[devnet companion]refactor/hotkey swap

.github/workflows/devnet-ready-labels.yml

@@ -0,0 +1,17 @@
+name: devnet-companion Label Check
+on:
+  pull_request:
+    types: [opened, labeled, unlabeled, synchronize]
+    branches: [devnet-ready]
+jobs:
+  check-labels:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - uses: mheap/github-action-required-labels@v5
+        with:
+          mode: minimum
+          count: 1
+          labels: devnet-companion

.github/workflows/testnet-ready-labels.yml

@@ -0,0 +1,17 @@
+name: testnet-companion Label Check
+on:
+  pull_request:
+    types: [opened, labeled, unlabeled, synchronize]
+    branches: [testnet-ready]
+jobs:
+  check-labels:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - uses: mheap/github-action-required-labels@v5
+        with:
+          mode: minimum
+          count: 1
+          labels: testnet-companion

CONTRIBUTING.md

@@ -15,9 +15,9 @@
    add appropriate labels to your PR as shown below. Three positive reviews are required.
 4. Once the required passing reviews have been obtained, you are ready to request that your PR
    be included in the next `devnet` deploy. To do this, you should open a companion PR merging
-   your branch into the `devnet-ready` branch. You must include a link to the parent PR in the
-   description and preface your PR title with "(Devnet Ready)" or the PR will be
-   closed/ignored.
+   a copy of your branch into the `devnet-ready` branch. You must include a link to the parent
+   PR in the description and preface your PR title with "(Devnet Ready)" or the PR will be
+   closed/ignored. Your companion PR should have the `devnet-companion` label.
 5. A core team administrator will review your "(Devnet Ready)" PR, verifying that it logically
    matches the changes introduced in the parent PR (there will sometimes be minor differences
    due to merge conflicts) and will either request changes or approve the PR and merge it. Once
@@ -86,11 +86,13 @@
 | `runtime` | PR contains substantive changes to runtime / pallet code | none |
 | `breaking-change` | PR requires synchronized changes with bittensor | Triggers an automatic bot message so the relevant teams are made aware of the change well in advance |
 | `migration` | PR contains one or more migrations | none |
+| `devnet-companion` | Designates a devnet companion PR | Presence of `devnet-companion` label is checked |
 | `devnet-ready` | PR's branch has been merged into the `devnet-ready` branch and will be included in the next `devnet` deploy | none |
 | `on-devnet` | PR has been deployed to `devnet` | Removes `devnet-ready` |
 | `devnet-pass` | PR has passed manual testing on `devnet` | `devnet-pass` or `devnet-skip` required |
 | `devnet-skip` | Allows a critical hotfix PR to skip required testing on `devnet` | `devnet-pass` or `devnet-skip` required |
 | `devnet-fail` | PR has failed manual testing on `devnet` and requires modification | none |
+| `testnet-companion` | Designates a testnet companion PR | Presence of `testnet-companion` label is checked |
 | `on-testnet` | PR has been deployed to `testnet` | none |
 | `testnet-pass` | PR has passed manual testing on `testnet` | `testnet-pass` or `testnet-skip` required |
 | `testnet-skip` | Allows a critical hotfix PR to skip required manual testing and SOP on `testnet` | `testnet-pass` or `testnet-skip` required |

pallets/admin-utils/tests/mock.rs

@@ -110,6 +110,7 @@ parameter_types! {
     pub const InitialSubnetLimit: u16 = 10; // Max 10 subnets.
     pub const InitialNetworkRateLimit: u64 = 0;
     pub const InitialTargetStakesPerInterval: u16 = 1;
+    pub const InitialHotkeySwapCost: u64 = 1_000_000_000;
     pub const InitialAlphaHigh: u16 = 58982; // Represents 0.9 as per the production default
     pub const InitialAlphaLow: u16 = 45875; // Represents 0.7 as per the production default
     pub const InitialLiquidAlphaOn: bool = false; // Default value for LiquidAlphaOn
@@ -164,6 +165,7 @@ impl pallet_subtensor::Config for Test {
     type InitialSubnetLimit = InitialSubnetLimit;
     type InitialNetworkRateLimit = InitialNetworkRateLimit;
     type InitialTargetStakesPerInterval = InitialTargetStakesPerInterval;
+    type HotkeySwapCost = InitialHotkeySwapCost;
     type AlphaHigh = InitialAlphaHigh;
     type AlphaLow = InitialAlphaLow;
     type LiquidAlphaOn = InitialLiquidAlphaOn;

