I have several Maven profiles, which should not all be available on all machines. So I don't want to put them into the super pom in the root directory.
However, as far as I can see there is no way to put Maven 3 build profiles into different files and include them during runtime using activation rules and command line parameters.
Or am I wrong?
In Maven 3 there is no possibility to put profiles into an external file. In earlier version (Maven 2.2.1 there exists a profiles.xml).
Related
I am developing an application for nitrogen. When I ran maven to generate an archetype, I got directories like features/features-X and features/odl-X with pom.xml in each one. Presumably, I am supposed to put feature dependencies in these pom.xml files. What is the difference between these two directories? Thanks
The features-X directory aggregates all the project's features in a feature repository. The odl-* directories are the project's single features. A feature repository is registered with karaf via the feature:repo-add command or the featuresRepositories property in etc/org.apache.karaf.features.cfg. It makes all the project's features available to karaf so they can be installed via feature:install.
I cannot activate more than one Maven profile from command line.
I have a maven based Spring Boot project. I have 3 maven profiles within it for excluding specific java resources and other resources.
I am able to activate only one profile at a time from command line.
mvn clean package -P exclude-demo-service,exclude-mock-service
When I pass more than one profile, only one of them works. In the above , only exclude-mock-service works but exclude-demo-service does not work.
I have shared the pom.xml used for my sample project at below,
https://github.com/bsridhar123/mavenbuildtoggledemo/blob/master/pom.xml
I basically want to apply multiple profiles when running maven build.
Can someone please help me in resolving this issue.
Is there a way we can load all the jar files inside a folder, as dependencies in a maven project.
So that, I do not have to mention each and every jar files in pom.xml, just mention or tell maven to pick all the jar files from folder 'x' and build the system.
Is this supported by maven?
I think this is supported by ant. Not sure whether gradle supports either.
In
https://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html#System_Dependencies
you see that you can reference single files, but there is no mechanism for directories. As I mentioned in the comment, using the disk is discouraged in general.
If you need the same set of dependencies in many projects, you can write a pom for that and use it (as parent or by setting a dependency to it).
Are there any plugins or ways to download the dependencies for a maven project from Jenkins? I am using Jenkins for a multi-module desktop application. Although I know I could just archive all dependencies, I don't see why there isn't the ability to download dependencies using maven which installed on the same machine as Jenkins. Preferably one would specify the location of a pom and then have the ability with one click to download all the dependencies for that pom. Can you do this? I do not need or want an entire binary repository for this feature.
Edit: I will try and rephrase this as I don't think people are understanding.
In Jenkins one has the ability to archive artifacts at the end of a build. Also in jenkins you have integration with maven. When building a jar in maven you have arguablly 2 options:
You can either use the assembly plugin which zips all .class files
together with those produced from your source code resulting in 1 jar
You can create a jar just source code which references all
dependency jars which are located in a separate folder.
In Jenkins one also has the ability to download the latest artifact. Now if I am using Option 2, I can either archieve just the jar which my sources produced, which I would say is more desirable for space and is the whole purpose of the archive functionality, or you can also archive the libraries too.
Here is the PROBLEM!! If I don't archive the libraries then I cannot easily run this jar, as it is a desktop application and its dependencies cannot be obtained in the same mannor as clicking on a link from jenkins. So lets say my question is what is the easiest way to obtain them? Extra info: assume jenkins is running as a server and you can't use artifactory or another server application, that seems to me to be massive over kill.
Use the maven plugin and create a maven job for your project. Jenkins will then use the maven command you provide in the job configuration to build the project. This means maven will download the projects dependencies and store them on the machine jenkins is running. Normally this would be <JENKINS_HOME>/.m2/repository. This way you get a local repository that only contains the dependencies of the projects you created maven jobs for.
Forgive me asking following questions. I am totally lost in regards to maven+eclipse. I checked out someone's java project (maven built) from SVN to my local eclipse (kepler). When I click Windows > Preferences, I see Maven.
question 1)
Is this a maven plugin? When developers say maven in eclipse, are they referring to maven plugin? maven and maven plugin are two separate components?
question 2)
when I click on user settings, C:\Users\myName.m2\settings.xml is missing. Exact error message is "User settings file doesn't exist". Does it get created when you install maven plugin at first time?
question 3)
I found three folders may have to do with maven C:\workspace\maven_local_repo_artifactory directory, C:\maven_local_repo and C:\Users\myName.m2\respository but not sure how they get created and what is the relationship among them.
question 4)
Is it ok to remove current maven plugin from eclipse and re-install it then check out the java project from SVN? I think my maven or maven plugin settings are not correct in my local box.
1) Is this a maven plugin? When developers say maven in eclipse, are
they referring to maven plugin? maven and maven plugin are two
separate components?
Yes. This is the maven-plugin. maven-plugin uses the configurations of maven (%M2_HOME%/conf).
If you wanna work with maven, you need to install it on your machine. Then you can run maven commmands. In addition, if you want to invoke maven commands within eclipse (conveniently) - you can install the eclipse-plugin. "maven-plugin" is a plugin for eclipse, that lets you use maven within Eclipse conveniently.
2) when I click on user settings, C:\Users\myName.m2\settings.xml is
missing. Exact error message is "User settings file doesn't exist".
Does it get created when you install maven plugin at first time?
By default, the maven-plugin assumes that your settings.xml (which is the configuration file of maven) is in the path you have mentioned. However, there are cases (like in my case) where the config file is not there, but under %M2_HOME%/conf. you can update it in Eclipse, and the error will disappear.
3) I found three folders may have to do with maven
C:\workspace\maven_local_repo_artifactory directory,
C:\maven_local_repo and C:\Users\myName.m2\respository but not sure
how they get created and what is the relationship among them.
C:\Users\myName.m2\respository is the "local repository". If you learned a bit about how maven works, it holds a local repo on the local machine, and it keeps there all artifacts. It downloads them from the "repository" - if you have one in your company (Nexus, Artifactory, etc) or from Maven Central. However, this path is configurable by Maven's settings. So there might be that someone played with it and changed the path, and these other directories were created. You did not mention what resides inside these paths...
4) Is it ok to remove current maven plugin from eclipse and re-install
it then check out the java project from SVN? I think my maven or maven
plugin settings are not correct in my local box.
Sure it is OK. You may remove the plugin, and the source plus maven itself will not be deleted from your machine.
HTH.