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‎.clang-format‎

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---
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Language: Cpp
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BasedOnStyle: LLVM
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IndentWidth: 2
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ColumnLimit: 80

‎.clang-format-ignore‎

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src/detail/third_party/

‎.clang-tidy‎

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Checks: "-*,\
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bugprone-*,
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clang-analyzer-*,
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modernize-*,
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performance-*,
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portability-*,
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readability-identifier-naming,
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misc-include-cleaner,
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-bugprone-easily-swappable-parameters,
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-bugprone-exception-escape,
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-modernize-avoid-c-arrays,
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-clang-analyzer-security.*,
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-clang-analyzer-optin.*"
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WarningsAsErrors: ""
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FormatStyle: file
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HeaderFilterRegex: "^(?!.*third_party).*"
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CheckOptions:
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- key: readability-identifier-naming.ClassCase
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value: CamelCase
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- key: readability-identifier-naming.StructCase
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value: CamelCase
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- key: readability-identifier-naming.FunctionCase
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value: camelBack
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- key: readability-identifier-naming.VariableCase
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value: camelBack
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- key: readability-identifier-naming.ParameterCase
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value: camelBack
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- key: readability-identifier-naming.MemberCase
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value: camelBack
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- key: readability-identifier-naming.PrivateMemberPrefix
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value: _
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- key: readability-identifier-naming.GlobalConstantCase
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value: UPPER_CASE
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- key: readability-identifier-naming.NamespaceCase
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value: camelBack
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- key: readability-identifier-naming.EnumCase
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value: CamelCase
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- key: readability-identifier-naming.EnumConstantCase
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value: UPPER_CASE
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- key: misc-include-cleaner.IgnoreHeaders
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value: bits/.*;signal.h;stdio.h;unistd.h;arpa/inet.h;netinet/in.h;sys/socket.h;sys/types.h;sys/wait.h;ifaddrs.h;fcntl.h;filesystem;nlohmann/json_fwd.hpp;nlohmann/json.hpp;httplib.h;stdlib.h;math.h;

‎.github/actions/install-dependencies/action.yml‎

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name: "Install System Dependencies"
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description: "Install common system dependencies for plotly.cpp builds"
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inputs:
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extra-packages:
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description: "Additional packages to install (space-separated)"
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required: false
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default: ""
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runs:
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using: "composite"
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steps:
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- name: Install base dependencies
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shell: bash
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run: |
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sudo apt-get update
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sudo apt-get install -y \
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build-essential \
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cmake \
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pkg-config \
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nlohmann-json3-dev \
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libgtest-dev \
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libgoogle-glog-dev \
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libunwind-dev \
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libboost-dev \
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libboost-system-dev
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- name: Install extra packages
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if: inputs.extra-packages != ''
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shell: bash
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run: |
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sudo apt-get install -y ${{ inputs.extra-packages }}

‎.github/actions/setup-clang/action.yml‎

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name: "Setup Clang"
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description: "Install and configure Clang compiler"
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inputs:
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clang-version:
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description: "Clang version to install (20, 21)"
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required: false
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default: "20"
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runs:
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using: "composite"
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steps:
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- name: Install and setup clang
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shell: bash
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run: |
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# Determine Ubuntu codename
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UBUNTU_CODENAME=$(lsb_release -cs)
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# Add LLVM repository key
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wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | sudo tee /etc/apt/trusted.gpg.d/llvm.asc
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# Install specific clang version
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CLANG_VERSION="${{ inputs.clang-version }}"
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echo "deb http://apt.llvm.org/${UBUNTU_CODENAME}/ llvm-toolchain-${UBUNTU_CODENAME}-${CLANG_VERSION} main" | sudo tee /etc/apt/sources.list.d/llvm.list
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sudo apt-get update
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sudo apt-get install -y clang-${CLANG_VERSION} clang-format-${CLANG_VERSION} clang-tidy-${CLANG_VERSION}

