Merge pull request #227 from ecmwf/feature/eckit-638

ECKIT-638: Restore quiet exception capability for ecfs

Author: simondsmart

src/eckit/exception/Exceptions.cc

@@ -63,14 +63,17 @@ void Exception::exceptionStack(std::ostream& out, bool callStack) {
     out << "End stack" << std::endl;
 }
 
-Exception::Exception(const std::string& w, const CodeLocation& loc) : what_(w), next_(first()), location_(loc) {
+Exception::Exception(const std::string& w, const CodeLocation& loc) : Exception(w, loc, false) {}
+
+Exception::Exception(const std::string& w, const CodeLocation& loc, bool quiet) :
+    what_(w), next_(first()), location_(loc) {
     callStack_ = BackTrace::dump();
 
     if (getenv_on("ECKIT_EXCEPTION_DUMPS_BACKTRACE")) {
         std::cerr << "Exception dumping backtrace: " << callStack_ << std::endl;
     }
 
-    if (!getenv_on("ECKIT_EXCEPTION_IS_SILENT")) {
+    if (!getenv_on("ECKIT_EXCEPTION_IS_SILENT") && !quiet) {
         Log::error() << "Exception: " << w << " " << location_ << std::endl;
         Log::status() << "** " << w << location_ << std::endl;
     }

src/eckit/exception/Exceptions.h

@@ -59,6 +59,7 @@ class Exception : public std::exception {
 
     /// Constructors
     explicit Exception(const std::string& what, const CodeLocation& = {});
+    explicit Exception(const std::string& what, const CodeLocation& loc, bool quiet);
     Exception();
 
     Exception(const Exception&) = default;