diff options
Diffstat (limited to 'parse-options.c')
| -rw-r--r-- | parse-options.c | 118 |
1 files changed, 108 insertions, 10 deletions
diff --git a/parse-options.c b/parse-options.c index fca7159646..7db84227ab 100644 --- a/parse-options.c +++ b/parse-options.c @@ -317,14 +317,16 @@ is_abbreviated: 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; @@ -425,6 +427,98 @@ void parse_options_start(struct parse_opt_ctx_t *ctx, parse_options_check(options); } +static void show_negated_gitcomp(const struct option *opts, int nr_noopts) +{ + int printed_dashdash = 0; + + for (; opts->type != OPTION_END; opts++) { + int has_unset_form = 0; + const char *name; + + if (!opts->long_name) + continue; + if (opts->flags & (PARSE_OPT_HIDDEN | PARSE_OPT_NOCOMPLETE)) + continue; + if (opts->flags & PARSE_OPT_NONEG) + continue; + + switch (opts->type) { + case OPTION_STRING: + case OPTION_FILENAME: + case OPTION_INTEGER: + case OPTION_MAGNITUDE: + case OPTION_CALLBACK: + case OPTION_BIT: + case OPTION_NEGBIT: + case OPTION_COUNTUP: + case OPTION_SET_INT: + has_unset_form = 1; + break; + default: + break; + } + if (!has_unset_form) + continue; + + if (skip_prefix(opts->long_name, "no-", &name)) { + if (nr_noopts < 0) + printf(" --%s", name); + } else if (nr_noopts >= 0) { + if (nr_noopts && !printed_dashdash) { + printf(" --"); + printed_dashdash = 1; + } + printf(" --no-%s", opts->long_name); + nr_noopts++; + } + } +} + +static int show_gitcomp(struct parse_opt_ctx_t *ctx, + const struct option *opts) +{ + const struct option *original_opts = opts; + int nr_noopts = 0; + + for (; opts->type != OPTION_END; opts++) { + const char *suffix = ""; + + if (!opts->long_name) + continue; + if (opts->flags & (PARSE_OPT_HIDDEN | PARSE_OPT_NOCOMPLETE)) + continue; + + switch (opts->type) { + case OPTION_GROUP: + continue; + case OPTION_STRING: + case OPTION_FILENAME: + case OPTION_INTEGER: + case OPTION_MAGNITUDE: + case OPTION_CALLBACK: + if (opts->flags & PARSE_OPT_NOARG) + break; + if (opts->flags & PARSE_OPT_OPTARG) + break; + if (opts->flags & PARSE_OPT_LASTARG_DEFAULT) + break; + suffix = "="; + break; + default: + break; + } + if (opts->flags & PARSE_OPT_COMP_ARG) + suffix = "="; + if (starts_with(opts->long_name, "no-")) + nr_noopts++; + printf(" --%s%s", opts->long_name, suffix); + } + show_negated_gitcomp(original_opts, -1); + show_negated_gitcomp(original_opts, nr_noopts); + fputc('\n', stdout); + exit(0); +} + static int usage_with_options_internal(struct parse_opt_ctx_t *, const char * const *, const struct option *, int, int); @@ -434,7 +528,6 @@ 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; @@ -455,11 +548,15 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, if (internal_help && ctx->total == 1 && !strcmp(arg + 1, "h")) goto show_usage; + /* lone --git-completion-helper is asked by git-completion.bash */ + if (ctx->total == 1 && !strcmp(arg + 1, "-git-completion-helper")) + return show_gitcomp(ctx, options); + if (arg[1] != '-') { 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); @@ -472,7 +569,7 @@ 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; @@ -504,9 +601,11 @@ 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: @@ -517,15 +616,13 @@ unknown: } 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) { - memmove(ctx->out + ctx->cpidx, ctx->argv, ctx->argc * sizeof(*ctx->out)); + MOVE_ARRAY(ctx->out + ctx->cpidx, ctx->argv, ctx->argc); ctx->out[ctx->cpidx + ctx->argc] = NULL; return ctx->cpidx + ctx->argc; } @@ -539,6 +636,7 @@ 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: |