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‎.github/workflows/basic_build.yml‎

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name: Basic Build
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run-name: "[${{ github.actor }}]: ${{ github.event_name }} to ${{ github.ref_name }}"
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on: [push]
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jobs:
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build-ubuntu-22:
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runs-on: [self-hosted, linux]
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container: ecpe4s/ubuntu22.04-runner-x86_64:2023-01-01
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steps:
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- name: Install build tools
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run: |
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apt-get update
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apt-get -y install cmake ninja-build
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- name: Record toolchain info
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run: |
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git --version
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gcc --version
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g++ --version
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gfortran --version
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python3 --version
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ninja --version
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cmake --version
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- name: Check out CEA
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uses: actions/checkout@v3
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- name: Install Python dependencies
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run: |
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python3 -m pip install --upgrade pip
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python3 -m pip install numpy cython
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- name: Build CEA in developer mode
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run: |
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scripts/develop.sh -G Ninja
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- name: Run test harness
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run: |
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ctest --output-on-failure --test-dir build-dev

‎.github/workflows/publish_wheels.yml‎

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name: Build and Publish Wheels
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on:
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pull_request:
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push:
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tags:
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- "v*"
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jobs:
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build-wheels:
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name: Wheels (${{ matrix.os }})
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runs-on: ${{ matrix.os }}
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strategy:
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fail-fast: false
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matrix:
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os: [ubuntu-22.04, macos-13, macos-14, windows-2022]
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steps:
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- name: Check out CEA
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uses: actions/checkout@v4
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with:
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submodules: recursive
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- name: Set up Python
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uses: actions/setup-python@v5
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with:
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python-version: "3.12"
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- name: Install build tools (Linux)
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if: runner.os == 'Linux'
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run: |
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python -m pip install --upgrade pip
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python -m pip install cibuildwheel build
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- name: Install build tools (macOS)
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if: runner.os == 'macOS'
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run: |
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python -m pip install --upgrade pip
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python -m pip install cibuildwheel build
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- name: Install build tools (Windows)
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if: runner.os == 'Windows'
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run: |
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python -m pip install --upgrade pip
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python -m pip install cibuildwheel build
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- name: Set up MSYS2 (Windows gfortran)
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if: runner.os == 'Windows'
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uses: msys2/setup-msys2@v2
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with:
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update: true
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install: >-
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mingw-w64-x86_64-gcc-fortran
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mingw-w64-x86_64-cmake
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mingw-w64-x86_64-ninja
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- name: Build wheels
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env:
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CIBW_BUILD: "cp311-* cp312-* cp313-*"
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CIBW_SKIP: "*-musllinux_*"
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CIBW_ARCHS_LINUX: "x86_64"
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CIBW_ARCHS_MACOS: "x86_64 arm64"
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CIBW_ARCHS_WINDOWS: "AMD64"
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CIBW_BEFORE_ALL_LINUX: "yum -y install gcc-gfortran"
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CIBW_BEFORE_ALL_MACOS: "brew install gcc"
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CIBW_ENVIRONMENT_WINDOWS: "PATH=C:\\\\msys64\\\\mingw64\\\\bin;${PATH} FC=gfortran CC=gcc CXX=g++"
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CMAKE_ARGS: "-DCEA_BUILD_TESTING=OFF"
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run: |
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cibuildwheel --output-dir dist
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- name: Build sdist
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if: runner.os == 'Linux'
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run: |
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python -m build --sdist --outdir dist
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- name: Upload artifacts
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uses: actions/upload-artifact@v4
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with:
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name: dist-${{ matrix.os }}
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path: dist/*
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publish:
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name: Publish to PyPI
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needs: build-wheels
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runs-on: ubuntu-22.04
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if: startsWith(github.ref, 'refs/tags/v')
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steps:
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- name: Download artifacts
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uses: actions/download-artifact@v4
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with:
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path: dist
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merge-multiple: true
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- name: Publish to PyPI
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uses: pypa/gh-action-pypi-publish@release/v1
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with:
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packages-dir: dist
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password: ${{ secrets.PYPI_API_TOKEN }}

