.gitlab-ci.yml - IDS-Mannheim/posterdown - Gitiles

 # use the verse rocker image, as it contains tidyverse, devtools and some texlive
 image: rocker/tidyverse

 variables:
   # Set `CCACHE_BASEDIR` and `CCACHE_DIR` to point `ccache` towards the cached
   # path on the gitlab-runner. This enables to cache the output of `ccache`
   # between various runs.
   CCACHE_BASEDIR: "${CI_PROJECT_DIR}"
   CCACHE_DIR: "${CI_PROJECT_DIR}/ccache"
   # Set `ccache` to `content` to prevent rebuilding of the CI/CD containers to
   # trigger a recreate of the cache. By using `content` the compiler's `mtime`
   # is not considered as part of the hash.
   CCACHE_COMPILERCHECK: "content"
   # Enable caching for `apt-get`.
   APT_CACHE_DIR: "${CI_PROJECT_DIR}/apt-cache"
   # Export `noninteractive` frontend to prevent requesting user input.
   DEBIAN_FRONTEND: "noninteractive"
   R_LIBS_USER: "RLIB/library"
   SOURCE_FILE: "inst/rmarkdown/templates/posterdown_ids/skeleton/skeleton.Rmd"

 # define stages of runner. at the moment,
 # just build (no test or deploy).
 stages:
   - build

 build-job:
   stage: build

   cache:
     key: posterdown-ids
     paths:
       - cache
       - apt-cache/
       - ccache/
       - RLIB/library/

   artifacts:
     paths:
       - "target/*"

