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isotovideo
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isotovideo
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#!/usr/bin/perl -w
# Copyright © 2009-2013 Bernhard M. Wiedemann
# Copyright © 2012-2016 SUSE LLC
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, see <http://www.gnu.org/licenses/>.
#
=head1 SYNOPSIS
isotovideo [OPTIONS] [TEST PARAMETER]
Parses vars.json and tests the given assets/ISOs.
=head1 OPTIONS
=over 4
=item B<-d, --debug>
Enable direct output to STDERR instead of autoinst-log.txt
=item B<-v, --version>
Show the current program version and test API version
=item B<-h, -?, --help>
Show this help.
=head1 TEST PARAMETER
All additional command line arguments specified in the C<key=value> format are
parsed as test parameters which take precedence over the settings in the
vars.json file. Lower case key names are transformed into upper case
automatically for convenience.
=cut
use strict;
my $installprefix; # $bmwqemu::scriptdir
BEGIN {
# the following line is modified during make install
$installprefix = undef;
my ($wd) = $0 =~ m-(.*)/-;
$wd ||= '.';
$installprefix ||= $wd;
unshift @INC, "$installprefix";
}
# this shall be an integer increased by every change of the API
# either to the worker or the tests
our $INTERFACE = 12;
use bmwqemu;
use needle;
use autotest;
use commands;
use distribution;
use testapi 'diag';
use Getopt::Long;
require IPC::System::Simple;
use autodie ':all';
no autodie 'kill';
use Cwd;
use POSIX qw(:sys_wait_h _exit);
use Carp 'cluck';
use Time::HiRes qw(gettimeofday tv_interval sleep time);
use File::Spec;
use File::Path;
Getopt::Long::Configure("no_ignore_case");
my %options;
# global exit status
my $r = 1;
sub usage {
my ($return_code) = @_;
$r = $return_code;
eval { use Pod::Usage; pod2usage($return_code); };
if ($@) {
die "cannot display help, install perl(Pod::Usage)\n";
}
}
sub _get_version_string {
my $thisversion = qx{git rev-parse HEAD};
chomp $thisversion;
return "Current version is $thisversion [interface v$INTERFACE]";
}
sub version {
print _get_version_string() . "\n";
exit 0;
}
GetOptions(\%options, 'debug|d', 'help|h|?', 'version|v') or usage(1);
usage(0) if $options{help};
version() if $options{version};
diag(_get_version_string());
# enable debug default when started from a tty
$bmwqemu::direct_output = $options{debug};
# whether tests completed (or we bailed due to a failed 'fatal' test)
my $completed = 0;
select(STDERR);
$| = 1;
select(STDOUT); # default
$| = 1;
$bmwqemu::scriptdir = $installprefix;
bmwqemu::init();
for my $arg (@ARGV) {
if ($arg =~ /^([[:alnum:]_\[\]\.]+)=(.+)/) {
my $key = uc $1;
$bmwqemu::vars{$key} = $2;
diag("Setting forced test parameter $key -> $2");
}
}
# Sanity checks
die "CASEDIR environment variable not set, unknown test case directory" if !defined $bmwqemu::vars{CASEDIR};
die "No scripts in $bmwqemu::vars{CASEDIR}" if !-e "$bmwqemu::vars{CASEDIR}";
my $cpid;
my $testpid;
my $cfd;
my $loop = 1;
sub kill_commands {
return unless $cpid;
# create a copy as cpid is overwritten by SIGCHLD
my $pid = $cpid;
if (kill('TERM', $pid)) {
diag "awaiting death of commands process";
my $ret = waitpid($pid, 0);
diag "commands process exited: $ret";
}
$cpid = 0;
}
sub kill_autotest {
return unless $testpid;
# create a copy as cpid is overwritten by SIGCHLD
my $pid = $testpid;
if (kill('TERM', $pid)) {
diag "awaiting death of testpid $pid";
my $ret = waitpid($pid, 0);
