check-node-modules.sh

#!/bin/bash
set -eu

# Sanity check that repo is clean to start with
if [ ! -z "$(git status --porcelain)" ]; then
    # If we get a fail here then this workflow needs attention...
    >&2 echo "Failed: Repo should be clean before testing!"
    exit 1
fi
# Pin npm to v8 since v9 doesn't support Node 12.
# When updating this, make sure to update the npm version in
# `.github/workflows/update-dependencies.yml` too.
sudo npm install --force -g npm@^8.19.3
# Reinstall modules and then clean to remove absolute paths
# Use 'npm ci' instead of 'npm install' as this is intended to be reproducible
npm ci
npm run removeNPMAbsolutePaths
# Check that repo is still clean
if [ ! -z "$(git status --porcelain)" ]; then
    # If we get a fail here then the PR needs attention
    >&2 echo "Failed: node_modules are not up to date. Add the 'Update dependencies' label to your PR to update them. Note it is important that node modules are updated on macOS and not any other operating system as there is one dependency (fsevents) that is needed for macOS and may not be installed if dependencies are updated on a Windows or Linux machine."
    git status
    exit 1
fi
echo "Success: node_modules are up to date"