Set the current dirs on the snapshot before creating the cmMakefile.

The cmMakefile should get a fully prepared snapshot and not clobber its
definitions.  It should eventually be able to process list files from any
starting-point snapshot, though that is some refactoring away still.

Source/CTest/cmCTestScriptHandler.cxx

@@ -318,16 +318,13 @@ void cmCTestScriptHandler::CreateCMake()
   this->GlobalGenerator = new cmGlobalGenerator(this->CMake);
 
   cmState::Snapshot snapshot = this->CMake->GetCurrentSnapshot();
+  std::string cwd = cmSystemTools::GetCurrentWorkingDirectory();
+  snapshot.GetDirectory().SetCurrentSource(cwd);
+  snapshot.GetDirectory().SetCurrentBinary(cwd);
   this->Makefile = new cmMakefile(this->GlobalGenerator, snapshot);
 
   this->CMake->SetProgressCallback(ctestScriptProgressCallback, this->CTest);
 
-  // Set CMAKE_CURRENT_SOURCE_DIR and CMAKE_CURRENT_BINARY_DIR.
-  // Also, some commands need Makefile->GetCurrentSourceDirectory().
-  std::string cwd = cmSystemTools::GetCurrentWorkingDirectory();
-  this->Makefile->SetCurrentSourceDirectory(cwd);
-  this->Makefile->SetCurrentBinaryDirectory(cwd);
-
   // remove all cmake commands which are not scriptable, since they can't be
   // used in ctest scripts
   this->CMake->GetState()->RemoveUnscriptableCommands();

Source/cmGlobalGenerator.cxx

@@ -1108,16 +1108,16 @@ void cmGlobalGenerator::Configure()
   this->FirstTimeProgress = 0.0f;
   this->ClearGeneratorMembers();
 
-  cmMakefile* dirMf =
-      new cmMakefile(this, this->GetCMakeInstance()->GetCurrentSnapshot());
-  this->Makefiles.push_back(dirMf);
+  cmState::Snapshot snapshot = this->CMakeInstance->GetCurrentSnapshot();
 
-  // set the Start directories
-  dirMf->SetCurrentSourceDirectory
+  snapshot.GetDirectory().SetCurrentSource
     (this->CMakeInstance->GetHomeDirectory());
-  dirMf->SetCurrentBinaryDirectory
+  snapshot.GetDirectory().SetCurrentBinary
     (this->CMakeInstance->GetHomeOutputDirectory());
 
+  cmMakefile* dirMf = new cmMakefile(this, snapshot);
+  this->Makefiles.push_back(dirMf);
+
   this->BinaryDirectories.insert(
       this->CMakeInstance->GetHomeOutputDirectory());
 

Source/cmGlobalUnixMakefileGenerator3.cxx

@@ -585,12 +585,11 @@ void cmGlobalUnixMakefileGenerator3
     else
       {
       cmState::Snapshot snapshot = this->CMakeInstance->GetCurrentSnapshot();
-      mf = new cmMakefile(this, snapshot);
-      // set the Start directories
-      mf->SetCurrentSourceDirectory
+      snapshot.GetDirectory().SetCurrentSource
         (this->CMakeInstance->GetHomeDirectory());
-      mf->SetCurrentBinaryDirectory
+      snapshot.GetDirectory().SetCurrentBinary
         (this->CMakeInstance->GetHomeOutputDirectory());
+      mf = new cmMakefile(this, snapshot);
       }
 
     std::string tname = targetName;

Source/cmMakefile.cxx

@@ -120,15 +120,34 @@ cmMakefile::cmMakefile(cmGlobalGenerator* globalGenerator,
   this->AddSourceGroup("Object Files", "\\.(lo|o|obj)$");
 #endif
 
+  this->AddDefinition("CMAKE_SOURCE_DIR",
+                      this->GetCMakeInstance()->GetHomeDirectory());
+  this->AddDefinition("CMAKE_BINARY_DIR",
+                      this->GetCMakeInstance()->GetHomeOutputDirectory());
   {
-  const char* dir = this->GetCMakeInstance()->GetHomeDirectory();
-  this->AddDefinition("CMAKE_SOURCE_DIR", dir);
-  this->AddDefinition("CMAKE_CURRENT_SOURCE_DIR", dir);
+  const char* dir = this->StateSnapshot.GetDirectory().GetCurrentSource();
+  if (dir)
+    {
+    this->AddDefinition("CMAKE_CURRENT_SOURCE_DIR", dir);
+    }
+  else
+    {
+    this->AddDefinition("CMAKE_CURRENT_SOURCE_DIR",
+                        this->GetCMakeInstance()->GetHomeDirectory());
+    }
   }
   {
-  const char* dir = this->GetCMakeInstance()->GetHomeOutputDirectory();
-  this->AddDefinition("CMAKE_BINARY_DIR", dir);
-  this->AddDefinition("CMAKE_CURRENT_BINARY_DIR", dir);
+  const char* dir = this->StateSnapshot.GetDirectory().GetCurrentBinary();
+  if (dir)
+    {
+    cmSystemTools::MakeDirectory(dir);
+    this->AddDefinition("CMAKE_CURRENT_BINARY_DIR", dir);
+    }
+  else
+    {
+    this->AddDefinition("CMAKE_CURRENT_BINARY_DIR",
+                        this->GetCMakeInstance()->GetHomeOutputDirectory());
+    }
   }
 }
 
