Use pixi to build conda packages

Author: dirkvdb

CMakeLists.txt

@@ -37,7 +37,7 @@ if(GDX_IS_TOPLEVEL)
     set(INSTALL_CONFIGDIR ${CMAKE_INSTALL_LIBDIR}/cmake/geodynamix)
 
     project(GeoDynamiX
-        VERSION 0.14.5
+        VERSION 0.14.6
         LANGUAGES C CXX
     )
     set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
@@ -69,10 +69,10 @@ if(GDX_IS_TOPLEVEL)
         set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} /NODEFAULTLIB:MSVCRT /NODEFAULTLIB:LIBCMT")
         set(CMAKE_STATIC_LINKER_FLAGS_DEBUG "${CMAKE_STATIC_LINKER_FLAGS_DEBUG} /NODEFAULTLIB:MSVCRT /NODEFAULTLIB:LIBCMT")
 
-    # Enable faster linking for debug builds
-    # set (CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} /DEBUG:FASTLINK")
-    # set (CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_SHARED_LINKER_FLAGS_DEBUG} /DEBUG:FASTLINK")
-    # set (CMAKE_MODULE_LINKER_FLAGS_DEBUG "${CMAKE_MODULE_LINKER_FLAGS_DEBUG} /DEBUG:FASTLINK")
+        # Enable faster linking for debug builds
+        # set (CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} /DEBUG:FASTLINK")
+        # set (CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_SHARED_LINKER_FLAGS_DEBUG} /DEBUG:FASTLINK")
+        # set (CMAKE_MODULE_LINKER_FLAGS_DEBUG "${CMAKE_MODULE_LINKER_FLAGS_DEBUG} /DEBUG:FASTLINK")
     else()
         add_compile_options(
             -Wall -Wextra -Wpedantic -Wfatal-errors -Wno-unknown-pragmas

algorithms/CMakeLists.txt

@@ -56,7 +56,7 @@ if(TARGET GEOS::geos)
     list(APPEND GDXALGO_PUBLIC_HEADERS include/gdx/algo/polygoncoverage.h)
 endif()
 
-add_library(gdxalgo
+add_library(gdxalgo STATIC
     ${GDXALGO_PUBLIC_HEADERS}
     accuflux.cpp
     reclass.cpp

core/CMakeLists.txt

@@ -115,7 +115,7 @@ if (GDX_ENABLE_SIMD)
     )
 endif ()
 
-add_library(gdxcore
+add_library(gdxcore STATIC
     ${GDXCORE_PUBLIC_HEADERS}
     raster.cpp
 )

deps/infra

@@ -0,0 +1,28 @@
+set export := true
+
+export GIT_COMMIT_HASH := `git rev-parse HEAD`
+
+[windows]
+pixi_build:
+    rm -rf ./.pixi/build
+    rm -rf ./build/conda
+    pixi build --output-dir=./build/conda
+
+# Build conda package using pixi in a clean environment (no nix/devenv pollution)
+[unix]
+pixi_build:
+    #!/usr/bin/env sh
+    echo "Building pixi package in clean environment (excluding nix paths)..."
+    # Remove existing build artifacts safely
+    if [ -d .pixi/build/work ]; then \
+        find .pixi/build/work -mindepth 1 -maxdepth 1 -name "urbclim-*" -exec rm -rf {} + 2>/dev/null || true; \
+    fi
+    # Run pixi build with minimal environment to avoid nix store pollution
+    # We need to keep enough PATH to find pixi and basic tools
+    env -i \
+        HOME="$HOME" \
+        USER="$USER" \
+        TERM="${TERM:-xterm}" \
+        GIT_COMMIT_HASH="$GIT_COMMIT_HASH" \
+        PATH="/run/current-system/sw/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$HOME/.local/bin:$HOME/.pixi/bin" \
+        sh -c 'pixi build --output-dir=./build/conda'

justfile

@@ -0,0 +1,84 @@
+[workspace]
+channels = ["conda-forge"]
+platforms = ["linux-64", "osx-64", "win-64"]
+preview = ["pixi-build"]
+
+[workspace.build-variants]
+python = ["3.12.*", "3.13.*", "3.14.*"]
+
+[dev]
+# make sure the build dependencies of eif are available in all envs
+geodynamix = { path = "." }
+
+[package]
+name = "geodynamix"
+version = "0.14.6"
+
+[package.build]
+backend = { name = "pixi-build-cmake", version = "*", channels = ["https://prefix.dev/conda-forge"] }
+
+[package.build.config]
+compilers = ["c", "cxx"]
+extra-args = [
+    "-DBUILD_TESTING=OFF",
+    "-DBUILD_BINDINGS=ON",
+    "-DBUILD_PYTHON_BINDINGS=ON",
+    "-DCMAKE_IGNORE_PATH=/nix/store",
+    "-DPACKAGE_VERSION_COMMITHASH=$GIT_COMMIT_HASH",
+    "-DnetCDFCxx_DIR=$PREFIX/lib/cmake/netCDF",
+    "-DGDX_ENABLE_OPENMP=OFF",
+    "-DGDX_AVX2=OFF",
+    "-DGDX_ENABLE_SIMD=OFF",
+    "-DGDX_ENABLE_TOOLS=OFF",
+    "-DGDX_ENABLE_TESTS=OFF",
+    "-DGDX_ENABLE_TEST_UTILS=OFF",
+    "-DGDX_PYTHON_BINDINGS=ON",
+    "-DINFRA_ENABLE_TESTS=OFF",
+    "-DGDX_INSTALL_DEVELOPMENT_FILES=OFF"
+]
+
+[package.build.target.win-64.config]
+extra-args = [
+    "-DBUILD_TESTING=OFF",
+    "-DBUILD_BINDINGS=ON",
+    "-DBUILD_PYTHON_BINDINGS=ON",
+    "-DCMAKE_IGNORE_PATH=/nix/store",
+    "-DPACKAGE_VERSION_COMMITHASH=%GIT_COMMIT_HASH%",
+    "-DnetCDFCxx_DIR=$PREFIX/lib/cmake/netCDF",
+    "-DGDX_ENABLE_OPENMP=OFF",
+    "-DGDX_AVX2=OFF",
+    "-DGDX_ENABLE_SIMD=OFF",
+    "-DGDX_ENABLE_TOOLS=OFF",
+    "-DGDX_ENABLE_TESTS=OFF",
+    "-DGDX_ENABLE_TEST_UTILS=OFF",
+    "-DGDX_PYTHON_BINDINGS=ON",
+    "-DINFRA_ENABLE_TESTS=OFF",
+    "-DGDX_INSTALL_DEVELOPMENT_FILES=OFF"
+]
+
+[package.build-dependencies]
+cmake = ">=3.27.0,<4"
+ninja = ">=1.11.0,<2"
+
+[package.host-dependencies]
+python = "*"
+spdlog = ">=1.17.0,<2"
+fmt = ">=12.1.0,<13"
+pybind11 = ">=3.0.1,<4"
+libgdal = ">=3.12.1,<4"
+eigen = ">=3.4.0,<4"
+
+[package.run-dependencies]
+libgdal = ">=3.12.1,<4"
+
+[feature.test.dependencies]
+benchmark = ">=1.9"
+doctest = ">=2.4"
+
+[feature.test.tasks]
+configure = { cmd = "cmake --preset geodynamix-pixi" }
+build_debug = { cmd = "cmake --build --preset geodynamix-pixi-debug", depends-on = ["configure"] }
+build_release = { cmd = "cmake --build --preset geodynamix-pixi-release", depends-on = ["configure"] }
+
+[environments]
+test = ["test"]