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

Mon Jun 24 21:05:30 PDT 2024

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `premerge-monolithic-linux` running on `premerge-linux-1` while building `clang` at step 6 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/153/builds/1025

Here is the relevant piece of the build log for the reference:
```
Step 6 (build-unified-tree) failure: build (failure)
...
15.654 [3044/58/239] Building CXX object tools/clang/tools/extra/clangd/refactor/tweaks/CMakeFiles/obj.clangDaemonTweaks.dir/ObjCMemberwiseInitializer.cpp.o
15.737 [3043/58/240] Building CXX object tools/clang/tools/extra/include-cleaner/lib/CMakeFiles/obj.clangIncludeCleaner.dir/LocateSymbol.cpp.o
16.095 [3042/58/241] Building CXX object tools/clang/lib/Tooling/Transformer/CMakeFiles/obj.clangTransformer.dir/RewriteRule.cpp.o
16.180 [3041/58/242] Building CXX object tools/clang/tools/extra/include-cleaner/lib/CMakeFiles/obj.clangIncludeCleaner.dir/FindHeaders.cpp.o
16.238 [3040/58/243] Building CXX object tools/clang/tools/extra/clangd/refactor/tweaks/CMakeFiles/obj.clangDaemonTweaks.dir/DefineOutline.cpp.o
17.154 [3039/58/244] Building CXX object tools/clang/tools/extra/clangd/refactor/tweaks/CMakeFiles/obj.clangDaemonTweaks.dir/SpecialMembers.cpp.o
17.477 [3038/58/245] Building CXX object tools/clang/tools/extra/include-cleaner/lib/CMakeFiles/obj.clangIncludeCleaner.dir/HTMLReport.cpp.o
18.282 [3037/58/246] Building CXX object tools/clang/tools/extra/clang-include-fixer/tool/CMakeFiles/clang-include-fixer.dir/ClangIncludeFixer.cpp.o
18.623 [3036/58/247] Building CXX object tools/clang/tools/extra/clangd/refactor/tweaks/CMakeFiles/obj.clangDaemonTweaks.dir/DefineInline.cpp.o
18.813 [3035/58/248] 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_CPP2=yes CCACHE_HASHDIR=yes /usr/bin/ccache /usr/bin/clang++ -DBUILD_EXAMPLES -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/build/buildbot/premerge-monolithic-linux/build/tools/clang/tools/extra/clangd -I/build/buildbot/premerge-monolithic-linux/llvm-project/clang-tools-extra/clangd -I/build/buildbot/premerge-monolithic-linux/llvm-project/clang-tools-extra/clangd/../include-cleaner/include -I/build/buildbot/premerge-monolithic-linux/build/tools/clang/tools/extra/clangd/../clang-tidy -I/build/buildbot/premerge-monolithic-linux/llvm-project/clang/include -I/build/buildbot/premerge-monolithic-linux/build/tools/clang/include -I/build/buildbot/premerge-monolithic-linux/build/include -I/build/buildbot/premerge-monolithic-linux/llvm-project/llvm/include -I/build/buildbot/premerge-monolithic-linux/llvm-project/clang-tools-extra/pseudo/lib/../include -gmlt -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -Wno-nested-anon-types -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -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 /build/buildbot/premerge-monolithic-linux/llvm-project/clang-tools-extra/clangd/Format.cpp
/build/buildbot/premerge-monolithic-linux/llvm-project/clang-tools-extra/clangd/Format.cpp:284:11: error: no member named 'KeepEmptyLinesAtTheStartOfBlocks' in 'clang::format::FormatStyle'
    Style.KeepEmptyLinesAtTheStartOfBlocks = true;
    ~~~~~ ^
1 error generated.
18.973 [3035/57/249] Building CXX object tools/clang/tools/extra/clang-tidy/abseil/CMakeFiles/obj.clangTidyAbseilModule.dir/AbseilTidyModule.cpp.o
19.152 [3035/56/250] Building CXX object tools/clang/tools/extra/clang-tidy/abseil/CMakeFiles/obj.clangTidyAbseilModule.dir/CleanupCtadCheck.cpp.o
19.824 [3035/55/251] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTO.cpp.o
20.029 [3035/54/252] Building CXX object lib/CodeGen/AsmPrinter/CMakeFiles/LLVMAsmPrinter.dir/AsmPrinter.cpp.o
