# usage: source env-setup [-q]
#        source hacking/env-setup [-q]
#        . ./env-setup [-q]
#        . ./hacking/env-setup [q]
#    modifies environment for running Ansible from checkout

# When run using source as directed, $0 gets set to bash, so we must use $BASH_SOURCE
case "$0" in
    (bash)
        HACKING_DIR="${BASH_SOURCE%/*}";;
    (*)
        HACKING_DIR="${0%/*}";;
esac
# The below is an alternative to readlink -fn which doesn't exist on OS X
# Source: http://stackoverflow.com/a/1678636
FULL_PATH=$(python -c "import os; print(os.path.realpath('$HACKING_DIR'))")
ANSIBLE_HOME="${FULL_PATH%/*}"

PREFIX_PYTHONPATH="$ANSIBLE_HOME/lib"
PREFIX_PATH="$ANSIBLE_HOME/bin"
PREFIX_MANPATH="$ANSIBLE_HOME/docs/man"

case "$PYTHONPATH" in
  (*${PREFIX_PYTHONPATH}*) :;;
  (*) export PYTHONPATH=$"$PREFIX_PYTHONPATH${PYTHONPATH:+:$PYTHONPATH}";;
esac
case "$MANPATH" in
  (*${PREFIX_MANPATH}*) :;;
  (*) export MANPATH=$"$PREFIX_MANPATH${MANPATH:+:$MANPATH}";;
esac
case "$PATH" in
  (*${PREFIX_PATH}*) :;;
  (*) export PATH=$"$PREFIX_PATH${PATH:+:$PATH}";;
esac
export ANSIBLE_LIBRARY="$ANSIBLE_HOME/library"

# Print out values unless -q is set

if [ $# -eq 0 ] || [ "$1" != "-q" ] ; then
    echo ""
    echo "Setting up Ansible to run out of checkout..."
    echo ""
    echo "PATH=$PATH"
    echo "PYTHONPATH=$PYTHONPATH"
    echo "ANSIBLE_LIBRARY=$ANSIBLE_LIBRARY"
    echo "MANPATH=$MANPATH"
    echo ""

    echo "Remember, you may wish to specify your host file with -i"
    echo ""
    echo "Done!"
    echo ""
fi