1 files changed, 12 insertions, 0 deletions
diff --git a/cache.h b/cache.h
index 3c6b67741..c1fe67ffc 100644
--- a/cache.h
+++ b/cache.h
@@ -366,6 +366,18 @@ static inline enum object_type object_type(unsigned int mode)
 #define GIT_NOTES_REWRITE_MODE_ENVIRONMENT "GIT_NOTES_REWRITE_MODE"
 
 /*
+ * This environment variable is expected to contain a boolean indicating
+ * whether we should or should not treat:
+ *
+ *   GIT_DIR=foo.git git ...
+ *
+ * as if GIT_WORK_TREE=. was given. It's not expected that users will make use
+ * of this, but we use it internally to communicate to sub-processes that we
+ * are in a bare repo. If not set, defaults to true.
+ */
+#define GIT_IMPLICIT_WORK_TREE_ENVIRONMENT "GIT_IMPLICIT_WORK_TREE"
+
+/*
  * Repository-local GIT_* environment variables; these will be cleared
  * when git spawns a sub-process that runs inside another repository.
  * The array is NULL-terminated, which makes it easy to pass in the "env"