   before_script:
     - source `find .. -name section_helper.sh`

     - start_section apt_mirrors "Configuring apt mirror and retries"
     - . /etc/os-release || true
     - |
       # Prefer mirror lists (automatic, resilient). Optionally force a German mirror
       # by setting APT_FORCE_DE_MIRROR=1 in CI/CD variables if you want a fixed DE mirror.
       # Handle both classic sources.list and Deb822 .sources files.
       set -eu
       APT_FILES=(/etc/apt/sources.list /etc/apt/sources.list.d/*.list /etc/apt/sources.list.d/*.sources)
       # shellcheck disable=SC2068
       APT_FILES=( ${APT_FILES[@]} )
       echo "--- os-release (selected) ---"
       grep -E '^(ID|VERSION_ID|VERSION_CODENAME|UBUNTU_CODENAME)=' /etc/os-release || true
       echo "--- resolved APT source files ---"
       for f in ${APT_FILES[@]}; do [ -e "$f" ] && echo "  - $f"; done
       echo "--- env summary ---"
       echo "APT_FORCE_DE_MIRROR=${APT_FORCE_DE_MIRROR:-} ID=${ID:-} VERSION_CODENAME=${VERSION_CODENAME:-} UBUNTU_CODENAME=${UBUNTU_CODENAME:-}"
       echo "--- apt sources (pre) ---"
       for f in ${APT_FILES[@]}; do
         [ -e "$f" ] || continue
         echo "### $f"
         grep -nE '^(deb|deb-src)|^(Types|URIs|Suites|Components)=' "$f" || sed -n '1,40p' "$f" || true
       done
       echo "--- rewrite mode decision ---"
       AUTOPICK="${APT_AUTOPICK_MIRROR:-}"
       if [ "${APT_FORCE_DE_MIRROR:-}" = "auto" ]; then AUTOPICK=1; fi
       if [ "${AUTOPICK}" = "1" ]; then
         echo "Mode=AUTO_PICK OS=${ID:-unknown}"
         if [ "${ID:-}" = "ubuntu" ] && command -v curl >/dev/null 2>&1; then
           CODE_NAME="${UBUNTU_CODENAME:-${VERSION_CODENAME:-}}"
           LIST_URL="https://mirrors.ubuntu.com/mirrors.txt"
           echo "Fetching mirror list: $LIST_URL"
           MIRRORS=$(curl -fsSL "$LIST_URL" | grep -E '^https?://.+' | sed 's#/*$##' | head -n 20 || true)
           BEST_URL=""; BEST_TIME="9999"
           echo "Testing up to 20 mirrors for ${CODE_NAME} InRelease"
           for m in $MIRRORS; do
             TEST_URL="$m/dists/${CODE_NAME}/InRelease"
             RES=$(curl -m 3 --connect-timeout 2 -o /dev/null -s -w '%{time_total} %{http_code}' "$TEST_URL" || echo "9.999 000")
             TME=${RES%% *}; CODE=${RES##* }
             echo "  $(printf '%6s' "$TME")s  $CODE  $m"
             if [ "$CODE" = "200" ]; then
               BETTER=$(awk -v a="$TME" -v b="$BEST_TIME" 'BEGIN{print (a<b)?"1":"0"}')
               if [ "$BETTER" = "1" ]; then BEST_TIME="$TME"; BEST_URL="$m"; fi
             fi
           done
           if [ -n "$BEST_URL" ]; then
             MIRROR_URL="${BEST_URL}"
             echo "Selected fastest: $MIRROR_URL (time=${BEST_TIME}s)"
             for f in ${APT_FILES[@]}; do
               [ -e "$f" ] || continue
               # Replace any Ubuntu archive base with selected mirror
               sed -i -E "s#https?://[^ ]*/ubuntu#${MIRROR_URL}#g" "$f" || true
               sed -i -E "s#mirror://mirrors\.ubuntu\.com/mirrors\.txt#${MIRROR_URL}#g" "$f" || true
             done
           else
             echo "Autopick failed to find a working mirror; falling back to mirror list."
             AUTOPICK=0
           fi
         else
           echo "Autopick not available (non-Ubuntu or curl missing); falling back."
           AUTOPICK=0
         fi
       fi
       if [ "${AUTOPICK}" != "1" ] && [ "${APT_FORCE_DE_MIRROR:-}" = "1" ]; then
         echo "Mode=FORCED_MIRROR OS=${ID:-unknown}"
         if [ "${ID:-}" = "ubuntu" ]; then
           MIRROR_URL="http://de.archive.ubuntu.com/ubuntu"
           for f in ${APT_FILES[@]}; do
             [ -e "$f" ] || continue
             sed -i -E "s#https?://[^ ]*ubuntu.com/ubuntu#${MIRROR_URL}#g" "$f" || true
             sed -i -E "s#mirror://mirrors\.ubuntu\.com/mirrors\.txt#${MIRROR_URL}#g" "$f" || true
           done
         elif [ "${ID:-}" = "debian" ]; then
           MIRROR_URL="http://ftp.de.debian.org/debian"
           for f in ${APT_FILES[@]}; do
             [ -e "$f" ] || continue
             sed -i -E "s#https?://(deb|ftp)[^ ]*debian.org/debian#${MIRROR_URL}#g" "$f" || true
             sed -i -E "s#mirror://mirrors\.debian\.org/debian#${MIRROR_URL}#g" "$f" || true
           done
         fi
       elif [ "${AUTOPICK}" != "1" ]; then
         echo "Mode=MIRROR_LIST OS=${ID:-unknown}"
         if [ "${ID:-}" = "ubuntu" ]; then
           for f in ${APT_FILES[@]}; do [ -e "$f" ] && sed -i -E 's#https?://[^ ]*ubuntu.com/ubuntu#mirror://mirrors.ubuntu.com/mirrors.txt#g' "$f" || true; done
         elif [ "${ID:-}" = "debian" ]; then
           for f in ${APT_FILES[@]}; do [ -e "$f" ] && sed -i -E 's#https?://(deb|ftp)[^ ]*debian.org/debian#mirror://mirrors.debian.org/debian#g' "$f" || true; done
         fi
       fi
       echo "--- apt sources (post) ---"
       for f in ${APT_FILES[@]}; do
         [ -e "$f" ] || continue
         echo "### $f"
         grep -nE '^(deb|deb-src)|^(Types|URIs|Suites|Components)=' "$f" || sed -n '1,40p' "$f" || true
       done
       # Show which mirror hosts remain after rewriting, to aid debugging
       echo "APT_FORCE_DE_MIRROR=${APT_FORCE_DE_MIRROR:-} ID=${ID:-} VERSION_CODENAME=${VERSION_CODENAME:-}"
       grep -R "archive\.ubuntu\.com/ubuntu\|ubuntu\.com/ubuntu\|debian\.org/debian\|mirrors\.ubuntu\.com\|mirrors\.debian\.org" -n /etc/apt || true
       echo "--- apt origins (apt-cache policy) ---"
       apt-cache policy | sed -n '1,120p' || true
       printf 'Acquire::Retries "5";\nAcquire::http::Timeout "30";\nAcquire::https::Timeout "30";\nAcquire::http::Pipeline-Depth "0";\n' > /etc/apt/apt.conf.d/99retries
     - end_section apt_mirrors

