Set up testing and wheels for Windows on GitHub Actions (#8131)

* Move some Java tests into ci.sh

* Move C++ worker tests into ci.sh

* Define run()

* Prepare to move Python tests into ci.sh

* Fix issues in install-dependencies.sh

* Reload environment for GitHub Actions

* Move wheels to ci.sh and fix related issues

* Don't bypass failures in install-ray.sh anymore

* Make CI a little quieter

* Move linting into ci.sh

* Add vitals test right after build

* Fix os.uname() unavailability on Windows

Co-authored-by: Mehrdad <noreply@github.com>

python/ray/dashboard/dashboard.py

@@ -13,6 +13,7 @@ import json
 import logging
 import os
 import re
+import socket
 import threading
 import time
 import traceback
@@ -1224,7 +1225,7 @@ if __name__ == "__main__":
             args.redis_address, password=args.redis_password)
         traceback_str = ray.utils.format_error_message(traceback.format_exc())
         message = ("The dashboard on node {} failed with the following "
-                   "error:\n{}".format(os.uname()[1], traceback_str))
+                   "error:\n{}".format(socket.gethostname(), traceback_str))
         ray.utils.push_error_to_driver_through_redis(
             redis_client, ray_constants.DASHBOARD_DIED_ERROR, message)
         if isinstance(e, OSError) and e.errno == errno.ENOENT:

python/ray/log_monitor.py

@@ -5,6 +5,7 @@ import json
 import logging
 import os
 import shutil
+import socket
 import time
 import traceback
 
@@ -301,7 +302,7 @@ if __name__ == "__main__":
             args.redis_address, password=args.redis_password)
         traceback_str = ray.utils.format_error_message(traceback.format_exc())
         message = ("The log monitor on node {} failed with the following "
-                   "error:\n{}".format(os.uname()[1], traceback_str))
+                   "error:\n{}".format(socket.gethostname(), traceback_str))
         ray.utils.push_error_to_driver_through_redis(
             redis_client, ray_constants.LOG_MONITOR_DIED_ERROR, message)
         raise e

python/ray/reporter.py

@@ -252,7 +252,7 @@ if __name__ == "__main__":
             args.redis_address, password=args.redis_password)
         traceback_str = ray.utils.format_error_message(traceback.format_exc())
         message = ("The reporter on node {} failed with the following "
-                   "error:\n{}".format(os.uname()[1], traceback_str))
+                   "error:\n{}".format(socket.gethostname(), traceback_str))
         ray.utils.push_error_to_driver_through_redis(
             redis_client, ray_constants.REPORTER_DIED_ERROR, message)
         raise e

python/setup.py

@@ -159,12 +159,15 @@ class build_ext(_build_ext.build_ext):
         source = filename
         destination = os.path.join(self.build_lib, filename)
         # Create the target directory if it doesn't already exist.
-        parent_directory = os.path.dirname(destination)
-        if not os.path.exists(parent_directory):
-            os.makedirs(parent_directory)
+        os.makedirs(os.path.dirname(destination), exist_ok=True)
         if not os.path.exists(destination):
             print("Copying {} to {}.".format(source, destination))
-            shutil.copy(source, destination, follow_symlinks=True)
+            if sys.platform == "win32":
+                # Does not preserve file mode (needed to avoid read-only bit)
+                shutil.copyfile(source, destination, follow_symlinks=True)
+            else:
+                # Preserves file mode (needed to copy executable bit)
+                shutil.copy(source, destination, follow_symlinks=True)
 
 
 class BinaryDistribution(Distribution):