build_ruby.sh

INSTALL_PREFIX=/opt/rubies/${Version}

if [ -d ruby-build ] ; then
  ( cd ruby-build && git pull && PREFIX=${WORKSPACE} ./install.sh)
else
  git clone git://github.com/sstephenson/ruby-build.git
  cd ruby-build
  PREFIX=${WORKSPACE} ./install.sh
fi

# cleanup previous builds
rm -rf /opt/rubies/${Version}

### # set up vendor location
### mkdir -p /opt/rubies/${Version}/vendor/include
### mkdir -p /opt/rubies/${Version}/vendor/lib
### 
### # install readline
### curl -O http://ftp.gnu.org/gnu/readline/readline-6.2.tar.gz
### tar -zxvf readline-6.2.tar.gz
### ( cd readline-6.2
###   export CFLAGS="-L/opt/rubies/${Version}/vendor/lib -I/opt/rubies/${Version}/vendor/include"
###   export LDFLAGS="-Wl,-rpath /opt/rubies/${Version}/vendor/lib -L/opt/rubies/${Version}/vendor/lib -I/opt/rubies/${Version}/vendor/include"
###   ./configure --prefix=/opt/rubies/${Version}/vendor/
###   make
###   make install
### )

# install iconv if ruby 1.8
CONFIGURE_ICONV=""
if echo -n "${Version}" | grep -q "1.8" ; then
###   curl -O http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.14.tar.gz
###   tar -zxvf libiconv-1.14.tar.gz
###   ( cd libiconv-1.14
###     export CFLAGS="-L/opt/rubies/${Version}/vendor/lib -I/opt/rubies/${Version}/vendor/include"
###     export LDFLAGS="-Wl,-rpath /opt/rubies/${Version}/vendor/lib -L/opt/rubies/${Version}/vendor/lib -I/opt/rubies/${Version}/vendor/include"
###     ./configure --enable-extra-encodings --enable-static --without-libintl-prefix --prefix=/opt/rubies/${Version}/vendor/
###     make
###     make install
###   )
  CONFIGURE_ICONV="--with-iconv-dir=/usr/local"
fi

# build ruby
cd ${WORKSPACE}
CONFIGURE_OPTS="--enable-shared ${CONFIGURE_ICONV} --with-readline-dir=/usr/local" ./bin/ruby-build ${Version} ${INSTALL_PREFIX}

# install gems
for g in ${Gems} ; do
  ( cd $INSTALL_PREFIX && ./bin/gem install ${g} )
done

# package ruby install
(
  cd /
  tar -czvf /dist/pub/rubies/builds/ruby-${Version}-${BUILD_ID}.tar.gz /opt/rubies/${Version}
  cd /dist/pub/rubies/
  ln -sf builds/ruby-${Version}-${BUILD_ID}.tar.gz ruby-${Version}.tar.gz
)