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#include "configdir.h"
#include <ccan/opt/opt.h>
#include <ccan/tal/path/path.h>
#include <ccan/tal/str/str.h>
#include <errno.h>
/* Override a tal string; frees the old one. */
char *opt_set_talstr(const char *arg, char **p)
{
tal_free(*p);
return opt_set_charp(tal_strdup(NULL, arg), p);
}
static char *default_configdir(const tal_t *ctx)
{
char *path;
const char *env = getenv("HOME");
if (!env)
return ".";
path = path_join(ctx, env, ".lightning");
return path;
}
void configdir_register_opts(const tal_t *ctx,
char **configdir, char **rpc_filename)
{
*configdir = default_configdir(ctx);
*rpc_filename = tal_strdup(ctx, "lightning-rpc");
opt_register_early_arg("--lightning-dir=<dir>", opt_set_talstr, opt_show_charp,
configdir,
"Set working directory. All other files are relative to this");
opt_register_arg("--rpc-file", opt_set_talstr, opt_show_charp,
rpc_filename,
"Set JSON-RPC socket (or /dev/tty)");
}