sys: command: add option to not print process output to stdout

If $noprint is set, the output of the command won't be printed to stdout
of the parent process.

Fully backwards-compatible again, only takes effect if the new argument
is actually specified.

Signed-off-by: Christoph Heiss <c.heiss@proxmox.com>

diff --git a/Proxmox/Sys/Command.pm b/Proxmox/Sys/Command.pm
index 36e99c158df48fbf146b788cefc37085df62795e..d145483d7301385d661d684c1b73b9bb7714c1a5 100644 (file)
--- a/Proxmox/Sys/Command.pm
+++ b/Proxmox/Sys/Command.pm
@@ -85,8 +85,9 @@ sub syscmd {
 #           to exit early and ignore the rest of the process output.
 # * $input - Stdin contents for the spawned subprocess
 # * $noout - Whether to append any process output to the return value
+# * $noprint - Whether to print any process output to the parents stdout
 sub run_command {
-    my ($cmd, $func, $input, $noout) = @_;
+    my ($cmd, $func, $input, $noout, $noprint) = @_;
 
     my $cmdstr;
     if (!ref($cmd)) {
@@ -178,7 +179,7 @@ sub run_command {
            } elsif ($h eq $error) {
                $ostream .= $buf if !($noout || $func);
            }
-           print $buf;
+           print $buf if !$noprint;
            STDOUT->flush();
            log_info($buf);
        }