pre-install.sh

#!/bin/bash
#
# Checks and validations to be done before install command
#
# How to use
# $ chmod +x ./pre-install.sh
# $ ./pre-install.sh (-r|--registry) (-n|--npm-namespace)
#
# $ ./pre-install.sh --registry=https://registry.yarnpkg.com
# $ ./pre-install.sh --registry=https://registry.yarnpkg.com --npm-namespace=<my-namespace>
#

PACKAGE_REGISTRY=""
NPM_PACKAGE_NAMESPACE=""

for i in "$@"
do
  case $i in
      -r=*|--registry=*)
      PACKAGE_REGISTRY="${i#*=}"
      shift # past argument=value
      ;;
      -n=*|--npm-namespace=*)
      NPM_PACKAGE_NAMESPACE="${i#*=}"
      shift # past argument=value
      ;;
      --default)
      shift # past argument with no value
      ;;
      *)
        # unknown option
      ;;
  esac
done

if [ "$PACKAGE_REGISTRY" == "" ]; then
  echo "Please pass a NPM registry for the pre install command";
  echo "./pre-install.sh (-r|--registry) (-n|--npm-namespace)";
  echo "";
  echo "EX:";
  echo "./pre-install.sh --registry=https://registry.yarnpkg.com";
  echo "./pre-install.sh --registry=https://registry.yarnpkg.com --npm-namespace=<my-namespace>";
  echo "";
  exit 1;
fi

# Check if NPM mirror and NPMRC are configured as expected for private requirements
# Also, it has a safeguard check for CI to avoid running yarn config check for registry in CI by accident
# since there's no need for that check on Bitbucket pipelines
if [[ "$NPM_PACKAGE_NAMESPACE" != "" && "$(cat ~/.npmrc | grep ${NPM_PACKAGE_NAMESPACE})" == "" ]] || [[ "$CI" != "true" && "$(yarn config get registry)" != *"$PACKAGE_REGISTRY"* ]]; then
  echo "Atlassian private NPM Registry is not configured properly. For more details, please check https://hello.atlassian.net/wiki/spaces/RELENG/pages/137968733/HOWTO+-+Use+Atlassian+private+npm+registry";
  exit 1;
fi