rollup-plugin-istanbul

Rollup plugin for seamless integration with Istanbul code coverage instrumentation. Current stable version is 5.0.0, released with support for Rollup v4 and Node.js 16+. It instruments source files before bundling, ensuring test code is not covered. Key differentiators: works as a Rollup plugin, supports source maps, configurable instrumenter options, and minimal setup. Published under MIT license, maintained by artberri. Released at a moderate cadence with 5 major versions.