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nixpkgs docs: Reformat

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Graham Christensen 2018-10-02 15:59:59 -04:00
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7
doc/cross-compilation.xml
View File

@ -47,9 +47,10 @@
<para>
In Nixpkgs, these three platforms are defined as attribute sets under the
names <literal>buildPlatform</literal>, <literal>hostPlatform</literal>, and
<literal>targetPlatform</literal>. They are always defined as attributes in
the standard environment. That means one can access them like:
names <literal>buildPlatform</literal>, <literal>hostPlatform</literal>,
and <literal>targetPlatform</literal>. They are always defined as
attributes in the standard environment. That means one can access them
like:
<programlisting>{ stdenv, fooDep, barDep, .. }: ...stdenv.buildPlatform...</programlisting>
.
</para>

6
doc/functions/debug.xml
View File

@ -13,9 +13,9 @@
<para>
In the <literal>lib/debug.nix</literal> file you will find a number of
functions that help (pretty-)printing values while evaluation is runnnig.
You can even specify how deep these values should be printed recursively,
and transform them on the fly. Please consult the docstrings in
functions that help (pretty-)printing values while evaluation is runnnig. You
can even specify how deep these values should be printed recursively, and
transform them on the fly. Please consult the docstrings in
<literal>lib/debug.nix</literal> for usage information.
</para>
</section>

