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feat: Add AppImage build variants and CI workflow (#1348)
Rewrites the AppImage build script to support three build variants matching the Docker build options: - minimal: Basic CCExtractor without OCR (smallest size) - ocr: CCExtractor with OCR support (default) - hardsubx: CCExtractor with burned-in subtitle extraction Changes to build_appimage.sh: - Add BUILD_TYPE environment variable to select variant - Fix CMake options (was incorrectly using make flags) - Bundle tessdata for OCR builds with wrapper script - Create proper desktop file and icon handling - Improve error handling and cleanup New GitHub Actions workflow (build_appimage.yml): - Builds all three variants on release - Uploads AppImages as release assets - Can be manually triggered for specific variants - Caches GPAC build for faster CI runs Usage: ./build_appimage.sh # Builds 'ocr' variant BUILD_TYPE=minimal ./build_appimage.sh BUILD_TYPE=hardsubx ./build_appimage.sh Closes #1348 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
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‎.github/workflows/build_appimage.yml‎

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name: Build Linux AppImage
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on:
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# Build on releases
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release:
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types: [published]
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# Allow manual trigger
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workflow_dispatch:
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inputs:
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build_type:
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description: 'Build type (all, minimal, ocr, hardsubx)'
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required: false
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default: 'all'
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# Build on pushes to workflow file for testing
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push:
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paths:
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- '.github/workflows/build_appimage.yml'
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- 'linux/build_appimage.sh'
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jobs:
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build-appimage:
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runs-on: ubuntu-22.04
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strategy:
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fail-fast: false
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matrix:
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build_type: [minimal, ocr, hardsubx]
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steps:
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- name: Check if should build this variant
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id: should_build
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run: |
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if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
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INPUT_TYPE="${{ github.event.inputs.build_type }}"
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if [ "$INPUT_TYPE" = "all" ] || [ "$INPUT_TYPE" = "${{ matrix.build_type }}" ]; then
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echo "should_build=true" >> $GITHUB_OUTPUT
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else
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echo "should_build=false" >> $GITHUB_OUTPUT
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fi
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else
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echo "should_build=true" >> $GITHUB_OUTPUT
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fi
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- name: Checkout repository
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if: steps.should_build.outputs.should_build == 'true'
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uses: actions/checkout@v4
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- name: Install base dependencies
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if: steps.should_build.outputs.should_build == 'true'
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run: |
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sudo apt-get update
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sudo apt-get install -y --no-install-recommends \
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build-essential \
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cmake \
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pkg-config \
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wget \
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file \
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libfuse2 \
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zlib1g-dev \
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libpng-dev \
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libjpeg-dev \
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libfreetype-dev \
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libxml2-dev \
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libcurl4-gnutls-dev \
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libssl-dev \
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clang \
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libclang-dev
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- name: Install OCR dependencies
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if: steps.should_build.outputs.should_build == 'true' && (matrix.build_type == 'ocr' || matrix.build_type == 'hardsubx')
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run: |
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sudo apt-get install -y --no-install-recommends \
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tesseract-ocr \
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libtesseract-dev \
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libleptonica-dev \
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tesseract-ocr-eng
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- name: Install FFmpeg dependencies (HardSubX)
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if: steps.should_build.outputs.should_build == 'true' && matrix.build_type == 'hardsubx'
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run: |
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sudo apt-get install -y --no-install-recommends \
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libavcodec-dev \
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libavformat-dev \
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libavutil-dev \
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libswscale-dev \
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libswresample-dev \
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libavfilter-dev
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- name: Install Rust toolchain
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if: steps.should_build.outputs.should_build == 'true'
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uses: dtolnay/rust-action@stable
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- name: Cache GPAC build
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if: steps.should_build.outputs.should_build == 'true'
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id: cache-gpac
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uses: actions/cache@v4
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with:
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path: /usr/local/lib/libgpac*
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key: gpac-v2.4.0-ubuntu22
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- name: Build and install GPAC
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if: steps.should_build.outputs.should_build == 'true' && steps.cache-gpac.outputs.cache-hit != 'true'
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run: |
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git clone -b v2.4.0 --depth 1 https://github.com/gpac/gpac
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cd gpac
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./configure
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make -j$(nproc) lib
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sudo make install-lib
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sudo ldconfig
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- name: Update library cache
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if: steps.should_build.outputs.should_build == 'true'
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run: sudo ldconfig
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- name: Build AppImage
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if: steps.should_build.outputs.should_build == 'true'
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run: |
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cd linux
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chmod +x build_appimage.sh
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BUILD_TYPE=${{ matrix.build_type }} ./build_appimage.sh
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- name: Get AppImage name
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if: steps.should_build.outputs.should_build == 'true'
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id: appimage_name
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run: |
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case "${{ matrix.build_type }}" in
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minimal)
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echo "name=ccextractor-minimal-x86_64.AppImage" >> $GITHUB_OUTPUT
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;;
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ocr)
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echo "name=ccextractor-x86_64.AppImage" >> $GITHUB_OUTPUT
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;;
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hardsubx)
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echo "name=ccextractor-hardsubx-x86_64.AppImage" >> $GITHUB_OUTPUT
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;;
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esac
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- name: Test AppImage
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if: steps.should_build.outputs.should_build == 'true'
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run: |
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chmod +x linux/${{ steps.appimage_name.outputs.name }}
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linux/${{ steps.appimage_name.outputs.name }} --version
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- name: Upload AppImage artifact
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if: steps.should_build.outputs.should_build == 'true'
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uses: actions/upload-artifact@v4
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with:
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name: ${{ steps.appimage_name.outputs.name }}
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path: linux/${{ steps.appimage_name.outputs.name }}
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- name: Upload to Release
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if: steps.should_build.outputs.should_build == 'true' && github.event_name == 'release'
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uses: softprops/action-gh-release@v1
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with:
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files: linux/${{ steps.appimage_name.outputs.name }}
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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