The current caller of connect_work_tree_and_git_dir passes
an absolute path for the `git_dir` parameter. In the future patch
we will also pass in relative path for `git_dir`. Extend the functionality
of connect_work_tree_and_git_dir to take relative paths for parameters.

We could work around this in the future patch by computing the absolute
path for the git_dir in the calling site, however accepting relative
paths for either parameter makes the API for this function much harder
to misuse.

Signed-off-by: Stefan Beller <sbel...@google.com>
---
 submodule.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/submodule.c b/submodule.c
index 6f7d883de9..d4f7afe2f1 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1223,27 +1223,28 @@ int merge_submodule(unsigned char result[20], const 
char *path,
 }
 
 /* Update gitfile and core.worktree setting to connect work tree and git dir */
-void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir)
+void connect_work_tree_and_git_dir(const char *work_tree_, const char 
*git_dir_)
 {
        struct strbuf file_name = STRBUF_INIT;
        struct strbuf rel_path = STRBUF_INIT;
-       const char *real_work_tree = xstrdup(real_path(work_tree));
+       char *git_dir = xstrdup(real_path(git_dir_));
+       char *work_tree = xstrdup(real_path(work_tree_));
 
        /* Update gitfile */
        strbuf_addf(&file_name, "%s/.git", work_tree);
        write_file(file_name.buf, "gitdir: %s",
-                  relative_path(git_dir, real_work_tree, &rel_path));
+                  relative_path(git_dir, work_tree, &rel_path));
 
        /* Update core.worktree setting */
        strbuf_reset(&file_name);
        strbuf_addf(&file_name, "%s/config", git_dir);
        git_config_set_in_file(file_name.buf, "core.worktree",
-                              relative_path(real_work_tree, git_dir,
-                                            &rel_path));
+                              relative_path(work_tree, git_dir, &rel_path));
 
        strbuf_release(&file_name);
        strbuf_release(&rel_path);
-       free((void *)real_work_tree);
+       free(work_tree);
+       free(git_dir);
 }
 
 int parallel_submodules(void)
-- 
2.11.0.rc2.49.ge1f3b0c.dirty

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