Merge branch 'feature-basty_generate_fasta' into 'develop'

Feature basty generate fasta

for #31

See merge request !51

biopet-framework/src/main/scala/nl/lumc/sasc/biopet/core/BiopetExecutable.scala

@@ -37,6 +37,7 @@ object BiopetExecutable extends Logging {
       nl.lumc.sasc.biopet.tools.SageCountFastq,
       nl.lumc.sasc.biopet.tools.SageCreateLibrary,
       nl.lumc.sasc.biopet.tools.SageCreateTagCounts,
+      nl.lumc.sasc.biopet.tools.BastyGenerateFasta,
       nl.lumc.sasc.biopet.tools.MergeAlleles,
       nl.lumc.sasc.biopet.tools.SamplesTsvToJson)
   )

biopet-framework/src/main/scala/nl/lumc/sasc/biopet/core/BiopetJavaCommandLineFunction.scala

@@ -9,6 +9,8 @@ trait BiopetJavaCommandLineFunction extends JavaCommandLineFunction with BiopetC
   javaGCHeapFreeLimit = config("java_gc_heap_freelimit")
   javaGCTimeLimit = config("java_gc_timelimit")
 
+  override def javaOpts = super.javaOpts + optional("-Dscala.concurrent.context.numThreads=", threads, spaceSeparated = false, escape = false)
+
   override def afterGraph {
     memoryLimit = config("memory_limit")
   }

biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/Raxml.scala

@@ -7,9 +7,9 @@ import java.io.File
 
 class Raxml(val root: Configurable) extends BiopetCommandLineFunction {
 
-  override val defaultThreads = 4
+  override val defaultThreads = 1
   override def versionCommand = executable + " -v"
-  override val versionRegex = """.*version \w* .*""".r
+  override val versionRegex = """.*version ([\w\.]*) .*""".r
 
   @Input(doc = "Input phy/fasta file", required = true)
   var input: File = _
@@ -32,8 +32,8 @@ class Raxml(val root: Configurable) extends BiopetCommandLineFunction {
   @Argument(doc = "Name of output files", required = true)
   var f: String = "d"
 
-  @Argument(doc = "Output directory", required = false)
-  var w: String = jobLocalDir.getAbsolutePath
+  @Argument(doc = "Output directory", required = true)
+  var w: String = _
 
   @Input(required = false)
   var t: File = _
@@ -44,18 +44,35 @@ class Raxml(val root: Configurable) extends BiopetCommandLineFunction {
   @Output(doc = "Output files", required = false)
   private var out: List[File] = Nil
 
-  executable = config("exe", default = "raxmlHPC")
+  var executableNonThreads: String = config("exe", default = "raxmlHPC")
+  var executableThreads: String = config("exe_pthreads")
 
   override def afterGraph {
+    if (threads == 0) threads = getThreads(defaultThreads)
+    executable = if (threads > 1 && executableThreads != null) executableThreads else executableNonThreads
     super.afterGraph
+    out +:= getInfoFile
     f match {
-      case "d" if b.isEmpty   => out +:= getBestTree
-      case "d" if b.isDefined => out +:= getBootstrap
+      case "d" if b.isEmpty => {
+        out +:= getBestTreeFile
+        for (t <- 0 until N.getOrElse(1)) {
+          out +:= new File(w + File.separator + "RAxML_log." + n + ".RUN." + t)
+          out +:= new File(w + File.separator + "RAxML_parsimonyTree." + n + ".RUN." + t)
+          out +:= new File(w + File.separator + "RAxML_result." + n + ".RUN." + t)
+        }
+      }
+      case "d" if b.isDefined => out +:= getBootstrapFile
+      case "b" => {
+        out +:= new File(w + File.separator + "RAxML_bipartitionsBranchLabels." + n)
+        out +:= new File(w + File.separator + "RAxML_bipartitions." + n)
+      }
+      case _ =>
     }
   }
 
