chore(ctb): Rename lib to SafeSigners

packages/contracts-bedrock/src/Safe/LivenessGuard.sol

@@ -4,7 +4,7 @@ pragma solidity 0.8.15;
 import { Safe } from "safe-contracts/Safe.sol";
 import { BaseGuard, GuardManager } from "safe-contracts/base/GuardManager.sol";
 import { ModuleManager } from "safe-contracts/base/ModuleManager.sol";
-import { GetSigners } from "src/Safe/GetSigners.sol";
+import { SafeSigners } from "src/Safe/SafeSigners.sol";
 import { Enum } from "safe-contracts/common/Enum.sol";
 import { ISemver } from "src/universal/ISemver.sol";
 import { EnumerableSet } from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
@@ -110,7 +110,7 @@ contract LivenessGuard is ISemver, BaseGuard {
 
         uint256 threshold = safe.getThreshold();
         address[] memory signers =
-            GetSigners.getNSigners({ dataHash: txHash, signatures: signatures, requiredSignatures: threshold });
+            SafeSigners.getNSigners({ dataHash: txHash, signatures: signatures, requiredSignatures: threshold });
 
         for (uint256 i = 0; i < signers.length; i++) {
             lastLive[signers[i]] = block.timestamp;

packages/contracts-bedrock/src/Safe/GetSigners.sol → packages/contracts-bedrock/src/Safe/SafeSigners.sol

 // SPDX-License-Identifier: MIT
-pragma solidity 0.8.15;
+pragma solidity ^0.8.0;
 
-library GetSigners {
+library SafeSigners {
     /// @notice Splits signature bytes into `uint8 v, bytes32 r, bytes32 s`.
     ///         Copied directly from
     /// https://github.com/safe-global/safe-contracts/blob/e870f514ad34cd9654c72174d6d4a839e3c6639f/contracts/common/SignatureDecoder.sol
@@ -41,6 +41,7 @@ library GetSigners {
     /// @param dataHash Hash of the data.
     /// @param signatures Signature data for identifying signers.
     /// @param requiredSignatures Amount of required valid signatures.
+    /// @return _owners List of unique signers.
     function getNSigners(
         bytes32 dataHash,
         bytes memory signatures,

packages/contracts-bedrock/test/GetSigners.t.sol → packages/contracts-bedrock/test/SafeSigners.t.sol

@@ -3,12 +3,12 @@ pragma solidity 0.8.15;
 
 import { Test } from "forge-std/Test.sol";
 import { Safe } from "safe-contracts/Safe.sol";
-import { GetSigners } from "src/Safe/GetSigners.sol";
+import { SafeSigners } from "src/Safe/SafeSigners.sol";
 import "test/safe-tools/SafeTestTools.sol";
 
 import { SignatureDecoder } from "safe-contracts/common/SignatureDecoder.sol";
 
-contract GetSigners_Test is Test, SafeTestTools {
+contract SafeSigners_Test is Test, SafeTestTools {
     bytes4 internal constant EIP1271_MAGIC_VALUE = 0x20c13b0b;
 
     enum SigTypes {
@@ -98,7 +98,7 @@ contract GetSigners_Test is Test, SafeTestTools {
 
         // Recover the signatures using the _getNSigners() method.
         address[] memory gotSigners =
-            GetSigners.getNSigners({ dataHash: digest, signatures: signatures, requiredSignatures: numSigs });
+            SafeSigners.getNSigners({ dataHash: digest, signatures: signatures, requiredSignatures: numSigs });
 
         // Compare the list of recovered signers to the expected signers.
         assertEq(gotSigners.length, numSigs);