Add clang-tidy checks for project naming conventions

Author: mgojlo

.clang-tidy

@@ -16,6 +16,7 @@ Checks: >
 
 
 FormatStyle: 'file'
+# WarningsAsErrors: 'readability-identifier-naming'
 CheckOptions:
 # allow for
 # if (condition)
@@ -30,3 +31,38 @@ CheckOptions:
     value:           'i'
   - key:             google-runtime-int.TypeSuffix
     value:           ''
+# Naming/casing conventions
+  - key:             readability-identifier-naming.MacroDefinitionCase
+    value:           UPPER_CASE
+  - key:             readability-identifier-naming.TypedefSuffix
+    value:           _t
+# I haven't found a way to enforce enum members containing a prefix of the
+# enum name without a custom clang-tidy plugin
+  - key:             readability-identifier-naming.EnumCase
+    value:           UPPER_CASE
+  - key:             readability-identifier-naming.EnumConstantCase
+    value:           UPPER_CASE
+  - key:             readability-identifier-naming.GlobalVariablePrefix
+    value:           g_
+  - key:             readability-identifier-naming.VariableCase
+    value:           lower_case
+  - key:             readability-identifier-naming.GlobalVariableCase
+    value:           lower_case
+#  - key:             readability-identifier-naming.ConstantCase
+#    value:           UPPER_CASE
+  - key:             readability-identifier-naming.FunctionCase
+    value:           lower_case
+  - key:             readability-identifier-naming.TypedefCase
+    value:           lower_case
+  - key:             readability-identifier-naming.StructCase
+    value:           lower_case
+  - key:             readability-identifier-naming.UnionCase
+    value:           lower_case
+  - key:             readability-identifier-naming.EnumCase
+    value:           lower_case
+  - key:             readability-identifier-naming.EnumConstantCase
+    value:           UPPER_CASE
+  - key:             readability-identifier-naming.MacroDefinitionCase
+    value:           UPPER_CASE
+  - key:             readability-identifier-naming.FileCase
+    value:           lower_case