mixing-langs.nf

#!/usr/bin/env nextflow
/*
 * Copyright 2020-2022, Seqera Labs
 * Copyright 2013-2019, Centre for Genomic Regulation (CRG)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
nextflow.enable.dsl=1

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 {
    debug true

    input:
    stdin randNums

    '''
    #!/usr/bin/env python3
    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 ))
	'''

}