-  def getBestTree: File = new File(w + File.separator + "RAxML_bestTree." + n)
-  def getBootstrap: File = new File(w + File.separator + "RAxML_bootstrap." + n)
+  def getBestTreeFile: File = new File(w + File.separator + "RAxML_bestTree." + n)
+  def getBootstrapFile: File = new File(w + File.separator + "RAxML_bootstrap." + n)
+  def getInfoFile: File = new File(w + File.separator + "RAxML_info." + n)
 
   def cmdLine = required(executable) +
     required("-m", m) +
@@ -63,9 +80,10 @@ class Raxml(val root: Configurable) extends BiopetCommandLineFunction {
     optional("-p", p) +
     optional("-b", b) +
     optional("-N", N) +
+    optional("-n", n) +
     optional("-w", w) +
     optional("-f", f) +
     optional("-t", t) +
     optional("-z", z) +
-    (if (threads > 1) required("-T", threads) else "")
-}
\ No newline at end of file
+    required("-T", threads)
+}

biopet-framework/src/main/scala/nl/lumc/sasc/biopet/pipelines/basty/Basty.scala

 package nl.lumc.sasc.biopet.pipelines.basty
 
+import java.io.File
 import nl.lumc.sasc.biopet.core.MultiSampleQScript
 import nl.lumc.sasc.biopet.core.PipelineCommand
 import nl.lumc.sasc.biopet.core.config.Configurable
+import nl.lumc.sasc.biopet.extensions.Cat
+import nl.lumc.sasc.biopet.extensions.Raxml
 import nl.lumc.sasc.biopet.pipelines.gatk.GatkPipeline
+import nl.lumc.sasc.biopet.tools.BastyGenerateFasta
 import org.broadinstitute.gatk.queue.QScript
 
 class Basty(val root: Configurable) extends QScript with MultiSampleQScript {
@@ -12,15 +16,18 @@ class Basty(val root: Configurable) extends QScript with MultiSampleQScript {
   class LibraryOutput extends AbstractLibraryOutput {
   }
 
+  case class FastaOutput(variants: File, consensus: File, consensusVariants: File)
   class SampleOutput extends AbstractSampleOutput {
+    var output: FastaOutput = _
+    var outputSnps: FastaOutput = _
   }
 
-  defaults ++= Map("ploidy" -> 1, "use_haplotypecaller" -> false, "use_unifiedgenotyper" -> true)
+  defaults ++= Map("ploidy" -> 1, "use_haplotypecaller" -> false, "use_unifiedgenotyper" -> true, "joint_variantcalling" -> true)
 
-  var gatkPipeline: GatkPipeline = _
+  var gatkPipeline: GatkPipeline = new GatkPipeline(this)
+  gatkPipeline.jointVariantcalling = true
 
   def init() {
-    gatkPipeline = new GatkPipeline(this)
     gatkPipeline.outputDir = outputDir
     gatkPipeline.init
   }
@@ -29,17 +36,82 @@ class Basty(val root: Configurable) extends QScript with MultiSampleQScript {
     gatkPipeline.biopetScript
     addAll(gatkPipeline.functions)
 
