Incremental rebuilds are slow

[liangchunn]

Description

Compared to the project typescript-node-scripts running with webpack and fork-ts-checker-webpack-plugin, twirler with rollup and rollup-plugin-typescript2 rebuilds bundles very slow, sometimes up to 700% slower.

I suspect that this is due to the typechecker losing all information and has the check the whole project (?)

typescript-node-scripts start vs twirler start rebuilding on zero changes on a 89k sloc project:

Acceptance Criteria

• Find out if using check:false decreases the amount of time to recompile
• Find out if there are already existing solutions

Resources

ezolenko/rollup-plugin-typescript2#113