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using 'big' autoenv script
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@jhermann
jhermann committed Mar 27, 2017
1 parent 929ba53 commit bfe3b3a
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212 changes: 211 additions & 1 deletion .env
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test ! -f ".venv/debianized-sentry/bin/activate" || . ".venv/debianized-sentry/bin/activate"
# /bin/bash - help gedit syntax highlight do the right thing
# autoenv script (https://github.com/kennethreitz/autoenv)
# Use ". .env -h" for help.
#
# This script is an autoenev script that either activates or creates
# a local virtualenv in '.venv' for (almost) any project. Typical
# project assets like 'setup.py' and requirements files are used to
# populate the virtualenv.
#
# This script is tested with bash, report problems with other shells to
#
# https://github.com/Springerle/py-generic-project/issues
#
# It should work on any Linux, and Mac OSX.
#
_venv_virtualenv=/usr/bin/virtualenv
_venv_py3="{{ cookiecutter.use_py3 }}"
_venv_pip_req='pip>8'
_venv_master_url="https://raw.githubusercontent.com/Springerle/py-generic-project/master/.env"

_venv_temp=/usr/local/bin/virtualenv
if test -x $_venv_temp; then
_venv_virtualenv=$_venv_temp
fi
test "${_venv_py3:0:2}" != '{''{' || _venv_py3=false
if $_venv_py3; then # Python 3 mode?
# /opt/pyenv, see https://github.com/jhermann/priscilla/tree/master/pyenv
_venv_temp=/opt/pyenv/bin/pyvenv-3
if test -x $_venv_temp; then
_venv_virtualenv=$_venv_temp
fi
# python3 venv in recent Debian / Ubuntu
for _venv_temp in 3 3.6 3.5 3.4 3.3; do
_venv_temp=/usr/bin/pyvenv-$_venv_temp
if test -x $_venv_temp; then
_venv_virtualenv=$_venv_temp
break
fi
done
fi

_venv_readlink=readlink
case "$(uname -s)" in
# See http://en.wikipedia.org/wiki/Uname#Examples
Darwin)
_venv_temp="/usr/local/opt/coreutils/libexec/gnubin/readlink"
if test -x $_venv_temp; then
_venv_readlink=$_venv_temp
else
echo "*** No readlink command, do a 'brew install coreutils'..."
return 1
fi
;;
CYGWIN*)
;;
Linux|*)
;;
esac

test -z "$JENKINS_URL" || echo '***' "\$0=$0" "\$BASH_SOURCE=${BASH_SOURCE[0]}"
if test "$0" = "-bash" -o "$(basename -- "$0")" = "bash" -o "$(basename -- "${BASH_SOURCE[0]}")" = ".env"; then
_venv_script=$($_venv_readlink -f ${BASH_SOURCE[0]})
elif test "$(basename -- "$0")" = ".env"; then
_venv_script=$($_venv_readlink -f "$0")
fi
_venv_script="${_venv_script:-/dont-know-really/.env}"
_venv_xtrace=$(set +o | grep xtrace)
set +x
_venv_name="$(basename $(pwd))"

_venv_pip_log() {
if $_venv_verbose; then
cat
else
egrep "Found.existing.installation|Collecting|Installing.collected.packages|Searching.for|Installed|Finished"
fi
}

# command line flags, mostly for CI server usage
_venv_create=false
_venv_develop=false
_venv_verbose=false
while test "${1:0:1}" = "-"; do
case "$1" in
--yes) _venv_create=true ;;
--develop) _venv_develop=true ;;
--verbose | -v) _venv_verbose=true; set -x ;;
--virtualenv) shift; _venv_virtualenv="$1" ;;
--help | -h)
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
echo "usage: . $_venv_script <options>"
echo
echo "Create and/or activate a Python virtual environment. Updates pip and other"
echo "system packages, and recognizes 'dev-requirements.txt' and 'setup.py' or"
echo "'requirements.txt'."
echo
echo "This is an autoenv script (see https://github.com/kennethreitz/autoenv)."
echo
echo "Options:"
echo " --yes create missing venv without prompting"
echo " --develop call 'develop -U' on activation"
echo " -v | --verbose don't filter install logs on terminal"
echo " (full logs in '.venv/pip-install.log')"
echo " -h | --help this help message"
echo " --virtualenv PATH set explicit path of virtualenv binary to use"
echo " --update update to the newest master copy"
return 1
;;
--update)
python <<EOF
if 1:
try:
from urllib.request import urlopen
except ImportError:
from urllib2 import urlopen
open('/tmp/$USER-py-env-update.py', 'wb').write(urlopen('$_venv_master_url').read())
EOF
grep "unset _venv_xtrace" "/tmp/$USER-py-env-update.py" >/dev/null || return 1
sed -r -e "s/^_venv_py3=.*/_venv_py3=$_venv_py3/" <"/tmp/$USER-py-env-update.py" >.env
git diff .env || :
echo ".env script update OK"
return 0
;;
*) echo "WARNING: Ignored unknown option '$1'" ;;
esac
shift
done

