Maven release plugin auto increment version

Search everywhere only in this topic. Advanced Search. Classic List Threaded. Auto-increment semantic version number for CD pipeline with git and docker. There seem to be several blockers. How can I tell maven to increment the version and commit the edited pom without the CI platform seeing the commit and kicking off again in an infinite loop?

My second main issue that I wonder about is: a developer commit may pass all its tests and reach the maven deploy phase, at which point the automated CI job wants to commit the updated pom with the incremented version - but it might come after a second developer commits.

This also points to branching and then merging. Have I missed something when searching the net for the last couple of hours? Karl Heinz Marbaise Re: Auto-increment semantic version number for CD pipeline with git and docker.

maven release plugin auto increment version

Can you mention some of those sources? Maybe I misunderstand a thing here but what about the usual maven-release-plugin? This can be run on a CI server also on command line directly for a developer if it's needed But I would recommend to do that only on CI BTW: Can you explain the part with the infinite loop?

I don't get that point? To make things clear here. The CI could do a release procedure on it's own But I would recommend to use the maven-release-plugin at the first place If you really like you can do it on your own. The question is if you really use different branches If you think about this you have only a single version available The question is what exactly is your problem?

I can suggest you a simple model. Kind regards Karl Heinz Marbaise To unsubscribe, e-mail: [hidden email] For additional commands, e-mail: [hidden email]. In reply to this post by ahardy If you just use the maven-release-plugin, as you should, on something like Gitlab CI, for example, then indeed you'll get an infinite loop. I've been burned by this several times.

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Some of these CI systems have a way to specify skipping CI on a given checkin. The commits that the maven-release-plugin will have this string in their commit message, and that will break the infinite loop. Arnaud bourree Hi, I like your blog post, but I need some clarification. On line 19, your pipeline snippet calls maven without goals! I order to take decision after some automatic tests validation.One of the features of a continuous delivery pipeline is that each commit to source control is a potential production deployment.

The first step in the pipeline is typically a software build that is triggered upon commit to source control e. These packages are considered to be release candidates which the pipeline then carries through a series of validating steps that attempt to reject the packages as being suitable for deployment to production. Although we could trigger the maven release plugin to auto increment a projects version during the build, the plugin then needs to commit the version changes in the pom files back to source control, which will then trigger the build again, resulting in a infinite loop of builds.

An alternative approach, is to use a property placeholder in the projects parent pom version field which would be used to inject a build number from a CI server in my case Jenkins. This approach can be used to produce an incrementing release version for every commit to the repository without the need to modify the pom and commit this back into source control. For builds that occur outside of Jenkins e.

Some readers may recognise that maven explicitly warns against using properties in a poms version field and indeed when a maven build is run the following warnings appear:. It does surprise me that a tool as widely used as maven still makes integration with a continuous delivery pipeline so difficult. A number of years ago MNG was resolved which went a little way towards making this easier.

This issue loosened this restriction by not warning against the use of a few specific properties in the version field. So I choose to simply ignore this warning and anyway, if I really wanted to, I could have just shoe-horned the build number into the revision property to prevent the warnings. This occurs when a project is multi moduled with child modules that reference the parent pom using a property placeholder in the version.

However, if we wanted to build the app-spec-tests module only e. Notice how when maven is trying to resolve the parent pom of the com.

The parent pom never gets installed rightly so under this path and thus the dependency resolution fails. This will also occur when building an external maven project that depends on any of these modules too. Fortunately, there is a maven plugin that can resolve this issue. The Maven Flatten Plugin can be used to generate an alternative version of your projects pom file that maven will then use to install and deploy.

Some of the features of this generated pom include merging in the parent pom information and then removing the parent pom reference and resolving all property placeholders before installing the pom filethus addressing the issue described above. This plugin does solve the problem, but can introduce another issue you need to look out for and one that became a bit of a time sink to debug. There is plugin configuration to control the output directory of the generated pom though, so I was tempted to change this to be inside the target directory.

