#!/bin/sh

USAGE="USAGE: lt.clone-langtools.sh <repo> <dir> [depth]\n\
\t<repo>\t identifies the mercurial consolidated repo (i.e. 'https://github.com/Project-Skara/jdk.git')\n\
\t<dir>\t is the folder in which the repo is cloned\n\
\t<depth>\t is the (optional) history depth\n"

DEPTH_OPT=""

if [ "x$1" = "x" ]; then
echo -e $USAGE
exit 1
fi

if [ "x$2" = "x" ]; then
echo -e $USAGE
exit 1
fi

if [ "x$3" != "x" ]; then
DEPTH_OPT="--depth $3"
fi

mkdir $2
cd $2
git init
git config core.sparseCheckout true

echo "make/langtools" >> .git/info/sparse-checkout
echo "src/jdk.compiler" >> .git/info/sparse-checkout
echo "src/java.compiler" >> .git/info/sparse-checkout
echo "src/jdk.javadoc" >> .git/info/sparse-checkout
echo "src/jdk.jdeps" >> .git/info/sparse-checkout
echo "src/jdk.jshell" >> .git/info/sparse-checkout
echo "test/langtools" >> .git/info/sparse-checkout

git remote add origin $1
git pull origin master $DEPTH_OPT
cd ..