Conflicting conan dependencies

[hplatou]

As conan is moving away from using user/channel the package libzip/1.5.2 has been updated with new dependency on zlib/1.2.11 instead of zlib/1.2.11@conan/stable. This gives the following error when building on cse-core (with clean cache or -u):

ERROR: Conflict in libzip/1.5.2@bincrafters/stable
    Requirement zlib/1.2.11 conflicts with already defined zlib/1.2.11@conan/stable
    To change it, override it in your base requirements

Fixing this is easy, buy changing the dependency in conanfile.py to 'zlib/1.2.11'. Doing so reveals another problem. Now thrift are having problems with OpenSSL. This is because OpenSSL has been migrated from conan-community to conan-center and in that process also been renamed from OpenSSL to openssl. This causes errors when building on Windows:

ERROR: Failed requirement 'OpenSSL/1.0.2r@conan/stable' from 'thrift/0.12.0@bincrafters/stable'
ERROR: Requested 'OpenSSL/1.0.2r@conan/stable' but found case incompatible 'openssl'
Case insensitive filesystem can't manage this

I have filed a PR on conan-thrift (bincrafters/community#1016), and it has already been merged, but only on the testing branch and that is not deployed to any repo.
I will build these packages manually for Windows and Linux and deploy to our osp-conan repo.
Then I will file a PR with updated dependencies. This will likely have to be merged into every existing branch to make the builds pass on Jenkins.

[markaren]

Your PR was merged into the stable branch 19 hours ago 👍