@sap/cds-dk/lib/init/template/helm-unified-runtime/index.js

Command line client and development toolkit for the SAP Cloud Application Programming Model

const cds = require('../../..')
const { rimraf, exists, readFileSync, yaml } = cds.utils
const { join } = require('path')

const { readProject } = require('../../projectReader')
const { merge } = require('../../merge')

module.exports = class HelmUnifiedRuntimeTemplate extends require('../helm') {

  static help() {
    return 'Kyma deployment using Unified Runtime Helm charts'
  }

  options() {
    return {
      'internal-unified-runtime-charts': {
        type: 'boolean'
      }
    }
  }

  async canRun() {
    const hasInProduction = HelmUnifiedRuntimeTemplate.hasInProduction()
    if (cds.cli.options.force) {
      await rimraf(join('chart'))
      return true
    } else if (exists(join(cds.root, 'chart')) && !hasInProduction) {
      throw `Chart already exists. Use --force to overwrite.`
    }
    return true
  }

  static hasInProduction() {
    if (cds.cli.options?.add?.has('helm-unified-runtime')) return true

    if (exists(join(cds.root, 'chart', 'Chart.yaml'))) {
      const chartFile = readFileSync(join(cds.root, 'chart', 'Chart.yaml'), 'utf8')
      const chartYaml = yaml.parseDocument(chartFile).toJS()
      return chartYaml.annotations?.['app.kubernetes.io/managed-by'] === 'cds-dk/helm'
        && chartYaml.dependencies?.find(dep => dep.name === 'web-application')?.repository !== undefined
    }

    return false
  }

  async _mergeDependency(name, alias) {
    const project = readProject()
    await merge({
      dependencies: [{
          name,
          alias,
          version: '>0.0.0',
          repository: 'https://int.repositories.cloud.sap/artifactory/virtual-unified-runtime-helm-dmz'
      }]
    }).into('chart/Chart.yaml', {
      with: project,
      additions: [{
          in: 'dependencies',
          where: { alias }
      }]}
    )
  }
}