Implement long-term hashing correctly

[gaearon]

@timse wrote a guide that makes sense and finally seems to propose a viable solution for long-term hashing in Webpack:

https://medium.com/webpack/predictable-long-term-caching-with-webpack-d3eee1d3fa31

I propose that we integrate it, pretty much the way it is.
Would anyone be interested in working on this?

cc @shrynx who’s working on #2310 which is somewhat related. I’m not sure if we should go with approach in #2310 or not so I’d appreciate the discussion before proceeding.

[shrynx]

@gaearon
Thanks for the link. super helpful. i can implement this in my PR too.

[shrynx]

@gaearon
updated the #2310 , using suggestions provided in the above article.

[gaearon]

We may want to wait for this: webpack/webpack#6281

[lifeiscontent]

@gaearon looks like that merged, any updates on this @shrynx ?

[Timer]

This was implemented in v2.