[jira] [Closed] (MNG-7960) Artifact collection filtering

["Tamas Cservenak (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MNG-7960?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tamas Cservenak closed MNG-7960.
--------------------------------
    Resolution: Fixed

> Artifact collection filtering
> -----------------------------
>
>                 Key: MNG-7960
>                 URL: https://issues.apache.org/jira/browse/MNG-7960
>             Project: Maven
>          Issue Type: New Feature
>          Components: Artifacts and Repositories
>            Reporter: Tamas Cservenak
>            Assignee: Tamas Cservenak
>            Priority: Major
>             Fix For: 4.0.0, 4.0.0-alpha-11
>
>
> Exposed work from MRESOLVER-451 and MRESOLVER-460: allow for various filterings.
> User should be able to "tune" range processing. Also, as this affects resolution, ideally these "tuned" parameters should be stored along project, especially if project relies on these (ie. in {{.mvn/maven.config}}).
> Explanation: Maven is notoriously "bad" when ranges are being used. Hence, this issue introduces (range) version filtering support. The configuration accepts an "expression" (CSV) of filters. Supported filters are:
> * "h" (equivalent of "h(1)") or "h(N)" - that selects "top N" versions from range
> *  "l" (equivalent of "l(1)") or "l(N)" - that selects "bottom N" versions from range
> * "s" snapshot filter: if root/project is snapshot, will allow snapshots in ranges, otherwise snapshot versions are filtered out (also see Resolver config {{aether.snapshotFilter}} present in Resolver 1.x but has no effect in Maven3 as it is not used).
> * "e(G:A:V)" exclusion, if range for G:A is processed, V is _excluded_ from range. V can be version range as well, then whole range is excluded.
> The built expressions are evaluated in-order, and filtering effect is accumulated. Hence, expression like "h(5),l" will return 5th highest version, etc.
> This depends on resolver release.



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