Integrated: 8254691: Enable GitHub actions for jfx repo

[Kevin Rushforth]

On Sat, 24 Oct 2020 14:41:08 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> This is a proposed fix for [JDK-8254691](https://bugs.openjdk.java.net/browse/JDK-8254691) to enable GitHub actions for the jfx repo. It is similar in purpose to what was done for the jdk repo.
> 
> Once this is integrated, and subsequently merged into your personal fork, a GitHub Actions workflow will run on every push to any branch in your personal fork except a production branch (so that syncing the upstream `master` or `jfx*` branch won't cause a build) or any branch whose name that starts with `WIP`.
> 
> The workflow does a build and (headless) test run on all three platforms: Linux, macOS, and Windows. The build is done without building the native media or WebKit libraries. Web tests are excluded.
> 
> Here is the job that resulted from the most recent push to the `8254691-github-actions` branch in my personal fork:
> 
> https://github.com/kevinrushforth/jfx/actions/runs/329355746
> 
> The workflow checks out the sources for the branch, downloads the boot JDK, installs the needed software packages, and then runs two build steps, `gradlew all` followed by `gradlew test -x :web:test`.
> 
> The Skara tooling will process the results of the GitHub actions run, and show them in the **Testing** section of a pull request, as you can see below.
> 
> Follow-on work:
> 
> 1. Get BOOT JDK parameters from `build.properties`. Currently the location of the bootJDK is hardcoded in the [`submit.yml`](https://github.com/kevinrushforth/jfx/blob/8254691-github-actions/.github/workflows/submit.yml) file. This should be obtained from build.properties; we might need to add a couple more properties.
> 
> 2. Check the shasum of the downloaded bootJDK and enable caching of the JDK (in order to save download time). This requires step 1 to be done first.
> 
> 3. Locate the Visual Studio compiler on Windows. The location and version of the Microsoft Visual Studio 2019 compiler is hard-coded which will break if and when the GitHub build farm updates their Windows system. This will require making our build itself a little smarter, possibly using `vswhere`.

This pull request has now been integrated.

Changeset: 51c09e5a
Author:    Kevin Rushforth <kcr at openjdk.org>
URL:       https://git.openjdk.java.net/jfx/commit/51c09e5a
Stats:     285 lines in 1 file changed: 285 ins; 0 del; 0 mod

8254691: Enable GitHub actions for jfx repo

Reviewed-by: arapte, jvos

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PR: https://git.openjdk.java.net/jfx/pull/338