Canonical definitions of home_dir, cargo_home, and rustup_home.
This provides the definition of home_dir used by Cargo and rustup, as well functions to find the correct value of CARGO_HOME and RUSTUP_HOME.
The definition of home_dir provided by the standard library is incorrect because it considers the HOME environment variable on Windows. This causes surprising situations where a Rust program will behave differently depending on whether it is run under a Unix emulation environment like Cygwin or MinGW. Neither Cargo nor rustup use the standard library's definition - they use the definition here.
This crate further provides two functions, cargo_home and rustup_home, which are the canonical way to determine the location that Cargo and rustup store their data.
See rust-lang/rust#43321.
This crate is maintained by the Cargo team, primarily for use by Cargo and Rustup and not intended for external use. This crate may make major changes to its APIs or be deprecated without warning.
MIT OR Apache-2.0