Reorganized folders

contracts/lendingpool/LendingPool.sol

@@ -4,9 +4,7 @@ pragma experimental ABIEncoderV2;
 
 import {SafeMath} from '@openzeppelin/contracts/math/SafeMath.sol';
 import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
-import {
-  VersionedInitializable
-} from '../libraries/openzeppelin-upgradeability/VersionedInitializable.sol';
+import {VersionedInitializable} from '../libraries/aave-upgradeability/VersionedInitializable.sol';
 import {ILendingPoolAddressesProvider} from '../interfaces/ILendingPoolAddressesProvider.sol';
 import {IAToken} from '../tokenization/interfaces/IAToken.sol';
 import {Helpers} from '../libraries/helpers/Helpers.sol';

contracts/lendingpool/LendingPoolCollateralManager.sol

@@ -1,11 +1,9 @@
 // SPDX-License-Identifier: agpl-3.0
 pragma solidity ^0.6.8;
 
-import {SafeMath} from '@openzeppelin/contracts/math/SafeMath.sol';
-import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
-import {
-  VersionedInitializable
-} from '../libraries/openzeppelin-upgradeability/VersionedInitializable.sol';
+import {SafeMath} from '../libraries/external/openzeppelin/contracts//SafeMath.sol';
+import {IERC20} from '../libraries/external/openzeppelin/contracts//IERC20.sol';
+import {VersionedInitializable} from '../libraries/aave-upgradeability/VersionedInitializable.sol';
 import {IAToken} from '../tokenization/interfaces/IAToken.sol';
 import {IStableDebtToken} from '../tokenization/interfaces/IStableDebtToken.sol';
 import {IVariableDebtToken} from '../tokenization/interfaces/IVariableDebtToken.sol';
@@ -16,7 +14,7 @@ import {UserConfiguration} from '../libraries/configuration/UserConfiguration.so
 import {Helpers} from '../libraries/helpers/Helpers.sol';
 import {WadRayMath} from '../libraries/math/WadRayMath.sol';
 import {PercentageMath} from '../libraries/math/PercentageMath.sol';
-import {SafeERC20} from '@openzeppelin/contracts/token/ERC20/SafeERC20.sol';
+import {SafeERC20} from '../libraries/external/openzeppelin/contracts/SafeERC20.sol';
 import {ISwapAdapter} from '../interfaces/ISwapAdapter.sol';
 import {Errors} from '../libraries/helpers/Errors.sol';
 import {ValidationLogic} from '../libraries/logic/ValidationLogic.sol';

contracts/lendingpool/LendingPoolConfigurator.sol

@@ -2,17 +2,15 @@
 pragma solidity ^0.6.8;
 pragma experimental ABIEncoderV2;
 
-import {SafeMath} from '@openzeppelin/contracts/math/SafeMath.sol';
-import {
-  VersionedInitializable
-} from '../libraries/openzeppelin-upgradeability/VersionedInitializable.sol';
+import {SafeMath} from '../libraries/external/openzeppelin/contracts/SafeMath.sol';
+import {VersionedInitializable} from '../libraries/aave-upgradeability/VersionedInitializable.sol';
 import {
   InitializableImmutableAdminUpgradeabilityProxy
 } from '../libraries/aave-upgradeability/InitializableImmutableAdminUpgradeabilityProxy.sol';
 import {ReserveConfiguration} from '../libraries/configuration/ReserveConfiguration.sol';
 import {ILendingPoolAddressesProvider} from '../interfaces/ILendingPoolAddressesProvider.sol';
 import {ILendingPool} from '../interfaces/ILendingPool.sol';
-import {IERC20Detailed} from '../interfaces/IERC20Detailed.sol';
+import {IERC20Detailed} from '../libraries/external/openzeppelin/contracts/IERC20Detailed.sol';
 import {Errors} from '../libraries/helpers/Errors.sol';
 import {ReserveLogic} from '../libraries/logic/ReserveLogic.sol';
 

contracts/libraries/aave-upgradeability/BaseImmutableAdminUpgradeabilityProxy.sol

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: agpl-3.0
 pragma solidity ^0.6.8;
 
-import '../openzeppelin-upgradeability/BaseUpgradeabilityProxy.sol';
+import '../external/openzeppelin/upgradeability/BaseUpgradeabilityProxy.sol';
 
 /**
  * @title BaseImmutableAdminUpgradeabilityProxy
@@ -14,11 +14,10 @@ import '../openzeppelin-upgradeability/BaseUpgradeabilityProxy.sol';
  * feature proposal that would enable this to be done automatically.
  */
 contract BaseImmutableAdminUpgradeabilityProxy is BaseUpgradeabilityProxy {
-
   address immutable ADMIN;
 
   constructor(address admin) public {
-     ADMIN = admin; 
+    ADMIN = admin;
   }
 
   modifier ifAdmin() {
@@ -71,7 +70,6 @@ contract BaseImmutableAdminUpgradeabilityProxy is BaseUpgradeabilityProxy {
     require(success);
   }
 
-
   /**
    * @dev Only fall back when the sender is not the admin.
    */

contracts/libraries/aave-upgradeability/InitializableImmutableAdminUpgradeabilityProxy.sol

@@ -2,7 +2,7 @@
 pragma solidity ^0.6.8;
 
 import './BaseImmutableAdminUpgradeabilityProxy.sol';
-import '../openzeppelin-upgradeability/InitializableUpgradeabilityProxy.sol';
+import '../external/openzeppelin/upgradeability/InitializableUpgradeabilityProxy.sol';
 