     - start_section install_linux_packages "Installing missing Linux packages"
     - mkdir -pv $APT_CACHE_DIR ccache $R_LIBS_USER
     - apt-get -o Acquire::Retries=5 -o Acquire::http::Timeout=30 -o Acquire::https::Timeout=30 update
     - apt-get install --no-install-recommends -o dir::cache::archives="$APT_CACHE_DIR" -y libasound2t64 npm curl ccache libvulkan1 libu2f-udev fonts-liberation build-essential libglpk40 libcurl4-gnutls-dev libxml2-dev libsodium-dev libsecret-1-dev libfontconfig1-dev libssl-dev libxt6 libpq-dev imagemagick ghostscript inkscape scour poppler-utils qpdf texlive-extra-utils texlive-latex-extra fonts-stix
     - command -v pdfjam
     - kpsewhich pdfpages.sty
     # The distro Node (18, EOL) is too old for current tooling. Install the
     # current Node.js LTS (24.x) from the official tarball into /usr/local, which
     # precedes /usr/bin on PATH so `node`/`npx` resolve to it. We deliberately do
     # NOT use NodeSource/apt: its `nodejs` package does not satisfy `nodejs:any`,
     # which breaks the distro `libnode-dev`/`node-acorn` sysdeps pak installs later.
     - NODE_TARBALL=$(curl -fsSL https://nodejs.org/dist/latest-v24.x/ | grep -oE 'node-v24\.[0-9]+\.[0-9]+-linux-x64\.tar\.gz' | head -n1)
     - curl -fsSL "https://nodejs.org/dist/latest-v24.x/$NODE_TARBALL" | tar -xz -C /usr/local --strip-components=1
     - node --version
     - npx @puppeteer/browsers install chrome-headless-shell@stable
     - export CHROME=$(find ~+ -name chrome-headless-shell -type f)
     - echo "CHROME=$CHROME"
     - ln -s $CHROME /usr/bin/google-chrome
     - ln -s $(which ccache) /usr/local/sbin/gcc
     - ln -s $(which ccache) /usr/local/sbin/g++
     - locale-gen de_DE.utf8 en_GB.utf8 en_US.utf8
     - end_section install_linux_packages

     - start_section testing_chromium "Testing chrome"
     - google-chrome --version
     - end_section testing_chromium

