Update cmake so that rippled can build as a submodule

Builds/CMake/CMakeFuncs.cmake

@@ -35,10 +35,10 @@ function (print_ep_logs _target)
     COMMENT "${_target} BUILD OUTPUT"
     COMMAND ${CMAKE_COMMAND}
       -DIN_FILE=${STAMP_DIR}/${_target}-build-out.log
-      -P ${CMAKE_SOURCE_DIR}/Builds/CMake/echo_file.cmake
+      -P ${CMAKE_CURRENT_SOURCE_DIR}/Builds/CMake/echo_file.cmake
     COMMAND ${CMAKE_COMMAND}
       -DIN_FILE=${STAMP_DIR}/${_target}-build-err.log
-      -P ${CMAKE_SOURCE_DIR}/Builds/CMake/echo_file.cmake)
+      -P ${CMAKE_CURRENT_SOURCE_DIR}/Builds/CMake/echo_file.cmake)
 endfunction ()
 
 #[=========================================================[
@@ -177,7 +177,7 @@ function (git_hash hash_val)
     endif ()
   endif ()
   execute_process (COMMAND ${GIT_EXECUTABLE} "log" "--pretty=${_format}" "-n1"
-                   WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+                   WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                    RESULT_VARIABLE _git_exit_code
                    OUTPUT_VARIABLE _temp_hash
                    OUTPUT_STRIP_TRAILING_WHITESPACE
@@ -194,7 +194,7 @@ function (git_branch branch_val)
   endif ()
   set (_branch "")
   execute_process (COMMAND ${GIT_EXECUTABLE} "rev-parse" "--abbrev-ref" "HEAD"
-                   WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+                   WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                    RESULT_VARIABLE _git_exit_code
                    OUTPUT_VARIABLE _temp_branch
                    OUTPUT_STRIP_TRAILING_WHITESPACE

Builds/CMake/RippledCov.cmake

@@ -28,7 +28,7 @@ if (coverage)
 
     set (extract_pattern "")
     if (coverage_core_only)
-      set (extract_pattern "${CMAKE_SOURCE_DIR}/src/ripple/")
+      set (extract_pattern "${CMAKE_CURRENT_SOURCE_DIR}/src/ripple/")
     endif ()
 
     if (LLVM_COV AND LLVM_PROFDATA)
@@ -72,14 +72,14 @@ if (coverage)
         COMMAND ${CMAKE_COMMAND} -E echo "Generating coverage- results will be in ${CMAKE_BINARY_DIR}/coverage/index.html."
         # create baseline info file
         COMMAND ${LCOV}
-          --no-external -d "${CMAKE_SOURCE_DIR}" -c -d . -i -o baseline.info
+          --no-external -d "${CMAKE_CURRENT_SOURCE_DIR}" -c -d . -i -o baseline.info
           | grep -v "ignoring data for external file"
         # run tests
         COMMAND ${CMAKE_COMMAND} -E echo "Running rippled tests for coverage report."
         COMMAND rippled --unittest$<$<BOOL:${coverage_test}>:=${coverage_test}> --quiet --unittest-log
         # Create test coverage data file
         COMMAND ${LCOV}
-          --no-external -d "${CMAKE_SOURCE_DIR}" -c -d . -o tests.info
+          --no-external -d "${CMAKE_CURRENT_SOURCE_DIR}" -c -d . -o tests.info
           | grep -v "ignoring data for external file"
         # Combine baseline and test coverage data
         COMMAND ${LCOV}

Builds/CMake/RippledDocs.cmake

@@ -9,7 +9,7 @@ if (NOT TARGET Doxygen::doxygen)
 endif ()
 
 set (doxygen_output_directory "${CMAKE_BINARY_DIR}/docs")
-set (doxygen_include_path "${CMAKE_SOURCE_DIR}/src")
+set (doxygen_include_path "${CMAKE_CURRENT_SOURCE_DIR}/src")
 set (doxygen_index_file "${doxygen_output_directory}/html/index.html")
 set (doxyfile "${CMAKE_CURRENT_SOURCE_DIR}/docs/Doxyfile")
 

Builds/CMake/RippledNIH.cmake

@@ -13,7 +13,7 @@ if (NOT DEFINED NIH_CACHE_ROOT)
   if (DEFINED ENV{NIH_CACHE_ROOT})
     set (NIH_CACHE_ROOT $ENV{NIH_CACHE_ROOT})
   else ()
-    set (NIH_CACHE_ROOT "${CMAKE_SOURCE_DIR}/.nih_c")
+    set (NIH_CACHE_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/.nih_c")
   endif ()
 endif ()
 set (nih_cache_path

