nix-super/src/libstore/ssh-store-config.cc

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#include <regex>
#include "ssh-store-config.hh"
namespace nix {
std::string CommonSSHStoreConfig::extractConnStr(std::string_view scheme, std::string_view _connStr)
{
if (_connStr.empty())
throw UsageError("`%s` store requires a valid SSH host as the authority part in Store URI", scheme);
std::string connStr{_connStr};
std::smatch result;
static std::regex v6AddrRegex("^((.*)@)?\\[(.*)\\]$");
if (std::regex_match(connStr, result, v6AddrRegex)) {
connStr = result[1].matched ? result.str(1) + result.str(3) : result.str(3);
}
return connStr;
}
}