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package MJB::Backend::Role::SystemCommand;
use Moo::Role;
use Storable qw( dclone );
use IPC::Run3 qw( run3 );
sub system_command {
my ( $self, $cmd, $settings ) = @_;
$settings ||= {};
# Change the directory, if requested.
if ( $settings->{chdir} ) {
# Throw an error if that directory doesn't exist.
die "Error: directory " . $settings->{chdir} . "doesn't exist."
unless -d $settings->{chdir};
# Change to that directory, or die with error.
chdir $settings->{chdir}
or die "Failed to chdir to " . $settings->{chdir} . ": $!";
$settings->{return_chdir} = getcwd();
}
# Mask values we don't want exposed in the logs.
my $masked_cmd = dclone($cmd);
if ( ref $settings->{mask} eq 'HASH' ) {
foreach my $key ( keys %{$settings->{mask}} ) {
my $value = $settings->{mask}{$key};
$masked_cmd = [ map { s/\Q$key\E/$value/g; $_ } @{$masked_cmd} ];
}
}
# Log the lines
my ( $out, $err );
my $ret = run3( $cmd, \undef, sub {
chomp $_;
# Mask values we don't want exposed in the logs.
if ( ref $settings->{mask} eq 'HASH' ) {
foreach my $key ( keys %{$settings->{mask}} ) {
my $value = $settings->{mask}{$key};
s/\Q$key\E/$value/g;
}
}
$out .= "$_\n";
}, sub {
chomp $_;
# Mask values we don't want exposed in the logs.
if ( ref $settings->{mask} eq 'HASH' ) {
foreach my $key ( keys %{$settings->{mask}} ) {
my $value = $settings->{mask}{$key};
s/\Q$key\E/$value/g;
}
}
$err .= "$_\n";
});
# Check stderr for errors to fail on.
if ( $settings->{fail_on_stderr} ) {
my @tests = @{$settings->{fail_on_stderr}};
while ( my $regex = shift @tests ) {
my $reason = shift @tests;
if ( $err =~ /$regex/ ) {
die $reason;
}
}
}
# Return to the directory we started in if we chdir'ed.
if ( $settings->{return_chdir} ) {
chdir $settings->{return_chdir}
or die "Failed to chdir to " . $settings->{chdir} . ": $!";
}
if ( $ENV{MJB_DEBUG} ) {
require Data::Dumper;
print Data::Dumper::Dumper({
stdout => $out,
stderr => $err,
exitno => $ret,
});
}
return {
stdout => $out,
stderr => $err,
exitno => $ret,
};
}
1;