‎.gitignore‎

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build*
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dist*
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docs/_build/
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docs/doctrees/
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docs/doxygen/
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docs/html/
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docs/source/_build/
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docs/*.aux
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docs/*.log
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extern/gfe
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extern/install
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*.swp
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*.DS_Store
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*.egg-info/
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*CMakeCache.txt
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*.out
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*.csv
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*.xlsx
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*.bat
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!sampleThe/*.inp
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!test/main_interface/*.inp
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!test/main_interface/reference_output/*.out
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__pycache__/
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*.py[cod]
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*$py.class
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source/bind/excel/*.dylib
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source/bind/excel/*.so
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source/bind/excel/*.dll
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source/bind/excel/~$*.xlsm
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source/bind/excel/*.lib
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source/bind/python/samples

‎AGENTS.md‎

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# AGENTS
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This repository is a scientific computing library (CEA). Follow these rules:
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- Do NOT modify `thermo.inp` or `trans.inp` unless explicitly instructed.
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- Numerical correctness is paramount; preserve bitwise results and scientific behavior.
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- Avoid algorithmic changes unless explicitly requested.
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- Prefer clarity over cleverness or micro-optimizations.
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- Keep changes small and focused; avoid drive-by formatting or whitespace churn.
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- Maintain backward compatibility for the legacy user base.
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- If numerical behavior might change, call it out and add validation or tests when possible.
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- Respect layer boundaries: Fortran core in `source/`, C bindings in `source/bind/c/`,
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Python bindings in `source/bind/python/`.

‎CMakeLists.txt‎

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cmake_minimum_required(VERSION 3.19)
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set(CMAKE_DISABLE_SOURCE_CHANGES ON)
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set(CMAKE_DISABLE_IN_SOURCE_BUILD ON)
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project(CEA
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VERSION 3.0.0
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LANGUAGES Fortran
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)
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list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
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include(GNUInstallDirs)
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include(cea_utilities)
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#-----------------------------------------------------------------------
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# Configuration
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#-----------------------------------------------------------------------
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# Establish if we are part of a bigger project
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if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
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set(PROJECT_IS_TOP_LEVEL TRUE)
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else()
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set(PROJECT_IS_TOP_LEVEL FALSE)
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endif()
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if(PROJECT_IS_TOP_LEVEL)
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# Default Install Path: Local install in current build dir
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if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
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set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/install"
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CACHE PATH "CEA installation directory"
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FORCE)
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set(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT FALSE)
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message(STATUS "Setting install path to '${CMAKE_INSTALL_PREFIX}' since none specified.")
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endif()
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# Default Build Type: Standard release build
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if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
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set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
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set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
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"Debug" "Release" "MinSizeRel" "RelWithDebInfo")
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message(STATUS "Setting build type to 'Release' since none specified.")
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endif()
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endif()
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# Testing
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option(CEA_BUILD_TESTING "Build test harness for CEA" ${PROJECT_IS_TOP_LEVEL})
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if(CEA_BUILD_TESTING)
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find_package(PFUNIT REQUIRED)
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include(CTest)
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endif()
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set(CMAKE_POSITION_INDEPENDENT_CODE ON)
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# change some build systems on windows
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if(WIN32)
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# find and alternative to 'ar' archive utility
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find_program(AR_EXECUTABLE NAMES ar)
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if(AR_EXECUTABLE)
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message(STATUS "Found archive utility: ${AR_EXECUTABLE}")
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set(CMAKE_AR ${AR_EXECUTABLE} CACHE FILEPATH "Path to a program." FORCE)
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else()
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find_program(AR_EXECUTABLE NAMES gcc-ar)
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if(AR_EXECUTABLE)
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message(STATUS "Found archive utility: ${AR_EXECUTABLE}")
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set(CMAKE_AR ${AR_EXECUTABLE} CACHE FILEPATH "Path to a program." FORCE)
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else()
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message(WARNING "Archive utility not found.")
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endif()
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endif()
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endif()
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#-----------------------------------------------------------------------
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# Targets
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#-----------------------------------------------------------------------
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add_subdirectory(extern/fbasics)
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add_subdirectory(source)
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# Build the thermodynamic properties database
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#configure_file(src/thermo.inp thermo.inp COPYONLY)
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#add_custom_target(thermo.lib ALL
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# COMMAND cea thermo >/dev/null
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# BYPRODUCTS thermo.lib thermo.out
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# DEPENDS cea
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#)
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# Build the transport properties database
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#configure_file(src/trans.inp trans.inp COPYONLY)
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#add_custom_target(trans.lib ALL
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# COMMAND cea trans >/dev/null
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# BYPRODUCTS trans.lib trans.out
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# DEPENDS cea
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#)
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#-----------------------------------------------------------------------
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# Installation
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#-----------------------------------------------------------------------
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install(
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FILES data/thermo.lib data/trans.lib
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DESTINATION ${CMAKE_INSTALL_PREFIX}/data
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)
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install(EXPORT cea-config
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DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/cea
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NAMESPACE cea::
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)

