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/gen_ts_dep_lists.py

@@ -0,0 +1,86 @@
+#!/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 argparse
+import os
+import sys
+
+from dir_paths import gn_webgpu_cts_dir, webgpu_cts_root_dir
+from tsc_ignore_errors import run_tsc_ignore_errors
+
+src_prefix = webgpu_cts_root_dir.replace('\\', '/') + '/'
+
+
+def get_ts_sources():
+    # This will output all the source files in the form:
+    # "/absolute/path/to/file.ts"
+    # The path is always Unix-style.
+    # It will also output many Typescript errors since the build doesn't download the .d.ts
+    # dependencies.
+    stdout = run_tsc_ignore_errors([
+        '--project',
+        os.path.join(webgpu_cts_root_dir, 'tsconfig.json'), '--listFiles',
+        '--declaration', 'false', '--sourceMap', 'false'
+    ])
+
+    lines = [l.decode() for l in stdout.splitlines()]
+    return [
+        line[len(src_prefix):] for line in lines
+        if line.startswith(src_prefix + 'src/')
+    ]
+
+
+def get_resource_files():
+    files = os.listdir(os.path.join(webgpu_cts_root_dir, 'src', 'resources'))
+    files.sort()
+    return files
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--check',
+                        action='store_true',
+                        help='Check that the output file is up to date.')
+    parser.add_argument('--stamp', help='Stamp file to write after success.')
+    args = parser.parse_args()
+
+    ts_sources = [x + '\n' for x in get_ts_sources()]
+    ts_sources_txt = os.path.join(gn_webgpu_cts_dir, 'ts_sources.txt')
+
+    resource_files = [x + '\n' for x in get_resource_files()]
+    resource_files_txt = os.path.join(gn_webgpu_cts_dir, 'resource_files.txt')
+
+    if args.check:
+        with open(ts_sources_txt, 'r') as f:
+            txt = f.readlines()
+            if (txt != ts_sources):
+                raise RuntimeError(
+                    '%s is out of date. Please re-run //third_party/dawn/third_party/webgpu-cts/scripts/gen_ts_dep_lists.py\n'
+                    % ts_sources_txt)
+        with open(resource_files_txt, 'r') as f:
+            if (f.readlines() != resource_files):
+                raise RuntimeError(
+                    '%s is out of date. Please re-run //third_party/dawn/third_party/webgpu-cts/scripts/gen_ts_dep_lists.py\n'
+                    % resource_files_txt)
+    else:
+        with open(ts_sources_txt, 'w') as f:
+            f.writelines(ts_sources)
+        with open(resource_files_txt, 'w') as f:
+            f.writelines(resource_files)
+
+    if args.stamp:
+        with open(args.stamp, 'w') as f:
+            f.write('')