Test: Add new testsuite SDK

fairmq/sdk/DDSEnvironment.cxx

@@ -0,0 +1,73 @@
+/********************************************************************************
+ *    Copyright (C) 2019 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH    *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
+
+#include "DDSEnvironment.h"
+
+#include <DDS/Tools.h>
+#include <cstdlib>
+#include <fairmq/Tools.h>
+#include <sstream>
+#include <stdlib.h>
+#include <utility>
+
+namespace fair {
+namespace mq {
+namespace sdk {
+
+// TODO https://github.com/FairRootGroup/DDS/issues/224
+auto LoadDDSEnv(const boost::filesystem::path& config_home, const boost::filesystem::path& prefix)
+    -> void
+{
+    setenv("DDS_LOCATION", prefix.c_str(), 1);
+    if (!config_home.empty()) {
+        setenv("HOME", config_home.c_str(), 1);
+    }
+    std::string path(std::getenv("PATH"));
+    path = DDSExecutableDir + std::string(":") + path;
+    setenv("PATH", path.c_str(), 1);
+    std::istringstream cmd;
+    cmd.str("DDS_CFG=`dds-user-defaults --ignore-default-sid -p`\n"
+            "if [ -z \"$DDS_CFG\" ]; then\n"
+            "  dds-user-defaults --ignore-default-sid -d -c \"$HOME/.DDS/DDS.cfg\"\n"
+            "fi");
+    std::system(cmd.str().c_str());
+}
+
+struct DDSEnvironment::Impl
+{
+    Impl(Path config_home, Path prefix)
+        : fConfigHome(std::move(config_home))
+        , fInstallPrefix(std::move(prefix))
+    {
+        LoadDDSEnv(fConfigHome, fInstallPrefix);
+        if (fConfigHome.empty()) {
+            fConfigHome = std::getenv("HOME");
+        }
+    }
+
+    Path fConfigHome;
+    Path fInstallPrefix;
+};
+
+DDSEnvironment::DDSEnvironment(Path config_home, Path prefix)
+    : fImpl(std::make_shared<Impl>(std::move(config_home), std::move(prefix)))
+{}
+
+auto DDSEnvironment::GetConfigHome() const -> Path { return fImpl->fConfigHome; }
+
+auto DDSEnvironment::GetInstallPrefix() const -> Path { return fImpl->fInstallPrefix; }
+
+auto operator<<(std::ostream& os, DDSEnvironment env) -> std::ostream&
+{
+    return os << "$DDS_LOCATION: " << env.GetInstallPrefix() << ", "
+              << "$DDS_CONFIG_HOME: " << env.GetConfigHome() / DDSEnvironment::Path(".DDS");
+}
+
+}   // namespace sdk
+}   // namespace mq
+}   // namespace fair