     - start_section install_fonts "Installing Fira, Twemoji and emoji fonts"
     - curl -Ls https://github.com/mozilla/Fira/archive/refs/tags/4.202.tar.gz | tar -C /usr/share/fonts -zx --wildcards "*.otf"
     - apt-get install --no-install-recommends -o dir::cache::archives="$APT_CACHE_DIR" -y rpm2cpio cpio fonts-noto-color-emoji fonts-symbola
     # Fedora's twitter-twemoji-fonts package ships a CBDT/CBLC (bitmap) build
     # of Twemoji. Use that rather than upstream's own SVGinOT release: Chrome
     # renders SVGinOT in color on screen, but its print-to-PDF path silently
     # falls back to the font's monochrome outline glyphs for that format --
     # CBDT/CBLC (like Noto Color Emoji) embeds correctly as a color PDF font.
     - curl -sLo /tmp/twemoji.rpm https://dl.fedoraproject.org/pub/fedora/linux/releases/44/Everything/x86_64/os/Packages/t/twitter-twemoji-fonts-14.0.2-10.fc44.noarch.rpm
     - (cd / && rpm2cpio /tmp/twemoji.rpm | cpio -idm ./usr/share/fonts/twemoji/Twemoji.ttf)
     - fc-cache
     - end_section install_fonts

     - start_section install_r_packages "Installing missing R packages"
 #    - echo -e 'local({r <- getOption("repos")\n r["CRAN"] <- "https://cloud.r-project.org"\n options(repos=r)})' > ~/.Rprofile
     - echo "options(Ncpus=$(nproc))" >> ~/.Rprofile
     - R -e "install.packages('pak', dependencies=TRUE)"
     - R -e "pak::pak(c('devtools', 'scales', 'sp', 'raster', 'kableExtra', 'DT', 'svglite', 'qrcode', 'ggthemes', 'patchwork', 'pagedown'), dependencies=TRUE)"
     - R -e 'devtools::install_git("https://korap.ids-mannheim.de/gerrit/IDS-Mannheim/idsThemeR", dependencies=TRUE)'
     - R -e 'devtools::install_git("https://korap.ids-mannheim.de/gerrit/IDS-Mannheim/posterdown", dependencies=TRUE)'
     - end_section install_r_packages

     - start_section testing_html2pdf "Testing PDF export"
     - ./ci/html2pdf ci/html2pdf-smoke.html /tmp/html2pdf-smoke.pdf
     - qpdf --check /tmp/html2pdf-smoke.pdf
     - end_section testing_html2pdf

   script:
     - start_section installing "Installing posterdown.ids"
     - R -e 'devtools::install()'
     - end_section installing
     - start_section render "Generating demo artifacts"
     - R_CACHE_ROOTPATH=./cache R -e "require(rmarkdown); render('$SOURCE_FILE', output_format='posterdown.ids::posterdown_ids', output_dir='target')"
     - export SVG=target/$(basename $SOURCE_FILE .Rmd).svg
     - export HTML=target/$(basename $SOURCE_FILE .Rmd).html
     - export PDF=target/$(basename $SOURCE_FILE .Rmd).pdf
     - ./ci/html2pdf $HTML $PDF 1
     # Variant for printing on fabric, where solid black bleeds out: replace all
     # vector black by 10% grey (keeps QR codes scannable and text crisp).
     - export FABRIC_PDF=target/$(basename $SOURCE_FILE .Rmd)_fabric.pdf
     - ./ci/pdf-lighten-black $PDF $FABRIC_PDF
     # Add 10 mm of blank material on every side for mounting the fabric poster.
     - pdfjam $FABRIC_PDF --papersize '{861mm,1209mm}' --noautoscale true --outfile target/$(basename $SOURCE_FILE .Rmd)_fabric-1cmborder.pdf
     - gs -sDEVICE=pdfwrite -dNOPAUSE -dBATCH -sPAPERSIZE=a1 -dFIXEDMEDIA -dPDFFitPage -sOutputFile=target/$(basename $SOURCE_FILE .Rmd)_a1.pdf $PDF
     - inkscape -b white --pdf-poppler -o $SVG $PDF || true
     - scour -i $SVG -o target/skeleton_optimized.svg --enable-viewboxing --enable-id-stripping --shorten-ids --indent=none
     - end_section render
	# use the verse rocker image, as it contains tidyverse, devtools and some texlive
	image: rocker/tidyverse

