Remove all logic from get_git_work_tree()

This logic is now only used by cmd_init_db(). setup_* functions do not
rely on it any more. Move all the logic to cmd_init_db() and turn
get_git_work_tree() into a simple function.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 8 insertions, 24 deletions

diff --git a/environment.c b/environment.c
index d811049a7d..149c132304 100644
--- a/environment.c
+++ b/environment.c
@@ -137,36 +137,20 @@ static int git_work_tree_initialized;
  */
 void set_git_work_tree(const char *new_work_tree)
 {
+	if (git_work_tree_initialized) {
+		new_work_tree = make_absolute_path(new_work_tree);
+		if (strcmp(new_work_tree, work_tree))
+			die("internal error: work tree has already been set\n"
+			    "Current worktree: %s\nNew worktree: %s",
+			    work_tree, new_work_tree);
+		return;
+	}
 	git_work_tree_initialized = 1;
-	free(work_tree);
 	work_tree = xstrdup(make_absolute_path(new_work_tree));
-	is_bare_repository_cfg = 0;
 }
 
 const char *get_git_work_tree(void)
 {
-	if (startup_info && !startup_info->setup_explicit) {
-		if (is_bare_repository_cfg == 1)
-			return NULL;
-		if (work_tree)
-			is_bare_repository_cfg = 0;
-		return work_tree;
-	}
-
-	if (!git_work_tree_initialized) {
-		work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
-		/* core.bare = true overrides implicit and config work tree */
-		if (!work_tree && is_bare_repository_cfg < 1) {
-			work_tree = git_work_tree_cfg;
-			/* make_absolute_path also normalizes the path */
-			if (work_tree && !is_absolute_path(work_tree))
-				work_tree = xstrdup(make_absolute_path(git_path("%s", work_tree)));
-		} else if (work_tree)
-			work_tree = xstrdup(make_absolute_path(work_tree));
-		git_work_tree_initialized = 1;
-		if (work_tree)
-			is_bare_repository_cfg = 0;
-	}
 	return work_tree;
 }