#!/bin/bash

# Test that installation of all dependencies works fine if versions are set to

# the minimum ones.

set -e

if [ -n "$VIRTUAL_ENV" ]; then

    echo "This script will create its own virtualenv - please don't run it inside an existing one." >&2

    exit 1

fi

cd "$(hg root)"

venv=build/minimum-dependency-versions-venv

log=build/minimum-dependency-versions.log

min_requirements=build/minimum-dependency-versions-requirements.txt

echo "virtualenv: $venv"

echo "log: $log"

echo "minimum requirements file: $min_requirements"

# clean up previous runs

rm -rf "$venv" "$log"

mkdir -p "$venv"

# Make a light weight parsing of setup.py and dev_requirements.txt,

# finding all >= requirements and dumping into a custom requirements.txt

# while fixating the requirement at the lower bound.

sed -n 's/.*"\(.*\)>=\(.*\)".*/\1==\2/p' setup.py > "$min_requirements"

sed 's/>=/==/p' dev_requirements.txt >> "$min_requirements"

virtualenv -p "$(command -v python2)" "$venv"

source "$venv/bin/activate"

pip install --upgrade pip setuptools

pip install -e . -r "$min_requirements" python-ldap python-pam 2> >(tee "$log" >&2)

# Strip out the known Python 2.7 deprecation message.

sed -i '/DEPRECATION: Python 2\.7 will reach the end of its life/d' "$log"

# Treat any message on stderr as a problem, for the caller to interpret.

if [ -s "$log" ]; then

    echo

    echo "Error: pip detected following problems:"

    cat "$log"

    echo

    exit 1

fi

freeze_txt=build/minimum-dependency-versions.txt

pip freeze > $freeze_txt

echo "Installation of minimum packages was successful, providing a set of packages as in $freeze_txt . Now running test suite..."

pytest

echo "Test suite execution was successful."

echo "You can now do additional validation using virtual env '$venv'."