CONFIG: bin/tools/query-versions

- Query the etc/config.sh values for ThirdParty software.
  Usable without an active OpenFOAM environment.

wmake/scripts/sysFunctions

@@ -8,8 +8,7 @@
 #     Copyright (C) 2018-2019 OpenCFD Ltd.
 #------------------------------------------------------------------------------
 # License
-#     This file is part of OpenFOAM, licensed under GNU General Public License
-#     <http://www.gnu.org/licenses/>.
+#     This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
 #
 # Script
 #     sysFunctions
@@ -91,6 +90,26 @@ then
     }
 
 
+    # Simple output for -query
+    # $1 = software
+    # $2 = setting
+    _process_query()
+    {
+        if isNone "$2"
+        then
+            echo "$1=none"
+        elif isAbsdir "$2"    ## not hasAbsdir
+        then
+            echo "$1=${2##*/}"
+        elif isSystem "$2"
+        then
+            echo "$1=system"
+        else
+            echo "$1=unknown"
+        fi
+    }
+
+
     # Return system prefix (/usr, /usr/local, ...) based on hint provided
     # Eg,
     #    sysPrefix "/usr/local/include/fftw3.h"  -> "/usr/local"