chore: use tarball for ncnn

Author: sileht

CMakeLists.txt

@@ -682,25 +682,27 @@ if (USE_NCNN)
   message(STATUS "Configuring NCNN")
   add_definitions(-DUSE_NCNN)
   include_directories(${CMAKE_CURRENT_BINARY_DIR})
+
   set(NCNN_PATCHES_PATH ${CMAKE_BINARY_DIR}/patches/ncnn)
   set(NCNN_PATCHES
     ${NCNN_PATCHES_PATH}/ncnn_inner_keep_h.patch
     ${NCNN_PATCHES_PATH}/ncnn_lstm_cont.patch
     ${NCNN_PATCHES_PATH}/ncnn_variable_h.patch
     ${NCNN_PATCHES_PATH}/ncnn_flatten_axis.patch
-    )
+  )
 
   set(NCNN_VERSION "20201218")
-  set(NCNN_COMPLETE ${CMAKE_BINARY_DIR}/CMakeFiles/ncnn-complete)
+  set(NCNN_TARBALL_HASH "1dac4571168b83ee99efaba969c01e8054cd8e3d9b67ca4893f32b767ab4ec48")
 
-  set(NCNN_LIB_DEPS ${CMAKE_BINARY_DIR}/ncnn/src/ncnn-build/src/libncnn.a)
   if (RPI3)
     ExternalProject_Add(
       ncnn
       PREFIX ncnn
       GIT_REPOSITORY https://github.com/tencent/ncnn.git
       GIT_TAG ${NCNN_VERSION}
-      PATCH_COMMAND git apply ${NCNN_PATCHES} && echo Applying ${NCNN_PATCHES}
+      URL https://github.com/Tencent/ncnn/releases/download/${NCNN_VERSION}/ncnn-${NCNN_VERSION}-full-source.zip
+      URL_HASH SHA256=${NCNN_TARBALL_HASH}
+      PATCH_COMMAND ${CMAKE_SOURCE_DIR}/cmake/patches-apply.sh ${NCNN_PATCHES}
       CMAKE_ARGS -DPI3=ON -DCMAKE_TOOLCHAIN_FILE=../toolchains/pi3.toolchain.cmake -DCMAKE_BUILD_TYPE=Release -DProtobuf_INCLUDE_DIR=${CMAKE_BINARY_DIR}/protobuf/src/protobuf/src -DProtobuf_LIBRARIES=${PROTOBUF_LIB_DIR}/libprotobuf.so -DProtobuf_PROTOC_EXECUTABLE=${PROTOBUF_LIB_DIR}/protoc -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_BENCHMARK=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_TESTS=OFF
       INSTALL_COMMAND ""
       DEPENDS protobuf
@@ -709,14 +711,16 @@ if (USE_NCNN)
     ExternalProject_Add(
       ncnn
       PREFIX ncnn
-      PATCH_COMMAND test -f ${NCNN_COMPLETE} || git apply ${NCNN_PATCHES}
-      GIT_TAG ${NCNN_VERSION}
-      GIT_REPOSITORY https://github.com/tencent/ncnn.git
+      URL https://github.com/Tencent/ncnn/releases/download/${NCNN_VERSION}/ncnn-${NCNN_VERSION}-full-source.zip
+      URL_HASH SHA256=${NCNN_TARBALL_HASH}
+      PATCH_COMMAND ${CMAKE_SOURCE_DIR}/cmake/patches-apply.sh ${NCNN_PATCHES}
       CMAKE_ARGS -DCMAKE_BUILD_TYPE=Release -DProtobuf_INCLUDE_DIR=${CMAKE_BINARY_DIR}/protobuf/src/protobuf/src -DProtobuf_LIBRARIES=${PROTOBUF_LIB_DIR}/libprotobuf.so -DProtobuf_PROTOC_EXECUTABLE=${PROTOBUF_LIB_DIR}/protoc -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_BUILD_BENCHMARK=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_TESTS=OFF
       INSTALL_COMMAND ""
       DEPENDS protobuf
       )
   endif()
+
+  set(NCNN_LIB_DEPS ${CMAKE_BINARY_DIR}/ncnn/src/ncnn-build/src/libncnn.a)
   set(NCNN_INC_DIR ${CMAKE_BINARY_DIR}/ncnn/src/ncnn/src ${CMAKE_BINARY_DIR}/ncnn/src/ncnn-build/src)
   set(NCNN_LIB_DIR ${CMAKE_BINARY_DIR}/ncnn/src/ncnn-build/src)
   include_directories(${NCNN_INC_DIR})

cmake/patches-apply.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+set -e
+
+for p in "$@"; do
+    patch -p 1 --dry-run < $p
+    patch -p 1 < $p
+done