mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-29 10:23:29 +00:00
197 lines
8.4 KiB
Nix
197 lines
8.4 KiB
Nix
{ config, lib, pkgs, ... }:
|
||
|
||
let
|
||
makewhatis = "${lib.getBin cfg.package}/bin/makewhatis";
|
||
|
||
cfg = config.documentation.man.mandoc;
|
||
|
||
toMandocOutput = output: (
|
||
lib.mapAttrsToList
|
||
(
|
||
name: value:
|
||
if lib.isString value || lib.isPath value then "output ${name} ${value}"
|
||
else if lib.isInt value then "output ${name} ${builtins.toString value}"
|
||
else if lib.isBool value then lib.optionalString value "output ${name}"
|
||
else if value == null then ""
|
||
else throw "Unrecognized value type ${builtins.typeOf value} of key ${name} in mandoc output settings"
|
||
)
|
||
output
|
||
);
|
||
in
|
||
{
|
||
meta.maintainers = [ lib.maintainers.sternenseemann ];
|
||
|
||
options = {
|
||
documentation.man.mandoc = {
|
||
enable = lib.mkEnableOption "mandoc as the default man page viewer";
|
||
|
||
manPath = lib.mkOption {
|
||
type = with lib.types; listOf str;
|
||
default = [ "share/man" ];
|
||
example = lib.literalExpression "[ \"share/man\" \"share/man/fr\" ]";
|
||
description = ''
|
||
Change the paths included in the MANPATH environment variable,
|
||
i. e. the directories where {manpage}`man(1)`
|
||
looks for section-specific directories of man pages.
|
||
You only need to change this setting if you want extra man pages
|
||
(e. g. in non-english languages). All values must be strings that
|
||
are a valid path from the target prefix (without including it).
|
||
The first value given takes priority. Note that this will not
|
||
add manpath directives to {manpage}`man.conf(5)`.
|
||
'';
|
||
};
|
||
|
||
package = lib.mkOption {
|
||
type = lib.types.package;
|
||
default = pkgs.mandoc;
|
||
defaultText = lib.literalExpression "pkgs.mandoc";
|
||
description = ''
|
||
The `mandoc` derivation to use. Useful to override
|
||
configuration options used for the package.
|
||
'';
|
||
};
|
||
|
||
settings = lib.mkOption {
|
||
description = "Configuration for {manpage}`man.conf(5)`";
|
||
default = { };
|
||
type = lib.types.submodule {
|
||
options = {
|
||
manpath = lib.mkOption {
|
||
type = with lib.types; listOf str;
|
||
default = [ ];
|
||
example = lib.literalExpression "[ \"/run/current-system/sw/share/man\" ]";
|
||
description = ''
|
||
Override the default search path for {manpage}`man(1)`,
|
||
{manpage}`apropos(1)`, and {manpage}`makewhatis(8)`. It can be
|
||
used multiple times to specify multiple paths, with the order
|
||
determining the manual page search order.
|
||
This is not recommended in favor of
|
||
{option}`documentation.man.mandoc.manPath`, but if it's needed to
|
||
specify the manpath in this way, set
|
||
{option}`documentation.man.mandoc.manPath` to an empty list (`[]`).
|
||
'';
|
||
};
|
||
output.fragment = lib.mkEnableOption ''
|
||
Omit the <!DOCTYPE> declaration and the <html>, <head>, and <body>
|
||
elements and only emit the subtree below the <body> element in HTML
|
||
output of {manpage}`mandoc(1)`. The style argument will be ignored.
|
||
This is useful when embedding manual content within existing documents.
|
||
'';
|
||
output.includes = lib.mkOption {
|
||
type = with lib.types; nullOr str;
|
||
default = null;
|
||
example = lib.literalExpression "../src/%I.html";
|
||
description = ''
|
||
A string of relative path used as a template for the output path of
|
||
linked header files (usually via the In macro) in HTML output.
|
||
Instances of `%I` are replaced with the include filename. The
|
||
default is not to present a hyperlink.
|
||
'';
|
||
};
|
||
output.indent = lib.mkOption {
|
||
type = with lib.types; nullOr int;
|
||
default = null;
|
||
description = ''
|
||
Number of blank characters at the left margin for normal text,
|
||
default of `5` for {manpage}`mdoc(7)` and `7` for
|
||
{manpage}`man(7)`. Increasing this is not recommended; it may
|
||
result in degraded formatting, for example overfull lines or ugly
|
||
line breaks. When output is to a pager on a terminal that is less
|
||
than 66 columns wide, the default is reduced to three columns.