diag "test process exited: $ret";
}
$testpid = 0;
}
sub kill_backend {
if (defined $bmwqemu::backend && $bmwqemu::backend->{backend_pid}) {
# save the pid in a scalar - signal handlers will reset it
my $bpid = $bmwqemu::backend->{backend_pid};
diag "killing backend process $bpid";
kill('-TERM', $bpid);
waitpid($bpid, 0);
diag("done with backend process");
$bmwqemu::backend->{backend_pid} = 0;
}
}
sub signalhandler {
my ($sig) = @_;
diag("signalhandler got $sig - loop $loop");
if ($loop) {
$loop = 0;
return;
}
kill_backend;
kill_commands;
kill_autotest;
_exit(1);
}
sub signalhandler_chld {
while ((my $child = waitpid(-1, WNOHANG)) > 0) {
if ($child == $cpid) {
diag("commands webserver died");
$loop = 0;
$cpid = 0;
next;
}
if ($bmwqemu::backend->{backend_pid} && $child == $bmwqemu::backend->{backend_pid}) {
diag("backend $child died");
$bmwqemu::backend->{backend_pid} = 0;
$loop = 0;
next;
}
if ($child == $testpid) {
diag("tests died");
$testpid = 0;
$loop = 0;
next;
}
diag("unknown child $child died");
}
}
our $test_git_hash;
our $needles_git_hash;
sub init_backend {
my ($name) = @_;
$bmwqemu::vars{BACKEND} ||= "qemu";
# make sure the needles are initialized
my $needles_dir = $bmwqemu::vars{PRODUCTDIR} . '/needles';
needle::init($needles_dir);
$needles_git_hash = calculate_git_hash($needles_dir);
$bmwqemu::vars{NEEDLES_GIT_HASH} = $needles_git_hash;
$bmwqemu::backend = backend::driver->new($bmwqemu::vars{BACKEND});
return $bmwqemu::backend;
}
sub calculate_git_hash {
my ($git_repo_dir) = @_;
my $dir = getcwd;
chdir($git_repo_dir);
chomp(my $git_hash = qx{git rev-parse HEAD});
$git_hash ||= "UNKNOWN";
chdir($dir);
diag "git hash in $git_repo_dir: $git_hash";
return $git_hash;
}
$SIG{TERM} = \&signalhandler;
$SIG{INT} = \&signalhandler;
$SIG{HUP} = \&signalhandler;
$SIG{CHLD} = \&signalhandler_chld;
# make sure all commands coming from the backend will not be in the
# developers's locale - but a defined english one. This is SUSE's
# default locale
$ENV{LC_ALL} = 'en_US.UTF-8';
$ENV{LANG} = 'en_US.UTF-8';
# Try to load the main.pm from one of the following in this order:
# - product dir
# - casedir
#
# This allows further structuring the test distribution collections with
# multiple distributions or flavors in one repository.
$bmwqemu::vars{PRODUCTDIR} ||= $bmwqemu::vars{CASEDIR};
# as we are about to load the test modules store the git hash that has been
# used. If it is not a git repo fail silently, i.e. store an empty variable
$test_git_hash = calculate_git_hash($bmwqemu::vars{CASEDIR});
# TODO find a better place to store hash in than vars.json, see
# https://github.com/os-autoinst/os-autoinst/pull/393#discussion_r50143013
$bmwqemu::vars{TEST_GIT_HASH} = $test_git_hash;
# start the command fork before we get into the backend, the command child
# is not supposed to talk to the backend directly
($cpid, $cfd) = commands::start_server($bmwqemu::vars{QEMUPORT} + 1);
# set a default distribution if the tests don't have one
$testapi::distri = distribution->new;
# add lib of the test distributions - but only for main.pm not to pollute
# further dependencies (the tests get it through autotest)
my @oldINC = @INC;
unshift @INC, $bmwqemu::vars{CASEDIR} . '/lib';
require $bmwqemu::vars{PRODUCTDIR} . "/main.pm";
@INC = @oldINC;
if ($bmwqemu::vars{_EXIT_AFTER_SCHEDULE}) {
diag 'Early exit has been requested with _EXIT_AFTER_SCHEDULE. Only evaluating test schedule.';
exit 0;
}
testapi::init();
# init part
bmwqemu::save_vars();
