34 lines
1.2 KiB
Bash
34 lines
1.2 KiB
Bash
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#!/usr/bin/env nix-shell
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#!nix-shell -i zsh -p zsh
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set -euo pipefail
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# cd into nixpkgs' root, get the store path of `systemd.man`
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cd "$(dirname "$0")/../../.."
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SYSTEMD_MAN_DIR="$(nix-build -A systemd.man)/share/man"
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# For each manual section
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for section in {1..8}; do
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sec_dir="${SYSTEMD_MAN_DIR}/man${section}"
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# skip section 3 (library calls)
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! [[ $section -eq 3 ]] || continue
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# for each manpage in that section (potentially none)
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for manpage in ${sec_dir}/*(N); do
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# strip the directory prefix and (compressed) manpage suffix
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page="$(basename "$manpage" ".${section}.gz")"
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# if this is the manpage of a service unit
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if [[ "$page" =~ ".*\.service" ]]; then
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# ... and a manpage exists without the `.service` suffix
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potential_alias="${sec_dir}/${page%\.service}.${section}.gz"
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! [[ -e "${potential_alias}" &&
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# ... which points to the same file, then skip
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"$(gunzip -c "${potential_alias}")" == ".so ${page}.${section}" ]] || continue
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fi
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# else produce a JSON fragment, with the link to the upstream manpage (as HTML)
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echo " \"${page}(${section})\": \"https://www.freedesktop.org/software/systemd/man/${page}.html\","
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done
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done
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