CI: build with hidden symbols using Clang (#1675)

Good to be able to do this. No tests as not exposed classes are
accessed in tests.
Examples: export functions from libs to utilize in the common binary

Make boost::json header only in the read lib
Otherwise there are unresolved external symbols when built with
visibility=hidden

Relates-To: MINOR
Signed-off-by: Rustam Gamidov <ext-rustam.gamidov@here.com>

Author: rustam-gamidov-here

.github/workflows/psv_pipelines.yml

@@ -196,6 +196,25 @@ jobs:
       run: scripts/linux/psv/test_psv.sh
       shell: bash
 
+  psv-linux-22-04-clang-hidden-build:
+    name: PSV.Linux.22.04.clang.hidden
+    runs-on: ubuntu-22.04
+    env:
+      BUILD_TYPE: RelWithDebInfo
+      CC: clang-11
+      CXX: clang++-11
+      CXXFLAGS: -Wno-deprecated-copy
+      EXTRA_CMAKE_OPTIONS: -DCMAKE_CXX_VISIBILITY_PRESET=hidden -DOLP_SDK_ENABLE_TESTING=OFF
+    steps:
+    - name: Check out repository
+      uses: actions/checkout@v4
+    - name: Install Ubuntu dependencies
+      run: sudo apt-get update -y && sudo apt-get install clang-11 ccache libcurl4-openssl-dev -y --no-install-recommends --fix-missing
+      shell: bash
+    - name: Compile project on Clang
+      run: scripts/linux/psv/build_psv.sh
+      shell: bash
+
   psv-android-22-04-build:
     name: PSV.Linux.Android.22.04
     runs-on: ubuntu-22.04

examples/CMakeLists.txt

@@ -1,4 +1,4 @@
-# Copyright (C) 2019-2020 HERE Europe B.V.
+# Copyright (C) 2019-2026 HERE Europe B.V.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -81,6 +81,25 @@ else()
         olp-cpp-sdk-authentication
         olp-cpp-sdk-dataservice-read)
 
+    target_compile_definitions(${OLP_SDK_DATASERVICE_READ_EXAMPLE_TARGET}
+        PRIVATE EXAMPLES_LIBRARY)
+    target_compile_definitions(${OLP_SDK_DATASERVICE_WRITE_EXAMPLE_TARGET}
+        PRIVATE EXAMPLES_LIBRARY)
+    target_compile_definitions(${OLP_SDK_DATASERVICE_CACHE_EXAMPLE_TARGET}
+        PRIVATE EXAMPLES_LIBRARY)
+    target_compile_definitions(${OLP_SDK_DATASERVICE_READ_STREAM_LAYER_EXAMPLE_TARGET}
+        PRIVATE EXAMPLES_LIBRARY)
+    if(BUILD_SHARED_LIBS)
+        target_compile_definitions(${OLP_SDK_DATASERVICE_READ_EXAMPLE_TARGET}
+            PUBLIC EXAMPLES_SHARED_LIBRARY)
+        target_compile_definitions(${OLP_SDK_DATASERVICE_WRITE_EXAMPLE_TARGET}
+            PUBLIC EXAMPLES_SHARED_LIBRARY)
+        target_compile_definitions(${OLP_SDK_DATASERVICE_CACHE_EXAMPLE_TARGET}
+            PUBLIC EXAMPLES_SHARED_LIBRARY)
+        target_compile_definitions(${OLP_SDK_DATASERVICE_READ_STREAM_LAYER_EXAMPLE_TARGET}
+            PUBLIC EXAMPLES_SHARED_LIBRARY)
+    endif()
+
     add_executable(${OLP_SDK_DATASERVICE_EXAMPLE_TARGET}
         ./main.cpp
         ./Examples.h

examples/Examples.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2019-2020 HERE Europe B.V.
+ * Copyright (C) 2019-2026 HERE Europe B.V.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,10 +19,21 @@
 
 #pragma once
 
+#include <olp/core/porting/export.h>
+
+#ifdef EXAMPLES_SHARED_LIBRARY
+#ifdef EXAMPLES_LIBRARY
+#define EXAMPLES_API OLP_CPP_SDK_DECL_EXPORT
+#else
+#define EXAMPLES_API OLP_CPP_SDK_DECL_IMPORT
+#endif  // EXAMPLES_LIBRARY
+#else
+#define EXAMPLES_API
+#endif  // EXAMPLES_SHARED_LIBRARY
+
 #include <string>
 