88
doc/functions/dockertools.xml
View File

@ -30,8 +30,8 @@
</para>
<para>
The parameters of <varname>buildImage</varname> with relative example
values are described below:
The parameters of <varname>buildImage</varname> with relative example values
are described below:
</para>
<example xml:id='ex-dockerTools-buildImage'>
@ -71,8 +71,8 @@ buildImage {
<calloutlist>
<callout arearefs='ex-dockerTools-buildImage-1'>
<para>
<varname>name</varname> specifies the name of the resulting image. This
is the only required argument for <varname>buildImage</varname>.
<varname>name</varname> specifies the name of the resulting image. This is
the only required argument for <varname>buildImage</varname>.
</para>
</callout>
<callout arearefs='ex-dockerTools-buildImage-2'>
@ -84,8 +84,8 @@ buildImage {
</callout>
<callout arearefs='ex-dockerTools-buildImage-3'>
<para>
<varname>fromImage</varname> is the repository tarball containing the
base image. It must be a valid Docker image, such as exported by
<varname>fromImage</varname> is the repository tarball containing the base
image. It must be a valid Docker image, such as exported by
<command>docker save</command>. By default it's <literal>null</literal>,
which can be seen as equivalent to <literal>FROM scratch</literal> of a
<filename>Dockerfile</filename>.
@ -111,10 +111,10 @@ buildImage {
</callout>
<callout arearefs='ex-dockerTools-buildImage-6'>
<para>
<varname>contents</varname> is a derivation that will be copied in the
new layer of the resulting image. This can be similarly seen as
<command>ADD contents/ /</command> in a <filename>Dockerfile</filename>.
By default it's <literal>null</literal>.
<varname>contents</varname> is a derivation that will be copied in the new
layer of the resulting image. This can be similarly seen as <command>ADD
contents/ /</command> in a <filename>Dockerfile</filename>. By default
it's <literal>null</literal>.
</para>
</callout>
<callout arearefs='ex-dockerTools-buildImage-runAsRoot'>
@ -146,9 +146,9 @@ buildImage {
<para>
After the new layer has been created, its closure (to which
<varname>contents</varname>, <varname>config</varname> and
<varname>runAsRoot</varname> contribute) will be copied in the layer
itself. Only new dependencies that are not already in the existing layers
will be copied.
<varname>runAsRoot</varname> contribute) will be copied in the layer itself.
Only new dependencies that are not already in the existing layers will be
copied.
</para>
<para>
@ -170,8 +170,8 @@ buildImage {
<note>
<para>
If you see errors similar to <literal>getProtocolByName: does not exist
(no such protocol name: tcp)</literal> you may need to add
If you see errors similar to <literal>getProtocolByName: does not exist (no
such protocol name: tcp)</literal> you may need to add
<literal>pkgs.iana-etc</literal> to <varname>contents</varname>.
</para>
</note>
@ -187,12 +187,11 @@ buildImage {
<example xml:id="example-pkgs-dockerTools-buildImage-creation-date">
<title>Impurely Defining a Docker Layer's Creation Date</title>
<para>
By default <function>buildImage</function> will use a static
date of one second past the UNIX Epoch. This allows
<function>buildImage</function> to produce binary reproducible
images. When listing images with <command>docker list
images</command>, the newly created images will be listed like
this:
By default <function>buildImage</function> will use a static date of one
second past the UNIX Epoch. This allows <function>buildImage</function> to
produce binary reproducible images. When listing images with
<command>docker list images</command>, the newly created images will be
listed like this:
</para>
<screen><![CDATA[
$ docker image list
@ -200,9 +199,9 @@ REPOSITORY TAG IMAGE ID CREATED SIZE
hello latest 08c791c7846e 48 years ago 25.2MB
]]></screen>
<para>
You can break binary reproducibility but have a sorted,
meaningful <literal>CREATED</literal> column by setting
<literal>created</literal> to <literal>now</literal>.
You can break binary reproducibility but have a sorted, meaningful
<literal>CREATED</literal> column by setting <literal>created</literal> to
<literal>now</literal>.
</para>
<programlisting><![CDATA[
pkgs.dockerTools.buildImage {
@ -215,8 +214,8 @@ pkgs.dockerTools.buildImage {
}
]]></programlisting>
<para>
and now the Docker CLI will display a reasonable date and
sort the images as expected:
and now the Docker CLI will display a reasonable date and sort the images
as expected:
<screen><![CDATA[
$ docker image list
REPOSITORY TAG IMAGE ID CREATED SIZE
@ -380,8 +379,8 @@ pkgs.dockerTools.buildLayeredImage {
<para>
If the produced image will not be extended by other Docker builds, it is
safe to set <varname>maxLayers</varname> to <literal>128</literal>.
However it will be impossible to extend the image further.
safe to set <varname>maxLayers</varname> to <literal>128</literal>. However
it will be impossible to extend the image further.
</para>
<para>
@ -402,10 +401,10 @@ pkgs.dockerTools.buildLayeredImage {
<title>pullImage</title>
<para>
This function is analogous to the <command>docker pull</command> command,
in that can be used to pull a Docker image from a Docker registry. By
default <link xlink:href="https://hub.docker.com/">Docker Hub</link> is
used to pull images.
This function is analogous to the <command>docker pull</command> command, in
that can be used to pull a Docker image from a Docker registry. By default
<link xlink:href="https://hub.docker.com/">Docker Hub</link> is used to pull
images.
</para>
<para>
@ -439,8 +438,8 @@ pullImage {
<varname>imageDigest</varname> specifies the digest of the image to be
downloaded. Skopeo can be used to get the digest of an image, with its
<varname>inspect</varname> subcommand. Since a given
<varname>imageName</varname> may transparently refer to a manifest list
of images which support multiple architectures and/or operating systems,
<varname>imageName</varname> may transparently refer to a manifest list of
images which support multiple architectures and/or operating systems,
supply the `--override-os` and `--override-arch` arguments to specify
exactly which image you want. By default it will match the OS and
architecture of the host the command is run on.
@ -461,8 +460,8 @@ sha256:20d9485b25ecfd89204e843a962c1bd70e9cc6858d65d7f5fadc340246e2116b
</callout>
<callout arearefs='ex-dockerTools-pullImage-4'>
<para>
<varname>sha256</varname> is the checksum of the whole fetched image.
This argument is required.
<varname>sha256</varname> is the checksum of the whole fetched image. This
argument is required.
</para>
</callout>
<callout arearefs='ex-dockerTools-pullImage-5'>
@ -485,10 +484,10 @@ sha256:20d9485b25ecfd89204e843a962c1bd70e9cc6858d65d7f5fadc340246e2116b
<para>
This function is analogous to the <command>docker export</command> command,
in that can used to flatten a Docker image that contains multiple layers.
It is in fact the result of the merge of all the layers of the image. As
such, the result is suitable for being imported in Docker with
<command>docker import</command>.
in that can used to flatten a Docker image that contains multiple layers. It
is in fact the result of the merge of all the layers of the image. As such,
the result is suitable for being imported in Docker with <command>docker
import</command>.
</para>
<note>
@ -517,9 +516,8 @@ exportImage {
<para>
The parameters relative to the base image have the same synopsis as
described in <xref linkend='ssec-pkgs-dockerTools-buildImage'/>, except
that <varname>fromImage</varname> is the only required argument in this
case.
described in <xref linkend='ssec-pkgs-dockerTools-buildImage'/>, except that
<varname>fromImage</varname> is the only required argument in this case.
</para>
<para>
@ -533,8 +531,8 @@ exportImage {
<para>
This constant string is a helper for setting up the base files for managing
users and groups, only if such files don't exist already. It is suitable
for being used in a <varname>runAsRoot</varname>
users and groups, only if such files don't exist already. It is suitable for
being used in a <varname>runAsRoot</varname>
<xref linkend='ex-dockerTools-buildImage-runAsRoot'/> script for cases like
in the example below:
</para>

