[build] Add steps to build curl for Androidupstream/jmalanen-curl

Add steps to build curl with openssl for Android.
Prebuilt libraries will be used by default.

2 files changed, 212 insertions, 8 deletions

diff --git a/test/android/app/build.gradle b/test/android/app/build.gradle
index 5c118d4853..aaa405b1b1 100644
--- a/test/android/app/build.gradle
+++ b/test/android/app/build.gradle
@@ -5,7 +5,7 @@ android {
 
     defaultConfig {
         applicationId = 'com.mapbox.mapboxsdk.maps.test_runner'
-        minSdkVersion 24
+        minSdkVersion 28
         targetSdkVersion 28
         def abi = 'all'
         if (project.hasProperty('mapbox.abis')) {
diff --git a/vendor/curl.cmake b/vendor/curl.cmake
index fde112b9ec..97ee9d4e73 100644
--- a/vendor/curl.cmake
+++ b/vendor/curl.cmake
@@ -2,16 +2,220 @@ if(TARGET mbgl-vendor-curl)
     return()
 endif()
 
+# Use prebuilt libraries by dedault
+if(NOT BUILD_ANDROID_CURL)
+    add_library(
+        mbgl-vendor-curl INTERFACE
+    )
+
+    set(CURL_BIN_DIR ${CMAKE_CURRENT_LIST_DIR}/mapbox-gl-native-curl/prebuilt/android)
+    set(CURL_STATIC_LIB ${CURL_BIN_DIR}/${ANDROID_ABI}/libcurl.a)
+    set(SSL_STATIC_LIB ${CURL_BIN_DIR}/${ANDROID_ABI}/libssl.a)
+    set(CRYPTO_STATIC_LIB ${CURL_BIN_DIR}/${ANDROID_ABI}/libcrypto.a)
+
+    target_link_libraries(
+        mbgl-vendor-curl
+        INTERFACE
+            $<$<PLATFORM_ID:Android>:${CURL_STATIC_LIB}> $<$<PLATFORM_ID:Android>:${SSL_STATIC_LIB}>
+            $<$<PLATFORM_ID:Android>:${CRYPTO_STATIC_LIB}>
+    )
+
+    target_include_directories(
+        mbgl-vendor-curl SYSTEM
+        INTERFACE ${CMAKE_CURRENT_LIST_DIR}/mapbox-gl-native-curl/include
+    )
+    return()
+endif()
+
+# Build Curl with OpenSSL support
+
+include(ExternalProject)
+
+include(ProcessorCount)
+processorcount(NPROC)
+
+# Check if Android NDK path is defined in the environment
+if(DEFINED ENV{ANDROID_HOME})
+    set(ANDROID_NDK_HOME $ENV{ANDROID_HOME}/ndk-bundle)
+elseif(DEFINED ENV{ANDROID_SDK_ROOT})
+    set(ANDROID_NDK_HOME $ENV{ANDROID_SDK_ROOT}/ndk-bundle)
+elseif(DEFINED ANDROID_HOME)
+    set(ANDROID_NDK_HOME ${ANDROID_HOME}/ndk-bundle)
+elseif(DEFINED ANDROID_SDK_ROOT)
+    set(ANDROID_NDK_HOME ${ANDROID_SDK_ROOT}/ndk-bundle)
+else()
+    message(FATAL_ERROR "Must set either ANDROID_HOME or ANDROID_SDK_ROOT variable")
+endif()
+
+if(CMAKE_HOST_SYSTEM_NAME STREQUAL Linux)
+    set(HOST_TAG linux-x86_64)
+elseif(CMAKE_HOST_SYSTEM_NAME STREQUAL Darwin)
+    set(HOST_TAG darwin-x86_64)
+else()
