t4022: abstract away SHA-1-specific constants

diff --git a/parse-options.c b/parse-options.c
index 125e84f98451b4eb12e9d8a6cb4da58b2d8db51e..0f7059a8ab32a624775026d7dc2289245c87c192 100644 (file)
--- a/parse-options.c
+++ b/parse-options.c
@@ -317,14 +317,16 @@ static int parse_long_opt(struct parse_opt_ctx_t *p, const char *arg,
                return get_value(p, options, all_opts, flags ^ opt_flags);
        }
 
-       if (ambiguous_option)
-               return error("Ambiguous option: %s "
+       if (ambiguous_option) {
+               error("Ambiguous option: %s "
                        "(could be --%s%s or --%s%s)",
                        arg,
                        (ambiguous_flags & OPT_UNSET) ?  "no-" : "",
                        ambiguous_option->long_name,
                        (abbrev_flags & OPT_UNSET) ?  "no-" : "",
                        abbrev_option->long_name);
+               return -3;
+       }
        if (abbrev_option)
                return get_value(p, abbrev_option, all_opts, abbrev_flags);
        return -2;
@@ -476,7 +478,6 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
                       const char * const usagestr[])
 {
        int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP);
-       int err = 0;
 
        /* we must reset ->opt, unknown short option leave it dangling */
        ctx->opt = NULL;
@@ -505,7 +506,7 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
                        ctx->opt = arg + 1;
                        switch (parse_short_opt(ctx, options)) {
                        case -1:
-                               goto show_usage_error;
+                               return PARSE_OPT_ERROR;
                        case -2:
                                if (ctx->opt)
                                        check_typos(arg + 1, options);
@@ -518,7 +519,7 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
                        while (ctx->opt) {
                                switch (parse_short_opt(ctx, options)) {
                                case -1:
-                                       goto show_usage_error;
+                                       return PARSE_OPT_ERROR;
                                case -2:
                                        if (internal_help && *ctx->opt == 'h')
                                                goto show_usage;
@@ -550,9 +551,11 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
                        goto show_usage;
                switch (parse_long_opt(ctx, arg + 2, options)) {
                case -1:
-                       goto show_usage_error;
+                       return PARSE_OPT_ERROR;
                case -2:
                        goto unknown;
+               case -3:
+                       goto show_usage;
                }
                continue;
 unknown:
@@ -563,10 +566,8 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
        }
        return PARSE_OPT_DONE;
 
- show_usage_error:
-       err = 1;
  show_usage:
-       return usage_with_options_internal(ctx, usagestr, options, 0, err);
+       return usage_with_options_internal(ctx, usagestr, options, 0, 0);
 }
 
 int parse_options_end(struct parse_opt_ctx_t *ctx)
@@ -585,6 +586,7 @@ int parse_options(int argc, const char **argv, const char *prefix,
        parse_options_start(&ctx, argc, argv, prefix, options, flags);
        switch (parse_options_step(&ctx, options, usagestr)) {
        case PARSE_OPT_HELP:
+       case PARSE_OPT_ERROR:
                exit(129);
        case PARSE_OPT_NON_OPTION:
        case PARSE_OPT_DONE: