#!/bin/bash

set -e
set -u

function usage() {
    echo "make mysql with the tokudb storage engine from github repo's"
    echo "--git_tag=$git_tag"
    echo "--mysqlbuild=$mysqlbuild"
    echo "--mysql=$mysql"
    echo "--tokudb_version=$tokudb_version"
    echo "--mysql_tree=$mysql_tree --ftengine_tree=$ftengine_tree --ftindex_tree=$ftindex_tree --jemalloc_tree=$jemalloc_tree --backup_tree=$backup_tree"
    echo 
    echo "community release builds using the tokudb-7.0.1 git tag"
    echo "    make.mysql.bash --mysqlbuild=mysql-5.5.30-tokudb-7.0.1-linux-x86_64"
    echo "    make.mysql.bash --mysqlbuild=mariadb-5.5.30-tokudb-7.0.1-linux-x86_64"
    echo "    make.mysql.bash --git_tag=tokudb-7.0.1 --mysql=mysql-5.5.30"
    echo
    echo "community debug builds using the tokudb-7.0.1 git tag"
    echo "    make.mysql.bash --mysqlbuild=mysql-5.5.30-tokudb-7.0.1-debug-linux-x86_64"
    echo
    echo "enterprise release builds at the HEAD of the repos"
    echo "    make.mysql.bash --mysqlbuild=mysql-5.5.30-tokudb-test-e-linux-x86_64"
    echo 
    echo "community release builds of a branch"
    echo "    make.mysql.bash --mysql=mysql-5.5.30 --mysql_tree=<your mysql tree name> --ftengine_tree=<your ft-engine tree name> --tokudb_version=<your test string>>"
    return 1
}

pushd $(dirname $0)
    source ./common.sh
popd

PATH=$HOME/bin:$PATH

system=$(uname -s | tr '[:upper:]' '[:lower:]')
arch=$(uname -m | tr '[:upper:]' '[:lower:]')
makejobs=$(get_ncpus)

git_tag=HEAD
mysqlbuild=
mysql=
cc=gcc47
cxx=g++47
build_debug=0
build_type=community
build_tgz=1
build_rpm=0
tokudb_version=
tokudb_patches=1
cmake_build_type=RelWithDebInfo
mysql_tree=
ftengine_tree=
ftindex_tree=
jemalloc_version=3.3.0
jemalloc_tree=
backup_tree=

# parse arguments
while [ $# -gt 0 ] ; do
    arg=$1; shift
    if [[ $arg =~ --(.*)=(.*) ]] ; then
        k=${BASH_REMATCH[1]}; v=${BASH_REMATCH[2]}
        eval $k=$v
        if [ $k = mysqlbuild ] ; then
            parse_mysqlbuild $mysqlbuild
            if [ $? != 0 ] ; then exit 1; fi
        elif [ $k = mysql ] ; then
            parse_mysql $mysql
            if [ $? != 0 ] ; then exit 1; fi
        fi
    else
        usage; exit 1;
    fi
done

# compute more version names etc.
if [ -z $mysqlbuild ] ; then
    if [ -z $tokudb_version ] ; then
        if [ $git_tag = HEAD ] ; then
            tokudb_version=$(date +%s)
        elif [[ $git_tag =~ tokudb-(.*) ]] ; then
            tokudb_version=${BASH_REMATCH[1]}
        else
            tokudb_version=$git_tag
            git_tag=HEAD
        fi
    fi
    if [ $build_debug != 0 ] ; then
        if [ $cmake_build_type = RelWithDebInfo ] ; then cmake_build_type=Debug; fi
        tokudb_version=$tokudb_version-debug
    fi
    if [ $build_type = enterprise ] ; then
        tokudb_version=$tokudb_version-e
    fi
fi

# download all the mysql source
if [ ! -d $mysql_distro ] ; then
    github_download Tokutek/$mysql_distro $(git_tree $git_tag $mysql_tree) $mysql_distro
fi

cd $mysql_distro

# install the backup source
if [ ! -d toku_backup ] ; then
    github_download Tokutek/backup-$build_type $(git_tree $git_tag $backup_tree) backup-$build_type
    cp -r backup-$build_type/backup toku_backup
fi

if [ ! -d ft-engine ] ; then
    github_download Tokutek/ft-engine $(git_tree $git_tag $ftengine_tree) ft-engine

    # install the tokudb storage engine source
    cp -r ft-engine/storage/tokudb storage/

    # merge the mysql tests
    mv mysql-test mysql-test-save
    cp -r ft-engine/mysql-test .
    cp -r mysql-test-save/* mysql-test
    rm -rf mysql-test-save

