perf subcmd: Create subcmd library

Move the subcommand-related files from perf to a new library named
libsubcmd.a.

Since we're moving files anyway, go ahead and rename 'exec_cmd.*' to
'exec-cmd.*' to be consistent with the naming of all the other files.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/c0a838d4c878ab17fee50998811612b2281355c1.1450193761.git.jpoimboe@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 0 insertions, 983 deletions

diff --git a/tools/perf/util/parse-options.c b/tools/perf/util/parse-options.c
deleted file mode 100644
index 981bb44..0000000
--- a/tools/perf/util/parse-options.c
+++ /dev/null
@@ -1,983 +0,0 @@
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include <ctype.h>
-#include "subcmd-util.h"
-#include "parse-options.h"
-#include "subcmd-config.h"
-#include "pager.h"
-
-#define OPT_SHORT 1
-#define OPT_UNSET 2
-
-char *error_buf;
-
-static int opterror(const struct option *opt, const char *reason, int flags)
-{
-	if (flags & OPT_SHORT)
-		fprintf(stderr, " Error: switch `%c' %s", opt->short_name, reason);
-	else if (flags & OPT_UNSET)
-		fprintf(stderr, " Error: option `no-%s' %s", opt->long_name, reason);
-	else
-		fprintf(stderr, " Error: option `%s' %s", opt->long_name, reason);
-
-	return -1;
-}
-
-static const char *skip_prefix(const char *str, const char *prefix)
-{
-	size_t len = strlen(prefix);
-	return strncmp(str, prefix, len) ? NULL : str + len;
-}
-
-static void optwarning(const struct option *opt, const char *reason, int flags)
-{
-	if (flags & OPT_SHORT)
-		fprintf(stderr, " Warning: switch `%c' %s", opt->short_name, reason);
-	else if (flags & OPT_UNSET)
-		fprintf(stderr, " Warning: option `no-%s' %s", opt->long_name, reason);
-	else
-		fprintf(stderr, " Warning: option `%s' %s", opt->long_name, reason);
-}
-
-static int get_arg(struct parse_opt_ctx_t *p, const struct option *opt,
-		   int flags, const char **arg)
-{
-	const char *res;
-
-	if (p->opt) {
-		res = p->opt;
-		p->opt = NULL;
-	} else if ((opt->flags & PARSE_OPT_LASTARG_DEFAULT) && (p->argc == 1 ||
-		    **(p->argv + 1) == '-')) {
-		res = (const char *)opt->defval;
-	} else if (p->argc > 1) {
-		p->argc--;
-		res = *++p->argv;
-	} else
-		return opterror(opt, "requires a value", flags);
-	if (arg)
-		*arg = res;
-	return 0;
-}
-
-static int get_value(struct parse_opt_ctx_t *p,
-		     const struct option *opt, int flags)
-{
-	const char *s, *arg = NULL;
-	const int unset = flags & OPT_UNSET;
-	int err;
-
-	if (unset && p->opt)
-		return opterror(opt, "takes no value", flags);
-	if (unset && (opt->flags & PARSE_OPT_NONEG))
-		return opterror(opt, "isn't available", flags);
-	if (opt->flags & PARSE_OPT_DISABLED)
-		return opterror(opt, "is not usable", flags);
-
-	if (opt->flags & PARSE_OPT_EXCLUSIVE) {
-		if (p->excl_opt && p->excl_opt != opt) {
-			char msg[128];
-
-			if (((flags & OPT_SHORT) && p->excl_opt->short_name) ||
-			    p->excl_opt->long_name == NULL) {
-				snprintf(msg, sizeof(msg), "cannot be used with switch `%c'",
-					 p->excl_opt->short_name);
-			} else {
-				snprintf(msg, sizeof(msg), "cannot be used with %s",
-					 p->excl_opt->long_name);
-			}
-			opterror(opt, msg, flags);
-			return -3;
-		}
-		p->excl_opt = opt;
-	}
-	if (!(flags & OPT_SHORT) && p->opt) {
-		switch (opt->type) {
-		case OPTION_CALLBACK:
-			if (!(opt->flags & PARSE_OPT_NOARG))
-				break;
-			/* FALLTHROUGH */
-		case OPTION_BOOLEAN:
-		case OPTION_INCR:
-		case OPTION_BIT:
-		case OPTION_SET_UINT:
-		case OPTION_SET_PTR:
-			return opterror(opt, "takes no value", flags);
-		case OPTION_END:
-		case OPTION_ARGUMENT:
-		case OPTION_GROUP:
-		case OPTION_STRING:
-		case OPTION_INTEGER:
-		case OPTION_UINTEGER:
-		case OPTION_LONG:
-		case OPTION_U64:
-		default:
-			break;
-		}
-	}
-
-	if (opt->flags & PARSE_OPT_NOBUILD) {
-		char reason[128];
-		bool noarg = false;
-
-		err = snprintf(reason, sizeof(reason),
-				opt->flags & PARSE_OPT_CANSKIP ?
