Maven Repository Metadata Model

Metadata

Per-directory repository metadata repository-metadata.xml.

A directory may represent 3 types of content: "groupId", "groupId/artifactId" or "groupId/artifactId/version".

Most metadata content has a meaning when the directory represents a "groupId/artifactId" (groupId, artifactId, versioning)

<metadata xmlns="http://maven.apache.org/METADATA/1.2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/METADATA/1.2.0 https://maven.apache.org/xsd/repository-metadata-1.2.0.xsd"
  modelVersion=.. >
  <groupId/>
  <artifactId/>
  <versioning>
    <latest/>
    <release/>
    <versions/>

    <lastUpdated/>

    <snapshot>
      <timestamp/>
      <buildNumber/>
      <localCopy/>
    </snapshot>
    <snapshotVersions>
      <snapshotVersion>
        <classifier/>
        <extension/>
        <value/>
        <updated/>
      </snapshotVersion>
    </snapshotVersions>
  </versioning>
  <version/>

  <plugins>
    <plugin>
      <name/>
      <prefix/>
      <artifactId/>
    </plugin>
  </plugins>
</metadata>

metadata

No description.

Attribute	Type	Description
`modelVersion`	`String`	The version of the underlying metadata model.

Element	Type	Description
`groupId`	`String`	The groupId when this directory represents "groupId/artifactId" or "groupId/artifactId/version".
`artifactId`	`String`	The artifactId when this directory represents "groupId/artifactId" or "groupId/artifactId/version".
`versioning`	`Versioning`	Versioning information when this directory represents "groupId/artifactId" or "groupId/artifactId/version".
`version`	`String`	The base version (i.e. ending in `-SNAPSHOT`) when this directory represents a "groupId/artifactId/version" for a SNAPSHOT.
`plugins/plugin*`	`List<Plugin>`	(Many) The set of plugins when this directory represents a "groupId".

versioning

Versioning information for "groupId/artifactId" or "groupId/artifactId/version" SNAPSHOT

Element	Type	Description
`latest`	`String`	What the last version added to the directory is, including both releases and snapshots ("groupId/artifactId" directory only)
`release`	`String`	What the last version added to the directory is, for the releases only ("groupId/artifactId" directory only)
`versions/version*`	`List<String>`	(Many) Versions available of the artifact (both releases and snapshots) ("groupId/artifactId" directory only)
`lastUpdated`	`String`	When the metadata was last updated (both "groupId/artifactId" and "groupId/artifactId/version" directories). The timestamp is expressed using UTC in the format yyyyMMddHHmmss.
`snapshot`	`Snapshot`	The current snapshot data in use for this version ("groupId/artifactId/version" only)
`snapshotVersions/snapshotVersion*`	`List<SnapshotVersion>`	(Many) Information for each sub-artifact available in this artifact snapshot. This is only the most recent SNAPSHOT for each unique extension/classifier combination.

snapshot

Snapshot data for the last artifact corresponding to the SNAPSHOT base version

Element	Type	Description
`timestamp`	`String`	The timestamp when this version was deployed. The timestamp is expressed using UTC in the format yyyyMMdd.HHmmss.
`buildNumber`	`int`	The incremental build number Default value: `0`
`localCopy`	`boolean`	Whether to use a local copy instead (with filename that includes the base version) Default value: `false`

snapshotVersion

Versioning information for a sub-artifact of the current snapshot artifact.

Element	Type	Description
`classifier`	`String`	The classifier of the sub-artifact. Each classifier and extension pair may only appear once. Default value:
`extension`	`String`	The file extension of the sub-artifact. Each classifier and extension pair may only appear once.
`value`	`String`	The resolved snapshot version of the sub-artifact.
`updated`	`String`	The timestamp when this version information was last updated. The timestamp is expressed using UTC in the format yyyyMMddHHmmss.

plugin

Mapping information for a single plugin within this group.

Element	Type	Description
`name`	`String`	Display name for the plugin.
`prefix`	`String`	The plugin invocation prefix (i.e. eclipse for eclipse:eclipse)
`artifactId`	`String`	The plugin artifactId