JSON Compilation Database

[ivan-pi]

I was scrolling through the product sheet of Codee, a software product for automated code inspection.

Their Datasheet (PDF, 540 KB) mentions they support integration with fpm:

The documentation for the CMake and Ninja options is here:

• CMake: https://cmake.org/cmake/help/latest/variable/CMAKE_EXPORT_COMPILE_COMMANDS.html
• Ninja: https://ninja-build.org/manual.html#_extra_tools (search for compdb)

It looks like the compilation database originated from the Clang/LLVM community: https://clang.llvm.org/docs/JSONCompilationDatabase.html

The tool bear mentioned for FPM is this one: https://github.com/rizsotto/Bear. It intercepts your compile commands somehow, and generates the JSON database.

I wonder if this means, there are commercial users of Codee (and fpm), that asked for it.

[ivan-pi]

If I understand correctly, the idea is that your build system exports the compilation_commands.json file in the main project directory. Static analysis tools, e.g. based on clang (and flang, or lfortran), can then use this information to produce various reports. More info under LibTooling.

Perhaps some of you are interested in this?

(cc @certik, @gnikit, @everythingfunctional, @rouson)

[everythingfunctional]

I have had a few conversations with the Codee developers. This is a functionality that would be useful for them. I was unaware of the bear tool, or that they had devised a workaround using it.

[manuelarenaz]

We have added additional public documentation in the following links:

https://docs.codee.com/faqs#what-tools-are-available-for-generating-the-compile_commandsjson-file

https://docs.codee.com/faqs#what-information-is-store-in-the-compile_commandsjson-file

Just in case you find it useful for FPM development roadmap.