Bake in support for rustfmt

rustfmt.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+set -uo pipefail
+IFS=$'\n\t'
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+source "$DIR/_reformat-common.bash"
+
+log "in rustfmt.sh"
+
+set -e
+
+file="$1"
+
+log what
+
+pushd "$(dirname "$file")" 2>&1
+
+if [[ "$WOULD_REFORMAT" = "would_reformat" ]]; then
+
+log beavis
+
+    set +e
+    out=$(rustfmt --check "$file" 2>&1 >/dev/null)
+    retval="$?"
+    set -e
+
+log got back retval $retval
+
+    exit "$retval"
+fi
+
+if [[ "$WOULD_REFORMAT" = "do_reformat" ]]; then
+
+log in do reformat mode
+
+    out=$(rustfmt "$file" 2>&1 >/dev/null)
+    retval="$?"
+
+    echo "$out"
+
+log $out
+
+    exit "$retval"
+fi
+
+log are we here now
+
+exit 255