#define OPT_SHORT 1
#define OPT_UNSET 2
-static int opterror(const struct option *opt, const char *reason, int flags)
+int optbug(const struct option *opt, const char *reason)
+{
+ if (opt->long_name)
+ return error("BUG: option '%s' %s", opt->long_name, reason);
+ return error("BUG: switch '%c' %s", opt->short_name, reason);
+}
+
+int opterror(const struct option *opt, const char *reason, int flags)
{
if (flags & OPT_SHORT)
return error("switch `%c' %s", opt->short_name, reason);
return opterror(opt, "takes no value", flags);
if (unset && (opt->flags & PARSE_OPT_NONEG))
return opterror(opt, "isn't available", flags);
-
- 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_BIT:
- case OPTION_NEGBIT:
- case OPTION_SET_INT:
- case OPTION_SET_PTR:
- return opterror(opt, "takes no value", flags);
- default:
- break;
- }
- }
+ if (!(flags & OPT_SHORT) && p->opt && (opt->flags & PARSE_OPT_NOARG))
+ return opterror(opt, "takes no value", flags);
switch (opt->type) {
+ case OPTION_LOWLEVEL_CALLBACK:
+ return (*(parse_opt_ll_cb *)opt->callback)(p, opt, unset);
+
case OPTION_BIT:
if (unset)
*(int *)opt->value &= ~opt->defval;
*(int *)opt->value &= ~opt->defval;
return 0;
- case OPTION_BOOLEAN:
+ case OPTION_COUNTUP:
*(int *)opt->value = unset ? 0 : *(int *)opt->value + 1;
return 0;
arg_end = arg + strlen(arg);
for (; options->type != OPTION_END; options++) {
- const char *rest;
- int flags = 0;
+ const char *rest, *long_name = options->long_name;
+ int flags = 0, opt_flags = 0;
- if (!options->long_name)
+ if (!long_name)
continue;
- rest = skip_prefix(arg, options->long_name);
+again:
+ rest = skip_prefix(arg, long_name);
if (options->type == OPTION_ARGUMENT) {
if (!rest)
continue;
}
if (!rest) {
/* abbreviated? */
- if (!strncmp(options->long_name, arg, arg_end - arg)) {
+ if (!strncmp(long_name, arg, arg_end - arg)) {
is_abbreviated:
if (abbrev_option) {
/*
if (!(flags & OPT_UNSET) && *arg_end)
p->opt = arg_end + 1;
abbrev_option = options;
- abbrev_flags = flags;
+ abbrev_flags = flags ^ opt_flags;
continue;
}
/* negation allowed? */
goto is_abbreviated;
}
/* negated? */
- if (strncmp(arg, "no-", 3))
+ if (prefixcmp(arg, "no-")) {
+ if (!prefixcmp(long_name, "no-")) {
+ long_name += 3;
+ opt_flags |= OPT_UNSET;
+ goto again;
+ }
continue;
+ }
flags |= OPT_UNSET;
- rest = skip_prefix(arg + 3, options->long_name);
+ rest = skip_prefix(arg + 3, long_name);
/* abbreviated and negated? */
- if (!rest && !prefixcmp(options->long_name, arg + 3))
+ if (!rest && !prefixcmp(long_name, arg + 3))
goto is_abbreviated;
if (!rest)
continue;
continue;
p->opt = rest + 1;
}
- return get_value(p, options, flags);
+ return get_value(p, options, flags ^ opt_flags);
}
if (ambiguous_option)
for (; options->type != OPTION_END; options++) {
if (!(options->flags & PARSE_OPT_NODASH))
continue;
- if ((options->flags & PARSE_OPT_OPTARG) ||
- !(options->flags & PARSE_OPT_NOARG))
- die("BUG: dashless options don't support arguments");
- if (!(options->flags & PARSE_OPT_NONEG))
- die("BUG: dashless options don't support negation");
- if (options->long_name)
- die("BUG: dashless options can't be long");
if (options->short_name == arg[0] && arg[1] == '\0')
return get_value(p, options, OPT_SHORT);
}
for (; opts->type != OPTION_END; opts++) {
if ((opts->flags & PARSE_OPT_LASTARG_DEFAULT) &&
- (opts->flags & PARSE_OPT_OPTARG)) {
- if (opts->long_name) {
- error("`--%s` uses incompatible flags "
- "LASTARG_DEFAULT and OPTARG", opts->long_name);
- } else {
- error("`-%c` uses incompatible flags "
- "LASTARG_DEFAULT and OPTARG", opts->short_name);
- }
- err |= 1;
+ (opts->flags & PARSE_OPT_OPTARG))
+ err |= optbug(opts, "uses incompatible flags "
+ "LASTARG_DEFAULT and OPTARG");
+ if (opts->flags & PARSE_OPT_NODASH &&
+ ((opts->flags & PARSE_OPT_OPTARG) ||
+ !(opts->flags & PARSE_OPT_NOARG) ||
+ !(opts->flags & PARSE_OPT_NONEG) ||
+ opts->long_name))
+ err |= optbug(opts, "uses feature "
+ "not supported for dashless options");
+ switch (opts->type) {
+ case OPTION_COUNTUP:
+ case OPTION_BIT:
+ case OPTION_NEGBIT:
+ case OPTION_SET_INT:
+ case OPTION_SET_PTR:
+ case OPTION_NUMBER:
+ if ((opts->flags & PARSE_OPT_OPTARG) ||
+ !(opts->flags & PARSE_OPT_NOARG))
+ err |= optbug(opts, "should not accept an argument");
+ default:
+ ; /* ok. (usually accepts an argument) */
}
}
-
if (err)
- exit(129);
+ exit(128);
}