	variables:
	# Set `CCACHE_BASEDIR` and `CCACHE_DIR` to point `ccache` towards the cached
	# path on the gitlab-runner. This enables to cache the output of `ccache`
	# between various runs.
	CCACHE_BASEDIR: "${CI_PROJECT_DIR}"
	CCACHE_DIR: "${CI_PROJECT_DIR}/ccache"
	# Set `ccache` to `content` to prevent rebuilding of the CI/CD containers to
	# trigger a recreate of the cache. By using `content` the compiler's `mtime`
	# is not considered as part of the hash.
	CCACHE_COMPILERCHECK: "content"
	# Enable caching for `apt-get`.
	APT_CACHE_DIR: "${CI_PROJECT_DIR}/apt-cache"
	# Export `noninteractive` frontend to prevent requesting user input.
	DEBIAN_FRONTEND: "noninteractive"
	R_LIBS_USER: "RLIB/library"
	SOURCE_FILE: "inst/rmarkdown/templates/posterdown_ids/skeleton/skeleton.Rmd"

	# define stages of runner. at the moment,
	# just build (no test or deploy).
	stages:
	- build

	build-job:
	stage: build

	cache:
	key: posterdown-ids
	paths:
	- cache
	- apt-cache/
	- ccache/
	- RLIB/library/

	artifacts:
	paths:
	- "target/*"

