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Runtime Upgrade ref docs and Single Block Migration example pallet (#1554)

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Closes https://github.com/paritytech/polkadot-sdk-docs/issues/55

- Changes 'current storage version' terminology to less ambiguous
'in-code storage version' (suggestion by @ggwpez)
- Adds a new example pallet `pallet-example-single-block-migrations`
- Adds a new reference doc to replace
https://docs.substrate.io/maintain/runtime-upgrades/ (temporarily living
in the pallet while we wait for developer hub PR to merge)
- Adds documentation for the `storage_alias` macro
- Improves `trait Hooks` docs 
- Improves `trait GetStorageVersion` docs
- Update the suggested patterns for using `VersionedMigration`, so that
version unchecked migrations are never exported
- Prevents accidental usage of version unchecked migrations in runtimes

https://github.com/paritytech/substrate/pull/14421#discussion_r1255467895
- Unversioned migration code is kept inside `mod version_unchecked`,
versioned code is kept in `pub mod versioned`
- It is necessary to use modules to limit visibility because the inner
migration must be `pub`. See
https://github.com/rust-lang/rust/issues/30905 and

https://internals.rust-lang.org/t/lang-team-minutes-private-in-public-rules/4504/40
for more.

### todo

- [x] move to reference docs to proper place within sdk-docs (now that
https://github.com/paritytech/polkadot-sdk/pull/2102 is merged)
- [x] prdoc

---------

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Co-authored-by: Juan <juangirini@gmail.com>
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: command-bot <>
Co-authored-by: gupnik <nikhilgupta.iitk@gmail.com>
This commit is contained in:
Liam Aharon
2024-02-28 18:32:02 +11:00
committed by GitHub
parent 7ec0b8741b
commit 12ce4f7d04
87 changed files with 1222 additions and 369 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/frame/society/src/tests.rs
+22 -22
View File
@@ -18,7 +18,7 @@
//! Tests for the module.
use super::*;
use migrations::old;
use migrations::v0;
use mock::*;
use frame_support::{assert_noop, assert_ok};
@@ -32,41 +32,41 @@ use RuntimeOrigin as Origin;
#[test]
fn migration_works() {
EnvBuilder::new().founded(false).execute(|| {
use old::Vote::*;
use v0::Vote::*;
// Initialise the old storage items.
Founder::<Test>::put(10);
Head::<Test>::put(30);
old::Members::<Test, ()>::put(vec![10, 20, 30]);
old::Vouching::<Test, ()>::insert(30, Vouching);
old::Vouching::<Test, ()>::insert(40, Banned);
old::Strikes::<Test, ()>::insert(20, 1);
old::Strikes::<Test, ()>::insert(30, 2);
old::Strikes::<Test, ()>::insert(40, 5);
old::Payouts::<Test, ()>::insert(20, vec![(1, 1)]);
old::Payouts::<Test, ()>::insert(
v0::Members::<Test, ()>::put(vec![10, 20, 30]);
v0::Vouching::<Test, ()>::insert(30, Vouching);
v0::Vouching::<Test, ()>::insert(40, Banned);
v0::Strikes::<Test, ()>::insert(20, 1);
v0::Strikes::<Test, ()>::insert(30, 2);
v0::Strikes::<Test, ()>::insert(40, 5);
v0::Payouts::<Test, ()>::insert(20, vec![(1, 1)]);
v0::Payouts::<Test, ()>::insert(
30,
(0..=<Test as Config>::MaxPayouts::get())
.map(|i| (i as u64, i as u64))
.collect::<Vec<_>>(),
);
old::SuspendedMembers::<Test, ()>::insert(40, true);
v0::SuspendedMembers::<Test, ()>::insert(40, true);
old::Defender::<Test, ()>::put(20);
old::DefenderVotes::<Test, ()>::insert(10, Approve);
old::DefenderVotes::<Test, ()>::insert(20, Approve);
old::DefenderVotes::<Test, ()>::insert(30, Reject);
v0::Defender::<Test, ()>::put(20);
v0::DefenderVotes::<Test, ()>::insert(10, Approve);
v0::DefenderVotes::<Test, ()>::insert(20, Approve);
v0::DefenderVotes::<Test, ()>::insert(30, Reject);
old::SuspendedCandidates::<Test, ()>::insert(50, (10, Deposit(100)));
v0::SuspendedCandidates::<Test, ()>::insert(50, (10, Deposit(100)));
old::Candidates::<Test, ()>::put(vec![
v0::Candidates::<Test, ()>::put(vec![
Bid { who: 60, kind: Deposit(100), value: 200 },
Bid { who: 70, kind: Vouch(30, 30), value: 100 },
]);
old::Votes::<Test, ()>::insert(60, 10, Approve);
old::Votes::<Test, ()>::insert(70, 10, Reject);
old::Votes::<Test, ()>::insert(70, 20, Approve);
old::Votes::<Test, ()>::insert(70, 30, Approve);
v0::Votes::<Test, ()>::insert(60, 10, Approve);
v0::Votes::<Test, ()>::insert(70, 10, Reject);
v0::Votes::<Test, ()>::insert(70, 20, Approve);
v0::Votes::<Test, ()>::insert(70, 30, Approve);
let bids = (0..=<Test as Config>::MaxBids::get())
.map(|i| Bid {
@@ -75,7 +75,7 @@ fn migration_works() {
value: 10u64 + i as u64,
})
.collect::<Vec<_>>();
old::Bids::<Test, ()>::put(bids);
v0::Bids::<Test, ()>::put(bids);
migrations::from_original::<Test, ()>(&mut [][..]).expect("migration failed");
migrations::assert_internal_consistency::<Test, ()>();