return 0;
}
+static void fix_filename(const char *prefix, const char **file)
+{
+ if (!file || !*file || !prefix || is_absolute_path(*file)
+ || !strcmp("-", *file))
+ return;
+ *file = xstrdup(prefix_filename(prefix, strlen(prefix), *file));
+}
+
static int get_value(struct parse_opt_ctx_t *p,
const struct option *opt, 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 get_arg(p, opt, flags, (const char **)opt->value);
return 0;
+ case OPTION_FILENAME:
+ 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);
+
+ if (!err)
+ fix_filename(p->prefix, (const char **)opt->value);
+ return err;
+
case OPTION_CALLBACK:
if (unset)
return (*opt->callback)(opt, NULL, 1) ? (-1) : 0;
abbrev_flags = flags;
continue;
}
+ /* negation allowed? */
+ if (options->flags & PARSE_OPT_NONEG)
+ continue;
/* negated and abbreviated very much? */
if (!prefixcmp("no-", arg)) {
flags |= OPT_UNSET;
}
}
+static void parse_options_check(const struct option *opts)
+{
+ int err = 0;
+
+ 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;
+ }
+ }
+
+ if (err)
+ exit(129);
+}
+
void parse_options_start(struct parse_opt_ctx_t *ctx,
- int argc, const char **argv, int flags)
+ int argc, const char **argv, const char *prefix,
+ int flags)
{
memset(ctx, 0, sizeof(*ctx));
ctx->argc = argc - 1;
ctx->argv = argv + 1;
ctx->out = argv;
+ ctx->prefix = prefix;
ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0);
ctx->flags = flags;
if ((flags & PARSE_OPT_KEEP_UNKNOWN) &&
{
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;
return ctx->cpidx + ctx->argc;
}
-int parse_options(int argc, const char **argv, const struct option *options,
- const char * const usagestr[], int flags)
+int parse_options(int argc, const char **argv, const char *prefix,
+ const struct option *options, const char * const usagestr[],
+ int flags)
{
struct parse_opt_ctx_t ctx;
- parse_options_start(&ctx, argc, argv, flags);
+ parse_options_start(&ctx, argc, argv, prefix, flags);
switch (parse_options_step(&ctx, options, usagestr)) {
case PARSE_OPT_HELP:
exit(129);
return parse_options_end(&ctx);
}
+static int usage_argh(const struct option *opts)
+{
+ const char *s;
+ int literal = (opts->flags & PARSE_OPT_LITERAL_ARGHELP) || !opts->argh;
+ if (opts->flags & PARSE_OPT_OPTARG)
+ if (opts->long_name)
+ s = literal ? "[=%s]" : "[=<%s>]";
+ else
+ s = literal ? "[%s]" : "[<%s>]";
+ else
+ s = literal ? " %s" : " <%s>";
+ return fprintf(stderr, s, opts->argh ? opts->argh : "...");
+}
+
#define USAGE_OPTS_WIDTH 24
#define USAGE_GAP 2
-int usage_with_options_internal(const char * const *usagestr,
+static int usage_with_options_internal(const char * const *usagestr,
const struct option *opts, int full)
{
if (!usagestr)
continue;
pos = fprintf(stderr, " ");
- if (opts->short_name) {
+ if (opts->short_name && !(opts->flags & PARSE_OPT_NEGHELP)) {
if (opts->flags & PARSE_OPT_NODASH)
pos += fprintf(stderr, "%c", opts->short_name);
else
if (opts->long_name && opts->short_name)
pos += fprintf(stderr, ", ");
if (opts->long_name)
- pos += fprintf(stderr, "--%s", opts->long_name);
+ pos += fprintf(stderr, "--%s%s",
+ (opts->flags & PARSE_OPT_NEGHELP) ? "no-" : "",
+ opts->long_name);
if (opts->type == OPTION_NUMBER)
pos += fprintf(stderr, "-NUM");
- switch (opts->type) {
- case OPTION_ARGUMENT:
- break;
- case OPTION_INTEGER:
- 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,NUMBER,SET_INT,SET_PTR} */
- break;
- }
+ if (!(opts->flags & PARSE_OPT_NOARG))
+ pos += usage_argh(opts);
if (pos <= USAGE_OPTS_WIDTH)
pad = USAGE_OPTS_WIDTH - pos;
exit(129);
}
+void usage_msg_opt(const char *msg,
+ const char * const *usagestr,
+ const struct option *options)
+{
+ fprintf(stderr, "%s\n\n", msg);
+ usage_with_options(usagestr, options);
+}
+
int parse_options_usage(const char * const *usagestr,
const struct option *opts)
{
commit_list_insert(commit, opt->value);
return 0;
}
-
-/*
- * This should really be OPTION_FILENAME type as a part of
- * parse_options that take prefix to do this while parsing.
- */
-extern const char *parse_options_fix_filename(const char *prefix, const char *file)
-{
- if (!file || !prefix || is_absolute_path(file) || !strcmp("-", file))
- return file;
- return prefix_filename(prefix, strlen(prefix), file);
-}
-