odaseva-cli/lib/oda_cli_runner.js

Odaseva CLI

/*
 * Odaseva_cli Node.js wrapper  
 * For now, it only:
 * - ensures Odaseva CLI executable is reachable and runs 
 * - runs the CLI with the provided parameters
 */

const fs = require('fs');
const shell = require('shelljs');
const path = require('path');
var util = require('util')

const EXE_NAME = 'odaseva';

function debug(s) {
  if (process.env.ODASEVA_DEBUG) {
    console.log('[odaseva-cli] ' + s);
  }
}
function debug_obj(s, obj) {
  if (process.env.ODASEVA_DEBUG) {
    return debug(s + ': '+ util.inspect(obj, {showHidden: false, depth: null}))
  }
}

/*

*/
var runFromCmdLine = function () {

  var args = process.argv.slice(2);
  var cmdString = args.map( function(arg){
    return "\"" + arg.replace(/'/g, "'\\''") + "\"";
  }).join(' ');

  debug_obj('runFromCmdLine', process.argv);
  debug('extracted command string: '+ cmdString);
  return run(cmdString);
}

/*
*/
var run = function (cliArgs, bSilent = false) {
  debug("cliArgs[" + cliArgs + ']');

  var exePath = path.join( __dirname, '..', 'bin'); 
  var fullPath = path.join(exePath, EXE_NAME);
  debug("-> fullPath:" + fullPath);

  // should check file is executable...
  if (!fs.existsSync(fullPath)) {
    var err = fullPath + ' is not a valid file. ' + EXE_NAME + ' cannot be found.';
    debug(err)
    return new Error(err)
  }

  var cmdLine =  fullPath + ' ' + cliArgs;
  debug('cmdLine['+cmdLine+']');
  debug('silent['+bSilent+'] process.cwd()['+process.cwd()+']');
  if (process.env.ODASEVA_NOEXEC)
  {
    debug('Command not executed (ODASEVA_NOEXEC)')
    return 'Command not executed (ODASEVA_NOEXEC)';
  }
  debug('>>> Executing oda_cli...')

  var cmdRes = shell.exec(cmdLine, { silent: bSilent, cwd: process.cwd() });
  return cmdRes;
}
module.exports.run = run;
module.exports.runFromCmdLine = runFromCmdLine;

// Run if called directly from command line
if (require.main == module) {
  debug('Called from command line');
  runFromCmdLine();
}