‎.github/workflows/ci.yml‎

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name: CI
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on:
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push:
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branches: [main, master]
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pull_request:
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branches: [main, master]
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workflow_dispatch:
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env:
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CTEST_TIMEOUT: 120
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CLANG_VERSION: "20"
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jobs:
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build-and-test:
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name: Build & Test (${{ matrix.os }}, C++${{ matrix.cxx_standard }})
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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, ubuntu-24.04]
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cxx_standard: [17, 20]
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Install dependencies
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uses: ./.github/actions/install-dependencies
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- name: Setup Clang
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uses: ./.github/actions/setup-clang
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with:
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clang-version: ${{ env.CLANG_VERSION }}
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- name: Build
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run: |
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CMAKE_CXX_STANDARD=${{ matrix.cxx_standard }} \
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CMAKE_C_COMPILER=clang-${{ env.CLANG_VERSION }} \
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CMAKE_CXX_COMPILER=clang++-${{ env.CLANG_VERSION }} \
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make debug
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- name: Run tests
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run: |
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cd ${{github.workspace}}/build
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xvfb-run -a --server-args="-screen 0 1024x768x24 -ac +extension GLX +render -noreset" ctest --output-on-failure --verbose --timeout ${{ env.CTEST_TIMEOUT }}
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- name: Upload test results
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if: always()
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uses: actions/upload-artifact@v4
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with:
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name: test-results-${{ matrix.os }}-cpp${{ matrix.cxx_standard }}
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path: |
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${{github.workspace}}/build/Testing/
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${{github.workspace}}/build/test/
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sanitizer-analysis:
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name: Sanitizer Analysis (${{ matrix.sanitizer }})
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runs-on: ubuntu-24.04
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strategy:
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fail-fast: false
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matrix:
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sanitizer: [asan, tsan]
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Install dependencies
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uses: ./.github/actions/install-dependencies
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- name: Setup Clang
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uses: ./.github/actions/setup-clang
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with:
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clang-version: ${{ env.CLANG_VERSION }}
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- name: Build with sanitizer
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run: |
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CMAKE_C_COMPILER=clang-${{ env.CLANG_VERSION }} \
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CMAKE_CXX_COMPILER=clang++-${{ env.CLANG_VERSION }} \
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make ${{ matrix.sanitizer }}
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- name: Run tests with sanitizer
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run: |
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build_dir="build-${{ matrix.sanitizer }}"
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cd $build_dir
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# Set sanitizer options
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if [ "${{ matrix.sanitizer }}" = "asan" ]; then
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export ASAN_OPTIONS="detect_leaks=1:abort_on_error=1"
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elif [ "${{ matrix.sanitizer }}" = "tsan" ]; then
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export TSAN_OPTIONS="abort_on_error=1"
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fi
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xvfb-run -a --server-args="-screen 0 1024x768x24 -ac +extension GLX +render -noreset" ctest --output-on-failure --verbose --timeout ${{ env.CTEST_TIMEOUT }}
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- name: Upload sanitizer results
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if: always()
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uses: actions/upload-artifact@v4
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with:
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name: sanitizer-results-${{ matrix.sanitizer }}
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path: |
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build-${{ matrix.sanitizer }}/Testing/
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build-${{ matrix.sanitizer }}/test/
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coverage-analysis:
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name: Coverage Analysis
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runs-on: ubuntu-22.04
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Install dependencies
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uses: ./.github/actions/install-dependencies
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- name: Generate coverage report
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run: |
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xvfb-run -a --server-args="-screen 0 1024x768x24 -ac +extension GLX +render -noreset" make coverage
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- name: Upload coverage to Codecov
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uses: codecov/codecov-action@v4
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with:
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file: ./build-coverage/coverage_filtered.info
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fail_ci_if_error: true
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- name: Upload HTML coverage reports
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uses: actions/upload-artifact@v4
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with:
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name: coverage-report
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path: |
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build-coverage/coverage_filtered.info
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coverage/

‎.gitignore‎

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/build*
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.vscode
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.cursor
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.claude
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coverage

‎.pre-commit-config.yaml‎

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repos:
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- repo: https://github.com/pre-commit/pre-commit-hooks
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rev: v4.5.0
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hooks:
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- id: trailing-whitespace
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exclude: ^(webapp/|src/detail/third_party/)
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- id: end-of-file-fixer
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exclude: ^(webapp/|src/detail/third_party/)
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- id: check-yaml
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exclude: ^(webapp/|src/detail/third_party/)
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- repo: https://github.com/pre-commit/mirrors-clang-format
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rev: v20.1.8
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hooks:
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- id: clang-format
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files: \.(cpp|hpp|c|h|cc|cxx)$
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exclude: ^(build/|build-coverage/|\.git/|webapp/|src/detail/third_party/)
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- repo: https://github.com/cheshirekow/cmake-format-precommit
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rev: v0.6.13
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hooks:
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- id: cmake-format
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args: [--in-place]
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files: \.(cmake|CMakeLists\.txt)$
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exclude: ^(webapp/|src/detail/third_party/)

