avoid clobbering origsub if checkconfig runs more than once

[git.ikiwiki.info.git] / IkiWiki / Plugin / websetup.pm

diff --git a/IkiWiki/Plugin/websetup.pm b/IkiWiki/Plugin/websetup.pm
index 95d044c08a5d46ada18308d6448efebede1732af..9edd22d2625ddf474fc419d84b6bc544ba6c3270 100644 (file)
--- a/IkiWiki/Plugin/websetup.pm
+++ b/IkiWiki/Plugin/websetup.pm
@@ -403,6 +403,7 @@ sub showform ($$) {
                        $form->reset(0); # doesn't really make sense here
                }
                else {
+                       my $oldsetup=readfile($config{setupfile});
                        IkiWiki::Setup::dump($config{setupfile});
 
                        IkiWiki::saveindex();
@@ -426,16 +427,21 @@ sub showform ($$) {
                                        "-refresh", "-wrappers", "-v");
                        }
 
+                       close STDERR;
+                       open(STDERR, ">&STDOUT");
                        my $ret=system(@command);
-                       print "\n<pre>";
+                       print "\n<\/pre>";
                        if ($ret != 0) {
                                print '<p class="error">'.
-                                       sprintf(gettext("<p class=\"error\">Error: %s exited nonzero (%s)"),
+                                       sprintf(gettext("Error: %s exited nonzero (%s). Discarding setup changes."),
                                                join(" ", @command), $ret).
                                        '</p>';
+                               open(OUT, ">", $config{setupfile}) || error("$config{setupfile}: $!");
+                               print OUT $oldsetup;
+                               close OUT;
                        }
 
-                       print $tail;                    
+                       print $tail;
                        exit 0;
                }
        }