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https://issues.apache.org/jira/browse/IVY-492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12494976
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Gilles Scokart commented on IVY-492:
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Why not just having a separated separated TransactionalFileResolver ? We have
a 0 dependency rule for out-of-the box resolver, but not for 'optional'
resolver.
Of curse, if we do that, we have anyway to find an implementation the begin,
abort, commit.
We put an empty implementation for the classical resolver. Alternatively,
instead of adding the three methods to the resolver interface, we could make it
'optional' by adding the three methods in a subinterface of resolver or a to
separated interface.
> support atomic publish operation
> --------------------------------
>
> Key: IVY-492
> URL: https://issues.apache.org/jira/browse/IVY-492
> Project: Ivy
> Issue Type: New Feature
> Components: Core
> Reporter: Geoff Reedy
>
> Some resolver types (e.g. one that uses subversion) could benefit from
> publishing a module as a single atomic transaction. Currently, each artifact
> (and it's checksums) are published as separate operations, if one of the
> artifact uploads fail (perhaps an artifact is missing or another user is
> trying to publish the same version at the same time) the ivy repository can
> be in an inconsistent state with a half published module. In addition, if
> uploads are logged many entries in the log are generated for a single logical
> operation.
> A possible implementation strategy is to add three new methods to the
> resolver interface:
> beginPublish(ModuleRevisionId)
> abortPublish()
> commitPublish()
> beginPublish would be called before publishing the artifacts of the module,
> abortPublish would be called if there is an error while publishing the
> module, commitPublish would be called if all artifacts were successfully
> published. Existing resolvers could simple implement these methods as no-ops
> to retain the present behavior.
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