Builds/CMake/RippledRelease.cmake

@@ -61,7 +61,7 @@ if (is_root_project)
       docker run
         -e NIH_CACHE_ROOT=/opt/rippled_bld/pkg/.nih_c
         -v ${NIH_CACHE_ROOT}/pkgbuild:/opt/rippled_bld/pkg/.nih_c
-        -v ${CMAKE_SOURCE_DIR}:/opt/rippled_bld/pkg/rippled
+        -v ${CMAKE_CURRENT_SOURCE_DIR}:/opt/rippled_bld/pkg/rippled
         -v ${CMAKE_CURRENT_BINARY_DIR}/packages:/opt/rippled_bld/pkg/out
         "$<$<BOOL:${map_user}>:--volume=/etc/passwd:/etc/passwd;--volume=/etc/group:/etc/group;--user=${DOCKER_USER_ID}:${DOCKER_GROUP_ID}>"
         -t rippled-rpm-builder:${container_label}
@@ -124,7 +124,7 @@ if (is_root_project)
       docker run
         -e NIH_CACHE_ROOT=/opt/rippled_bld/pkg/.nih_c
         -v ${NIH_CACHE_ROOT}/pkgbuild:/opt/rippled_bld/pkg/.nih_c
-        -v ${CMAKE_SOURCE_DIR}:/opt/rippled_bld/pkg/rippled
+        -v ${CMAKE_CURRENT_SOURCE_DIR}:/opt/rippled_bld/pkg/rippled
         -v ${CMAKE_CURRENT_BINARY_DIR}/packages:/opt/rippled_bld/pkg/out
         "$<$<BOOL:${map_user}>:--volume=/etc/passwd:/etc/passwd;--volume=/etc/group:/etc/group;--user=${DOCKER_USER_ID}:${DOCKER_GROUP_ID}>"
         -t rippled-dpkg-builder:${container_label}

Builds/CMake/deps/Rocksdb.cmake

@@ -64,13 +64,13 @@ if (local_rocksdb)
     PATCH_COMMAND
       # only used by windows build
       ${CMAKE_COMMAND} -E copy
-      ${CMAKE_SOURCE_DIR}/Builds/CMake/rocks_thirdparty.inc
+      ${CMAKE_CURRENT_SOURCE_DIR}/Builds/CMake/rocks_thirdparty.inc
       <SOURCE_DIR>/thirdparty.inc
     COMMAND
       # fixup their build version file to keep the values
       # from changing always
       ${CMAKE_COMMAND} -E copy_if_different
-      ${CMAKE_SOURCE_DIR}/Builds/CMake/rocksdb_build_version.cc.in
+      ${CMAKE_CURRENT_SOURCE_DIR}/Builds/CMake/rocksdb_build_version.cc.in
       <SOURCE_DIR>/util/build_version.cc.in
     CMAKE_ARGS
       -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}

Builds/CMake/deps/Soci.cmake

@@ -51,7 +51,7 @@ else()
     # This patch process is likely fragile and should be reviewed carefully
     # whenever we update the GIT_TAG above.
     PATCH_COMMAND
-      ${CMAKE_COMMAND} -P ${CMAKE_SOURCE_DIR}/Builds/CMake/soci_patch.cmake
+      ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_SOURCE_DIR}/Builds/CMake/soci_patch.cmake
     CMAKE_ARGS
       -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
       -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}

Builds/CMake/deps/Sqlite.cmake

@@ -31,7 +31,7 @@ else()
     # for the single amalgamation source file.
     PATCH_COMMAND
       ${CMAKE_COMMAND} -E copy_if_different
-      ${CMAKE_SOURCE_DIR}/Builds/CMake/CMake_sqlite3.txt
+      ${CMAKE_CURRENT_SOURCE_DIR}/Builds/CMake/CMake_sqlite3.txt
       <SOURCE_DIR>/CMakeLists.txt
     CMAKE_ARGS
       -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}

Builds/CMake/deps/gRPC.cmake

@@ -312,7 +312,7 @@ set (GRPC_GEN_DIR "${CMAKE_BINARY_DIR}/proto_gen_grpc")
 file (MAKE_DIRECTORY ${GRPC_GEN_DIR})
 set (GRPC_PROTO_SRCS)
 set (GRPC_PROTO_HDRS)
-set (GRPC_PROTO_ROOT "${CMAKE_SOURCE_DIR}/src/ripple/proto/org")
+set (GRPC_PROTO_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/src/ripple/proto/org")
 file(GLOB_RECURSE GRPC_DEFINITION_FILES LIST_DIRECTORIES false "${GRPC_PROTO_ROOT}/*.proto")
 foreach(file ${GRPC_DEFINITION_FILES})
   get_filename_component(_abs_file ${file} ABSOLUTE)