[librdkafka] How to rebuild it

[vipcxj]

Is your feature request related to a problem? Please describe.

To build librdkafka with sasl support, I need to install libsasl2-dev in the host machine before vcpkg building it. I didn't realize it until my program ran and threw an exception. Because no port feature named sasl. Since the port is built, I need to rebuild it without any changes that VCPKG can perceive.Because of the cache, I can't do this.I tried vcpkg --help, and I didn't see the relevant commands. I also found that there was a lot of cache under ~/.cache/vcpkg. But the composition of these cache is not what humans can understand. So I have to delete the entire folder, which causes all my PORT to be rebuilt

Proposed solution

add a command to rebuild special port, or just remove the cache of it

Describe alternatives you've considered

No response

Additional context

No response

[dg0yt]

Doesn't vcpkg print which cached artifact file it uses? You could delete just that file.

• System dependencies are froned upon. They aren't tracked for caching, and they can pull in unwanted transitive dependencies. Ports are expected to actively avoid them in most cases.
• Caching is controlled by ABI hashes. And the hash is the artifact filename. https://learn.microsoft.com/en-us/vcpkg/reference/binarycaching#abi-hash
• You can control how the cache is used when installing.
  • --binarysource=<source>
  • --no-binarycaching
• --editable disables caching, too.

[vipcxj]

No, vcpkg print a dir relate to cache, I ls to it and found it just the port dir which include portfile.cmake, not binary. I delete it, nothing happen.

• You can control how the cache is used when installing.

  • --binarysource=<source>
  • --no-binarycaching
• --editable disables caching, too.

I need cache, I just don't need the cache relate to special port.