20.863 [3035/53/253] Building CXX object tools/clang/tools/extra/clang-tidy/utils/CMakeFiles/obj.clangTidyUtils.dir/TransformerClangTidyCheck.cpp.o
21.123 [3035/52/254] Building CXX object tools/clang/tools/extra/include-cleaner/tool/CMakeFiles/clang-include-cleaner.dir/IncludeCleaner.cpp.o
21.866 [3035/51/255] Building CXX object tools/clang/tools/extra/clang-include-fixer/CMakeFiles/obj.clangIncludeFixer.dir/IncludeFixer.cpp.o
22.559 [3035/50/256] Building CXX object tools/clang/tools/extra/clang-tidy/abseil/CMakeFiles/obj.clangTidyAbseilModule.dir/StringFindStrContainsCheck.cpp.o
22.597 [3035/49/257] Building CXX object tools/clang/tools/extra/clang-tidy/misc/CMakeFiles/obj.clangTidyMiscModule.dir/IncludeCleanerCheck.cpp.o
22.702 [3035/48/258] Building CXX object tools/clang/tools/extra/clang-change-namespace/tool/CMakeFiles/clang-change-namespace.dir/ClangChangeNamespace.cpp.o
23.323 [3035/47/259] Building CXX object tools/clang/tools/extra/clang-tidy/bugprone/CMakeFiles/obj.clangTidyBugproneModule.dir/StringviewNullptrCheck.cpp.o
23.427 [3035/46/260] Building CXX object tools/clang/tools/extra/tool-template/CMakeFiles/tool-template.dir/ToolTemplate.cpp.o
25.064 [3035/45/261] Building CXX object tools/clang/tools/extra/clang-tidy/CMakeFiles/obj.clangTidy.dir/ClangTidy.cpp.o
25.733 [3035/44/262] Building CXX object tools/clang/tools/extra/clang-tidy/bugprone/CMakeFiles/obj.clangTidyBugproneModule.dir/BugproneTidyModule.cpp.o
25.846 [3035/43/263] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/HeaderSourceSwitch.cpp.o
25.955 [3035/42/264] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/GlobalCompilationDatabase.cpp.o
25.976 [3035/41/265] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/CollectMacros.cpp.o
26.238 [3035/40/266] Building CXX object tools/clang/tools/extra/clangd/index/dex/dexp/CMakeFiles/dexp.dir/Dexp.cpp.o
26.566 [3035/39/267] Building CXX object tools/clang/tools/extra/clang-change-namespace/CMakeFiles/obj.clangChangeNamespace.dir/ChangeNamespace.cpp.o
27.160 [3035/38/268] Building CXX object tools/clang/tools/extra/clangd/tool/CMakeFiles/obj.clangdMain.dir/Check.cpp.o
27.707 [3035/37/269] Building CXX object tools/clang/tools/extra/clangd/refactor/tweaks/CMakeFiles/obj.clangDaemonTweaks.dir/RemoveUsingNamespace.cpp.o
27.937 [3035/36/270] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/ASTSignals.cpp.o
28.464 [3035/35/271] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/IncludeFixer.cpp.o
28.604 [3035/34/272] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/Quality.cpp.o
28.732 [3035/33/273] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/index/BackgroundIndexStorage.cpp.o
28.846 [3035/32/274] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/FindSymbols.cpp.o
29.019 [3035/31/275] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/index/BackgroundRebuild.cpp.o
29.112 [3035/30/276] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/Headers.cpp.o
29.565 [3035/29/277] Building CXX object tools/clang/tools/extra/clangd/tool/CMakeFiles/obj.clangdMain.dir/ClangdMain.cpp.o
29.613 [3035/28/278] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/index/BackgroundQueue.cpp.o
29.805 [3035/27/279] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/index/BackgroundIndexLoader.cpp.o
29.854 [3035/26/280] Building CXX object tools/clang/tools/extra/clangd/refactor/tweaks/CMakeFiles/obj.clangDaemonTweaks.dir/ExtractVariable.cpp.o
29.900 [3035/25/281] Building CXX object tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/SemanticSelection.cpp.o

```

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