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https://issues.apache.org/jira/browse/SLING-8058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16676350#comment-16676350
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Carsten Ziegeler edited comment on SLING-8058 at 11/7/18 8:33 AM:
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Due to the way the maven mojo mapping works, the actual syntax for the
configuration is slightly different than above. This is the current
implementation of the FeatureSelectionConfig:
{noformat}
<!-- The configuration can have a list of filesInclude and filesExclude:
If at least one of them is specified, local feature files are tried to be
included
-->
<filesInclude>**/*.json</filesInclude>
<filesInclude>foo.json</filesInclude>
<filesExclude>lalalla</filesExclude>
<!-- The configuration can have a list of includeArtifact specifying external
features: -->
<includeArtifact>
<groupId>g</groupId>
<artifactId>a</artifactId>
<version>1.0</version>
</includeArtifact>
<includeArtifact>
<groupId>g2</groupId>
<artifactId>a2</artifactId>
<version>2.0</version>
<classifier>foo</classifier>
</includeArtifact>
<!-- The configuration can have a list of includeClassifier, selecting local
feature files based on classifiers.
This classifier can either point to a feature file as part of the project
or to an aggregated feature file of the project.
If the asteriks is used as a classifier, all local features files are
included, if an empty classifier is specified, the feature
without a classifier (main project artifact) is used -->
<includeClassifier>myclassifier</includeClassifier>
<includeClassifier>aggregate</includeClassifier>
{noformat}
The various mojos can use this approach by creating a configuration subclass of
FeatureSelectionConfig (an example is the AggregateConfig class) and the mojo
should extend AbstractIncludingFeatureMojo and call
getSelectedFeatures(config) with the config object to get all selected features.
was (Author: cziegeler):
Due to the way the maven mojo mapping works, the actual syntax for the
configuration is slightly different than above. This is the current
implementation of the FeatureSelectionConfig:
{noformat}
<!-- The configuration can have a list of featureFilesInclude and
featureFilesExclude:
If at least one of them is specified, local feature files are tried to be
included
-->
<featureFilesInclude>**/*.json</featureFilesInclude>
<featureFilesInclude>foo.json</featureFilesInclude>
<featureFilesExclude>lalalla</featureFilesExclude>
<!-- The configuration can have a list of featureArtifact specifying external
features: -->
<featureArtifact>
<groupId>g</groupId>
<artifactId>a</artifactId>
<version>1.0</version>
</featureArtifact>
<featureArtifact>
<groupId>g2</groupId>
<artifactId>a2</artifactId>
<version>2.0</version>
<classifier>foo</classifier>
</featureArtifact>
<!-- The configuration can have a list of featureClassifier, selecting local
feature files based on classifiers.
This classifier can either point to a feature file as part of the project
or to an aggregated feature file of the project.
If the asteriks is used as a classifier, all local features files are
included, if an empty classifier is specified, the feature
without a classifier (main project artifact) is used -->
<featureClassifier>myclassifier</featureClassifier>
<featureClassifier>aggregate</featureClassifier>
{noformat}
The various mojos can use this approach by creating a configuration subclass of
FeatureSelectionConfig (an example is the AggregateConfig class) and the mojo
should extend AbstractIncludingFeatureMojo and call
getSelectedFeatures(config) with the config object to get all selected features.
Please note that AggregateConfig should be named Aggregate but that would clash
with the current mojos. As soon as the mojos are changed to use this new
approach the renaming can be done. (Maven looks for a class in the same project
based on the property name)
> Make configuration of slingfeature-maven-plugin consistent
> ----------------------------------------------------------
>
> Key: SLING-8058
> URL: https://issues.apache.org/jira/browse/SLING-8058
> Project: Sling
> Issue Type: Improvement
> Components: Feature Model, Maven Plugins and Archetypes
> Reporter: Carsten Ziegeler
> Priority: Major
> Fix For: slingfeature-maven-plugin 1.0.0
>
>
> The slingfeature-maven-plugin as 2 goals: aggregate-features and repository
> that both have slightly different ways of selecting included features. Then
> it's also possibly to select via includes at the top level configuration of
> the feature.
> The top-level includes specifies the initial set of feature files used, the
> other goals can then refine this subset.
> We should make these consistent.
> They should have the same way to:
> 1. include/exclude feature files from the total set
> 2. refer to a feature file in a maven repository
> 3. refer to an aggregated feature done in the same pom, e.g. by just
> referring to its classifier, e.g. <aggregateClassifier>
> The code that handles this should probably be shared in the ProjectHelper and
> it might make sense to create a new shared parent base class, e.g.
> AbstractIncludingFeatureMojo extends AbstractFeatureMojo to hold the fields
> or something like this.
> The way it works is:
> * The plugin is configured with a directory (features parameter), includes
> and excludes for that directory (featuresIncludes, featuresExcludes
> parameters) - all of these are defined in the AbstractFeatureMojo
> * There is a similar set for testing features in the AbstractFeatureMojo
> * The DependencyLifecycleParticipant for the plugin triggers the Preprocessor
> which uses all of the above information to create the set of available
> features for this project, let's call it the global set of features
> * The global set of features is the set of features every mojo should use.
> The mojo gets them through the ProjectHelper
> * The above mechanism should stay as is and as the Preprocessor is the only
> one reading the above mentioned parameters, they are private and not to be
> used by any mojo directly
> * The aggregate and the repository mojo (and potentially more mojos in the
> future) use the above created global set of features and *further* filter it
> using includes and excludes. These are additional includes/excludes that only
> work on this global set, therefore they should not be part of the
> AbstractFeatureMojo
> * All these mojos (aggregate and repository) should use the same
> configuration and work similar with selecting features
> * It makes sense to create a new abstract class to unify this selection, this
> abstract class would inherit from AbstractFeatureMojo, add the additional
> includes/excludes handling and be used by the mojos like the aggregate and
> the repository mojo
> I suggest we use the following general configuration format.
> For includes, excludes of files from the current projects
> {noformat}
> <featureFiles>
> <include>base.json</include>
> <include>something/*.json</include>
> <exclude>something/badfile.json</exclude>
> </featureFiles>
> {noformat}
> For features from external projects
> {noformat}
> <featureArtifact>
> </groupId></artifactId>etc.
> </featureArtifact>
> {noformat}
> For aggregates from the same project
> {noformat}
> <aggregateFeature>CLASSIFIER_NAME</aggregateFeature>
> {noformat}
> The configuration for the aggregate mojo is then:
> {noformat}
> <aggregate>
> <featureFiles/>*
> <featureArtifact>*
> <aggregateFeature>*
> </aggregate>
> {noformat}
> The configuration for the repository mojo becomes similarly:
> {noformat}
> <repository>
> <featureFiles/>*
> <featureArtifact>*
> <aggregateFeature>*
> <artifact>*
> </repository>
> {noformat}
> Note that the repository mojo gets an additional configuration for artifacts
> to be added to the repository, these are not features
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