覆盖 Rust 安装默认路径 `$HOME/.cargo` 和 `$HOME/.rustup`

Question

In Rust, by default, files are placed in $HOME/.cargo and $HOME/.rustup . Is there any way to override these defaults?

I am trying to debug an obscure issue and I want to try changing the file locations.

Answer 1

This is explained in the documentation :

rustup allows you to customise your installation by setting the environment variables CARGO_HOME and RUSTUP_HOME before running the rustup-init executable. As mentioned in the Environment Variables section, RUSTUP_HOME sets the root rustup folder, which is used for storing installed toolchains and configuration options. CARGO_HOME contains cache files used by cargo.

Don't forget to update the $PATH or you won't be able to use the binaries. Also, if you want that setup to be permanent, export those variables from your shell configuration ( eg .bashrc or .zshrc ):

Note that you will need to ensure these environment variables are always set and that CARGO_HOME/bin is in the $PATH environment variable when using the toolchain.

Answer 2

Before installing Rust, set the environment variables CARGO_HOME and RUSTUP_HOME , and make sure they're set when using the toolchain.

If you're using Bash, then one way to do that is to:

1. Add these two lines to ~/.bashrc :

    export CARGO_HOME=/path/to/your/custom/location export RUSTUP_HOME=/path/to/your/custom/location

2. Restart your shell or source ~/.bashrc by running:

    . ~/.bashrc