+    message(FATAL_ERROR "Unsupported host: " ${CMAKE_SYSTEM_NAME})
+endif()
+
+if(${ANDROID_ABI} STREQUAL arm64-v8a)
+    set(TRIPLE aarch64-linux-android)
+    set(SSL_TARGET_ARCH android-arm64)
+elseif(${ANDROID_ABI} STREQUAL x86_64)
+    set(TRIPLE x86_64-linux-android)
+    set(SSL_TARGET_ARCH android-x86_64)
+else()
+    message(FATAL_ERROR "-- Unsupported Android ABI: " ${ANDROID_ABI})
+endif()
+
+set(TOOLCHAIN ${ANDROID_NDK_HOME}/toolchains/llvm/prebuilt/${HOST_TAG})
+set(PATH ${TOOLCHAIN}/bin:$ENV{PATH})
+
+set(CC ${TOOLCHAIN}/bin/${TRIPLE}${ANDROID_NATIVE_API_LEVEL}-clang)
+set(CXX ${TOOLCHAIN}/bin/${TRIPLE}${ANDROID_NATIVE_API_LEVEL}-clang++)
+set(AR ${TOOLCHAIN}/bin/${TRIPLE}-ar)
+set(RANLIB ${TOOLCHAIN}/bin/${TRIPLE}-ranlib)
+
+# Build OpenSSL
+set(SSL_SRC_DIR ${CMAKE_CURRENT_LIST_DIR}/mapbox-gl-native-curl/openssl)
+set(SSL_BIN_DIR ${CMAKE_CURRENT_BINARY_DIR})
+set(SSL_INCLUDES ${SSL_BIN_DIR}/include)
+file(MAKE_DIRECTORY ${SSL_INCLUDES})
+
+set(SSL_STATIC_LIB ${SSL_BIN_DIR}/lib/libssl.a)
+set(CRYPTO_STATIC_LIB ${SSL_BIN_DIR}/lib/libcrypto.a)
+
+ExternalProject_Add(
+    libssl
+    PREFIX ${SSL_BIN_DIR}
+    SOURCE_DIR ${SSL_SRC_DIR}
+    DOWNLOAD_COMMAND
+    GIT_REPOSITORY https://github.com/openssl/openssl.git
+    GIT_TAG OpenSSL_1_1_1d
+    GIT_SHALLOW true
+    GIT_PROGRESS true
+    CONFIGURE_COMMAND
+        echo
+        "Configuring openssl $<CONFIG>-${ANDROID_ABI}"
+        &&
+        ${CMAKE_COMMAND}
+        -E
+        env
+        ANDROID_NDK_HOME=${ANDROID_NDK_HOME}
+        PATH=${PATH}
+        ${SSL_SRC_DIR}/Configure
+        ${SSL_TARGET_ARCH}
+        no-asm
+        no-shared
+        no-tests
+        no-unit-test
+        zlib
+        -static
+        --prefix=${SSL_BIN_DIR}
+    BUILD_COMMAND
+        echo
+        "Building openssl $<CONFIG>-${ANDROID_ABI}"
+        &&
+        ${CMAKE_COMMAND}
+        -E
+        env
+        ANDROID_NDK_HOME=${ANDROID_NDK_HOME}
+        PATH=${PATH}
+        make
+        -j${NPROC}
+    INSTALL_COMMAND
+        echo
+        "Installing openssl $<CONFIG>-${ANDROID_ABI}"
+        &&
+        make
+        install
+    BUILD_BYPRODUCTS ${SSL_STATIC_LIB} ${CRYPTO_STATIC_LIB}
+)
+
 add_library(
-    mbgl-vendor-curl INTERFACE
+    android-ssl STATIC IMPORTED
 )
+add_dependencies(android-ssl libssl)
+set_target_properties(android-ssl PROPERTIES IMPORTED_LOCATION ${SSL_STATIC_LIB})
+set_target_properties(android-ssl PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${SSL_INCLUDES})
 
