Include Benchmark Client version information in the result JSON

This part of the JSON schema isn't required yet. When missing, the version
is assumed to be -∞

benchmark/space/__init__.py

@@ -223,6 +223,16 @@ def modify_device_info(device_info):
     return device_info
 
 
+def benchmark_client_info() -> dict:
+    """Metadata about the Benchmark Client itself."""
+
+    from ..version import version
+
+    return {
+        'client_version': version,
+    }
+
+
 def benchmark_thread(ctx):
     with G.progress_lock:
         G.progress_status = "Collecting system information."
@@ -252,7 +262,8 @@ def benchmark_thread(ctx):
         "blender_version": system_info.getBlenderVersion(ctx),
         "system_info": modify_system_info(blender_system_info),
         "device_info": modify_device_info(blender_device_info),
-        "scenes": all_stats if all_stats else {}
+        "scenes": all_stats if all_stats else {},
+        "benchmark_client": benchmark_client_info(),
     })
 
     with G.progress_lock:

benchmark/submission/client.py

@@ -11,6 +11,11 @@ from . import timeouts, exceptions, sockutil
 
 log = logging.getLogger(__name__)
 
+# At this moment the Benchmark Client and the Benchmark Farm (farm.py)
+# output different JSON schemas.
+# TODO(Sybren): unify the JSON schemas and also update parse_results.py for this.
+BENCHMARK_SCHEMA_VERSION = 1
+
 
 class SubmissionResult:
     """Metadata of the submitted benchmark.
@@ -160,7 +165,7 @@ class BenchmarkClient:
 
         payload = {
             'data': benchmark_data,
-            'schema_version': 0,
+            'schema_version': BENCHMARK_SCHEMA_VERSION,
         }
         log.info('Submitting benchmark to %s:\n%s', self.url_submit,
                  json.dumps(payload, sort_keys=True, indent=4))