chore: Add migrate entry point

Cargo.toml

@@ -5,7 +5,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.1.0"
+version = "0.1.1"
 edition = "2021"
 license = "MIT"
 authors = [ "Pau Yankovski <pyncz.dev@gmail.com>" ]

core/Cargo.toml

@@ -28,6 +28,7 @@ serde = { version = "1.0.103", default-features = false, features = [ "derive" ]
 serde_json = "1.0"
 schemars = "0.8.1"
 thiserror = "1.0"
+semver = "1.0"
 cosmwasm-schema = "1.1.4"
 itertools = "0.12.0"
 

core/src/error.rs

@@ -6,6 +6,23 @@ pub enum ContractError {
     #[error("{0}")]
     Std(#[from] StdError),
 
+    // Migration errors
+    #[error("Semver parsing error: {0}")]
+    SemVer(String),
+
+    #[error("Cannot change contract name from \"{original_name}\" to \"{new_name}\"! The name should be immutable")]
+    InvalidMigrationContractName {
+        original_name: String,
+        new_name: String,
+    },
+
+    #[error("Cannot change contract version from {current_version} to {new_version}! New version should be higher than the current one")]
+    InvalidMigrationVersion {
+        current_version: String,
+        new_version: String,
+    },
+
+    // Execution errors
     #[error("Unauthorized! {sender} is not contract admin")]
     NotAdmin { sender: Addr },
 
@@ -40,5 +57,11 @@ pub enum ContractError {
     NotEquipped {},
 }
 
+impl From<semver::Error> for ContractError {
+    fn from(err: semver::Error) -> Self {
+        Self::SemVer(err.to_string())
+    }
+}
+
 pub type ContractResult<T = ()> = Result<T, ContractError>;
 pub type ContractResponse = ContractResult<Response>;

example/client/package.json

@@ -1,7 +1,7 @@
 {
   "name": "fiend-frens-client",
   "type": "module",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "A demo website to view, equip and unequip trait tokens for the **Fiend Frens** NFTs",
   "scripts": {
     "dev": "nuxt dev",

example/contracts/cw-fiend-frens-constructor/Cargo.toml

@@ -25,3 +25,4 @@ cosmwasm-schema = "^1.2"
 cosmwasm-std = "^1.2"
 cw2 = "^1.1"
 cw-fiend-frens-shared = { path = "../shared" }
+semver = "1"

example/contracts/cw-fiend-frens-constructor/src/bin/schema.rs

@@ -1,10 +1,12 @@
 use cosmwasm_schema::write_api;
+use cosmwasm_std::Empty;
 use cw_constructor::msg::{ExecuteMsg, InstantiateMsg, QueryMsg};
 
 fn main() {
     write_api! {
         instantiate: InstantiateMsg,
         execute: ExecuteMsg,
-        query: QueryMsg
+        query: QueryMsg,
+        migrate: Empty
     }
 }

example/contracts/cw-fiend-frens-constructor/src/lib.rs

@@ -2,6 +2,7 @@ use cw_constructor::contract::Contract as ConstructorContract;
 use cw_constructor::error::ContractResponse;
 use cw_constructor::msg::{ExecuteMsg, InstantiateMsg, QueryMsg};
 use cw_fiend_frens_shared::metadata::{Extension, MergedExtension, TraitExtension};
+use semver::Version;
 
 // Version info for migration
 const CONTRACT_NAME: &str = "fiend-frens-constructor";
@@ -14,7 +15,8 @@ pub mod entry {
 
     #[cfg(not(feature = "library"))]
     use cosmwasm_std::entry_point;
-    use cosmwasm_std::{Binary, Deps, DepsMut, Env, MessageInfo, StdResult};
+    use cosmwasm_std::{Binary, Deps, DepsMut, Empty, Env, MessageInfo, Response, StdResult};
+    use cw_constructor::error::ContractError;
 
     #[cfg_attr(not(feature = "library"), entry_point)]
     pub fn instantiate(
@@ -45,4 +47,35 @@ pub mod entry {
         let contract = Contract::default();
         contract.query(deps, env, msg)
     }
+
+    #[cfg_attr(not(feature = "library"), entry_point)]
+    pub fn migrate(deps: DepsMut, _env: Env, _msg: Empty) -> ContractResponse {
+        // Current contract state
+        let current = cw2::get_contract_version(deps.storage)?;
+        let original_name = current.contract;
+        let current_version = current.version;
+        let current_version_semver: Version = current_version.parse()?;
+
+        // New state to migrate to
+        let new_name = CONTRACT_NAME.to_string();
+        let new_version: String = CONTRACT_VERSION.to_string();
+        let new_version_semver: Version = new_version.parse()?;
+
+        // Validate migration params
+        if original_name != new_name {
+            return Err(ContractError::InvalidMigrationContractName {
+                original_name,
+                new_name,
+            });
+        }
+        if current_version_semver >= new_version_semver {
+            return Err(ContractError::InvalidMigrationVersion {
+                current_version,
+                new_version,
+            });
+        }
+
+        cw2::set_contract_version(deps.storage, CONTRACT_NAME, CONTRACT_VERSION)?;
+        Ok(Response::default())
+    }
 }

example/scripts/instantiate.config.json

@@ -326,7 +326,7 @@
     "tx": "278E32692E897F8EF1EC27C214572DD095DC7973913D6102D57F65753B77BAEC"
   },
   "fiend-frens-constructor": {
-    "code_id": "2566",
+    "code_id": "2912",
     "address": "archway13cj0z0zgca02wdlum855fapu9u7hfprwqcczefr2mf0ep75lh7ms3anpjy",
     "admin": {
       "$var": "sender"

example/scripts/package.json

@@ -1,7 +1,7 @@
 {
   "name": "fiend-frens-scripts",
   "type": "module",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "Scripts to upload NFTs' assets on IPFS, instantiate example contracts etc",
   "scripts": {
     "upload": "esno ./src/upload/index.ts",

package.json

@@ -1,7 +1,7 @@
 {
   "name": "cw-constructor",
   "type": "module",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "Constructor contract to bind NFTs as traits for another NFT",
   "author": "Pau Yankovski <pyncz.dev@gmail.com>",
   "license": "MIT",