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https://issues.apache.org/jira/browse/SLING-842?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12667634#action_12667634
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Felix Meschberger commented on SLING-842:
-----------------------------------------
Implemented this support in Rev. 738046.
* The last modification time stamp of the launcher JAR is used as marker value
* Each file in the launchpad is analysed:
- new bundle: install and set startlevel
- updated bundle: update the installed bundle
- existing bundle: do nothing
Note that the startlevel assignment is only done for newly installed bundles.
The reason for this is, that the assignment of a start level is an
administrative task and start levels of existing bundles may already be set
according to administrator's decision. For newly installed bundles such a
decision has not been taken yet and the launchpad provides a default value.
> Update installed bundles with updated and new bundles from launchpad
> --------------------------------------------------------------------
>
> Key: SLING-842
> URL: https://issues.apache.org/jira/browse/SLING-842
> Project: Sling
> Issue Type: Improvement
> Affects Versions: Launchpad Base 2.0.2
> Reporter: Felix Meschberger
> Assignee: Felix Meschberger
> Fix For: Launchpad Base 2.0.4
>
>
> The BootstrapInstaller should be enhanced to be able to update bundles which
> are already installed in the framework. Currently, the BootstrapInstaller
> creates a marker file, which causes the BootstrapInstaller to not do anything
> in future invocations.
> This may be enhanced such that the marker file contains the timestamp of the
> launcher JAR file. If a new launcher JAR file is used the BootstrapInstaller
> should read the enclosed list of bundles and decide for each bundle file
> whether to install it, update an existing bundle or ignore it. This would
> also allow for an simple update path for existing Sling installations.
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