ENH: add a new command that allows exports of library dependencies from a project to a file

1 files changed, 107 insertions, 0 deletions

diff --git a/Source/cmExportLibraryDependencies.cxx b/Source/cmExportLibraryDependencies.cxx
new file mode 100644
index 0000000000..6992b19419
--- /dev/null
+++ b/Source/cmExportLibraryDependencies.cxx
@@ -0,0 +1,107 @@
+/*=========================================================================
+
+  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 "cmExportLibraryDependencies.h"
+#include "cmGlobalGenerator.h"
+#include "cmLocalGenerator.h"
+#include "cmake.h"
+
+// cmExecutableCommand
+bool cmExportLibraryDependenciesCommand::InitialPass(std::vector<std::string> const& args)
+{
+  // First argument is the name of the test
+  // Second argument is the name of the executable to run (a target or external
+  //    program)
+  // Remaining arguments are the arguments to pass to the executable
+  if(args.size() < 1 )
+    {
+    this->SetError("called with incorrect number of arguments");
+    return false;
+    }
+  
+  // store the arguments for the final pass
+  // also expand any CMake variables
+
+  m_Args = args;
+  return true;
+}
+
+
+void cmExportLibraryDependenciesCommand::FinalPass()
+{
+  // don't do anything if local mode
+  if(m_Makefile->GetLocal())
+    {
+    return;
+    }
+    
+
+  // Create a full path filename for output Testfile
+  std::string fname = m_Args[0];
+  bool append = false;
+  if(m_Args.size() > 1)
+    {
+    if(m_Args[1] == "APPEND")
+      {
+      append = true;
+      }
+    }
+  // Open the output Testfile
+  std::ofstream fout;
+  if(append)
+    {
+    fout.open(fname.c_str(), std::ios::app);
+    }
+  else
+    {
+      fout.open(fname.c_str());
+    }
+  if (!fout)
+    {
+    cmSystemTools::Error("Error Writing ", fname.c_str());
+    return;
+    }
+  cmake* cm = m_Makefile->GetCMakeInstance();
+  cmGlobalGenerator* global = cm->GetGlobalGenerator();
+  std::vector<cmLocalGenerator *> locals;
+  global->GetLocalGenerators(locals);
+  std::string libDepName;
+  for(std::vector<cmLocalGenerator *>::iterator i = locals.begin();
+      i != locals.end(); ++i)
+    {
+    cmLocalGenerator* gen = *i;
+    cmTargets &tgts = gen->GetMakefile()->GetTargets();  
+    for(cmTargets::const_iterator l = tgts.begin();
+        l != tgts.end(); ++l)
+      {
+      if ((l->second.GetType() != cmTarget::INSTALL_FILES)
+          && (l->second.GetType() != cmTarget::INSTALL_PROGRAMS))
+        {
+        libDepName = l->first;
+        libDepName += "_LIB_DEPENDS";
+        const char* def = m_Makefile->GetDefinition(libDepName.c_str());
+        if(def)
+          {
+          fout << "SET(" << libDepName << " \"" << def << "\")\n";
+          }
+        }
+      }
+    }
+  fout << ")" << std::endl;
+  fout.close();
+  return;
+}
+