#!/usr/bin/env bash

# This script creates the source tree as the other LLVM scripts would like to
# find. It's recommended that you use this script before all, and keep the
# format correct, so all the other scripts work accordingly. This script
# honours the LLVM_GITRW requirement and creates the appropriate type.

. llvm-common

function prepare() {
  src=$1
  origin=$2
  svn=$3
  # Clone Linaro repo
  if [ ! -d $src/.git ]; then
    mkdir -p $src
    cd $src/..
    safe_run git clone $origin $src
  fi
  # Link with upstream SVN
  if [[ $LLVM_GITRW = 'yes' && ! -d $src/.git/svn ]]; then
    cd $src
    safe_run git svn init $svn --username=$LLVM_SVNUSER
    safe_run git config svn-remote.svn.fetch :refs/remotes/origin/master
    safe_run git svn fetch
  fi
}

if [ -z $LLVM_SVNUSER ]; then
  gitroot=https://git.linaro.org/toolchain/llvm
  svnroot=https://llvm.org/svn/llvm-project
else
  gitroot=ssh://$LLVM_GITUSER@review.linaro.org:29418/toolchain/llvm
  svnroot=https://$LLVM_SVNUSER@llvm.org/svn/llvm-project
fi

llvm_repos=$LLVM_ROOT/repos

echo " + Setting up LLVM"
prepare $llvm_repos/llvm $gitroot/llvm $svnroot/llvm/trunk

echo " + Setting up Clang"
prepare $llvm_repos/clang $gitroot/clang $svnroot/cfe/trunk

echo " + Setting up Clang Tools Extra"
prepare $llvm_repos/clang-tools-extra \
        $gitroot/clang-tools-extra $svnroot/clang-tools-extra/trunk

echo " + Setting up Compiler-RT"
prepare $llvm_repos/compiler-rt $gitroot/compiler-rt $svnroot/compiler-rt/trunk

echo " + Setting up LLD Linker"
prepare $llvm_repos/lld $gitroot/lld $svnroot/lld/trunk

echo " + Setting up LibC++"
prepare $llvm_repos/libcxx $gitroot/libcxx $svnroot/libcxx/trunk

echo " + Setting up LibC++ABI"
prepare $llvm_repos/libcxxabi $gitroot/libcxxabi $svnroot/libcxxabi/trunk

echo " + Setting up LibUnwind"
prepare $llvm_repos/libunwind $gitroot/libunwind $svnroot/libunwind/trunk

echo " + Setting up LLDB Debugger"
prepare $llvm_repos/lldb $gitroot/lldb $svnroot/lldb/trunk

echo " + Setting up Test Suite"
prepare $llvm_repos/test-suite $gitroot/test-suite $svnroot/test-suite/trunk

echo " + Setting up LNT Test harness"
prepare $llvm_repos/lnt $gitroot/lnt $svnroot/lnt/trunk

echo " + Setting up Zorg Buildbot Config"
prepare $llvm_repos/zorg $gitroot/zorg $svnroot/zorg/trunk

echo " + Done"