#!/bin/sh

die () { echo "$@" ; exit 1; }

. ../../../nvm.sh

nvm use 0.10.28

EXPECTED_PACKAGES="autoprefixer bower david eslint grunt-cli grunth-cli http-server jshint marked node-gyp npmlist recursive-blame uglify-js yo"

echo "$EXPECTED_PACKAGES" | xargs npm install -g --quiet

get_packages() {
  npm list -g --depth=0 | \sed -e '1 d' -e 's/^.* \(.*\)@.*/\1/' -e '/^npm$/ d' | xargs
}

nvm use 0.10.29
ORIGINAL_PACKAGES=$(get_packages)

nvm reinstall-packages 0.10.28
FINAL_PACKAGES=$(get_packages)

[ "$FINAL_PACKAGES" = "$EXPECTED_PACKAGES" ] || die "final packages ($FINAL_PACKAGES) did not match expected packages ($EXPECTED_PACKAGES)"
[ "$ORIGINAL_PACKAGES" != "$FINAL_PACKAGES" ] || die "original packages matched final packages ($ORIGINAL_PACKAGES)"