TSYS Group COO
d3a4cbe7e9
texlive-full, pandoc, quarto, typst, hugo, mdbook+mermaid, weasyprint, plantuml, graphviz/gnuplot, chromium+mermaid.js rendering, eisvogel + reveal.js assets. Layered least-volatile first for cheap pin bumps.
28 lines
1.2 KiB
Bash
Executable File
28 lines
1.2 KiB
Bash
Executable File
#!/bin/bash
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# knelpdf-mermaid: render a mermaid diagram to PNG without Node.js.
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# Uses bundled mermaid.min.js + headless chromium.
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# usage: knelpdf-mermaid input.mmd output.png [theme] [width] [height]
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set -euo pipefail
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IN="${1:?usage: knelpdf-mermaid input.mmd output.png [theme] [width] [height]}"
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OUT="${2:?usage: knelpdf-mermaid input.mmd output.png [theme] [width] [height]}"
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THEME="${3:-default}"
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W="${4:-1600}"; H="${5:-1200}"
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case "$IN" in *.svg|*.png) echo "output-only extension in OUT, not IN" >&2; exit 2;; esac
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WORK="$(mktemp -d)"
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trap 'rm -rf "$WORK"' EXIT
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{
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echo '<!doctype html><html><head><meta charset="utf-8">'
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echo '<style>body{margin:0;background:white;font-family:sans-serif}</style>'
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echo '</head><body><div class="mermaid">'
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cat "$IN"
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echo '</div>'
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echo '<script src="file:///opt/mermaid/mermaid.min.js"></script>'
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echo "<script>mermaid.initialize({startOnLoad:true,theme:\"${THEME}\"});</script>"
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echo '</body></html>'
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} > "$WORK/render.html"
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chromium --headless=new --no-sandbox --disable-gpu \
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--allow-file-access-from-files --hide-scrollbars \
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--screenshot="$OUT" --window-size="${W},${H}" \
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--virtual-time-budget=10000 "file://$WORK/render.html" 2>/dev/null
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test -s "$OUT" && echo "wrote $OUT"
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