‎CMakePresets.json‎

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{
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"version": 1,
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"cmakeMinimumRequired": {
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"major": 3,
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"minor": 19,
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"patch": 0
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},
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"configurePresets": [
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{
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"name": "dev",
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"inherits": "gnu",
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"displayName": "Sofware Development Config (GNU)",
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"description": "Default configuration for software development with gfortran.",
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"binaryDir": "build-dev",
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"cacheVariables": {
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"CMAKE_BUILD_TYPE": "Debug",
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"CEA_ENABLE_BIND_C": "TRUE",
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"CEA_ENABLE_BIND_PYTHON": "TRUE",
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"CEA_ENABLE_BIND_MATLAB": "TRUE",
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"CMAKE_Fortran_FLAGS_DEBUG": "-g -fno_underscoring -O0 -Wall -Wextra -Wpedantic -Wcharacter-truncation -Wno-maybe-uninitialized -Werror=conversion -fcheck=all -fbacktrace"
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}
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},
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{
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"name": "dev-intel",
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"inherits": "intel",
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"displayName": "Sofware Development Config (Intel)",
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"description": "Default configuration for software development with ifort.",
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"binaryDir": "build-dev-intel",
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"cacheVariables": {
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"CMAKE_BUILD_TYPE": "Debug",
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"CEA_ENABLE_BIND_C": "TRUE",
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"CEA_ENABLE_BIND_PYTHON": "TRUE",
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"CMAKE_Fortran_FLAGS_DEBUG": "-g -O0 -warn all -check all -traceback -fpe0"
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}
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},
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{
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"name": "core",
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"inherits": "gnu",
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"displayName": "Core (Fortran only)",
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"description": "Minimal Fortran-only build without Python bindings.",
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"binaryDir": "build-core",
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"cacheVariables": {
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"CMAKE_BUILD_TYPE": "Release",
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"CEA_ENABLE_BIND_C": "FALSE",
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"CEA_ENABLE_BIND_CXX": "FALSE",
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"CEA_ENABLE_BIND_PYTHON": "FALSE",
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"CEA_ENABLE_BIND_MATLAB": "FALSE",
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"CEA_ENABLE_BIND_EXCEL": "FALSE"
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}
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},
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{
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"name": "core-c",
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"inherits": "gnu",
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"displayName": "Core (Fortran + C)",
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"description": "Minimal Fortran + C build without Python bindings.",
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"binaryDir": "build-core-c",
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"cacheVariables": {
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"CMAKE_BUILD_TYPE": "Release",
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"CEA_ENABLE_BIND_C": "TRUE",
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"CEA_ENABLE_BIND_CXX": "FALSE",
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"CEA_ENABLE_BIND_PYTHON": "FALSE",
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"CEA_ENABLE_BIND_MATLAB": "FALSE",
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"CEA_ENABLE_BIND_EXCEL": "FALSE"
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}
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},
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{
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"name": "gnu",
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"displayName": "Baseline GNU/GFortran Config",
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"description": "Default configuration for GNU-like compiliers.",
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"binaryDir": "build-gnu",
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"generator": "Unix Makefiles",
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"cacheVariables": {
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"CMAKE_C_COMPILER": "gcc",
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"CMAKE_CXX_COMPILER": "g++",
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"CMAKE_Fortran_COMPILER": "gfortran",
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"CMAKE_Fortran_FLAGS": "-std=f2008 -fno_underscoring -fimplicit-none -ffree-line-length-none"
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}
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},
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{
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"name": "intel",
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"displayName": "Baseline Intel/ifort Config",
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"description": "Default configuration for the ifort compilier.",
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"binaryDir": "build-intel",
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"generator": "Unix Makefiles",
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"cacheVariables": {
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"CMAKE_C_COMPILER": "icc",
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"CMAKE_CXX_COMPILER": "icpc",
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"CMAKE_Fortran_COMPILER": "ifort",
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"CMAKE_Fortran_FLAGS": "-std08"
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}
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}
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]
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}

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