mixing-langs.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/>.
 */


params.range = 100

/*
 * A trivial Perl script producing a list of numbers pair
 */
process perlTask {
    output:
    stdout randNums

	shell:
    '''
    #!/usr/bin/env perl
    use strict;
    use warnings;

    my $count;
    my $range = !{params.range};
    for ($count = 0; $count < 10; $count++) {
     	print rand($range) . ', ' . rand($range) . "\n";
    }
	'''
}


/*
 * A Python script task which parses the output of the previous script
 */
process pyTask {
    echo true

    input:
    stdin randNums

    '''
    #!/usr/bin/env python
    import sys

    x = 0
    y = 0
    lines = 0
    for line in sys.stdin:
        items = line.strip().split(",")
        x = x+ float(items[0])
        y = y+ float(items[1])
        lines = lines+1

    print "avg: %s - %s" % ( x/lines, y/lines )
	'''

}