Install Nokogiri with Homebrew

install_nokogiri_with_homebrew

#! /bin/sh
set -e

BREW_PREFIX="$(brew --prefix)"
BREW_CELLAR="${BREW_PREFIX}/Cellar"

function libxslt_version()
{
  brew list --versions libxslt | awk '{ print $2 }'
}

function libxml2_version()
{
  brew list --versions libxml2 | awk '{ print $2 }'
}

if [[ (($(libxml2_version) > "2.9.0")) ]]; then
  echo "libxml2-2.9.0 and higher are currently known to be broken
  and thus unsupported by nokogiri, due to compatibility problems and
  XPath optimization bugs."
  echo "Try running the following:"
  echo "  brew uninstall --force libxml2"
  echo "  brew install https://raw.githubusercontent.com/Homebrew/homebrew/763d94665ca439653a27ea03da87af96ba66f5b4/Library/Formula/libxml2.rb"
  exit -1
fi

function install_nokogiri_gem()
{
  printf "Installing nokogiri gem"
  if [ "$#" -ne 0 ]; then
    printf " with options: '$*'"
  fi
  echo

  gem install nokogiri $* -- \
    --with-xml2-include=${BREW_CELLAR}/libxml2/"$(libxml2_version)"/include/libxml2 \
    --with-xml2-lib=${BREW_CELLAR}/libxml2/"$(libxml2_version)"/lib \
    --with-xslt-dir=${BREW_CELLAR}/libxslt/"$(libxslt_version)"
}

if [[ -n "$(libxslt_version)" && -n "$(libxml2_version)" ]]; then
  install_nokogiri_gem "$@"
else
  echo "Installing nokogiri dependencies"
  brew install https://raw.githubusercontent.com/Homebrew/homebrew/763d94665ca439653a27ea03da87af96ba66f5b4/Library/Formula/libxml2.rb && \
    brew install libxslt && \
    install_nokogiri_gem "$@"
fi

instructions.md

    curl -o install_nokogiri.sh https://gist.githubusercontent.com/faun/e4ee6158586a3e28e6d4/raw/165c17205b321a4f92060571da45d82f2106da0e/install_nokogiri_with_homebrew
    chmod u+x install_nokogiri.sh
    ./install_nokogiri.sh
    # Install a specific version of nokogiri with:
    # ./install_nokogiri.sh -v '1.6.6.2'

This script has been deprecated. Nokogiri now comes with vendored versions of libxml2 and libxslt.