[RFE] support --no-build in spago run as well #1303
Description
spago bundle-app has a handy option that skips a bulid: --no-build. It would be great if this option was supported in spago run as well.
Usecase: when running purescript-written backend on a machine with which sources were shared via NFS, spago's attempt to rebuild sources slows down start up time considerably. I found via bpftrace that it's possible to "run" manually by executing node .spago/run.js.
Measuring running time for the code with its main replaced to main = pure unit shows:
| Case | Command | Time |
|---|---|---|
| Uncached | spago run |
50.266 sec |
| Cached | spago run |
2.397 sec |
| Uncached | node .spago/run.js |
11.393 sec |
| Cached | node .spago/run.js |
0.434 sec |
That's up to ≈78% improvement.