From 5282a0755d3729b91885657f9f0a70c83d22b2dc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ra=C3=BAl=20Cumplido?= <raulcumplido@gmail.com>
Date: Wed, 20 Dec 2023 13:09:47 +0100
Subject: [PATCH] GH-39006: [Python] Extract libparquet requirements out of
 libarrow_python.so to new libarrow_python_parquet_encryption.so

---
 python/CMakeLists.txt | 39 +++++++++++++++++++++++----------------
 1 file changed, 23 insertions(+), 16 deletions(-)

diff --git a/python/CMakeLists.txt b/python/CMakeLists.txt
index 3f810d27271e5..a8d121fe3bcf1 100644
--- a/python/CMakeLists.txt
+++ b/python/CMakeLists.txt
@@ -332,22 +332,6 @@ if(PYARROW_BUILD_PARQUET OR PYARROW_BUILD_PARQUET_ENCRYPTION)
   find_package(Parquet REQUIRED)
 endif()
 
-if(PYARROW_BUILD_PARQUET_ENCRYPTION)
-  if(PARQUET_REQUIRE_ENCRYPTION)
-    list(APPEND PYARROW_CPP_SRCS ${PYARROW_CPP_SOURCE_DIR}/parquet_encryption.cc)
-    if(ARROW_BUILD_SHARED)
-      list(APPEND PYARROW_CPP_LINK_LIBS Parquet::parquet_shared)
-    else()
-      list(APPEND PYARROW_CPP_LINK_LIBS Parquet::parquet_static)
-    endif()
-    message(STATUS "Parquet Encryption Enabled")
-  else()
-    message(FATAL_ERROR "You must build Arrow C++ with PARQUET_REQUIRE_ENCRYPTION=ON")
-  endif()
-else()
-  message(STATUS "Parquet Encryption is NOT Enabled")
-endif()
-
 if(PYARROW_BUILD_HDFS)
   if(NOT ARROW_HDFS)
     message(FATAL_ERROR "You must build Arrow C++ with ARROW_HDFS=ON")
@@ -391,6 +375,29 @@ install(TARGETS arrow_python
         LIBRARY DESTINATION .
         RUNTIME DESTINATION .)
 
+set(PYARROW_CPP_ENCRYPTION_SRCS ${PYARROW_CPP_SOURCE_DIR}/parquet_encryption.cc)
+if(NOT PYARROW_BUILD_PARQUET_ENCRYPTION)
+  message(STATUS "Parquet Encryption is NOT Enabled")
+else()
+  if(PARQUET_REQUIRE_ENCRYPTION)
+    if(ARROW_BUILD_SHARED)
+      set(PYARROW_CPP_ENCRYPTION_LINK_LIBS Parquet::parquet_shared)
+    else()
+      set(PYARROW_CPP_ENCRYPTION_LINK_LIBS Parquet::parquet_static)
+    endif()
+    add_library(arrow_python_parquet_encryption SHARED ${PYARROW_CPP_ENCRYPTION_SRCS})
+    target_link_libraries(arrow_python_parquet_encryption
+                          PUBLIC arrow_python ${PYARROW_CPP_ENCRYPTION_LINK_LIBS})
+    install(TARGETS arrow_python_parquet_encryption
+            ARCHIVE DESTINATION .
+            LIBRARY DESTINATION .
+            RUNTIME DESTINATION .)
+    message(STATUS "Parquet Encryption Enabled")
+  else()
+    message(FATAL_ERROR "You must build Arrow C++ with PARQUET_REQUIRE_ENCRYPTION=ON")
+  endif()
+endif()
+
 set(PYARROW_CPP_FLIGHT_SRCS ${PYARROW_CPP_SOURCE_DIR}/flight.cc)
 if(PYARROW_BUILD_FLIGHT)
   if(NOT ARROW_FLIGHT)