Allow cli option to run specific audits

[pedro93]

The title says practically everything. I don't think it is as of right now possible to tell lighthouse to run specific audits, is this something in the roadmap or not even considered?

My use case is to use pwmetrics to have a simple and easy to obtain performance metrics.

Having the option to select which ones I want, would further help me personalize the output to my situation. It is possible to filter out the results from pwmetrics and lighthouse but having an option directly at the source would be simpler :)

Thoughts?

[cheshrkat]

+1, although would also like better UI for re-running a single audit in the extension too :)

[wardpeet]

you have the --perf option which runs the following audits

• First meaningful paint
• speed index
• Estimated input latency
• Time to interactive
• user timings
• screenshots
• Critical request chains
• Unused css rules
• Uses optimized images
• Uses responsive images
• Dom size
• link blocking first paint
• script blockign first paint
  see perf.json

If that doens't fit your needs, you can create your own config.json and run it with --config=<path to config>

[paulirish]

In the short term, creating a custom config.json is a great solution.

In the medium term (next month or so) we plan to allow easy whitelisting of audits to run. In this case we'll want to optionally support culling the aggregations so a report can be created.

[brendankenny]

custom config with safe and block lists have been added. More info here: https://github.com/GoogleChrome/lighthouse/blob/master/docs/configuration.md#example-1