#!/bin/bash

# This script generates a version of tls.go that can be built with Go compilers
# prior to version 1.4.

source "${VEYRON_ROOT}/scripts/lib/shell.sh"

main() {
  local -r DIR="$(dirname "$0")"
  local -r INFILE="${DIR}/tls.go"
  local OUTFILE="${DIR}/tls_old.go"
  [[ "$#" -gt 0 ]] && OUTFILE="$1"
  readonly OUTFILE

  cat <<EOF >$OUTFILE
// THIS IS NOT THE FILE YOU WANT.
// DO NOT EDIT THIS FILE.
//
// This file has been generated using the tls_generate_old.sh script.
// Please do NOT make edits to this file. Instead edit tls.go and
// use the script to regenerate this file

EOF
  cat "${INFILE}" |
    sed -e 's|// +build go1.4|// +build !go1.4|' |
    sed -e 's|"crypto/tls"|tls "veyron.io/veyron/veyron/runtimes/google/ipc/stream/crypto/tlsfork"|' >>$OUTFILE

  veyron go fmt "${OUTFILE}"
}

main "$@"