Fails with node 18

[mattlewis92]

Hey there!

When upgrading our application to node 18 it started throwing this error:

/node_modules/.pnpm/moment-timezone@0.5.32/node_modules/moment-timezone/index.js:2:15-51 - Error: Module not found: Error: error:0308010C:digit
al envelope routines::unsupported

After some digging I believe the problem is in this plugin as it uses md4:

https://github.com/gilmoreorless/moment-timezone-data-webpack-plugin/blob/main/src/helpers.js#L149

Just trying to run this in node 18 throws the error:

console.log(require('crypto').createHash("md4"));

Happy to send a PR with the fix!

2 options I can see:

1. change the md4 => md5, downsides to this is it will invalidate the cache when updating as the hash will change
2. conditionally change the hashing algorithm depending on the node version. More code but won't invalidate the cache on update

Let me know what you'd prefer!

[gilmoreorless]

Thanks for the PR. To answer your question about using md4, I only did that to be consistent with what webpack was using at the time. It looks like they also got hit by this error: webpack/webpack#14532

I'm happy to change the algorithm. The cache can often get invalidated with node_modules changes anyway, so I don't see this as a breaking change.

[gilmoreorless]

Your fix has been released in v1.5.1. 😄

[mattlewis92]

Thank you!! 🙌