config: make the config source const

The `struct git_config_source` passed to `config_with_options()` is
never modified. Let's mark it as `const` to clarify.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/config.c b/config.c
index 13cf9eeb163c2663db8cea149fc4285740fe434b..bc0c0050398d3458188c6ab909a36ba60cadd8c7 100644 (file)
--- a/config.c
+++ b/config.c
@@ -125,7 +125,7 @@ struct config_include_data {
        config_fn_t fn;
        void *data;
        const struct config_options *opts;
-       struct git_config_source *config_source;
+       const struct git_config_source *config_source;
        struct repository *repo;
 
        /*
@@ -2105,7 +2105,7 @@ static int do_git_config_sequence(const struct config_options *opts,
 }
 
 int config_with_options(config_fn_t fn, void *data,
-                       struct git_config_source *config_source,
+                       const struct git_config_source *config_source,
                        struct repository *repo,
                        const struct config_options *opts)
 {

diff --git a/config.h b/config.h
index db8b608064a881901f2f2a3f527f516a61e075d8..e66c84520b7d7542e8554be049ce4c305d2b14e2 100644 (file)
--- a/config.h
+++ b/config.h
@@ -232,7 +232,7 @@ void git_config(config_fn_t fn, void *);
  * sets `opts.respect_includes` to `1` by default.
  */
 int config_with_options(config_fn_t fn, void *,
-                       struct git_config_source *config_source,
+                       const struct git_config_source *config_source,
                        struct repository *repo,
                        const struct config_options *opts);