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Add FormatStyle setting #169727

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21 changes: 21 additions & 0 deletions clang-tools-extra/clangd/tool/ClangdMain.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -243,6 +243,25 @@ opt<std::string> FallbackStyle{
init(clang::format::DefaultFallbackStyle),
};

opt<std::string> FormatStyle{
"style",
cat(Features),
desc("Set coding style. <string> can be:\n"
"1. A preset: LLVM, GNU, Google, Chromium, Microsoft,\n"
" Mozilla, WebKit.\n"
"2. 'file' to load style configuration from a\n"
" .clang-format file in one of the parent directories\n"
" of the source file.\n"
" If no .clang-format file is found, falls back to\n"
" --fallback-style.\n"
" --style=file is the default.\n"
"3. 'file:<format_file_path>' to explicitly specify\n"
" the configuration file.\n"
"4. \"{key: value, ...}\" to set specific parameters, e.g.:\n"
" --style=\"{BasedOnStyle: llvm, IndentWidth: 8}"),
init(clang::format::DefaultFormatStyle),
};

opt<std::string> EnableFunctionArgSnippets{
"function-arg-placeholders",
cat(Features),
Expand Down Expand Up @@ -816,6 +835,8 @@ clangd accepts flags on the commandline, and in the CLANGD_FLAGS environment var
}
if (FallbackStyle.getNumOccurrences())
clang::format::DefaultFallbackStyle = FallbackStyle.c_str();
if (FormatStyle.getNumOccurrences())
clang::format::DefaultFormatStyle = FormatStyle.c_str();

// Validate command line arguments.
std::optional<llvm::raw_fd_ostream> InputMirrorStream;
Expand Down