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-rw-r--r--submodule.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/submodule.c b/submodule.c
index 85415d0057..392e83e0bf 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1004,3 +1004,34 @@ int merge_submodule(unsigned char result[20], const char *path,
free(merges.objects);
return 0;
}
+
+/* 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 rel_path = STRBUF_INIT;
+ const char *real_work_tree = xstrdup(real_path(work_tree));
+ FILE *fp;
+
+ /* Update gitfile */
+ strbuf_addf(&file_name, "%s/.git", work_tree);
+ fp = fopen(file_name.buf, "w");
+ if (!fp)
+ die(_("Could not create git link %s"), file_name.buf);
+ fprintf(fp, "gitdir: %s\n", relative_path(git_dir, real_work_tree,
+ &rel_path));
+ fclose(fp);
+
+ /* Update core.worktree setting */
+ strbuf_reset(&file_name);
+ strbuf_addf(&file_name, "%s/config", git_dir);
+ if (git_config_set_in_file(file_name.buf, "core.worktree",
+ relative_path(real_work_tree, git_dir,
+ &rel_path)))
+ die(_("Could not set core.worktree in %s"),
+ file_name.buf);
+
+ strbuf_release(&file_name);
+ strbuf_release(&rel_path);
+ free((void *)real_work_tree);
+}