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I would like to provide a simple URL that will always return the latest version of a snapshot version of an artifact. By simple I mean that the URL doesn't change, or require the user to browse the directory and examine timestamps.
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By definition, snapshots are mutable, releases are immutable. This is why Nexus makes you store them separately because usually you don't care if you lose snapshots, but you will care if you lose releases. It makes snapshot cleanup much easier to deal with that way.
Snapshot artifacts are artifacts generated during the development of a software project. A Snapshot artifact has both a version number such as “1.3.
Please note
- this answer relates to Nexus 2.X
- There is a noticeable performance impact of using the restlet API to download large artifacts, see: https://community.sonatype.com/t/slow-artefacts-download-performance-with-oss-2-x/2280
The core Nexus "redirect" REST API can be used to retrieve any version of an artifact from a nominated repository:
For example:
https://repository.sonatype.org/service/local/artifact/maven/redirect?r=central-proxy&g=log4j&a=log4j&v=LATEST
The v parameter can be a value like 1.0-SNAPSHOT, in which case Maven will return the latest time-stamped snapshot held in the repository. Similiarily the special value "LATEST" should do the same provided a more recent released version is not present.
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