Nexus Maven repository migration

I need to migrate a Nexus 2.14 Maven repository to Nexus 3.10.

Unfortunately the Nexus product doesn't care much about migrations... probably they believe that, once installed, their product is immovable, like a sick elephant.

With a Nexus 2.14 to Nexus 2.14 migration, the repository structure is so simple that you can do it with a rsync.
But Nexus 3.10 is a totally different beast.

Luckily there are people who wrote tools:


https://github.com/simpligility/maven-repository-tools



I have to migrate from http://localhost:8081/nexus/content/repositories/releases/ (Nexus 2.14) to http://localhost:8181/repository/releases/ (Nexus 3.10)

git clone https://github.com/simpligility/maven-repository-tools.git
cd maven-repository-tools
mvn package
java -jar maven-repository-provisioner/target/maven-repository-provisioner-1.3.2-SNAPSHOT-jar-with-dependencies.jar

java -jar maven-repository-provisioner/target/maven-repository-provisioner-1.3.2-SNAPSHOT-jar-with-dependencies.jar -s http://localhost:8081/nexus/content/repositories/releases/ -t http://localhost:8181/repository/releases/ -u admin -p admin123 -a org.pierre:pvjoinfacestest:war:1.0


tragically, the tool doesn't allow wildcards.... so you must know in advance the gav of ALL the artifacts you have to migrate.... my impression is also that the .war is not really uploaded!


I am trying this one https://github.com/DarthHater/nexus-repository-import-scripts

copy https://github.com/DarthHater/nexus-repository-import-scripts/blob/master/mavenimport.sh to my /home/centos/nexus214/sonatype-work/nexus/storage/releases folder, then run

./mavenimport.sh -r http://localhost:8181/repository/releases/ -u admin -p admin123

and it works!