-					"is being ignored because %s " :
-					"is not available because %s",
-				opt->build_opt);
-		reason[sizeof(reason) - 1] = '\0';
-
-		if (err < 0)
-			strncpy(reason, opt->flags & PARSE_OPT_CANSKIP ?
-					"is being ignored" :
-					"is not available",
-					sizeof(reason));
-
-		if (!(opt->flags & PARSE_OPT_CANSKIP))
-			return opterror(opt, reason, flags);
-
-		err = 0;
-		if (unset)
-			noarg = true;
-		if (opt->flags & PARSE_OPT_NOARG)
-			noarg = true;
-		if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
-			noarg = true;
-
-		switch (opt->type) {
-		case OPTION_BOOLEAN:
-		case OPTION_INCR:
-		case OPTION_BIT:
-		case OPTION_SET_UINT:
-		case OPTION_SET_PTR:
-		case OPTION_END:
-		case OPTION_ARGUMENT:
-		case OPTION_GROUP:
-			noarg = true;
-			break;
-		case OPTION_CALLBACK:
-		case OPTION_STRING:
-		case OPTION_INTEGER:
-		case OPTION_UINTEGER:
-		case OPTION_LONG:
-		case OPTION_U64:
-		default:
-			break;
-		}
-
-		if (!noarg)
-			err = get_arg(p, opt, flags, NULL);
-		if (err)
-			return err;
-
-		optwarning(opt, reason, flags);
-		return 0;
-	}
-
-	switch (opt->type) {
-	case OPTION_BIT:
-		if (unset)
-			*(int *)opt->value &= ~opt->defval;
-		else
-			*(int *)opt->value |= opt->defval;
-		return 0;
-
-	case OPTION_BOOLEAN:
-		*(bool *)opt->value = unset ? false : true;
-		if (opt->set)
-			*(bool *)opt->set = true;
-		return 0;
-
-	case OPTION_INCR:
-		*(int *)opt->value = unset ? 0 : *(int *)opt->value + 1;
-		return 0;
-
-	case OPTION_SET_UINT:
-		*(unsigned int *)opt->value = unset ? 0 : opt->defval;
-		return 0;
-
-	case OPTION_SET_PTR:
-		*(void **)opt->value = unset ? NULL : (void *)opt->defval;
-		return 0;
-
-	case OPTION_STRING:
-		err = 0;
-		if (unset)
-			*(const char **)opt->value = NULL;
-		else if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
-			*(const char **)opt->value = (const char *)opt->defval;
-		else
-			err = get_arg(p, opt, flags, (const char **)opt->value);
-
-		/* PARSE_OPT_NOEMPTY: Allow NULL but disallow empty string. */
-		if (opt->flags & PARSE_OPT_NOEMPTY) {
-			const char *val = *(const char **)opt->value;
-
-			if (!val)
-				return err;
-
-			/* Similar to unset if we are given an empty string. */
-			if (val[0] == '\0') {
-				*(const char **)opt->value = NULL;
-				return 0;
-			}
-		}
-
-		return err;
-
-	case OPTION_CALLBACK:
-		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))
-			return -1;
-		return (*opt->callback)(opt, arg, 0) ? (-1) : 0;
-
-	case OPTION_INTEGER:
-		if (unset) {
-			*(int *)opt->value = 0;
-			return 0;
-		}
-		if (opt->flags & PARSE_OPT_OPTARG && !p->opt) {
-			*(int *)opt->value = opt->defval;
-			return 0;
-		}
-		if (get_arg(p, opt, flags, &arg))
-			return -1;
-		*(int *)opt->value = strtol(arg, (char **)&s, 10);