    # install the tokudb scripts
    cp -r ft-engine/scripts/* scripts/
fi

if [ ! -d storage/tokudb/ft-index ] ; then
    github_download Tokutek/ft-index $(git_tree $git_tag $ftindex_tree) storage/tokudb/ft-index
fi

if [ ! -d storage/tokudb/ft-index/third_party/jemalloc ] ; then
    github_download Tokutek/jemalloc $(git_tree $git_tag $jemalloc_tree) storage/tokudb/ft-index/third_party/jemalloc
fi

# append tokudb-specific version
if [ $(fgrep tokudb VERSION | wc -l) = 0 ] ; then
    # append the tokudb version to the MYSQL_VERSION_EXTRA variable in the VERSION file
    sed --in-place="" -e "s/^MYSQL_VERSION_EXTRA=.*/&-tokudb-${tokudb_version}/" VERSION
fi

# prints a cmake command to eval
function generate_cmake_cmd () {
    local ls_remote # dont combine this with the following line
    ls_remote=$(git ls-remote https://github.com/Tokutek/ft-index.git $git_tag)
    if [ $? != 0 ] ; then
        echo 1>&2 "git ls-remote https://github.com/Tokutek/ft-index.git $git_tag failed $?"
        test 0 = 1; return
    fi
    local ft_revision=0x$(echo $ls_remote | cut -c-7)

    echo -n CC=$cc CXX=$cxx cmake \
        -D BUILD_CONFIG=mysql_release \
        -D CMAKE_BUILD_TYPE=$cmake_build_type \
        -D CMAKE_TOKUDB_REVISION=$ft_revision \
        -D BUILD_TESTING=OFF \
        -D USE_GTAGS=OFF \
        -D USE_CTAGS=OFF \
        -D USE_ETAGS=OFF \
        -D USE_CSCOPE=OFF

    if [ $build_debug = 1 ] ; then
        echo -n " " \
            -D USE_VALGRIND=ON \
            -D TOKU_DEBUG_PARANOID=ON
    else
        echo -n " " \
            -D USE_VALGRIND=OFF \
            -D TOKU_DEBUG_PARANOID=OFF
    fi

    if [[ $mysql_distro =~ ^Percona ]] ; then
        echo -n " " \
            -D WITH_EMBEDDED_SERVER=OFF
    fi

    if [ $system = darwin ] ; then
        echo -n " " \
            -D WITH_SAFEMALLOC=OFF \
            -D WITH_SSL=system
    fi

    if [ $build_type = enterprise ] ; then
        echo -n " " \
            -D COMPILATION_COMMENT=\"TokuDB Enterprise Server \(GPL\)\"
    fi
}

function generate_cmake_cmd_rpm() {
    if [ $system = linux -a $mysql_distro = mariadb ] ; then
        linux_distro=linux
        if [ -f /etc/issue ] ; then
            if [[ "$(head -1 /etc/issue)" =~ "Red Hat Enterprise Linux Server release ([56])" ]] ; then
                linux_distro=rhel${BASH_REMATCH[1]}
            fi
            if [[ "$(head -1 /etc/issue)" =~ "CentOS release ([56])" ]] ; then
                linux_distro=centos${BASH_REMATCH[1]}
            fi
        fi
        echo -n " " -D RPM=$linux_distro
    elif [ $system = linux -a $mysql_distro != mariadb ] ; then
        echo 1>&2 "I don't know how to build rpms for mysql yet."
        test 0 = 1; return
    fi
}

package_source_done=0
if [ $build_tgz != 0 ] ; then

    mkdir -p build.$cmake_build_type
    pushd build.$cmake_build_type

    # actually build
    cmd=$(generate_cmake_cmd)
    if [ $? != 0 ] ; then exit 1; fi
    eval $cmd ..
    if [ $package_source_done = 0 ] ; then
        make package_source
        package_source_done=1
    fi
    make package -j$makejobs
    popd
fi

if [ $build_rpm != 0 ] ; then

    mkdir -p build.rpm.$cmake_build_type
    pushd build.rpm.$cmake_build_type

    # actually build
    cmd=$(generate_cmake_cmd; generate_cmake_cmd_rpm)
    if [ $? != 0 ] ; then exit 1; fi
    eval $cmd ..
    if [ $package_source_done = 0 ] ; then
        make package_source
        package_source_done=1
    fi
    make package -j$makejobs
    popd
fi