[Feature] Switch from tsc to swc

[barthofu]

Feature

swc is way much faster and would permit HMR.

Sources

• https://dev.to/franciscomendes10866/how-to-setup-a-node-api-with-swc-and-eslint-1h5d
• https://github.com/swc-project/swc-node

Todo

• Test the CI/CD with Github Actions

[barthofu]

Started the implementation, first results so far on the two same codebase:

Build

npm run build

tsc	swc
11.71s	6.53s
	-44.23%

• These results where calculated using the time unix command (e.g: time npm run build)
• The swc build includes a tsc type-check with no emit, which is taking the most important part of the total time. The transpilation itself is almost instantaneous! The swc team is currently working on a type checker written in Go, waiting for it to come over (open sourced we hope 🙏)

Dev

npm run dev

ts-node	swc-node
10.67s	5.02s
	-52.95%

• Results calculated by hand (yes, not the best solution ik). Chrono was started when entering the command, and stopped when the console stated the bot as online
• The dev command uses swc-node, an alternative to the ts-node/register/transpile-only node loader