Ninja: Add support for additional clean files

Additional clean files for the Ninja generator can be registered
via the new method `cmGlobalNinjaGenerator::AddAdditionalCleanFile`.
If there are additional clean files, a new rule `CLEAN_ADDITIONAL` and
a new build target `CMakeFiles/clean.additional` get generated.
The `clean` target will depend on `CMakeFiles/clean.additional`, if the target
exists.

1 files changed, 9 insertions, 0 deletions

diff --git a/Source/cmGlobalNinjaGenerator.h b/Source/cmGlobalNinjaGenerator.h
index ffcea60..0f90b30 100644
--- a/Source/cmGlobalNinjaGenerator.h
+++ b/Source/cmGlobalNinjaGenerator.h
@@ -257,6 +257,13 @@ public:
   };
   MapToNinjaPathImpl MapToNinjaPath() { return MapToNinjaPathImpl(this); }
 
+  // -- Additional clean files
+  void AddAdditionalCleanFile(std::string fileName);
+  const char* GetAdditionalCleanTargetName() const
+  {
+    return "CMakeFiles/clean.additional";
+  }
+
   void AddCXXCompileCommand(const std::string& commandLine,
                             const std::string& sourceFile);
 
@@ -398,6 +405,7 @@ private:
   void WriteBuiltinTargets(std::ostream& os);
   void WriteTargetAll(std::ostream& os);
   void WriteTargetRebuildManifest(std::ostream& os);
+  bool WriteTargetCleanAdditional(std::ostream& os);
   void WriteTargetClean(std::ostream& os);
   void WriteTargetHelp(std::ostream& os);
 
@@ -470,6 +478,7 @@ private:
   std::string OutputPathPrefix;
   std::string TargetAll;
   std::string CMakeCacheFile;
+  std::set<std::string> AdditionalCleanFiles;
 };
 
 #endif // ! cmGlobalNinjaGenerator_h