[PATCH v6 07/44] builtin/apply: make parse_whitespace_option() return -1 instead of die()ing

[Christian Couder]

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_whitespace_option() should return -1 instead
of calling die().

Signed-off-by: Christian Couder <chrisc...@tuxfamily.org>
---
 builtin/apply.c | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/builtin/apply.c b/builtin/apply.c
index 2671586..e56e754 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -27,34 +27,34 @@ static const char * const apply_usage[] = {
        NULL
 };
 
-static void parse_whitespace_option(struct apply_state *state, const char 
*option)
+static int parse_whitespace_option(struct apply_state *state, const char 
*option)
 {
        if (!option) {
                state->ws_error_action = warn_on_ws_error;
-               return;
+               return 0;
        }
        if (!strcmp(option, "warn")) {
                state->ws_error_action = warn_on_ws_error;
-               return;
+               return 0;
        }
        if (!strcmp(option, "nowarn")) {
                state->ws_error_action = nowarn_ws_error;
-               return;
+               return 0;
        }
        if (!strcmp(option, "error")) {
                state->ws_error_action = die_on_ws_error;
-               return;
+               return 0;
        }
        if (!strcmp(option, "error-all")) {
                state->ws_error_action = die_on_ws_error;
                state->squelch_whitespace_errors = 0;
-               return;
+               return 0;
        }
        if (!strcmp(option, "strip") || !strcmp(option, "fix")) {
                state->ws_error_action = correct_ws_error;
-               return;
+               return 0;
        }
-       die(_("unrecognized whitespace option '%s'"), option);
+       return error(_("unrecognized whitespace option '%s'"), option);
 }
 
 static void parse_ignorewhitespace_option(struct apply_state *state,
@@ -4579,7 +4579,8 @@ static int option_parse_whitespace(const struct option 
*opt,
 {
        struct apply_state *state = opt->value;
        state->whitespace_option = arg;
-       parse_whitespace_option(state, arg);
+       if (parse_whitespace_option(state, arg))
+               exit(1);
        return 0;
 }
 
@@ -4613,8 +4614,8 @@ static void init_apply_state(struct apply_state *state,
        strbuf_init(&state->root, 0);
 
        git_apply_config();
-       if (apply_default_whitespace)
-               parse_whitespace_option(state, apply_default_whitespace);
+       if (apply_default_whitespace && parse_whitespace_option(state, 
apply_default_whitespace))
+               exit(1);
        if (apply_default_ignorewhitespace)
                parse_ignorewhitespace_option(state, 
apply_default_ignorewhitespace);
 }
-- 
2.9.0.rc2.362.g3cd93d0

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