publish-root.gradle

// Create variables with empty default values
ext["signing.keyId"] = ''
ext["signing.password"] = ''
ext["signing.key"] = ''
ext["ossrhUsername"] = ''
ext["ossrhPassword"] = ''
ext["sonatypeStagingProfileId"] = ''

if (SIGNING_KEY_ID != null) {
    // Use global gradle variables
    ext["ossrhUsername"] = OSSRH_USERNAME
    ext["ossrhPassword"] = OSSRH_PASSWORD
    ext["sonatypeStagingProfileId"] = SONATYPE_STAGING_PROFILE_ID
    ext["signing.keyId"] = SIGNING_KEY_ID
    ext["signing.password"] = SIGNING_PASSWORD
    ext["signing.key"] = SIGNING_KEY
    ext["snapshot"] = LINK_PREVIEW_SNAPSHOT
} else {
	// Use system environment variables
    ext["ossrhUsername"] = System.getenv('OSSRH_USERNAME')
    ext["ossrhPassword"] = System.getenv('OSSRH_PASSWORD')
    ext["sonatypeStagingProfileId"] = System.getenv('SONATYPE_STAGING_PROFILE_ID')
    ext["signing.keyId"] = System.getenv('SIGNING_KEY_ID')
    ext["signing.password"] = System.getenv('SIGNING_PASSWORD')
    ext["signing.key"] = System.getenv('SIGNING_KEY')
    ext["snapshot"] = System.getenv('LINK_PREVIEW_SNAPSHOT')
}

if (snapshot) {
	ext["rootVersionName"] = LINK_PREVIEW_SNAPSHOT_VERSION_NAME
} else {
   ext["rootVersionName"] = LINK_PREVIEW_VERSION_NAME
}

// Set up Sonatype repository
nexusPublishing {
    repositories {
        sonatype {
            stagingProfileId = sonatypeStagingProfileId
            username = ossrhUsername
            password = ossrhPassword
            version = rootVersionName

            nexusUrl.set(uri("https://s01.oss.sonatype.org/service/local/"))
            snapshotRepositoryUrl.set(uri("https://s01.oss.sonatype.org/content/repositories/snapshots/"))
        }
    }
}