13 lines
547 B
Plaintext
13 lines
547 B
Plaintext
channel.of(
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['chr1', ['/path/to/region1_chr1.vcf', '/path/to/region2_chr1.vcf']],
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['chr2', ['/path/to/region1_chr2.vcf', '/path/to/region2_chr2.vcf', '/path/to/region3_chr2.vcf']],
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)
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.flatMap { chr, vcfs ->
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vcfs.collect { vcf ->
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tuple(groupKey(chr, vcfs.size()), vcf) // preserve group size with key
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}
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}
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.view { v -> "scattered: ${v}" }
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.groupTuple()
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.map { key, vcfs -> tuple(key.getGroupTarget(), vcfs) } // unwrap group key
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.view { v -> "gathered: ${v}" } |