my $testfd;
($testpid, $testfd) = autotest::start_process();
init_backend();
open(my $fd, ">", "os-autoinst.pid");
print $fd "$$\n";
close $fd;
if (!$bmwqemu::backend->_send_json({cmd => 'alive'})) {
# might throw an exception
$bmwqemu::backend->start_vm();
}
if ($ENV{RUN_VNCVIEWER}) {
system("vncviewer -shared localhost:" . $bmwqemu::vars{VNC} . " -viewonly &");
}
if ($ENV{RUN_DEBUGVIEWER}) {
system("$bmwqemu::scriptdir/debugviewer/debugviewer qemuscreenshot/last.png &");
}
use IO::Select;
my $s = IO::Select->new();
$s->add($testfd);
$s->add($cfd);
$s->add($bmwqemu::backend->{from_child});
# now we have everything, give the tests a go
$testfd->write("GO\n");
my $interactive = 0;
my $needinput = 0;
my $current_test_name;
# timeout for the select (only set for check_screens)
my $timeout = undef;
# do not wait for timeout if set
my $no_wait = undef;
# marks a running check_screen
our $tags = undef;
# set to the socket we have to send replies to when the backend is done
my $backend_requester = undef;
my ($last_check_seconds, $last_check_microseconds) = gettimeofday;
sub _calc_check_delta {
# an estimate of eternity
my $delta = 100;
if ($last_check_seconds) {
$delta = tv_interval([$last_check_seconds, $last_check_microseconds], [gettimeofday]);
}
if ($delta > 0) {
# sleep the remains of one second
$timeout = 1 - $delta;
$timeout = 0 if $timeout < 0;
}
else {
$timeout = 0;
}
return $delta;
}
sub check_asserted_screen {
my ($force_timeout, $no_wait) = @_;
if ($no_wait) {
# prevent CPU overload by waiting at least a little bit
$timeout = 0.1;
}
else {
_calc_check_delta;
# come back later, avoid too often called function
return if $timeout > 0.05;
}
($last_check_seconds, $last_check_microseconds) = gettimeofday;
my $rsp = $bmwqemu::backend->_send_json({cmd => 'check_asserted_screen'}) || {};
# the test needs that information
$rsp->{tags} = $tags;
if ($rsp->{found}) {
myjsonrpc::send_json($testfd, {ret => $rsp});
$tags = $timeout = undef;
}
elsif ($rsp->{timeout}) {
if ($interactive && !$force_timeout) {
# now get fancy
$bmwqemu::backend->_send_json({cmd => 'freeze_vm'});
$rsp->{saveresult} = 1;
myjsonrpc::send_json($testfd, {ret => $rsp});
$needinput = 1;
}
else {
myjsonrpc::send_json($testfd, {ret => $rsp});
$tags = undef;
}
$timeout = undef;
}
else {
_calc_check_delta unless $no_wait;
}
}
$r = 0;
while ($loop) {
my ($reads, $writes, $exceps) = IO::Select::select($s, undef, $s, $timeout);
for my $r (@$reads) {
my $rsp = myjsonrpc::read_json($r);
if (!defined $rsp) {
diag sprintf("THERE IS NOTHING TO READ %d %d %d", fileno($r), fileno($testfd), fileno($cfd));
$r = 1;
$loop = 0;
last;
}
if ($r == $bmwqemu::backend->{from_child}) {
myjsonrpc::send_json($backend_requester, {ret => $rsp->{rsp}});
$backend_requester = undef;
next;
}
if ($rsp->{cmd} =~ m/^backend_(.*)/) {
die "we need to implement a backend queue" if $backend_requester;
$backend_requester = $r;
my $cmd = $1;
delete $rsp->{cmd};
myjsonrpc::send_json($bmwqemu::backend->{to_child}, {cmd => $cmd, arguments => $rsp});
next;
}
if ($rsp->{cmd} eq 'set_current_test') {
$bmwqemu::backend->_send_json({cmd => 'set_serial_offset'});
$current_test_name = $rsp->{name};
myjsonrpc::send_json($r, {ret => 1});
next;
}
if ($rsp->{cmd} eq 'tests_done') {
$r = $rsp->{died};
$completed = $rsp->{completed};
CORE::close($testfd);
$testfd = undef;
kill_autotest;
$loop = 0;
next;
}
if ($rsp->{cmd} eq 'check_screen') {
$no_wait = $rsp->{no_wait} // 0;
$tags = $bmwqemu::backend->_send_json(
