lix/doc/manual/generate-manpage.nix

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Nix
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command:
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with builtins;
with import ./utils.nix;
let
showCommand =
{ command, def, filename }:
"# Name\n\n"
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+ "`${command}` - ${def.description}\n\n"
+ "# Synopsis\n\n"
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+ showSynopsis { inherit command; args = def.args; }
+ (if def.commands or {} != {}
then
"where *subcommand* is one of the following:\n\n"
# FIXME: group by category
+ concatStrings (map (name:
"* [`${command} ${name}`](./${appendName filename name}.md) - ${def.commands.${name}.description}\n")
(attrNames def.commands))
+ "\n"
else "")
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+ (if def.examples or [] != []
then
"# Examples\n\n"
+ concatStrings (map ({ description, command }: "${description}\n\n```console\n${command}\n```\n\n") def.examples)
else "")
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+ (if def ? doc
then def.doc + "\n\n"
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else "")
+ (let s = showFlags def.flags; in
if s != ""
then "# Flags\n\n${s}"
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else "")
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;
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appendName = filename: name: (if filename == "nix" then "nix3" else filename) + "-" + name;
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showFlags = flags:
concatStrings
(map (longName:
let flag = flags.${longName}; in
if flag.category or "" != "config"
then
" - `--${longName}`"
+ (if flag ? shortName then " / `${flag.shortName}`" else "")
+ (if flag ? labels then " " + (concatStringsSep " " (map (s: "*${s}*") flag.labels)) else "")
+ " \n"
+ " " + flag.description + "\n\n"
else "")
(attrNames flags));
showSynopsis =
{ command, args }:
"`${command}` [*flags*...] ${concatStringsSep " "
(map (arg: "*${arg.label}*" + (if arg ? arity then "" else "...")) args)}\n\n";
processCommand = { command, def, filename }:
[ { name = filename + ".md"; value = showCommand { inherit command def filename; }; inherit command; } ]
++ concatMap
(name: processCommand {
filename = appendName filename name;
command = command + " " + name;
def = def.commands.${name};
})
(attrNames def.commands or {});
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in
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let
manpages = processCommand { filename = "nix"; command = "nix"; def = command; };
summary = concatStrings (map (manpage: " - [${manpage.command}](command-ref/new-cli/${manpage.name})\n") manpages);
in
(listToAttrs manpages) // { "SUMMARY.md" = summary; }