[cmake] add absl third_party cache (#55549)

* add absl to third_party

* fix

* ci test

* ci test

* ci test

* rollback

cmake/cinn.cmake

@@ -326,10 +326,6 @@ set(CINN_LIB "${CINN_LIB_LOCATION}/${CINN_LIB_NAME}")
 # Add CINN's dependencies header files
 ######################################
 
-# Add absl
-set(ABSL_INCLUDE_DIR "${CMAKE_BINARY_DIR}/dist/third_party/absl/include")
-include_directories(${ABSL_INCLUDE_DIR})
-
 # Add isl
 set(ISL_INCLUDE_DIR "${CMAKE_BINARY_DIR}/third_party/install/isl/include")
 include_directories(${ISL_INCLUDE_DIR})

cmake/cinn/external/absl.cmake

 include(ExternalProject)
 
-set(ABSL_SOURCES_DIR ${THIRD_PARTY_PATH}/absl)
+set(ABSL_SOURCES_DIR ${PADDLE_SOURCE_DIR}/third_party/absl)
 set(ABSL_INSTALL_DIR ${THIRD_PARTY_PATH}/install/absl)
-
+set(ABSL_PREFIX_DIR ${THIRD_PARTY_PATH}/absl)
 set(ABSL_CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
 
 set(ABSL_REPOSITORY "https://github.com/abseil/abseil-cpp.git")
 set(ABSL_TAG "20210324.2")
 
+if(NOT EXISTS ${ABSL_SOURCES_DIR})
+  message(
+    STATUS "Download absl source from ${ABSL_REPOSITORY} to ABSL_SOURCES_DIR")
+  execute_process(COMMAND ${GIT_EXECUTABLE} clone -b ${ABSL_TAG}
+                          ${ABSL_REPOSITORY} ${ABSL_SOURCES_DIR})
+else()
+  # check git tag
+  execute_process(
+    COMMAND ${GIT_EXECUTABLE} -C ${ABSL_SOURCES_DIR} describe --tags
+    OUTPUT_VARIABLE CURRENT_TAG
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+  if(NOT ${CURRENT_TAG} STREQUAL ${ABSL_TAG})
+    message(STATUS "Checkout absl to ${ABSL_TAG}")
+    execute_process(COMMAND ${GIT_EXECUTABLE} -C ${ABSL_SOURCES_DIR} checkout
+                            -q ${ABSL_TAG})
+  endif()
+endif()
+
 set(OPTIONAL_ARGS
     "-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}"
     "-DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}"
@@ -22,9 +40,8 @@ ExternalProject_Add(
   external_absl
   ${EXTERNAL_PROJECT_LOG_ARGS}
   DEPENDS gflags
-  GIT_REPOSITORY ${ABSL_REPOSITORY}
-  GIT_TAG ${ABSL_TAG}
-  PREFIX ${ABSL_SOURCES_DIR}
+  PREFIX ${ABSL_PREFIX_DIR}
+  SOURCE_DIR ${ABSL_SOURCES_DIR}
   UPDATE_COMMAND ""
   CMAKE_ARGS ${OPTIONAL_ARGS}
              -DCMAKE_INSTALL_PREFIX=${ABSL_INSTALL_DIR}