Refactor tool selection for edit_cache (#14544)

Refactor edit_cache tool selection to ask each global generator for its
preference.  Teach the Ninja generator to always use cmake-gui because
Ninja by design cannot run interactive terminal dialogs like ccmake.
Teach the Makefile generator to use cmake-gui when also using an "extra"
generator whose IDE has no terminal to run ccmake, and otherwise fall
back to CMAKE_EDIT_COMMAND selection for normal Makefile build systems.

1 files changed, 1 insertions, 0 deletions

diff --git a/Source/cmGlobalNinjaGenerator.h b/Source/cmGlobalNinjaGenerator.h
index be58df1..e9c8684 100644
--- a/Source/cmGlobalNinjaGenerator.h
+++ b/Source/cmGlobalNinjaGenerator.h
@@ -306,6 +306,7 @@ protected:
 
 
 private:
+  virtual std::string GetEditCacheCommand() const;
 
   /// @see cmGlobalGenerator::ComputeTargetObjects
   virtual void ComputeTargetObjects(cmGeneratorTarget* gt) const;