-		if (*s)
-			return opterror(opt, "expects a numerical value", flags);
-		return 0;
-
-	case OPTION_UINTEGER:
-		if (unset) {
-			*(unsigned int *)opt->value = 0;
-			return 0;
-		}
-		if (opt->flags & PARSE_OPT_OPTARG && !p->opt) {
-			*(unsigned int *)opt->value = opt->defval;
-			return 0;
-		}
-		if (get_arg(p, opt, flags, &arg))
-			return -1;
-		*(unsigned int *)opt->value = strtol(arg, (char **)&s, 10);
-		if (*s)
-			return opterror(opt, "expects a numerical value", flags);
-		return 0;
-
-	case OPTION_LONG:
-		if (unset) {
-			*(long *)opt->value = 0;
-			return 0;
-		}
-		if (opt->flags & PARSE_OPT_OPTARG && !p->opt) {
-			*(long *)opt->value = opt->defval;
-			return 0;
-		}
-		if (get_arg(p, opt, flags, &arg))
-			return -1;
-		*(long *)opt->value = strtol(arg, (char **)&s, 10);
-		if (*s)
-			return opterror(opt, "expects a numerical value", flags);
-		return 0;
-
-	case OPTION_U64:
-		if (unset) {
-			*(u64 *)opt->value = 0;
-			return 0;
-		}
-		if (opt->flags & PARSE_OPT_OPTARG && !p->opt) {
-			*(u64 *)opt->value = opt->defval;
-			return 0;
-		}
-		if (get_arg(p, opt, flags, &arg))
-			return -1;
-		*(u64 *)opt->value = strtoull(arg, (char **)&s, 10);
-		if (*s)
-			return opterror(opt, "expects a numerical value", flags);
-		return 0;
-
-	case OPTION_END:
-	case OPTION_ARGUMENT:
-	case OPTION_GROUP:
-	default:
-		die("should not happen, someone must be hit on the forehead");
-	}
-}
-
-static int parse_short_opt(struct parse_opt_ctx_t *p, const struct option *options)
-{
-	for (; options->type != OPTION_END; options++) {
-		if (options->short_name == *p->opt) {
-			p->opt = p->opt[1] ? p->opt + 1 : NULL;
-			return get_value(p, options, OPT_SHORT);
-		}
-	}
-	return -2;
-}
-
-static int parse_long_opt(struct parse_opt_ctx_t *p, const char *arg,
-                          const struct option *options)
-{
-	const char *arg_end = strchr(arg, '=');
-	const struct option *abbrev_option = NULL, *ambiguous_option = NULL;
-	int abbrev_flags = 0, ambiguous_flags = 0;
-
-	if (!arg_end)
-		arg_end = arg + strlen(arg);
-
-	for (; options->type != OPTION_END; options++) {
-		const char *rest;
-		int flags = 0;
-
-		if (!options->long_name)
-			continue;
-
-		rest = skip_prefix(arg, options->long_name);
-		if (options->type == OPTION_ARGUMENT) {
-			if (!rest)
-				continue;
-			if (*rest == '=')
-				return opterror(options, "takes no value", flags);
-			if (*rest)
-				continue;
-			p->out[p->cpidx++] = arg - 2;
-			return 0;
-		}
-		if (!rest) {
-			if (!prefixcmp(options->long_name, "no-")) {
-				/*
-				 * The long name itself starts with "no-", so
-				 * accept the option without "no-" so that users
-				 * do not have to enter "no-no-" to get the
-				 * negation.
