package.json autodetection fails if not used as a direct dependency

[jwheare]

As noted in: sindresorhus/electron-store#1 (comment)

Perhaps this can just be mentioned in the README as a caveat, but if no projectName or cwd is provided, conf tries to detect the package.json of the parent package.

However, this uses the module.parent mechanism, which returns the nearest direct dependent, rather than the top level package.

conf/index.js

Line 13 in c5a736b

const parentDir = path.dirname(module.parent.filename);

This can cause issues if a module is using conf via an intermediary.

[sindresorhus]

The problem is that we can't really know which module in the tree is the correct one. It might be the direct parent, it might be top level, or somewhere in between. I think auto-detecting the direct one and falling back to an option is a good compromise, but happy to consider other solutions. And yes, should be documented better regardless.