[clang] [clang-format] Add option to remove leading blank lines (PR #91221)

Mon Jun 24 21:06:29 PDT 2024

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-ppc64le-linux-multistage` running on `ppc64le-clang-multistage-test` while building `clang` at step 4 "build stage 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/76/builds/356

Here is the relevant piece of the build log for the reference:
```
Step 4 (build stage 1) failure: 'ninja' (failure)
...
[352/606] Creating library symlink lib/libclangStaticAnalyzerCheckers.so
[353/606] Linking CXX shared library lib/libclangIncludeCleaner.so.19.0git
[354/606] Creating library symlink lib/libclangIncludeCleaner.so
[355/606] Building CXX object lib/CodeGen/AsmPrinter/CMakeFiles/LLVMAsmPrinter.dir/AsmPrinter.cpp.o
[356/606] Linking CXX shared library lib/libclangStaticAnalyzerFrontend.so.19.0git
[357/606] Creating library symlink lib/libclangStaticAnalyzerFrontend.so
[358/606] Linking CXX shared module lib/SampleAnalyzerPlugin.so
[359/606] Linking CXX shared module lib/CheckerOptionHandlingAnalyzerPlugin.so
[360/606] Linking CXX shared module lib/CheckerDependencyHandlingAnalyzerPlugin.so
[361/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/Format.cpp.o
FAILED: tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/Format.cpp.o 
ccache /usr/lib64/ccache/c++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/stage1/tools/clang/tools/extra/clangd -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/clang-tools-extra/clangd -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/clang-tools-extra/clangd/../include-cleaner/include -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/stage1/tools/clang/tools/extra/clangd/../clang-tidy -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/clang/include -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/stage1/tools/clang/include -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/stage1/include -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/include -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/clang-tools-extra/pseudo/lib/../include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -fno-lifetime-dse -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wno-comment -Wno-misleading-indentation -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -fno-strict-aliasing -O3 -DNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/Format.cpp.o -MF tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/Format.cpp.o.d -o tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/Format.cpp.o -c /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/clang-tools-extra/clangd/Format.cpp
/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/clang-tools-extra/clangd/Format.cpp: In function ‘std::vector<clang::tooling::Replacement> clang::clangd::formatIncremental(llvm::StringRef, unsigned int, llvm::StringRef, clang::format::FormatStyle)’:
/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/clang-tools-extra/clangd/Format.cpp:284:11: error: ‘struct clang::format::FormatStyle’ has no member named ‘KeepEmptyLinesAtTheStartOfBlocks’; did you mean ‘KeepEmptyLinesStyle’?
     Style.KeepEmptyLinesAtTheStartOfBlocks = true;
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           KeepEmptyLinesStyle
[362/606] Linking CXX shared library lib/libLLVMAsmPrinter.so.19.0git
[363/606] Linking CXX executable bin/clang-include-cleaner
[364/606] Building CXX object tools/clang/tools/extra/clang-tidy/abseil/CMakeFiles/obj.clangTidyAbseilModule.dir/StringFindStrContainsCheck.cpp.o
[365/606] Building CXX object tools/clang/tools/extra/clangd/refactor/tweaks/CMakeFiles/obj.clangDaemonTweaks.dir/AddUsing.cpp.o
[366/606] Building CXX object tools/clang/tools/extra/clang-tidy/bugprone/CMakeFiles/obj.clangTidyBugproneModule.dir/StringviewNullptrCheck.cpp.o
[367/606] Building CXX object tools/clang/tools/extra/clang-tidy/misc/CMakeFiles/obj.clangTidyMiscModule.dir/IncludeCleanerCheck.cpp.o
[368/606] Linking CXX shared library lib/libclangCodeGen.so.19.0git
[369/606] Building CXX object tools/clang/tools/extra/clang-tidy/bugprone/CMakeFiles/obj.clangTidyBugproneModule.dir/BugproneTidyModule.cpp.o
[370/606] Building CXX object tools/clang/tools/extra/clang-tidy/CMakeFiles/obj.clangTidy.dir/ClangTidy.cpp.o
[371/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/index/Serialization.cpp.o
[372/606] Building CXX object tools/clang/tools/extra/clang-move/CMakeFiles/obj.clangMove.dir/Move.cpp.o
[373/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/index/BackgroundRebuild.cpp.o
[374/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/SourceCode.cpp.o
[375/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/SemanticHighlighting.cpp.o
[376/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/index/BackgroundQueue.cpp.o
[377/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/CollectMacros.cpp.o
[378/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/index/IndexAction.cpp.o
[379/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/index/BackgroundIndexStorage.cpp.o
[380/606] Building CXX object tools/clang/tools/extra/clangd/fuzzer/CMakeFiles/clangd-fuzzer.dir/clangd-fuzzer.cpp.o
[381/606] Building CXX object tools/clang/tools/extra/clangd/refactor/tweaks/CMakeFiles/obj.clangDaemonTweaks.dir/ExtractVariable.cpp.o
[382/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/GlobalCompilationDatabase.cpp.o
[383/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/index/BackgroundIndexLoader.cpp.o
[384/606] Building CXX object tools/clang/tools/extra/clangd/indexer/CMakeFiles/clangd-indexer.dir/IndexerMain.cpp.o
[385/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/ASTSignals.cpp.o
[386/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/refactor/Tweak.cpp.o
[387/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/HeaderSourceSwitch.cpp.o
[388/606] Building CXX object tools/clang/tools/extra/clangd/index/dex/dexp/CMakeFiles/dexp.dir/Dexp.cpp.o
[389/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/index/SymbolCollector.cpp.o
[390/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/SemanticSelection.cpp.o
[391/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/Quality.cpp.o
[392/606] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/index/YAMLSerialization.cpp.o
[393/606] Building CXX object tools/clang/tools/extra/clangd/refactor/tweaks/CMakeFiles/obj.clangDaemonTweaks.dir/RemoveUsingNamespace.cpp.o

```

https://github.com/llvm/llvm-project/pull/91221