cleanup

.clang-format

@@ -0,0 +1,24 @@
+---
+# We'll use defaults from the LLVM style, but with 4 columns indentation.
+BasedOnStyle: LLVM
+IndentWidth: 4
+---
+Language: Cpp
+# Force pointers to the type for C++.
+DerivePointerAlignment: false
+PointerAlignment: Middle
+AlignTrailingComments: true
+BreakBeforeBraces: Custom
+BraceWrapping:
+    BeforeElse: true
+AllowShortBlocksOnASingleLine: false
+AllowShortFunctionsOnASingleLine: InlineOnly
+---
+Language: JavaScript
+# Use 100 columns for JS.
+ColumnLimit: 100
+---
+Language: Proto
+# Don't format .proto files.
+DisableFormat: true
+...