Make Anker optional for maintainer

cli/src/config.rs

@@ -448,7 +448,7 @@ cli_opt_struct! {
 
  /// Address of the Anker program.
  #[clap(long, value_name = "address")]
- anker_program_id: Pubkey,
+ anker_program_id: Pubkey => Pubkey::default(),
 
  /// Account that stores the data for this Solido instance.
  #[clap(long, value_name = "address")]

cli/src/maintenance.rs

@@ -274,7 +274,7 @@ pub struct SolidoState {
  pub solido: Lido,
 
  /// Anker parameters
- pub anker_state: AnkerState,
+ pub anker_state: Option<AnkerState>,
 
  /// For each validator, in the same order as in `solido.validators`, holds
  /// the stake balance of the derived stake accounts from the begin seed until
@@ -487,7 +487,16 @@ impl SolidoState {
  // program does that anyway.
  let maintainer_address = config.signer.pubkey();
 
- let anker_state = AnkerState::new(config, *anker_program_id, solido_address, &solido)?;
+ let anker_state = if anker_program_id == &Pubkey::default() {
+ None
+ } else {
+ Some(AnkerState::new(
+ config,
+ *anker_program_id,
+ solido_address,
+ &solido,
+ )?)
+ };
 
  Ok(SolidoState {
  produced_at: SystemTime::now(),
@@ -710,19 +719,20 @@ impl SolidoState {
 
  /// Try to sell the extra stSOL rewards for UST tokens.
  pub fn try_sell_anker_rewards(&self) -> Option<(Instruction, MaintenanceOutput)> {
- let reserve_st_sol = self.anker_state.st_sol_reserve_balance;
+ let anker_state = self.anker_state.as_ref()?;
+ let reserve_st_sol = anker_state.st_sol_reserve_balance;
  let st_sol_amount = self
  .solido
  .exchange_rate
- .exchange_sol(Lamports(self.anker_state.b_sol_total_supply_amount.0))
+ .exchange_sol(Lamports(anker_state.b_sol_total_supply_amount.0))
  .unwrap();
  if let Ok(rewards) = reserve_st_sol - st_sol_amount {
  if rewards > StLamports(0) {
  Some((
- self.anker_state
+ anker_state
  .get_sell_rewards_instruction(self.solido_address, self.solido.st_sol_mint),
  MaintenanceOutput::SellRewards {
- st_sol_amount: self.anker_state.st_sol_reserve_balance,
+ st_sol_amount: anker_state.st_sol_reserve_balance,
  },
  ))
  } else {
@@ -1546,7 +1556,7 @@ mod test {
  solido_program_id: Pubkey::new_unique(),
  solido_address: Pubkey::new_unique(),
  solido: Lido::default(),
- anker_state: AnkerState::default(),
+ anker_state: Some(AnkerState::default()),
  validator_stake_accounts: vec![],
  validator_unstake_accounts: vec![],
  validator_vote_account_balances: vec![],