+    val refVariants = addGenerateFasta(null, outputDir + "reference/", outputName = "reference")
+    val refVariantSnps = addGenerateFasta(null, outputDir + "reference/", outputName = "reference", snpsOnly = true)
+
     runSamplesJobs()
+
+    val catVariants = Cat(this, refVariants.variants :: samplesOutput.map(_._2.output.variants).toList, outputDir + "fastas/variant.fasta")
+    add(catVariants)
+    val catVariantsSnps = Cat(this, refVariantSnps.variants :: samplesOutput.map(_._2.outputSnps.variants).toList, outputDir + "fastas/variant.snps_only.fasta")
+    add(catVariantsSnps)
+
+    val catConsensus = Cat(this, refVariants.consensus :: samplesOutput.map(_._2.output.consensus).toList, outputDir + "fastas/consensus.fasta")
+    add(catConsensus)
+    val catConsensusSnps = Cat(this, refVariantSnps.consensus :: samplesOutput.map(_._2.outputSnps.consensus).toList, outputDir + "fastas/consensus.snps_only.fasta")
+    add(catConsensusSnps)
+
+    val catConsensusVariants = Cat(this, refVariants.consensusVariants :: samplesOutput.map(_._2.output.consensusVariants).toList, outputDir + "fastas/consensus.variant.fasta")
+    add(catConsensusVariants)
+    val catConsensusVariantsSnps = Cat(this, refVariantSnps.consensusVariants :: samplesOutput.map(_._2.outputSnps.consensusVariants).toList, outputDir + "fastas/consensus.variant.snps_only.fasta")
+    add(catConsensusVariantsSnps)
+
+    val seed: Int = config("seed", default = 12345)
+    def addRaxml(input: File, outputDir: String, outputName: String) {
+      val raxmlMl = new Raxml(this)
+      raxmlMl.input = input
+      raxmlMl.m = config("raxml_ml_model", default = "GTRGAMMAX")
+      raxmlMl.p = seed
+      raxmlMl.n = outputName + "_ml"
+      raxmlMl.w = outputDir
+      raxmlMl.N = config("ml_runs", default = 20, submodule = "raxml")
+      add(raxmlMl)
+
+      val r = new scala.util.Random(seed)
+      val numBoot = config("boot_runs", default = 100, submodule = "raxml").getInt
+      val bootList = for (t <- 0 until numBoot) yield {
+        val raxmlBoot = new Raxml(this)
+        raxmlBoot.threads = 1
+        raxmlBoot.input = input
+        raxmlBoot.m = config("raxml_ml_model", default = "GTRGAMMAX")
+        raxmlBoot.p = seed
+        raxmlBoot.b = math.abs(r.nextInt)
+        raxmlBoot.w = outputDir
+        raxmlBoot.N = 1
+        raxmlBoot.n = outputName + "_boot_" + t
+        add(raxmlBoot)
+        raxmlBoot.getBootstrapFile
+      }
+
+      val cat = Cat(this, bootList.toList, outputDir + "/boot_list")
+      add(cat)
+
+      val raxmlBi = new Raxml(this)
+      raxmlBi.input = input
+      raxmlBi.t = raxmlMl.getBestTreeFile
+      raxmlBi.z = cat.output
+      raxmlBi.m = config("raxml_ml_model", default = "GTRGAMMAX")
+      raxmlBi.p = seed
+      raxmlBi.f = "b"
+      raxmlBi.n = outputName + "_bi"
+      raxmlBi.w = outputDir
+      add(raxmlBi)
+    }
+
+    addRaxml(catVariantsSnps.output, outputDir + "raxml", "snps")
   }
 
   // Called for each sample
   def runSingleSampleJobs(sampleConfig: Map[String, Any]): SampleOutput = {
     val sampleOutput = new SampleOutput
     val sampleID: String = sampleConfig("ID").toString
-    val sampleDir = globalSampleDir + sampleID
+    val sampleDir = globalSampleDir + sampleID + "/"
 
     sampleOutput.libraries = runLibraryJobs(sampleConfig)
 
+    sampleOutput.output = addGenerateFasta(sampleID, sampleDir)
+    sampleOutput.outputSnps = addGenerateFasta(sampleID, sampleDir, snpsOnly = true)
+
     return sampleOutput
   }
 
@@ -53,6 +125,23 @@ class Basty(val root: Configurable) extends QScript with MultiSampleQScript {
 
     return libraryOutput
   }
+
+  def addGenerateFasta(sampleName: String, outputDir: String, outputName: String = null,
+                       snpsOnly: Boolean = false): FastaOutput = {
+    val bastyGenerateFasta = new BastyGenerateFasta(this)
+    bastyGenerateFasta.outputName = if (outputName != null) outputName else sampleName
+    bastyGenerateFasta.inputVcf = gatkPipeline.multisampleVariantcalling.scriptOutput.finalVcfFile
+    if (gatkPipeline.samplesOutput.contains(sampleName)) {
+      bastyGenerateFasta.bamFile = gatkPipeline.samplesOutput(sampleName).variantcalling.bamFiles.head
+    }
+    bastyGenerateFasta.outputVariants = outputDir + bastyGenerateFasta.outputName + ".variants" + (if (snpsOnly) ".snps_only" else "") + ".fasta"
+    bastyGenerateFasta.outputConsensus = outputDir + bastyGenerateFasta.outputName + ".consensus" + (if (snpsOnly) ".snps_only" else "") + ".fasta"
+    bastyGenerateFasta.outputConsensusVariants = outputDir + bastyGenerateFasta.outputName + ".consensus_variants" + (if (snpsOnly) ".snps_only" else "") + ".fasta"
+    bastyGenerateFasta.sampleName = sampleName
+    bastyGenerateFasta.snpsOnly = snpsOnly
+    add(bastyGenerateFasta)
+    return FastaOutput(bastyGenerateFasta.outputVariants, bastyGenerateFasta.outputConsensus, bastyGenerateFasta.outputConsensusVariants)
+  }
 }
 
 object Basty extends PipelineCommand

biopet-framework/src/main/scala/nl/lumc/sasc/biopet/pipelines/gatk/GatkPipeline.scala

