cue installer/runner

cue

#!/usr/bin/env bash
set -euo pipefail

CUE_VERSION=${CUE_VERSION:-"0.0.14"}
export PATH="./bin:$PATH"

function extract() {
  set -x

if ! [[ -f bin/"cue-${CUE_VERSION}" ]] ; then
  mkdir -p download
  pushd download
  # avoid re-downloading for now if there is a mistake here in shell code
  if ! test -f cue_${CUE_VERSION}_${1}.tar.gz ; then
    wget "https://github.com/cuelang/cue/releases/download/v${CUE_VERSION}/cue_${CUE_VERSION}_${1}.tar.gz"
  fi

  gunzip cue_${CUE_VERSION}_${1}.tar.gz
  tar -xvf cue_${CUE_VERSION}_${1}.tar
  mkdir -p ../bin
  mv cue ../bin/cue-${CUE_VERSION}
  popd
  rm -r download
fi
  pushd bin
  rm -f cue
  ln -s "cue-${CUE_VERSION}" cue
  popd

  set +x
}

{
if ! command -v cue >/dev/null || ! [[ $(cue version | awk '{print $3}') == $CUE_VERSION ]] >/dev/null ; then
        if [[ $(uname) == Linux ]] ; then
                extract Linux_x86_64
        else
                extract Darwin_x86_64
        fi
fi

# install libraries
libs=( k8s.io/api/core/v1 k8s.io/api/apps/v1 k8s.io/api/batch/v1 )
for lib in ${libs[@]} ; do
  if ! test -f pkg/$lib/types_go_gen.cue ; then
        echo "downloading $lib to ./pkg" >&2
        GO111MODULE=on ./bin/cue get go  "$lib"
  fi
done
} >/dev/null

exec ./bin/cue "$@"