ENH: added cmGetPropertyCommand

Source/cmGetPropertyCommand.cxx

@@ -0,0 +1,160 @@
+/*=========================================================================
+
+  Program:   CMake - Cross-Platform Makefile Generator
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even 
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#include "cmGetPropertyCommand.h"
+
+#include "cmake.h"
+#include "cmTest.h"
+
+// cmGetPropertyCommand
+bool cmGetPropertyCommand::InitialPass(
+  std::vector<std::string> const& args)
+{
+  if(args.size() < 3 )
+    {
+    this->SetError("called with incorrect number of arguments");
+    return false;
+    }
+
+  // the last argument in the property to get
+  const char *property = args[args.size()-1].c_str();
+  std::string output = "NOTFOUND";
+
+  cmProperty::ScopeType scope;
+  const char *scopeName = 0;
+  if (args[1] == "GLOBAL" && args.size() == 3)
+    {
+    scope = cmProperty::GLOBAL;
+    }
+  else if (args[1] == "DIRECTORY" && args.size() >= 3)
+    {
+    scope = cmProperty::DIRECTORY;
+    if (args.size() >= 4)
+      {
+      scopeName = args[2].c_str();
+      }
+    }
+  else if (args[1] == "TARGET" && args.size() == 4)
+    {
+    scope = cmProperty::TARGET;
+    scopeName = args[2].c_str();
+    }
+  else if (args[1] == "TEST" && args.size() == 4)
+    {
+    scope = cmProperty::TEST;
+    scopeName = args[2].c_str();
+    }
+  else if (args[1] == "SOURCE_FILE" && args.size() == 4)
+    {
+    scope = cmProperty::SOURCE_FILE;
+    scopeName = args[2].c_str();
+    }
+  else
+    {
+    this->SetError("called with illegal arguments.");
+    return false;
+    }
+  
+  switch (scope) 
+    {
+    case cmProperty::TARGET:
+      {
+      cmTarget *tgt = this->Makefile->GetLocalGenerator()->GetGlobalGenerator()
+        ->FindTarget(0, scopeName, true);
+      if (tgt)
+        {
+        cmTarget& target = *tgt;
+        const char *prop = target.GetProperty(property);
+        if (prop)
+          {
+          output = prop;
+          }
+        }
+      }
+      break;
+    case cmProperty::DIRECTORY:
+      {
+      cmLocalGenerator *lg = this->Makefile->GetLocalGenerator();
+      if (args.size() >= 4)
+        {
+        std::string sd = scopeName;
+        // make sure the start dir is a full path
+        if (!cmSystemTools::FileIsFullPath(sd.c_str()))
+          {
+          sd = this->Makefile->GetStartDirectory();
+          sd += "/";
+          sd += scopeName;
+          }
+        
+        // The local generators are associated with collapsed paths.
+        sd = cmSystemTools::CollapseFullPath(sd.c_str());
+        
+        // lookup the makefile from the directory name
+        lg = 
+          this->Makefile->GetLocalGenerator()->GetGlobalGenerator()->
+          FindLocalGenerator(sd.c_str());
+        }
+      if (!lg)
+        {
+        this->SetError
+          ("DIRECTORY argument provided but requested directory not found. "
+           "This could be because the directory argument was invalid or, "
+           "it is valid but has not been processed yet.");
+        return false;
+        }
+      const char *prop = lg->GetMakefile()->GetProperty(property);
+      if (prop)
+        {
+        output = prop;
+        }      
+      }
+      break;
+    case cmProperty::GLOBAL:
+      {
+      const char *prop = 
+        this->Makefile->GetCMakeInstance()->GetProperty(property);
+      if (prop)
+        {
+        output = prop;
+        }      
+      }
+      break;
+    case cmProperty::TEST:
+      {
+      cmTest *test = this->Makefile->GetTest(scopeName);
+      const char *prop = test->GetProperty(property);
+      if (prop)
+        {
+        output = prop;
+        }
+      }
+      break;
+    case cmProperty::SOURCE_FILE:
+      {
+      cmSourceFile* sf = this->Makefile->GetSource(scopeName);
+      const char *prop = sf->GetProperty(property);
+      if (prop)
+        {
+        output = prop;
+        }
+      }
+      break;
+    }
+
+  this->Makefile->AddDefinition(args[0].c_str(), output.c_str());
+  return true;
+}
+

Source/cmGetPropertyCommand.h

@@ -0,0 +1,73 @@
+/*=========================================================================
+
+  Program:   CMake - Cross-Platform Makefile Generator
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even 
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#ifndef cmGetPropertyCommand_h
+#define cmGetPropertyCommand_h
+
+#include "cmCommand.h"
+
+class cmGetPropertyCommand : public cmCommand
+{
+public:
+  virtual cmCommand* Clone() 
+    {
+      return new cmGetPropertyCommand;
+    }
+
+  /**
+   * This is called when the command is first encountered in
+   * the input file.
+   */
+  virtual bool InitialPass(std::vector<std::string> const& args);
+
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
+  /**
+   * The name of the command as specified in CMakeList.txt.
+   */
+  virtual const char* GetName() { return "GET_PROPERTY";}
+
+  /**
+   * Succinct documentation.
+   */
+  virtual const char* GetTerseDocumentation() 
+    {
+    return "Get a property.";
+    }
+  
+  /**
+   * Longer documentation.
+   */
+  virtual const char* GetFullDocumentation()
+    {
+      return
+        "  GET_PROPERTY(VAR scope_value property)\n"
+        "Get a property from cmake.  The scope_value is either GLOBAL "
+        "DIRECTORY dir_name, TARGET tgt_name, SOURCE_FILE src_name, "
+        "or TEST test_name. The resulting value is "
+        "stored in the variable VAR. If the property is not found, "
+        "CMake will report an error.";
+    }
+  
+  cmTypeMacro(cmGetPropertyCommand, cmCommand);
+};
+
+
+
+#endif