Add SPX license identifier (#2235)

(cherry picked from commit 56de324)
OpenZeppelin · Jun 8, 2020 · fac773a · fac773a
1 parent 087d314
commit fac773a
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diff --git a/contracts/GSN/Context.sol b/contracts/GSN/Context.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 /*

diff --git a/contracts/GSN/GSNRecipient.sol b/contracts/GSN/GSNRecipient.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "./IRelayRecipient.sol";

diff --git a/contracts/GSN/GSNRecipientERC20Fee.sol b/contracts/GSN/GSNRecipientERC20Fee.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "./GSNRecipient.sol";

diff --git a/contracts/GSN/GSNRecipientSignature.sol b/contracts/GSN/GSNRecipientSignature.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "./GSNRecipient.sol";

diff --git a/contracts/GSN/IRelayHub.sol b/contracts/GSN/IRelayHub.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 /**

diff --git a/contracts/GSN/IRelayRecipient.sol b/contracts/GSN/IRelayRecipient.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 /**

diff --git a/contracts/access/AccessControl.sol b/contracts/access/AccessControl.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../utils/EnumerableSet.sol";

diff --git a/contracts/access/Ownable.sol b/contracts/access/Ownable.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../GSN/Context.sol";

diff --git a/contracts/cryptography/ECDSA.sol b/contracts/cryptography/ECDSA.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 /**

diff --git a/contracts/cryptography/MerkleProof.sol b/contracts/cryptography/MerkleProof.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 /**

diff --git a/contracts/introspection/ERC165.sol b/contracts/introspection/ERC165.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "./IERC165.sol";

diff --git a/contracts/introspection/ERC165Checker.sol b/contracts/introspection/ERC165Checker.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.2;
 
 /**

diff --git a/contracts/introspection/ERC1820Implementer.sol b/contracts/introspection/ERC1820Implementer.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "./IERC1820Implementer.sol";

diff --git a/contracts/introspection/IERC165.sol b/contracts/introspection/IERC165.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 /**

diff --git a/contracts/introspection/IERC1820Implementer.sol b/contracts/introspection/IERC1820Implementer.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 /**

diff --git a/contracts/introspection/IERC1820Registry.sol b/contracts/introspection/IERC1820Registry.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 /**

diff --git a/contracts/math/Math.sol b/contracts/math/Math.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 /**

diff --git a/contracts/math/SafeMath.sol b/contracts/math/SafeMath.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 /**

diff --git a/contracts/math/SignedSafeMath.sol b/contracts/math/SignedSafeMath.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 /**

diff --git a/contracts/mocks/AccessControlMock.sol b/contracts/mocks/AccessControlMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../access/AccessControl.sol";

diff --git a/contracts/mocks/AddressImpl.sol b/contracts/mocks/AddressImpl.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../utils/Address.sol";

diff --git a/contracts/mocks/ArraysImpl.sol b/contracts/mocks/ArraysImpl.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../utils/Arrays.sol";

diff --git a/contracts/mocks/ConditionalEscrowMock.sol b/contracts/mocks/ConditionalEscrowMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../payment/escrow/ConditionalEscrow.sol";

diff --git a/contracts/mocks/ContextMock.sol b/contracts/mocks/ContextMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../GSN/Context.sol";

diff --git a/contracts/mocks/CountersImpl.sol b/contracts/mocks/CountersImpl.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../utils/Counters.sol";

diff --git a/contracts/mocks/Create2Impl.sol b/contracts/mocks/Create2Impl.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../utils/Create2.sol";

diff --git a/contracts/mocks/ECDSAMock.sol b/contracts/mocks/ECDSAMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../cryptography/ECDSA.sol";

diff --git a/contracts/mocks/ERC165/ERC165InterfacesSupported.sol b/contracts/mocks/ERC165/ERC165InterfacesSupported.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../../introspection/IERC165.sol";

diff --git a/contracts/mocks/ERC165/ERC165NotSupported.sol b/contracts/mocks/ERC165/ERC165NotSupported.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 contract ERC165NotSupported { }
diff --git a/contracts/mocks/ERC165CheckerMock.sol b/contracts/mocks/ERC165CheckerMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../introspection/ERC165Checker.sol";

diff --git a/contracts/mocks/ERC165Mock.sol b/contracts/mocks/ERC165Mock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../introspection/ERC165.sol";

diff --git a/contracts/mocks/ERC1820ImplementerMock.sol b/contracts/mocks/ERC1820ImplementerMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../introspection/ERC1820Implementer.sol";

diff --git a/contracts/mocks/ERC20BurnableMock.sol b/contracts/mocks/ERC20BurnableMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../token/ERC20/ERC20Burnable.sol";

diff --git a/contracts/mocks/ERC20CappedMock.sol b/contracts/mocks/ERC20CappedMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../token/ERC20/ERC20Capped.sol";