@@ -59,6 +59,11 @@ class GatkPipeline(val root: Configurable) extends QScript with MultiSampleQScri
     else if (!outputDir.endsWith("/")) outputDir += "/"
   }
 
+  val multisampleVariantcalling = new GatkVariantcalling(this) {
+    override protected lazy val configName = "gatkvariantcalling"
+    override def configPath: List[String] = "multisample" :: super.configPath
+  }
+
   def biopetScript() {
     if (onlySample.isEmpty) {
       runSamplesJobs
@@ -92,23 +97,19 @@ class GatkPipeline(val root: Configurable) extends QScript with MultiSampleQScri
         val cvRaw = CombineVariants(this, allRawVcfFiles.toList, outputDir + "variantcalling/multisample.raw.vcf.gz")
         add(cvRaw)
 
-        val gatkVariantcalling = new GatkVariantcalling(this) {
-          override protected lazy val configName = "gatkvariantcalling"
-          override def configPath: List[String] = "multisample" :: super.configPath
-        }
-        gatkVariantcalling.preProcesBams = Some(false)
-        gatkVariantcalling.doublePreProces = Some(false)
-        gatkVariantcalling.inputBams = allBamfiles.toList
-        gatkVariantcalling.rawVcfInput = cvRaw.out
-        gatkVariantcalling.outputDir = outputDir + "variantcalling"
-        gatkVariantcalling.outputName = "multisample"
-        gatkVariantcalling.init
-        gatkVariantcalling.biopetScript
-        addAll(gatkVariantcalling.functions)
+        multisampleVariantcalling.preProcesBams = false
+        multisampleVariantcalling.doublePreProces = false
+        multisampleVariantcalling.inputBams = allBamfiles.toList
+        multisampleVariantcalling.rawVcfInput = cvRaw.out
+        multisampleVariantcalling.outputDir = outputDir + "variantcalling"
+        multisampleVariantcalling.outputName = "multisample"
+        multisampleVariantcalling.init
+        multisampleVariantcalling.biopetScript
+        addAll(multisampleVariantcalling.functions)
 
         if (config("inputtype", default = "dna").getString != "rna" && config("recalibration", default = false).getBoolean) {
           val recalibration = new GatkVariantRecalibration(this)
-          recalibration.inputVcf = gatkVariantcalling.scriptOutput.finalVcfFile
+          recalibration.inputVcf = multisampleVariantcalling.scriptOutput.finalVcfFile
           recalibration.bamFiles = finalBamFiles
           recalibration.outputDir = outputDir + "recalibration/"
           recalibration.init
@@ -134,10 +135,10 @@ class GatkPipeline(val root: Configurable) extends QScript with MultiSampleQScri
       val gatkVariantcalling = new GatkVariantcalling(this)
       gatkVariantcalling.inputBams = libraryBamfiles
       gatkVariantcalling.outputDir = sampleDir + "/variantcalling/"
-      gatkVariantcalling.preProcesBams = Some(false)
+      gatkVariantcalling.preProcesBams = false
       if (!singleSampleCalling) {
-        gatkVariantcalling.useHaplotypecaller = Some(false)
-        gatkVariantcalling.useUnifiedGenotyper = Some(false)
+        gatkVariantcalling.useHaplotypecaller = false
+        gatkVariantcalling.useUnifiedGenotyper = false
       }
       gatkVariantcalling.sampleID = sampleID
       gatkVariantcalling.init

biopet-framework/src/main/scala/nl/lumc/sasc/biopet/pipelines/gatk/GatkVariantcalling.scala

@@ -8,7 +8,7 @@ import nl.lumc.sasc.biopet.extensions.gatk.{ AnalyzeCovariates, BaseRecalibrator
 import nl.lumc.sasc.biopet.extensions.picard.MarkDuplicates
 import org.broadinstitute.gatk.queue.QScript
 import org.broadinstitute.gatk.queue.extensions.gatk.TaggedFile
-import org.broadinstitute.gatk.utils.commandline.{ Input, Output, Argument }
+import org.broadinstitute.gatk.utils.commandline.{ Input, Argument }
 import scala.collection.SortedMap
 import scala.language.reflectiveCalls
 
