add nextflow d30e48d

nextflow/tests/topic-channel.nf

@@ -0,0 +1,35 @@
+
+process foo {
+  input:
+  val(index)
+
+  output:
+  stdout emit: versions, topic: versions
+
+  script:
+  """
+  echo 'foo: 0.1.0'
+  """
+}
+
+process bar {
+  input:
+  val(index)
+
+  output:
+  stdout emit: versions, topic: versions
+
+  script:
+  """
+  echo 'bar: 0.9.0'
+  """
+}
+
+workflow {
+  channel.of( 1..3 ) | foo
+  channel.of( 1..3 ) | bar
+
+  channel.topic('versions')
+  | unique
+  | collectFile(name: 'versions.txt', sort: true, storeDir: '.')
+}