RFR: 8282567: Improve source-date handling in build system [v5]

[Magnus Ihse Bursie]

On Mon, 7 Mar 2022 14:20:04 GMT, Erik Joelsson <erikj at openjdk.org> wrote:

>> Magnus Ihse Bursie has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Test for updated, not current
>
> doc/building.md line 1546:
> 
>> 1544: You must also make sure your build does not rely on `configure`'s default adhoc
>> 1545: version strings. Default adhoc version strings `OPT` segment include user name,
>> 1546: source directory and timestamp. You can either override just the `OPT` segment
> 
> The timestamp comes from Oracle internal builds using Jib. If you just use configure, the default OPT string is `adhoc.<username>.<base dir name>`.
> 
> As a followup on this, I think we should change jib-profiles.js to extract the date from the buildId and set --with-source-date based on it.

Thanks for noticing.

Yes, I have been thinking the same.

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PR: https://git.openjdk.java.net/jdk/pull/7660