[Feature Request] Add command to rebuild all installed ports

[sharpe5]

I'd like to rebuild the existing vcpkg directory under a newer version of gcc.

I'm wondering - is this possible without manually reinstalling everything from scratch?

Not that it matters, but I'm using WSL v1 with Ubuntu 18.04.

[sharpe5]

I've searched everywhere in the documentation, I cannot seem to find any mention of this use case.

The reason I am asking is that I suspect that gcc v9.3.0 has a stability regression with -O3 compared to v9.2.1, and I want to run some tests to verify this.

Why not just create a new instance of vcpkg?

• git clone https://github.com/Microsoft/vcpkg.git ./vcpkg-9.3.0
• cd ./vcpkg-9.3.0
• ./bootstrap-vcpkg.sh
• modify the linux triplet to use gcc 9.3.0

I personally have 4 instances, vs2017.prod vs2017.test vs2019.prod and vs2019.test each using the compiler, linker and toolset native to that visual studio version.

To save some space I did create a common downloads directory so they share the downloaded files, tools, etc.

[NancyLi1013]

@sharpe5
Thanks for posting this issue.

• If you want to rebuild some ports you already installed, you can remove them and then install them again.

• If you want to rebuild vcpkg instance, you can rerun ./bootstrap-vcpkg.sh.

• Of course, you can clone a new vcpkg as @timautry said above, and then rebuild them.

Please let me know if you still have any concern about this issue.

If there are some problems on gcc v9.3.0, please open a new issue to track it.

Thanks.

[sharpe5]

@timautry, @NancyLi1013 Thank you for your comments.

It would be fantastic to have a command to rebuild all packages. That way, if the compiler was upgraded (or changed), it would be easy to build everything under the new compiler.

I guess the only solution, for now, is to write some sort of script to remove/install the packages one by one? Not that would be difficult, but it would be a bit hacky.

[NancyLi1013]

@strega-nil
Could you please help comment about this issue?

[strega-nil]

I think this is a pretty good idea; if you wanted to add a command to do it @sharpe5, I could probably offer assistance :)

[sharpe5]

@strega-nil Thank you for the offer, that is very generous. However I don't think I have enough C++ experience yet to add a command like this.

[strega-nil]

Fair enough :)