Work around thread-safety issue deep inside RSVG+Cairo. #405

Workflow file for this run

	name: CI
	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	build-and-test:
	runs-on: ubuntu-20.04 # test slightly older ubuntu.
	strategy:
	fail-fast: false
	matrix:
	compiler:
	- g++
	- clang++

	name: Build ${{matrix.compiler}}
	steps:
	- name: Install minimal dependencies
	run: \|
	sudo apt update
	sudo apt install cmake git g++ clang pkg-config libswscale-dev libavutil-dev libdeflate-dev

	- name: Get the Source
	uses: actions/checkout@v3

	- name: Configure shell
	run: \|
	echo "CXX=${{ matrix.compiler }}" >> $GITHUB_ENV
	echo "CXXFLAGS=-Werror" >> $GITHUB_ENV

	- name: Build minimal dependency timg
	# Building a timg with all dependencies removed to the point that it
	# can't display anything. Makes sure all the #ifdefs are there.
	run: \|
	mkdir build-limitdep
	cd build-limitdep
	cmake .. -DWITH_VIDEO_DECODING=Off -DWITH_VIDEO_DEVICE=Off -DWITH_OPENSLIDE_SUPPORT=Off -DWITH_GRAPHICSMAGICK=Off -DWITH_TURBOJPEG=Off -DWITH_RSVG=Off -DWITH_LIBSIXEL=Off
	make -k

	- name: Install Full Dependencies
	run: \|
	sudo apt update
	sudo apt install libgraphicsmagick++-dev
	sudo apt install libturbojpeg-dev libexif-dev
	sudo apt install libsixel-dev
	sudo apt install librsvg2-dev libcairo-dev
	sudo apt install libavcodec-dev libavformat-dev libavdevice-dev
	sudo apt install libopenslide-dev
	sudo apt install libpoppler-glib-dev
	sudo apt install pandoc

	- name: Build timg with all options enabled
	run: \|
	mkdir build
	cd build
	cmake .. -DWITH_VIDEO_DECODING=On -DWITH_VIDEO_DEVICE=On -DWITH_OPENSLIDE_SUPPORT=On -DWITH_STB_IMAGE=On -DWITH_RSVG=On -DWITH_POPPLER=On -DWITH_LIBSIXEL=On
	make -k

	- name: Print timg Version string
	run: \|
	echo "------------------- Limited dependency version string --------"
	build-limitdep/src/timg --version
	echo

	echo "------------------- All dependencies version string ----------"
	build/src/timg --version

	CodeFormatting:
	runs-on: ubuntu-latest

	steps:

	- name: Checkout code
	uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- name: Install Dependencies
	run: \|
	sudo apt-get install clang-format-13

	- name: Run formatting style check
	run: ./.github/bin/run-clang-format.sh

	TagIfNeeded:
	name: Version Tagging
	runs-on: ubuntu-latest
	#if: ${{github.event_name == 'push' && github.ref == 'refs/heads/main'}}
	permissions:
	contents: write

	outputs:
	release_tag: ${{ steps.do_tag.outputs.RELEASE_TAG }}

	steps:
	- name: 📥 Download artifacts
	uses: actions/download-artifact@v3

	- uses: actions/checkout@v3
	with:
	fetch-depth: 0
	token: ${{ secrets.GITHUB_TOKEN }}

	- name: Tag with CMake version if not already.
	id: do_tag
	run: \|
	git config --local user.name "Development Bot"
	git config --local user.email "h.zeller@timg.sh"

	# We want to tag whenever the cmake version changes. So extract the
	# hash of when the current version was entered.
	read TAG_HASH TAG_VERSION <<<$(git annotate -l CMakeLists.txt \| sed 's/$^[0-9A-Fa-f]\+$.project(timg VERSION $[0-9]\+\.[0-9]\+\.[0-9]\+$./\1 \2/p;d')

	echo "timg Version v${TAG_VERSION} at hash ${TAG_HASH}"

	# If this is the first time we see this tag: apply.
	if [ -z "$(git tag -l "v${TAG_VERSION}")" ]; then
	git tag -a "v${TAG_VERSION}" ${TAG_HASH} -m "Update to v${TAG_VERSION}"
	git push origin "v${TAG_VERSION}"
	echo "RELEASE_TAG=v${TAG_VERSION}" >> $GITHUB_OUTPUT
	else
	echo "Tag does exist already"
	fi

	AppImageBuild:
	needs: [ TagIfNeeded ]
	runs-on: ubuntu-latest
	name: Build AppImage
	steps:
	- name: Checkout code
	uses: actions/checkout@v3
	with:
	fetch-depth: 0

	# TODO: extract version from tag, fix-up yml file.
	- name: Install Dependencies
	run: \|
	sudo apt update
	sudo apt install cmake git g++ clang pkg-config
	sudo apt install libswscale-dev libavutil-dev libdeflate-dev
	sudo apt install libturbojpeg-dev libexif-dev
	sudo apt install librsvg2-dev libcairo-dev
	sudo apt install libsixel-dev
	sudo apt install libpoppler-glib-dev
	sudo apt install pandoc

	- name: Set Version
	run: \|
	echo "PACKAGE_VERSION=$(git describe \| sed 's/$v.-.$-.*/\1/')" >> $GITHUB_ENV

	- name: Build AppDir
	run: \|
	# Switch off some or the more expensive dependencies.
	# also check apt to include in .github/conf/AppImageBuilder.yml
	./.github/bin/prepare-app-image.sh \
	-DWITH_GRAPHICSMAGICK=Off \
	-DWITH_RSVG=Off \
	-DWITH_POPPLER=Off \
	-DWITH_VIDEO_DECODING=Off \
	-DWITH_VIDEO_DEVICE=Off \
	-DWITH_OPENSLIDE_SUPPORT=Off \
	-DWITH_TURBOJPEG=On \
	-DWITH_STB_IMAGE=On \
	-DWITH_QOI_IMAGE=On \
	-DWITH_LIBSIXEL=On
	strip AppDir/usr/bin/timg
	ldd AppDir/usr/bin/timg
	sed "s/@VERSION@/$PACKAGE_VERSION/" \
	< .github/conf/AppImageBuilder.yml.in \
	> AppImageBuilder.yml

	- name: Package
	uses: AppImageCrafters/build-appimage@master
	env:
	UPDATE_INFO: gh-releases-zsync\|hzeller\|timg\|latest\|*.AppImage.zsync
	with:
	recipe: "AppImageBuilder.yml"

	- name: 📤 Upload artifact
	uses: actions/upload-artifact@v3
	with:
	name: timg-${{ env.PACKAGE_VERSION }}-x86_64.AppImage
	path: timg-${{ env.PACKAGE_VERSION }}-x86_64.AppImage


	Release:
	needs: [ AppImageBuild ]
	if: needs.TagIfNeeded.RELEASE_TAG != ''
	runs-on: ubuntu-latest
	name: Create Release
	steps:
	- name: 🎉 Release If Tagged
	uses: svenstaro/upload-release-action@v2
	with:
	repo_token: ${{ secrets.GITHUB_TOKEN }}
	file: artifact/timg-*.AppImage
	tag: ${{ needs.TagIfNeeded.RELEASE_TAG }}
	overwrite: true
	file_glob: true

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Work around thread-safety issue deep inside RSVG+Cairo. #405

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Work around thread-safety issue deep inside RSVG+Cairo. #405

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