void parse_options_start(struct parse_opt_ctx_t *ctx,
int argc, const char **argv, const char *prefix,
- int flags)
+ const struct option *options, int flags)
{
memset(ctx, 0, sizeof(*ctx));
ctx->argc = argc - 1;
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");
+ parse_options_check(options);
}
static int usage_with_options_internal(struct parse_opt_ctx_t *,
{
int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP);
- parse_options_check(options);
-
/* we must reset ->opt, unknown short option leave it dangling */
ctx->opt = NULL;
if (parse_nodash_opt(ctx, arg, options) == 0)
continue;
if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION)
- break;
+ return PARSE_OPT_NON_OPTION;
ctx->out[ctx->cpidx++] = ctx->argv[0];
continue;
}
case -1:
return parse_options_usage(ctx, usagestr, options, 1);
case -2:
+ if (ctx->opt)
+ check_typos(arg + 1, options);
goto unknown;
}
if (ctx->opt)
{
struct parse_opt_ctx_t ctx;
- parse_options_start(&ctx, argc, argv, prefix, flags);
+ parse_options_start(&ctx, argc, argv, prefix, options, flags);
switch (parse_options_step(&ctx, options, usagestr)) {
case PARSE_OPT_HELP:
exit(129);
+ case PARSE_OPT_NON_OPTION:
case PARSE_OPT_DONE:
break;
default: /* PARSE_OPT_UNKNOWN */
continue;
pos = fprintf(outfile, " ");
- if (opts->short_name && !(opts->flags & PARSE_OPT_NEGHELP)) {
+ if (opts->short_name) {
if (opts->flags & PARSE_OPT_NODASH)
pos += fprintf(outfile, "%c", opts->short_name);
else
if (opts->long_name && opts->short_name)
pos += fprintf(outfile, ", ");
if (opts->long_name)
- pos += fprintf(outfile, "--%s%s",
- (opts->flags & PARSE_OPT_NEGHELP) ? "no-" : "",
- opts->long_name);
+ pos += fprintf(outfile, "--%s", opts->long_name);
if (opts->type == OPTION_NUMBER)
pos += fprintf(outfile, "-NUM");
- if (!(opts->flags & PARSE_OPT_NOARG))
+ if ((opts->flags & PARSE_OPT_LITERAL_ARGHELP) ||
+ !(opts->flags & PARSE_OPT_NOARG))
pos += usage_argh(opts, outfile);
if (pos <= USAGE_OPTS_WIDTH)
return PARSE_OPT_HELP;
}
-void usage_with_options(const char * const *usagestr,
+void NORETURN usage_with_options(const char * const *usagestr,
const struct option *opts)
{
usage_with_options_internal(NULL, usagestr, opts, 0, 1);
exit(129);
}
-void usage_msg_opt(const char *msg,
+void NORETURN usage_msg_opt(const char *msg,
const char * const *usagestr,
const struct option *options)
{
return usage_with_options_internal(ctx, usagestr, opts, 0, err);
}
-
-/*----- some often used options -----*/
-#include "cache.h"
-
-int parse_opt_abbrev_cb(const struct option *opt, const char *arg, int unset)
-{
- int v;
-
- if (!arg) {
- v = unset ? 0 : DEFAULT_ABBREV;
- } else {
- v = strtol(arg, (char **)&arg, 10);
- if (*arg)
- return opterror(opt, "expects a numerical value", 0);
- if (v && v < MINIMUM_ABBREV)
- v = MINIMUM_ABBREV;
- else if (v > 40)
- v = 40;
- }
- *(int *)(opt->value) = v;
- return 0;
-}
-
-int parse_opt_approxidate_cb(const struct option *opt, const char *arg,
- int unset)
-{
- *(unsigned long *)(opt->value) = approxidate(arg);
- return 0;
-}
-
-int parse_opt_color_flag_cb(const struct option *opt, const char *arg,
- int unset)
-{
- int value;
-
- if (!arg)
- arg = unset ? "never" : (const char *)opt->defval;
- value = git_config_colorbool(NULL, arg, -1);
- if (value < 0)
- return opterror(opt,
- "expects \"always\", \"auto\", or \"never\"", 0);
- *(int *)opt->value = value;
- return 0;
-}
-
-int parse_opt_verbosity_cb(const struct option *opt, const char *arg,
- 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;
-}
-
-int parse_opt_with_commit(const struct option *opt, const char *arg, int unset)
-{
- unsigned char sha1[20];
- struct commit *commit;
-
- if (!arg)
- return -1;
- if (get_sha1(arg, sha1))
- return error("malformed object name %s", arg);
- commit = lookup_commit_reference(sha1);
- if (!commit)
- return error("no such commit %s", arg);
- commit_list_insert(commit, opt->value);
- return 0;
-}
-
-int parse_opt_tertiary(const struct option *opt, const char *arg, int unset)
-{
- int *target = opt->value;
- *target = unset ? 2 : 1;
- return 0;
-}
-
-int parse_options_concat(struct option *dst, size_t dst_size, struct option *src)
-{
- int i, j;
-
- for (i = 0; i < dst_size; i++)
- if (dst[i].type == OPTION_END)
- break;
- for (j = 0; i < dst_size; i++, j++) {
- dst[i] = src[j];
- if (src[j].type == OPTION_END)
- return 0;
- }
- return -1;
-}