add build support script to print out the submodule versions required…

… in other submodules

build-support/functions/10-util.sh

@@ -667,3 +667,20 @@ function go_mod_assert {
    fi
    return 0
 }
+
+function get_consul_module_versions {
+  local module_directories
+  module_directories=( "." "api" "envoyextensions" "proto-public" "sdk" "troubleshoot")
+  for module_dir in "${module_directories[@]}"; do
+    echo "Module versions for directory: '$module_dir':"
+    echo "--------------"
+    (cd "$module_dir" && go list -m all | grep -e github.com/hashicorp/consul/api \
+    -e github.com/hashicorp/consul/envoyextensions \
+    -e github.com/hashicorp/consul/proto-public \
+    -e github.com/hashicorp/consul/sdk \
+    -e github.com/hashicorp/consul/troubleshoot)
+    echo "--------------"
+    echo ""
+  done
+  return 0
+}

build-support/scripts/consul-module-versions-in-consul.sh

@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: BUSL-1.1
+
+
+readonly SCRIPT_NAME="$(basename ${BASH_SOURCE[0]})"
+readonly SCRIPT_DIR="$(dirname "${BASH_SOURCE[0]}")"
+readonly SOURCE_DIR="$(dirname "$(dirname "${SCRIPT_DIR}")")"
+readonly FN_DIR="$(dirname "${SCRIPT_DIR}")/functions"
+
+source "${SCRIPT_DIR}/functions.sh"
+
+function usage {
+cat <<-EOF
+Usage: ${SCRIPT_NAME}  [<options ...>]
+
+Description:
+
+   This script is just a convenience around discover what the Consul
+   version would be if you were to build it. 
+
+Options:                       
+   -s | --source     DIR         Path to source to build.
+                                 Defaults to "${SOURCE_DIR}"
+                                 
+   -r | --release                Include the release in the version
+   
+   -g | --git                    Take git variables into account
+   
+   -h | --help                   Print this help text.
+EOF
+}
+
+function err_usage {
+   err "$1"
+   err ""
+   err "$(usage)"
+}
+
+function main {
+   while test $# -gt 0
+   do
+      case "$1" in
+         -h | --help )
+            usage
+            return 0
+            ;;
+         *)
+            err_usage "ERROR: Unknown argument: '$1'"
+            return 1
+            ;;
+      esac
+   done
+
+   get_consul_module_versions || return 1
+
+   return 0
+}
+
+main "$@"
+exit $?
+