24
doc/functions/fhs-environments.xml
View File

@ -9,12 +9,11 @@
FHS-compatible lightweight sandboxes. It creates an isolated root with bound
<filename>/nix/store</filename>, so its footprint in terms of disk space
needed is quite small. This allows one to run software which is hard or
unfeasible to patch for NixOS -- 3rd-party source trees with FHS
assumptions, games distributed as tarballs, software with integrity checking
and/or external self-updated binaries. It uses Linux namespaces feature to
create temporary lightweight environments which are destroyed after all
child processes exit, without root user rights requirement. Accepted
arguments are:
unfeasible to patch for NixOS -- 3rd-party source trees with FHS assumptions,
games distributed as tarballs, software with integrity checking and/or
external self-updated binaries. It uses Linux namespaces feature to create
temporary lightweight environments which are destroyed after all child
processes exit, without root user rights requirement. Accepted arguments are:
</para>
<variablelist>
@ -57,8 +56,7 @@
</term>
<listitem>
<para>
Additional commands to be executed for finalizing the directory
structure.
Additional commands to be executed for finalizing the directory structure.
</para>
</listitem>
</varlistentry>
@ -109,8 +107,8 @@
</variablelist>
<para>
One can create a simple environment using a <literal>shell.nix</literal>
like that:
One can create a simple environment using a <literal>shell.nix</literal> like
that:
</para>
<programlisting><![CDATA[
@ -136,9 +134,9 @@
<para>
Running <literal>nix-shell</literal> would then drop you into a shell with
these libraries and binaries available. You can use this to run
closed-source applications which expect FHS structure without hassles:
simply change <literal>runScript</literal> to the application path, e.g.
these libraries and binaries available. You can use this to run closed-source
applications which expect FHS structure without hassles: simply change
<literal>runScript</literal> to the application path, e.g.
<filename>./bin/start.sh</filename> -- relative paths are supported.
</para>
</section>

11
doc/functions/generators.xml
View File

@ -14,12 +14,11 @@
All generators follow a similar call interface: <code>generatorName
configFunctions data</code>, where <literal>configFunctions</literal> is an
attrset of user-defined functions that format nested parts of the content.
They each have common defaults, so often they do not need to be set
manually. An example is <code>mkSectionName ? (name: libStr.escape [ "[" "]"
] name)</code> from the <literal>INI</literal> generator. It receives the
name of a section and sanitizes it. The default
<literal>mkSectionName</literal> escapes <literal>[</literal> and
<literal>]</literal> with a backslash.
They each have common defaults, so often they do not need to be set manually.
An example is <code>mkSectionName ? (name: libStr.escape [ "[" "]" ]
name)</code> from the <literal>INI</literal> generator. It receives the name
of a section and sanitizes it. The default <literal>mkSectionName</literal>
escapes <literal>[</literal> and <literal>]</literal> with a backslash.
</para>
<para>

