property-out-vals.nf

#!/usr/bin/env nextflow
/*
 * Copyright (c) 2013-2018, Centre for Genomic Regulation (CRG).
 * Copyright (c) 2013-2018, Paolo Di Tommaso and the respective authors.
 *
 *   This file is part of 'Nextflow'.
 *
 *   Nextflow is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   Nextflow is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with Nextflow.  If not, see <http://www.gnu.org/licenses/>.
 */
 
process foo {
  validExitStatus 100
  output:
  val( task.exitStatus ) into ch1
  set val( record.foo ), val( record.bar ) into ch2

  script:
  record = [foo:'aaa', bar: 'bbb']
  """
  exit 100
  """
}

ch1.println { "exit_status=$it" }
ch2.println { "record=${it[0]}_${it[1]}" }