install.rust

#!/bin/zsh

# NOTE: This script is normally source'd from `install`, but it can also be
# source'd from the command-line.

# Get some commands: is_being_sourced, source_rust_env

source "${DOTFILES}/zshenv"
source "${DOTFILES}/bin/shell_functions.zsh"

if is_being_sourced
then
    if is_executable rustup
    then
        echo
        echo "### Updating rust"
        echo

        rustup update
    else
        echo
        echo "### Installing rust"
        echo

        # This method of installation -- where parameters are passed to the
        # script -- is demonstrated in:
        #
        #   https://github.com/rust-lang/rustup/doc/user-guide/src/installation/other.md

        curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --no-modify-path -y -q

        # Set $PATH so that we can call `rustup`.

        source_rust_env

        # Some tools to consider (check out crates.io):
        #
        #   cargo-watch # Watches for changed source files and re-run tests

        rustup component add \
            rust-analyzer \
            llvm-tools \
            rust-src
    fi
else
    echo "*** install.rust should be source'd in order for \$PATH changes to take effect"
fi

true