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  1. RepositoryPurgeConsumer is executed during repository scanning. Only those "artifact" file types are consumed (<fileType> with "artifact" id in archiva.xml).
  2. The consumer will check the if the deleteReleasedSnapshots field (in RepositoryConfiguration) is enabled. If so, then it will execute CleanupReleasedSnapshotsRepositoryPurge.
    • CleanupReleasedSnapshotsRepositoryPurge will remove all released snapshots from the repository. For example: 1.2, 1.3-SNAPSHOT and 1.3 exists for artifactX in the repo. 1.3-SNAPSHOT will be removed since 1.3 already exists (therefore it has already been released). All metadata files are updated based on the remaining versions of the artifact in the repository.
  3. The consumer will also check the value of the daysOlder field in the configuration of the repository being scanned. If it is not set to 0 (zero), then the consumer will execute the DaysOldRepositoryPurge. Otherwise, it would execute the RetentionCountRepositoryPurge.
    • DaysOldRepositoryPurge checks when the discovered SNAPSHOT artifact was last modified and if it is older by X (daysOlder value) days then the artifact will be removed from the repository.
    • RetentionCountRepositoryPurge on the other hand, checks if the number of "unique versioned" snapshot artifacts in the directory where the discovered artifact resides is LESS THAN the retentionCount value. If the contents are greater than the retention count, then the oldest snapshot artifact (including associated poms, source jars, javadoc jars, etc.) are removed until the total # of unique versioned artifacts is EQUAL TO the retention count. For example, the discovered artifact is ../artifactX/2.0-SNAPSHOT/artifactX-2.0-SNAPSHOT.jar. RetentionCountRepositoryPurge will get a list of the files in ../artifactX/2.0-SNAPSHOT directory. Lets say, ../artifactX/2.0-SNAPSHOT has the ff. contents: artifactX-2.0-1111111-1.jar, artifactX-2.0-1111111-1.pom, artifactX-2.0-1111100-2.jar, artifactX-2.0-1111100-2.pom, artifactX-2.0-SNAPSHOT.jar and artifactX-2.0-SNAPSHOT.pom. If the retention count is 2, then artifactX-2.0-1111111-1.jar and artifactX-2.0-1111111-1.pom are removed from the repo and the 2 newest artifacts (and its associated files, in this case the poms) are retained.
  4. For all these RepositoryPurge implementations, all removed artifacts from the repository are also removed from the database.1

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