@sap/cds-dk/bin/deploy/index.js

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

const { options, flags, shortcuts } = require('../../lib/deploy/index.js');

module.exports = Object.assign(deploy, {
  options,
  flags,
  shortcuts,
  help: `
# SYNOPSIS

    *cds deploy* [ <model> ] [ <options> ]

    Deploys the given model to a database. If no model is given it looks up
    according configuration from _package.json_ or _.cdsrc.json_ in key
    _cds.requires.db_.  Same for the database.

    Supported databases: sqlite, hana


# OPTIONS

    *-2* | *--to* <database> [ : <database specific parameter> ],

      Where <database> is 'sqlite' or 'hana', <database specific parameter>
      can be a path to the database file (sqlite) or the service name (hana).

    *-4* | *--for* <profile>  (only in combination with *--to hana*)

      Specify the profile to be used to call 'cds bind' after successful deployment.
      Refer to the help of 'cds bind' for further information.
      The profile *hybrid* is used by default.

    *--profile* <profile,...>

      Loads the configuration data for the specified profile(s). 'cds build' is executed based on these profile settings,
      additionally binding information is resolved based on these profile settings. If a corresponding binding exists its service
      name and service key will be used. The *development* profile is used by default.

    *--dry*

      Just print the SQL statements without executing them.

    *--no-build*  (only in combination with *--to hana*)

      Skip running *cds build*.

    *--out* | *-o* <file>

      Write the DDL statements to the given file.
      Not available in combination with '--to hana'.

    *--on* | *-n* cf|k8s

      The target platform.
      Defaults to *k8s* when Helm charts are present and no *mta.yaml* exists, otherwise *cf*.

    *--with-mocks*

      Also create tables for all entities from imported models.

    *--no-save*

      Deprecated. The package.json file is no longer modified.

    *--auto-undeploy*

      Tell HDI deployer to automatically undeploy deleted resources.

    *--tunnel-address*

      Deploy through the given address (host:port) rather than the original
      database address.  The tunnel must have been opened before, e.g. using 'cf ssh'.

    *--vcap-file*

      Use credentials from the given file when deploying to *SAP HANA*, instead of
      creating new credentials. File must be in *cf env* format, with a root
      node *VCAP_SERVICES*. The following hdi related entries are supported:
      TARGET_CONTAINER, VCAP_SERVICES and SERVICE_REPLACEMENTS.

    *--model-only*

      Schema evolution: only update the information about the prior cds model.
      In combination with *--dry* it writes the CSN to stdout, so you can store it to a file.
      Use that to migrate existing databases to auto schema evolution.

    *--delta-from* <filename>

      Schema evolution: read the information about the prior cds model from the given file,
      which has been created by *cds deploy --model-only --dry*. When used with *--dry* it writes
      the generated SQL to stdout.

    *--script*

      Schema evolution: together with *--delta-from* generate a script of SQL
      statements to then check and execute manually or for usage with tools such as LiquiBase.
      This script might contain potentially lossy statements!


# EXAMPLES
    cds deploy --to sqlite:db
    cds deploy --to hana
    cds deploy --to hana:myService --auto-undeploy
    cds deploy --to hana --no-build

`})

async function deploy(_model, options) {

  if (process.stdout.isTTY && options['no-save']) {
    console.warn('Option --no-save is deprecated. By default, package.json will no longer be modified.')
  }

  if (_model && _model.length === 0) _model = undefined // empty array (no model args) means default models

  // ensure that cds build plugins defined as devDependencies are loaded
  if (process.env.NODE_ENV === 'production') delete process.env.NODE_ENV

  const cds = require('../../lib/cds')

  // IMPORTANT: call plugins before subsequent access to cds.env
  await cds.plugins

  const { 'to': url } = options
  if (!options.mocked && options['with-mocks']) options.mocked =  true
  if (!url && !cds.env.requires.db) throw new Error(
    `Please specify a database kind or url, e.g.:

    cds deploy --to sql
    cds deploy --to sqlite
    cds deploy --to sqlite:db/my-db.sqlite
    `)

  const conf = cds.env.requires.db || {}
  const [, _kind, _db] = /(\w+)?(?::(.*))?/.exec(url || '')
  const kind = _kind || conf.dialect || conf.kind

  try {
    var deployer = require('./to-' + kind)
  } catch (e) {
    if (e.code === 'MODULE_NOT_FOUND') {
      throw new Error(`Didn't find a deployer module for '${kind}'`) // eslint-disable-line preserve-caught-error
    }
  }
  try {
    options.messages = []
    if (options.script) options.dry = true // to ensure that we don't accidentally execute any SQLs
    if (options.out) {
      options.schema_log = []
    }

    await deployer.deploy(_model, _db, options)
    const log = this.log || _log
    if (options.messages.length) log (options.messages, options)

    if (options.out && options.schema_log?.length) {
      await cds.utils.write (options.out, options.schema_log.join('\n'))
    }
  } catch (e) {
    if (e.code !== 'MODEL_NOT_FOUND') throw e
    if (_model) throw `No cds models found at/in '${_model}'`
    if (options.dry && options.out) {
      // this is to allow project starts w/o a model with a watcher running
      console.error('No .cds models found. Doing nothing in dry mode with specified output file.')
    }
    else {
      throw 'No .cds models found, please specify one as an argument'
    }
  }
}

function _log (messages, options) {
  const cds = require('../../lib/cds')
  const { sortMessagesSeverityAware, deduplicateMessages } = cds.compiler
  deduplicateMessages(messages)
  messages = sortMessagesSeverityAware (messages)
  cds._log (messages, options)
}