clean-after-build flag for manifest builds

[greenbrettmichael]

The clean-after-build build flag for vcpkg install is a flag that deletes various folders after a port is installed that is no longer needed. It doesn't appear that it is possible to do this while using vcpkg in manifest mode. This could reduce disk space usage on our teams and most critically, prevent CI builds from failing due to hard disk space while building the first cache after updating vcpkg. (Github Actions does not guarantee more than 20GB of hard disk space on runners, which is easily eaten by vcpkg buildtrees).

I was not able to find what could be a good mechanism in https://github.com/microsoft/vcpkg-tool to mimic the clean-after-build behavior in manifest mode.

[autoantwort]

It also works in manifest mode.

vcpkg install --clean-after-build works without problems.

[autoantwort]

https://learn.microsoft.com/en-us/vcpkg/commands/install#--clean-after-build
If cleans the folders after building a dependency and not at end end after all dependencies are build.

[autoantwort]

What do you want more?

[greenbrettmichael]

oh I see, so you would call this command before invoking the toolchain. Then those would be installed to the local vcpkg installed. I will close, thanks

[autoantwort]

invoking the toolchain?

Cmake integration? Then you would set VCPKG_INSTALL_OPTIONS to --clean-after-build. For example -DVCPKG_INSTALL_OPTIONS=--clean-after-build or set(VCPKG_INSTALL_OPTIONS "--clean-after-build")

[greenbrettmichael]

exactly what I was looking for! thanks