-struct AccessKey
-{
+struct AccessKey {
   std::string id;      // Your here.access.key.id
   std::string secret;  // Your here.access.key.secret
 };

examples/ProtectedCacheExample.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020 HERE Europe B.V.
+ * Copyright (C) 2020-2026 HERE Europe B.V.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,14 +21,19 @@
 
 #include "Examples.h"
 
+#include <string>
+
 /**
-  * @brief Dataservice cache example.
+ * @brief Dataservice cache example.
  *
- * Gets the partition data using the HERE Open Location Platform with mutable cache. 
- * Makes the mutable cache path
- * protected. Reads the same data from the protected cache.
+ * Gets the partition data using the HERE Open Location Platform with mutable
+ * cache. Makes the mutable cache path protected. Reads the same data from the
+ * protected cache.
  * @param access_key Your access key ID and access key secret.
- * @param The HERE Resource Name (HRN) of the catalog from which you want to read data.
+ * @param The HERE Resource Name (HRN) of the catalog from which you want to
+ * read data.
  * @return 0 if data was published successfully.
  */
-int RunExampleProtectedCache(const AccessKey& access_key, const std::string& catalog);
+EXAMPLES_API
+int RunExampleProtectedCache(const AccessKey& access_key,
+                             const std::string& catalog);

examples/ReadExample.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2019-2020 HERE Europe B.V.
+ * Copyright (C) 2019-2026 HERE Europe B.V.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,6 +22,7 @@
 #include "Examples.h"
 
 #include <olp/core/porting/optional.h>
+#include <string>
 
 /**
  * @brief Dataservice read example. Authenticate client using access key id and
@@ -33,6 +34,7 @@
  * @param catalog_version The desired version of the catalog.
  * @return result of publish data(0 - if succeed)
  */
+EXAMPLES_API
 int RunExampleRead(const AccessKey& access_key, const std::string& catalog,
                    const olp::porting::optional<int64_t>& catalog_version =
                        olp::porting::none);

examples/StreamLayerReadExample.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2019-2020 HERE Europe B.V.
+ * Copyright (C) 2019-2026 HERE Europe B.V.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,6 +22,7 @@
 #include "Examples.h"
 
 #include <olp/dataservice/read/SubscribeRequest.h>
+#include <string>
 
 /**
  * @brief Dataservice read from stream layer example. Authenticate client using
@@ -34,6 +35,7 @@
  * @param subscription_mode The type of client subscription.
  * @return 0 on success, -1 otherwise.
  */
+EXAMPLES_API
 int RunStreamLayerExampleRead(
     const AccessKey& access_key, const std::string& catalog,
     const std::string& layer_id,

examples/WriteExample.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2019-2020 HERE Europe B.V.
+ * Copyright (C) 2019-2026 HERE Europe B.V.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,13 +21,18 @@
 
 #include "Examples.h"
 
+#include <string>
+
 /**
  * @brief Dataservice write example. Authenticate client using access key id and
  * secret. Publish data to some layer in HRN catalog.
  * @param access_key Your access key ID and access key secret.
- * @param The HERE Resource Name (HRN) of the catalog to which you want to publish data.
- * @param layer_id The layer ID of the catalog to which you want to publish data.
+ * @param The HERE Resource Name (HRN) of the catalog to which you want to
+ * publish data.
+ * @param layer_id The layer ID of the catalog to which you want to publish
+ * data.
  * @return result of publish data(0 - if succeed)
  */
+EXAMPLES_API
 int RunExampleWrite(const AccessKey& access_key, const std::string& catalog,
                     const std::string& layer_id);

olp-cpp-sdk-dataservice-read/src/utils/BoostJsonSrc.cpp

@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2026 HERE Europe B.V.
+ *
+ * Licensed 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * License-Filename: LICENSE
+ */
+
+#include <boost/json/src.hpp>

scripts/linux/psv/build_psv.sh

@@ -1,6 +1,6 @@
 #!/bin/bash -ex
 #
-# Copyright (C) 2019-2020 HERE Europe B.V.
+# Copyright (C) 2019-2026 HERE Europe B.V.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -30,6 +30,7 @@ cmake -DCMAKE_BUILD_TYPE=$BUILD_TYPE \
     -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
     -DOLP_SDK_BUILD_EXAMPLES=ON \
     -DBUILD_SHARED_LIBS=ON \
+    $EXTRA_CMAKE_OPTIONS \
     ..
 
 make -j$(nproc)