# Outside the tree of the .env script?
if pwd | egrep -v '^'$(dirname "$_venv_script")'($|/)' >/dev/null; then
: echo Outside "[$0 $1 ; $_venv_script]"

# Inside the tree of the .env script, but have another local '.env'?
elif test \! -f .env -o "$_venv_script" != "$(pwd)/.env"; then
: echo Inside "[$0 $1 ; $_venv_script]"

# Only try virtualenv creation outside of template dirs; the egrep pattern is escaped for hiding it from Jinja2
elif pwd | egrep -v '/{''{''.*''}''}(/|$)' >/dev/null || $_venv_create; then
test -f ".env" && _venv_ask=true || _venv_ask=false

# Look for existing venv at common locations
for _venv_base in .venv venv . ..; do
if test -f "$_venv_base/$_venv_name/bin/activate"; then
deactivate 2>/dev/null || :
. "$_venv_base/$_venv_name/bin/activate"
if test -f setup.py; then
$_venv_develop && python setup.py -q develop -U || :
python setup.py --name --version --url | tr \\n \\0 \
| xargs -0 printf "*** Activated %s %s @ %s\\n" || :
else
echo "*** Activated $_venv_base/$_venv_name"
fi
_venv_ask=false
break
fi
done

if $_venv_ask && test \! -d .venv; then
$_venv_create || { read -p "No virtualenv found, shall I create one for you? [Y/n] " -n 1 -r || REPLY='n'; echo; }
if $_venv_create || echo "$REPLY" | egrep '^[Yy]?$' >/dev/null; then
# Create, activate, and update virtualenv
$_venv_virtualenv ".venv/$_venv_name"
. ".venv/$_venv_name/bin/activate"
".venv/$_venv_name/bin/pip" --log ".venv/pip-install.log" install -U "$_venv_pip_req" 2>&1 | _venv_pip_log \
|| echo >&2 "!!! WARN: pip -U pip failed (RC=$?), see .venv/pip-install.log for details"
".venv/$_venv_name/bin/pip" --log ".venv/pip-install.log" install -U "setuptools>=14.3" "wheel>=0.24.0" 2>&1 | _venv_pip_log \
|| echo >&2 "!!! WARN: pip -U wheel failed (RC=$?), see .venv/pip-install.log for details"

# Get rid of cruft some older systems produce
".venv/$_venv_name/bin/pip" --log ".venv/pip-install.log" uninstall --yes distribute >/dev/null 2>&1 || :

# pypandoc fails when the base package is missing, so we install it here, if possible
if which pandoc >/dev/null ; then
".venv/$_venv_name/bin/pip" --log ".venv/pip-install.log" install pypandoc 2>&1 | _venv_pip_log \
|| echo >&2 "!!! WARN: pip install pypandoc failed (RC=$?), see .venv/pip-install.log for details"
fi

# Install development + project dependencies
if test -f dev-requirements.txt; then
".venv/$_venv_name/bin/pip" --log ".venv/pip-install.log" install -r dev-requirements.txt 2>&1 | _venv_pip_log \
|| echo >&2 "!!! WARN: pip install dev-requirements failed (RC=$?), see .venv/pip-install.log for details"
fi
if test -f setup.py; then
if grep "^# mkvenv: no-deps" "setup.py" >/dev/null; then
echo "*** Not installing setup.py packages as requested"
else
".venv/$_venv_name/bin/python" setup.py develop -U 2>&1 | _venv_pip_log
fi
echo
".venv/$_venv_name/bin/python" setup.py --name --version --author --author-email --license --description --url \
| tr \\n \\0 | xargs -0 printf "%s %s by %s <%s> [%s]\\n%s\\n%s\\n" || :
else
echo
if test -f requirements.txt; then
echo "*** No 'setup.py' found, installing requirements..."
".venv/$_venv_name/bin/pip" --log ".venv/pip-install.log" install -r requirements.txt 2>&1 | _venv_pip_log
else
echo "*** No 'setup.py' or 'requirements.txt' found, all done."
fi
fi
else
# prevent constant prompting
mkdir -p .venv
fi
fi
fi

unset _venv_script _venv_name _venv_ask _venv_create _venv_develop _venv_pip_log _venv_base
unset _venv_readlink _venv_temp _venv_virtualenv _venv_verbose _venv_py3 _venv_pip_req _venv_master_url
eval $_venv_xtrace # restore xtrace state
unset _venv_xtrace

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