Export new environment variable FOAM_CASENAME

- contains the name part of the FOAM_CASE environment variable

ReleaseNotes-1.6

@@ -145,6 +145,8 @@
     + The *new* =readList(Istream&)= can read a bracket-delimited list or handle
       a single value as a list of size 1. This can be a useful convenience when
       processing command-line options.
+    + Export *new* environment variable =FOAM_CASENAME= that contains the
+      name part of the =FOAM_CASE= environment variable
 
 *** Misc. improvements
     + Improved consistency and interoperability between =face= and =triFace= classes.

applications/utilities/postProcessing/graphics/PV3FoamReader/vtkPV3Foam/vtkPV3Foam.C

@@ -261,11 +261,15 @@ Foam::vtkPV3Foam::vtkPV3Foam
     // Set the case as an environment variable - some BCs might use this
     if (fullCasePath.name().find("processor", 0) == 0)
     {
-        setEnv("FOAM_CASE", fullCasePath.path(), true);
+        const fileName globalCase = fullCasePath.path();
+
+        setEnv("FOAM_CASE", globalCase, true);
+        setEnv("FOAM_CASENAME", globalCase.name(), true);
     }
     else
     {
         setEnv("FOAM_CASE", fullCasePath, true);
+        setEnv("FOAM_CASENAME", fullCasePath.name(), true);
     }
 
     // look for 'case{region}.OpenFOAM'
@@ -299,6 +303,7 @@ Foam::vtkPV3Foam::vtkPV3Foam
     {
         Info<< "fullCasePath=" << fullCasePath << nl
             << "FOAM_CASE=" << getEnv("FOAM_CASE") << nl
+            << "FOAM_CASENAME=" << getEnv("FOAM_CASENAME") << nl
             << "region=" << meshRegion_ << endl;
     }
 

src/OpenFOAM/global/argList/argList.C

@@ -522,8 +522,9 @@ Foam::argList::argList
     }
     jobInfo.write();
 
-    // Set the case as an environment variable
+    // Set the case and case-name as an environment variable
     setEnv("FOAM_CASE", rootPath_/globalCase_, true);
+    setEnv("FOAM_CASENAME", globalCase_, true);
 
     // Switch on signal trapping. We have to wait until after Pstream::init
     // since this sets up its own ones.

src/OpenFOAM/global/argList/argList.H

@@ -54,6 +54,8 @@ Description
 
     The environment variable @b FOAM_CASE is set to the path of the
     global case (same for serial and parallel jobs).
+    The environment variable @b FOAM_CASENAME is set to the name of the
+    global case.
 
 Note
     - Adjustment of the valid (mandatory) arguments