Consider action for computing build name

[jzheaux]

A common need when working with artifactory is consistently determining the build name. Numerous projects use ${{ github.event.repository.name }}-${{MAJOR}}.${{MINOR}}.x. It may be nice to create an action that does this.

[artembilan]

This is how it looks so far in my case for Gradle:

    - name: Evaluate Build Name
      id: build-name
      shell: bash
      run: |
        echo Evaluate Build Name

        branchVersion=${{ github.ref_name }}

        if [ $branchVersion = 'main' ]; then
            snapshotVersion=$(cat gradle.properties | sed -n '/^version=/ { s/^version=//;p }')
            branchVersion=${snapshotVersion%.*}.x
        fi

        buildName=${{ github.event.repository.name }}-$branchVersion${{ inputs.releaseVersion != '' && '-release' || '' }}
        buildNumber=${{ github.run_number }}
        
        echo buildName=$buildName >> $GITHUB_OUTPUT
        echo buildNumber=$buildNumber >> $GITHUB_OUTPUT
        
        echo "::notice title=Artifactory Build Name & Number::$buildName/$buildNumber"

Note about that -release suffix we have agreed upon between teams some time ago when we started to migrate to GHA.