-				 */
-				rest = skip_prefix(arg, options->long_name + 3);
-				if (rest) {
-					flags |= OPT_UNSET;
-					goto match;
-				}
-				/* Abbreviated case */
-				if (!prefixcmp(options->long_name + 3, arg)) {
-					flags |= OPT_UNSET;
-					goto is_abbreviated;
-				}
-			}
-			/* abbreviated? */
-			if (!strncmp(options->long_name, arg, arg_end - arg)) {
-is_abbreviated:
-				if (abbrev_option) {
-					/*
-					 * If this is abbreviated, it is
-					 * ambiguous. So when there is no
-					 * exact match later, we need to
-					 * error out.
-					 */
-					ambiguous_option = abbrev_option;
-					ambiguous_flags = abbrev_flags;
-				}
-				if (!(flags & OPT_UNSET) && *arg_end)
-					p->opt = arg_end + 1;
-				abbrev_option = options;
-				abbrev_flags = flags;
-				continue;
-			}
-			/* negated and abbreviated very much? */
-			if (!prefixcmp("no-", arg)) {
-				flags |= OPT_UNSET;
-				goto is_abbreviated;
-			}
-			/* negated? */
-			if (strncmp(arg, "no-", 3))
-				continue;
-			flags |= OPT_UNSET;
-			rest = skip_prefix(arg + 3, options->long_name);
-			/* abbreviated and negated? */
-			if (!rest && !prefixcmp(options->long_name, arg + 3))
-				goto is_abbreviated;
-			if (!rest)
-				continue;
-		}
-match:
-		if (*rest) {
-			if (*rest != '=')
-				continue;
-			p->opt = rest + 1;
-		}
-		return get_value(p, options, flags);
-	}
-
-	if (ambiguous_option) {
-		 fprintf(stderr,
-			 " 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 -1;
-	}
-	if (abbrev_option)
-		return get_value(p, abbrev_option, abbrev_flags);
-	return -2;
-}
-
-static void check_typos(const char *arg, const struct option *options)
-{
-	if (strlen(arg) < 3)
-		return;
-
-	if (!prefixcmp(arg, "no-")) {
-		fprintf(stderr, " Error: did you mean `--%s` (with two dashes ?)", arg);
-		exit(129);
-	}
-
-	for (; options->type != OPTION_END; options++) {
-		if (!options->long_name)
-			continue;
-		if (!prefixcmp(options->long_name, arg)) {
-			fprintf(stderr, " Error: did you mean `--%s` (with two dashes ?)", arg);
-			exit(129);
-		}
-	}
-}
-
-static void parse_options_start(struct parse_opt_ctx_t *ctx,
-				int argc, const char **argv, int flags)
-{
-	memset(ctx, 0, sizeof(*ctx));
-	ctx->argc = argc - 1;
-	ctx->argv = argv + 1;
-	ctx->out  = argv;
-	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");
-}
-
-static int usage_with_options_internal(const char * const *,
-				       const struct option *, int,
-				       struct parse_opt_ctx_t *);
-
-static int parse_options_step(struct parse_opt_ctx_t *ctx,
-			      const struct option *options,
-			      const char * const usagestr[])
-{
-	int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP);
-	int excl_short_opt = 1;
-	const char *arg;
-
-	/* we must reset ->opt, unknown short option leave it dangling */
-	ctx->opt = NULL;
-
-	for (; ctx->argc; ctx->argc--, ctx->argv++) {
-		arg = ctx->argv[0];
-		if (*arg != '-' || !arg[1]) {
-			if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION)
-				break;
-			ctx->out[ctx->cpidx++] = ctx->argv[0];
-			continue;
-		}
-
-		if (arg[1] != '-') {
-			ctx->opt = ++arg;
-			if (internal_help && *ctx->opt == 'h') {
-				return usage_with_options_internal(usagestr, options, 0, ctx);
-			}
-			switch (parse_short_opt(ctx, options)) {
-			case -1:
-				return parse_options_usage(usagestr, options, arg, 1);
-			case -2:
-				goto unknown;
-			case -3:
-				goto exclusive;
-			default:
-				break;
-			}
-			if (ctx->opt)
-				check_typos(arg, options);
-			while (ctx->opt) {
-				if (internal_help && *ctx->opt == 'h')
-					return usage_with_options_internal(usagestr, options, 0, ctx);
-				arg = ctx->opt;
-				switch (parse_short_opt(ctx, options)) {
-				case -1:
-					return parse_options_usage(usagestr, options, arg, 1);
-				case -2:
-					/* fake a short option thing to hide the fact that we may have
-					 * started to parse aggregated stuff
-					 *
-					 * This is leaky, too bad.