{
cmd => 'set_tags_to_assert',
arguments => {
mustmatch => $rsp->{mustmatch},
timeout => $rsp->{timeout},
check => $rsp->{check}}})->{tags};
next;
}
##### HTTP commands
if ($rsp->{cmd} eq 'status') {
my $result = {tags => $tags, running => $current_test_name};
$result->{interactive} = $interactive;
$result->{needinput} = $needinput;
myjsonrpc::send_json($r, $result);
next;
}
if ($rsp->{cmd} eq 'version') {
my $result = {test_git_hash => $test_git_hash, needles_git_hash => $needles_git_hash, version => $INTERFACE};
myjsonrpc::send_json($r, $result);
next;
}
if ($rsp->{cmd} eq 'interactive') {
# interactive is boolean
$interactive = $rsp->{params}->{state} ? 1 : 0;
if (!$interactive && $needinput) {
# need to continue the VM
$bmwqemu::backend->_send_json({cmd => 'retry_assert_screen'});
$needinput = 0;
$timeout = .1;
check_asserted_screen(1, $no_wait);
}
myjsonrpc::send_json($r, {interactive => $interactive});
next;
}
if ($rsp->{cmd} eq 'stop_waitforneedle') {
$bmwqemu::backend->_send_json({cmd => 'reduce_deadline'});
myjsonrpc::send_json($r, {ret => 0});
next;
}
if ($rsp->{cmd} eq 'continue_waitforneedle' || $rsp->{cmd} eq 'reload_needles') {
$needinput = 0;
$timeout = .1;
my $reload = $rsp->{cmd} eq 'reload_needles';
# tell backend to retry
$bmwqemu::backend->_send_json({cmd => 'retry_assert_screen', arguments => {reload_needles => $reload}});
# that's enough for the webui to know
myjsonrpc::send_json($r, {ret => 0});
check_asserted_screen(1, $no_wait);
next;
}
if ($rsp->{cmd} eq 'read_serial') {
# This will stop to work if we change the serialfile after the initialization because of the fork
my ($serial, $pos) = $bmwqemu::backend->{backend}->read_serial($rsp->{position});
myjsonrpc::send_json($r, {serial => $serial, position => $pos});
next;
}
die "Unknown command $rsp->{cmd}";
}
if (defined $tags && !$needinput) {
check_asserted_screen(0, $no_wait);
}
}
# don't leave the commands server open - it will no longer react anyway
# as most of it ends up in the loop above
kill_commands;
if ($testfd) {
$r = 1; # unusual shutdown
CORE::close $testfd;
kill_autotest;
}
diag "isotovideo " . ($r ? 'failed' : 'done');
my $clean_shutdown;
if (!$r) {
eval {
$clean_shutdown = $bmwqemu::backend->_send_json({cmd => 'is_shutdown'});
diag "BACKEND SHUTDOWN $clean_shutdown";
};
# don't rely on the backend in a sane state if we failed - just kill it later
eval { bmwqemu::stop_vm(); };
if ($@) {
diag "Error during stop_vm: $@";
$r = 1;
}
}
# read calculated variables from backend and tests
bmwqemu::load_vars();
# mark hard disks for upload if test finished
if (!$r && $completed && (my $nd = $bmwqemu::vars{NUMDISKS}) && ($bmwqemu::vars{BACKEND} eq 'qemu')) {
my @toextract;
for my $i (1 .. $nd) {
my $dir = 'assets_private';
my $name = $bmwqemu::vars{"STORE_HDD_$i"} || undef;
unless ($name) {
$name = $bmwqemu::vars{"PUBLISH_HDD_$i"} || undef;
$dir = 'assets_public';
}
next unless $name;
$name =~ /\.([[:alnum:]]+)$/;
my $format = $1;
push @toextract, {hdd_num => $i, name => $name, dir => $dir, format => $format};
}
if (@toextract && !$clean_shutdown) {
diag "ERROR: Machine not shut down when uploading disks!\n";
$r = 1;
}
else {
for my $asset (@toextract) {
local $@;
eval { $bmwqemu::backend->extract_assets($asset); };
if ($@) {
diag "extract assets failed: $@";
$r = 1;
}
}
}
}
END {
kill_backend;
kill_commands;
kill_autotest;
# in case of early exit, e.g. help display
$r //= 0;
print "$$: EXIT $r\n";
$? = $r;
}
# vim: set sw=4 et: