Newer
Older
// This file is part of Substrate.
// Copyright (C) 2020-2022 Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
//! Storage migrations for the Staking pallet.
use super::*;
Kian Paimani
committed
use frame_election_provider_support::SortedListProvider;
use frame_support::traits::OnRuntimeUpgrade;
pub mod v10 {
use super::*;
use frame_support::storage_alias;
#[storage_alias]
type EarliestUnappliedSlash<T: Config> = StorageValue<Pallet<T>, EraIndex>;
pub struct MigrateToV10<T>(sp_std::marker::PhantomData<T>);
impl<T: Config> OnRuntimeUpgrade for MigrateToV10<T> {
fn on_runtime_upgrade() -> frame_support::weights::Weight {
if StorageVersion::<T>::get() == Releases::V9_0_0 {
EarliestUnappliedSlash::<T>::kill();
StorageVersion::<T>::put(Releases::V10_0_0);
T::DbWeight::get().reads_writes(1, 1)
} else {
log!(warn, "MigrateToV10 should be removed.");
T::DbWeight::get().reads(1)
}
}
}
}
Kian Paimani
committed
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
pub mod v9 {
use super::*;
/// Migration implementation that injects all validators into sorted list.
///
/// This is only useful for chains that started their `VoterList` just based on nominators.
pub struct InjectValidatorsIntoVoterList<T>(sp_std::marker::PhantomData<T>);
impl<T: Config> OnRuntimeUpgrade for InjectValidatorsIntoVoterList<T> {
fn on_runtime_upgrade() -> Weight {
if StorageVersion::<T>::get() == Releases::V8_0_0 {
let prev_count = T::VoterList::count();
let weight_of_cached = Pallet::<T>::weight_of_fn();
for (v, _) in Validators::<T>::iter() {
let weight = weight_of_cached(&v);
let _ = T::VoterList::on_insert(v.clone(), weight).map_err(|err| {
log!(warn, "failed to insert {:?} into VoterList: {:?}", v, err)
});
}
log!(
info,
"injected a total of {} new voters, prev count: {} next count: {}, updating to version 9",
Validators::<T>::count(),
prev_count,
T::VoterList::count(),
);
StorageVersion::<T>::put(crate::Releases::V9_0_0);
T::BlockWeights::get().max_block
} else {
log!(
warn,
"InjectValidatorsIntoVoterList being executed on the wrong storage \
version, expected Releases::V8_0_0"
);
T::DbWeight::get().reads(1)
}
}
#[cfg(feature = "try-runtime")]
fn pre_upgrade() -> Result<(), &'static str> {
use frame_support::traits::OnRuntimeUpgradeHelpersExt;
frame_support::ensure!(
StorageVersion::<T>::get() == crate::Releases::V8_0_0,
"must upgrade linearly"
);
let prev_count = T::VoterList::count();
Self::set_temp_storage(prev_count, "prev");
Ok(())
}
#[cfg(feature = "try-runtime")]
fn post_upgrade() -> Result<(), &'static str> {
use frame_support::traits::OnRuntimeUpgradeHelpersExt;
let post_count = T::VoterList::count();
let prev_count = Self::get_temp_storage::<u32>("prev").unwrap();
let validators = Validators::<T>::count();
assert!(post_count == prev_count + validators);
frame_support::ensure!(
StorageVersion::<T>::get() == crate::Releases::V9_0_0,
"must upgrade "
);
Ok(())
}
}
}
pub mod v8 {
Kian Paimani
committed
use crate::{Config, Nominators, Pallet, StorageVersion, Weight};
use frame_election_provider_support::SortedListProvider;
use frame_support::traits::Get;
#[cfg(feature = "try-runtime")]
pub fn pre_migrate<T: Config>() -> Result<(), &'static str> {
frame_support::ensure!(
StorageVersion::<T>::get() == crate::Releases::V7_0_0,
"must upgrade linearly"
);
crate::log!(info, "👜 staking bags-list migration passes PRE migrate checks ✅",);
Ok(())
}
Kian Paimani
committed
/// Migration to sorted `VoterList`.