-					 */
-					ctx->argv[0] = strdup(ctx->opt - 1);
-					*(char *)ctx->argv[0] = '-';
-					goto unknown;
-				case -3:
-					goto exclusive;
-				default:
-					break;
-				}
-			}
-			continue;
-		}
-
-		if (!arg[2]) { /* "--" */
-			if (!(ctx->flags & PARSE_OPT_KEEP_DASHDASH)) {
-				ctx->argc--;
-				ctx->argv++;
-			}
-			break;
-		}
-
-		arg += 2;
-		if (internal_help && !strcmp(arg, "help-all"))
-			return usage_with_options_internal(usagestr, options, 1, ctx);
-		if (internal_help && !strcmp(arg, "help"))
-			return usage_with_options_internal(usagestr, options, 0, ctx);
-		if (!strcmp(arg, "list-opts"))
-			return PARSE_OPT_LIST_OPTS;
-		if (!strcmp(arg, "list-cmds"))
-			return PARSE_OPT_LIST_SUBCMDS;
-		switch (parse_long_opt(ctx, arg, options)) {
-		case -1:
-			return parse_options_usage(usagestr, options, arg, 0);
-		case -2:
-			goto unknown;
-		case -3:
-			excl_short_opt = 0;
-			goto exclusive;
-		default:
-			break;
-		}
-		continue;
-unknown:
-		if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN))
-			return PARSE_OPT_UNKNOWN;
-		ctx->out[ctx->cpidx++] = ctx->argv[0];
-		ctx->opt = NULL;
-	}
-	return PARSE_OPT_DONE;
-
-exclusive:
-	parse_options_usage(usagestr, options, arg, excl_short_opt);
-	if ((excl_short_opt && ctx->excl_opt->short_name) ||
-	    ctx->excl_opt->long_name == NULL) {
-		char opt = ctx->excl_opt->short_name;
-		parse_options_usage(NULL, options, &opt, 1);
-	} else {
-		parse_options_usage(NULL, options, ctx->excl_opt->long_name, 0);
-	}
-	return PARSE_OPT_HELP;
-}
-
-static int parse_options_end(struct parse_opt_ctx_t *ctx)
-{
-	memmove(ctx->out + ctx->cpidx, ctx->argv, ctx->argc * sizeof(*ctx->out));
-	ctx->out[ctx->cpidx + ctx->argc] = NULL;
-	return ctx->cpidx + ctx->argc;
-}
-
-int parse_options_subcommand(int argc, const char **argv, const struct option *options,
-			const char *const subcommands[], const char *usagestr[], int flags)
-{
-	struct parse_opt_ctx_t ctx;
-
-	/* build usage string if it's not provided */
-	if (subcommands && !usagestr[0]) {
-		char *buf = NULL;
-
-		astrcatf(&buf, "%s %s [<options>] {", subcmd_config.exec_name, argv[0]);
-
-		for (int i = 0; subcommands[i]; i++) {
-			if (i)
-				astrcat(&buf, "|");
-			astrcat(&buf, subcommands[i]);
-		}
-		astrcat(&buf, "}");
-
-		usagestr[0] = buf;
-	}
-
-	parse_options_start(&ctx, argc, argv, flags);
-	switch (parse_options_step(&ctx, options, usagestr)) {
-	case PARSE_OPT_HELP:
-		exit(129);
-	case PARSE_OPT_DONE:
-		break;
-	case PARSE_OPT_LIST_OPTS:
-		while (options->type != OPTION_END) {
-			if (options->long_name)
-				printf("--%s ", options->long_name);
-			options++;
-		}
-		putchar('\n');
-		exit(130);
-	case PARSE_OPT_LIST_SUBCMDS:
-		if (subcommands) {
-			for (int i = 0; subcommands[i]; i++)
