Visit my.sonatype.com for documentation on Nexus Repository version 2.
With REST API
Nexus Repository 2 provides a separate REST API to retrieve files when interpreting the maven-metadata.xml is required. The syntax looks like this:
wget "http://repository.sonatype.org/service/local/artifact/maven/content?r=snapshots&g=org.sonatype.nexus&a=nexus-utils&v=LATEST" --content-disposition
Where:
- r = the id of the repository or group to search (Required)
- g = the groupId of the file (Required)
- a = the artifactId of the file (Required)
- v = the version of the file, this may be "LATEST", "RELEASE", a version number like "2.0", or a snapshot version number like "2.0-SNAPSHOT". (Required)
- c = the classifier of the file (Optional)
- e = the type or extension of the file (Optional)
- p = packaging (Nexus Repository 2 will resolve known packaging types to the correct extension). (Optional)
If the version is not a concrete version, then Nexus Repository 2 will look in the maven-metadata.xml in the same way Maven does to resolve the version. The filename will be set in the content-disposition header field, so if you are using wget, be sure to use the --content-disposition flag so the filename is correct.
There is an alternate form of the API that uses redirects to work around the content-disposition setting. This form is shown below:
wget "http://repository.sonatype.org/service/local/artifact/maven/redirect?
r=snapshots&g=org.sonatype.nexus&a=nexus-utils&v=LATEST"Alternative - Use Maven
Alternatively, you can use Maven to retrieve a snapshot version. First download it to your local maven repository using the "dependency:get" goal":
mvn dependency:get -DremoteRepositories=http://localhost:8081/repository/maven-public -DgroupId=org.foo -DartifactId=project -Dversion=1.0.0-SNAPSHOT -Dtransitive=false
Then use the "dependency:copy" goal to move the snapshot from your local repository to wherever you like:
mvn dependency:copy -Dartifact=org.foo:project:1.0.0-SNAPSHOT -DoutputDirectory=/some/output/path