TSLint is really slow

[benlesh]

Do we have any other alternatives to TSLint?

cc/ @alexeagle @robwormald @david-driscoll

[david-driscoll]

What part feels slow for you? I've never had large issues with perf on TSLint itself, but that's just my experience.

Does your editor have a TSLint plugin to help linting warning as you go?
(without knowing the setup it's hard to say!)

[alexeagle]

There is discussion going on about a replacement that's based on TS language services (tslint can't do cross-file program analysis at present because it can't boot up a typechecker)
Do you have a link on your CI or somewhere showing the timing?

[trxcllnt]

@alexeagle our current travis config runs npm install && npm run lint together, so we don't have the linter timing isolated. Together they took ~125s in the most recent build.

[kwonoj]

linking palantir/tslint#1131 for reference.

[kwonoj]

just fyi, maybe https://github.com/eslint/typescript-eslint-parser this can shed light in further. (long, long time later since it's experimental for now..)

[prabirshrestha]

When Lint extensions land in typescript it could solve the perf problem. microsoft/TypeScript#10162

[kwonoj]

This one is not immediate concern anymore by lint-stage hooks and we can improve over once we have better way, closing.