pallets/subtensor/src/lib.rs

@@ -43,6 +43,7 @@ mod registration;
 mod root;
 mod serving;
 mod staking;
+mod swap;
 mod uids;
 mod utils;
 mod weights;
@@ -240,6 +241,9 @@ pub mod pallet {
         /// Initial target stakes per interval issuance.
         #[pallet::constant]
         type InitialTargetStakesPerInterval: Get<u64>;
+        /// Cost of swapping a hotkey.
+        #[pallet::constant]
+        type HotkeySwapCost: Get<u64>;
         /// The upper bound for the alpha parameter. Used for Liquid Alpha.
         #[pallet::constant]
         type AlphaHigh: Get<u16>;
@@ -744,7 +748,7 @@ pub mod pallet {
     pub(super) type TxDelegateTakeRateLimit<T> =
         StorageValue<_, u64, ValueQuery, DefaultTxDelegateTakeRateLimit<T>>;
     #[pallet::storage] // --- MAP ( key ) --> last_block
-    pub(super) type LastTxBlock<T: Config> =
+    pub type LastTxBlock<T: Config> =
         StorageMap<_, Identity, T::AccountId, u64, ValueQuery, DefaultLastTxBlock<T>>;
     #[pallet::storage] // --- MAP ( key ) --> last_block
     pub(super) type LastTxBlockDelegateTake<T: Config> =
@@ -760,10 +764,10 @@ pub mod pallet {
     pub type ServingRateLimit<T> =
         StorageMap<_, Identity, u16, u64, ValueQuery, DefaultServingRateLimit<T>>;
     #[pallet::storage] // --- MAP ( netuid, hotkey ) --> axon_info
-    pub(super) type Axons<T: Config> =
+    pub type Axons<T: Config> =
         StorageDoubleMap<_, Identity, u16, Blake2_128Concat, T::AccountId, AxonInfoOf, OptionQuery>;
     #[pallet::storage] // --- MAP ( netuid, hotkey ) --> prometheus_info
-    pub(super) type Prometheus<T: Config> = StorageDoubleMap<
+    pub type Prometheus<T: Config> = StorageDoubleMap<
         _,
         Identity,
         u16,
@@ -1017,13 +1021,13 @@ pub mod pallet {
     }
 
     #[pallet::storage] // --- DMAP ( netuid, hotkey ) --> uid
-    pub(super) type Uids<T: Config> =
+    pub type Uids<T: Config> =
         StorageDoubleMap<_, Identity, u16, Blake2_128Concat, T::AccountId, u16, OptionQuery>;
     #[pallet::storage] // --- DMAP ( netuid, uid ) --> hotkey
-    pub(super) type Keys<T: Config> =
+    pub type Keys<T: Config> =
         StorageDoubleMap<_, Identity, u16, Identity, u16, T::AccountId, ValueQuery, DefaultKey<T>>;
     #[pallet::storage] // --- DMAP ( netuid ) --> (hotkey, se, ve)
-    pub(super) type LoadedEmission<T: Config> =
+    pub type LoadedEmission<T: Config> =
         StorageMap<_, Identity, u16, Vec<(T::AccountId, u64, u64)>, OptionQuery>;
 
     #[pallet::storage] // --- DMAP ( netuid ) --> active

pallets/subtensor/src/registration.rs

@@ -1,6 +1,5 @@
 use super::*;
-use frame_support::storage::IterableStorageDoubleMap;
-use sp_core::{Get, H256, U256};
+use sp_core::{H256, U256};
 use sp_io::hashing::{keccak_256, sha2_256};
 use sp_runtime::Saturating;
 use system::pallet_prelude::BlockNumberFor;
@@ -395,7 +394,7 @@ impl<T: Config> Pallet<T> {
         UsedWork::<T>::insert(work.clone(), current_block_number);
 
         // --- 5. Add Balance via faucet.
-        let balance_to_add: u64 = 100_000_000_000;
+        let balance_to_add: u64 = 1_000_000_000_000;
         Self::coinbase(100_000_000_000); // We are creating tokens here from the coinbase.
 
