cmState: Compute and store directory components.

There is no need to duplicate these in all cmLocalGenerators.

Rename the symbols according to current conventions.

Add explicit calls to Set{Source,Binary}Directory with empty strings
in order to trigger the population of the components containers with
the current working directory in cmLocalGenerator.  Having
directories set to empty is a special case in CMake, which is relied
on for the `if(CMAKE_BINARY_DIR)` condition at the end of
CMakeDetermineSystem.cmake.

1 files changed, 18 insertions, 0 deletions

diff --git a/Source/cmState.cxx b/Source/cmState.cxx
index 82a2939..aa690dc 100644
--- a/Source/cmState.cxx
+++ b/Source/cmState.cxx
@@ -458,6 +458,10 @@ void cmState::SetSourceDirectory(std::string const& sourceDirectory)
 {
   this->SourceDirectory = sourceDirectory;
   cmSystemTools::ConvertToUnixSlashes(this->SourceDirectory);
+
+  cmSystemTools::SplitPath(
+      cmSystemTools::CollapseFullPath(this->SourceDirectory),
+        this->SourceDirectoryComponents);
 }
 
 const char* cmState::GetSourceDirectory() const
@@ -465,10 +469,19 @@ const char* cmState::GetSourceDirectory() const
   return this->SourceDirectory.c_str();
 }
 
+std::vector<std::string> const& cmState::GetSourceDirectoryComponents() const
+{
+  return this->SourceDirectoryComponents;
+}
+
 void cmState::SetBinaryDirectory(std::string const& binaryDirectory)
 {
   this->BinaryDirectory = binaryDirectory;
   cmSystemTools::ConvertToUnixSlashes(this->BinaryDirectory);
+
+  cmSystemTools::SplitPath(
+      cmSystemTools::CollapseFullPath(this->BinaryDirectory),
+        this->BinaryDirectoryComponents);
 }
 
 const char* cmState::GetBinaryDirectory() const
@@ -476,6 +489,11 @@ const char* cmState::GetBinaryDirectory() const
   return this->BinaryDirectory.c_str();
 }
 
+std::vector<std::string> const& cmState::GetBinaryDirectoryComponents() const
+{
+  return this->BinaryDirectoryComponents;
+}
+
 cmState::Snapshot cmState::CreateSnapshot(Snapshot originSnapshot)
 {
   PositionType pos = this->ParentPositions.size();