Stop putting generated protos in source tree

The python proto files are useless, they should not be generated.
The proto files don't need to be exported to python.
The legitimately generated .cc and .h files have no business living in
the source tree, put them in the build tree.

Author: nicolasvasilache

.gitignore

@@ -3,9 +3,6 @@ __pycache__/
 *~
 build/*
 docs/build/*
-tc/proto/*.py
-tc/proto/*.cc
-tc/proto/*.h
 third-party/*_cache
 third-party/llvm_sources*
 third-party-install/*
@@ -17,8 +14,6 @@ conda
 */.nfs*
 tensor_comprehensions.egg-info/
 tensor_comprehensions/version.py
-tensor_comprehensions/*.proto
-tensor_comprehensions/*_pb2.py
 slurm-*
 examples/results*
 *.pyc

tc/proto/CMakeLists.txt

@@ -58,16 +58,10 @@ function(tc_protobuf_generate_cpp_py output_dir srcs_var hdrs_var python_var)
   set(${python_var} ${${python_var}} PARENT_SCOPE)
 endfunction()
 
-tc_protobuf_generate_cpp_py(${PROJECT_SOURCE_DIR}/tc/proto PROTO_SRCS PROTO_HDRS PROTO_PY mapping_options.proto compcache.proto)
+tc_protobuf_generate_cpp_py(${CMAKE_CURRENT_BINARY_DIR} PROTO_SRCS PROTO_HDRS PROTO_PY mapping_options.proto compcache.proto)
 
 add_library(tc_proto SHARED ${PROTO_SRCS} ${PROTO_HDRS})
 target_link_libraries(tc_proto ${PROTOBUF_LIBRARIES})
 target_include_directories(tc_proto PUBLIC ${CMAKE_CURRENT_BINARY_DIR} ${PROTOBUF_HDRS})
 
 install(TARGETS tc_proto DESTINATION lib)
-# "Install" to source_dir/tensor_comprehensions for easy inclusion in python
-# package with setuptools. Without this, setuptools is hell.
-install(PROGRAMS ${PROTO_PY}
-  DESTINATION ${PROJECT_SOURCE_DIR}/tensor_comprehensions)
-install(PROGRAMS mapping_options.proto compcache.proto
-  DESTINATION ${PROJECT_SOURCE_DIR}/tensor_comprehensions)