# usage: source hacking/env-setup [-q]

 #    modifies environment for running Ansible from checkout

 # Default values for shell variables we use
 PYTHONPATH=${PYTHONPATH-""}
 PATH=${PATH-""}
 MANPATH=${MANPATH-""}

 verbosity=${1-info} # Defaults to `info' if unspecified
 
 if [ "$verbosity" = -q ]; then
     verbosity=silent
 fi

 # When run using source as directed, $0 gets set to bash, so we must use $BASH_SOURCE

 if [ -n "$BASH_SOURCE" ] ; then

     HACKING_DIR=$(dirname "$BASH_SOURCE")

 elif [ $(basename -- "$0") = "env-setup" ]; then

     HACKING_DIR=$(dirname "$0")

 # Works with ksh93 but not pdksh

 elif [ -n "$KSH_VERSION" ] && echo $KSH_VERSION | grep -qv '^@(#)PD KSH'; then

     HACKING_DIR=$(dirname "${.sh.file}")

 else
     HACKING_DIR="$PWD/hacking"
 fi

 # 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'))")

 export ANSIBLE_HOME="$(dirname "$FULL_PATH")"

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

 expr "$PYTHONPATH" : "${PREFIX_PYTHONPATH}.*" > /dev/null || export PYTHONPATH="$PREFIX_PYTHONPATH:$PYTHONPATH"
 expr "$PATH" : "${PREFIX_PATH}.*" > /dev/null || export PATH="$PREFIX_PATH:$PATH"
 expr "$MANPATH" : "${PREFIX_MANPATH}.*" > /dev/null || export MANPATH="$PREFIX_MANPATH:$MANPATH"

 #
 # Generate egg_info so that pkg_resources works
 #
 
 # Do the work in a function so we don't repeat ourselves later
 gen_egg_info()
 {

     if [ -e "$PREFIX_PYTHONPATH/ansible.egg-info" ] ; then

         \rm -rf "$PREFIX_PYTHONPATH/ansible.egg-info"

     fi

     python setup.py egg_info

 }
 
 if [ "$ANSIBLE_HOME" != "$PWD" ] ; then

     current_dir="$PWD"

 else

     current_dir="$ANSIBLE_HOME"

 fi

 (
 	cd "$ANSIBLE_HOME"
 	if [ "$verbosity" = silent ] ; then
 	    gen_egg_info > /dev/null 2>&1

             find . -type f -name "*.pyc" -delete > /dev/null 2>&1

 	else
 	    gen_egg_info

             find . -type f -name "*.pyc" -delete

 	fi
 	cd "$current_dir"
 )

 if [ "$verbosity" != silent ] ; then

     cat <<- EOF
 	
 	Setting up Ansible to run out of checkout...
 	
 	PATH=$PATH
 	PYTHONPATH=$PYTHONPATH
 	MANPATH=$MANPATH
 	
 	Remember, you may wish to specify your host file with -i
 	
 	Done!
 	
 	EOF

 fi