10X slowdown depending on current working directory

[louwers]

time npx tsup ~/src/typebox/src/index.ts --dts-only --dts --tsconfig ~/src/typebox/tsconfig.json --format esm
CLI Building entry: ../../typebox/src/index.ts
CLI Using tsconfig: ../../typebox/tsconfig.json
CLI tsup v8.3.5
DTS Build start
DTS ⚡️ Build success in 1718ms
DTS dist/index.d.ts 146.95 KB
npx tsup ~/src/typebox/src/index.ts --dts-only --dts --tsconfig  --format esm  29.78s user 48.55s system 233% cpu 33.482 total

Now cd ~/src/typebox...

% time npx tsup src/index.ts --dts-only --dts --tsconfig tsconfig.json --format esm
CLI Building entry: src/index.ts
CLI Using tsconfig: tsconfig.json
CLI tsup v8.3.5
DTS Build start
DTS ⚡️ Build success in 1418ms
DTS dist/index.d.mts 146.95 KB
npx tsup src/index.ts --dts-only --dts --tsconfig tsconfig.json --format esm  4.22s user 0.17s system 235% cpu 1.869 total

So the working directory has a significant impact on performance...

The actual build time is the same, but somehow it takes a long time to start.