.bashrc

#
# ~/.bashrc
#

# If not running interactively, don't do anything
[[ $- != *i* ]] && return

alias ls='ls --color=auto'
PS1='[\u@\h \W]\$ '

###########################################################################
# Automatically activate Git projects' virtual environments based on the
# directory name of the project. Virtual environment name can be overridden
# by placing a .venv file in the project root with a virtualenv name in it
function workon_cwd {
    # Check that this is a Git repo
    GIT_DIR=`git rev-parse --git-dir 2> /dev/null`
    if [ $? == 0 ]; then
	# Find the repo root and check for virtualenv name override
	GIT_DIR=`\cd $GIT_DIR; pwd`
	PROJECT_ROOT=`dirname "$GIT_DIR"`
	ENV_NAME=`basename "$PROJECT_ROOT"`
	if [ -f "$PROJECT_ROOT/.venv" ]; then
	    ENV_NAME=`cat "$PROJECT_ROOT/.venv"`
	fi
	# Activate the environment only if it is not already active
	if [ "$VIRTUAL_ENV" != "$WORKON_HOME/$ENV_NAME" ]; then
	    if [ -e "$WORKON_HOME/$ENV_NAME/bin/activate" ]; then
		workon "$ENV_NAME" && export CD_VIRTUAL_ENV="$ENV_NAME"
	    fi
	fi
    elif [ $CD_VIRTUAL_ENV ]; then
	# We've just left the repo, deactivate the environment
	# Note: this only happens if the virtualenv was activated automatically
	deactivate && unset CD_VIRTUAL_ENV
    fi
}

# New cd function that does the virtualenv magic
function venv_cd {
    cd "$@" && workon_cwd
}

alias cd="venv_cd"