diff options
Diffstat (limited to 'parse-options.c')
| -rw-r--r-- | parse-options.c | 483 |
1 files changed, 380 insertions, 103 deletions
diff --git a/parse-options.c b/parse-options.c index 125e84f984..63d6bab60c 100644 --- a/parse-options.c +++ b/parse-options.c @@ -6,6 +6,8 @@ #include "color.h" #include "utf8.h" +static int disallow_abbreviated_options; + #define OPT_SHORT 1 #define OPT_UNSET 2 @@ -20,8 +22,9 @@ int optbug(const struct option *opt, const char *reason) return error("BUG: switch '%c' %s", opt->short_name, reason); } -static int get_arg(struct parse_opt_ctx_t *p, const struct option *opt, - int flags, const char **arg) +static enum parse_opt_result get_arg(struct parse_opt_ctx_t *p, + const struct option *opt, + int flags, const char **arg) { if (p->opt) { *arg = p->opt; @@ -32,7 +35,7 @@ static int get_arg(struct parse_opt_ctx_t *p, const struct option *opt, p->argc--; *arg = *++p->argv; } else - return opterror(opt, "requires a value", flags); + return error(_("%s requires a value"), optname(opt, flags)); return 0; } @@ -44,12 +47,12 @@ static void fix_filename(const char *prefix, const char **file) *file = prefix_filename(prefix, *file); } -static int opt_command_mode_error(const struct option *opt, - const struct option *all_opts, - int flags) +static enum parse_opt_result opt_command_mode_error( + const struct option *opt, + const struct option *all_opts, + int flags) { const struct option *that; - struct strbuf message = STRBUF_INIT; struct strbuf that_name = STRBUF_INIT; /* @@ -58,7 +61,7 @@ static int opt_command_mode_error(const struct option *opt, */ for (that = all_opts; that->type != OPTION_END; that++) { if (that == opt || - that->type != OPTION_CMDMODE || + !(that->flags & PARSE_OPT_CMDMODE) || that->value != opt->value || that->defval != *(int *)opt->value) continue; @@ -67,34 +70,42 @@ static int opt_command_mode_error(const struct option *opt, strbuf_addf(&that_name, "--%s", that->long_name); else strbuf_addf(&that_name, "-%c", that->short_name); - strbuf_addf(&message, ": incompatible with %s", that_name.buf); + error(_("%s is incompatible with %s"), + optname(opt, flags), that_name.buf); strbuf_release(&that_name); - opterror(opt, message.buf, flags); - strbuf_release(&message); - return -1; + return PARSE_OPT_ERROR; } - return opterror(opt, ": incompatible with something else", flags); + return error(_("%s : incompatible with something else"), + optname(opt, flags)); } -static int get_value(struct parse_opt_ctx_t *p, - const struct option *opt, - const struct option *all_opts, - int flags) +static enum parse_opt_result get_value(struct parse_opt_ctx_t *p, + const struct option *opt, + const struct option *all_opts, + int flags) { const char *s, *arg; const int unset = flags & OPT_UNSET; int err; if (unset && p->opt) - return opterror(opt, "takes no value", flags); + return error(_("%s takes no value"), optname(opt, flags)); if (unset && (opt->flags & PARSE_OPT_NONEG)) - return opterror(opt, "isn't available", flags); + return error(_("%s isn't available"), optname(opt, flags)); if (!