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mhart/npm-ci.sh

Created September 28, 2019 18:26
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Simple module caching script, for CI or similar
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npm-ci.sh
#!/bin/bash -ex
# Tries to download latest cached node_modules based on package-lock.json
# If it can't, then `npm ci` and push up node_modules to cache
# Assumes S3_BUCKET env var has been set, and that `aws` credentials
# are configured (either in env, or ~/.aws/credentials)
CHECKSUM=$(sha256sum package-lock.json | awk '{print $1}')
if ! aws s3 cp s3://${S3_BUCKET}/cache/${CHECKSUM}.tgz - | tar -xz; then
npm ci
tar -cz node_modules | aws s3 cp - s3://${S3_BUCKET}/cache/${CHECKSUM}.tgz
fi
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mhart commented Sep 28, 2019

Swap out aws s3 for gsutil cp on Google Cloud or azcopy on Azure

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