	before_script:
	- source `find .. -name section_helper.sh`

	- start_section apt_mirrors "Configuring apt mirror and retries"
	- . /etc/os-release \|\| true
	- \|
	# Prefer mirror lists (automatic, resilient). Optionally force a German mirror
	# by setting APT_FORCE_DE_MIRROR=1 in CI/CD variables if you want a fixed DE mirror.
	# Handle both classic sources.list and Deb822 .sources files.
	set -eu
	APT_FILES=(/etc/apt/sources.list /etc/apt/sources.list.d/.list /etc/apt/sources.list.d/.sources)
	# shellcheck disable=SC2068
	APT_FILES=( ${APT_FILES[@]} )
	echo "--- os-release (selected) ---"
	grep -E '^(ID\|VERSION_ID\|VERSION_CODENAME\|UBUNTU_CODENAME)=' /etc/os-release \|\| true
	echo "--- resolved APT source files ---"
	for f in ${APT_FILES[@]}; do [ -e "$f" ] && echo " - $f"; done
	echo "--- env summary ---"
	echo "APT_FORCE_DE_MIRROR=${APT_FORCE_DE_MIRROR:-} ID=${ID:-} VERSION_CODENAME=${VERSION_CODENAME:-} UBUNTU_CODENAME=${UBUNTU_CODENAME:-}"
	echo "--- apt sources (pre) ---"
	for f in ${APT_FILES[@]}; do
	[ -e "$f" ] \|\| continue
	echo "### $f"
	grep -nE '^(deb\|deb-src)\|^(Types\|URIs\|Suites\|Components)=' "$f" \|\| sed -n '1,40p' "$f" \|\| true
	done
	echo "--- rewrite mode decision ---"
	AUTOPICK="${APT_AUTOPICK_MIRROR:-}"
	if [ "${APT_FORCE_DE_MIRROR:-}" = "auto" ]; then AUTOPICK=1; fi
	if [ "${AUTOPICK}" = "1" ]; then
	echo "Mode=AUTO_PICK OS=${ID:-unknown}"
	if [ "${ID:-}" = "ubuntu" ] && command -v curl >/dev/null 2>&1; then
	CODE_NAME="${UBUNTU_CODENAME:-${VERSION_CODENAME:-}}"
	LIST_URL="https://mirrors.ubuntu.com/mirrors.txt"
	echo "Fetching mirror list: $LIST_URL"
	MIRRORS=$(curl -fsSL "$LIST_URL" \| grep -E '^https?://.+' \| sed 's#/*$##' \| head -n 20 \|\| true)
	BEST_URL=""; BEST_TIME="9999"
	echo "Testing up to 20 mirrors for ${CODE_NAME} InRelease"
	for m in $MIRRORS; do
	TEST_URL="$m/dists/${CODE_NAME}/InRelease"
	RES=$(curl -m 3 --connect-timeout 2 -o /dev/null -s -w '%{time_total} %{http_code}' "$TEST_URL" \|\| echo "9.999 000")
	TME=${RES%% }; CODE=${RES## }
	echo " $(printf '%6s' "$TME")s $CODE $m"
	if [ "$CODE" = "200" ]; then
	BETTER=$(awk -v a="$TME" -v b="$BEST_TIME" 'BEGIN{print (a<b)?"1":"0"}')
	if [ "$BETTER" = "1" ]; then BEST_TIME="$TME"; BEST_URL="$m"; fi
	fi
	done
	if [ -n "$BEST_URL" ]; then
	MIRROR_URL="${BEST_URL}"
	echo "Selected fastest: $MIRROR_URL (time=${BEST_TIME}s)"
	for f in ${APT_FILES[@]}; do
	[ -e "$f" ] \|\| continue
	# Replace any Ubuntu archive base with selected mirror
	sed -i -E "s#https?://[^ ]*/ubuntu#${MIRROR_URL}#g" "$f" \|\| true
	sed -i -E "s#mirror://mirrors\.ubuntu\.com/mirrors\.txt#${MIRROR_URL}#g" "$f" \|\| true
	done
	else
	echo "Autopick failed to find a working mirror; falling back to mirror list."
	AUTOPICK=0
	fi
	else
	echo "Autopick not available (non-Ubuntu or curl missing); falling back."
	AUTOPICK=0
	fi
	fi
	if [ "${AUTOPICK}" != "1" ] && [ "${APT_FORCE_DE_MIRROR:-}" = "1" ]; then
	echo "Mode=FORCED_MIRROR OS=${ID:-unknown}"
	if [ "${ID:-}" = "ubuntu" ]; then
	MIRROR_URL="http://de.archive.ubuntu.com/ubuntu"
	for f in ${APT_FILES[@]}; do
	[ -e "$f" ] \|\| continue
	sed -i -E "s#https?://[^ ]*ubuntu.com/ubuntu#${MIRROR_URL}#g" "$f" \|\| true
	sed -i -E "s#mirror://mirrors\.ubuntu\.com/mirrors\.txt#${MIRROR_URL}#g" "$f" \|\| true
	done
	elif [ "${ID:-}" = "debian" ]; then
	MIRROR_URL="http://ftp.de.debian.org/debian"
	for f in ${APT_FILES[@]}; do
	[ -e "$f" ] \|\| continue
	sed -i -E "s#https?://(deb\|ftp)[^ ]*debian.org/debian#${MIRROR_URL}#g" "$f" \|\| true
	sed -i -E "s#mirror://mirrors\.debian\.org/debian#${MIRROR_URL}#g" "$f" \|\| true
	done
	fi
	elif [ "${AUTOPICK}" != "1" ]; then
	echo "Mode=MIRROR_LIST OS=${ID:-unknown}"
	if [ "${ID:-}" = "ubuntu" ]; then
	for f in ${APT_FILES[@]}; do [ -e "$f" ] && sed -i -E 's#https?://[^ ]*ubuntu.com/ubuntu#mirror://mirrors.ubuntu.com/mirrors.txt#g' "$f" \|\| true; done
	elif [ "${ID:-}" = "debian" ]; then
	for f in ${APT_FILES[@]}; do [ -e "$f" ] && sed -i -E 's#https?://(deb\|ftp)[^ ]*debian.org/debian#mirror://mirrors.debian.org/debian#g' "$f" \|\| true; done
	fi
	fi
	echo "--- apt sources (post) ---"
	for f in ${APT_FILES[@]}; do
	[ -e "$f" ] \|\| continue
	echo "### $f"
	grep -nE '^(deb\|deb-src)\|^(Types\|URIs\|Suites\|Components)=' "$f" \|\| sed -n '1,40p' "$f" \|\| true
	done
	# Show which mirror hosts remain after rewriting, to aid debugging
	echo "APT_FORCE_DE_MIRROR=${APT_FORCE_DE_MIRROR:-} ID=${ID:-} VERSION_CODENAME=${VERSION_CODENAME:-}"
	grep -R "archive\.ubuntu\.com/ubuntu\\|ubuntu\.com/ubuntu\\|debian\.org/debian\\|mirrors\.ubuntu\.com\\|mirrors\.debian\.org" -n /etc/apt \|\| true
	echo "--- apt origins (apt-cache policy) ---"
	apt-cache policy \| sed -n '1,120p' \|\| true
	printf 'Acquire::Retries "5";\nAcquire::http::Timeout "30";\nAcquire::https::Timeout "30";\nAcquire::http::Pipeline-Depth "0";\n' > /etc/apt/apt.conf.d/99retries
	- end_section apt_mirrors

