[Windows] Improve import self-check with tests for GPU-related DLLs.

This change incorporates the full logic of the [Windows self-check
script](https://gist.github.com/mrry/ee5dbcfdd045fa48a27d56664411d41c)
into core TensorFlow.

Fixes #9170.

PiperOrigin-RevId: 170746452

1 files changed, 26 insertions, 4 deletions

diff --git a/tensorflow/tools/build_info/gen_build_info.py b/tensorflow/tools/build_info/gen_build_info.py
index f59cdb0e1e..690214abfb 100755
--- a/tensorflow/tools/build_info/gen_build_info.py
+++ b/tensorflow/tools/build_info/gen_build_info.py
@@ -20,12 +20,19 @@ from __future__ import print_function
 import argparse
 
 
-def write_build_info(filename, build_config):
+def write_build_info(filename, build_config, key_value_list):
   """Writes a Python that describes the build.
 
   Args:
     filename: filename to write to.
-    build_config: A string containinggit_version: the result of a git describe.
+    build_config: A string that represents the config used in this build (e.g.
+      "cuda").
+    key_value_list: A list of "key=value" strings that will be added to the
+      module as additional fields.
+
+  Raises:
+    ValueError: If `key_value_list` includes the key "is_cuda_build", which
+      would clash with one of the default fields.
   """
   module_docstring = "\"\"\"Generates a Python module containing information "
   module_docstring += "about the build.\"\"\""
@@ -34,6 +41,16 @@ def write_build_info(filename, build_config):
   else:
     build_config_bool = "False"
 
+  key_value_pair_stmts = []
+  if key_value_list:
+    for arg in key_value_list:
+      key, value = arg.split("=")
+      if key == "is_cuda_build":
+        raise ValueError("The key \"is_cuda_build\" cannot be passed as one of "
+                         "the --key_value arguments.")
+      key_value_pair_stmts.append("%s = %r" % (key, value))
+  key_value_pair_content = "\n".join(key_value_pair_stmts)
+
   contents = """
 # Copyright 2017 The TensorFlow Authors. All Rights Reserved.
 #
@@ -55,7 +72,9 @@ from __future__ import division
 from __future__ import print_function
 
 is_cuda_build = %s
-""" % (module_docstring, build_config_bool)
+
+%s
+""" % (module_docstring, build_config_bool, key_value_pair_content)
   open(filename, "w").write(contents)
 
 
@@ -69,9 +88,12 @@ parser.add_argument(
 
 parser.add_argument("--raw_generate", type=str, help="Generate build_info.py")
 
+parser.add_argument("--key_value", type=str, nargs="*",
+                    help="List of key=value pairs.")
+
 args = parser.parse_args()
 
 if args.raw_generate is not None and args.build_config is not None:
-  write_build_info(args.raw_generate, args.build_config)
+  write_build_info(args.raw_generate, args.build_config, args.key_value)
 else:
   raise RuntimeError("--raw_generate and --build_config must be used")