fix contract semver (#410)

.solhint.json

@@ -1,6 +1,7 @@
 {
   "extends": "solhint:recommended",
   "rules": {
+    "compiler-version": ["error","^0.8.0"],
     "func-visibility": ["warn",{"ignoreConstructors":true}],
     "reason-string": ["warn",{"maxLength":64}],
     "no-inline-assembly": "off",

common/config.go

@@ -100,7 +100,7 @@ func StagenetConfig() *Config {
 				Port: 38081,
 			},
 		},
-		SwapCreatorAddr: ethcommon.HexToAddress("0x55D20fF84815795CED5efF61168f5258274A3f87"),
+		SwapCreatorAddr: ethcommon.HexToAddress("0xAFEAB9DBD7977c101A71E57dFA36450F2f1A5E9F"),
 		ForwarderAddr:   ethcommon.HexToAddress("0xa030E074b8398005a454CB7c51E9b7CDb966744a"),
 		Bootnodes: []string{
 			"/ip4/134.122.115.208/tcp/9900/p2p/12D3KooWDqCzbjexHEa8Rut7bzxHFpRMZyDRW1L6TGkL1KY24JH5",

ethereum/contracts/AggregatorV3Interface.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity 0.8.19 .0;
+pragma solidity ^0.8.19;
 
 //
 // Contract comes from here:

ethereum/contracts/Context.sol

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
 // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
 
-pragma solidity 0.8.19 .0;
+pragma solidity ^0.8.19;
 
 /**
  * @dev Provides information about the current execution context, including the

ethereum/contracts/ERC20.sol

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
 // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/ERC20.sol)
 
-pragma solidity ^0.8.0 .0;
+pragma solidity ^0.8.0;
 
 import {IERC20} from "./IERC20.sol";
 import {IERC20Metadata} from "./IERC20Metadata.sol";

ethereum/contracts/ERC2771Context.sol

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
 // OpenZeppelin Contracts (last updated v4.7.0) (metatx/ERC2771Context.sol)
 
-pragma solidity 0.8.19 .0;
+pragma solidity ^0.8.19;
 
 import {Context} from "./Context.sol";
 

ethereum/contracts/IERC20.sol

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
 // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
 
-pragma solidity ^0.8.0 .0;
+pragma solidity ^0.8.0;
 
 /**
  * @dev Interface of the ERC20 standard as defined in the EIP.

ethereum/contracts/IERC20Metadata.sol

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
 // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
 
-pragma solidity ^0.8.0 .0;
+pragma solidity ^0.8.0;
 
 import {IERC20} from "./IERC20.sol";
 

ethereum/contracts/Secp256k1.sol

@@ -2,7 +2,7 @@
 // Implemention based on Vitalik's idea:
 // https://ethresear.ch/t/you-can-kinda-abuse-ecrecover-to-do-ecmul-in-secp256k1-today
 
-pragma solidity 0.8.19 .0;
+pragma solidity ^0.8.19;
 
 contract Secp256k1 {
     // solhint-disable-next-line

ethereum/contracts/SwapCreator.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: LGPLv3
-pragma solidity 0.8.19 .0;
+pragma solidity ^0.8.19;
 
 import {ERC2771Context} from "./ERC2771Context.sol";
 import {IERC20} from "./IERC20.sol";
@@ -31,11 +31,11 @@ contract SwapCreator is ERC2771Context, Secp256k1 {
         bytes32 pubKeyRefund;
         // timestamp before which Alice can call either `setReady` or `refund`
         uint256 timeout0;
-        // timestamp after which Bob cannot claim, only Alice can refund.
+        // timestamp after which Bob cannot claim, only Alice can refund
         uint256 timeout1;
         // the asset being swapped: equal to address(0) for ETH, or an ERC-20 token address
         address asset;
-        // the value of this swap.
+        // the value of this swap
         uint256 value;
         // choose random
         uint256 nonce;
@@ -186,7 +186,7 @@ contract SwapCreator is ERC2771Context, Secp256k1 {
             // TODO: this will FAIL for fee-on-transfer or rebasing tokens if the token
             // transfer reverts (i.e. if this contract does not contain _swap.value tokens),
             // exposing Bob's secret while giving him nothing
-
+            //
             // potential solution: wrap tokens into shares instead of absolute values
             // swap.value would then contain the share of the token
             IERC20(_swap.asset).transfer(_swap.claimer, _swap.value);
@@ -211,7 +211,7 @@ contract SwapCreator is ERC2771Context, Secp256k1 {
             // TODO: this will FAIL for fee-on-transfer or rebasing tokens if the token
             // transfer reverts (i.e. if this contract does not contain _swap.value tokens),
             // exposing Bob's secret while giving him nothing
-
+            //
             // potential solution: wrap tokens into shares instead of absolute values
             // swap.value would then contain the share of the token
             IERC20(_swap.asset).transfer(_swap.claimer, _swap.value - fee);
@@ -250,7 +250,7 @@ contract SwapCreator is ERC2771Context, Secp256k1 {
         verifySecret(_s, _swap.pubKeyRefund);
         emit Refunded(swapID, _s);
 
-        // send asset back to owner==caller (Alice)
+        // send asset back to swap owner
         swaps[swapID] = Stage.COMPLETED;
         if (_swap.asset == address(0)) {
             _swap.owner.transfer(_swap.value);

ethereum/contracts/TestERC20.sol

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: MIT
 
-pragma solidity ^0.8.0 .0;
+pragma solidity ^0.8.0;
 
 import {ERC20} from "./ERC20.sol";