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authorRoman Kagan <rkagan@mail.ru>2013-12-27 12:05:15 +0400
committerEric Wong <normalperson@yhbt.net>2013-12-27 20:22:19 +0000
commit2394e94e831991348688831a384b088a424c7ace (patch)
treefdce629f7641e5367ea4819008262909c5bccc04
parent7794a680e63a2a11b73cb1194653662f2769a792 (diff)
downloadgit-2394e94e831991348688831a384b088a424c7ace.tar.gz
git-2394e94e831991348688831a384b088a424c7ace.tar.xz
git-svn: workaround for a bug in svn serf backend
Subversion serf backend in versions 1.8.5 and below has a bug(*) that the function creating the descriptor of a file change -- add_file() -- doesn't make a copy of its third argument when storing it on the returned descriptor. As a result, by the time this field is used (in transactions of file copying or renaming) it may well be released, and the memory reused. One of its possible manifestations is the svn assertion triggering on an invalid path, with a message svn_fspath__skip_ancestor: Assertion `svn_fspath__is_canonical(child_fspath)' failed. This patch works around this bug, by storing the value to be passed as the third argument to add_file() in a local variable with the same scope as the file change descriptor, making sure their lifetime is the same. * [ew: fixed in Subversion r1553376 as noted by Jonathan Nieder] Cc: Benjamin Pabst <benjamin.pabst85@gmail.com> Signed-off-by: Eric Wong <normalperson@yhbt.net> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Roman Kagan <rkagan@mail.ru>
-rw-r--r--perl/Git/SVN/Editor.pm10
1 files changed, 8 insertions, 2 deletions
diff --git a/perl/Git/SVN/Editor.pm b/perl/Git/SVN/Editor.pm
index b3bcd476d..34e8af966 100644
--- a/perl/Git/SVN/Editor.pm
+++ b/perl/Git/SVN/Editor.pm
@@ -304,8 +304,12 @@ sub C {
my ($self, $m, $deletions) = @_;
my ($dir, $file) = split_path($m->{file_b});
my $pbat = $self->ensure_path($dir, $deletions);
+ # workaround for a bug in svn serf backend (v1.8.5 and below):
+ # store third argument to ->add_file() in a local variable, to make it
+ # have the same lifetime as $fbat
+ my $upa = $self->url_path($m->{file_a});
my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
- $self->url_path($m->{file_a}), $self->{r});
+ $upa, $self->{r});
print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
$self->chg_file($fbat, $m);
$self->close_file($fbat,undef,$self->{pool});
@@ -323,8 +327,10 @@ sub R {
my ($self, $m, $deletions) = @_;
my ($dir, $file) = split_path($m->{file_b});
my $pbat = $self->ensure_path($dir, $deletions);
+ # workaround for a bug in svn serf backend, see comment in C() above
+ my $upa = $self->url_path($m->{file_a});
my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
- $self->url_path($m->{file_a}), $self->{r});
+ $upa, $self->{r});
print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
$self->apply_autoprops($file, $fbat);
$self->chg_file($fbat, $m);