Start extracting language-specific formatters

prettier.sh

@@ -0,0 +1,28 @@
+#!/bin/bash 
+
+set -uo pipefail
+IFS=$'\n\t'
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+source "$DIR/_reformat-common.bash"
+
+file="$1"
+
+wrflog running against file $file
+
+out=$(npx prettier --check $file 2>&1 >/dev/null)
+
+if [[ x"$WOULD_REFORMAT" = x"would_reformat" ]] ; then
+    out=$(npx prettier --check $file 2>&1 >/dev/null)
+    retval="$?"
+    exit "$retval"
+fi
+
+if [[ x"$WOULD_REFORMAT" = x"do_reformat" ]] ; then # 
+    out=$(npx prettier --write $file 2>&1 >/dev/null)
+    retval="$?"
+    exit "$retval"
+fi
+
+exit 255