The compilerOptions.outDir config is incorrectly resolved when in a shareable config · Issue #29172 · microsoft/TypeScript (original) (raw)

TypeScript Version: 3.3.0-dev.20181222

Search Terms: outDir, output directory, outDir extends

Expected behavior:

TypeScript 3.2 got support for configuration inheritance via node_modules packages. I have created a package with a shareable config. In this shareable config, I have defined the outDir option: https://github.com/sindresorhus/tsconfig/blob/50b0ba611480ed45b97a59b910f5bb5e8cbc25ef/tsconfig.json#L2-L3 as I always use the same outDir and don't want to have to specify it in each project.

I expected the outDir path to be resolved against the project root, even when it's defined in an extended config.

Actual behavior:

It turns out the outDir relative path is actually resolved against the shareable config path instead of the project's root (tsconfig.json) path. So when I have a project foo, and compile TypeScript, the output ends up in foo/@sindresorhus/tsconfig/dist instead of foo/dist.

You can reproduce it by cloning https://github.com/sindresorhus/ow/tree/8ae048c4931dfd51b496cefb40b24c78d3722be6, then removing this line https://github.com/sindresorhus/ow/blob/8ae048c4931dfd51b496cefb40b24c78d3722be6/tsconfig.json#L4 (which is a workaround to the problem), and then run $ npm test. The compiled TS code will end up in node_modules/@sindresorhus/tsconfig/dist instead of dist.