How can I dynamically set a plan variable in a task in Bamboo?

[Andre van der Schyff]

I need to set a variable in my Bamboo plan based on a field in my POM. This variable will then by used by the next task. How can I achieve this?

The full scenario is: I have a plan that branches my project for release. Currently I use two variables to hold the branch name and the next development version number, which is set manually using Run Customised. However if I can read the version number from the pom.xml file, these values can be calculated. So ideally I would like to use a script to:

1. read the pom.xml file
2. extract the current version number
3. manipulate it to determine the branch name and next version, and
4. populate two variables to be used by the branching task.

I have looked at the plugin exchange and all that seems promising for this is the Groovy plugin, but this does not seem to work on 4.0 and even then I don't know how to set a plan variable from the script. I'd prefer not to write a custom task for this unless there is really no other way.

Any help would be greatly appreciated

[James Dumay · Accepted solution]

EDIT: Take a look at the Inject Bamboo variables from file Task in Atlassian Labs.

Hi Andre,

There is an improvement request open to implement a Task that can read keys and values from a properites file and turn them into Bamboo variables. Would this work? If so, please vote for it.

There isn't a good way of doing this short of writing your own Task for the moment.

Thanks

James