Keep rustfmt and clippy up to date

install-rustfmt-nightly.sh

#!/bin/sh

BUILD_DIR=$HOME/.rust-tool-build

# update_tool tool_name tool_binary
update_tool() {
        rustup run nightly $2 --version 1>/dev/null 2>/dev/null

        if [ $? -ne 0 ]; then
                echo "Updating $1"
                mkdir -p $BUILD_DIR/.cargo
                cd $BUILD_DIR
                cat > .cargo/config <<-EOL
                [build]
                rustflags = [
                    "-C", "link-arg=-Xlinker",
                    "-C", "link-arg=-rpath=$(rustc --print sysroot)/lib",
                ]
                EOL
                rustup run nightly cargo install --force $1
        else
                echo "$1 is up to date"
        fi
}

# Update to the latest nightly
rustup update nightly

# Update rustfmt and clippy
update_tool rustfmt-nightly rustfmt
update_tool clippy clippy-driver