#!/usr/bin/env bash
#
# This is an internal use only script for smoke testing this dist against
# various perlbrew installations.
#

# fail fast and hard
set -eo pipefail

# make sure perlbrew is initialized
. $HOME/perl5/perlbrew/etc/bashrc

die() {
    echo $@
    exit 1
}

check_perlbrew() {
    if [ -z "$PERLBREW_ROOT" ] || [ -z "$PERLBREW_PERL" ]; then
        die "perlbrew does not seem to be initialized"
    fi

    if [ ! -d $PERLBREW_ROOT/perls/$PERLBREW_PERL ]; then
        die "$PERLBREW_PERL does not seem to be a valid perl installation"
    fi

    if [ ! -d $PERLBREW_ROOT/perls/$PERLBREW_PERL/.git ]; then
        die "perlbrew installation $PERLBREW_PERL is not a git repository"
    fi
}

perlbrew_reset() {
    (
        cd $PERLBREW_ROOT/perls/$PERLBREW_PERL
        git clean -fdx
        git checkout .
    )
}

install_cpan_deps() {
    PERL_VERSION=$(perl -e 'print $]')

    if [ ! -z "$CPAN_MINVERSION" ]; then
        cpanm -q --notest \
            Test::More@0.94 \
            URI@1.30 \
            LWP::UserAgent@2.033 \
            Apache::Test@1.39 \
            Class::Load@0.03
    else
        cpanm -q --notest --skip-satisfied --installdeps .

        # install optional modules so that tests run
        cpanm -q --notest --skip-satisfied URI~1.30 LWP::UserAgent~2.033

        # modern Test::More+ApacheTest and 5.8.9 do not play nicely together.
        # force downgrade to 0.94 if necessary
        if [ $PERL_VERSION = "5.008009" ] || [ $PERL_VERSION = "5.010001" ]; then
            cpanm -q --notest Test::More@0.94
        fi
    fi

    # if author testing is set, install author testing deps
    if [ ! -z "$AUTHOR_TESTING" ]; then
        cpanm -q --notest Test::Pod
    fi

    # if signature testing is on, install Module::Signature
    if [ ! -z "$TEST_SIGNATURE" ]; then
        cpanm -q --notest Module::Signature
    fi
}

smoke_perl() {
    local variant=$1

    perlbrew use $variant

    check_perlbrew

    perlbrew_reset

    install_cpan_deps

    [ -f Makefile ] && make clean

    perl Makefile.PL && make test
}

perlbrew list | grep apache | sed -e 's/*//' | while read variant
do
    echo "=====> TESTING AGAINST PERLBREW INSTALL: $variant <====="

    smoke_perl $variant

    echo ""
done