Add a clang-format check.

Author: davidtgoldblatt

bb_master_config/master.cfg

@@ -131,6 +131,19 @@ configurations = [
 ALL_BUILDER_NAMES = []
 
 c['builders'] = []
+# A clang-format check.
+clang_format_factory = util.BuildFactory()
+clang_format_factory.addStep(
+    Git(repourl=util.Interpolate("%(prop:repository)s"), mode='full'))
+clang_format_factory.addStep(ShellCommand(command=["scripts/check-formatting.sh"]))
+
+c['builders'].append(
+    util.BuilderConfig(
+        name="clang-format",
+        workernames=["ubuntu-worker"],
+        factory=clang_format_factory))
+ALL_BUILDER_NAMES.append("clang-format")
+
 for configuration in configurations:
     # ARM doesn't support profiling.
     if "--enable-prof" not in configuration: