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https://issues.apache.org/jira/browse/SLING-2612?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carsten Ziegeler resolved SLING-2612.
-------------------------------------

       Resolution: Fixed
    Fix Version/s: Installer API 1.0.0
                   Installer Console 1.0.0
                   Installer Core 3.4.0
    
> Add support for excluding artifacts for installation
> ----------------------------------------------------
>
>                 Key: SLING-2612
>                 URL: https://issues.apache.org/jira/browse/SLING-2612
>             Project: Sling
>          Issue Type: Improvement
>          Components: Installer
>    Affects Versions: Installer Core 3.3.8
>            Reporter: Bertrand Delacretaz
>            Assignee: Carsten Ziegeler
>             Fix For: Installer Core 3.4.0, Installer Console 1.0.0, Installer 
> API 1.0.0
>
>
> The installer currently executes all its operations without checking if they 
> make sense in the current environment, we need more granularity for a few use 
> cases like the ones below.
> 1) SLING-2569: do not install some bundles depending on their headers and the 
> current environment.
> 2) Depending on the current state of the world, a ResourceTransformer needs 
> to behave differently. For example, do not activate a RegisteredResource that 
> contains demo content, but just upload it to the content repository.
> Note that just ignoring resources would not cover case 2), where the "upload" 
> operation happens but not the "activate" operation.
> We might use a new InstallRule interface for that, something like:
> // Service that provides a specific rule
> public interface InstallRule {
>   public boolean shouldExecute(String operation, RegisteredResource r);
> }
> The installer can then have a master InstallRule that queries all InstallRule 
> services in sequence (ordered by service ranking) and ANDs the results.

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