Stop writing CLI validation. Parse it right the first time.
I have this bad habit. When something annoys me enough times,
I end up building a library for it. This time, it was CLI validation code.
See, I spend a lot of time reading other people's code. Open source projects,
work stuff, random GitHub repos I stumble upon at 2 AM. And I kept noticing this
thing: every CLI tool has the same ugly validation code tucked away somewhere.
You know the kind:
if (!opts.server && opts.port) {
throw new Error("--port requires --server flag");
}
if (opts.server && !o...
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