Add tasks to publish zips for Notifications and Notifications Core plugins

[qreshi]

Signed-off-by: Mohammad Qureshi 47198598+qreshi@users.noreply.github.com

Description

Publish Notifications and Notifications Core zips to maven repo.

Issues Resolved

#474

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[qreshi]

I tested locally and running ./gradlew publishPluginZipPublicationToZipStagingRepository at the top-level project will produce the plugin zip contents for both plugins in the local-staging-repo directory.

Since we have two backend plugins here, we'll need to make the following changes to the scripts in https://github.com/opensearch-project/opensearch-build:

For notifications-core build script:

./gradlew publishPluginZipPublicationToZipStagingRepository -Dopensearch.version=$VERSION -Dbuild.snapshot=$SNAPSHOT -Dbuild.version_qualifier=$QUALIFIER
mkdir -p $OUTPUT/maven/org/opensearch/plugin
cp -r ./build/local-staging-repo/org/opensearch/plugin/opensearch-notifications-core $OUTPUT/maven/org/opensearch/plugin/

For notifications build script:

./gradlew publishPluginZipPublicationToZipStagingRepository -Dopensearch.version=$VERSION -Dbuild.snapshot=$SNAPSHOT -Dbuild.version_qualifier=$QUALIFIER
mkdir -p $OUTPUT/maven/org/opensearch/plugin
cp -r ./build/local-staging-repo/org/opensearch/plugin/notifications $OUTPUT/maven/org/opensearch/plugin/

@peterzhuamazon @prudhvigodithi Can you advise that the changes above to the build scripts are in fact what you expect?

[prudhvigodithi]

Hey @qreshi yes those 3 lines looks good, also just FYI, here are some PR's to refer
https://github.com/opensearch-project/alerting/pull/455/files#diff-3d64996115d0ac3b74e36f57ce6b00d6b4982614c41b1ed39eab8ef43b2e9a2b
https://github.com/opensearch-project/opensearch-build/blob/main/scripts/default/opensearch/build.sh#L81-L84
Thank you

[prudhvigodithi]

Hey @qreshi thanks for the PR, please make sure you add publishPluginZipPublicationToZipStagingRepository to the build scripts for the zip to be shipped to maven.
Thank you