git-svnimport: Don't assume that copied files haven't changed

Don't assume that a file that SVN claims was copied from somewhere
else is bit-for-bit identical with its parent, since SVN allows
changes to copied files before they are committed.

Without this fix, such copy-modify-commit operations causes the
imported file to lack the "modify" part -- that is, we get subtle data
corruption.

Signed-off-by: Karl Hasselström <kha@treskal.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/git-svnimport.perl b/git-svnimport.perl
index 114784f..4d5371c 100755 (executable)
--- a/git-svnimport.perl
+++ b/git-svnimport.perl
@@ -616,9 +616,7 @@ sub commit {
                        }
                        if(($action->[0] eq "A") || ($action->[0] eq "R")) {
                                my $node_kind = node_kind($branch,$path,$revision);
-                               if($action->[1]) {
-                                       copy_path($revision,$branch,$path,$action->[1],$action->[2],$node_kind,\@new,\@parents);
-                               } elsif ($node_kind eq $SVN::Node::file) {
+                               if ($node_kind eq $SVN::Node::file) {
                                        my $f = get_file($revision,$branch,$path);
                                        if ($f) {
                                                push(@new,$f) if $f;
@@ -627,8 +625,15 @@ sub commit {
                                                print STDERR "$revision: $branch: could not fetch '$opath'\n";
                                        }
                                } elsif ($node_kind eq $SVN::Node::dir) {
-                                       get_ignore(\@new, \@old, $revision,
-                                                  $branch,$path);
+                                       if($action->[1]) {
+                                               copy_path($revision, $branch,
+                                                         $path, $action->[1],
+                                                         $action->[2], $node_kind,
+                                                         \@new, \@parents);
+                                       } else {
+                                               get_ignore(\@new, \@old, $revision,
+                                                          $branch, $path);
+                                       }
                                }
                        } elsif ($action->[0] eq "D") {
                                push(@old,$path);