diff --git a/contracts/mocks/ERC20DecimalsMock.sol b/contracts/mocks/ERC20DecimalsMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../token/ERC20/ERC20.sol";

diff --git a/contracts/mocks/ERC20Mock.sol b/contracts/mocks/ERC20Mock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../token/ERC20/ERC20.sol";

diff --git a/contracts/mocks/ERC20PausableMock.sol b/contracts/mocks/ERC20PausableMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../token/ERC20/ERC20Pausable.sol";

diff --git a/contracts/mocks/ERC20SnapshotMock.sol b/contracts/mocks/ERC20SnapshotMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../token/ERC20/ERC20Snapshot.sol";

diff --git a/contracts/mocks/ERC721BurnableMock.sol b/contracts/mocks/ERC721BurnableMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../token/ERC721/ERC721Burnable.sol";

diff --git a/contracts/mocks/ERC721GSNRecipientMock.sol b/contracts/mocks/ERC721GSNRecipientMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../token/ERC721/ERC721.sol";

diff --git a/contracts/mocks/ERC721Mock.sol b/contracts/mocks/ERC721Mock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../token/ERC721/ERC721.sol";

diff --git a/contracts/mocks/ERC721PausableMock.sol b/contracts/mocks/ERC721PausableMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../token/ERC721/ERC721Pausable.sol";

diff --git a/contracts/mocks/ERC721ReceiverMock.sol b/contracts/mocks/ERC721ReceiverMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../token/ERC721/IERC721Receiver.sol";

diff --git a/contracts/mocks/ERC777Mock.sol b/contracts/mocks/ERC777Mock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../GSN/Context.sol";

diff --git a/contracts/mocks/ERC777SenderRecipientMock.sol b/contracts/mocks/ERC777SenderRecipientMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../GSN/Context.sol";

diff --git a/contracts/mocks/EnumerableMapMock.sol b/contracts/mocks/EnumerableMapMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../utils/EnumerableMap.sol";

diff --git a/contracts/mocks/EnumerableSetMock.sol b/contracts/mocks/EnumerableSetMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../utils/EnumerableSet.sol";

diff --git a/contracts/mocks/EtherReceiverMock.sol b/contracts/mocks/EtherReceiverMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 contract EtherReceiverMock {

diff --git a/contracts/mocks/GSNRecipientERC20FeeMock.sol b/contracts/mocks/GSNRecipientERC20FeeMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../GSN/GSNRecipient.sol";

diff --git a/contracts/mocks/GSNRecipientMock.sol b/contracts/mocks/GSNRecipientMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "./ContextMock.sol";

diff --git a/contracts/mocks/GSNRecipientSignatureMock.sol b/contracts/mocks/GSNRecipientSignatureMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../GSN/GSNRecipient.sol";

diff --git a/contracts/mocks/MathMock.sol b/contracts/mocks/MathMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../math/Math.sol";

diff --git a/contracts/mocks/MerkleProofWrapper.sol b/contracts/mocks/MerkleProofWrapper.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import { MerkleProof } from "../cryptography/MerkleProof.sol";

diff --git a/contracts/mocks/OwnableMock.sol b/contracts/mocks/OwnableMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../access/Ownable.sol";

diff --git a/contracts/mocks/PausableMock.sol b/contracts/mocks/PausableMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../utils/Pausable.sol";

diff --git a/contracts/mocks/PullPaymentMock.sol b/contracts/mocks/PullPaymentMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../payment/PullPayment.sol";

diff --git a/contracts/mocks/ReentrancyAttack.sol b/contracts/mocks/ReentrancyAttack.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../GSN/Context.sol";

diff --git a/contracts/mocks/ReentrancyMock.sol b/contracts/mocks/ReentrancyMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../utils/ReentrancyGuard.sol";

diff --git a/contracts/mocks/SafeCastMock.sol b/contracts/mocks/SafeCastMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../utils/SafeCast.sol";

diff --git a/contracts/mocks/SafeERC20Helper.sol b/contracts/mocks/SafeERC20Helper.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../GSN/Context.sol";

diff --git a/contracts/mocks/SafeMathMock.sol b/contracts/mocks/SafeMathMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../math/SafeMath.sol";

diff --git a/contracts/mocks/SignedSafeMathMock.sol b/contracts/mocks/SignedSafeMathMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../math/SignedSafeMath.sol";

diff --git a/contracts/mocks/StringsMock.sol b/contracts/mocks/StringsMock.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../utils/Strings.sol";

diff --git a/contracts/payment/PaymentSplitter.sol b/contracts/payment/PaymentSplitter.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "../GSN/Context.sol";

diff --git a/contracts/payment/PullPayment.sol b/contracts/payment/PullPayment.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.2;
 
 import "./escrow/Escrow.sol";

diff --git a/contracts/payment/escrow/ConditionalEscrow.sol b/contracts/payment/escrow/ConditionalEscrow.sol
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 pragma solidity ^0.6.0;
 
 import "./Escrow.sol";