Re: git-svn failure when symlink added in svn

Seth Falcon [off-list ref] wrote:

A few weeks ago I reported a symlink related error with git-svn and
I've now had a chance to track down a few more details.  The trigger
seems to be if a file is removed from svn and then later added as a
symlink.  The error I get is:

  error: git-checkout-index: unable to create symlink foo.txt (Invalid argument)

This is from the call to symlink(new, path) in entry.c and it seems
that new is ''.

I can't reproduce it on Linux with ext3.  I translated your recipe into
a test script in the patch below.  Anybody familiar with OSX and/or HFS
know if there's a workaround or fix for this?

From: Eric Wong <redacted>
Date: Sat, 14 Apr 2007 13:03:24 -0700
Subject: [PATCH] git-svn: add test to handle conversion from file to symlink

This does not trigger any failures on my Linux machine with ext3,
but it may fail on OSX and/or HFS.

This test is based on a bug report by Seth Falcon:
  http://permalink.gmane.org/gmane.comp.version-control.git/44445

Signed-off-by: Eric Wong <redacted>
---
 t/t9112-git-svn-file-to-symlink.sh |   36 ++++++++++++++++++++++++++++++++++++
 1 files changed, 36 insertions(+), 0 deletions(-)
 create mode 100755 t/t9112-git-svn-file-to-symlink.sh

diff --git a/t/t9112-git-svn-file-to-symlink.sh b/t/t9112-git-svn-file-to-symlink.sh
new file mode 100755
index 0000000..f94310f
--- /dev/null
+++ b/t/t9112-git-svn-file-to-symlink.sh

@@ -0,0 +1,36 @@
+#!/bin/sh
+# Copyright (c) 2007 Eric Wong
+test_description='git-svn file to symlink'
+. ./lib-git-svn.sh
+
+test_expect_success 'create file in svn repository' "
+	svn co '$svnrepo' svn &&
+	cd svn &&
+		echo 123 > foo.txt &&
+		svn add foo.txt &&
+		svn commit -m 'add a file'
+		cd ..
+	"
+
+test_expect_success 'clone with git-svn' "pwd && git svn clone '$svnrepo' git"
+
+test_expect_success 'remove and add file as symlink in svn' "
+	cd svn &&
+		echo 123 > bar.txt &&
+		svn add bar.txt &&
+		svn commit -m 'add bar' &&
+		svn rm foo.txt &&
+		svn commit -m 'remove foo' &&
+		ln -s bar.txt foo.txt &&
+		svn add foo.txt &&
+		svn ci -m 'add foo as symlink'
+		cd ..
+	"
+
+test_expect_success 'rebase in git-svn' "
+	cd git &&
+		git svn rebase
+		cd ..
+	"
+
+test_done

-- 
Eric Wong