CI: use prebuilt clang-format 18

.clang-format

@@ -1,121 +1,5 @@
----
 Language:        Cpp
-# BasedOnStyle:  LLVM 8.0
-# Changed parametera:
-#   ColumnLimit: 80 -> 120
-#   IndentWidth: 2 -> 4 
-#   TabWidth: 2 -> 4
-# Removed ObjC-related parameters
-AccessModifierOffset: -2
-AlignAfterOpenBracket: Align
-AlignConsecutiveAssignments: false
-AlignConsecutiveDeclarations: false
-AlignEscapedNewlines: Right
-AlignOperands:   true
-AlignTrailingComments: true
-AllowAllParametersOfDeclarationOnNextLine: true
-AllowShortBlocksOnASingleLine: false
-AllowShortCaseLabelsOnASingleLine: false
-AllowShortFunctionsOnASingleLine: All
-AllowShortIfStatementsOnASingleLine: false
-AllowShortLoopsOnASingleLine: false
-AlwaysBreakAfterDefinitionReturnType: None
-AlwaysBreakAfterReturnType: None
-AlwaysBreakBeforeMultilineStrings: false
-AlwaysBreakTemplateDeclarations: MultiLine
-BinPackArguments: true
-BinPackParameters: true
-BraceWrapping:   
-  AfterClass:      false
-  AfterControlStatement: false
-  AfterEnum:       false
-  AfterFunction:   false
-  AfterNamespace:  false
-  AfterObjCDeclaration: false
-  AfterStruct:     false
-  AfterUnion:      false
-  AfterExternBlock: false
-  BeforeCatch:     false
-  BeforeElse:      false
-  IndentBraces:    false
-  SplitEmptyFunction: true
-  SplitEmptyRecord: true
-  SplitEmptyNamespace: true
-BreakBeforeBinaryOperators: None
-BreakBeforeBraces: Attach
-BreakBeforeInheritanceComma: false
-BreakInheritanceList: BeforeColon
-BreakBeforeTernaryOperators: true
-BreakConstructorInitializersBeforeComma: false
-BreakConstructorInitializers: BeforeColon
-BreakAfterJavaFieldAnnotations: false
-BreakStringLiterals: true
+BasedOnStyle:  LLVM
 ColumnLimit: 120
-CommentPragmas:  '^ IWYU pragma:'
-CompactNamespaces: false
-ConstructorInitializerAllOnOneLineOrOnePerLine: false
-ConstructorInitializerIndentWidth: 4
-ContinuationIndentWidth: 4
-Cpp11BracedListStyle: true
-DerivePointerAlignment: false
-DisableFormat:   false
-ExperimentalAutoDetectBinPacking: false
-FixNamespaceComments: true
-ForEachMacros:   
-  - foreach
-  - Q_FOREACH
-  - BOOST_FOREACH
-IncludeBlocks:   Preserve
-IncludeCategories: 
-  - Regex:           '^"(llvm|llvm-c|clang|clang-c)/'
-    Priority:        2
-  - Regex:           '^(<|"(gtest|gmock|isl|json)/)'
-    Priority:        3
-  - Regex:           '.*'
-    Priority:        1
-IncludeIsMainRegex: '(Test)?$'
-IndentCaseLabels: false
-IndentPPDirectives: None
 IndentWidth: 4
-IndentWrappedFunctionNames: false
-JavaScriptQuotes: Leave
-JavaScriptWrapImports: true
-KeepEmptyLinesAtTheStartOfBlocks: true
-MacroBlockBegin: ''
-MacroBlockEnd:   ''
-MaxEmptyLinesToKeep: 1
-NamespaceIndentation: None
-PenaltyBreakAssignment: 2
-PenaltyBreakBeforeFirstCallParameter: 19
-PenaltyBreakComment: 300
-PenaltyBreakFirstLessLess: 120
-PenaltyBreakString: 1000
-PenaltyBreakTemplateDeclaration: 10
-PenaltyExcessCharacter: 1000000
-PenaltyReturnTypeOnItsOwnLine: 60
-PointerAlignment: Right
-ReflowComments:  true
-SortIncludes:    true
-SortUsingDeclarations: true
-SpaceAfterCStyleCast: false
-SpaceAfterTemplateKeyword: true
-SpaceBeforeAssignmentOperators: true
-SpaceBeforeCpp11BracedList: false
-SpaceBeforeCtorInitializerColon: true
-SpaceBeforeInheritanceColon: true
-SpaceBeforeParens: ControlStatements
-SpaceBeforeRangeBasedForLoopColon: true
-SpaceInEmptyParentheses: false
-SpacesBeforeTrailingComments: 1
-SpacesInAngles:  false
-SpacesInContainerLiterals: true
-SpacesInCStyleCastParentheses: false
-SpacesInParentheses: false
-SpacesInSquareBrackets: false
-Standard:        Cpp11
-StatementMacros: 
-  - Q_UNUSED
-  - QT_REQUIRE_VERSION
 TabWidth: 4
-UseTab:          Never
-...

.github/workflows/format-check.yml

@@ -7,9 +7,18 @@ permissions: read-all
 
 on: [push, pull_request]
 
+env:
+  SDE_MIRROR_ID: 813591
+  SDE_TAR_NAME: sde-external-9.33.0-2024-01-07
+  USER_AGENT: "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36"
+  LLVM_REPO: https://github.com/ispc/ispc.dependencies
+
 jobs:
   check-format:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
+    env:
+      LLVM_VERSION: "18.1"
+      LLVM_TAR: llvm-18.1.8-ubuntu22.04-Release+Asserts-x86.arm.wasm.tar.xz
 
     steps:
     - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
@@ -18,11 +27,7 @@ jobs:
 
     - name: Install dependencies
       run: |
-        echo "APT::Acquire::Retries \"3\";" | sudo tee -a /etc/apt/apt.conf.d/80-retries
-        sudo apt-get update
-        sudo apt-get install -y clang-format-12 clang-12
-        sudo ln -sf /usr/bin/clang-12 /usr/bin/clang
-        sudo ln -sf /usr/bin/clang-format-12 /usr/bin/clang-format
+        .github/workflows/scripts/install-build-deps.sh
 
     - name: Check format
       run: |

scripts/check_format.sh

@@ -7,14 +7,14 @@ EXIT_CODE=0
 echo "\
 ############################################################################
 Checking formatting of modified files. It is expected that the files were
-formatted with clang-format 12.0.0. It is also expected that clang-format
-version 12.0.0 is used for the check. Otherwise the result can ne unexpected.
+formatted with clang-format 18.1. It is also expected that clang-format
+version 18.1 is used for the check. Otherwise the result can ne unexpected.
 ############################################################################"
 
 CLANG_FORMAT="clang-format"
 [[ ! -z $1 ]] && CLANG_FORMAT=$1
 which "$CLANG_FORMAT" || { echo "No $CLANG_FORMAT found in PATH" && exit 1; }
-REQUIRED_VERSION="12.0.0"
+REQUIRED_VERSION="18.1"
 VERSION_STRING="clang-format version $REQUIRED_VERSION.*"
 CURRENT_VERSION="$($CLANG_FORMAT --version)"
 if ! [[ $CURRENT_VERSION =~ $VERSION_STRING ]] ; then
@@ -27,7 +27,6 @@ fi
 FILES=$(ls                                  \
     src/*.{cpp,h}                           \
     src/opt/*.{cpp,h}                       \
-    *.cpp                                   \
     builtins/*{cpp,hpp,c}                   \
     benchmarks/{01,02}*/*{cpp,ispc}         \
     common/*.h                              \