From dd5c1333f94c4728a10d365843bdf0b977e908e4 Mon Sep 17 00:00:00 2001
From: Venkat Malladi <venkat.malladi@utsouthwestern.edu>
Date: Tue, 19 Mar 2019 21:31:12 -0500
Subject: [PATCH] Get only first value.

---
 workflow/main.nf | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/workflow/main.nf b/workflow/main.nf
index 51c5e79..1365f8c 100644
--- a/workflow/main.nf
+++ b/workflow/main.nf
@@ -491,17 +491,17 @@ process softwareReport {
 
   input:
 
-  file trimReads_vf from trimReadsVersions.collect()
-  file alignReads_vf from alignReadsVersions.collect()
-  file filterReads_vf from filterReadsVersions.collect()
-  file convertReads_vf from convertReadsVersions.collect()
-  file crossReads_vf from crossReadsVersions.collect()
-  file callPeaksMACS_vf from callPeaksMACSVersions.collect()
-  file consensusPeaks_vf from consensusPeaksVersions.collect()
-  file peakAnnotation_vf from peakAnnotationVersions.collect()
-  file motifSearch_vf from motifSearchVersions.collect().ifEmpty([])
-  file diffPeaks_vf from diffPeaksVersions.collect().ifEmpty([])
-  file experimentQC_vf from experimentQCVersions.collect()
+  file trimReads_vf from trimReadsVersions.first()
+  file alignReads_vf from alignReadsVersions.first()
+  file filterReads_vf from filterReadsVersions.first()
+  file convertReads_vf from convertReadsVersions.first()
+  file crossReads_vf from crossReadsVersions.first()
+  file callPeaksMACS_vf from callPeaksMACSVersions.first()
+  file consensusPeaks_vf from consensusPeaksVersions.first()
+  file peakAnnotation_vf from peakAnnotationVersions.first()
+  file motifSearch_vf from motifSearchVersions.first().ifEmpty()
+  file diffPeaks_vf from diffPeaksVersions.first().ifEmpty()
+  file experimentQC_vf from experimentQCVersions.first()
 
   output:
 
-- 
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