在 Windows 上使用 cmake 和 VS Code 时没有compile_commands.json 文件

Question

我正在尝试将 Clang-Tidy 静态分析工具集成到我的构建系统中。我的设置遇到一些问题。

步骤cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=ON ..不生成compile_commands.json文件。因此，clang-tidy 给出了以下错误。

>cmake --build .结果

Could not auto-detect compilation database from directory "C:/dev/my-project/build/compile_commands.json"
  No compilation database found in C:\dev\my-project\build\compile_commands.json or any parent directory
  fixed-compilation-database: Error while opening fixed database: no such file or directory
  json-compilation-database: Error while opening JSON database: no such file or directory
  Running without flags.
  Error while processing C:\dev\my-project\src\.
CUSTOMBUILD : error : unable to handle compilation, expected exactly one compiler job in '' [clang-diagnostic-error] [C:\dev\my-project\build\analyze_clang_tidy.vcxproj]
  Suppressed 1 warnings (1 in non-user code).
  Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.

Clang-tidy.cmake文件

set(CLANG_TIDY_CHECKS "-checks='${CLANG_TIDY_CHECKS}'")

            add_custom_target(analyze_clang_tidy ALL
                COMMAND ${CLANG_TIDY}
                -p ${CMAKE_BINARY_DIR}/compile_commands.json
                ${CLANG_TIDY_CHECKS}
                -header-filter='.*'
                ${CMAKE_CURRENT_SOURCE_DIR}/src/
                WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
                COMMENT "Static code analysis with Clang-Tidy"
            )

另请查看配置结果

-- Building for: Visual Studio 14 2015
-- Selecting Windows SDK version  to target Windows 10.0.17763.
-- The CXX compiler identification is MSVC 19.0.24215.1
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/cl.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
Default build type: Debug
iD MSVC
-- ccache found and enabled
-- Configuring done
-- Generating done
-- Build files have been written to: C:/dev/my-project/build

int main() {...}我的文件夹中有一个简单的 hello world ../src/。

请向我建议如何在 Windows 上使用 CMake 和 VS code 生成compile_commands.json 文件。谢谢你！

Answer 1

请参阅https://cmake.org/cmake/help/latest/variable/CMAKE_EXPORT_COMPILE_COMMANDS.html

具体来说这个注释：

注意此选项仅由 Makefile 生成器和 Ninja 实现。它在其他生成器上被忽略。

相反，您可以编写一个 python 脚本来为您生成该格式，类似于此工具： https: //github.com/nickdiego/compiledb

或者，实际上，您不需要compile_commands.json。您可以定义CMAKE_<LANG>_CLANG_TIDY变量来自动触发 clang-tidy： https://cmake.org/cmake/help/latest/variable/CMAKE_LANG_CLANG_TIDY.html

看看我是如何为我的项目做到这一点的1 2 3