[CMake] Tree-like trace of add_subdirectory & include?

[Deij-van Rijswijk, Menno]

Hi Johan,

Have you tried the trace mode of CMake? I got reasonably useful results with

cmake [path] [options] --trace 2>&1 | grep subdirectory

Gr,
Menno

From: CMake <cmake-bounces at cmake.org<mailto:cmake-bounces at cmake.org>> On Behalf Of Johan Holmberg
Sent: Wednesday, August 14, 2019 11:30 AM
To: cmake at cmake.org<mailto:cmake at cmake.org>
Subject: [CMake] Tree-like trace of add_subdirectory & include?

Hi!
I'm trying to understand a large project built with CMake, and think it would be very helpful to get a view of which CMake-file "calls" which other CMake-file. I'm interested in the chain of calls using "add_subdirectory" and "include".

I have looked at the options "--debug-output" and "--trace", but they only give a "flat" view of the call graph. And reconstructing a tree-like representation from that info seems non-trivial to me.

I'm hoping to get something like this (I hope the intended indentation can be seen):

CMakeLists.txt
.... MyMacros/Setup.cmake
.... .... MyMacros/OtherStuff.cmake
.... lib1/CMakeLists.txt
.... lib2/CMakeLists.txt
.... Misc/CMakeLists.txt
.... .... prog_a/CMakeLists.txt
.... .... prog_b/CMakeLists.txt
.... foo/CMakeLists.txt

Is there some way to accomplish this, or something similar?

/Johan Holmberg



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