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authorLibravatar Junio C Hamano <gitster@pobox.com>2008-05-27 23:33:22 -0700
committerLibravatar Junio C Hamano <gitster@pobox.com>2008-05-27 23:35:55 -0700
commitd683a0e00cd4734b4fab704baef1ee76205722be (patch)
tree5bd68609cb1d489f83455bda25200d4050415fd7 /git-svn.perl
parentt5100: Avoid filename "nul" (diff)
downloadtgif-d683a0e00cd4734b4fab704baef1ee76205722be.tar.xz
Git::cat_blob: allow using an empty blob to fix git-svn breakage
Recent "git-svn optimization" series introduced Git::cat_blob() subroutine whose interface was broken in that it returned the size of the blob but signalled an error by returning 0. You can never use an empty blob with such an interface. This fixes the interface to return a negative value to signal an error. Reported by Björn Steinbrink. Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'git-svn.perl')
-rwxr-xr-xgit-svn.perl4
1 files changed, 2 insertions, 2 deletions
diff --git a/git-svn.perl b/git-svn.perl
index 37976f2505..3a6eb1cb9d 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -3191,7 +3191,7 @@ sub apply_textdelta {
if ($fb->{blob}) {
print $base 'link ' if ($fb->{mode_a} == 120000);
my $size = $::_repository->cat_blob($fb->{blob}, $base);
- die "Failed to read object $fb->{blob}" unless $size;
+ die "Failed to read object $fb->{blob}" if ($size < 0);
if (defined $exp) {
seek $base, 0, 0 or croak $!;
@@ -3570,7 +3570,7 @@ sub chg_file {
$self->change_file_prop($fbat,'svn:special',undef);
}
my $size = $::_repository->cat_blob($m->{sha1_b}, $fh);
- croak "Failed to read object $m->{sha1_b}" unless $size;
+ croak "Failed to read object $m->{sha1_b}" if ($size < 0);
$fh->flush == 0 or croak $!;
seek $fh, 0, 0 or croak $!;