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784e9b8 Sep 24, 2018
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@mislav @mliebelt @bittenApple
executable file 122 lines (107 sloc) 3.21 KB
#!/bin/bash
set -e
homebrew=
type -p brew >/dev/null && homebrew=1
try_bash_extension() {
if [ -x src/configure ]; then
src/configure && make -C src || {
echo "Optional bash extension failed to build, but things will still work normally."
}
fi
}
if ! type -p git >/dev/null; then
git() {
echo "Error: git is required to proceed. Please install git and try again." >&2
exit 1
}
fi
http() {
local url="$1"
if type -p curl >/dev/null; then
curl -fsSL "$url"
elif type -p wget >/dev/null; then
wget -q "$url" -O-
else
echo "Error: couldn't download file. No \`curl' or \`wget' found." >&2
return 1
fi
}
rbenv="$(command -v rbenv ~/.rbenv/bin/rbenv | head -1)"
if [ -n "$rbenv" ]; then
echo "rbenv already seems installed in \`$rbenv'."
cd "${rbenv%/*}"
if [ -x ./brew ]; then
echo "Trying to update with Homebrew..."
brew update >/dev/null
if [ "$(./rbenv --version)" < "1.0.0" ] && brew list rbenv | grep -q rbenv/HEAD; then
brew uninstall rbenv
brew install rbenv --without-ruby-build
else
brew upgrade rbenv
fi
elif git remote -v 2>/dev/null | grep -q rbenv; then
echo "Trying to update with git..."
git pull --tags origin master
cd ..
try_bash_extension
fi
else
if [ -n "$homebrew" ]; then
echo "Installing rbenv with Homebrew..."
brew update
brew install rbenv --without-ruby-build
rbenv="$(brew --prefix)/bin/rbenv"
else
echo "Installing rbenv with git..."
mkdir -p ~/.rbenv
cd ~/.rbenv
git init
git remote add -f -t master origin https://github.com/rbenv/rbenv.git
git checkout -b master origin/master
try_bash_extension
rbenv=~/.rbenv/bin/rbenv
if [ ! -e versions ] && [ -w /opt/rubies ]; then
ln -s /opt/rubies versions
fi
fi
fi
rbenv_root="$("$rbenv" root)"
ruby_build="$(command -v "$rbenv_root"/plugins/*/bin/rbenv-install rbenv-install | head -1)"
echo
if [ -n "$ruby_build" ]; then
echo "\`rbenv install' command already available in \`$ruby_build'."
cd "${ruby_build%/*}"
if [ -x ./brew ]; then
echo "Trying to update with Homebrew..."
brew update >/dev/null
brew upgrade ruby-build
elif git remote -v 2>/dev/null | grep -q ruby-build; then
echo "Trying to update with git..."
git pull origin master
fi
else
if [ -n "$homebrew" ]; then
echo "Installing ruby-build with Homebrew..."
brew update
brew install ruby-build
else
echo "Installing ruby-build with git..."
mkdir -p "${rbenv_root}/plugins"
git clone https://github.com/rbenv/ruby-build.git "${rbenv_root}/plugins/ruby-build"
fi
fi
# Enable caching of rbenv-install downloads
mkdir -p "${rbenv_root}/cache"
echo
echo "Running doctor script to verify installation..."
http https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-doctor | "$BASH"
echo
echo "All done!"
echo "Note that this installer doesn't yet configure your shell startup files:"
i=0
if [ -x ~/.rbenv/bin ]; then
echo "$((++i)). You'll want to ensure that \`~/.rbenv/bin' is added to PATH."
fi
echo "$((++i)). Run \`rbenv init' to see instructions how to configure rbenv for your shell."
echo "$((++i)). Launch a new terminal window to verify that the configuration is correct."
echo