How to tell the version number of the Rust crate I'm in?

Question

Is there a robust way, maybe something in cargo CLI, to get the version of the crate?

I can grep on Cargo.toml, but I'm looking for something that won't break in 6 months.

Is there a better way?

Answer 1

The simplest answer is

cargo pkgid

This outputs

files:///Users/sus/code/project#0.1.0

If you want this as just the version part, you can pipe this to cut (or handle it yourself in your programming language of choice)

cargo pkgid | cut -d "#" -f2