v2

Documentation

Overview

Package v2 creates in-place store migrations for fixing tracking delegations with vesting accounts. ref: https://github.com/T-ragon/cosmos-sdk/issues/8601 ref: https://github.com/T-ragon/cosmos-sdk/issues/8812

The migration script modifies x/auth state, hence lives in the `x/auth/legacy` folder. However, it needs access to staking and bank state. To avoid cyclic dependencies, we cannot import those 2 keepers in this file. To solve this, we use the baseapp router to do inter-module querying, by importing the `baseapp.QueryRouter grpc.Server`. This is really hacky.

PLEASE DO NOT REPLICATE THIS PATTERN IN YOUR OWN APP.

Proposals to refactor this file have been made in: https://github.com/T-ragon/cosmos-sdk/issues/9070 The preferred solution is to use inter-module communication (ADR-033), and this file will be refactored to use ADR-033 once it's ready.

Index

• func MigrateAccount(ctx sdk.Context, account sdk.AccountI, queryServer grpc.Server) (sdk.AccountI, error)

Functions

func MigrateAccount

func MigrateAccount(ctx sdk.Context, account sdk.AccountI, queryServer grpc.Server) (sdk.AccountI, error)

MigrateAccount migrates vesting account to make the DelegatedVesting and DelegatedFree fields correctly track delegations. References: https://github.com/T-ragon/cosmos-sdk/issues/8601, https://github.com/T-ragon/cosmos-sdk/issues/8812

We use the baseapp.QueryRouter here to do inter-module state querying. PLEASE DO NOT REPLICATE THIS PATTERN IN YOUR OWN APP.