Implement and check the behavior to calculate parents from exclusively-relative paths (`.`, `..`)

Question

Implement and check the behavior to calculate parents from exclusively-relative paths (`.`, `..`)

Closed this issue 3 months ago · 1 comments

Currently, new LocalPath(".").Parent (the same for paths like .. or ../..) is not defined: I'm not sure what it should be.

We need to see how other libraries define this path's parent (I lean towards null) and implement the same logic.

Answer 1 · 2024-09-22T16:46:29.000Z

After some work and discussion done in scope of #83, my current decision is that generally, (path1 / path2).Parent should yield the same result (if any) as path1 / path2.Parent.

Meaning new LocalPath(".").Parent should be .., and e.g. new LocalPath("../..").Parent should be ../../...

IIRC there's still a weird corner case in how we handle /.. absolute path (it could break the invariant); I am planning to handle that separately.