[question] Conan 1.42.2 vs 1.43.0 for cmake target names

[gabyx]

Why does Conan 1.42
produce for

  def build_requirements(self):
      self.build_requires("gtest/1.11.0", force_host_context=True)

a target Gtest::gtest (with find_package(GTest CONFIG REQUIRED))
while
conan 1.43 produces only gtest.

I dont get that why this changed?

[gabyx]

Does that break with 1.43 because:

https://conan.io/center/gtest?tab=recipe

        self.cpp_info.components["libgtest"].set_property("cmake_target_name", "gtest")

instead of GTest::gtest ?

[memsharded]

Yes, that is what is happenning. We had to do a breaking change in the cmake_target_name property, as it was causing too many struggles in the migration of legacy generators like cmake_find_package.

Please read in https://docs.conan.io/en/latest/conan_v2.html#new-properties-model-for-the-cpp-info-in-conan-2-0-generators

The idea:

• cmake_target_name now only for CMakeDeps
• cmake_target_name is always an absolute target name like Gtest::gtest, to make it more flexible
• legacy generators like cmake_find_package will only listen to .names field in cpp_info
• We introduced back the .names in ConanCenter recipes that had removed it
• We are fixing the cmake_target_name in ConanCenter as quickly as possible

[gabyx]

Thanks a lot, for the info!
Thats very good to know. As a suggestion, maybe, include that it breaks ConanCenter also in the Changelog, so that you dont need to answer such question anymore. Maybe you can later drop, the mention in the Changelog, as soon as it is fixed.

[memsharded]

Thats very good to know. As a suggestion, maybe, include that it breaks ConanCenter also in the Changelog, so that you dont need to answer such question anymore. Maybe you can later drop, the mention in the Changelog, as soon as it is fixed.

Sure! We are actually writing some more detailed explanations, that we wanted to link, probably tomorrow. But feel free to send PRs for this kind of things too, the docs are open source, so this can be contributed quickly and easily too, and that helps too.

[gabyx]

Jup!

[czoido]

There's a PR already open for gtest to fix targets: conan-io/conan-center-index#8324
And the guide PR is already open as well: conan-io/conan-center-index#8415

[gabyx]

conan-io/docs#2326

[gabyx]

Is there a collecting ticket which makes ConanCenter compatible with 1.43.0 ? So I could include it in the status banner in
conan-io/docs#2326

[memsharded]

Closing this ticket as outdated, seems solved too, but please don't hesitate to create new tickets if necessary for any further question. Thanks!