Function resolveSSHConfig

src/node/runtime/sshConfigParser.ts:270–311

(host: string)

}

export async function resolveSSHConfig(host: string): Promise<ResolvedSSHConfig> {
  const { host: hostAlias, user: userOverride } = parseHostAndUser(host);
  const homeDir = getHomeDir();

  const config = await loadSSHConfig();
  const computed = config
    ? userOverride
      ? config.compute({ Host: hostAlias, User: userOverride })
      : config.compute(hostAlias)
    : {};

  const hostName = toStringValue(getConfigValue(computed, "HostName")) ?? hostAlias;
  const userFromConfig = toStringValue(getConfigValue(computed, "User"));

  if (config) {
    // Default to local username for %r expansion if no User is specified
    const matchExecUser = userOverride ?? userFromConfig ?? getDefaultUsername();
    applyNegatedExecMatch(config, hostName, matchExecUser, computed);
  }

  const portValue = toStringValue(getConfigValue(computed, "Port"));
  const identityValues = toStringArray(getConfigValue(computed, "IdentityFile"));
  const proxyCommandRaw = toStringValue(getConfigValue(computed, "ProxyCommand"));

  const port = portValue ? Number.parseInt(portValue, 10) : DEFAULT_SSH_PORT;

  const identityFiles = identityValues.map((value) => normalizeIdentityFile(value, homeDir));

  const proxyCommand =
    proxyCommandRaw && proxyCommandRaw.toLowerCase() !== "none"
      ? proxyCommandRaw.trim()
      : undefined;

  return {
    host: hostAlias,
    hostName,
    user: userOverride ?? userFromConfig,
    port: Number.isFinite(port) ? port : DEFAULT_SSH_PORT,
    identityFiles,
    proxyCommand,
  };
}