add libavrocpp_s

This closes #17

The avro_unittest is added for testing if libavrocpp works, once
we supported Manifest, this should be removed.

Signed-off-by: Junwang Zhao <zhjwpku@gmail.com>

Author: zhjwpku

.github/workflows/test.yml

@@ -80,6 +80,10 @@ jobs:
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           fetch-depth: 0
+      - name: Install ZLIB
+        shell: cmd
+        run: |
+          powershell -Command "(Invoke-WebRequest -Uri https://git.io/JnHTY -OutFile install_zlib.bat)"; ./install_zlib.bat; del install_zlib.bat
       - name: Build Iceberg
         shell: cmd
         run: |

cmake_modules/IcebergThirdpartyToolchain.cmake

@@ -126,3 +126,44 @@ endfunction()
 if(ICEBERG_ARROW)
   resolve_arrow_dependency()
 endif()
+
+# ----------------------------------------------------------------------
+# Apache Avro
+
+function(resolve_avro_dependency)
+  prepare_fetchcontent()
+
+  set(AVRO_USE_BOOST
+      OFF
+      CACHE BOOL "" FORCE)
+
+  set(AVRO_BUILD_EXECUTABLES
+      OFF
+      CACHE BOOL "" FORCE)
+
+  set(AVRO_BUILD_TESTS
+      OFF
+      CACHE BOOL "" FORCE)
+
+  fetchcontent_declare(Avro
+                       ${FC_DECLARE_COMMON_OPTIONS}
+                       GIT_REPOSITORY https://github.com/apache/avro.git
+                       GIT_TAG 1144cb7322bab4cd1c8bf330a9c504a0d4252b56
+                       SOURCE_SUBDIR
+                       lang/c++
+                       FIND_PACKAGE_ARGS
+                       NAMES
+                       Avro
+                       CONFIG)
+
+  fetchcontent_makeavailable(Avro)
+
+  if(avro_SOURCE_DIR)
+    if(NOT TARGET Avro::avro_static)
+      add_library(Avro::avro_static INTERFACE IMPORTED)
+      target_link_libraries(Avro::avro_static INTERFACE avrocpp_s)
+    endif()
+  endif()
+endfunction()
+
+resolve_avro_dependency()

src/iceberg/CMakeLists.txt

@@ -17,11 +17,16 @@
 
 set(ICEBERG_SOURCES demo_table.cc)
 
+set(ICEBERG_AVRO_STATIC_BUILD_LIBS)
+list(APPEND ICEBERG_AVRO_STATIC_BUILD_LIBS Avro::avro_static)
+
 add_iceberg_lib(iceberg
                 SOURCES
                 ${ICEBERG_SOURCES}
                 PRIVATE_INCLUDES
-                ${ICEBERG_INCLUDES})
+                ${ICEBERG_INCLUDES}
+                STATIC_LINK_LIBS
+                ${ICEBERG_AVRO_STATIC_BUILD_LIBS})
 
 iceberg_install_all_headers(iceberg)
 

test/core/CMakeLists.txt

@@ -20,3 +20,9 @@ target_sources(core_unittest PRIVATE core_unittest.cc)
 target_link_libraries(core_unittest PRIVATE iceberg_static GTest::gtest_main)
 target_include_directories(core_unittest PRIVATE "${ICEBERG_INCLUDES}")
 add_test(NAME core_unittest COMMAND core_unittest)
+
+add_executable(avro_unittest)
+target_sources(avro_unittest PRIVATE avro_unittest.cc)
+target_link_libraries(avro_unittest PRIVATE Avro::avro_static GTest::gtest_main)
+target_include_directories(avro_unittest PRIVATE "${ICEBERG_INCLUDES}")
+add_test(NAME avro_unittest COMMAND avro_unittest)

test/core/avro_unittest.cc

@@ -0,0 +1,58 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include <gtest/gtest.h>
+
+#include "avro/Compiler.hh"
+#include "avro/ValidSchema.hh"
+
+TEST(TableTest, TestTableCons) {
+  std::string input =
+      "{\n\
+    \"type\": \"record\",\n\
+    \"name\": \"testrecord\",\n\
+    \"fields\": [\n\
+        {\n\
+            \"name\": \"testbytes\",\n\
+            \"type\": \"bytes\",\n\
+            \"default\": \"\"\n\
+        }\n\
+    ]\n\
+}\n\
+";
+  std::string expected =
+      "{\n\
+    \"type\": \"record\",\n\
+    \"name\": \"testrecord\",\n\
+    \"fields\": [\n\
+        {\n\
+            \"name\": \"testbytes\",\n\
+            \"type\": \"bytes\",\n\
+            \"default\": \"\"\n\
+        }\n\
+    ]\n\
+}\n\
+";
+
+  avro::ValidSchema schema = avro::compileJsonSchemaFromString(input);
+  std::ostringstream actual;
+  schema.toJson(actual);
+
+  EXPECT_EQ(actual.str(), expected);
+}