(flags & OPT_SHORT) && p->opt && (opt->flags & PARSE_OPT_NOARG)) - return opterror(opt, "takes no value", flags); + return error(_("%s takes no value"), optname(opt, flags)); + + /* + * Giving the same mode option twice, although unnecessary, + * is not a grave error, so let it pass. + */ + if ((opt->flags & PARSE_OPT_CMDMODE) && + *(int *)opt->value && *(int *)opt->value != opt->defval) + return opt_command_mode_error(opt, all_opts, flags); switch (opt->type) { case OPTION_LOWLEVEL_CALLBACK: - return (*(parse_opt_ll_cb *)opt->callback)(p, opt, unset); + return opt->ll_callback(p, opt, NULL, unset); case OPTION_BIT: if (unset) @@ -110,6 +121,13 @@ static int get_value(struct parse_opt_ctx_t *p, *(int *)opt->value &= ~opt->defval; return 0; + case OPTION_BITOP: + if (unset) + BUG("BITOP can't have unset form"); + *(int *)opt->value &= ~opt->extra; + *(int *)opt->value |= opt->defval; + return 0; + case OPTION_COUNTUP: if (*(int *)opt->value < 0) *(int *)opt->value = 0; @@ -120,16 +138,6 @@ static int get_value(struct parse_opt_ctx_t *p, *(int *)opt->value = unset ? 0 : opt->defval; return 0; - case OPTION_CMDMODE: - /* - * Giving the same mode option twice, although is unnecessary, - * is not a grave error, so let it pass. - */ - if (*(int *)opt->value && *(int *)opt->value != opt->defval) - return opt_command_mode_error(opt, all_opts, flags); - *(int *)opt->value = opt->defval; - return 0; - case OPTION_STRING: if (unset) *(const char **)opt->value = NULL; @@ -153,16 +161,27 @@ static int get_value(struct parse_opt_ctx_t *p, return err; case OPTION_CALLBACK: + { + const char *p_arg = NULL; + int p_unset; + if (unset) - return (*opt->callback)(opt, NULL, 1) ? (-1) : 0; - if (opt->flags & PARSE_OPT_NOARG) - return (*opt->callback)(opt, NULL, 0) ? (-1) : 0; - if (opt->flags & PARSE_OPT_OPTARG && !p->opt) - return (*opt->callback)(opt, NULL, 0) ? (-1) : 0; - if (get_arg(p, opt, flags, &arg)) + p_unset = 1; + else if (opt->flags & PARSE_OPT_NOARG) + p_unset = 0; + else if (opt->flags & PARSE_OPT_OPTARG && !p->opt) + p_unset = 0; + else if (get_arg(p, opt, flags, &arg)) return -1; - return (*opt->callback)(opt, arg, 0) ? (-1) : 0; - + else { + p_unset = 0; + p_arg = arg; + } + if (opt->callback) + return (*opt->callback)(opt, p_arg, p_unset) ? (-1) : 0; + else + return (*opt->ll_callback)(p, opt, p_arg, p_unset); + } case OPTION_INTEGER: if (unset) { *(int *)opt->value = 0; @@ -174,9 +193,13 @@ static int get_value(struct parse_opt_ctx_t *p, } if (get_arg(p, opt, flags, &arg)) return -1; + if (!*arg) + return error(_("%s expects a numerical value"), + optname(opt, flags)); *(int *)opt->value = strtol(arg, (char **)&s, 10); if (*s) - return opterror(opt, "expects a numerical value", flags); + return error(_("%s expects a numerical value"), + optname(opt, flags)); return 0; case OPTION_MAGNITUDE: @@ -191,17 +214,18 @@ static int get_value(struct parse_opt_ctx_t *p, if (get_arg(p, opt, flags, &arg)) return -1; if (!git_parse_ulong(arg, opt->value)) - return opterror(opt, - "expects a non-negative integer value with an optional k/m/g suffix", - flags); + return error(_("%s expects a non-negative integer value" + " with an optional k/m/g suffix"), + optname(opt, flags)); return 0; default: - die("should not happen, someone must be hit on the forehead"); + BUG("opt->type %d should not happen", opt->type); } } -static int parse_short_opt(struct parse_opt_ctx_t *p, const struct option *options) +static enum parse_opt_result parse_short_opt(struct parse_opt_ctx_t *p, + const struct option *options) { const struct option *all_opts = options; const struct option *numopt = NULL; @@ -228,15 +252,48 @@ static int parse_short_opt(struct parse_opt_ctx_t *p, const struct option *optio len++; arg = xmemdupz(p->opt, len); p->opt = p->opt[len] ? p->opt + len : NULL; - rc = (*numopt->callback)(numopt, arg, 0) ? (-1) : 0; + if (numopt->callback) + rc = (*numopt->callback)(numopt, arg, 0) ? (-1) : 0; + else + rc = (*numopt->ll_callback)(p, numopt, arg, 0); free(arg); return rc; } - return -2; + return PARSE_OPT_UNKNOWN; +} + +static int has_string(const char *it, const char **array) +{ + while (*array) + if (!strcmp(it, *(array++))) + return 1; + return 0; } -static int parse_long_opt(struct parse_opt_ctx_t *p, const char *arg, - const struct option *options) +static int is_alias(struct parse_opt_ctx_t *ctx, + const struct option *one_opt, + const struct option *another_opt) +{ + const char **group; + + if (!ctx->alias_groups) + return 0; + + if (!one_opt->long_name || !another_opt->long_name) + return 0; + + for (group = ctx->alias_groups; *group; group += 3) { + /* it and other are from the same family? */ + if (has_string(one_opt->long_name, group) && + has_string(another_opt->long_name, group)) + return 1; + } + return 0; +} + +static enum parse_opt_result parse_long_opt( + struct parse_opt_ctx_t *p, const char *arg, + const struct option *options) { const struct option *all_opts = options; const char *arg_end = strchrnul(arg, '='); @@ -257,17 +314,22 @@ again: if (!rest) continue; if (*rest == '=') - return opterror(options, "takes no value", flags); + return error(_("%s takes no value"), + optname(options, flags)); if (*rest) continue; + if (options->value) + *(int *)options->value = options->defval; p->out[p->cpidx++] = arg - 2; - return 0; + return PARSE_OPT_DONE; } if (!rest) { /* abbreviated? */ - if (!strncmp(long_name, arg, arg_end - arg)) { + if (!(p->flags & PARSE_OPT_KEEP_UNKNOWN) && + !strncmp(long_name, arg, arg_end - arg)) { is_abbreviated: - if (abbrev_option) { + if (abbrev_option && + !is_alias(p, abbrev_option, options)) { /* * If this is abbreviated, it is * ambiguous. So when there is no @@ -293,8 +355,7 @@ is_abbreviated: } /* negated? */ if (!starts_with(arg, "no-")) { - if (starts_with(long_name, "no-")) { - long_name += 3; + if (skip_prefix(long_name, "no-", &long_name)) { opt_flags |= OPT_UNSET; goto again; } @@ -317,17 +378,23 @@ is_abbreviated: return get_value(p, options, all_opts, flags ^ opt_flags); } - if (ambiguous_option) - return error("Ambiguous option: %s " - "(could be --%s%s or --%s%s)", + if (disallow_abbreviated_options && (ambiguous_option || abbrev_option)) + die("disallowed abbreviated or ambiguous option '%.*s'", + (int)(arg_end - arg), arg); + + 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 PARSE_OPT_HELP; + } if (abbrev_option) return get_value(p, abbrev_option, all_opts, abbrev_flags); - return -2; + return PARSE_OPT_UNKNOWN; } static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg, @@ -350,7 +417,7 @@ static void check_typos(const char *arg, const struct option *options) return; if (starts_with(arg, "no-")) { - error ("did you mean `--%s` (with two dashes ?)", arg); + error(_("did you mean `--%s` (with two dashes)?"), arg); exit(129); } @@ -358,7 +425,7 @@ static void check_typos(const char *arg, const struct option *options) if (!options->long_name) continue; if (starts_with(options->long_name, arg)) { - error ("did you mean `--%s` (with two dashes ?)", arg); + error(_("did you mean `--%s` (with two dashes)?"), arg); exit(129); } } @@ -397,6 +464,23 @@ static void parse_options_check(const struct option *opts) if ((opts->flags & PARSE_OPT_OPTARG) || !