Support uploading host_name info in the tool event logger

host_name info is useful in several use cases including
1) to distinguish the concurrent tool invocations from the same user.
2) to understand the potential different performance from different hosts (e.g. local workstation VS cloudtop).
3) required to integrate the tool event log with the EPR system.

Test: atest tool_event_logger_test
Bug: 348482213

Change-Id: I98422b3f8ccec73d57fcdcdedac91780c448dc47

tools/tool_event_logger/tool_event_logger.py

@@ -38,6 +38,7 @@ class ToolEventLogger:
       tool_tag: str,
       invocation_id: str,
       user_name: str,
+      host_name: str,
       source_root: str,
       platform_version: str,
       python_version: str,
@@ -46,6 +47,7 @@ class ToolEventLogger:
     self.tool_tag = tool_tag
     self.invocation_id = invocation_id
     self.user_name = user_name
+    self.host_name = host_name
     self.source_root = source_root
     self.platform_version = platform_version
     self.python_version = python_version
@@ -57,6 +59,7 @@ class ToolEventLogger:
         tool_tag=tool_tag,
         invocation_id=str(uuid.uuid4()),
         user_name=getpass.getuser(),
+        host_name=platform.node(),
         source_root=os.environ.get('ANDROID_BUILD_TOP', ''),
         platform_version=platform.platform(),
         python_version=platform.python_version(),
@@ -110,6 +113,7 @@ class ToolEventLogger:
         tool_tag=self.tool_tag,
         invocation_id=self.invocation_id,
         user_name=self.user_name,
+        host_name=self.host_name,
         source_root=self.source_root,
     )