cmake: Simplify implementation of -E capabilities

The `cmake -E capabilities` command-line tool is implemented only in a
full-featured (non-bootstrap) CMake, and server mode is now always
available in this case.

Source/cmServerProtocol.cxx

@@ -630,7 +630,7 @@ cmServerResponse cmServerProtocol1::ProcessGlobalSettings(
   Json::Value obj = Json::objectValue;
 
   // Capabilities information:
-  obj[kCAPABILITIES_KEY] = cm->ReportCapabilitiesJson(true);
+  obj[kCAPABILITIES_KEY] = cm->ReportCapabilitiesJson();
 
   obj[kDEBUG_OUTPUT_KEY] = cm->GetDebugOutput();
   obj[kTRACE_KEY] = cm->GetTrace();

Source/cmake.cxx

@@ -248,7 +248,7 @@ Json::Value cmake::ReportVersionJson() const
   return version;
 }
 
-Json::Value cmake::ReportCapabilitiesJson(bool haveServerMode) const
+Json::Value cmake::ReportCapabilitiesJson() const
 {
   Json::Value obj = Json::objectValue;
 
@@ -284,18 +284,18 @@ Json::Value cmake::ReportCapabilitiesJson(bool haveServerMode) const
     generators.append(i.second);
   }
   obj["generators"] = generators;
-  obj["serverMode"] = haveServerMode;
+  obj["serverMode"] = true;
 
   return obj;
 }
 #endif
 
-std::string cmake::ReportCapabilities(bool haveServerMode) const
+std::string cmake::ReportCapabilities() const
 {
   std::string result;
 #if defined(CMAKE_BUILD_WITH_CMAKE)
   Json::FastWriter writer;
-  result = writer.write(this->ReportCapabilitiesJson(haveServerMode));
+  result = writer.write(this->ReportCapabilitiesJson());
 #else
   result = "Not supported";
 #endif

Source/cmake.h

@@ -136,9 +136,9 @@ public:
 
 #if defined(CMAKE_BUILD_WITH_CMAKE)
   Json::Value ReportVersionJson() const;
-  Json::Value ReportCapabilitiesJson(bool haveServerMode) const;
+  Json::Value ReportCapabilitiesJson() const;
 #endif
-  std::string ReportCapabilities(bool haveServerMode) const;
+  std::string ReportCapabilities() const;
 
   //@{
   /**

Source/cmcmd.cxx

@@ -734,11 +734,7 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string> const& args)
         return 1;
       }
       cmake cm(cmake::RoleInternal, cmState::Unknown);
-#if defined(CMAKE_BUILD_WITH_CMAKE)
-      std::cout << cm.ReportCapabilities(true);
-#else
-      std::cout << cm.ReportCapabilities(false);
-#endif
+      std::cout << cm.ReportCapabilities();
       return 0;
     }