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Open SRP Server has multiple maven published jar libraries which should be included in a project's build.

These libraries are:

  • opensrp-server-common

Uploading to Maven

All the above projects have the same structure as far as configuration.

To upload files to maven,

  • Update the pom.xml file in the root of the project to change the <version> tag. If building for a snapshot, include the word 'SNAPSHOT' in the version name. If building for release DO NOT include the suffix. Thus for a Non-snapshot release, it would read VERSION_NAME=1.0.0

         fig.1: example for opensrp server common

  • Create a global maven settings.xml file (if it doesn't exist) in ${user.home}/.m2/ folder
  • Update the settings file with your nexus server credentials. 

         

     fig.2: example of settings.xml file global setting

  • To publish to Maven Local, run the command 

               mvn clean package

               mvn install:install-file -Dfile= target/opensrp-server-common-1.0.0-SNAPSHOT.jar -DpomFile=pom.xml

  •  To publish to Maven Central run the command
        mvn clean deploy

Viewing artifacts Maven

To see if the upload was successful you can visit: https://oss.sonatype.org/content/groups/public/org/smartregister/

Using/Including the artifacts in a project

In the projects, pom.xml file, include the sonatype repository if you want to add a snapshot dependency. For release dependency, the central maven repository is added by default.

Then add the dependency

Uploading the Release Artifacts to Maven

For Release versions(after the Snapshot is stable and complete), the files must be signed before publishing to maven. This requires access to the signing the artifacts using GPG.

  • Install gpg https://gnupg.org/
  • Create gpg key
  • List the keys and extract the public hash. gpg —list-key
  • Upload the key to server  gpg --keyserver hkp://keyserver.ubuntu.com --send-keys public_hash
  • Update the pom.xml file in the root of the project to change the <version> tag. DO NOT include the suffix 'SNAPSHOT' in the version name.

To stage a release run the following command:

     mvn clean deploy -P release

After the release is uploaded to firstly goes to the staging environment on Nexus. To flag the deployment for release so that it's pushed to and is available on Maven Central, you need to login in the nexus interface(Repository Manager) using your sonatypeUsername and sonatypePassword and activate the release from there. Click here for the repository manager link.

Instructions on how to do this can be found here

Versioning Artifacts

Once you have created and tested and artifact on MavenLocal and it works correctly, Its time to upload it to the repo. Step one would be to check the existing latest version for that artifact.

Snapshot Versions

All artifacts for opensrp can be found under https://oss.sonatype.org/content/groups/public/org/smartregister/

e.g for the commonmodule

https://oss.sonatype.org/content/repositories/snapshots/org/smartregister/opensrp-server-common/

Using the MAJOR.MINOR.BUILD system for versioning, when you update the gradle.properties you increment the BUILD  value by one. e.g. if the last snapshot for Growth Monitoring was 1.0.1-SNAPSHOT/ you set the VERSION_NAME value to 1.0.2-SNAPSHOT

Release Versions

Once a release version is ready, the MAJOR.MINOR.BUILD  value for the very first one starts at 1.0.0. If an update to the release is made the BUILD  value is also incremented by one. If a new release is created from a new snapshot (whose versioning will start at 1.1.0 after the release) the next Release Version willl start at 1.1.0.

Major changes in the products will warrant an increment of the MAJOR value which will then increment by one, thus versioning starting at  2.0.0 and following the same format as above for future updates.

Development Hacks

Refreshing dependencies

When refreshing dependencies as you add code changes to the various modules in the org.smartregister package, you need to clear the local maven cache with the following in order the latest changes to reflect... so run

rm -rf ~/.m2/repository/org/smartregister/


Development efficiency

During development it might be inefficient to publish minor updates to the library even on maven local just to test your new changes or during debugging. Thus when developing it is recommended to include the library dependency by using the compile project syntax. e.g when developing the opensrp-client-growth-monitoring library include the library in the sample project using this syntax in sample's build.gradle

compile project(":opensrp-growth-monitoring")

Tagging Releases

It is recommended to tag releases and snapshots once you push to maven.

use the syntax , replacing v1.0.0 with the correct version of Snapshot or Release published 

git tag -a v1.0.0 -m "Release Version 1.0.0" && git push origin v1.0.0

Closing and Promoting Releases

For Release versions, once you have uploaded the release artifacts using uploadArchives gradle task, you are now ready to push the artifact to the main Maven Repository. This can be done in two ways:

  1. Using the procedure in the above section Uploading the Release Artifacts to Maven
  2. By using the gradle task closeAndReleaseRepository right after running uploadArchives

NB: closeAndReleaseRepository task expects only one artifact of the group to be staged as ready for release. If more than one exist, log into nexus and delete one. 

You can also combine the uploadArchives and closeAndReleaseRepository task in one line as shown below

./gradlew :<module name>:clean :<module name>:uploadArchives closeAndReleaseRepository -PmavenLocal=false

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