Fast package rebuilding inside cypress

Question

I started fixing some issue in Cypress sourcecode (https://github.com/cypress-io/cypress). But to check my changes I had to do: yarn postinstall which takes like 50 seconds.

Is there are faster way to rebuild cypress with only one package changed??? I know I could rebuild package inside 'packages\driver' but how to make that changes into whole project fast.

Answer 1

Below package\driver is package that I work on:

1. in main folder yarn install and wait until it finish
2. Change typescript version to one from main package (to get rid of problems in VSCode)
3. cd packages\driver && yarn workspace @packages/runner watch
4. Ctrl+Shift+` to open new terminal (or switch to second)
5. yarn workspace @packages/driver cypress:open
6. Now cypress Opens but to see changes we need to close cypress test window (Main window could stay open)