40
doc/functions/overrides.xml
View File

@ -81,17 +81,16 @@ helloWithDebug = pkgs.hello.overrideAttrs (oldAttrs: rec {
<note>
<para>
Note that <varname>separateDebugInfo</varname> is processed only by the
<varname>stdenv.mkDerivation</varname> function, not the generated, raw
Nix derivation. Thus, using <varname>overrideDerivation</varname> will not
work in this case, as it overrides only the attributes of the final
derivation. It is for this reason that <varname>overrideAttrs</varname>
should be preferred in (almost) all cases to
<varname>overrideDerivation</varname>, i.e. to allow using
<varname>sdenv.mkDerivation</varname> to process input arguments, as well
as the fact that it is easier to use (you can use the same attribute names
you see in your Nix code, instead of the ones generated (e.g.
<varname>buildInputs</varname> vs <varname>nativeBuildInputs</varname>,
and involves less typing.
<varname>stdenv.mkDerivation</varname> function, not the generated, raw Nix
derivation. Thus, using <varname>overrideDerivation</varname> will not work
in this case, as it overrides only the attributes of the final derivation.
It is for this reason that <varname>overrideAttrs</varname> should be
preferred in (almost) all cases to <varname>overrideDerivation</varname>,
i.e. to allow using <varname>sdenv.mkDerivation</varname> to process input
arguments, as well as the fact that it is easier to use (you can use the
same attribute names you see in your Nix code, instead of the ones
generated (e.g. <varname>buildInputs</varname> vs
<varname>nativeBuildInputs</varname>, and involves less typing.
</para>
</note>
</section>
@ -101,8 +100,8 @@ helloWithDebug = pkgs.hello.overrideAttrs (oldAttrs: rec {
<warning>
<para>
You should prefer <varname>overrideAttrs</varname> in almost all cases,
see its documentation for the reasons why.
You should prefer <varname>overrideAttrs</varname> in almost all cases, see
its documentation for the reasons why.
<varname>overrideDerivation</varname> is not deprecated and will continue
to work, but is less nice to use and does not have as many abilities as
<varname>overrideAttrs</varname>.
@ -115,18 +114,17 @@ helloWithDebug = pkgs.hello.overrideAttrs (oldAttrs: rec {
modifying it, which breaks package abstraction and removes error-checking
of function arguments. In addition, this evaluation-per-function
application incurs a performance penalty, which can become a problem if
many overrides are used. It is only intended for ad-hoc customisation,
such as in <filename>~/.config/nixpkgs/config.nix</filename>.
many overrides are used. It is only intended for ad-hoc customisation, such
as in <filename>~/.config/nixpkgs/config.nix</filename>.
</para>
</warning>
<para>
The function <varname>overrideDerivation</varname> creates a new derivation
based on an existing one by overriding the original's attributes with the
attribute set produced by the specified function. This function is
available on all derivations defined using the
<varname>makeOverridable</varname> function. Most standard
derivation-producing functions, such as
attribute set produced by the specified function. This function is available
on all derivations defined using the <varname>makeOverridable</varname>
function. Most standard derivation-producing functions, such as
<varname>stdenv.mkDerivation</varname>, are defined using this function,
which means most packages in the nixpkgs expression,
<varname>pkgs</varname>, have this function.
@ -197,8 +195,8 @@ c = lib.makeOverridable f { a = 1; b = 2; };
<para>
The variable <varname>c</varname> however also has some additional
functions, like <link linkend="sec-pkg-override">c.override</link> which
can be used to override the default arguments. In this example the value of
functions, like <link linkend="sec-pkg-override">c.override</link> which can
be used to override the default arguments. In this example the value of
<varname>(c.override { a = 4; }).result</varname> is 6.
</para>
</section>

7
doc/functions/shell.xml
View File

@ -5,10 +5,9 @@
<title>pkgs.mkShell</title>
<para>
<function>pkgs.mkShell</function> is a special kind of derivation
that is only useful when using it combined with
<command>nix-shell</command>. It will in fact fail to instantiate
when invoked with <command>nix-build</command>.
<function>pkgs.mkShell</function> is a special kind of derivation that is
only useful when using it combined with <command>nix-shell</command>. It will
in fact fail to instantiate when invoked with <command>nix-build</command>.
</para>
<section xml:id="sec-pkgs-mkShell-usage">

