CmdContext: Add support for setting context

src/commands/CmdContext.cpp

@@ -64,6 +64,8 @@ int CmdContext::execute (std::string& output)
       rc = deleteContext(words, out);
     else if (subcommand == "list")
       rc = listContexts(words, out);
+    else
+      rc = setContext(words, out);
   }
 
   output = out.str ();
@@ -207,6 +209,26 @@ int CmdContext::listContexts (std::vector <std::string>& words, std::stringstrea
   return rc;
 }
 
+////////////////////////////////////////////////////////////////////////////////
+int CmdContext::setContext (std::vector <std::string>& words, std::stringstream& out)
+{
+  // task context home
+  std::string value = words[0];
+  std::vector <std::string> contexts = getContexts ();
+
+  if (std::find (contexts.begin (), contexts.end (), value) == contexts.end())
+    throw format ("Context '{1}' not found.", value);
+
+  bool success = CmdConfig::setConfigVariable("context", value, false);
+
+  if (success)
+    out << "Context '" << value << "' applied." << "\n";
+  else
+    out << "Context '" << value << "' was not applied." << "\n";
+
+  return 0;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 CmdCompletionContext::CmdCompletionContext ()
 {

src/commands/CmdContext.h

@@ -40,6 +40,7 @@ public:
   int defineContext (std::vector <std::string>& words, std::stringstream& out);
   int deleteContext (std::vector <std::string>& words, std::stringstream& out);
   int listContexts (std::vector <std::string>& words, std::stringstream& out);
+  int setContext (std::vector <std::string>& words, std::stringstream& out);
 };
 
 class CmdCompletionContext : public Command