function main() {
  var parser = nomnom();
  parser.script('ijs')
        .nocolors()
        .printer(function(s, code) {
          console.log(s);
          if (code) {
            process.exit(code);
          }
        })
        .option('version', {
          abbr: 'v',
          flag: true,
          help: 'print version and exit',
          callback: function() {
            console.log('0.1.0');
            process.exit(0);
          }
        })
        .option('userPath', {
          abbr: 'u',
          full: 'userPath',
          metavar: 'path',
          type: 'string',
          required: true,
          help: 'path that will contain installed node modules',
          callback: function(userPath) {
            if (!fs.existsSync(userPath) || !fs.statSync(userPath).isDirectory()) {
              return 'expected an existing directory for the userPath option';
            }
            return null;
          }
        })
        .option('connectionFile', {
          position: 0,
          required: true,
          help: 'path to file containing kernel connection information'
        });
  var options = parser.parse(process.argv.slice(2));

  if (options) {
    var shellConfig = {
      userPath: options.userPath
    };

    var connectionConfig = JSON.parse(fs.readFileSync(options.connectionFile,
                                                      { encoding: 'utf8' }));

    Shell.create(shellConfig, function(shell) {
      Session.run(shell, connectionConfig);
    });
  }
}
function main() {
  var parser = nomnom();
  parser.script('ijs')
        .nocolors()
        .printer(function(s, code) {
          console.log(s);
          if (code) {
            process.exit(code);
          }
        })
        .option('version', {
          abbr: 'v',
          flag: true,
          help: 'print version and exit',
          callback: function() {
            console.log('0.1.0');
            process.exit(0);
          }
        })
        .option('userPath', {
          abbr: 'u',
          full: 'userPath',
          metavar: 'path',
          type: 'string',
          required: true,
          help: 'path that will contain installed node modules',
          callback: function(userPath) {
            if (!fs.existsSync(userPath) || !fs.statSync(userPath).isDirectory()) {
              return 'expected an existing directory for the userPath option';
            }
            return null;
          }
        })
        .option('connectionFile', {
          position: 0,
          required: true,
          help: 'path to file containing kernel connection information'
        });
  var options = parser.parse(process.argv.slice(2));

  if (options) {
    var shellConfig = {
      userPath: options.userPath
    };

    var connectionConfig = JSON.parse(fs.readFileSync(options.connectionFile,
                                                      { encoding: 'utf8' }));

    Shell.create(shellConfig, function(shell) {
      Session.run(shell, connectionConfig);
    });
  }
}
function main ( ) { var parser = nomnom ( ) ; parser . script ( 'ijs' ) . nocolors ( ) . printer ( function ( s , code ) { console . log ( s ) ; if ( code ) { process . exit ( code ) ; } } ) . option ( 'version' , { abbr : 'v' , flag : true , help : 'print version and exit' , callback : function ( ) { console . log ( '0.1.0' ) ; process . exit ( 0 ) ; } } ) . option ( 'userPath' , { abbr : 'u' , full : 'userPath' , metavar : 'path' , type : 'string' , required : true , help : 'path that will contain installed node modules' , callback : function ( userPath ) { if ( ! fs . existsSync ( userPath ) || ! fs . statSync ( userPath ) . isDirectory ( ) ) { return 'expected an existing directory for the userPath option' ; } return null ; } } ) . option ( 'connectionFile' , { position : 0 , required : true , help : 'path to file containing kernel connection information' } ) ; var options = parser . parse ( process . argv . slice ( 2 ) ) ; if ( options ) { var shellConfig = { userPath : options . userPath } ; var connectionConfig = JSON . parse ( fs . readFileSync ( options . connectionFile , { encoding : 'utf8' } ) ) ; Shell . create ( shellConfig , function ( shell ) { Session . run ( shell , connectionConfig ) ; } ) ; } }
The main method which parses input arguments, creates a Shell providing evaluation functionality and the Session object to handle the kernel protocol.
The main method which parses input arguments creates a Shell providing evaluation functionality and the Session object to handle the kernel protocol .