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https://issues.apache.org/jira/browse/MNG-6276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16143478#comment-16143478
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Zlika commented on MNG-6276:
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"reproducible builds" is indeed the most widely used term, I don't think it
would be a good idea to user another one. Moreover, the mathematical term
"idempotent" has a different meaning: if Maven is considered as a "build"
function with source code as its input and jar file as its output, idempotent
would mean that we can apply Maven on the output (the jar file) of a previous
invocation and have the same output, which is not the case.
I totally agree with Hervé's first comment to create a property name like
project.build.reproducible and use it the same way as we use
project.build.sourceEncoding. It could be a boolean with False as its default
value. The next step would be to identify the plugins that create
unreproducible bits and create JIRA issues for them.
I don't know the benefits of an annotation for this kind of feature, but keep
in mind that this is different than thread-safeting: a plugin IS thread-safe or
not, whereas a plugin COULD be configured not to generate unreproducible bits.
A wiki page may help to document and organize the information on this subject.
> Support reproducible builds
> ---------------------------
>
> Key: MNG-6276
> URL: https://issues.apache.org/jira/browse/MNG-6276
> Project: Maven
> Issue Type: New Feature
> Components: core, General
> Reporter: Paolo Sacconier
>
> A venerable build system like maven should support full build reproduibilty
> (i.e. producing bit a bit identical binaries from the same source).
> As initiatives like https://reproducible-builds.org gain traction and the
> news of the recent Debian policy change to mandate this build behavior (see
> https://reproducible.alioth.debian.org/blog/posts/121/), this seems a feature
> that needs to be considered for inclusion into maven core.
> There is an indipendent ongoing effort to support this feature and the author
> stated that he has found interest from maven project to integrate his work:
> https://github.com/Zlika/reproducible-build-maven-plugin/issues/6#issuecomment-325005883
> I hope this issue helps kickstart the effort.
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