Add caching

[ericcornelissen]

Feature Request

• packages/cli, v0.1.7
• packages/core, v0.1.25

Description

Add support for caching data about a mangle session and using that cache later. The goal is to speed up mangling by re-using computed values from an earlier run (the cache) in a new run.

Considerations

• The programmatic use of the core must support using the cache.
• The CLI must have the ability to run without the cache. If nothing else this allows usage of the CLI when the cache (either implementation or stored file) is broken.
• The CLI should have an option to destroy the cache it created.
• The CLI should have an option to customize the location of the cache it creates.

Implementation Ideas

This is currently just a list of ideas about how the caching could work.

• If the configuration (specifically Plugins and Language Plugins changed, the cache is invalid
• Cache the strings found in a file/embed and re-use them if the file/embed didn't change.
  • If a file didn't change, it's embeds didn't change
  • If a file changed, some or all of it's embeds may still be unchanged