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Merge pull request #32424 from oxij/nixos/related-packages

nixos: doc: implement related packages in the manual
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Arseniy Seroka 2017-12-23 03:34:58 +03:00 committed by GitHub
commit 36e02645eb
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12 changed files with 133 additions and 26 deletions

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@ -56,7 +56,7 @@ let
replaceStrings seq stringLength sub substring tail;
inherit (trivial) id const concat or and boolToString mergeAttrs
flip mapNullable inNixShell min max importJSON warn info
nixpkgsVersion mod;
nixpkgsVersion mod compare splitByAndCompare;
inherit (fixedPoints) fix fix' extends composeExtensions
makeExtensible makeExtensibleWithCustomName;
@ -71,8 +71,8 @@ let
inherit (lists) singleton foldr fold foldl foldl' imap0 imap1
concatMap flatten remove findSingle findFirst any all count
optional optionals toList range partition zipListsWith zipLists
reverseList listDfs toposort sort take drop sublist last init
crossLists unique intersectLists subtractLists
reverseList listDfs toposort sort compareLists take drop sublist
last init crossLists unique intersectLists subtractLists
mutuallyExclusive;
inherit (strings) concatStrings concatMapStrings concatImapStrings
intersperse concatStringsSep concatMapStringsSep

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@ -385,6 +385,30 @@ rec {
if len < 2 then list
else (sort strictLess pivot.left) ++ [ first ] ++ (sort strictLess pivot.right));
/* Compare two lists element-by-element.
Example:
compareLists compare [] []
=> 0
compareLists compare [] [ "a" ]
=> -1
compareLists compare [ "a" ] []
=> 1
compareLists compare [ "a" "b" ] [ "a" "c" ]
=> 1
*/
compareLists = cmp: a: b:
if a == []
then if b == []
then 0
else -1
else if b == []
then 1
else let rel = cmp (head a) (head b); in
if rel == 0
then compareLists cmp (tail a) (tail b)
else rel;
/* Return the first (at most) N elements of a list.
Example:

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@ -14,6 +14,7 @@ rec {
, defaultText ? null # Textual representation of the default, for in the manual.
, example ? null # Example value used in the manual.
, description ? null # String describing the option.
, relatedPackages ? null # Related packages used in the manual.
, type ? null # Option type, providing type-checking and value merging.
, apply ? null # Function that converts the option value to something else.
, internal ? null # Whether the option is for NixOS developers only.
@ -76,7 +77,6 @@ rec {
getValues = map (x: x.value);
getFiles = map (x: x.file);
# Generate documentation template from the list of option declaration like
# the set generated with filterOptionSets.
optionAttrSetToDocList = optionAttrSetToDocList' [];
@ -93,9 +93,10 @@ rec {
readOnly = opt.readOnly or false;
type = opt.type.description or null;
}
// (if opt ? example then { example = scrubOptionValue opt.example; } else {})
// (if opt ? default then { default = scrubOptionValue opt.default; } else {})
// (if opt ? defaultText then { default = opt.defaultText; } else {});
// optionalAttrs (opt ? example) { example = scrubOptionValue opt.example; }
// optionalAttrs (opt ? default) { default = scrubOptionValue opt.default; }
// optionalAttrs (opt ? defaultText) { default = opt.defaultText; }
// optionalAttrs (opt ? relatedPackages && opt.relatedPackages != null) { inherit (opt) relatedPackages; };
subOptions =
let ss = opt.type.getSubOptions opt.loc;

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@ -81,6 +81,31 @@ rec {
*/
mod = base: int: base - (int * (builtins.div base int));
/* C-style comparisons
a < b => -1
a == b => 0
a > b => 1
*/
compare = a: b:
if a < b
then -1
else if a > b
then 1
else 0;
/* Split type into two subtypes by predicate `p`, assume
forall x y . x < y if p x == true && p y == false
compare elements of the same subtype with `yes` and `no`
comparisons respectively.
*/
splitByAndCompare = p: yes: no: a: b:
if p a
then if p b then yes a b else -1
else if p b then 1 else no a b;
/* Reads a JSON file. */
importJSON = path:
builtins.fromJSON (builtins.readFile path);

