decomposePar: Added 'copyZero' option

Using

decomposePar -copyZero

The mesh is decomposed as usual but the '0' directory is recursively copied to
the 'processor.*' directories rather than decomposing the fields.  This is a
convenient option to handle cases where the initial field files are generic and
can be used for serial or parallel running.  See for example the
incompressible/simpleFoam/motorBike tutorial case.

src/OpenFOAM/db/Time/timeSelector.C

@@ -135,8 +135,12 @@ void Foam::timeSelector::addOptions
     argList::addBoolOption
     (
         "noZero",
-        "exclude the '0/' dir from the times list, "
-        "has precedence over the -withZero option"
+        string("exclude the '0/' dir from the times list")
+      + (
+            withZero
+          ? ", has precedence over the -withZero option"
+          : ""
+        )
     );
     argList::addBoolOption
     (

tutorials/incompressible/simpleFoam/motorBike/Allclean

 #!/bin/sh
+cd ${0%/*} || exit 1    # Run from this directory
 
 # Source tutorial clean functions
 . $WM_PROJECT_DIR/bin/tools/CleanFunctions
 
-# remove surface and features
+# Remove surface and features
 rm -f constant/triSurface/motorBike.obj.gz > /dev/null 2>&1
 rm -rf constant/extendedFeatureEdgeMesh > /dev/null 2>&1
 rm -f constant/triSurface/motorBike.eMesh > /dev/null 2>&1
@@ -11,3 +12,5 @@ rm -f constant/triSurface/motorBike.eMesh > /dev/null 2>&1
 rm -rf 0 > /dev/null 2>&1
 
 cleanCase
+
+#------------------------------------------------------------------------------

tutorials/incompressible/simpleFoam/motorBike/Allrun

@@ -4,21 +4,16 @@ cd ${0%/*} || exit 1    # Run from this directory
 # Source tutorial run functions
 . $WM_PROJECT_DIR/bin/tools/RunFunctions
 
-# copy motorbike surface from resources directory
+# Copy motorbike surface from resources directory
 cp $FOAM_TUTORIALS/resources/geometry/motorBike.obj.gz constant/triSurface/
 runApplication surfaceFeatureExtract
 
 runApplication blockMesh
 
-runApplication decomposePar
-runParallel snappyHexMesh -overwrite
-
-#- For non-parallel running
-#cp -r 0.orig 0 > /dev/null 2>&1
+[ ! -d 0 ] && cp -r 0.orig 0
 
-#- For parallel running
-ls -d processor* | xargs -I {} rm -rf ./{}/0
-ls -d processor* | xargs -I {} cp -r 0.orig ./{}/0
+runApplication decomposePar -copyZero
+runParallel snappyHexMesh -overwrite
 
 runParallel patchSummary
 runParallel potentialFoam