> str:
+    """Prints path to dpnp libtensor include directory"""
+    dpnp_dir = _dpnp_dir()
+    libtensor_dir = os.path.join(dpnp_dir, "tensor", "libtensor", "include")
+    return libtensor_dir
+
+
+def print_tensor_include_flags() -> None:
+    """Prints include flags for dpnp tensor library"""
+    libtensor_dir = get_tensor_include_dir()
+    print("-I " + libtensor_dir)
+
+
+def main() -> None:
+    """Main entry-point."""
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--tensor-includes",
+        action="store_true",
+        help="Include flags for dpnp libtensor headers.",
+    )
+    parser.add_argument(
+        "--tensor-include-dir",
+        action="store_true",
+        help="Path to dpnp libtensor include directory.",
+    )
+    args = parser.parse_args()
+    if not sys.argv[1:]:
+        parser.print_help()
+    if args.tensor_includes:
+        print_tensor_include_flags()
+    if args.tensor_include_dir:
+        print(get_tensor_include_dir())
+
+
+if __name__ == "__main__":
+    main()