submodule-config: add subomdule config scope

Before the changes to teach git_config_source to remember scope
information submodule-config.c never needed to consider the question of
config scope.  Even though zeroing out git_config_source is still
correct and preserved the previous behavior of setting the scope to
CONFIG_SCOPE_UNKNOWN, it's better to be explicit about such situations
by explicitly setting the scope.  As none of the current config_scope
enumerations make sense we create CONFIG_SCOPE_SUBMODULE to describe the
situation.

Signed-off-by: Matthew Rogers <mattr94@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/config.h b/config.h
index 165cacb7da..fe0addb0dc 100644
--- a/config.h
+++ b/config.h
@@ -42,6 +42,7 @@ enum config_scope {
 	CONFIG_SCOPE_LOCAL,
 	CONFIG_SCOPE_WORKTREE,
 	CONFIG_SCOPE_COMMAND,
+	CONFIG_SCOPE_SUBMODULE,
 };
 const char *config_scope_name(enum config_scope scope);