On Fri, 26 Jan 2024 19:33:49 GMT, Aleksey Shipilev <sh...@openjdk.org> wrote:

>> Current GHA runs produce lots of warnings:
>> 
>> Node.js 16 actions are deprecated. Please update the following actions to 
>> use Node.js 20: actions/cache@v3, actions/download-artifact@v3, 
>> actions/upload-artifact@v3. For more information see: 
>> https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.
>> 
>> We can upgrade to new actions to get the Node20.
>> 
>> Release/migration notes:
>> https://github.com/actions/cache#whats-new
>> https://github.com/actions/upload-artifact/blob/main/docs/MIGRATION.md
>> https://github.com/actions/download-artifact/blob/main/docs/MIGRATION.md
>> https://github.com/actions/github-script#breaking-changes
>> 
>> There is also msys2/setup-msys2, which was pinned by 
>> [JDK-8310259](https://bugs.openjdk.org/browse/JDK-8310259). We need at least 
>> 2.21.0 to get Node 20:
>> https://github.com/msys2/setup-msys2/blob/main/CHANGELOG.md. I think we can 
>> unpin msys2 at this point.
>> 
>> I don't think any of the migration problems outlined in those notes apply to 
>> our workflows.
>> 
>> Additional testing:
>>  - [x] 3x GHA with cleaned caches
>>  - [x]  3x GHA with populated caches (default)
>
> Aleksey Shipilev has updated the pull request incrementally with one 
> additional commit since the last revision:
> 
>   Also update github-script

Looks good to me. 

I'm not even sure why you are calling this "unpinning" of msys. You are fixing 
it at `@v2.22.0`. Unless the msys action is in the habit of releasing new 
updates with the same patch version, then this is in effect a pin. The 
difference is just that the previous pin was for a specific commit, rather than 
a released version, which is (in my eyes) a markedly worse strategy. (I guess 
we did that, instead of reverting to a specific released version, due to 
problems finding a working version, but I don't remember).

To really "unpin" msys would be to require just a specific major version, like 
`msys2/setup-msys2@v2`. You are not doing that, and I don't recommend doing 
that. :-)

-------------

Marked as reviewed by ihse (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/17572#pullrequestreview-1848440526

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