Bake in support for rustfmt

_reformat-common.bash

@@ -147,6 +147,8 @@ function sniff_file_type() {
         file_type="dart"
     elif [[ $ff = *.pl ]]; then
         file_type="perl"
+    elif [[ $ff = *.rs ]] ; then
+        file_type="rust"
     fi
 
     echo $file_type
@@ -191,6 +193,8 @@ function choose_wrapper() {
         out="$WF_ROOT"/./isort-and-black.sh
     elif [[ $file_type == "golang" ]]; then
         out="$WF_ROOT"/./gofmt.sh
+    elif [[ $file_type == "rust" ]] ; then
+        out="$WF_ROOT"/./rustfmt.sh
     elif [[ $file_type == "dart" ]]; then
         out="$WF_ROOT"/./dart_format.sh
     else