Add run-shellcheck helper

run-shellcheck.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+SHELLCHECKCMD="shellcheck -s sh -f gcc -x"
+# Skip SC2154 for variables starting with __ since such variables are cdist
+# environment variables.
+SHELLCHECK_SKIP=': __.*is referenced but not assigned.*\[SC2154\]'
+SHELLCHECKTMP=".shellcheck.tmp"
+
+check () {
+	find type/ -type f $1 $2 -exec ${SHELLCHECKCMD} {} + | grep -v "${SHELLCHECK_SKIP}"  > "${SHELLCHECKTMP}"
+	test ! -s "${SHELLCHECKTMP}" || { cat "${SHELLCHECKTMP}"; exit 1; }
+}
+
+check -path "*/explorer/*"
+check -path "*/files/*"
+check -name manifest
+check -name gencode-local
+check -name gencode-remote