70
doc/package-notes.xml
View File

@ -671,8 +671,9 @@ overrides = self: super: rec {
plugins = with availablePlugins; [ python perl ];
}
}</programlisting>
If the <literal>configure</literal> function returns an attrset without the <literal>plugins</literal>
attribute, <literal>availablePlugins</literal> will be used automatically.
If the <literal>configure</literal> function returns an attrset without the
<literal>plugins</literal> attribute, <literal>availablePlugins</literal>
will be used automatically.
</para>
<para>
@ -706,9 +707,11 @@ overrides = self: super: rec {
}; }
</programlisting>
</para>
<para>
WeeChat allows to set defaults on startup using the <literal>--run-command</literal>.
The <literal>configure</literal> method can be used to pass commands to the program:
WeeChat allows to set defaults on startup using the
<literal>--run-command</literal>. The <literal>configure</literal> method
can be used to pass commands to the program:
<programlisting>weechat.override {
configure = { availablePlugins, ... }: {
init = ''
@ -720,9 +723,11 @@ overrides = self: super: rec {
Further values can be added to the list of commands when running
<literal>weechat --run-command "your-commands"</literal>.
</para>
<para>
Additionally it's possible to specify scripts to be loaded when starting <literal>weechat</literal>.
These will be loaded before the commands from <literal>init</literal>:
Additionally it's possible to specify scripts to be loaded when starting
<literal>weechat</literal>. These will be loaded before the commands from
<literal>init</literal>:
<programlisting>weechat.override {
configure = { availablePlugins, ... }: {
scripts = with pkgs.weechatScripts; [
@ -734,11 +739,13 @@ overrides = self: super: rec {
};
}</programlisting>
</para>
<para>
In <literal>nixpkgs</literal> there's a subpackage which contains derivations for
WeeChat scripts. Such derivations expect a <literal>passthru.scripts</literal> attribute
which contains a list of all scripts inside the store path. Furthermore all scripts
have to live in <literal>$out/share</literal>. An exemplary derivation looks like this:
In <literal>nixpkgs</literal> there's a subpackage which contains
derivations for WeeChat scripts. Such derivations expect a
<literal>passthru.scripts</literal> attribute which contains a list of all
scripts inside the store path. Furthermore all scripts have to live in
<literal>$out/share</literal>. An exemplary derivation looks like this:
<programlisting>{ stdenv, fetchurl }:
stdenv.mkDerivation {
@ -817,20 +824,26 @@ citrix_receiver.override {
<section xml:id="sec-ibus-typing-booster">
<title>ibus-engines.typing-booster</title>
<para>This package is an ibus-based completion method to speed up typing.</para>
<para>
This package is an ibus-based completion method to speed up typing.
</para>
<section xml:id="sec-ibus-typing-booster-activate">
<title>Activating the engine</title>
<para>
IBus needs to be configured accordingly to activate <literal>typing-booster</literal>. The configuration
depends on the desktop manager in use. For detailed instructions, please refer to the
<link xlink:href="https://mike-fabian.github.io/ibus-typing-booster/documentation.html">upstream docs</link>.
IBus needs to be configured accordingly to activate
<literal>typing-booster</literal>. The configuration depends on the desktop
manager in use. For detailed instructions, please refer to the
<link xlink:href="https://mike-fabian.github.io/ibus-typing-booster/documentation.html">upstream
docs</link>.
</para>
<para>
On NixOS you need to explicitly enable <literal>ibus</literal> with given engines
before customizing your desktop to use <literal>typing-booster</literal>. This can be achieved
using the <literal>ibus</literal> module:
On NixOS you need to explicitly enable <literal>ibus</literal> with given
engines before customizing your desktop to use
<literal>typing-booster</literal>. This can be achieved using the
<literal>ibus</literal> module:
<programlisting>{ pkgs, ... }: {
i18n.inputMethod = {
enabled = "ibus";
@ -844,17 +857,20 @@ citrix_receiver.override {
<title>Using custom hunspell dictionaries</title>
<para>
The IBus engine is based on <literal>hunspell</literal> to support completion in many languages.
By default the dictionaries <literal>de-de</literal>, <literal>en-us</literal>, <literal>es-es</literal>,
<literal>it-it</literal>, <literal>sv-se</literal> and <literal>sv-fi</literal>
are in use. To add another dictionary, the package can be overridden like this:
The IBus engine is based on <literal>hunspell</literal> to support
completion in many languages. By default the dictionaries
<literal>de-de</literal>, <literal>en-us</literal>,
<literal>es-es</literal>, <literal>it-it</literal>,
<literal>sv-se</literal> and <literal>sv-fi</literal> are in use. To add
another dictionary, the package can be overridden like this:
<programlisting>ibus-engines.typing-booster.override {
langs = [ "de-at" "en-gb" ];
}</programlisting>
</para>
<para>
<emphasis>Note: each language passed to <literal>langs</literal> must be an attribute name in
<literal>pkgs.hunspellDicts</literal>.</emphasis>
<emphasis>Note: each language passed to <literal>langs</literal> must be an
attribute name in <literal>pkgs.hunspellDicts</literal>.</emphasis>
</para>
</section>
@ -862,10 +878,12 @@ citrix_receiver.override {
<title>Built-in emoji picker</title>
<para>
The <literal>ibus-engines.typing-booster</literal> package contains a program
named <literal>emoji-picker</literal>. To display all emojis correctly,
a special font such as <literal>noto-fonts-emoji</literal> is needed:
The <literal>ibus-engines.typing-booster</literal> package contains a
program named <literal>emoji-picker</literal>. To display all emojis
correctly, a special font such as <literal>noto-fonts-emoji</literal> is
needed:
</para>
<para>
On NixOS it can be installed using the following expression:
<programlisting>{ pkgs, ... }: {