@sap/cds-dk/lib/init/template/postgres/index.js

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

const cds = require('../../../cds')
const { read } = cds.utils
const { readProject } = require('../../projectReader')
const { merge } = require('../../merge')
const mvn = require('../../mvn')
const { srv4, postgres, postgresDeployer } = require('../../registries/mta')

module.exports = class PostgresTemplate extends require('../../plugin') {

  static help() {
    return 'database support for PostgreSQL'
  }

  async canRun() {
    const { hasMta, hasHelm, hasHelmUnifiedRuntime } = readProject()
    if ((hasHelm || hasHelmUnifiedRuntime) && !hasMta) throw `'cds add postgres' is not available for Kyma yet`
    return true
  }

  static hasInProduction(env) {
    return env.requires?.db?.kind === 'postgres'
  }

  async run() {
    const project = readProject()
    const { configFile, isJava } = project
    project.shortcut = typeof (await read(configFile)).cds?.requires?.db !== 'object'
    await merge(__dirname, 'files/package.json.hbs').into('package.json', { project })
    if (isJava) await mvn.add('postgresql')
  }

  async combine() {
    const project = readProject()
    const { hasMta, srvPath } = project

    if (hasMta) {
      const srv = srv4(srvPath)
      await merge(__dirname, 'files/mta.yml.hbs').into('mta.yaml', {
        project,
        additions: [srv, postgres, postgresDeployer],
        relationships: [{
            insert: [postgres, 'name'],
            into: [srv, 'requires', 'name']
        }, {
          insert: [postgres, 'name'],
          into: [postgresDeployer, 'requires', 'name']
        }]
      })
    }
  }
}