         Self::add_balance_to_coldkey_account(&coldkey, balance_to_add);
@@ -591,140 +590,4 @@ impl<T: Config> Pallet<T> {
         let vec_work: Vec<u8> = Self::hash_to_vec(work);
         (nonce, vec_work)
     }
-
-    pub fn do_swap_hotkey(
-        origin: T::RuntimeOrigin,
-        old_hotkey: &T::AccountId,
-        new_hotkey: &T::AccountId,
-    ) -> DispatchResultWithPostInfo {
-        let coldkey = ensure_signed(origin)?;
-
-        let mut weight = T::DbWeight::get().reads_writes(2, 0);
-        ensure!(
-            Self::coldkey_owns_hotkey(&coldkey, old_hotkey),
-            Error::<T>::NonAssociatedColdKey
-        );
-
-        let block: u64 = Self::get_current_block_as_u64();
-        ensure!(
-            !Self::exceeds_tx_rate_limit(Self::get_last_tx_block(&coldkey), block),
-            Error::<T>::HotKeySetTxRateLimitExceeded
-        );
-
-        weight.saturating_accrue(T::DbWeight::get().reads(2));
-
-        ensure!(old_hotkey != new_hotkey, Error::<T>::NewHotKeyIsSameWithOld);
-        ensure!(
-            !Self::is_hotkey_registered_on_any_network(new_hotkey),
-            Error::<T>::HotKeyAlreadyRegisteredInSubNet
-        );
-
-        weight.saturating_accrue(
-            T::DbWeight::get().reads((TotalNetworks::<T>::get().saturating_add(1)) as u64),
-        );
-
-        let swap_cost = 1_000_000_000u64;
-        ensure!(
-            Self::can_remove_balance_from_coldkey_account(&coldkey, swap_cost),
-            Error::<T>::NotEnoughBalanceToPaySwapHotKey
-        );
-        let actual_burn_amount = Self::remove_balance_from_coldkey_account(&coldkey, swap_cost)?;
-        Self::burn_tokens(actual_burn_amount);
-
-        Owner::<T>::remove(old_hotkey);
-        Owner::<T>::insert(new_hotkey, coldkey.clone());
-        weight.saturating_accrue(T::DbWeight::get().writes(2));
-
-        if let Ok(total_hotkey_stake) = TotalHotkeyStake::<T>::try_get(old_hotkey) {
-            TotalHotkeyStake::<T>::remove(old_hotkey);
-            TotalHotkeyStake::<T>::insert(new_hotkey, total_hotkey_stake);
-
-            weight.saturating_accrue(T::DbWeight::get().writes(2));
-        }
-
-        if let Ok(delegate_take) = Delegates::<T>::try_get(old_hotkey) {
-            Delegates::<T>::remove(old_hotkey);
-            Delegates::<T>::insert(new_hotkey, delegate_take);
-
-            weight.saturating_accrue(T::DbWeight::get().writes(2));
-        }
-
-        if let Ok(last_tx) = LastTxBlock::<T>::try_get(old_hotkey) {
-            LastTxBlock::<T>::remove(old_hotkey);
-            LastTxBlock::<T>::insert(new_hotkey, last_tx);
-
-            weight.saturating_accrue(T::DbWeight::get().writes(2));
-        }
-
-        let mut coldkey_stake: Vec<(T::AccountId, u64)> = vec![];
-        for (coldkey, stake_amount) in Stake::<T>::iter_prefix(old_hotkey) {
-            coldkey_stake.push((coldkey.clone(), stake_amount));
-        }
-
-        let _ = Stake::<T>::clear_prefix(old_hotkey, coldkey_stake.len() as u32, None);
-        weight.saturating_accrue(T::DbWeight::get().writes(coldkey_stake.len() as u64));
-
-        for (coldkey, stake_amount) in coldkey_stake {
-            Stake::<T>::insert(new_hotkey, coldkey, stake_amount);
-            weight.saturating_accrue(T::DbWeight::get().writes(1));
-        }
-
-        let mut netuid_is_member: Vec<u16> = vec![];
-        for netuid in <IsNetworkMember<T> as IterableStorageDoubleMap<T::AccountId, u16, bool>>::iter_key_prefix(old_hotkey) {
-            netuid_is_member.push(netuid);
-        }
-
-        let _ = IsNetworkMember::<T>::clear_prefix(old_hotkey, netuid_is_member.len() as u32, None);
-        weight.saturating_accrue(T::DbWeight::get().writes(netuid_is_member.len() as u64));
-
-        for netuid in netuid_is_member.iter() {
-            IsNetworkMember::<T>::insert(new_hotkey, netuid, true);
-            weight.saturating_accrue(T::DbWeight::get().writes(1));
-        }
-
-        for netuid in netuid_is_member.iter() {
-            if let Ok(axon_info) = Axons::<T>::try_get(netuid, old_hotkey) {
-                Axons::<T>::remove(netuid, old_hotkey);
-                Axons::<T>::insert(netuid, new_hotkey, axon_info);
-
-                weight.saturating_accrue(T::DbWeight::get().writes(2));
-            }
-        }
-
-        for netuid in netuid_is_member.iter() {
-            if let Ok(uid) = Uids::<T>::try_get(netuid, old_hotkey) {
-                Uids::<T>::remove(netuid, old_hotkey);
-                Uids::<T>::insert(netuid, new_hotkey, uid);
-
-                weight.saturating_accrue(T::DbWeight::get().writes(2));
-
-                Keys::<T>::insert(netuid, uid, new_hotkey);
-
-                weight.saturating_accrue(T::DbWeight::get().writes(1));
-
-                LoadedEmission::<T>::mutate(netuid, |emission_exists| match emission_exists {
-                    Some(emissions) => {
-                        if let Some(emission) = emissions.get_mut(uid as usize) {
-                            let (_, se, ve) = emission;
-                            *emission = (new_hotkey.clone(), *se, *ve);
-                        }
-                    }
-                    None => {}
-                });
-
-                weight.saturating_accrue(T::DbWeight::get().writes(1));
-            }
-        }
-
-        Self::set_last_tx_block(&coldkey, block);
-        weight.saturating_accrue(T::DbWeight::get().writes(1));
-
-        Self::deposit_event(Event::HotkeySwapped {
-            coldkey,
-            old_hotkey: old_hotkey.clone(),
-            new_hotkey: new_hotkey.clone(),
-        });
-
-        Ok(Some(weight).into())
-    }
 }