‎CMakeLists.txt‎

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cmake_minimum_required(VERSION 3.14) # Required for stable FetchContent
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project(plotly-cpp VERSION 0.1.0 LANGUAGES CXX)
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enable_testing()
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# Include cmake modules
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include(cmake/InstallConfig.cmake)
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include(cmake/PackageConfig.cmake)
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include(FetchContent)
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# Configure version header
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configure_file(
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"${CMAKE_CURRENT_SOURCE_DIR}/include/plotly/version.hpp.in"
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"${CMAKE_CURRENT_BINARY_DIR}/include/plotly/version.hpp"
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@ONLY
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)
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# Build options
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option(PLOTLY_CPP_BUILD_GALLERY "Build example gallery applications" OFF)
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option(PLOTLY_CPP_BUILD_TESTS "Build test suite" OFF)
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# Display configuration summary
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message(STATUS "plotly.cpp configuration:")
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message(STATUS " Build gallery: ${PLOTLY_CPP_BUILD_GALLERY}")
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message(STATUS " Build tests: ${PLOTLY_CPP_BUILD_TESTS}")
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find_package(nlohmann_json QUIET)
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if(NOT nlohmann_json_FOUND)
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FetchContent_Declare(
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nlohmann_json
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GIT_REPOSITORY https://github.com/nlohmann/json.git
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GIT_TAG v3.11.3
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GIT_SHALLOW TRUE
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)
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FetchContent_MakeAvailable(nlohmann_json)
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message(STATUS "Using FetchContent for nlohmann_json")
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endif()
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# Define source files explicitly (better than GLOB for reproducibility)
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set(PLOTLY_SOURCES
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src/plotly.cpp
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src/logger.cpp
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src/detail/browser.cpp
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src/detail/http_server.cpp
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src/detail/json_rpc.cpp
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src/detail/uuid.cpp
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src/detail/websockets_client.cpp
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src/detail/websockets_endpoint.cpp
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src/detail/websockets_server.cpp
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)
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# Function to configure common target settings (eliminates duplication)
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function(configure_plotly_target target_name)
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# Set webapp path for both build and install contexts
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set(WEBAPP_PATH_BUILD "${CMAKE_CURRENT_SOURCE_DIR}/webapp/")
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set(WEBAPP_PATH_INSTALL "/usr/share/plotly/webapp/")
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target_compile_definitions(${target_name}
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PUBLIC
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PLOTLY_CPP_WEBAPP_PATH="$<BUILD_INTERFACE:${WEBAPP_PATH_BUILD}>$<INSTALL_INTERFACE:${WEBAPP_PATH_INSTALL}>"
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PRIVATE
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CPPHTTPLIB_THREAD_POOL_COUNT=3
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)
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target_link_libraries(${target_name}
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PRIVATE
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pthread
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PUBLIC
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nlohmann_json::nlohmann_json
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)
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target_include_directories(${target_name}
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PRIVATE
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${CMAKE_CURRENT_SOURCE_DIR}/include
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${CMAKE_CURRENT_SOURCE_DIR}/src
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${CMAKE_CURRENT_SOURCE_DIR}/src/detail/third_party
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PUBLIC
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$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
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$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/include>
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$<INSTALL_INTERFACE:include>
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)
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# Configure compiler settings
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endfunction()
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# Create libraries
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add_library(plotly-cpp SHARED ${PLOTLY_SOURCES})
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add_library(plotly-cpp-static STATIC ${PLOTLY_SOURCES})
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# Apply common configuration
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configure_plotly_target(plotly-cpp)
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configure_plotly_target(plotly-cpp-static)
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# Create alias targets for modern CMake usage
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add_library(plotly-cpp::plotly-cpp ALIAS plotly-cpp)
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add_library(plotly-cpp::plotly-cpp-static ALIAS plotly-cpp-static)
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if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/gallery" AND PLOTLY_CPP_BUILD_GALLERY)
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add_subdirectory(gallery)
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endif()
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# Add tests subdirectory
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if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/test" AND PLOTLY_CPP_BUILD_TESTS)
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add_subdirectory(test)
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endif()
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# Configure installation
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configure_plotly_installation()
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# Include CPack for package generation
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include(CPack)

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