-				printf("%s ", subcommands[i]);
-		}
-		putchar('\n');
-		exit(130);
-	default: /* PARSE_OPT_UNKNOWN */
-		if (ctx.argv[0][1] == '-')
-			astrcatf(&error_buf, "unknown option `%s'",
-				 ctx.argv[0] + 2);
-		else
-			astrcatf(&error_buf, "unknown switch `%c'", *ctx.opt);
-		usage_with_options(usagestr, options);
-	}
-
-	return parse_options_end(&ctx);
-}
-
-int parse_options(int argc, const char **argv, const struct option *options,
-		  const char * const usagestr[], int flags)
-{
-	return parse_options_subcommand(argc, argv, options, NULL,
-					(const char **) usagestr, flags);
-}
-
-#define USAGE_OPTS_WIDTH 24
-#define USAGE_GAP         2
-
-static void print_option_help(const struct option *opts, int full)
-{
-	size_t pos;
-	int pad;
-
-	if (opts->type == OPTION_GROUP) {
-		fputc('\n', stderr);
-		if (*opts->help)
-			fprintf(stderr, "%s\n", opts->help);
-		return;
-	}
-	if (!full && (opts->flags & PARSE_OPT_HIDDEN))
-		return;
-	if (opts->flags & PARSE_OPT_DISABLED)
-		return;
-
-	pos = fprintf(stderr, "    ");
-	if (opts->short_name)
-		pos += fprintf(stderr, "-%c", opts->short_name);
-	else
-		pos += fprintf(stderr, "    ");
-
-	if (opts->long_name && opts->short_name)
-		pos += fprintf(stderr, ", ");
-	if (opts->long_name)
-		pos += fprintf(stderr, "--%s", opts->long_name);
-
-	switch (opts->type) {
-	case OPTION_ARGUMENT:
-		break;
-	case OPTION_LONG:
-	case OPTION_U64:
-	case OPTION_INTEGER:
-	case OPTION_UINTEGER:
-		if (opts->flags & PARSE_OPT_OPTARG)
-			if (opts->long_name)
-				pos += fprintf(stderr, "[=<n>]");
-			else
-				pos += fprintf(stderr, "[<n>]");
-		else
-			pos += fprintf(stderr, " <n>");
-		break;
-	case OPTION_CALLBACK:
-		if (opts->flags & PARSE_OPT_NOARG)
-			break;
-		/* FALLTHROUGH */
-	case OPTION_STRING:
-		if (opts->argh) {
-			if (opts->flags & PARSE_OPT_OPTARG)
-				if (opts->long_name)
-					pos += fprintf(stderr, "[=<%s>]", opts->argh);
-				else
-					pos += fprintf(stderr, "[<%s>]", opts->argh);
-			else
-				pos += fprintf(stderr, " <%s>", opts->argh);
-		} else {
-			if (opts->flags & PARSE_OPT_OPTARG)
-				if (opts->long_name)
-					pos += fprintf(stderr, "[=...]");
-				else
-					pos += fprintf(stderr, "[...]");
-			else
-				pos += fprintf(stderr, " ...");
-		}
-		break;
-	default: /* OPTION_{BIT,BOOLEAN,SET_UINT,SET_PTR} */
-	case OPTION_END:
-	case OPTION_GROUP:
-	case OPTION_BIT:
-	case OPTION_BOOLEAN:
-	case OPTION_INCR:
-	case OPTION_SET_UINT:
-	case OPTION_SET_PTR:
-		break;
-	}
-
-	if (pos <= USAGE_OPTS_WIDTH)
-		pad = USAGE_OPTS_WIDTH - pos;
-	else {
-		fputc('\n', stderr);
-		pad = USAGE_OPTS_WIDTH;
-	}
-	fprintf(stderr, "%*s%s\n", pad + USAGE_GAP, "", opts->help);
-	if (opts->flags & PARSE_OPT_NOBUILD)
-		fprintf(stderr, "%*s(not built-in because %s)\n",