@@ -1472,11 +1491,6 @@ void cmMakefile::AddLinkLibrary(const std::string& lib)
 
 void cmMakefile::InitializeFromParent(cmMakefile* parent)
 {
-  this->AddDefinition("CMAKE_CURRENT_SOURCE_DIR",
-                      this->GetCurrentSourceDirectory());
-  this->AddDefinition("CMAKE_CURRENT_BINARY_DIR",
-                      this->GetCurrentBinaryDirectory());
-
   this->SystemIncludeDirectories = parent->SystemIncludeDirectories;
 
   // define flags
@@ -1747,14 +1761,13 @@ void cmMakefile::AddSubDirectory(const std::string& srcPath,
                                            this->ContextStack.back()->Name,
                                            this->ContextStack.back()->Line);
 
-  cmMakefile* subMf = new cmMakefile(this->GlobalGenerator, newSnapshot);
-  this->GetGlobalGenerator()->AddMakefile(subMf);
+  newSnapshot.InitializeFromParent();
 
-  // set the subdirs start dirs
-  subMf->SetCurrentSourceDirectory(srcPath);
-  subMf->SetCurrentBinaryDirectory(binPath);
+  newSnapshot.GetDirectory().SetCurrentSource(srcPath);
+  newSnapshot.GetDirectory().SetCurrentBinary(binPath);
 
-  subMf->StateSnapshot.InitializeFromParent();
+  cmMakefile* subMf = new cmMakefile(this->GlobalGenerator, newSnapshot);
+  this->GetGlobalGenerator()->AddMakefile(subMf);
 
   if(excludeFromAll)
     {

Source/cmQtAutoGenerators.cxx

@@ -178,9 +178,10 @@ bool cmQtAutoGenerators::Run(const std::string& targetDirectory,
   cmGlobalGenerator gg(&cm);
 
   cmState::Snapshot snapshot = cm.GetCurrentSnapshot();
+  snapshot.GetDirectory().SetCurrentBinary(targetDirectory);
+  snapshot.GetDirectory().SetCurrentSource(targetDirectory);
+
   cmsys::auto_ptr<cmMakefile> mf(new cmMakefile(&gg, snapshot));
-  mf->SetCurrentBinaryDirectory(targetDirectory);
-  mf->SetCurrentSourceDirectory(targetDirectory);
   gg.SetCurrentMakefile(mf.get());
 
   this->ReadAutogenInfoFile(mf.get(), targetDirectory, config);

Source/cmake.cxx

@@ -377,11 +377,11 @@ void cmake::ReadListFile(const std::vector<std::string>& args,
     this->SetHomeDirectory(cmSystemTools::GetCurrentWorkingDirectory());
     this->SetHomeOutputDirectory(cmSystemTools::GetCurrentWorkingDirectory());
     cmState::Snapshot snapshot = this->GetCurrentSnapshot();
-    cmsys::auto_ptr<cmMakefile> mf(new cmMakefile(gg, snapshot));
-    mf->SetCurrentBinaryDirectory
+    snapshot.GetDirectory().SetCurrentBinary
       (cmSystemTools::GetCurrentWorkingDirectory());
-    mf->SetCurrentSourceDirectory
+    snapshot.GetDirectory().SetCurrentSource
       (cmSystemTools::GetCurrentWorkingDirectory());
+    cmsys::auto_ptr<cmMakefile> mf(new cmMakefile(gg, snapshot));
     if (this->GetWorkingMode() != NORMAL_MODE)
       {
       std::string file(cmSystemTools::CollapseFullPath(path));
@@ -418,13 +418,13 @@ bool cmake::FindPackage(const std::vector<std::string>& args)
   this->SetGlobalGenerator(gg);
 
   cmState::Snapshot snapshot = this->GetCurrentSnapshot();
+  snapshot.GetDirectory().SetCurrentBinary
+    (cmSystemTools::GetCurrentWorkingDirectory());
+  snapshot.GetDirectory().SetCurrentSource
+    (cmSystemTools::GetCurrentWorkingDirectory());
   // read in the list file to fill the cache
   cmsys::auto_ptr<cmMakefile> mf(new cmMakefile(gg, snapshot));
   cmsys::auto_ptr<cmLocalGenerator> lg(gg->CreateLocalGenerator(mf.get()));
-  mf->SetCurrentBinaryDirectory
-    (cmSystemTools::GetCurrentWorkingDirectory());
-  mf->SetCurrentSourceDirectory
-    (cmSystemTools::GetCurrentWorkingDirectory());
 
   mf->SetArgcArgv(args);
 

Source/cmcmd.cxx

@@ -769,11 +769,13 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string>& args)
         {
         cm.SetGlobalGenerator(ggd);
         cmState::Snapshot snapshot = cm.GetCurrentSnapshot();
+        snapshot.GetDirectory().SetCurrentBinary
+          (cmSystemTools::GetCurrentWorkingDirectory());
+        snapshot.GetDirectory().SetCurrentSource
+          (cmSystemTools::GetCurrentWorkingDirectory());
         cmsys::auto_ptr<cmMakefile> mf(new cmMakefile(ggd, snapshot));
         cmsys::auto_ptr<cmLocalGenerator> lgd(
               ggd->CreateLocalGenerator(mf.get()));
-        lgd->GetMakefile()->SetCurrentSourceDirectory(startDir);
-        lgd->GetMakefile()->SetCurrentBinaryDirectory(startOutDir);
 
         // Actually scan dependencies.
         return lgd->UpdateDependencies(depInfo.c_str(),