Sick of forgetting to clean dir before running bdist_wheel/sdist

mkpypi.release.sh

#!/bin/sh

PYSRC=/usr/bin/python3.4
TMPROOT=/tmp
P=$(readlink -f "$1")
REPO=${P}/.git

if [ ! -d $REPO ]; then
    echo "Need a repo"
    exit
fi

NAME=$(basename "$P")

if [ -n $NAME ]; then
    echo "Building project $NAME";
else
    exit
fi

TMPDIR=${TMPROOT}/${NAME}

if [ -e $TMPDIR ]; then
    echo "Temporary target exists; please remove ${TMPDIR} to continue."
    exit
fi

PROJROOT="${TMPDIR}/${NAME}"
ENVBASE="${TMPDIR}/env"
BUILDENV="${ENVBASE}/build"
TESTENV="${ENVBASE}/test"

mkdir -p $PROJROOT
chdir $TMPDIR

virtualenv -p $PYSRC $BUILDENV
virtualenv -p $PYSRC $TESTENV

BUILDER="${BUILDENV}/bin/python"
TESTER="${TESTENV}/bin/python"

chdir $PROJROOT
git --git-dir=$REPO archive --format=tar HEAD | tar xf -
export PATH="${TESTENV}/bin:$PATH"
$BUILDER -m pip install wheel
$BUILDER setup.py develop
$BUILDER setup.py sdist

$TESTER -m pip install --find-links ./dist $NAME
$TESTER -m unittest ${NAME}.tests.make_suite

rm -rf $TESTENV
virtualenv -p $PYSRC $TESTENV

$BUILDER setup.py bdist_wheel
$TESTER -m pip install --find-links ./dist $NAME
$TESTER -m unittest ${NAME}.tests.make_suite

find ./dist/*

if [ "$2" = "upload" ]; then
    read -p "Upload? " yn
    case $yn in
        Y )
            $BUILDER setup.py register
            $BUILDER setup.py sdist bdist_wheel upload
            break
            ;;
        y )
            $BUILDER setup.py register -r https://testpypi.python.org/pypi;
            $BUILDER setup.py sdist bdist_wheel upload -r https://testpypi.python.org/pypi;
            break
            ;;
    esac
fi