Re: A bug with "git svn show-externals"

[Eric Wong]

Tao Peng <peng...@me.com> wrote:
> Hi there,
> 
> I met a bug of the "git svn show-externals” command.  If a subdirectory item 
> has a svn:externals property, and the format of the property is “URL first, 
> then the local path”, running "git svn show-externals” command at the root 
> level will result in an unusable output.
> 
> Example:
> $ svn pg svn:externals svn+ssh://src.foo.com/svn/ref/English.lproj/
> svn+ssh://src.foo.com/svn/orig/trunk/Resources/English.lproj/Localizable.strings
>  Localizable.strings

+Cc Vineet who originally implemented this 9 years ago

I've never used externals much, but I guess it's common for
externals to be a full URL and not merely a relative path
to somewhere within the same SVN repo.

> $ git svn show-externals
> # /English.lproj/
> /English.lproj/svn+ssh://src.foo.com/svn/orig/trunk/Resources/English.lproj/Localizable.strings
>  Localizable.strings

> 
> This bug is preventing my script from correctly finishing the svn-to-git repo 
> migration work. Does anyone know a workaround to this bug?

Can you try the following change to ignore path prefixing for
full URLs?

diff --git a/git-svn.perl b/git-svn.perl
index 4d41d22..ced665a 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -1303,7 +1303,9 @@ sub cmd_show_externals {
                my $s = $props->{'svn:externals'} or return;
                $s =~ s/[\r\n]+/\n/g;
                chomp $s;
-               $s =~ s#^#$path#gm;
+               if ($s !~ m#^[a-z\+]+://#i) {
+                       $s =~ s#^#$path#gm;
+               }
                print STDOUT "$s\n";
        });
 }