pub fn migrate<T: Config>() -> Weight {
if StorageVersion::<T>::get() == crate::Releases::V7_0_0 {
crate::log!(info, "migrating staking to Releases::V8_0_0");
Kian Paimani
committed
let migrated = T::VoterList::unsafe_regenerate(
Nominators::<T>::iter().map(|(id, _)| id),
Pallet::<T>::weight_of_fn(),
);
Kian Paimani
committed
debug_assert_eq!(T::VoterList::sanity_check(), Ok(()));
StorageVersion::<T>::put(crate::Releases::V8_0_0);
crate::log!(
info,
"👜 completed staking migration to Releases::V8_0_0 with {} voters migrated",
migrated,
);
T::BlockWeights::get().max_block
} else {
T::DbWeight::get().reads(1)
}
}
#[cfg(feature = "try-runtime")]
pub fn post_migrate<T: Config>() -> Result<(), &'static str> {
Kian Paimani
committed
T::VoterList::sanity_check().map_err(|_| "VoterList is not in a sane state.")?;
crate::log!(info, "👜 staking bags-list migration passes POST migrate checks ✅",);
Ok(())
}
}
pub mod v7 {
use super::*;
use frame_support::storage_alias;
#[storage_alias]
type CounterForValidators<T: Config> = StorageValue<Pallet<T>, u32>;
#[storage_alias]
type CounterForNominators<T: Config> = StorageValue<Pallet<T>, u32>;
pub fn pre_migrate<T: Config>() -> Result<(), &'static str> {
CounterForValidators::<T>::get().unwrap().is_zero(),
"CounterForValidators already set."
);
assert!(
CounterForNominators::<T>::get().unwrap().is_zero(),
"CounterForNominators already set."
);
assert!(Validators::<T>::count().is_zero(), "Validators already set.");
assert!(Nominators::<T>::count().is_zero(), "Nominators already set.");
assert!(StorageVersion::<T>::get() == Releases::V6_0_0);
Ok(())
}
pub fn migrate<T: Config>() -> Weight {
log!(info, "Migrating staking to Releases::V7_0_0");
let validator_count = Validators::<T>::iter().count() as u32;
let nominator_count = Nominators::<T>::iter().count() as u32;
CounterForValidators::<T>::put(validator_count);
CounterForNominators::<T>::put(nominator_count);
StorageVersion::<T>::put(Releases::V7_0_0);
log!(info, "Completed staking migration to Releases::V7_0_0");
T::DbWeight::get().reads_writes(validator_count.saturating_add(nominator_count).into(), 2)
}
}
pub mod v6 {
use super::*;
use frame_support::{storage_alias, traits::Get, weights::Weight};
// NOTE: value type doesn't matter, we just set it to () here.
#[storage_alias]
type SnapshotValidators<T: Config> = StorageValue<Pallet<T>, ()>;
#[storage_alias]
type SnapshotNominators<T: Config> = StorageValue<Pallet<T>, ()>;
#[storage_alias]
type QueuedElected<T: Config> = StorageValue<Pallet<T>, ()>;
#[storage_alias]
type QueuedScore<T: Config> = StorageValue<Pallet<T>, ()>;
#[storage_alias]
type EraElectionStatus<T: Config> = StorageValue<Pallet<T>, ()>;
#[storage_alias]
type IsCurrentSessionFinal<T: Config> = StorageValue<Pallet<T>, ()>;
/// check to execute prior to migration.
pub fn pre_migrate<T: Config>() -> Result<(), &'static str> {
// these may or may not exist.
log!(info, "SnapshotValidators.exits()? {:?}", SnapshotValidators::<T>::exists());
log!(info, "SnapshotNominators.exits()? {:?}", SnapshotNominators::<T>::exists());
log!(info, "QueuedElected.exits()? {:?}", QueuedElected::<T>::exists());
log!(info, "QueuedScore.exits()? {:?}", QueuedScore::<T>::exists());
// these must exist.
assert!(
IsCurrentSessionFinal::<T>::exists(),
"IsCurrentSessionFinal storage item not found!"
);
assert!(EraElectionStatus::<T>::exists(), "EraElectionStatus storage item not found!");
Ok(())
}
/// Migrate storage to v6.
pub fn migrate<T: Config>() -> Weight {
log!(info, "Migrating staking to Releases::V6_0_0");
SnapshotValidators::<T>::kill();
SnapshotNominators::<T>::kill();
QueuedElected::<T>::kill();
QueuedScore::<T>::kill();
EraElectionStatus::<T>::kill();
IsCurrentSessionFinal::<T>::kill();
StorageVersion::<T>::put(Releases::V6_0_0);
log!(info, "Done.");
T::DbWeight::get().writes(6 + 1)
}
}