diff -r de0a25512844 -r 7d7ca3f05f25 lib/SI/tools.pm
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/SI/tools.pm	Wed Jan 20 21:52:01 2010 +0100
@@ -0,0 +1,54 @@
+package SI::tools;
+
+use if $ENV{DEBUG} ~~ /tools|all/ => "Smart::Comments";
+
+use strict;
+use warnings;
+use File::Find;
+use Data::Dumper;
+use base "Exporter";
+
+our @EXPORT = qw(&run &verbose &find_by_devid &cat &barf);
+
+sub run(@) {
+    system(@_);
+    die "$_[0] failed with exit code " . ($? >> 8) . "\n"
+      if $?;
+}
+
+sub barf(@) { die Dumper @_ }
+
+sub cat($) {
+    my $fh = new IO::File $_[0]
+      or die "Can't open $_[0]: $!\n";
+    return (<$fh>) if wantarray;
+    return join "", <$fh>;
+}
+
+my $last = "\n";
+
+sub verbose(@) {
+    print $last eq "\n" ? "" : " "
+      if not(@_ == 1 and length($_[0]) == 1);
+    print @_;
+    $last = substr($_[-1], -1, 1);
+}
+
+sub find_by_devid($$) {
+    my ($dir, $id) = @_;
+    my @found;
+    find(
+        sub {
+            push @found, $File::Find::name if (stat)[6] == $id;
+            return;
+        },
+        $dir
+    );
+    die "ERR: found more than one alias (@found) for $id\n" if @found > 1;
+    die "ERR: found no alias for $id\n" if not @found;
+    return $found[0];
+}
+
+1;
+
+# vim:sts=4 sw=4 aw ai si: