feat: support upgradeable Git3hub

contracts/Git3Hub.sol

@@ -5,7 +5,7 @@ pragma solidity ^0.8.0;
 // import "@openzeppelin/contracts/access/Ownable.sol";
 import "./v2/LargeStorageManagerV2.sol";
 
-contract Git3Hub is LargeStorageManagerV2 {
+contract Git3HubStorage {
     struct refInfo {
         bytes20 hash;
         uint96 index;
@@ -16,23 +16,17 @@ contract Git3Hub is LargeStorageManagerV2 {
         bytes name;
     }
 
-    event RepoCreated(bytes repoName, address owner);
-    event RepoOwnerTransfer(bytes repoName, address oldOwner, address newOwner);
-    event PushRef(bytes repoName, bytes ref);
-
     mapping(bytes => address) public repoNameToOwner;
     mapping(bytes => refInfo) public nameToRefInfo; // dev => {hash: 0x1234..., index: 1 }
     mapping(bytes => bytes[]) public repoNameToRefs; // [main, dev, test, staging]
-
-    function _convertRefInfo(
-        bytes memory repoName,
-        refInfo memory info
-    ) internal view returns (refData memory res) {
-        res.hash = info.hash;
-        res.name = repoNameToRefs[repoName][info.index];
 }
 
-    constructor() LargeStorageManagerV2(0) {}
+contract Git3Hub is Git3HubStorage, LargeStorageManagerV2 {
+    event RepoCreated(bytes repoName, address owner);
+    event RepoOwnerTransfer(bytes repoName, address oldOwner, address newOwner);
+    event PushRef(bytes repoName, bytes ref);
+
+    constructor() LargeStorageManagerV2() {}
 
     modifier onlyOwner(bytes memory repoName) {
         require(repoNameToOwner[repoName] == msg.sender, "only owner");
@@ -231,4 +225,12 @@ contract Git3Hub is LargeStorageManagerV2 {
         repoNameToRefs[repoName].pop();
         delete nameToRefInfo[fullName];
     }
+
+    function _convertRefInfo(
+        bytes memory repoName,
+        refInfo memory info
+    ) internal view returns (refData memory res) {
+        res.hash = info.hash;
+        res.name = repoNameToRefs[repoName][info.index];
+    }
 }

contracts/v2/LargeStorageManagerV2.sol

@@ -10,16 +10,12 @@ contract LargeStorageManagerV2 {
     using SlotHelper for bytes32;
     using SlotHelper for address;
 
-    uint8 internal immutable SLOT_LIMIT;
+    uint8 internal constant SLOT_LIMIT = 0;
 
     mapping(bytes32 => mapping(uint256 => bytes32)) internal keyToMetadata;
     mapping(bytes32 => mapping(uint256 => mapping(uint256 => bytes32)))
         internal keyToSlots;
 
-    constructor(uint8 slotLimit) {
-        SLOT_LIMIT = slotLimit;
-    }
-
     function isOptimize() public view returns (bool) {
         return SLOT_LIMIT > 0;
     }

contracts/v2/LargerStorageManagerV2Test.sol

@@ -4,8 +4,6 @@ pragma solidity ^0.8.0;
 import "./LargeStorageManagerV2.sol";
 
 contract LargeStorageManagerV2Test is LargeStorageManagerV2 {
-    constructor(uint8 slotLimit) LargeStorageManagerV2(slotLimit) {}
-
     function get(bytes32 key) public view returns (bytes memory, bool) {
         (bytes memory data, bool found) = _get(key);
         return (data, found);

hardhat.config.ts

@@ -2,6 +2,8 @@ require("dotenv").config();
 
 import { HardhatUserConfig } from "hardhat/config";
 import "@nomicfoundation/hardhat-toolbox";
+import "@nomiclabs/hardhat-web3";
+import "@nomiclabs/hardhat-ethers";
 import { NetworkDefinition, EtherscanConfig } from "./local.config";
 
 const config: HardhatUserConfig = {

package.json

@@ -18,6 +18,7 @@
   "homepage": "https://github.com/git3protocol/git3-contract#readme",
   "devDependencies": {
     "@nomicfoundation/hardhat-toolbox": "^2.0.1",
+    "@nomiclabs/hardhat-web3": "^2.0.0",
     "@typechain/ethers-v5": "^10.2.0",
     "@typechain/hardhat": "^6.1.5",
     "dotenv": "^16.0.3",
@@ -35,6 +36,7 @@
     "@nomiclabs/hardhat-ethers": "^2.2.2",
     "@nomiclabs/hardhat-etherscan": "^3.1.5",
     "@openzeppelin/contracts": "^4.8.1",
+    "@openzeppelin/contracts-upgradeable": "^4.8.1",
     "chai": "^4.3.7",
     "typechain": "^8.1.1"
   }

test/git3-test.js

@@ -8,6 +8,79 @@ var ToBig = (x) => ethers.BigNumber.from(x);
 let ETH = ethers.BigNumber.from(10).pow(18);
 
 describe("Git3 Test", function () {
+  it("Check Upgradeable", async function () {
+    let repoName = Buffer.from("test");
+    let [operator, acc1, acc2] = await ethers.getSigners();
+    const Git3 = await ethers.getContractFactory("Git3Hub");
+    const git3 = await Git3.deploy();
+    await git3.deployed();
+
+    let git3Upgraded = await Git3.connect(acc2).deploy();
+    await git3Upgraded.deployed();
+
+    let factory1 = await ethers.getContractFactory("UpgradeableProxy");
+    // Proxy don't need to init Git3 contract because the constructor is empty.
+    let initSelector = "0x";
+    let proxyInstance = await factory1
+      .connect(operator)
+      .deploy(git3.address, acc1.address, initSelector);
+    await proxyInstance.deployed();
+
+    let git3Proxy = await ethers.getContractAt(
+      "Git3Hub",
+      proxyInstance.address
+    );
+    await git3Proxy.createRepo(repoName);
+    await git3Proxy.upload(repoName, "0x616263", "0x112233");
+    expect(await git3Proxy.download(repoName, "0x616263")).to.eql([
+      "0x112233",
+      true,
+    ]);
+
+    const adminSlot =
+      "0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103";
+    let actualAdmin = await web3.eth.getStorageAt(
+      proxyInstance.address,
+      adminSlot
+    );
+    let actualA = web3.utils.toBN(actualAdmin).toString();
+    let expectA = web3.utils.toBN(acc1.address).toString();
+    expect(actualA).to.equal(expectA);
+
+    await proxyInstance.connect(acc1).changeAdmin(acc2.address);
+    actualAdmin = await web3.eth.getStorageAt(proxyInstance.address, adminSlot);
+    actualA = web3.utils.toBN(actualAdmin).toString();
+    expectA = web3.utils.toBN(acc2.address).toString();
+    expect(actualA).to.equal(expectA);
+
+    const ImplementationSlot =
+      "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc";
+    let actualImplement = await web3.eth.getStorageAt(
+      proxyInstance.address,
+      ImplementationSlot
+    );
+    let actualI = web3.utils.toBN(actualImplement).toString();
+    let expectI = web3.utils.toBN(git3.address).toString();
+    expect(actualI).to.equal(expectI);
+
+    //****upgrade contract***//
+    // await expect(proxyInstance.connect(acc2).upgradeToAndCall(git3Upgraded.address,initSelector)).to.be.revertedWith("Initializable: contract is already initialized")
+    await proxyInstance.connect(acc2).upgradeTo(git3Upgraded.address);
+
+    actualImplement = await web3.eth.getStorageAt(
+      proxyInstance.address,
+      ImplementationSlot
+    );
+    actualI = web3.utils.toBN(actualImplement).toString();
+    expectI = web3.utils.toBN(git3Upgraded.address).toString();
+    expect(actualI).to.equal(expectI);
+
+    expect(await git3Proxy.download(repoName, "0x616263")).to.eql([
+      "0x112233",
+      true,
+    ]);
+  });
+
   it("upload/download/remove", async function () {
     const Git3 = await ethers.getContractFactory("Git3Hub");
     const git3 = await Git3.deploy();

test/large-storage-helper-v2-test.js

@@ -10,7 +10,7 @@ let ETH = ethers.BigNumber.from("10").pow("18");
 describe("FlatDirectory Test", function () {
   it("read/write", async function () {
     const FlatDirectory = await ethers.getContractFactory(contractName);
-    const fd = await FlatDirectory.deploy(0);
+    const fd = await FlatDirectory.deploy();
     await fd.deployed();
 
     await fd.putChunk(key, 0, "0x112233");
@@ -26,7 +26,7 @@ describe("FlatDirectory Test", function () {
 
   it("read/write chunks", async function () {
     const FlatDirectory = await ethers.getContractFactory(contractName);
-    const fd = await FlatDirectory.deploy(0);
+    const fd = await FlatDirectory.deploy();
     await fd.deployed();
 
     let data0 = Array.from({ length: 1024 }, () =>
@@ -51,7 +51,7 @@ describe("FlatDirectory Test", function () {
 
   it("write/remove chunks", async function () {
     const FlatDirectory = await ethers.getContractFactory(contractName);
-    const fd = await FlatDirectory.deploy(0);
+    const fd = await FlatDirectory.deploy();
     await fd.deployed();
 
     expect(await fd.countChunks(key)).to.eql(ToBig(0));
@@ -88,7 +88,7 @@ describe("FlatDirectory Test", function () {
 
   it("remove chunks and refund to user", async function () {
     const FlatDirectory = await ethers.getContractFactory(contractName);
-    const fd = await FlatDirectory.deploy(0);
+    const fd = await FlatDirectory.deploy();
     await fd.deployed();
 
     let stakeTokenNum = ETH;