	- start_section install_linux_packages "Installing missing Linux packages"
	- mkdir -pv $APT_CACHE_DIR ccache $R_LIBS_USER
	- apt-get -o Acquire::Retries=5 -o Acquire::http::Timeout=30 -o Acquire::https::Timeout=30 update
	- apt-get install --no-install-recommends -o dir::cache::archives="$APT_CACHE_DIR" -y libasound2t64 npm curl ccache libvulkan1 libu2f-udev fonts-liberation build-essential libglpk40 libcurl4-gnutls-dev libxml2-dev libsodium-dev libsecret-1-dev libfontconfig1-dev libssl-dev libxt6 libpq-dev imagemagick ghostscript inkscape scour poppler-utils qpdf texlive-extra-utils texlive-latex-extra fonts-stix
	- command -v pdfjam
	- kpsewhich pdfpages.sty
	# The distro Node (18, EOL) is too old for current tooling. Install the
	# current Node.js LTS (24.x) from the official tarball into /usr/local, which
	# precedes /usr/bin on PATH so `node`/`npx` resolve to it. We deliberately do
	# NOT use NodeSource/apt: its `nodejs` package does not satisfy `nodejs:any`,
	# which breaks the distro `libnode-dev`/`node-acorn` sysdeps pak installs later.
	- NODE_TARBALL=$(curl -fsSL https://nodejs.org/dist/latest-v24.x/ \| grep -oE 'node-v24\.[0-9]+\.[0-9]+-linux-x64\.tar\.gz' \| head -n1)
	- curl -fsSL "https://nodejs.org/dist/latest-v24.x/$NODE_TARBALL" \| tar -xz -C /usr/local --strip-components=1
	- node --version
	- npx @puppeteer/browsers install chrome-headless-shell@stable
	- export CHROME=$(find ~+ -name chrome-headless-shell -type f)
	- echo "CHROME=$CHROME"
	- ln -s $CHROME /usr/bin/google-chrome
	- ln -s $(which ccache) /usr/local/sbin/gcc
	- ln -s $(which ccache) /usr/local/sbin/g++
	- locale-gen de_DE.utf8 en_GB.utf8 en_US.utf8
	- end_section install_linux_packages

	- start_section testing_chromium "Testing chrome"
	- google-chrome --version
	- end_section testing_chromium