@@ -41,25 +41,32 @@ class GatkVariantcalling(val root: Configurable) extends QScript with BiopetQScr
   var useHaplotypecaller: Option[Boolean] = config("use_haplotypecaller", default = true)
   var useUnifiedGenotyper: Option[Boolean] = config("use_unifiedgenotyper", default = false)
   var useAllelesOption: Option[Boolean] = config("use_alleles_option", default = false)
+  var useIndelRealigner: Boolean = config("use_indel_realign", default = true)
+  var useBaseRecalibration: Boolean = config("use_base_recalibration", default = true)
 
   def init() {
     if (outputName == null && sampleID != null) outputName = sampleID
     else if (outputName == null) outputName = "noname"
     if (outputDir == null) throw new IllegalStateException("Missing Output directory on gatk module")
     else if (!outputDir.endsWith("/")) outputDir += "/"
+
+    val baseRecalibrator = new BaseRecalibrator(this)
+    if (preProcesBams && useBaseRecalibration && baseRecalibrator.knownSites.isEmpty) {
+      logger.warn("No Known site found, skipping base recalibration")
+      useBaseRecalibration = false
+    }
   }
 
   private def doublePreProces(files: List[File]): List[File] = {
     if (files.size == 1) return files
     if (files.isEmpty) throw new IllegalStateException("Files can't be empty")
     if (!doublePreProces.get) return files
-    val markDub = MarkDuplicates(this, files, new File(outputDir + outputName + ".dedup.bam"))
-    if (dbsnp != null) {
-      add(markDub, isIntermediate = true)
-      List(addIndelRealign(markDub.output, outputDir, isIntermediate = false))
+    val markDup = MarkDuplicates(this, files, new File(outputDir + outputName + ".dedup.bam"))
+    add(markDup, isIntermediate = useIndelRealigner)
+    if (useIndelRealigner) {
+      List(addIndelRealign(markDup.output, outputDir, isIntermediate = false))
     } else {
-      add(markDub, isIntermediate = true)
-      List(markDub.output)
+      List(markDup.output)
     }
   }
 
@@ -67,8 +74,14 @@ class GatkVariantcalling(val root: Configurable) extends QScript with BiopetQScr
     scriptOutput.bamFiles = if (preProcesBams.get) {
       var bamFiles: List[File] = Nil
       for (inputBam <- inputBams) {
-        var bamFile = addIndelRealign(inputBam, outputDir)
-        bamFiles :+= addBaseRecalibrator(bamFile, outputDir, isIntermediate = bamFiles.size > 1)
+        var bamFile = inputBam
+        if (useIndelRealigner) {
+          bamFile = addIndelRealign(bamFile, outputDir, isIntermediate = useBaseRecalibration)
+        }
+        if (useBaseRecalibration) {
+          bamFile = addBaseRecalibrator(bamFile, outputDir, isIntermediate = bamFiles.size > 1)
+        }
+        bamFiles :+= bamFile
       }
       doublePreProces(bamFiles)
     } else if (inputBams.size > 1 && doublePreProces.get) {
@@ -188,7 +201,7 @@ class GatkVariantcalling(val root: Configurable) extends QScript with BiopetQScr
   }
 
   def addBaseRecalibrator(inputBam: File, dir: String, isIntermediate: Boolean = false): File = {
-    val baseRecalibrator = BaseRecalibrator(this, inputBam, swapExt(dir, inputBam, ".bam", ".baserecal")) //with gatkArguments {
+    val baseRecalibrator = BaseRecalibrator(this, inputBam, swapExt(dir, inputBam, ".bam", ".baserecal"))
 
     if (baseRecalibrator.knownSites.isEmpty) {
       logger.warn("No Known site found, skipping base recalibration, file: " + inputBam)
@@ -196,7 +209,7 @@ class GatkVariantcalling(val root: Configurable) extends QScript with BiopetQScr
     }
     add(baseRecalibrator)
 
