better error messages from pipethrough_*

[ypp-sc-tools.web-live.git] / pctb / Commods.pm

diff --git a/pctb/Commods.pm b/pctb/Commods.pm
index 183eb9655607aaa5044d28c25b7c30e7e8241925..d9a2a948155c314692a9c83d46fe7daeea7cfa09 100644 (file)
--- a/pctb/Commods.pm
+++ b/pctb/Commods.pm
@@ -206,14 +206,14 @@ sub pipethrough_run_along ($$$@) {
     if (!$child) {
        open STDIN, "<&", $tf;
        &$childprep() if defined $childprep;
-       exec $cmd @a; die $!;
+       exec $cmd @a; die "@a $!";
     }
     return $fh;
 }
-sub pipethrough_run_finish ($) {
-    my ($fh)= @_;
+sub pipethrough_run_finish ($$) {
+    my ($fh, $what)= @_;
     $fh->error and die $!;
-    close $fh or die "$! $?";  die $? if $?;
+    close $fh or die "$what $! $?";  die $? if $?;
 }
 
 sub pipethrough_run ($$$@) {
@@ -222,7 +222,7 @@ sub pipethrough_run ($$$@) {
     my $r;
     { undef $/; $!=0; $r= <$pt>; }
     defined $r or die $!;
-    pipethrough_run_finish($pt);
+    pipethrough_run_finish($pt, "@a");
     return $r;
 }
 sub pipethrough_run_gzip ($) {