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https://ovirt-jira.atlassian.net/browse/OVIRT-1402?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Barak Korren updated OVIRT-1402:
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Epic Link: OVIRT-403
> Make pipeline lader more flexible
> ---------------------------------
>
> Key: OVIRT-1402
> URL: https://ovirt-jira.atlassian.net/browse/OVIRT-1402
> Project: oVirt - virtualization made easy
> Issue Type: Improvement
> Components: Jenkins
> Reporter: Barak Korren
> Assignee: infra
>
> The pipeline loader, used to load pipeline scripts from the Jenkins repo is
> missing a couple of useful features:
> # It takes on a node and keeps it. If the pipelines are long, the node is
> kept for the whole time even if its not used. It would be a useful
> optimization to let pipeline scripts specify code that runs without the node.
> # It is impossible to access functions that are defined in the loader from
> the pipeline scripts.
> The following solution is offered to provide both features:
> We will change the loader to look for a "{{loader_main}}" function in the
> pipeline script. If it exists it will call it passing itself as an argument.
> This way that function will get access to function in the loader and can
> store them for use by other functions.
> If a "{{main}}" function exists in the pipeline script in addition to the
> "{{loader_main}}" function, if will be called outside of the "{{node}}" block
> in the loader. This way we can run code in "{{main}}" that does not need the
> loader node.
> If a "{{loader_main}}" function will not exist in a pipeline, the "{{main}}"
> function will be called from inside the "{{node}}" block, like it is today.
> This way we maintain compatibility with existing pipeline scripts.
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