update-rust.sh

#!/bin/bash

PACKAGE_URL="http://static.rust-lang.org/dist/rust-nightly-x86_64-unknown-linux-gnu.tar.gz"
INSTALL_TO="$HOME/.bin/rust"

die() {
  echo -e "\e[1m\e[31merror: \e[0;1m$*\e[0m" 1>&2
  exit 1
}

cd /tmp

mkdir update-rust.$$ || die "failed to create directory in /tmp"
cd    update-rust.$$

echo "Updating rust..."
echo "  (temp dir at `pwd`)"
echo

curl -#o rust.tar.gz "$PACKAGE_URL" || die "curl failed"

tar xf rust.tar.gz || die "extraction failed"

cd rust-* || die "rust not found"

rm -r "$HOME/.bin/rust" || die "failed to remove old version"

./install.sh --prefix="$INSTALL_TO" || die "failed to install"

cd ../..

rm -r update-rust.$$ || die "failed to clean up"