Add linter

tools/lint.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+# Tool for checking for clang-format compliance
+# Heavily inspired by: https://github.com/dolphin-emu/dolphin/blob/master/Tools/lint.sh
+
+COMMIT=${1:---cached}
+FILES=$(git diff --name-only --diff-filter=ACMRTUXB $COMMIT)
+
+EXIT_CODE=0
+
+for f in ${FILES}; do
+	# Ignore anything that isn't a source file
+	if ! echo "$f" | egrep -q "^src.*\.(cpp|h)$"; then
+		continue
+	fi
+	# Check if clang-format and the original differ
+	if ! clang-format "$f" | diff - "$f"; then
+		echo "$f violates the coding style, fix listed above"
+		EXIT_CODE=1
+	fi
+done
+
+exit $EXIT_CODE