-			USAGE_OPTS_WIDTH + USAGE_GAP, "",
-			opts->build_opt);
-}
-
-static int option__cmp(const void *va, const void *vb)
-{
-	const struct option *a = va, *b = vb;
-	int sa = tolower(a->short_name), sb = tolower(b->short_name), ret;
-
-	if (sa == 0)
-		sa = 'z' + 1;
-	if (sb == 0)
-		sb = 'z' + 1;
-
-	ret = sa - sb;
-
-	if (ret == 0) {
-		const char *la = a->long_name ?: "",
-			   *lb = b->long_name ?: "";
-		ret = strcmp(la, lb);
-	}
-
-	return ret;
-}
-
-static struct option *options__order(const struct option *opts)
-{
-	int nr_opts = 0, len;
-	const struct option *o = opts;
-	struct option *ordered;
-
-	for (o = opts; o->type != OPTION_END; o++)
-		++nr_opts;
-
-	len = sizeof(*o) * (nr_opts + 1);
-	ordered = malloc(len);
-	if (!ordered)
-		goto out;
-	memcpy(ordered, opts, len);
-
-	qsort(ordered, nr_opts, sizeof(*o), option__cmp);
-out:
-	return ordered;
-}
-
-static bool option__in_argv(const struct option *opt, const struct parse_opt_ctx_t *ctx)
-{
-	int i;
-
-	for (i = 1; i < ctx->argc; ++i) {
-		const char *arg = ctx->argv[i];
-
-		if (arg[0] != '-') {
-			if (arg[1] == '\0') {
-				if (arg[0] == opt->short_name)
-					return true;
-				continue;
-			}
-
-			if (opt->long_name && strcmp(opt->long_name, arg) == 0)
-				return true;
-
-			if (opt->help && strcasestr(opt->help, arg) != NULL)
-				return true;
-
-			continue;
-		}
-
-		if (arg[1] == opt->short_name ||
-		    (arg[1] == '-' && opt->long_name && strcmp(opt->long_name, arg + 2) == 0))
-			return true;
-	}
-
-	return false;
-}
-
-static int usage_with_options_internal(const char * const *usagestr,
-				       const struct option *opts, int full,
-				       struct parse_opt_ctx_t *ctx)
-{
-	struct option *ordered;
-
-	if (!usagestr)
-		return PARSE_OPT_HELP;
-
-	setup_pager();
-
-	if (error_buf) {
-		fprintf(stderr, "  Error: %s\n", error_buf);
-		zfree(&error_buf);
-	}
-
-	fprintf(stderr, "\n Usage: %s\n", *usagestr++);
-	while (*usagestr && **usagestr)
-		fprintf(stderr, "    or: %s\n", *usagestr++);
-	while (*usagestr) {
-		fprintf(stderr, "%s%s\n",
-				**usagestr ? "    " : "",
-				*usagestr);
-		usagestr++;
-	}
-
-	if (opts->type != OPTION_GROUP)
-		fputc('\n', stderr);
-
-	ordered = options__order(opts);
-	if (ordered)
-		opts = ordered;
-
-	for (  ; opts->type != OPTION_END; opts++) {
-		if (ctx && ctx->argc > 1 && !option__in_argv(opts, ctx))
-			continue;
-		print_option_help(opts, full);
-	}
-
-	fputc('\n', stderr);
-
-	free(ordered);
-
-	return PARSE_OPT_HELP;
-}
-
-void usage_with_options(const char * const *usagestr,
-			const struct option *opts)
-{
-	usage_with_options_internal(usagestr, opts, 0, NULL);
-	exit(129);
-}
-
-void usage_with_options_msg(const char * const *usagestr,
-			    const struct option *opts, const char *fmt, ...)
