#!/usr/bin/env python3 -tt

# Copyright 2013 Jussi Pakkanen

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

#     http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import sys, subprocess, time, datetime
from optparse import OptionParser

parser = OptionParser()
parser.add_option('--wrapper', default=None, dest='wrapper',
                  help='wrapper to run tests with (e.g. valgrind')

def write_log(logfile, test_name, result_str, stdo, stde):
    logfile.write(result_str + '\n\n')
    logfile.write('--- "%s" stdout ---\n' % test_name)
    logfile.write(stdo)
    logfile.write('\n--- "%s" stderr ---\n' % test_name)
    logfile.write(stde)
    logfile.write('\n-------\n\n')

def run_tests(options, datafilename):
    logfile_base = 'meson-logs/testlog'
    if options.wrapper is None:
        wrap = []
        logfilename = logfile_base + '.txt'
    else:
        wrap = [options.wrapper]
        logfilename = logfile_base + '-' + options.wrapper.replace(' ', '_') + '.txt'
    logfile = open(logfilename, 'w')
    logfile.write('Log of Meson test suite run on %s.\n\n' % datetime.datetime.now().isoformat())
    for line in open(datafilename, 'r'):
        line = line.strip()
        if line == '':
            continue
        cmd = wrap + [line]
        starttime = time.time()
        p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        (stdo, stde) = p.communicate()
        endtime = time.time()
        duration = endtime - starttime
        stdo = stdo.decode()
        stde = stde.decode()
        
        if p.returncode != 0:
            result_str = 'Test "%s": FAIL (%.3f s)' % (line, duration)
        else:
            result_str = 'Test "%s": OK (%.3f s)' % (line, duration)
        print(result_str)
        write_log(logfile, line, result_str, stdo, stde)
    print('\nFull log written to %s.' % logfilename)

if __name__ == '__main__':
    (options, args) = parser.parse_args(sys.argv)
    if len(args) != 2:
        print('Test runner for Meson. Do not run on your own, mmm\'kay?')
        print('%s [data file]' % sys.argv[0])
    datafile = args[1]
    run_tests(options, datafile)