I have Maven2 project. This project have 1 internal dependency which stored in internal (for our company) Sonatype Nexus. I setup the dependency version in pom.xml as parameter which I provide via Jenkins.
Sometimes I do not have proper dependency version in Nexus so my build can fail on donwload dependency step. I want to add ability to trigger special task (script) if dependency is not found to upload this dependency into Nexus and continue the build.
Can I do so?
I think about fake build for version exists always in Nexus which will check if given version is in Nexus, upload it and launch real build. But such way looks terrible.
Thanks In Advance!
You do NOT need to upload anything. You just need to access Nexus via the public group and the download from the Central repository, that is part of that group will happen automatically.
Related
I am experimenting the use of Rational Asset Manager to store our binaries and/or build artifacts. I am running a mvn deploy command to deploy my build artifacts to RAM. Although it recognizes the connection its throwing me a Http status code: 500 error.
I have also checked RAM logs for more information but i don't see any specific exception. All the examples or documents out on internet says we have to configure RTC build engine to run the builds.
I just want to know if anyone have tried publishing to RAM from command line using Mvn deploy ( without using RTC client ) ? is this do-able?
If you have successfully published artifacts to RAM using maven, can you please elaborate on how you did it?
It seems to be possible, if you follow the steps described in:
"Creating and using Maven assets", and
"Deploying from Maven to assets":
Before you can use Maven assets, a repository administrator must enable the Maven model library. For more information, see Enabling the Maven library.
The mvn client can integrate with Rational Asset Manager, using Rational Asset Manager as a Maven repository.
Before you deploy from Maven to Rational Asset Manager, you must add a repository entry to the pom.xml file on the computer where you plan to run the mvn client. See Creating and using Maven assets for more information.
I was able to deploy the artifact using mvn deploy after changing the following things in RAM
Pointed to a JRE version in RAM ( originally was pointing to JDK
version) and
Changed permissions for my role for saving my artifacts
in RAM ("save Work Item") Reference
I am setting up an ant build system on a project with dependency resolution being managed by ivy. I have it up and running with the file system being used for the local and shared repository currently. My ultimate goal would be that when developers are fixing bugs or creating new functionality, they would only be able to put artifacts into their local repository. When they belive their code is ready to be used by the rest of the team, it would be promoted to the proper branch in SVN and the group in charge of doing official builds would compile and publish the new artifacts.
So I guess my questions are how can you control who can publish to a repository? Does ivy just rely on filesystem permissions?
Also, I would eventually like to make my shared repository available via http. I think I could point apache to the file system repository directories for retrieving artifacts, but how do you setup publishing to an http repository?
I would suggest that you setup a repository manager to manage your project's build artifacts.
The best choices are one of the following:
nexus
artifactory
archiva
Publishing to a Maven repository means that your artifacts can be consumed by projects using other build technologies. All modern build systems support Maven (Including ivy, see the ibiblio resolver).
You could specify three resolvers in your ivy settings file. First would be a chain resolver which include remote and local ivy repositories. Second would be a local resolver for local ivy repository. Third a resolver to remote ivy repository only.
Every developer retrieves artifacts using first chain resolver.
Usual developer publish artifacts using second local resolver.
Your special team could use third remote resolver to publish in remoter ivy repository.
To protect remote repository from usual developers place it on (S)FTP server with write protection by password.
The only problem in this case is how to set versions on artifacts so that artifacts published in remote repository in some cases override locally published in some not.
Our team used such scheme few years ago. But now we use only local ivy repositories and CI server to build and run tests from various branches. We came up to this after switching to git.
for existing ivy repo easy to setup this: rest-ivy
I get what internal libraries are. But what is the purpose of a snapshot repository in archiva?
Libraries - private releases
Snapshots - private builds?
I have archiva set up and working with LDAP, but I am wondering why I need a snapshot repository. What purpose does this solve? Why is this used in development?
Also, lets say I update a library in the internal repo. Does this automatically update in the project POM files which use Maven, or I must update those poms to use the new JAR version?
Usually before releasing a maven project, the version is -SNAPSHOT.
So with such repositories you can share fresh SNAPHOT of your project for other people in your team to test or with a ci server.
Snapshots is maven idea to give version number as -SNAPSHOT , its under development it can be change any time.
Internal repository is the release repository with fixed version number. You can modify the SNAPSHOT, but That artifact never changes after it is released.
When we use internal, if dependency does not found inside it, then it will download it from central repository of maven. where as in snapshot it does not.
I think there should be some difference, but can anyone tell me the details?
mvn:install copies your packaged Maven module to your local repository (by default, in ~/.m2/repository), to be accessed by other local Maven builds.
mvn:deploy uploads your packaged Maven module to another (usually remote) repository, to be accessed by other, not necessarily local, Maven builds.
See the documentation for the build lifecycle for more info.
The install phase is responsible for the installation of artifacts into local caching repositories. This basically applies to the Maven repository, but a well-known example is also the OSGi Bundle Repository supported by maven-bundle-plugin.
The deploy phase is responsible for the installation of artifacts into published repositories. This usually applies to remote repositories, but is could perfectly be a local repository exposed to the outside world.
As all Maven phases, you can do with them anything you want. You can shuffle plugin phases as you see fit, but the above semantics is the conventional one and you should stick to it in order to be consistent with the default phases of other plugins' goals.
mvn:deploy performs deployment to remote reposiory/environment, mvn:install installs all compiled packages to a local repository making them available to other builds performed on the local machine.
In one sentence: mvn:install compiles and installs your component in your local Maven repository, so that you can use it when other components used and developed locally depend on it. mvn:deploy deploys your (previously installed) component to a remote repository.
While building Maven projects (Spring and jbpm 4.4 to be specific),
I see that the libraries that I already have in Maven local repository, gets downloaded again or the console log suggests so.
Say my local repo already have the commons-collection3.1 in my library, is it necessary to download from the maven repository?
Is there a setting that can let maven know to look in the local repo first?
Thanks,
Ayusman
You might have the updatePolicy for SNAPSHOT repository set to always in your settings.xml. See this guide to settings.xml.
Maven will look in the local repository first by default.
Downloading in Maven is triggered by a project declaring a dependency that is not present in the local repository.
http://maven.apache.org/guides/introduction/introduction-to-repositories.html