add clang format to the project

.clang-format

@@ -0,0 +1,280 @@
+---
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+  PadOperators:    false
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+AllowShortLoopsOnASingleLine: true
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: true
+AlwaysBreakTemplateDeclarations: Yes
+AttributeMacros:
+  - __capability
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+BinPackParameters: true
+BitFieldColonSpacing: Both
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+  AfterClass:      false
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+  SplitEmptyNamespace: true
+BreakAdjacentStringLiterals: true
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+BreakInheritanceList: BeforeColon
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+DisableFormat:   false
+EmptyLineAfterAccessModifier: Never
+EmptyLineBeforeAccessModifier: LogicalBlock
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: true
+ForEachMacros:
+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
+IfMacros:
+  - KJ_IF_MAYBE
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+IncludeCategories:
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+    SortPriority:    0
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+      - 'C++'
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+      - proto
+      - PROTO
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+      - EquivToProto
+      - PARSE_PARTIAL_TEXT_PROTO
+      - PARSE_TEST_PROTO
+      - PARSE_TEXT_PROTO
+      - ParseTextOrDie
+      - ParseTextProtoOrDie
+      - ParseTestProto
+      - ParsePartialTestProto
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+    BasedOnStyle:    google
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+ReflowComments:  true
+RemoveBracesLLVM: false
+RemoveParentheses: Leave
+RemoveSemicolon: false
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+ShortNamespaceLines: 1
+SkipMacroDefinitionBody: false
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+SpaceAfterLogicalNot: false
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+SpaceAroundPointerQualifiers: Default
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCaseColon: false
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeJsonColon: false
+SpaceBeforeParens: ControlStatements
+SpaceBeforeParensOptions:
+  AfterControlStatements: true
+  AfterForeachMacros: true
+  AfterFunctionDefinitionName: false
+  AfterFunctionDeclarationName: false
+  AfterIfMacros:   true
+  AfterOverloadedOperator: false
+  AfterPlacementOperator: true
+  AfterRequiresInClause: false
+  AfterRequiresInExpression: false
+  BeforeNonEmptyParentheses: false
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceBeforeSquareBrackets: false
+SpaceInEmptyBlock: false
+SpacesBeforeTrailingComments: 2
+SpacesInAngles:  Never
+SpacesInContainerLiterals: true
+SpacesInLineCommentPrefix:
+  Minimum:         1
+  Maximum:         -1
+SpacesInParens:  Never
+SpacesInParensOptions:
+  InCStyleCasts:   false
+  InConditionalStatements: false
+  InEmptyParentheses: false
+  Other:           false
+SpacesInSquareBrackets: false
+Standard:        Auto
+StatementAttributeLikeMacros:
+  - Q_EMIT
+StatementMacros:
+  - Q_UNUSED
+  - QT_REQUIRE_VERSION
+TabWidth:        8
+UseTab:          Never
+VerilogBreakBetweenInstancePorts: true
+WhitespaceSensitiveMacros:
+  - BOOST_PP_STRINGIZE
+  - CF_SWIFT_NAME
+  - NS_SWIFT_NAME
+  - PP_STRINGIZE
+  - STRINGIZE
+...
+

.github/workflows/clang-format.yml

@@ -0,0 +1,12 @@
+name: Clang Format Diff Check
+on: [push]
+jobs:
+  clang-format-diff-check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Sources
+        uses: actions/checkout@v4
+      - name: clang format diff check
+        run: |
+          git fetch origin main
+          git clang-format origin/main --diff

src/aws-cpp-sdk-core/include/aws/core/client/AWSClient.h

@@ -358,6 +358,7 @@ namespace Aws
             void AppendHeaderValueToRequest(
                 const std::shared_ptr<Http::HttpRequest> &request, String header,
                 String value) const;
+            void SomePoorlyFormattedFunction(const Aws::String&arg,const Aws::String&anotherarg, const Aws::String&anotheranotherarg, const Aws::String&anotheranotheranotherarg);
         };
 
         AWS_CORE_API Aws::String GetAuthorizationHeader(const Aws::Http::HttpRequest& httpRequest);

src/aws-cpp-sdk-core/source/client/AWSClient.cpp

@@ -796,8 +796,10 @@ void AWSClient::AppendHeaderValueToRequest(const std::shared_ptr<Aws::Http::Http
     }
 }
 
+void AWSClient::SomePoorlyFormattedFunction(const Aws::String& arg,const Aws::String& anotherarg, const Aws::String& anotheranotherarg,const Aws::String& anotheranotheranotherarg) {AWS_UNREFERENCED_PARAM(arg);AWS_UNREFERENCED_PARAM(anotherarg);AWS_UNREFERENCED_PARAM(anotheranotherarg);AWS_UNREFERENCED_PARAM(anotheranotheranotherarg);}
+
 void AWSClient::AddChecksumToRequest(const std::shared_ptr<Aws::Http::HttpRequest>& httpRequest,
-    const Aws::AmazonWebServiceRequest& request) const
+                                     const Aws::AmazonWebServiceRequest& request) const
 {
     Aws::String checksumAlgorithmName = Aws::Utils::StringUtils::ToLower(request.GetChecksumAlgorithmName().c_str());
     if (request.GetServiceSpecificParameters()) {