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Move PalletVersion away from the crate version (#9165)

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* Move `PalletVersion` away from the crate version

Before this pr, `PalletVersion` was referring to the crate version that
hosted the pallet. This pr introduces a custom `package.metadata.frame`
section in the `Cargo.toml` that can contain a `pallet-version` key
value pair. While the value is expected to be a valid u16. If this
key/value pair isn't given, the version is set to 1.

It also changes the `PalletVersion` declaration. We now only have one
`u16` that represents the version. Not a major/minor/patch version. As
the old `PalletVersion` was starting with the `u16` major, decoding the
old values will work.

* Overhaul the entire implementation

- Drop PalletVersion
- Introduce StorageVersion
- StorageVersion needs to be set in the crate and set for the macros
- Added migration

* Fix migrations

* Review feedback

* Remove unneeded dep

* remove pub consts

* Brings back logging and implements `GetStorageVersion`

* Return weight from migration

* Fmt and remove unused import

* Update frame/support/src/dispatch.rs

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

* Update frame/support/src/traits/metadata.rs

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>
This commit is contained in:
Bastian Köcher
2021-07-27 23:21:27 +02:00
committed by GitHub
parent 988c399983
commit 4fe55f0bcb
24 changed files with 550 additions and 657 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/frame/support/procedural/src/pallet/expand/hooks.rs
+7 -15
View File
@@ -40,9 +40,11 @@ pub fn expand_hooks(def: &mut Def) -> proc_macro2::TokenStream {
quote::quote! {
#frame_support::log::info!(
target: #frame_support::LOG_TARGET,
"⚠️ {} declares internal migrations (which *might* execute), setting storage version to {:?}",
"⚠️ {} declares internal migrations (which *might* execute). \
On-chain `{:?}` vs current storage version `{:?}`",
pallet_name,
new_storage_version,
<Self as #frame_support::traits::GetStorageVersion>::on_chain_storage_version(),
<Self as #frame_support::traits::GetStorageVersion>::current_storage_version(),
);
}
} else {
@@ -50,9 +52,8 @@ pub fn expand_hooks(def: &mut Def) -> proc_macro2::TokenStream {
quote::quote! {
#frame_support::log::info!(
target: #frame_support::LOG_TARGET,
"✅ no migration for {}, setting storage version to {:?}",
"✅ no migration for {}",
pallet_name,
new_storage_version,
);
}
};
@@ -131,7 +132,6 @@ pub fn expand_hooks(def: &mut Def) -> proc_macro2::TokenStream {
);
// log info about the upgrade.
let new_storage_version = #frame_support::crate_to_pallet_version!();
let pallet_name = <
<T as #frame_system::Config>::PalletInfo
as
@@ -139,19 +139,11 @@ pub fn expand_hooks(def: &mut Def) -> proc_macro2::TokenStream {
>::name::<Self>().unwrap_or("<unknown pallet name>");
#log_runtime_upgrade
let result = <
<
Self as #frame_support::traits::Hooks<
<T as #frame_system::Config>::BlockNumber
>
>::on_runtime_upgrade();
new_storage_version.put_into_storage::<<T as #frame_system::Config>::PalletInfo, Self>();
let additional_write = <
<T as #frame_system::Config>::DbWeight as #frame_support::traits::Get<_>
>::get().writes(1);
result.saturating_add(additional_write)
>::on_runtime_upgrade()
}
#[cfg(feature = "try-runtime")]
substrate/frame/support/procedural/src/pallet/expand/pallet_struct.rs
+15 -13
View File
@@ -18,7 +18,7 @@
use crate::pallet::{expand::merge_where_clauses, parse::helper::get_doc_literals, Def};
/// * Add derive trait on Pallet
/// * Implement GetPalletVersion on Pallet
/// * Implement GetStorageVersion on Pallet
/// * Implement OnGenesis on Pallet
/// * Implement ModuleErrorMetadata on Pallet
/// * declare Module type alias for construct_runtime
@@ -151,6 +151,12 @@ pub fn expand_pallet_struct(def: &mut Def) -> proc_macro2::TokenStream {
}
);
let storage_version = if let Some(v) = def.pallet_struct.storage_version.as_ref() {
quote::quote! { #v }
} else {
quote::quote! { #frame_support::traits::StorageVersion::default() }
};
quote::quote_spanned!(def.pallet_struct.attr_span =>
#module_error_metadata
@@ -161,21 +167,17 @@ pub fn expand_pallet_struct(def: &mut Def) -> proc_macro2::TokenStream {
#[allow(dead_code)]
pub type Module<#type_decl_gen> = #pallet_ident<#type_use_gen>;
// Implement `GetPalletVersion` for `Pallet`
impl<#type_impl_gen> #frame_support::traits::GetPalletVersion
// Implement `GetStorageVersion` for `Pallet`
impl<#type_impl_gen> #frame_support::traits::GetStorageVersion
for #pallet_ident<#type_use_gen>
#config_where_clause
{
fn current_version() -> #frame_support::traits::PalletVersion {
#frame_support::crate_to_pallet_version!()
fn current_storage_version() -> #frame_support::traits::StorageVersion {
#storage_version
}
fn storage_version() -> Option<#frame_support::traits::PalletVersion> {
let key = #frame_support::traits::PalletVersion::storage_key::<
<T as #frame_system::Config>::PalletInfo, Self
>().expect("Every active pallet has a name in the runtime; qed");
#frame_support::storage::unhashed::get(&key)
fn on_chain_storage_version() -> #frame_support::traits::StorageVersion {
#frame_support::traits::StorageVersion::get::<Self>()
}
}
@@ -185,8 +187,8 @@ pub fn expand_pallet_struct(def: &mut Def) -> proc_macro2::TokenStream {
#config_where_clause
{
fn on_genesis() {
#frame_support::crate_to_pallet_version!()
.put_into_storage::<<T as #frame_system::Config>::PalletInfo, Self>();
let storage_version = #storage_version;
storage_version.put::<Self>();
}
}