Adding tool to reformat

do_formattting.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+# Script to check whether a repo has been properly formatted with clang-format.
+
+# The find `-regex` arg on Linux and Darwin works differently. Normally
+# the Darwin path would not need to be invoked unless testing the script locally.
+unameOut="$(uname -s)"
+base_dir="."
+case "${unameOut}" in
+    Darwin*)    files=$(find -E $base_dir -regex '.*\.(cpp|hpp|cc|cxx|h|c)');;
+    Linux*)     files=$(find $base_dir -regex '.*\.\(cpp\|hpp\|cc\|cxx\|h\|c\)')
+esac
+
+for file in $files; do
+    if [[ $file =~ "drivers/minizip" ]]; then
+        # Skip minizip because clang-format breaks this code to the point where it doesn't
+        # compile.
+        echo "Skipping autoformat check for file: $file"
+    else
+        ORIG=$(cat "$file")
+        # The `--style=file` argument will automatically find the .clang-format and
+        # it doesn't take a file path but just the string `file`.
+        # If .clang-format is missing the script will exit.
+        AUTO=$(clang-format --style=file --fallback-style=none "$file")
+        diff <(echo "$ORIG") <(echo "$AUTO") > /dev/null || { echo "$file is not formatted, Applying format";clang-format -i $file; }
+    fi
+done
+
+echo "Format check complete"