a8d4cf149c
Move the manpage-to-URL mapping to `doc/manpage-urls.json` so that we can reuse that file elsewhere, and generate the `link-manpages.lua` filter from that file. Also modify the Pandoc filter so that it doesn't wrap manpages that are already inside a link. Keeping a Lua filter is essential for speed: a Python filter would increase the runtime `md-to-db.sh` from ~20s to ~30s (but Python is not to blame; marshalling Pandoc types to and from JSON is a costly operation). Parsing in Lua seems tedious, so I went with the Nix way.
88 lines
2.9 KiB
Bash
Executable file
88 lines
2.9 KiB
Bash
Executable file
#! /usr/bin/env nix-shell
|
|
#! nix-shell -I nixpkgs=. -i bash -p pandoc
|
|
|
|
# This script is temporarily needed while we transition the manual to
|
|
# CommonMark. It converts DocBook files into our CommonMark flavour.
|
|
|
|
debug=
|
|
files=()
|
|
|
|
while [ "$#" -gt 0 ]; do
|
|
i="$1"; shift 1
|
|
case "$i" in
|
|
--debug)
|
|
debug=1
|
|
;;
|
|
*)
|
|
files+=("$i")
|
|
;;
|
|
esac
|
|
done
|
|
|
|
echo "WARNING: This is an experimental script and might not preserve all formatting." > /dev/stderr
|
|
echo "Please report any issues you discover." > /dev/stderr
|
|
|
|
outExtension="md"
|
|
if [[ $debug ]]; then
|
|
outExtension="json"
|
|
fi
|
|
|
|
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
|
|
|
|
# NOTE: Keep in sync with Nixpkgs manual (/doc/Makefile).
|
|
# TODO: Remove raw-attribute when we can get rid of DocBook altogether.
|
|
pandoc_commonmark_enabled_extensions=+attributes+fenced_divs+footnotes+bracketed_spans+definition_lists+pipe_tables+raw_attribute
|
|
targetLang="commonmark${pandoc_commonmark_enabled_extensions}+smart"
|
|
if [[ $debug ]]; then
|
|
targetLang=json
|
|
fi
|
|
pandoc_flags=(
|
|
# Not needed:
|
|
# - diagram-generator.lua (we do not support that in NixOS manual to limit dependencies)
|
|
# - media extraction (was only required for diagram generator)
|
|
# - myst-reader/roles.lua (only relevant for MyST → DocBook)
|
|
# - link-manpages.lua (links should only be added to display output)
|
|
# - docbook-writer/rst-roles.lua (only relevant for → DocBook)
|
|
# - docbook-writer/labelless-link-is-xref.lua (only relevant for → DocBook)
|
|
"--lua-filter=$DIR/../../doc/build-aux/pandoc-filters/docbook-reader/citerefentry-to-rst-role.lua"
|
|
"--lua-filter=$DIR/../../doc/build-aux/pandoc-filters/myst-writer/roles.lua"
|
|
"--lua-filter=$DIR/doc/unknown-code-language.lua"
|
|
-f docbook
|
|
-t "$targetLang"
|
|
--tab-stop=2
|
|
--wrap=none
|
|
)
|
|
|
|
for file in "${files[@]}"; do
|
|
if [[ ! -f "$file" ]]; then
|
|
echo "db-to-md.sh: $file does not exist" > /dev/stderr
|
|
exit 1
|
|
else
|
|
rootElement=$(xmllint --xpath 'name(//*)' "$file")
|
|
|
|
if [[ $rootElement = chapter ]]; then
|
|
extension=".chapter.$outExtension"
|
|
elif [[ $rootElement = section ]]; then
|
|
extension=".section.$outExtension"
|
|
else
|
|
echo "db-to-md.sh: $file contains an unsupported root element $rootElement" > /dev/stderr
|
|
exit 1
|
|
fi
|
|
|
|
outFile="${file%".section.xml"}"
|
|
outFile="${outFile%".chapter.xml"}"
|
|
outFile="${outFile%".xml"}$extension"
|
|
temp1=$(mktemp)
|
|
$DIR/doc/escape-code-markup.py "$file" "$temp1"
|
|
if [[ $debug ]]; then
|
|
echo "Converted $file to $temp1" > /dev/stderr
|
|
fi
|
|
temp2=$(mktemp)
|
|
$DIR/doc/replace-xrefs-by-empty-links.py "$temp1" "$temp2"
|
|
if [[ $debug ]]; then
|
|
echo "Converted $temp1 to $temp2" > /dev/stderr
|
|
fi
|
|
pandoc "$temp2" -o "$outFile" "${pandoc_flags[@]}"
|
|
echo "Converted $file to $outFile" > /dev/stderr
|
|
fi
|
|
done
|