Add CTS telemetry harness support

Migrates harness support files added in
https://chromium-review.googlesource.com/c/chromium/src/+/3541414
into Dawn's repo.

Tested in
https://chromium-review.googlesource.com/c/chromium/src/+/3537743

Bug: chromium:1306640
Change-Id: I3000b1223219a1da293af910bf442570b70b7c92
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/84043
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Austin Eng <enga@chromium.org>

webgpu-cts/scripts/compile_src.py

@@ -0,0 +1,101 @@
+#!/usr/bin/env python
+#
+# Copyright 2022 The Dawn Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import shutil
+import sys
+
+from dir_paths import webgpu_cts_root_dir, node_dir
+from tsc_ignore_errors import run_tsc_ignore_errors
+
+try:
+    old_sys_path = sys.path
+    sys.path = [node_dir] + sys.path
+
+    from node import RunNode
+finally:
+    sys.path = old_sys_path
+
+
+def compile_src(out_dir):
+    # First, clean the output directory so deleted files are pruned from old builds.
+    shutil.rmtree(out_dir)
+
+    run_tsc_ignore_errors([
+        '--project',
+        os.path.join(webgpu_cts_root_dir, 'tsconfig.json'),
+        '--outDir',
+        out_dir,
+        '--noEmit',
+        'false',
+        '--noEmitOnError',
+        'false',
+        '--declaration',
+        'false',
+        '--sourceMap',
+        'false',
+        '--target',
+        'ES2017',
+    ])
+
+
+def compile_src_for_node(out_dir, additional_args=None, clean=True):
+    additional_args = additional_args or []
+    if clean:
+        # First, clean the output directory so deleted files are pruned from old builds.
+        shutil.rmtree(out_dir)
+
+    args = [
+        '--project',
+        os.path.join(webgpu_cts_root_dir, 'node.tsconfig.json'),
+        '--outDir',
+        out_dir,
+        '--noEmit',
+        'false',
+        '--noEmitOnError',
+        'false',
+        '--declaration',
+        'false',
+        '--sourceMap',
+        'false',
+        '--target',
+        'ES6',
+    ]
+    args.extend(additional_args)
+
+    run_tsc_ignore_errors(args)
+
+
+if __name__ == '__main__':
+    if len(sys.argv) != 2:
+        print('Usage: compile_src.py GEN_DIR')
+        sys.exit(1)
+
+    gen_dir = sys.argv[1]
+
+    # Compile the CTS src.
+    compile_src(os.path.join(gen_dir, 'src'))
+    compile_src_for_node(os.path.join(gen_dir, 'src-node'))
+
+    # Run gen_listings.js to overwrite the dummy src/webgpu/listings.js created
+    # from transpiling src/
+    RunNode([
+        os.path.join(gen_dir, 'src-node', 'common', 'tools',
+                     'gen_listings.js'),
+        '--no-validate',
+        os.path.join(gen_dir, 'src'),
+        os.path.join(gen_dir, 'src-node', 'webgpu'),
+    ])