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plugin: allow plugins to set dynamic on options.

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2023-06-06 10:08:53 +09:30
parent e50e57712a
commit b0c07dff2a
1 changed files with 43 additions and 27 deletions
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70
lightningd/plugin.c
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@ -893,22 +893,43 @@ bool is_plugin_opt(const struct opt_table *ot)
|| ot->cb_arg == (void *)plugin_opt_bool_check;
}
/* Sets *ret to false if it doesn't appear, otherwise, sets to value */
static char *bool_setting(tal_t *ctx,
const char *optname,
const char *buffer,
const jsmntok_t *opt,
const char *tokname,
bool *ret)
{
const jsmntok_t *tok = json_get_member(buffer, opt, tokname);
if (!tok) {
*ret = false;
return NULL;
}
if (!json_to_bool(buffer, tok, ret))
return tal_fmt(ctx,
"%s: invalid \"%s\" field %.*s",
optname, tokname,
tok->end - tok->start,
buffer + tok->start);
return NULL;
}
/* Add a single plugin option to the plugin as well as registering it with the
* command line options. */
static const char *plugin_opt_add(struct plugin *plugin, const char *buffer,
const jsmntok_t *opt)
{
const jsmntok_t *nametok, *typetok, *defaulttok, *desctok, *deptok, *multitok;
const jsmntok_t *nametok, *typetok, *defaulttok, *desctok;
struct plugin_opt *popt;
bool multi;
const char *name;
const char *name, *err;
enum opt_type optflags = 0;
bool set;
nametok = json_get_member(buffer, opt, "name");
typetok = json_get_member(buffer, opt, "type");
desctok = json_get_member(buffer, opt, "description");
defaulttok = json_get_member(buffer, opt, "default");
deptok = json_get_member(buffer, opt, "deprecated");
multitok = json_get_member(buffer, opt, "multi");
if (!typetok || !nametok || !desctok) {
return tal_fmt(plugin,
@ -938,25 +959,21 @@ static const char *plugin_opt_add(struct plugin *plugin, const char *buffer,
}
popt->description = json_strdup(popt, buffer, desctok);
if (deptok) {
if (!json_to_bool(buffer, deptok, &popt->deprecated))
return tal_fmt(plugin,
"%s: invalid \"deprecated\" field %.*s",
name,
deptok->end - deptok->start,
buffer + deptok->start);
} else
popt->deprecated = false;
err = bool_setting(plugin, popt->name, buffer, opt, "deprecated", &popt->deprecated);
if (err)
return err;
if (multitok) {
if (!json_to_bool(buffer, multitok, &multi))
return tal_fmt(plugin,
"%s: invalid \"multi\" field %.*s",
name,
multitok->end - multitok->start,
buffer + multitok->start);
} else
multi = false;
err = bool_setting(plugin, popt->name, buffer, opt, "multi", &set);
if (err)
return err;
if (set)
optflags |= OPT_MULTI;
err = bool_setting(plugin, popt->name, buffer, opt, "dynamic", &set);
if (err)
return err;
if (set)
optflags |= OPT_DYNAMIC;
if (json_tok_streq(buffer, typetok, "flag")) {
if (defaulttok) {
@ -979,16 +996,15 @@ static const char *plugin_opt_add(struct plugin *plugin, const char *buffer,
}
defaulttok = NULL;
}
if (multi)
if (optflags & OPT_MULTI)
return tal_fmt(plugin, "flag type cannot be multi");
clnopt_noarg(popt->name,
0,
optflags,
plugin_opt_flag_check, popt,
popt->description);
} else {
/* These all take an arg. */
char *(*cb_arg)(const char *optarg, void *arg);
enum opt_type optflags = multi ? OPT_MULTI : 0;
if (json_tok_streq(buffer, typetok, "string")) {
cb_arg = (void *)plugin_opt_string_check;
@ -996,7 +1012,7 @@ static const char *plugin_opt_add(struct plugin *plugin, const char *buffer,
cb_arg = (void *)plugin_opt_long_check;
optflags |= OPT_SHOWINT;
} else if (json_tok_streq(buffer, typetok, "bool")) {
if (multi)
if (optflags & OPT_MULTI)
return tal_fmt(plugin, "bool type cannot be multi");
optflags |= OPT_SHOWBOOL;
cb_arg = (void *)plugin_opt_bool_check;