use reusable I/O utils and better error handling

diff --git a/lib/System/Introspector/Host.pm b/lib/System/Introspector/Host.pm
index 680df55..0cc0658 100644 (file)
--- a/lib/System/Introspector/Host.pm
+++ b/lib/System/Introspector/Host.pm
@@ -1,11 +1,20 @@
 package System::Introspector::Host;
 use Moo;
 
+use System::Introspector::Util qw(
+    handle_from_command
+    output_from_command
+    output_from_file
+    transform_exceptions
+);
+
 sub gather {
     my ($self) = @_;
-    return {
-        hostname => $self->_gather_hostname,
-        uname    => $self->_gather_uname_info,
+    return transform_exceptions {
+        return {
+            hostname => $self->_gather_hostname,
+            uname    => $self->_gather_uname_info,
+        };
     };
 }
 
@@ -25,7 +34,7 @@ sub _gather_uname_info {
     my %uname;
     for my $field (@UnameFields) {
         (my $option = $field) =~ s{_}{-}g;
-        my $value = `uname --$option`;
+        my $value = output_from_command [uname => "--$option"];
         chomp $value;
         $uname{ $field } = $value;
     }
@@ -34,9 +43,7 @@ sub _gather_uname_info {
 
 sub _gather_hostname {
     my ($self) = @_;
-    open my $fh, '<', '/etc/hostname'
-        or die "Unable to read /etc/hostname: $!\n";
-    my $hostname = <$fh>;
+    my $hostname = output_from_file '/etc/hostname';
     chomp $hostname;
     return $hostname;
 }