[PATCH] t9117: test specifying full url to git svn init -T

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According to the documentation, full URLs can be specified in the `-T`
argument to `git svn init`.  However, the canonicalization of such
arguments squashes together consecutive "/"s, which unsurprisingly
breaks http://, svn://, etc URLs.  Add a failing test case to provide
evidence of that.

On systems where Subversion provides svn_path_canonicalize but not
svn_dirent_canonicalize (Subversion 1.6 and earlier?), this test passes,
as svn_path_canonicalize doesn't mangle the consecutive "/"s.

Signed-off-by: Adam Dinwoodie <adam@xxxxxxxxxxxxx>
---

I think the bug here is in using perl/Git/SVN/Utils.pm's
`canonicalize_path` on the `-T` argument.  If it's available, that
function calls Subversion's `svn_dirent_canonicalize`.  The Subversion
code[0] makes it clear that this function is fine for relative and
absolute local paths, and for UNC paths on Windows, but it isn't
suitable for use on URLs.

[0]: https://svn.apache.org/repos/asf/subversion/trunk/subversion/include/svn_dirent_uri.h

It occurs to me that the correct "fix" here may simply be to stop
claiming support for specifying URLs as arguments to -T, and mandate
users use the `git svn init $url -T $dirent` syntax instead, but I
figured providing the failing testcase would be a good start to that
discussion regardless.

 t/t9117-git-svn-init-clone.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/t/t9117-git-svn-init-clone.sh b/t/t9117-git-svn-init-clone.sh
index a66f43c..2ba003d 100755
--- a/t/t9117-git-svn-init-clone.sh
+++ b/t/t9117-git-svn-init-clone.sh
@@ -119,4 +119,10 @@ test_expect_success 'clone with -s/-T/-b/-t and --prefix "" still works' '
        rm -f warning
        '

+test_expect_failure 'init with -T as a full url works' '
+       test ! -d project &&
+       git svn init -T "$svnrepo"/project/trunk project &&
+       rm -rf project
+       '
+
 test_done
--
2.7.0
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