|
||
'';
|
||
};
|
||
output.man = lib.mkOption {
|
||
type = with lib.types; nullOr str;
|
||
default = null;
|
||
example = lib.literalExpression "../html%S/%N.%S.html";
|
||
description = ''
|
||
A template for linked manuals (usually via the Xr macro) in HTML
|
||
output. Instances of ‘%N’ and ‘%S’ are replaced with the linked
|
||
manual's name and section, respectively. If no section is included,
|
||
section 1 is assumed. The default is not to present a hyperlink.
|
||
If two formats are given and a file %N.%S exists in the current
|
||
directory, the first format is used; otherwise, the second format is used.
|
||
'';
|
||
};
|
||
output.paper = lib.mkOption {
|
||
type = with lib.types; nullOr str;
|
||
default = null;
|
||
description = ''
|
||
This option is for generating PostScript and PDF output. The paper
|
||
size name may be one of `a3`, `a4`, `a5`, `legal`, or `letter`.
|
||
You may also manually specify dimensions as `NNxNN`, width by
|
||
height in millimetres. If an unknown value is encountered, letter
|
||
is used. Output pages default to letter sized and are rendered in
|
||
the Times font family, 11-point. Margins are calculated as 1/9 the
|
||
page length and width. Line-height is 1.4m.
|
||
'';
|
||
};
|
||
output.style = lib.mkOption {
|
||
type = with lib.types; nullOr path;
|
||
default = null;
|
||
description = ''
|
||
Path to the file used for an external style-sheet. This must be a
|
||
valid absolute or relative URI.
|
||
'';
|
||
};
|
||
output.toc = lib.mkEnableOption ''
|
||
In HTML output of {manpage}`mandoc(1)`, If an input file contains
|
||
at least two non-standard sections, print a table of contents near
|
||
the beginning of the output.
|
||
'';
|
||
output.width = lib.mkOption {
|
||
type = with lib.types; nullOr int;
|
||
default = null;
|
||
description = ''
|
||
The ASCII and UTF-8 output width, default is `78`. When output is a
|
||
pager on a terminal that is less than 79 columns wide, the
|
||
default is reduced to one less than the terminal width. In any case,
|
||
lines that are output in literal mode are never wrapped and may
|
||
exceed the output width.
|
||
'';
|
||
};
|
||
};
|
||
};
|
||
};
|
||
|
||
extraConfig = lib.mkOption {
|
||
type = lib.types.lines;
|
||
default = "";
|
||
description = ''
|
||
Extra configuration to write to {manpage}`man.conf(5)`.
|
||
'';
|
||
};
|
||
};
|
||
};
|
||
|
||
config = lib.mkIf cfg.enable {
|
||
environment = {
|
||
systemPackages = [ cfg.package ];
|
||
|
||
etc."man.conf".text = lib.concatStringsSep "\n" (
|
||
(map (path: "manpath ${path}") cfg.settings.manpath)
|
||
++ (toMandocOutput cfg.settings.output)
|
||
++ [ cfg.extraConfig ]
|
||
);
|
||
|
||
# create mandoc.db for whatis(1), apropos(1) and man(1) -k
|
||
# TODO(@sternenseemman): fix symlinked directories not getting indexed,
|
||
# see: https://inbox.vuxu.org/mandoc-tech/20210906171231.GF83680@athene.usta.de/T/#e85f773c1781e3fef85562b2794f9cad7b2909a3c
|
||
extraSetup = lib.mkIf config.documentation.man.generateCaches ''
|
||
for man_path in ${
|
||
lib.concatMapStringsSep " " (path:
|
||
"$out/" + lib.escapeShellArg path
|
||
) cfg.manPath} ${lib.concatMapStringsSep " " (path:
|
||
lib.escapeShellArg path) cfg.settings.manpath
|
||
}
|
||
do
|
||
[[ -d "$man_path" ]] && ${makewhatis} -T utf8 $man_path
|
||
done
|
||
'';
|
||
|
||
# tell mandoc the paths containing man pages
|
||
profileRelativeSessionVariables."MANPATH" = map (path: if builtins.substring 0 1 path != "/" then "/${path}" else path) cfg.manPath;
|
||
};
|
||
};
|
||
}
|