Sonatype: create a staging repository and pass it as a Github Action output.

create-repository.sh

#!/usr/bin/env bash

username=
password=
profileId=
description="Creating staging repository."

while [ "$1" != "" ]; do
    case $1 in
        -u | --username)
            shift
            username="$1"
            ;;
        -p | --password)
            shift
            password="$1"
            ;;
        -id | --profileId)
            shift
            profileId="$1"
            ;;
        -d | --description)
            shift
            description="$1"
            ;;
        *)
            echo "Unknown command $1"
            exit 1
            ;;
    esac
    shift
done

if test -z "$username" || test -z "$password" || test -z "$profileId"
then
      echo "Missing parameter(s) for sonatype 'username' | 'password' | 'profileId'."
      exit 1
fi

jsonOutput=$(
  curl -s --request POST -u "$username:$password" \
    --url https://oss.sonatype.org/service/local/staging/profiles/"$profileId"/start \
    --header 'Accept: application/json' \
    --header 'Content-Type: application/json' \
    --data '{ "data": {"description" : "'"$description"'"} }'
)

stagedRepositoryId=$(echo "$jsonOutput" | jq -r '.data.stagedRepositoryId')

if [ -z "$stagedRepositoryId" ]; then
  echo "Error while creating the staging repository."
  exit 1
else
  echo "::set-output name=repository-id::$stagedRepositoryId"
fi