Playing with cloned virtual environments

output

Checking env_base virtual environment...
ordereddict exists
minimock exists
0.9

Checking env_child virtual environment...
ordereddict exists
minimock exists
0.8

Checking env_base virtual environment...
ordereddict exists
minimock exists
0.9

virtualenv-dawg.sh

#!/bin/sh

set -e
# set -x

ROOT_DIR=`echo ~/Deploy/virtualenv-dawg`

function check_library {
    echo "try:
    import $1
except ImportError:
    print('$1 does not exist')
else:
    print('$1 exists')
" > $ROOT_DIR/check_library.py
    python $ROOT_DIR/check_library.py
    rm $ROOT_DIR/check_library.py
}

function check_virtualenv {
    echo "Checking $1 virtual environment..."
    check_library ordereddict
    check_library minimock
    python -c 'import flask; print(flask.__version__)'
    echo
}

VENV_BASE=env_base
VERSION_BASE=0.9

VENV_CHILD=env_child
VERSION_CHILD=0.8

if [ ! -d "$ROOT_DIR" ]; then
    mkdir "$ROOT_DIR"
fi

if [ ! -d "$ROOT_DIR/cache" ]; then
    mkdir "$ROOT_DIR/cache"
fi

cd $ROOT_DIR

rm -rf $VENV_BASE
rm -rf $VENV_CHILD

sudo pip install -q --download-cache=$ROOT_DIR/cache ordereddict virtualenv-clone

virtualenv -q --distribute --system-site-packages $VENV_BASE

. $VENV_BASE/bin/activate
pip install -q --download-cache=$ROOT_DIR/cache MiniMock
pip install -q --download-cache=$ROOT_DIR/cache Flask==$VERSION_BASE
check_virtualenv $VENV_BASE
deactivate

virtualenv-clone $VENV_BASE $VENV_CHILD

. $VENV_CHILD/bin/activate
pip install -q --download-cache=$ROOT_DIR/cache Flask==$VERSION_CHILD
check_virtualenv $VENV_CHILD
deactivate

. $VENV_BASE/bin/activate
check_virtualenv $VENV_BASE
deactivate

sudo pip uninstall -q ordereddict virtualenv-clone