-    val baseRecalibratorAfter = BaseRecalibrator(this, inputBam, swapExt(dir, inputBam, ".bam", ".baserecal.after")) //with gatkArguments {
+    val baseRecalibratorAfter = BaseRecalibrator(this, inputBam, swapExt(dir, inputBam, ".bam", ".baserecal.after"))
     baseRecalibratorAfter.BQSR = baseRecalibrator.o
     add(baseRecalibratorAfter)
 

biopet-framework/src/main/scala/nl/lumc/sasc/biopet/tools/BastyGenerateFasta.scala

+package nl.lumc.sasc.biopet.tools
+
+import htsjdk.samtools.SamReaderFactory
+import htsjdk.samtools.reference.IndexedFastaSequenceFile
+import htsjdk.variant.variantcontext.VariantContext
+import htsjdk.variant.vcf.VCFFileReader
+import java.io.File
+import java.io.PrintWriter
+import nl.lumc.sasc.biopet.core.BiopetJavaCommandLineFunction
+import nl.lumc.sasc.biopet.core.ToolCommand
+import nl.lumc.sasc.biopet.core.config.Configurable
+import org.broadinstitute.gatk.utils.commandline.{ Input, Output }
+import scala.collection.JavaConversions._
+import nl.lumc.sasc.biopet.utils.VcfUtils._
+import scala.collection.mutable.ListBuffer
+
+class BastyGenerateFasta(val root: Configurable) extends BiopetJavaCommandLineFunction {
+  javaMainClass = getClass.getName
+
+  @Input(doc = "Input vcf file", required = false)
+  var inputVcf: File = _
+
+  @Input(doc = "Bam File", required = false)
+  var bamFile: File = _
+
+  @Input(doc = "reference", required = false)
+  var reference: File = config("reference")
+
+  @Output(doc = "Output fasta, variants only", required = false)
+  var outputVariants: File = _
+
+  @Output(doc = "Output fasta, variants only", required = false)
+  var outputConsensus: File = _
+
+  @Output(doc = "Output fasta, variants only", required = false)
+  var outputConsensusVariants: File = _
+
+  var snpsOnly: Boolean = config("snps_only", default = false)
+  var sampleName: String = _
+  var minAD: Int = config("min_ad", default = 8)
+  var minDepth: Int = config("min_depth", default = 8)
+  var outputName: String = _
+
+  override val defaultVmem = "8G"
+  memoryLimit = Option(4.0)
+
+  override def commandLine = super.commandLine +
+    optional("--inputVcf", inputVcf) +
+    optional("--bamFile", bamFile) +
+    optional("--outputVariants", outputVariants) +
+    optional("--outputConsensus", outputConsensus) +
+    optional("--outputConsensusVariants", outputConsensusVariants) +
+    conditional(snpsOnly, "--snpsOnly") +
+    optional("--sampleName", sampleName) +
+    required("--outputName", outputName) +
+    optional("--minAD", minAD) +
+    optional("--minDepth", minDepth) +
+    optional("--reference", reference)
+}
+
+object BastyGenerateFasta extends ToolCommand {
+  case class Args(inputVcf: File = null,
+                  outputVariants: File = null,
+                  outputConsensus: File = null,
+                  outputConsensusVariants: File = null,
+                  bamFile: File = null,
+                  snpsOnly: Boolean = false,
+                  sampleName: String = null,
+                  outputName: String = null,
+                  minAD: Int = 8,
+                  minDepth: Int = 8,
+                  reference: File = null) extends AbstractArgs
+
+  class OptParser extends AbstractOptParser {
+    opt[File]('V', "inputVcf") unbounded () valueName ("<file>") action { (x, c) =>
+      c.copy(inputVcf = x)
+    } text ("vcf file, needed for outputVariants and outputConsensusVariants") validate { x =>
+      if (x.exists) success else failure("File does not exist: " + x)
+    }
+    opt[File]("bamFile") unbounded () valueName ("<file>") action { (x, c) =>
+      c.copy(bamFile = x)
+    } text ("bam file, needed for outputConsensus and outputConsensusVariants") validate { x =>
+      if (x.exists) success else failure("File does not exist: " + x)
+    }
+    opt[File]("outputVariants") maxOccurs (1) unbounded () valueName ("<file>") action { (x, c) =>
+      c.copy(outputVariants = x)
+    } text ("fasta with only variants from vcf file")
