@sap/cds-dk/bin/eval.js

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

module.exports = Object.assign ( run, { help: `
# SYNOPSIS

    *cds eval* <code snippet>
    *cds -e* <code snippet>

    Evaluates and executes the given JavaScript code snippet. The snippet can
    refer to the already loaded *cds* variable. If it starts with a '.', 'cds'
    is automatically prepended, like shown in the following examples.
    The -e variant is just a reminiscence to node.

# EXAMPLES

    cds -e "console.log('foo')"
    cds -e "cds.compile('my-model').to.json()"
    cds -e ".compile('my-model').to.json()"
    cds -e ".compile('entity Book {key ID: UUID;}').to.sql()"
`})

// support the like of cds -e "<...>" as in node.js --> pretty helpful for quick test setups
function run ([code]) {
  if (!code)  return console.error (`Please specify the code to execute, like\n\n  cds -e "cds.compile('my-model').to.json()"\n`)
  // eslint-disable-next-line no-unused-vars
  const cds = require('../lib/cds')
  if (code[0] === '.')  code = 'cds' + code
  const outcome = eval(code)
  console.log (outcome)
}

process.on('uncaughtException', console.error)
process.on('unhandledRejection', console.error)

/* eslint no-console:0 no-eval: 0 */