I have a Maven project. One of the repositories is no longer available online.
My local environment has what it needs to build the project offline with -o.
What's a good way to capture only the files this project needs, to provide a copy of the artifacts to others to develop the project in the same offline manner?
I'd like to avoid providing my entire .m2 directory for efficiency.
It would be great if there was a way to save all of the build artifacts for a particular Maven project from a bloated working .m2 to a clean .m2, including only what's necessary to the project, to easily share with others.
Thanks!
Related
I need to configure maven to download the dependencies to a directory within my project so that I can copy my project to another PC without internet access. I have found the -o option and the "dependency: copy-dependencies" plugin, but nobody explains how to consume those dependencies later. What would be the way to download the dependencies and then consume it on a PC without an Internet connection?
Maven caches downloaded dependencies (and plugins -- just having the project's dependencies won't necessarily be enough depending on the pom structure) in ~/.m2/repository. If you build your project, then clone the ~/.m2/repository directory as well as your project to another machine, you should be able to build in offline mode with all dependencies available to use.
The dependency:copy-dependencies is pretty useless for the task you try to solve. You usually need much more to successfully build a project.
You can use a dedicated local repository for you project (this can be set on the command line), so that you can copy that (without the content coming from all the other projects).
But if you are in a company, the recommended way is to set up a Nexus/Artifactory server that manages your dependencies. Then you don't need internet access to build, but just access to that server.
I would like to know the difference between generating artifacts from and cache and updates.
Does generating artifacts get from remote repository if it is not available in local repository?
I did not find any relevant posts regarding the same.
I do not know if I understand correctly your question, tell me if I have to delete the answer.
In Maven, there are the remote repositories and the local repository (under .m2 folder the local one).
In the moment you build a project, the dependencies to build that project are downloaded from the remote repositories and saved into the local repository. So the next time you build a project with that dependency there should be no need to download because there is in your local repository.
There are people who say that the cache and the local repository are the same. But for example, if you use Eclipse and if you go into .m2 folder, you can see a .cache folder. There should be a m2e folder. Here Eclipse save indexes to manage the dependencies.
I'm in the latter stages of setting up a CI environment for my project. I'm using Maven, Jenkins and Artifactory Pro and can successfully build my project and deploy it's artifacts to Artifactory. I have also written a bash script to retrieve the resulting artifacts of a specific build from Artifactory and copy them somewhere.
The main part I'm missing right now is automated versioning. I've looked at enabling Artifactory release management, which is really cool, but involves the rebuilding of the project. I'm really trying to follow the mantra of 'Build Once, Deploy Anywhere', so any rebuilding is a no-no.
My question boils down to: Is there an automated way (either with one of the aforementioned tools, or a plugin) to handle versioning, without rebuilding an artifact?
Artifactory Pro allows you to easily extend Artifactory's behavior with your own plugins written in groovy. (https://www.jfrog.com/confluence/display/RTF/User+Plugins)
You can find here, an example of Promote extension, that will change your artifacts versions without the needs of new build.
You can find more usefully examples in the GitHub "artifactory-user-plugins" repository.
My company has a policy that software deployed into production has be be built on a specific machine that has no access to the internet.
We're currently using Maven. When running build on development machines, maven automatically download the dependencies from central Maven repository without problem. Then before go production, we put all files in local Maven repository (.m2/repository) into source control, and then run offline build with
mvn -o -Dmaven.local.repo=<local repo dir> package
this method works, but managing thousands of files in source control is a real pain, particularly the dependencies for Maven plugins. Thus my question, how can I improve the workflow so as to make it easier to maintain the dependencies in the source control?
I'm considering switching to Gradle, mainly because it's more flexible and doesn't depend on plugin downloaded from repository. but then I found out the Gradle local cache directory is not transportable between computers, which means I cannot check it into source control.
Suggestions and recommendations are all appreciated.
Use internal repository manager like Nexus or Artifactory. Always put released artefact to production.
But building project on production machine is not good idea. Better use complete artefact like EAR or WAR with all dependencies included, or something like jar-with-dependencies or other assembled distros. Build project on your CI server and deploy complete package with one click to production server.
I want to create a maven project, which has to depend on a non maven project which in turn depends on 2 other non maven projects. I do not have ownership of any of the other projects and it would not be possible for me to change anything in those projects let alone the structure to conform to the maven structure.
I asked if I could just get jars -- but was told that because of multiple levels of dependency, it would be "difficult" -- although I haven't understood why.
Is this possible or should I just abandon the use of maven to create my project and go with a regular project with jars in the lib folder?
Inxsible
If you can go with a regular project build that means you must have access to the other project's jar files?
It doesn't really matter how the other project builds them, you can still gain more control over your own build process by loading the jars you depend on into a Maven repository.
I'd suggest using one of the following repository managers:
Nexus
Artifactory
Archiva
They'll give you management screens to uploading 3rd party jars, they'll also a more efficient way to use other Maven repositories like Maven Central.
Once you've got your Maven build process working, you could encourage the other projects to automatically publish their versions into your Maven repo.
They could use the ANT tasks provided by the Maven or Apache ivy projects. Worst case you just continue to load their libraries until they see the light :-)