In a later patch we'll use connect_work_tree_and_git_dir when the
directory for the gitlink file doesn't exist yet. Safely create
the directory first.

One of the two users of 'connect_work_tree_and_git_dir' already checked
for the directory being there, so we can loose that check.

Signed-off-by: Stefan Beller <sbel...@google.com>
---
 dir.c       | 32 +++++++++++++++++++++-----------
 submodule.c | 11 ++---------
 2 files changed, 23 insertions(+), 20 deletions(-)

diff --git a/dir.c b/dir.c
index 4541f9e146..6f52af7abb 100644
--- a/dir.c
+++ b/dir.c
@@ -2728,23 +2728,33 @@ void untracked_cache_add_to_index(struct index_state 
*istate,
 /* 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_)
 {
-       struct strbuf file_name = STRBUF_INIT;
+       struct strbuf gitfile_sb = STRBUF_INIT;
+       struct strbuf cfg_sb = STRBUF_INIT;
        struct strbuf rel_path = STRBUF_INIT;
-       char *git_dir = real_pathdup(git_dir_);
-       char *work_tree = real_pathdup(work_tree_);
+       char *git_dir, *work_tree;
 
-       /* Update gitfile */
-       strbuf_addf(&file_name, "%s/.git", work_tree);
-       write_file(file_name.buf, "gitdir: %s",
-                  relative_path(git_dir, work_tree, &rel_path));
+       /* Prepare .git file */
+       strbuf_addf(&gitfile_sb, "%s/.git", work_tree_);
+       if (safe_create_leading_directories_const(gitfile_sb.buf))
+               die(_("could not create directories for %s"), gitfile_sb.buf);
+
+       /* Prepare config file */
+       strbuf_addf(&cfg_sb, "%s/config", git_dir_);
+       if (safe_create_leading_directories_const(cfg_sb.buf))
+               die(_("could not create directories for %s"), cfg_sb.buf);
 
+       git_dir = real_pathdup(git_dir_);
+       work_tree = real_pathdup(work_tree_);
+
+       /* Write .git file */
+       write_file(gitfile_sb.buf, "gitdir: %s",
+                  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",
+       git_config_set_in_file(cfg_sb.buf, "core.worktree",
                               relative_path(work_tree, git_dir, &rel_path));
 
-       strbuf_release(&file_name);
+       strbuf_release(&gitfile_sb);
+       strbuf_release(&cfg_sb);
        strbuf_release(&rel_path);
        free(work_tree);
        free(git_dir);
diff --git a/submodule.c b/submodule.c
index 0e55372f37..04d185738f 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1442,8 +1442,6 @@ void absorb_git_dir_into_superproject(const char *prefix,
 
        /* Not populated? */
        if (!sub_git_dir) {
-               char *real_new_git_dir;
-               const char *new_git_dir;
                const struct submodule *sub;
 
                if (err_code == READ_GITFILE_ERR_STAT_FAILED) {
@@ -1466,13 +1464,8 @@ void absorb_git_dir_into_superproject(const char *prefix,
                sub = submodule_from_path(null_sha1, path);
                if (!sub)
                        die(_("could not lookup name for submodule '%s'"), 
path);
-               new_git_dir = git_path("modules/%s", sub->name);
-               if (safe_create_leading_directories_const(new_git_dir) < 0)
-                       die(_("could not create directory '%s'"), new_git_dir);
-               real_new_git_dir = real_pathdup(new_git_dir);
-               connect_work_tree_and_git_dir(path, real_new_git_dir);
-
-               free(real_new_git_dir);
+               connect_work_tree_and_git_dir(path,
+                       git_path("modules/%s", sub->name));
        } else {
                /* Is it already absorbed into the superprojects git dir? */
                char *real_sub_git_dir = real_pathdup(sub_git_dir);
-- 
2.12.0.rc1.16.ge4278d41a0.dirty

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