(opts->flags & PARSE_OPT_NOARG)) err |= optbug(opts, "should not accept an argument"); + break; + case OPTION_CALLBACK: + if (!opts->callback && !opts->ll_callback) + BUG("OPTION_CALLBACK needs one callback"); + if (opts->callback && opts->ll_callback) + BUG("OPTION_CALLBACK can't have two callbacks"); + break; + case OPTION_LOWLEVEL_CALLBACK: + if (!opts->ll_callback) + BUG("OPTION_LOWLEVEL_CALLBACK needs a callback"); + if (opts->callback) + BUG("OPTION_LOWLEVEL_CALLBACK needs no high level callback"); + break; + case OPTION_ALIAS: + BUG("OPT_ALIAS() should not remain at this point. " + "Are you using parse_options_step() directly?\n" + "That case is not supported yet."); default: ; /* ok. (usually accepts an argument) */ } @@ -408,30 +492,91 @@ static void parse_options_check(const struct option *opts) exit(128); } -void parse_options_start(struct parse_opt_ctx_t *ctx, - int argc, const char **argv, const char *prefix, - const struct option *options, int flags) +static void parse_options_start_1(struct parse_opt_ctx_t *ctx, + int argc, const char **argv, const char *prefix, + const struct option *options, int flags) { - memset(ctx, 0, sizeof(*ctx)); - ctx->argc = ctx->total = argc - 1; - ctx->argv = argv + 1; - ctx->out = argv; + ctx->argc = argc; + ctx->argv = argv; + if (!(flags & PARSE_OPT_ONE_SHOT)) { + ctx->argc--; + ctx->argv++; + } + ctx->total = ctx->argc; + ctx->out = argv; ctx->prefix = prefix; ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0); ctx->flags = flags; if ((flags & PARSE_OPT_KEEP_UNKNOWN) && - (flags & PARSE_OPT_STOP_AT_NON_OPTION)) - die("STOP_AT_NON_OPTION and KEEP_UNKNOWN don't go together"); + (flags & PARSE_OPT_STOP_AT_NON_OPTION) && + !(flags & PARSE_OPT_ONE_SHOT)) + BUG("STOP_AT_NON_OPTION and KEEP_UNKNOWN don't go together"); + if ((flags & PARSE_OPT_ONE_SHOT) && + (flags & PARSE_OPT_KEEP_ARGV0)) + BUG("Can't keep argv0 if you don't have it"); parse_options_check(options); } -/* - * TODO: we are not completing the --no-XXX form yet because there are - * many options that do not suppress it properly. - */ -static int show_gitcomp(struct parse_opt_ctx_t *ctx, - const struct option *opts) +void parse_options_start(struct parse_opt_ctx_t *ctx, + int argc, const char **argv, const char *prefix, + const struct option *options, int flags) +{ + memset(ctx, 0, sizeof(*ctx)); + parse_options_start_1(ctx, argc, argv, prefix, options, flags); +} + +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(const struct option *opts) { + const struct option *original_opts = opts; + int nr_noopts = 0; + for (; opts->type != OPTION_END; opts++) { const char *suffix = ""; @@ -461,10 +606,91 @@ static int show_gitcomp(struct parse_opt_ctx_t *ctx, } 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); + return PARSE_OPT_COMPLETE; +} + +/* + * Scan and may produce a new option[] array, which should be used + * instead of the original 'options'. + * + * Right now this is only used to preprocess and substitute + * OPTION_ALIAS. + */ +static struct option *preprocess_options(struct parse_opt_ctx_t *ctx, + const struct option *options) +{ + struct option *newopt; + int i, nr, alias; + int nr_aliases = 0; + + for (nr = 0; options[nr].type != OPTION_END; nr++) { + if (options[nr].type == OPTION_ALIAS) + nr_aliases++; + } + + if (!nr_aliases) + return NULL; + + ALLOC_ARRAY(newopt, nr + 1); + COPY_ARRAY(newopt, options, nr + 1); + + /* each alias has two