This should with a huge warning though!! Upon making this change I noticed that my integration tests were no longer executed during a maven build. After much debugging and reading through the flatten plugins source code, I discovered the cause of this issue.

The flatten plugin uses this method to change the path to the projects pom file in the flatten plugins case it gets changed to the path of the flattened pom file. What made this extra hard to track down was the fact that the basedir was only changed after the flatten plugin had executed, so any plugins run before the flatten plugin had the correct basedir, while any plugins run afterwards got the updated i. The plugin makes use of a new api method in maven 3. Another reason for writing this plugin was that I was not completely comfortable with all the changes that the flatten plugin was making to my installed pom.

All I really required to address the issue was to ensure that my projects pom files get installed with all property placeholders in the parent version string resolved. So the only change this plugin makes to the installed pom is to resolve any property placeholders in the parent version string. An example of the plugins usage see the Resolve Parent Version Plugin for more details :.This performs the normal version updates of the release:prepare goal without making other modifications to the SCM such as tagging.

Default value is : true. User property is : addSchema. User property is : arguments. If set to false, the user will be prompted for the version of each submodules. Default value is : false. User property is : autoVersionSubmodules.

User property is : developmentVersion. Default value is : invoker. User property is : mavenExecutorId. As of version 3. User property is : pomFileName. Default value is : default.

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User property is : projectVersionPolicyId. User property is : releaseStrategyId.

Configure the job to enable releasing

User property is : updateDependencies. User property is : useEditMode. Whether to automatically assign submodules the parent version. The file name of the POM to execute any goals against. Whether to add a schema to the POM if it was previously missing on release. Additional arguments to pass to the Maven executions, separated by spaces.

Default version to use for new local working copy. The command-line local repository directory in use for this build if specified. Role hint of the MavenExecutor implementation to use. The role-hint for the VersionPolicy implementation used to calculate the project versions.

The role-hint for the Strategy implementation used to specify the phases per goal.

maven release plugin auto increment version

Whether to update dependencies version to the next development version.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I'm using the maven release plugin on hudson with autoVersionSubmodules set to true to automatically increment the development version in the poms. I'm wondering if there is a way to make the plugin increment the major version rather than minor version.

Currently when I'm at version 1. The maven release plugin prompts you for the values of the release version to tag and also for the next development version. However, if you are not getting prompted to select the version, then something is choosing for you. If you are using the M2 Release Plugin for Hudson then I think it has options to select the version for you, but you should probably find a way to configure them explicitly. More details about your particular setup would help. What you are describing here is that maven-release-plugin is incrementing your fix version and you want the minor version incremented.

Where version x. Learn more. Asked 9 years, 3 months ago. Active 3 years, 9 months ago. Viewed 9k times. Any idea on how to achieve this? Arya Arya 2 2 silver badges 7 7 bronze badges. Active Oldest Votes. Zac Thompson Zac Thompson Thanks Zac for your answer. I don't want it to prompt for the version but also I don't want to need to go and change the releaseVersion and developmentVersion every time.

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I just want to see if there is a way to automatically increase the version.Mist, das klappt leider noch nicht! Im Moment testen wir neue Funktionen und du hast uns mit deinem Klick geholfen.

maven release plugin auto increment version

Vielen Dank! Today I want to show you a simple way how you can increment the version inside the Maven pom. When you are using the Maven Release Plugin then it will automatically increment the version after a release and you can stop reading here. But when you are interested in an alternative approach for releasing software with Maven, then go further and read first this blog entrywhere I describe it in more detail.

Version Numbers for Continuous Delivery with Maven and Docker

For all those who want to automate also the version increment step, they should have a look on a secret feature of the Maven Build Helper Plugin. I tried some other approaches, but for me this is the simplest way to do that. What are your preferred ways to release your software with Maven?

I really appreciate this post. Thank goodness I found it on Bing. You have made my day! Thanks again! May von ert. Thank you very much! Your email address will not be published.

Save my name, email, and website in this browser for the next time I comment. Dennis Schulte. Cancel reply Your email address will not be published.Dealing with version numbers is an important challenge on the way to Continuous Delivery.