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@ -15,13 +15,27 @@ let
else if builtins.isFunction x then "<function>"
else x;
# Clean up declaration sites to not refer to the NixOS source tree.
# Generate DocBook documentation for a list of packages
genRelatedPackages = packages:
let
unpack = p: if lib.isString p then { name = p; } else p;
describe = { name, package ? pkgs.${name}, comment ? "" }:
"<listitem>"
+ "<para><option>pkgs.${name}</option> (${package.name}): ${package.meta.description or "???"}.</para>"
+ lib.optionalString (comment != "") "\n<para>${comment}</para>"
# Lots of `longDescription's break DocBook, so we just wrap them into <programlisting>
+ lib.optionalString (package.meta ? longDescription) "\n<programlisting>${package.meta.longDescription}</programlisting>"
+ "</listitem>";
in "<itemizedlist>${lib.concatStringsSep "\n" (map (p: describe (unpack p)) packages)}</itemizedlist>";
optionsList' = lib.flip map optionsList (opt: opt // {
# Clean up declaration sites to not refer to the NixOS source tree.
declarations = map stripAnyPrefixes opt.declarations;
}
// lib.optionalAttrs (opt ? example) { example = substFunction opt.example; }
// lib.optionalAttrs (opt ? default) { default = substFunction opt.default; }
// lib.optionalAttrs (opt ? type) { type = substFunction opt.type; });
// lib.optionalAttrs (opt ? type) { type = substFunction opt.type; }
// lib.optionalAttrs (opt ? relatedPackages) { relatedPackages = genRelatedPackages opt.relatedPackages; });
# We need to strip references to /nix/store/* from options,
# including any `extraSources` if some modules came from elsewhere,
@ -32,8 +46,22 @@ let
prefixesToStrip = map (p: "${toString p}/") ([ ../../.. ] ++ extraSources);
stripAnyPrefixes = lib.flip (lib.fold lib.removePrefix) prefixesToStrip;
# Custom "less" that pushes up all the things ending in ".enable*"
# and ".package"
optionListLess = a: b:
let
splt = lib.splitString ".";
ise = lib.hasPrefix "enable";
isp = lib.hasPrefix "package";
cmp = lib.splitByAndCompare ise lib.compare
(lib.splitByAndCompare isp lib.compare lib.compare);
in lib.compareLists cmp (splt a) (splt b) < 0;
# Customly sort option list for the man page.
optionsList'' = lib.sort (a: b: optionListLess a.name b.name) optionsList';
# Convert the list of options into an XML file.
optionsXML = builtins.toFile "options.xml" (builtins.toXML optionsList');
optionsXML = builtins.toFile "options.xml" (builtins.toXML optionsList'');
optionsDocBook = runCommand "options-db.xml" {} ''
optionsXML=${optionsXML}

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@ -70,6 +70,15 @@
</para>
</xsl:if>
<xsl:if test="attr[@name = 'relatedPackages']">
<para>
<emphasis>Related packages:</emphasis>
<xsl:text> </xsl:text>
<xsl:value-of disable-output-escaping="yes"
select="attr[@name = 'relatedPackages']/string/@value" />
</para>
</xsl:if>
<xsl:if test="count(attr[@name = 'declarations']/list/*) != 0">
<para>
<emphasis>Declared by:</emphasis>

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@ -61,7 +61,12 @@ in {
options = {
programs.tmux = {
enable = mkEnableOption "<command>tmux</command> - a <command>screen</command> replacement.";
enable = mkOption {
type = types.bool;
default = false;
description = "Whenever to configure <command>tmux</command> system-wide.";
relatedPackages = [ "tmux" ];
};
aggressiveResize = mkOption {
default = false;

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@ -207,6 +207,7 @@ with lib;
"Set the option `services.xserver.displayManager.sddm.package' instead.")
(mkRemovedOptionModule [ "fonts" "fontconfig" "forceAutohint" ] "")
(mkRemovedOptionModule [ "fonts" "fontconfig" "renderMonoTTFAsBitmap" ] "")
(mkRemovedOptionModule [ "virtualisation" "xen" "qemu" ] "You don't need this option anymore, it will work without it.")
# ZSH
(mkRenamedOptionModule [ "programs" "zsh" "enableSyntaxHighlighting" ] [ "programs" "zsh" "syntaxHighlighting" "enable" ])
@ -217,5 +218,8 @@ with lib;
(mkRenamedOptionModule [ "programs" "zsh" "oh-my-zsh" "theme" ] [ "programs" "zsh" "ohMyZsh" "theme" ])
(mkRenamedOptionModule [ "programs" "zsh" "oh-my-zsh" "custom" ] [ "programs" "zsh" "ohMyZsh" "custom" ])
(mkRenamedOptionModule [ "programs" "zsh" "oh-my-zsh" "plugins" ] [ "programs" "zsh" "ohMyZsh" "plugins" ])
# Xen
(mkRenamedOptionModule [ "virtualisation" "xen" "qemu-package" ] [ "virtualisation" "xen" "package-qemu" ])
];
}

