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conan

What is _/_ in a conan package?

Is openssl/1.1.1d@_/_ the same as openssl/1.1.1d? I'm confused by those different suffixes like _/_, conan/stable, bincrafters/stable, are they eventually replaced by openssl/1.1.1d?

Solution

  • Yes. Since Conan 1.18, the namespace (user/channel) has become optional. Thus, the correct reference for the official OpenSSL package now is openssl/<version> e.g.

    conan install -r conan-center openssl/1.1.1d@

    The @ is required to identify that you are using using name/version format. It's a compatibility feature.

    However, the package folder path uses same format yet, e.g.

    /home/user/.conan/data/OpenSSL/1.0.2o/conan/stable/package/6af9cc7cb931c5ad94

    Now, without the namespace, both user and channel has been replaced by the placeholder _/_:

    /home/user/.conan/data/openssl/1.0.2o/_/_/package/6af9cc7cb931c5ad94

    Note that you don't need to touch this, you only need to invoke the reference by putting a @ as terminator.