Add conda package

The packaging is done without vcpkg, the dependencies are provided by conda itself.
- Add cmake preset to build conda packages without toolchain
- Add github action to build conda package
- Improve CMakeLists.txt

CMakeLists.txt

@@ -14,18 +14,22 @@ set (CMAKE_CXX_STANDARD 17)
 
 project(khiops-gcs LANGUAGES CXX)
 
-# Find dependencies provided by vcpkg (via vcpkg.cmake)
+# Find dependencies
 find_package(fmt CONFIG REQUIRED)
 find_package(google_cloud_cpp_storage CONFIG REQUIRED)
 find_package(spdlog CONFIG REQUIRED)
 
+# Hide symbols in the shared libraries
+set(CMAKE_CXX_VISIBILITY_PRESET hidden)
+set(CMAKE_VISIBILITY_INLINES_HIDDEN 1)
+
 add_library(khiopsdriver_file_gcs MODULE src/gcsplugin.h src/gcsplugin.cpp)
-set_target_properties(khiopsdriver_file_gcs PROPERTIES LINK_FLAGS_RELEASE -s)
+target_link_options(khiopsdriver_file_gcs PRIVATE $<$<CONFIG:RELEASE>:-s>) # stripping
 target_link_libraries(khiopsdriver_file_gcs PRIVATE google-cloud-cpp::storage spdlog::spdlog)
 
 add_executable(KhiopsPluginTest src/khiopsplugintest.cpp)
 target_link_libraries(KhiopsPluginTest PRIVATE fmt::fmt)
 
 add_executable(drivertest src/drivertest.cpp)
-target_link_libraries(drivertest)
+target_link_libraries(drivertest ${CMAKE_DL_LIBS}) # Link to dl
 

CMakePresets.json

@@ -8,11 +8,18 @@
     "configurePresets": [
         {
             "name": "ninja-multi-vcpkg",
-            "displayName": "Ninja Multi-Config",
+            "displayName": "Ninja Multi-Config with vcpkg",
             "description": "Configure with vcpkg toolchain and generate Ninja project files for all configurations",
             "binaryDir": "${sourceDir}/builds/${presetName}",
             "generator": "Ninja Multi-Config",
             "toolchainFile": "${sourceDir}/vcpkg/scripts/buildsystems/vcpkg.cmake"
+        },
+        {
+            "name": "ninja-multi",
+            "displayName": "Ninja without vcpkg",
+            "description": "Configure Ninja project files for all configurations",
+            "binaryDir": "${sourceDir}/builds/${presetName}",
+            "generator": "Ninja Multi-Config"
         }
     ],
     "buildPresets": [
@@ -31,10 +38,18 @@
             "configuration": "Release"
         },
         {
-            "name": "ninja-vcpkg",
-            "configurePreset": "ninja-multi-vcpkg",
-            "displayName": "Build",
-            "description": "Build with Ninja/vcpkg"
+            "name": "ninja-debug",
+            "configurePreset": "ninja-multi",
+            "displayName": "Build (Debug)",
+            "description": "Build with Ninja",
+            "configuration": "Debug"
+        },
+        {
+            "name": "ninja-release",
+            "configurePreset": "ninja-multi",
+            "displayName": "Build (release)",
+            "description": "Build with Ninja",
+            "configuration": "Release"
         }
     ],
     "testPresets": [
@@ -62,5 +77,4 @@
             ]
         }
     ]
-}
-
+}

conda/build.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# Set-up the shell to behave more like a general-purpose programming language
+set -euo pipefail
+
+# Configure project
+cmake --fresh --preset ninja-multi
+
+# Build 
+cmake --build --preset ninja-release --target khiopsdriver_file_gcs
+
+# Copy binary to conda package
+mkdir -p $PREFIX/bin
+cp ./builds/ninja-multi/Release/libkhiopsdriver_file_gcs.so "$PREFIX/bin/"
+
+
+

conda/meta.yaml

@@ -0,0 +1,34 @@
+package:
+  name: khiops-driver-gcs
+  version: 0.0.1
+
+source:
+  path: ../
+
+build:
+  number: 0
+requirements:
+  build:
+    - cmake
+    - ninja
+    - {{ compiler('cxx') }}
+  host:
+    - google-cloud-cpp
+    - spdlog
+  run:
+    - google-cloud-cpp
+    - spdlog
+
+outputs:
+  - name: khiops-driver-gcs
+    # test:
+    #   commands:
+    #     - MODL -v
+    #     - MODL_Coclustering -v
+
+about:
+  home: https://khiops.org
+  license: BSD+3-clause
+  summary: Khiops driver to access files on Google Cloud Storage
+  doc_url: https://khiops.org
+  dev_url: https://github.com/khiopsml/khiops