build_clang.sh

#!/bin/sh
set -o nounset
set -o errexit
set -o xtrace

source_dir="llvm.src"
build_dir="llvm.build"
target_dir="llvm.install"

svn_update()
{
    pushd $1
    trap popd SIGINT
    svn up -q
    svn info | grep Revision
    trap - SIGINT
    popd
}
gitsvn_update()
{
    pushd $1
    trap popd SIGINT
    git svn fetch
    git svn rebase
    trap - SIGINT
    popd
}

# http://llvm.org/svn/llvm-project/llvm/trunk
svn_update $source_dir
# http://llvm.org/svn/llvm-project/cfe/trunk
gitsvn_update "$source_dir/tools/clang"
# http://llvm.org/svn/llvm-project/clang-tools-extra/trunk
#svn_update "$source_dir/tools/clang/tools"
# http://llvm.org/svn/llvm-project/compiler-rt/trunk
svn_update "$source_dir/projects"

build()
{
    local dest_dir=$(realpath $target_dir)
    local src_dir=$(realpath $source_dir)

    if [ ! -d $build_dir ]; then
        rm -rf $build_dir 
        mkdir $build_dir
        cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=ON $src_dir --build $build_dir
    fi
    
    make -C $build_dir -j9 all
    rm -rf $dest_dir
    mkdir $dest_dir
    DESTDIR=$dest_dir make -C $build_dir install
}
build false