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setup-ruby.sh
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setup-ruby.sh
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#!/usr/bin/env bash
# this will install or update RVM using
# literally the steps from rvm.io
ensure_brew() {
if [[ -z "$(command -v brew)" ]]; then
echo "Homebrew not found, can't install required dependencies."
exit 2
fi
true
}
if [[ -z "$(command -v curl)" ]]; then
echo "cURL not found. Are you even using a computer?"
echo "Let's try to install it with Homebrew but Homebrew relies on cURL already…"
ensure_brew && brew install curl
fi
if [[ -z "$(command -v gpg)" ]]; then
echo "GPG not found, installing it…"
ensure_brew && brew install gpg
if [[ -z "$(command -v gpg)" ]]; then
echo "GPG not available, cannot install RVM without being able to validate it."
exit 1
fi
fi
if ! gpg --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB; then
curl -sSL https://rvm.io/mpapis.asc | gpg --import -
curl -sSL https://rvm.io/pkuczynski.asc | gpg --import -
fi
curl -sSL https://get.rvm.io | bash -s stable
# shellcheck source=/dev/null
. ~/.bash_profile
# if we're not already using an rvm ruby, install the same version as what the
# system is using and use it. This makes this script a little future-proof.
if ! grep -E -q -o 'rvm' <(command -v ruby); then
system_version=$(/usr/bin/ruby --version | grep -E -o '[[:digit:]]\.[[:digit:]]\.[[:digit:]]')
rvm install "${system_version}" "--with-openssl-dir=$(brew --prefix openssl)"
fi