#!/bin/sh
set -x

WORKSPACE="${1:-/usr/local}"
cd $WORKSPACE
WORKSPACE=$(pwd)

echo "workspace: ${WORKSPACE}"

RUBY_TARGET=186

MOD_RUBY_URL=https://github.com/shugo/mod_ruby
MOD_RUBY_COMMIT_HASH=0456c7cd09a13cad566a37b87b2a6e8fc4c7098a
MOD_RUBY_LOCATION=/usr/lib64/apache2/modules
MOD_RUBY_SUFFIX=${RUBY_TARGET}
MOD_RUBY_BRANCH=build-ruby-${RUBY_TARGET}

# patches
ATTACHMENT_URL=http://dev.ywesee.com/uploads/att

# additional patches for bulding for ruby 1.8.6
MOD_RUBY_REQUEST_PATCH=${ATTACHMENT_URL}/mod_ruby-ruby186-request.c.patch.txt

cd $WORKSPACE/src

if [ ! -d "mod_ruby" ]; then
  git clone ${MOD_RUBY_URL}.git
fi

if [ ! -f "mod_ruby-ruby186-request.c.patch" ]; then
  curl -sL $MOD_RUBY_REQUEST_PATCH -o mod_ruby-ruby186-request.c.patch
fi

cd mod_ruby

BUILD_BLANCH=`git show-ref refs/heads/${MOD_RUBY_BRANCH}`
if [ -n "${BUILD_BLANCH}" ]; then
  git branch -D ${MOD_RUBY_BRANCH}
fi

git checkout master
git clean -df
git checkout -- .
git checkout $MOD_RUBY_COMMIT_HASH -b ${MOD_RUBY_BRANCH}

patch -p1 <../mod_ruby-ruby186-request.c.patch

${WORKSPACE}/bin/ruby${RUBY_TARGET} ./configure.rb \
  --with-apxs=/usr/sbin/apxs \
  --with-apr-includes=/usr/include/apr-1 \
  --prefix=/usr/local

make
sudo make install

cd $MOD_RUBY_LOCATION

sudo cp mod_ruby.so mod_ruby${RUBY_TARGET}.so

echo "done"