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use IPC::Open3;
use Symbol qw(gensym);
$DUMMY_STDERR = gensym();
$DUMMY_STDIN = gensym();
# Run the command and ignore failures
sub unchecked_call {
system("@_")
}
# Run the command and return its output, if any ignoring failures
sub unchecked_output {
return `@_`
}
# WARNING: Do not use this for commands that will return large amounts
# of stdout or stderr -- they might block indefinitely
sub check_output {
print STDERR "Executing and gathering output: @_\n";
my $pid = open3($DUMMY_STDIN, \*PH, $DUMMY_STDERR, @_);
my $proc_output = "";
while( <PH> ) {
$proc_output .= $_;
}
waitpid($pid, 0);
# TODO: Grab signal that the process died from
my $child_exit_status = $? >> 8;
if($child_exit_status == 0) {
return $proc_output;
} else {
print STDERR "ERROR: Execution of @_ failed.\n";
exit(1);
}
}
# Based on Moses' safesystem sub
sub check_call {
print STDERR "Executing: @_\n";
system(@_);
my $exitcode = $? >> 8;
if($exitcode == 0) {
return 0;
} elsif ($? == -1) {
print STDERR "ERROR: Failed to execute: @_\n $!\n";
exit(1);
} elsif ($? & 127) {
printf STDERR "ERROR: Execution of: @_\n died with signal %d, %s coredump\n",
($? & 127), ($? & 128) ? 'with' : 'without';
exit(1);
} else {
print STDERR "Failed with exit code: $exitcode\n" if $exitcode;
exit($exitcode);
}
}
sub check_bash_call {
my @args = ( "bash", "-auxeo", "pipefail", "-c", "@_");
check_call(@args);
}
sub check_bash_output {
my @args = ( "bash", "-auxeo", "pipefail", "-c", "@_");
return check_output(@args);
}
# perl module weirdness...
return 1;
|
