Get current node version from .gitlab-ci.yml

direnv-gitlab-node.sh

use_mynode() {
  local file=${1:-.gitlab-ci.yml}
  local node_version

  watch_file "$file"

  # NODE_VERSION: 18.2.0-alpine
  node_version=$(sed -n '/NODE_VERSION:/s/NODE_VERSION:[[:space:]]*\([^-]*\)\(-.*\)\?/\1/p' $file)

  if [ -z "$node_version" ]; then
    # NODE_IMAGE: ${CI_DEPENDENCY_PROXY_DIRECT_GROUP_IMAGE_PREFIX}/node:18.2.0-alpine
    node_version=$(sed -n '/NODE_IMAGE:/s/.*\bnode:\(.*\)-.*/\1/p' $file)
  fi

  if [[ -z ${node_version:-} ]]; then
    log_error "File $file does not contain NODE_VERSION or NODE_IMAGE!"
    return 1
  fi

  log_status "Found NodeJS $node_version in $file"

  use_node $node_version
  layout_node
}