At the end, every build will produce an artifact which is potentially shippable. Finally, the maven-release-plugin is also causing troubles :. The example build produces a simple Spring Boot service as a fat Jar. Additionally, we wrap the fat Jar in a Docker image and deploy the image instead of the Jar.

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The complete sources can be found on Github. For details, see this post. To increase the human-readability, we prefix the Git commit hash with the commit timestamp. Hence, our version numbers will look like this:. Next, we can define a Maven property for our version number that contains the commit timestamp and hash.

An empty value is sufficient to calm IDEA. This is even more important, when you create a unique artifact with each commit as proposed in this article. We use the docker-maven-plugin of io. The important part is the tagging.

We create two tags. The latest-tag will simplify local testing. The complete pom. The artifact of your build is the docker image; not the JAR anymore. Moreover, we are now versioning the docker image, not the JAR. Instead, set it to a fixed value. This approach works out quite well for us in practice. You are free to tag the corresponding Git revision after deployment. You can do this either manually or integrate the tagging in your final deploy process.

As every build leads to a new artifact, we are facing a huge amount of artifacts in our repository. Hence, we have to clean up. Update The amount of artifacts are less imporant than their size.

If you wrap a fat jar into a docker image, each new artifact will take about 80 MB.

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But we can easily reduce the size to 1 MB! The maven-release-plugin aborts the build, if it finds snapshot dependencies. We are now lacking this check. However, I claim that this is no big deal in practice. There are versioning proposals that use the timestamp of the build instead of the commit hash. But I prefer the commit hash due to the following reasons:.

The covered approach makes sense for deployable projects. If you have in-house libraries I would recommend to stick to the traditional versioning pattern. Basically, not. The proposed approach can also be applied if your Maven build produces only a Jar.To be able to make a solid start with the maven-release-plugin, there are 2 things you should include in our pom:. Most of the SCMs are simply executed as an external command as the current user on your system.

If this username is not the same as the SCM username, you may need to set the following option:. This example shows how to set the repository location for all tags to be created in Subversion. Note that this is not needed if you use the standard SVN layout, where the root project is in trunkand there is a sibling tags directory. Since the Release Plugin performs a number of operations that change the project, it may be wise to do a dry run before a big release or on a new project.

To do this, commit all of your files as if you were about to run a full release and run:. This will ask all the same questions, run the same tests, and output a copy of how the POMs will look after transformation. You can check the output and review the POMs, then run:. This will remove all of the files created above, and the project will be ready to execute the proper release.

To use the default inputs for the versions and tag information and not prompt for any values, use Maven's --batch-mode setting:.

[LD] Maven in Eclipse #10 - Release Prepare - Let's Develop With

Sometimes it is desirable to deploy a pre-release to be approved before made publicly available. One option is to create release candidates versions using the release:perform goal, but the final deployed artifact will NOT be the exact one that has been approved as RCx.

A common solution is to use a staging repository, where a test-version is deployed with it's documentation for review. If all is fine, it is then copied to the public repository. Using this strategy, the artifact that has been tested IS the one that is deployed.

The release:stage goal uses this strategy. It replaces the release:perform goal and does the same tasks, but requires a stagingRepository parameter. It will automatically re-configure the deploy and site-deploy goals to use the staging strategy. After the release is complete, the release. You just need to use a distinct tag in SCM, or rename the one that has been created if the SCM provider supports renaming tags.

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Usage Prepare your project to use the maven-release-plugin To be able to make a solid start with the maven-release-plugin, there are 2 things you should include in our pom: the scm -section with a developerConnection the maven-release-plugin with a locked version The developerConnection contains the URL of the Source Control Management system pointing to the folder containing this pom.

Use a different username in the SCM server than the one in the operating system Most of the SCMs are simply executed as an external command as the current user on your system. Set where to tag the files in Subversion This example shows how to set the repository location for all tags to be created in Subversion.

Do a Dry Run Since the Release Plugin performs a number of operations that change the project, it may be wise to do a dry run before a big release or on a new project.


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