Il dom 29 set 2019, 12:16 Robert Scholte <rfscho...@apache.org> ha scritto:
> I would think that all project.* properties represent the pom.xml and are
> immutable. To be more precise: the same pom.xml should effectively stay
> the same with every build.
> Instead this seems more related the (maven)session, right?
>
If I understand correctly the value f this property is to be committed in
the source code.
Some thoughts:
- it should default to 'now' sampled at the beginning of the session
- it can be overridden with a value writen in the pom or on a source file
- it must be sampled and commited as final value during a 'release process'
Enrico
> Robert
>
> On Sun, 29 Sep 2019 11:19:45 +0200, Hervé BOUTEMY <herve.bout...@free.fr>
>
> wrote:
>
> > regarding the property name, I had an idea:
> >
> > why not do like we already did for ${project.build.sourceEncoding},
> ie.
> > mimic
> > a future element in pom.xml, in build?
> >
> > could be project.build.timestamp?
> >
> > Le samedi 28 septembre 2019, 17:55:24 CEST Hervé BOUTEMY a écrit :
> >> Achieving Reproducible Builds require only one parameter: plugins that
> >> create zip or tar archives require a fixed timestamp for entries
> >>
> >> Putting that parameter as a pom property with a well known name and
> >> value
> >> format permits to share the configuration between every packaging
> >> plugin.
> >> This also has the advantage that child poms will inherit from parent
> >> value,
> >> and eventually override.
> >>
> >> The question is: *what property name and what value format should we
> >> keep?*
> >>
> >> For the PoC, I chose to extrapolate from a convention from Reproducible
> >> Builds project, which is very Linux-oriented: SOURCE_DATE_EPOCH
> >> environment
> >> variable, that I transformed into source-date-epoch property name,
> >> keeping
> >> the "date + %s" value
> >> https://reproducible-builds.org/docs/source-date-epoch/
> >>
> >>
> >> But I feel we can do a more user-readable solution by choosing another
> >> name
> >> and format, like "reproducible-build-timestamp" with an ISO-8601
> >> combined
> >> date and time representation
> >>
> >>
> >> WDYT? Any other idea?
> >>
> >> Regards,
> >>
> >> Hervé
> >>
> >>
> >>
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> >
> >
> >
> >
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