string pointers and NULL */ + CALLOC_ARRAY(ctx->alias_groups, 3 * (nr_aliases + 1)); + + for (alias = 0, i = 0; i < nr; i++) { + int short_name; + const char *long_name; + const char *source; + int j; + + if (newopt[i].type != OPTION_ALIAS) + continue; + + short_name = newopt[i].short_name; + long_name = newopt[i].long_name; + source = newopt[i].value; + + if (!long_name) + BUG("An alias must have long option name"); + + for (j = 0; j < nr; j++) { + const char *name = options[j].long_name; + + if (!name || strcmp(name, source)) + continue; + + if (options[j].type == OPTION_ALIAS) + BUG("No please. Nested aliases are not supported."); + + /* + * NEEDSWORK: this is a bit inconsistent because + * usage_with_options() on the original options[] will print + * help string as "alias of %s" but "git cmd -h" will + * print the original help string. + */ + memcpy(newopt + i, options + j, sizeof(*newopt)); + newopt[i].short_name = short_name; + newopt[i].long_name = long_name; + break; + } + + if (j == nr) + BUG("could not find source option '%s' of alias '%s'", + source, newopt[i].long_name); + ctx->alias_groups[alias * 3 + 0] = newopt[i].long_name; + ctx->alias_groups[alias * 3 + 1] = options[j].long_name; + ctx->alias_groups[alias * 3 + 2] = NULL; + alias++; + } + + return newopt; } static int usage_with_options_internal(struct parse_opt_ctx_t *, @@ -476,7 +702,6 @@ 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; @@ -484,6 +709,10 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, for (; ctx->argc; ctx->argc--, ctx->argv++) { const char *arg = ctx->argv[0]; + if (ctx->flags & PARSE_OPT_ONE_SHOT && + ctx->argc != ctx->total) + break; + if (*arg != '-' || !arg[1]) { if (parse_nodash_opt(ctx, arg, options) == 0) continue; @@ -499,27 +728,33 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, /* 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); + return show_gitcomp(options); if (arg[1] != '-') { ctx->opt = arg + 1; switch (parse_short_opt(ctx, options)) { - case -1: - goto show_usage_error; - case -2: + case PARSE_OPT_ERROR: + return PARSE_OPT_ERROR; + case PARSE_OPT_UNKNOWN: if (ctx->opt) check_typos(arg + 1, options); if (internal_help && *ctx->opt == 'h') goto show_usage; goto unknown; + case PARSE_OPT_NON_OPTION: + case PARSE_OPT_HELP: + case PARSE_OPT_COMPLETE: + BUG("parse_short_opt() cannot return these"); + case PARSE_OPT_DONE: + break; } if (ctx->opt) check_typos(arg + 1, options); while (ctx->opt) { switch (parse_short_opt(ctx, options)) { - case -1: - goto show_usage_error; - case -2: + case PARSE_OPT_ERROR: + return PARSE_OPT_ERROR; + case PARSE_OPT_UNKNOWN: if (internal_help && *ctx->opt == 'h') goto show_usage; @@ -531,12 +766,19 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, ctx->argv[0] = xstrdup(ctx->opt - 1); *(char *)ctx->argv[0] = '-'; goto unknown; + case PARSE_OPT_NON_OPTION: + case PARSE_OPT_COMPLETE: + case PARSE_OPT_HELP: + BUG("parse_short_opt() cannot return these"); + case PARSE_OPT_DONE: + break; } } continue; } - if (!arg[2]) { /* "--" */ + if (!arg[2] /* "--" */ || + !strcmp(arg + 2, "end-of-options")) { if (!