RFR: 8287906: Rewrite of GitHub Actions (GHA) sanity tests [v4]

[Magnus Ihse Bursie]

On Fri, 10 Jun 2022 07:14:33 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> .github/workflows/build-cross-compile.yml line 89:
>> 
>>> 87:           sudo apt-get install gcc-${{ inputs.apt-gcc-version }} g++-${{ inputs.apt-gcc-version }} libxrandr-dev${{ inputs.apt-architecture }} libxtst-dev${{ inputs.apt-architecture }} libcups2-dev${{ inputs.apt-architecture }} libasound2-dev${{ inputs.apt-architecture }}
>>> 88:           sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 100 --slave /usr/bin/g++ g++ /usr/bin/g++-10
>>> 89:           sudo apt-get install gcc-10-${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}=10.3.0-1ubuntu1~20.04cross1 g++-10-${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}=10.3.0-1ubuntu1~20.04cross1
>> 
>> Should `10.3.0-1ubuntu1~20.04cross1` also go into common "var", like `apt-gcc-version` did?
>
> Also, I think we can speed up this part by merging two `apt-get install` invocation lines together. It was separate before, because it was two steps, unnecessary now.

Ideally, all version information should be centralized somewhere. I plan to take a second round on this code when it's been pushed to try to figure out the best way to achieve this. (Possibly in github-versions.conf, possibly in main.yml, depending on what makes the most sense given the GHA limitations). 

But I can extract out the cross-compilation suffix already in this PR, yes.

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PR: https://git.openjdk.org/jdk/pull/9063