builtin/apply: move 'whitespace_option' into 'struct apply_state'

This will enable further refactoring, and it is more coherent and
simpler if all the option_parse_*() functions are passed a
'struct apply_state' instance in opt->value.

Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/apply.c b/builtin/apply.c
index 44717b2fdf65e318e63a8dc9b4a94bd2d5c89f7d..78205f80536b7c658d216f1b439e0f8fffaf445c 100644 (file)
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -61,6 +61,7 @@ struct apply_state {
        int has_include;
 
        /* These control whitespace errors */
+       const char *whitespace_option;
        int whitespace_error;
 };
 
@@ -4619,9 +4620,9 @@ static int option_parse_space_change(const struct option *opt,
 static int option_parse_whitespace(const struct option *opt,
                                   const char *arg, int unset)
 {
-       const char **whitespace_option = opt->value;
+       struct apply_state *state = opt->value;
 
-       *whitespace_option = arg;
+       state->whitespace_option = arg;
        parse_whitespace_option(arg);
        return 0;
 }
@@ -4670,8 +4671,6 @@ int cmd_apply(int argc, const char **argv, const char *prefix)
        int read_stdin = 1;
        struct apply_state state;
 
-       const char *whitespace_option = NULL;
-
        struct option builtin_apply_options[] = {
                { OPTION_CALLBACK, 0, "exclude", &state, N_("path"),
                        N_("don't apply changes matching the given path"),
@@ -4711,7 +4710,7 @@ int cmd_apply(int argc, const char **argv, const char *prefix)
                        N_("paths are separated with NUL character"), '\0'),
                OPT_INTEGER('C', NULL, &state.p_context,
                                N_("ensure at least <n> lines of context match")),
-               { OPTION_CALLBACK, 0, "whitespace", &whitespace_option, N_("action"),
+               { OPTION_CALLBACK, 0, "whitespace", &state, N_("action"),
                        N_("detect new or modified lines that have whitespace errors"),
                        0, option_parse_whitespace },
                { OPTION_CALLBACK, 0, "ignore-space-change", NULL, NULL,
@@ -4786,11 +4785,11 @@ int cmd_apply(int argc, const char **argv, const char *prefix)
                if (fd < 0)
                        die_errno(_("can't open patch '%s'"), arg);
                read_stdin = 0;
-               set_default_whitespace_mode(&state, whitespace_option);
+               set_default_whitespace_mode(&state, state.whitespace_option);
                errs |= apply_patch(&state, fd, arg, options);
                close(fd);
        }
-       set_default_whitespace_mode(&state, whitespace_option);
+       set_default_whitespace_mode(&state, state.whitespace_option);
        if (read_stdin)
                errs |= apply_patch(&state, 0, "<stdin>", options);
        if (state.whitespace_error) {