|  | @@ -35,10 +35,12 @@ source ~/.nvm/nvm.sh
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				|  |  |  nvm install $NODE_VERSION
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				|  |  |  set -ex
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				|  |  |  
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				|  |  | +# Update npm to at least version 5
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				|  |  | +npm update -g npm
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				|  |  | +
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				|  |  |  export GRPC_CONFIG=${CONFIG:-opt}
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				|  |  |  
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				|  |  | -# Expire cache after 1 day
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				|  |  | -npm update --cache-min 86400
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				|  |  | +npm update --prefer-online
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				|  |  |  
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				|  |  |  npm install node-gyp-install
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				|  |  |  ./node_modules/.bin/node-gyp-install
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