 /**
  * @title InitializableAdminUpgradeabilityProxy
@@ -13,9 +13,7 @@ contract InitializableImmutableAdminUpgradeabilityProxy is
   BaseImmutableAdminUpgradeabilityProxy,
   InitializableUpgradeabilityProxy
 {
-
-  constructor(address admin) public BaseImmutableAdminUpgradeabilityProxy(admin) {
-  }
+  constructor(address admin) public BaseImmutableAdminUpgradeabilityProxy(admin) {}
 
   /**
    * @dev Only fall back when the sender is not the admin.

contracts/libraries/external/openzeppelin/contracts/SafeERC20.sol

@@ -2,8 +2,8 @@
 
 pragma solidity 0.6.8;
 
-import {IERC20} from '../interfaces/IERC20.sol';
-import {SafeMath} from '../libraries/math/SafeMath.sol';
+import {IERC20} from './IERC20.sol';
+import {SafeMath} from './SafeMath.sol';
 import {Address} from './Address.sol';
 
 /**

contracts/misc/AaveProtocolTestHelpers.sol

@@ -3,7 +3,7 @@ pragma solidity ^0.6.8;
 pragma experimental ABIEncoderV2;
 
 import {ILendingPoolAddressesProvider} from '../interfaces/ILendingPoolAddressesProvider.sol';
-import {IERC20Detailed} from '../interfaces/IERC20Detailed.sol';
+import {IERC20Detailed} from '../libraries/external/openzeppelin/contracts/IERC20Detailed.sol';
 import {ILendingPool} from '../interfaces/ILendingPool.sol';
 import {ReserveLogic} from '../libraries/logic/ReserveLogic.sol';
 import {ReserveConfiguration} from '../libraries/configuration/ReserveConfiguration.sol';

contracts/mocks/flashloan/MockFlashLoanReceiver.sol

@@ -1,16 +1,15 @@
 // SPDX-License-Identifier: agpl-3.0
 pragma solidity ^0.6.8;
 
-import {SafeMath} from '@openzeppelin/contracts/math/SafeMath.sol';
-import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
+import {SafeMath} from '../../libraries/external/openzeppelin/contracts/SafeMath.sol';
+import {IERC20} from '../../libraries/external/openzeppelin/contracts/IERC20.sol';
 
 import {FlashLoanReceiverBase} from '../../flashloan/base/FlashLoanReceiverBase.sol';
 import {MintableERC20} from '../tokens/MintableERC20.sol';
-import {SafeERC20} from '@openzeppelin/contracts/token/ERC20/SafeERC20.sol';
+import {SafeERC20} from '../../libraries/external/openzeppelin/contracts/SafeERC20.sol';
 import {ILendingPoolAddressesProvider} from '../../interfaces/ILendingPoolAddressesProvider.sol';
 
 contract MockFlashLoanReceiver is FlashLoanReceiverBase {
-  using SafeMath for uint256;
   using SafeERC20 for IERC20;
 
   ILendingPoolAddressesProvider internal _provider;

contracts/tokenization/AToken.sol

@@ -5,12 +5,10 @@ import {IncentivizedERC20} from './IncentivizedERC20.sol';
 import {LendingPool} from '../lendingpool/LendingPool.sol';
 import {WadRayMath} from '../libraries/math/WadRayMath.sol';
 import {Errors} from '../libraries/helpers/Errors.sol';
-import {
-  VersionedInitializable
-} from '../libraries/openzeppelin-upgradeability/VersionedInitializable.sol';
+import {VersionedInitializable} from '../libraries/aave-upgradeability/VersionedInitializable.sol';
 import {IAToken} from './interfaces/IAToken.sol';
-import {IERC20} from '../interfaces/IERC20.sol';
-import {SafeERC20} from '../misc/SafeERC20.sol';
+import {IERC20} from '../libraries/external/openzeppelin/contracts/IERC20.sol';
+import {SafeERC20} from '../libraries/external/openzeppelin/contracts/SafeERC20.sol';
 
 /**
  * @title Aave ERC20 AToken

contracts/tokenization/IncentivizedERC20.sol

@@ -1,10 +1,10 @@
 // SPDX-License-Identifier: agpl-3.0
 pragma solidity 0.6.8;
 
-import {Context} from '../misc/Context.sol';
-import {IERC20} from '../interfaces/IERC20.sol';
-import {IERC20Detailed} from '../interfaces/IERC20Detailed.sol';
-import {SafeMath} from '../libraries/math/SafeMath.sol';
+import {Context} from '../libraries/external/openzeppelin/contracts/Context.sol';
+import {IERC20} from '../libraries/external/openzeppelin/contracts/IERC20.sol';
+import {IERC20Detailed} from '../libraries/external/openzeppelin/contracts/IERC20Detailed.sol';
+import {SafeMath} from '../libraries/external/openzeppelin/contracts/SafeMath.sol';
 import {IAaveIncentivesController} from '../interfaces/IAaveIncentivesController.sol';
 
 /**

contracts/tokenization/base/DebtTokenBase.sol

@@ -4,7 +4,7 @@ pragma solidity ^0.6.8;
 import {ILendingPool} from '../../interfaces/ILendingPool.sol';
 import {
   VersionedInitializable
-} from '../../libraries/openzeppelin-upgradeability/VersionedInitializable.sol';
+} from '../../libraries/aave-upgradeability/VersionedInitializable.sol';
 import {IncentivizedERC20} from '../IncentivizedERC20.sol';
 import {Errors} from '../../libraries/helpers/Errors.sol';
 

contracts/tokenization/interfaces/IAToken.sol

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: agpl-3.0
 pragma solidity ^0.6.8;
 
-import {IERC20} from '../../interfaces/IERC20.sol';
+import {IERC20} from '../../libraries/external/openzeppelin/contracts/IERC20.sol';
 import {IScaledBalanceToken} from './IScaledBalanceToken.sol';
 
 interface IAToken is IERC20, IScaledBalanceToken {