refactor: migrate erc20 module's bridge and ibc token to crosschain module

[zakir-code]

Summary by CodeRabbit

• New Features
  • Integrated ERC20 token management into the upgrade process, allowing for seamless migration of ERC20 tokens to the crosschain module.
• Improvements
  • Enhanced error handling and logging for better visibility during the upgrade process.

[coderabbitai]

Walkthrough

The changes in the upgrade.go file of the v8 package enhance the upgrade handler's functionality by integrating ERC20 token migration into the upgrade process. A new function, migrateERC20TokenToCrosschain, is introduced to manage the migration of ERC20 tokens, including balance retrieval and existence checks within the ERC20 keeper. The control flow is updated to incorporate this migration step, and error handling is improved for the new function. Logging statements are also updated to provide better insights into the upgrade process.

Changes

File	Change Summary
app/upgrades/v8/upgrade.go	Added import for erc20keeper, introduced migrateERC20TokenToCrosschain function, updated CreateUpgradeHandler to include this new function, and enhanced error handling and logging for the migration process.

Possibly related PRs

• refactor(crosschain): simplify interface references for the erc20 module #731: Simplifies interface references for the ERC20 module, directly related to ERC20 token management integration.
• refactor(precompile): migrate cross-chain logic to cosmos code #741: Involves migrating cross-chain logic, aligning with the focus on ERC20 token migration.
• refactor: migrate bridge token data and update metadata alias #749: Updates bridge token data and metadata alias, relevant to ERC20 token migration.
• chore: migrate bridge balances #760: Focuses on migrating bridge balances, closely related to ERC20 token migration.
• refactor: avoid converting origin coin to ERC20 during crosschain refund #762: Enhances the refund process for cross-chain transactions, relevant to handling ERC20 tokens during migration.

🐇 In the meadow where tokens play,
A new path opens, bright as day.
With ERC20s now on the roam,
Crosschain journeys lead them home.
Migrations smooth, with logs that cheer,
Upgrades bring joy, let’s hop and steer! 🌼

---

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[coderabbitai]

Actionable comments posted: 2

🧹 Outside diff range and nitpick comments (1)

app/upgrades/v8/upgrade.go (1)

173-174: Check for empty coin set before transferring tokens

Before calling SendCoinsFromModuleToModule, it's prudent to verify that migrateCoins is not empty to avoid unnecessary operations or potential errors.

Add a condition to ensure there are coins to migrate:

    ctx.Logger().Info("migrate erc20 bridge/ibc token to crosschain", "coins", migrateCoins.String())
+   if migrateCoins.Empty() {
+       return nil
+   }
    return bankKeeper.SendCoinsFromModuleToModule(ctx, erc20types.ModuleName, crosschaintypes.ModuleName, migrateCoins)

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between dffb21a and 32f4940.

📒 Files selected for processing (1)

• app/upgrades/v8/upgrade.go (3 hunks)

🧰 Additional context used

🔇 Additional comments (2)

app/upgrades/v8/upgrade.go (2)

24-26: Imports for ERC20 module added correctly

The necessary imports for erc20keeper, erc20v8, and erc20types have been appropriately added to support the ERC20 token migration functionality.

---

56-58: Integrate ERC20 token migration with proper error handling

The call to migrateERC20TokenToCrosschain has been added to the upgrade handler. Ensure that this integration aligns with the existing error handling patterns within CreateUpgradeHandler.