#!/usr/bin/perl
#
# Check for errors in valgrind logs.
#
# The canonical version of this file is maintained in the rra-c-util package,
# which can be found at <https://www.eyrie.org/~eagle/software/rra-c-util/>.
#
# Copyright 2018-2019, 2021 Russ Allbery <eagle@eyrie.org>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
#
# SPDX-License-Identifier: MIT

use 5.010;
use strict;
use warnings;

use lib "$ENV{C_TAP_SOURCE}/tap/perl";

use Test::RRA;
use Test::RRA::Automake qw(automake_setup);

use File::Spec;
use Test::More;

# Skip this test if C_TAP_VALGRIND was not set.
if (!exists $ENV{C_TAP_VALGRIND}) {
    plan skip_all => 'Not testing under valgrind';
}

# Set up Automake testing.
automake_setup({ chdir_build => 1 });

# Gather the list of valgrind logs (and skip this test if there are none).
opendir(my $logdir, File::Spec->catfile('tests', 'tmp', 'valgrind'))
  or plan skip_all => 'No valgrind logs in tests/tmp/valgrind';
my @logs = grep { m{ \A log [.] }xms } readdir $logdir;
closedir($logdir) or BAIL_OUT("cannot close directory: $!");

# Check each log file.
plan tests => scalar(@logs);
for my $file (@logs) {
    my $path = File::Spec->catfile('tests', 'tmp', 'valgrind', $file);
    open(my $log, '<', $path) or BAIL_OUT("cannot open $path: $!");
    my $okay = 1;
    my @log;
    while (defined(my $line = <$log>)) {
        push(@log, $line);
        if ($line =~ m{ ERROR [ ] SUMMARY: [ ] (\d+) [ ] errors }xms) {
            $okay = ($1 == 0);
        }
    }
    close($log) or BAIL_OUT("cannot close $path: $!");
    if ($okay) {
        unlink($path);
    } else {
        for my $line (@log) {
            print '# ', $line
              or BAIL_OUT("cannot print to standard output: $!");
        }
    }
    ok($okay, $path);
}

# Remove tests/tmp/valgrind if it's now empty.
rmdir(File::Spec->catfile('tests', 'tmp', 'valgrind'));
rmdir(File::Spec->catfile('tests', 'tmp'));