builtin/apply: make parse_ignorewhitespace_option() return -1 instead of die()ing

To libify `git apply` functionality we have to signal errors to the
caller instead of die()ing.

To do that in a compatible manner with the rest of the error handling
in "builtin/apply.c", parse_ignorewhitespace_option() should return
-1 instead of calling die().

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 06a76f24c5293939a75dcc24d659d59c39274706..ecb1f7a536a0f3fc10b0b2616d800c2c5d5dce1f 100644 (file)
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -57,20 +57,20 @@ static int parse_whitespace_option(struct apply_state *state, const char *option
        return error(_("unrecognized whitespace option '%s'"), option);
 }
 
-static void parse_ignorewhitespace_option(struct apply_state *state,
-                                         const char *option)
+static int parse_ignorewhitespace_option(struct apply_state *state,
+                                        const char *option)
 {
        if (!option || !strcmp(option, "no") ||
            !strcmp(option, "false") || !strcmp(option, "never") ||
            !strcmp(option, "none")) {
                state->ws_ignore_action = ignore_ws_none;
-               return;
+               return 0;
        }
        if (!strcmp(option, "change")) {
                state->ws_ignore_action = ignore_ws_change;
-               return;
+               return 0;
        }
-       die(_("unrecognized whitespace ignore option '%s'"), option);
+       return error(_("unrecognized whitespace ignore option '%s'"), option);
 }
 
 static void set_default_whitespace_mode(struct apply_state *state)
@@ -4629,8 +4629,8 @@ static void init_apply_state(struct apply_state *state,
        git_apply_config();
        if (apply_default_whitespace && parse_whitespace_option(state, apply_default_whitespace))
                exit(1);
-       if (apply_default_ignorewhitespace)
-               parse_ignorewhitespace_option(state, apply_default_ignorewhitespace);
+       if (apply_default_ignorewhitespace && parse_ignorewhitespace_option(state, apply_default_ignorewhitespace))
+               exit(1);
 }
 
 static void clear_apply_state(struct apply_state *state)