Eric Norman created SLING-9656:
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Summary: gracefully handle scenarios where the
AggregateFeaturesMojo gets invoked more than once during the build
Key: SLING-9656
URL: https://issues.apache.org/jira/browse/SLING-9656
Project: Sling
Issue Type: Bug
Affects Versions: slingfeature-maven-plugin 1.3.6
Reporter: Eric Norman
If I combine the "eclipse:eclipse" goal with the "install" or "verify" goal in
the same mvn command line, it results in an error about a duplicate feature
file. The "aggregate-features" goal is getting called twice during this build
scenario and not handling it well.
For example:
{quote}_org-apache-sling-launchpad-testing $_ *mvn clean eclipse:eclipse
verify*{quote}
Results in this error:
{quote}{color:#ff0000}[ERROR] Failed to execute goal
org.apache.sling:slingfeature-maven-plugin:1.3.6:aggregate-features
(aggregate-features) on project org.apache.sling.launchpad.testing: Execution
aggregate-features of goal
org.apache.sling:slingfeature-maven-plugin:1.3.6:aggregate-features failed:
More than one feature file for classifier testing-oak_tar in project
org.apache.sling:org.apache.sling.launchpad.testing:jar:12-SNAPSHOT :
[aggregate testing-oak_tar, aggregate testing-oak_tar] -> [Help 1]{color}{quote}
A workaround is to run the "eclipse:eclipse" goal and the "install" or "verify
goal in separate runs.
Additional info from [~rombert] from the mailing list is below:
{quote}Why this happens:
- the eclipse:eclipse invocation invokes the lifecycle phase generate-
resources [5]
- the AggregateFeaturesMojo is bound to the generate-resources phase as
well [6]
- when running `mvn clean eclipse:eclipse install` the generate-
resources phase is invoked twice, and it seems that the features are
aggregated twice
I think the most reasonable solution would be for the slingfeature-
maven-plugin to handle this gracefully, as it fails also when executing
$ mvn generate-resources generate-resources
{quote}
{quote}[5]:
[https://maven.apache.org/plugins/maven-eclipse-plugin/eclipse-mojo.html]
[6]:
[https://github.com/apache/sling-slingfeature-maven-plugin/blob/6d2918f1c0e8b3162a826149e9ba4bfd475c9216/src/main/java/org/apache/sling/feature/maven/mojos/AggregateFeaturesMojo.java#L47-L51]
{quote}
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