	- start_section install_fonts "Installing Fira, Twemoji and emoji fonts"
	- curl -Ls https://github.com/mozilla/Fira/archive/refs/tags/4.202.tar.gz \| tar -C /usr/share/fonts -zx --wildcards "*.otf"
	- apt-get install --no-install-recommends -o dir::cache::archives="$APT_CACHE_DIR" -y rpm2cpio cpio fonts-noto-color-emoji fonts-symbola
	# Fedora's twitter-twemoji-fonts package ships a CBDT/CBLC (bitmap) build
	# of Twemoji. Use that rather than upstream's own SVGinOT release: Chrome
	# renders SVGinOT in color on screen, but its print-to-PDF path silently
	# falls back to the font's monochrome outline glyphs for that format --
	# CBDT/CBLC (like Noto Color Emoji) embeds correctly as a color PDF font.
	- curl -sLo /tmp/twemoji.rpm https://dl.fedoraproject.org/pub/fedora/linux/releases/44/Everything/x86_64/os/Packages/t/twitter-twemoji-fonts-14.0.2-10.fc44.noarch.rpm
	- (cd / && rpm2cpio /tmp/twemoji.rpm \| cpio -idm ./usr/share/fonts/twemoji/Twemoji.ttf)
	- fc-cache
	- end_section install_fonts

	- start_section install_r_packages "Installing missing R packages"
	# - echo -e 'local({r <- getOption("repos")\n r["CRAN"] <- "https://cloud.r-project.org"\n options(repos=r)})' > ~/.Rprofile
	- echo "options(Ncpus=$(nproc))" >> ~/.Rprofile
	- R -e "install.packages('pak', dependencies=TRUE)"
	- R -e "pak::pak(c('devtools', 'scales', 'sp', 'raster', 'kableExtra', 'DT', 'svglite', 'qrcode', 'ggthemes', 'patchwork', 'pagedown'), dependencies=TRUE)"
	- R -e 'devtools::install_git("https://korap.ids-mannheim.de/gerrit/IDS-Mannheim/idsThemeR", dependencies=TRUE)'
	- R -e 'devtools::install_git("https://korap.ids-mannheim.de/gerrit/IDS-Mannheim/posterdown", dependencies=TRUE)'
	- end_section install_r_packages

	- start_section testing_html2pdf "Testing PDF export"
	- ./ci/html2pdf ci/html2pdf-smoke.html /tmp/html2pdf-smoke.pdf
	- qpdf --check /tmp/html2pdf-smoke.pdf
	- end_section testing_html2pdf

	script:
	- start_section installing "Installing posterdown.ids"
	- R -e 'devtools::install()'
	- end_section installing
	- start_section render "Generating demo artifacts"
	- R_CACHE_ROOTPATH=./cache R -e "require(rmarkdown); render('$SOURCE_FILE', output_format='posterdown.ids::posterdown_ids', output_dir='target')"
	- export SVG=target/$(basename $SOURCE_FILE .Rmd).svg
	- export HTML=target/$(basename $SOURCE_FILE .Rmd).html
	- export PDF=target/$(basename $SOURCE_FILE .Rmd).pdf
	- ./ci/html2pdf $HTML $PDF 1
	# Variant for printing on fabric, where solid black bleeds out: replace all
	# vector black by 10% grey (keeps QR codes scannable and text crisp).
	- export FABRIC_PDF=target/$(basename $SOURCE_FILE .Rmd)_fabric.pdf
	- ./ci/pdf-lighten-black $PDF $FABRIC_PDF
	# Add 10 mm of blank material on every side for mounting the fabric poster.
	- pdfjam $FABRIC_PDF --papersize '{861mm,1209mm}' --noautoscale true --outfile target/$(basename $SOURCE_FILE .Rmd)_fabric-1cmborder.pdf
	- gs -sDEVICE=pdfwrite -dNOPAUSE -dBATCH -sPAPERSIZE=a1 -dFIXEDMEDIA -dPDFFitPage -sOutputFile=target/$(basename $SOURCE_FILE .Rmd)_a1.pdf $PDF
	- inkscape -b white --pdf-poppler -o $SVG $PDF \|\| true
	- scour -i $SVG -o target/skeleton_optimized.svg --enable-viewboxing --enable-id-stripping --shorten-ids --indent=none
	- end_section render