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83 lines
2.3 KiB
83 lines
2.3 KiB
#! /usr/bin/env nix-shell
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#! nix-shell -I nixpkgs=. -i bash -p delta jq perl
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set -euo pipefail
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shopt -s inherit_errexit
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cat <<'EOF'
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This script attempts to automatically convert option descriptions from
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DocBook syntax to markdown. Naturally this process is incomplete and
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imperfect, so any changes generated by this script MUST be reviewed.
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Possible problems include: incorrectly replaced tags, badly formatted
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markdown, DocBook tags this script doesn't recognize remaining in the
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output and crashing the docs build, incorrect escaping of markdown
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metacharacters, incorrect unescaping of XML entities—and the list goes on.
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Always review the generated changes!
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Some known limitations:
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- Does not transform literalDocBook items
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- Replacements can occur in non-option code, such as string literals
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EOF
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build-options-json() {
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nix-build --no-out-link --expr '
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let
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sys = import ./nixos/default.nix {
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configuration = {};
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};
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in
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[
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sys.config.system.build.manual.optionsJSON
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]
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'
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}
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git diff --quiet || {
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echo "Worktree is dirty. Please stash or commit first."
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exit 1
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}
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echo "Building options.json ..."
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old_options=$(build-options-json)
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echo "Applying replacements ..."
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perl -pi -e '
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BEGIN {
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undef $/;
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}
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s,<literal>([^`]*?)</literal>,`$1`,smg;
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s,<replaceable>([^»]*?)</replaceable>,«$1»,smg;
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s,<filename>([^`]*?)</filename>,{file}`$1`,smg;
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s,<option>([^`]*?)</option>,{option}`$1`,smg;
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s,<code>([^`]*?)</code>,`$1`,smg;
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s,<command>([^`]*?)</command>,{command}`$1`,smg;
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s,<link xlink:href="(.+?)" ?/>,<$1>,smg;
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s,<link xlink:href="(.+?)">(.*?)</link>,[$2]($1),smg;
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s,<package>([^`]*?)</package>,`$1`,smg;
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s,<emphasis>([^*]*?)</emphasis>,*$1*,smg;
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s,<citerefentry>\s*
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<refentrytitle>\s*(.*?)\s*</refentrytitle>\s*
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<manvolnum>\s*(.*?)\s*</manvolnum>\s*
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</citerefentry>,{manpage}`$1($2)`,smgx;
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s,^( +description =),\1 lib.mdDoc,smg;
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' "$@"
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echo "Building options.json again ..."
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new_options=$(build-options-json)
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! cmp -s {$old_options,$new_options}/share/doc/nixos/options.json && {
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diff -U10 \
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<(jq . <$old_options/share/doc/nixos/options.json) \
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<(jq . <$new_options/share/doc/nixos/options.json) \
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}
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