-{
-	va_list ap;
-	char *tmp = error_buf;
-
-	va_start(ap, fmt);
-	if (vasprintf(&error_buf, fmt, ap) == -1)
-		die("vasprintf failed");
-	va_end(ap);
-
-	free(tmp);
-
-	usage_with_options_internal(usagestr, opts, 0, NULL);
-	exit(129);
-}
-
-int parse_options_usage(const char * const *usagestr,
-			const struct option *opts,
-			const char *optstr, bool short_opt)
-{
-	if (!usagestr)
-		goto opt;
-
-	fprintf(stderr, "\n Usage: %s\n", *usagestr++);
-	while (*usagestr && **usagestr)
-		fprintf(stderr, "    or: %s\n", *usagestr++);
-	while (*usagestr) {
-		fprintf(stderr, "%s%s\n",
-				**usagestr ? "    " : "",
-				*usagestr);
-		usagestr++;
-	}
-	fputc('\n', stderr);
-
-opt:
-	for (  ; opts->type != OPTION_END; opts++) {
-		if (short_opt) {
-			if (opts->short_name == *optstr) {
-				print_option_help(opts, 0);
-				break;
-			}
-			continue;
-		}
-
-		if (opts->long_name == NULL)
-			continue;
-
-		if (!prefixcmp(opts->long_name, optstr))
-			print_option_help(opts, 0);
-		if (!prefixcmp("no-", optstr) &&
-		    !prefixcmp(opts->long_name, optstr + 3))
-			print_option_help(opts, 0);
-	}
-
-	return PARSE_OPT_HELP;
-}
-
-
-int parse_opt_verbosity_cb(const struct option *opt,
-			   const char *arg __maybe_unused,
-			   int unset)
-{
-	int *target = opt->value;
-
-	if (unset)
-		/* --no-quiet, --no-verbose */
-		*target = 0;
-	else if (opt->short_name == 'v') {
-		if (*target >= 0)
-			(*target)++;
-		else
-			*target = 1;
-	} else {
-		if (*target <= 0)
-			(*target)--;
-		else
-			*target = -1;
-	}
-	return 0;
-}
-
-static struct option *
-find_option(struct option *opts, int shortopt, const char *longopt)
-{
-	for (; opts->type != OPTION_END; opts++) {
-		if ((shortopt && opts->short_name == shortopt) ||
-		    (opts->long_name && longopt &&
-		     !strcmp(opts->long_name, longopt)))
-			return opts;
-	}
-	return NULL;
-}
-
-void set_option_flag(struct option *opts, int shortopt, const char *longopt,
-		     int flag)
-{
-	struct option *opt = find_option(opts, shortopt, longopt);
-
-	if (opt)
-		opt->flags |= flag;
-	return;
-}
-
-void set_option_nobuild(struct option *opts, int shortopt,
-			const char *longopt,
-			const char *build_opt,
-			bool can_skip)
-{
-	struct option *opt = find_option(opts, shortopt, longopt);
-
-	if (!opt)
-		return;
-
-	opt->flags |= PARSE_OPT_NOBUILD;
-	opt->flags |= can_skip ? PARSE_OPT_CANSKIP : 0;
-	opt->build_opt = build_opt;
-}