-target_link_libraries(
-    mbgl-vendor-curl
-    INTERFACE $<$<PLATFORM_ID:Android>:${CMAKE_CURRENT_LIST_DIR}/curl-android-ios/prebuilt-with-ssl/android/${ANDROID_ABI}/libcurl.a>
+add_library(
+    android-crypto STATIC IMPORTED
+)
+add_dependencies(android-crypto libssl)
+set_target_properties(android-crypto PROPERTIES IMPORTED_LOCATION ${CRYPTO_STATIC_LIB})
+set_target_properties(android-crypto PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${SSL_INCLUDES})
+
+# Build CURL
+set(CURL_DIR ${CMAKE_CURRENT_LIST_DIR}/mapbox-gl-native-curl/curl)
+set(CURL_BIN_DIR ${CMAKE_CURRENT_BINARY_DIR})
+set(CURL_INCLUDES ${CURL_BIN_DIR}/include)
+file(MAKE_DIRECTORY ${CURL_INCLUDES})
+set(CURL_STATIC_LIB ${CURL_BIN_DIR}/lib/libcurl.a)
+
+ExternalProject_Add(
+    libcurl
+    PREFIX ${CURL_BIN_DIR}
+    DEPENDS libssl
+    SOURCE_DIR ${CURL_DIR}
+    DOWNLOAD_COMMAND
+    GIT_REPOSITORY https://github.com/curl/curl.git
+    GIT_TAG curl-7_69_0
+    GIT_SHALLOW true
+    GIT_PROGRESS true
+    UPDATE_COMMAND
+        cd
+        ${CURL_DIR}
+        &&
+        echo
+        "Starting curl $<CONFIG>-${ANDROID_ABI} build"
+        &&
+        ${CURL_DIR}/buildconf
+    CONFIGURE_COMMAND
+        echo
+        "Configuring curl $<CONFIG>-${ANDROID_ABI}"
+        &&
+        CC=${CC}
+        CXX=${CXX}
+        AR=${AR}
+        RANLIB=${RANLIB}
+        ${CURL_DIR}/configure
+        --host=${TRIPLE}
+        --target=${TRIPLE}
+        --with-sysroot=${TOOLCHAIN}/sysroot
+        --with-ssl=${SSL_BIN_DIR}
+        --enable-static
+        --disable-shared
+        --disable-verbose
+        --enable-threaded-resolver
+        --enable-libgcc
+        --enable-ipv6
+        --disable-manual
+        --with-pic
+        --prefix=${CURL_BIN_DIR}
+    BUILD_COMMAND
+        echo
+        "Building curl $<CONFIG>-${ANDROID_ABI}"
+        &&
+        make
+        -j${NPROC}
+    INSTALL_COMMAND
+        echo
+        "Installing curl $<CONFIG>-${ANDROID_ABI}"
+        &&
+        make
+        install
+    BUILD_BYPRODUCTS ${CURL_STATIC_LIB}
 )
 
-target_include_directories(
-    mbgl-vendor-curl SYSTEM
-    INTERFACE ${CMAKE_CURRENT_LIST_DIR}/curl-android-ios/curl/include
+add_library(
+    mbgl-vendor-curl STATIC IMPORTED
+)
+add_dependencies(libcurl libssl)
+add_dependencies(
+    mbgl-vendor-curl
+    libcurl
+    android-ssl
+    android-crypto
 )
+set_target_properties(mbgl-vendor-curl PROPERTIES IMPORTED_LOCATION ${CURL_STATIC_LIB})
+set_target_properties(mbgl-vendor-curl PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${CURL_INCLUDES})
+set_target_properties(mbgl-vendor-curl PROPERTIES INTERFACE_COMPILE_DEFINITIONS CURL_STATICLIB)
+set_target_properties(mbgl-vendor-curl PROPERTIES INTERFACE_LINK_LIBRARIES "-l${SSL_STATIC_LIB} -l${CRYPTO_STATIC_LIB}")