(ctx->flags & PARSE_OPT_KEEP_DASHDASH)) { ctx->argc--; ctx->argv++; @@ -549,13 +791,22 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, if (internal_help && !strcmp(arg + 2, "help")) goto show_usage; switch (parse_long_opt(ctx, arg + 2, options)) { - case -1: - goto show_usage_error; - case -2: + case PARSE_OPT_ERROR: + return PARSE_OPT_ERROR; + case PARSE_OPT_UNKNOWN: goto unknown; + case PARSE_OPT_HELP: + goto show_usage; + case PARSE_OPT_NON_OPTION: + case PARSE_OPT_COMPLETE: + BUG("parse_long_opt() cannot return these"); + case PARSE_OPT_DONE: + break; } continue; unknown: + if (ctx->flags & PARSE_OPT_ONE_SHOT) + break; if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN)) return PARSE_OPT_UNKNOWN; ctx->out[ctx->cpidx++] = ctx->argv[0]; @@ -563,14 +814,15 @@ 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) { + if (ctx->flags & PARSE_OPT_ONE_SHOT) + return ctx->total - ctx->argc; + MOVE_ARRAY(ctx->out + ctx->cpidx, ctx->argv, ctx->argc); ctx->out[ctx->cpidx + ctx->argc] = NULL; return ctx->cpidx + ctx->argc; @@ -581,34 +833,48 @@ int parse_options(int argc, const char **argv, const char *prefix, int flags) { struct parse_opt_ctx_t ctx; + struct option *real_options; - parse_options_start(&ctx, argc, argv, prefix, options, flags); + disallow_abbreviated_options = + git_env_bool("GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS", 0); + + memset(&ctx, 0, sizeof(ctx)); + real_options = preprocess_options(&ctx, options); + if (real_options) + options = real_options; + parse_options_start_1(&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_COMPLETE: + exit(0); case PARSE_OPT_NON_OPTION: case PARSE_OPT_DONE: break; default: /* PARSE_OPT_UNKNOWN */ if (ctx.argv[0][1] == '-') { - error("unknown option `%s'", ctx.argv[0] + 2); + error(_("unknown option `%s'"), ctx.argv[0] + 2); } else if (isascii(*ctx.opt)) { - error("unknown switch `%c'", *ctx.opt); + error(_("unknown switch `%c'"), *ctx.opt); } else { - error("unknown non-ascii option in string: `%s'", + error(_("unknown non-ascii option in string: `%s'"), ctx.argv[0]); } usage_with_options(usagestr, options); } precompose_argv(argc, argv); + free(real_options); + free(ctx.alias_groups); return parse_options_end(&ctx); } static int usage_argh(const struct option *opts, FILE *outfile) { const char *s; - int literal = (opts->flags & PARSE_OPT_LITERAL_ARGHELP) || !opts->argh; + int literal = (opts->flags & PARSE_OPT_LITERAL_ARGHELP) || + !opts->argh || !!strpbrk(opts->argh, "()<>[]|"); if (opts->flags & PARSE_OPT_OPTARG) if (opts->long_name) s = literal ? "[=%s]" : "[=<%s>]"; @@ -695,6 +961,12 @@ static int usage_with_options_internal(struct parse_opt_ctx_t *ctx, fputc('\n', outfile); pad = USAGE_OPTS_WIDTH; } + if (opts->type == OPTION_ALIAS) { + fprintf(outfile, "%*s", pad + USAGE_GAP, ""); + fprintf_ln(outfile, _("alias of --%s"), + (const char *)opts->value); + continue; + } fprintf(outfile, "%*s%s\n", pad + USAGE_GAP, "", _(opts->help)); } fputc('\n', outfile); @@ -720,12 +992,17 @@ void NORETURN usage_msg_opt(const char *msg, usage_with_options(usagestr, options); } -#undef opterror -int opterror(const struct option *opt, const char *reason, int flags) +const char *optname(const struct option *opt, int flags) { + static struct strbuf sb = STRBUF_INIT; + + strbuf_reset(&sb); if (flags & OPT_SHORT) - return error("switch `%c' %s", opt->short_name, reason); - if (flags & OPT_UNSET) - return error("option `no-%s' %s", opt->long_name, reason); - return error("option `%s' %s", opt->long_name, reason); + strbuf_addf(&sb, "switch `%c'", opt->short_name); + else if (flags & OPT_UNSET) + strbuf_addf(&sb, "option `no-%s'", opt->long_name); + else + strbuf_addf(&sb, "option `%s'", opt->long_name); + + return sb.buf; } |