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@ -35,24 +35,19 @@ in
description = ''
The package used for Xen binary.
'';
relatedPackages = [ "xen" "xen-light" ];
};
virtualisation.xen.qemu = mkOption {
type = types.path;
defaultText = "\${pkgs.xen}/lib/xen/bin/qemu-system-i386";
example = literalExample "''${pkgs.qemu_xen-light}/bin/qemu-system-i386";
description = ''
The qemu binary to use for Dom-0 backend.
'';
};
virtualisation.xen.qemu-package = mkOption {
virtualisation.xen.package-qemu = mkOption {
type = types.package;
defaultText = "pkgs.xen";
example = literalExample "pkgs.qemu_xen-light";
description = ''
The package with qemu binaries for xendomains.
The package with qemu binaries for dom0 qemu and xendomains.
'';
relatedPackages = [ "xen"
{ name = "qemu_xen-light"; comment = "For use with pkgs.xen-light."; }
];
};
virtualisation.xen.bootParams =
@ -158,8 +153,7 @@ in
} ];
virtualisation.xen.package = mkDefault pkgs.xen;
virtualisation.xen.qemu = mkDefault "${pkgs.xen}/lib/xen/bin/qemu-system-i386";
virtualisation.xen.qemu-package = mkDefault pkgs.xen;
virtualisation.xen.package-qemu = mkDefault pkgs.xen;
virtualisation.xen.stored = mkDefault "${cfg.package}/bin/oxenstored";
environment.systemPackages = [ cfg.package ];
@ -339,7 +333,8 @@ in
after = [ "xen-console.service" ];
requires = [ "xen-store.service" ];
serviceConfig.ExecStart = ''
${cfg.qemu} -xen-attach -xen-domid 0 -name dom0 -M xenpv \
${cfg.package-qemu}/${cfg.package-qemu.qemu-system-i386} \
-xen-attach -xen-domid 0 -name dom0 -M xenpv \
-nographic -monitor /dev/null -serial /dev/null -parallel /dev/null
'';
};
@ -448,7 +443,7 @@ in
before = [ "dhcpd.service" ];
restartIfChanged = false;
serviceConfig.RemainAfterExit = "yes";
path = [ cfg.package cfg.qemu-package ];
path = [ cfg.package cfg.package-qemu ];
environment.XENDOM_CONFIG = "${cfg.package}/etc/sysconfig/xendomains";
preStart = "mkdir -p /var/lock/subsys -m 755";
serviceConfig.ExecStart = "${cfg.package}/etc/init.d/xendomains start";

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@ -101,6 +101,10 @@ stdenv.mkDerivation rec {
else if stdenv.isAarch64 then ''makeWrapper $out/bin/qemu-system-aarch64 $out/bin/qemu-kvm --add-flags "\$([ -e /dev/kvm ] && echo -enable-kvm)"''
else "";
passthru = {
qemu-system-i386 = "bin/qemu-system-i386";
};
meta = with stdenv.lib; {
homepage = http://www.qemu.org/;
description = "A generic and open source machine emulator and virtualizer";

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@ -248,4 +248,10 @@ callPackage (import ./generic.nix (rec {
-i tools/libxl/libxl_device.c
'';
passthru = {
qemu-system-i386 = if withInternalQemu
then "lib/xen/bin/qemu-system-i386"
else throw "this xen has no qemu builtin";
};
})) ({ ocamlPackages = ocamlPackages_4_02; } // args)

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@ -176,4 +176,10 @@ callPackage (import ./generic.nix (rec {
-i tools/libxl/libxl_device.c
'';
passthru = {
qemu-system-i386 = if withInternalQemu
then "lib/xen/bin/qemu-system-i386"
else throw "this xen has no qemu builtin";
};
})) args