+    opt[File]("outputConsensus") maxOccurs (1) unbounded () valueName ("<file>") action { (x, c) =>
+      c.copy(outputConsensus = x)
+    } text ("Consensus fasta from bam, always reference bases else 'N'")
+    opt[File]("outputConsensusVariants") maxOccurs (1) unbounded () valueName ("<file>") action { (x, c) =>
+      c.copy(outputConsensusVariants = x)
+    } text ("Consensus fasta from bam with variants from vcf file, always reference bases else 'N'")
+    opt[Unit]("snpsOnly") unbounded () action { (x, c) =>
+      c.copy(snpsOnly = true)
+    } text ("Only use snps from vcf file")
+    opt[String]("sampleName") unbounded () action { (x, c) =>
+      c.copy(sampleName = x)
+    } text ("Sample name in vcf file")
+    opt[String]("outputName") required () unbounded () action { (x, c) =>
+      c.copy(outputName = x)
+    } text ("Output name in fasta file header")
+    opt[Int]("minAD") unbounded () action { (x, c) =>
+      c.copy(minAD = x)
+    } text ("min AD value in vcf file for sample")
+    opt[Int]("minDepth") unbounded () action { (x, c) =>
+      c.copy(minDepth = x)
+    } text ("min detp in bam file")
+    opt[File]("reference") unbounded () action { (x, c) =>
+      c.copy(reference = x)
+    } text ("Indexed reference fasta file") validate { x =>
+      if (x.exists) success else failure("File does not exist: " + x)
+    }
+
+    checkConfig { c =>
+      {
+        val err: ListBuffer[String] = ListBuffer()
+        if (c.outputConsensus != null || c.outputConsensusVariants != null) {
+          if (c.reference == null)
+            err.add("No reference suplied")
+          else {
+            val index = new File(c.reference.getAbsolutePath + ".fai")
+            if (!index.exists) err.add("Reference does not have index")
+          }
+          if (c.outputConsensusVariants != null && c.inputVcf == null)
+            err.add("To write outputVariants input vcf is required, please use --inputVcf option")
+          if (c.sampleName != null && c.bamFile == null)
+            err.add("To write Consensus input bam file is required, please use --bamFile option")
+        }
+        if (c.outputVariants != null && c.inputVcf == null)
+          err.add("To write outputVariants input vcf is required, please use --inputVcf option")
+        if (c.outputVariants == null && c.outputConsensus == null && c.outputConsensusVariants == null)
+          err.add("No output file selected")
+        if (err.isEmpty) success else failure(err.mkString("", "\nError: ", "\n"))
+      }
+    }
+  }
+
+  protected var cmdArgs: Args = _
+  private val chunkSize = 100000
+
+  /**
+   * @param args the command line arguments
+   */
+  def main(args: Array[String]): Unit = {
+    val argsParser = new OptParser
+    cmdArgs = argsParser.parse(args, Args()) getOrElse sys.exit(1)
+
+    if (cmdArgs.outputVariants != null) writeVariantsOnly()
+    if (cmdArgs.outputConsensus != null || cmdArgs.outputConsensusVariants != null) writeConsensus()
+  }
+
+  protected def writeConsensus() {
+    val referenceFile = new IndexedFastaSequenceFile(cmdArgs.reference)
+    val referenceDict = referenceFile.getSequenceDictionary
+
+    for (chr <- referenceDict.getSequences) {
+      val chunks = (for (chunk <- (0 to (chr.getSequenceLength / chunkSize)).par) yield {
+        val chrName = chr.getSequenceName
+        val begin = chunk * chunkSize + 1
+        val end = {
+          val e = (chunk + 1) * chunkSize
+          if (e > chr.getSequenceLength) chr.getSequenceLength else e
+        }
+
+        logger.info("begin on: chrName: " + chrName + "  begin: " + begin + "  end: " + end)
+
+        val referenceSequence = referenceFile.getSubsequenceAt(chrName, begin, end)
+
+        val variants: Map[(Int, Int), VariantContext] = if (cmdArgs.inputVcf != null) {
+          val reader = new VCFFileReader(cmdArgs.inputVcf, true)
+          (for (variant <- reader.query(chrName, begin, end) if (!cmdArgs.snpsOnly || variant.isSNP)) yield {
+            (variant.