#!/bin/bash
#
# helper script to run some predefined set of tests
# store results in a file that contains the git hash
# and also shows differences if any
#
# if this command is run as all-tests3, then we will just do
# make PYTHON=python3
#
# xxx - WARNING : most likely the python2 and python3 tests
# cannot safely be run together; need to check the nepi exp_ids
# used more closely

COMMAND=$(basename $0)

PYTHON=python
version=2
echo $COMMAND | grep -q 3 && { PYTHON=python3; version=3; }

hash=$(git log -n 1 | head -1 | sed -e 's,commit ,,' -e 's,\(........\).*,\1,')

# compute output file name
output="zz.py$version.$hash"

# if there is any pending change, use another name
is_pristine=""
changes=$(git diff HEAD | wc -l); changes=$(echo $changes)
[ "$changes" == 0 ] && is_pristine=true
[ -n "$is_pristine" ] || output="$output-pending"

function all_tests () {
    echo all-tests : begin at; date
    begin=$(date +%s)
    echo ========================================
    echo status
    echo ========================================
    echo ===== Current hash $hash
    echo ===== Current branch
    git branch
    echo ===== Uncommitted changes
    git diff HEAD
    echo ========================================
    echo tests
    echo ========================================
    make PYTHON=$PYTHON all-tests
    echo ========================================
    end=$(date +%s)
    echo all-tests : end at; date; echo total duration $(($end-$begin)) seconds
}

# WARNING: the current code for analyzing the output is not quite right
# I've seen cases where the tests session goes very badly - with broken imports for example
# but it's considered OK though
# we mght wish to take the opposite angle : check we have as many OK as expected
# but then the list of default targets should be declared here and not in Makefile
# in any case this is good enough for now

all_tests >& $output
retcod=$?

# analyze this output for success or not
success=$output.success
failure=$output.failed

if [ "$retcod" != 0 ]; then
    touch $failure
elif grep -q '^FAIL' $output; then
     touch $failure
else
    touch $success
fi