Support more compiler launchers: distcc sccache (#3738)

Co-authored-by: Yee <[email protected]>
Co-authored-by: Sophie <[email protected]>

CMakeLists.txt

@@ -45,7 +45,7 @@ include(GeneralCMakeOptions)
 include(GeneralCMakeConfig)
 include(GeneralCompilerConfig)
 include(LinkerConfig)
-include(CcacheConfig)
+include(CompilerLauncher)
 include(ThirdPartyConfig)
 include(SanitizerConfig)
 include(GitHooksConfig)

cmake/nebula/CompilerLauncher.cmake

@@ -0,0 +1,29 @@
+option(ENABLE_COMPILER_LAUNCHER "Using compiler launcher if available" ON)
+if(NOT ENABLE_COMPILER_LAUNCHER)
+  return()
+endif()
+
+set(COMPILER_LAUNCHER_OPTION
+    "ccache"
+    CACHE STRING "Compiler cache to be used")
+set(COMPILER_LAUNCHER_OPTION_VALUES "ccache" "sccache" "distcc")
+set_property(CACHE COMPILER_LAUNCHER_OPTION PROPERTY STRINGS ${COMPILER_LAUNCHER_OPTION_VALUES})
+list(
+  FIND
+  COMPILER_LAUNCHER_OPTION_VALUES
+  ${COMPILER_LAUNCHER_OPTION}
+  COMPILER_LAUNCHER_OPTION_INDEX)
+
+if(${COMPILER_LAUNCHER_OPTION_INDEX} EQUAL -1)
+  message(
+    STATUS
+      "Using custom compiler launcher system: '${COMPILER_LAUNCHER_OPTION}', explicitly supported entries are ${COMPILER_LAUNCHER_OPTION_VALUES}")
+endif()
+
+find_program(COMPILER_LAUNCHER_BINARY ${COMPILER_LAUNCHER_OPTION})
+if(COMPILER_LAUNCHER_BINARY)
+  message(STATUS "${COMPILER_LAUNCHER_OPTION} found and enabled")
+  set(CMAKE_CXX_COMPILER_LAUNCHER ${COMPILER_LAUNCHER_BINARY})
+else()
+  message(WARNING "${COMPILER_LAUNCHER_OPTION} is enabled but was not found. Not using it")
+endif()