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Merge master into staging-next

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This commit is contained in:
Frederik Rietdijk
2018-11-10 11:08:54 +01:00
parent 322f87137c 40c567de0f
commit 53d00c3351
540 changed files with 11238 additions and 7081 deletions
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1
doc/languages-frameworks/index.xml
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@@ -19,6 +19,7 @@
<xi:include href="java.xml" />
<xi:include href="lua.xml" />
<xi:include href="node.section.xml" />
<xi:include href="ocaml.xml" />
<xi:include href="perl.xml" />
<xi:include href="python.section.xml" />
<xi:include href="qt.xml" />

101
doc/languages-frameworks/ocaml.xml Normal file
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@@ -0,0 +1,101 @@
<section xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xml:id="sec-language-ocaml">
<title>OCaml</title>
<para>
OCaml libraries should be installed in
<literal>$(out)/lib/ocaml/${ocaml.version}/site-lib/</literal>. Such
directories are automatically added to the <literal>$OCAMLPATH</literal>
environment variable when building another package that depends on them
or when opening a <literal>nix-shell</literal>.
</para>
<para>
Given that most of the OCaml ecosystem is now built with dune,
nixpkgs includes a convenience build support function called
<literal>buildDunePackage</literal> that will build an OCaml package
using dune, OCaml and findlib and any additional dependencies provided
as <literal>buildInputs</literal> or <literal>propagatedBuildInputs</literal>.
</para>
<para>
Here is a simple package example. It defines an (optional) attribute
<literal>minimumOCamlVersion</literal> that will be used to throw a
descriptive evaluation error if building with an older OCaml is attempted.
It uses the <literal>fetchFromGitHub</literal> fetcher to get its source.
It sets the <literal>doCheck</literal> (optional) attribute to
<literal>true</literal> which means that tests will be run with
<literal>dune runtest -p angstrom</literal> after the build
(<literal>dune build -p angstrom</literal>) is complete.
It uses <literal>alcotest</literal> as a build input (because it is needed
to run the tests) and <literal>bigstringaf</literal> and
<literal>result</literal> as propagated build inputs (thus they will also
be available to libraries depending on this library).
The library will be installed using the <literal>angstrom.install</literal>
file that dune generates.
</para>
<programlisting>
{ stdenv, fetchFromGitHub, buildDunePackage, alcotest, result, bigstringaf }:
buildDunePackage rec {
pname = "angstrom";
version = "0.10.0";
minimumOCamlVersion = "4.03";
src = fetchFromGitHub {
owner = "inhabitedtype";
repo = pname;
rev = version;
sha256 = "0lh6024yf9ds0nh9i93r9m6p5psi8nvrqxl5x7jwl13zb0r9xfpw";
};
buildInputs = [ alcotest ];
propagatedBuildInputs = [ bigstringaf result ];
doCheck = true;
meta = {
homepage = https://github.com/inhabitedtype/angstrom;
description = "OCaml parser combinators built for speed and memory efficiency";
license = stdenv.lib.licenses.bsd3;
maintainers = with stdenv.lib.maintainers; [ sternenseemann ];
};
}
</programlisting>
<para>
Here is a second example, this time using a source archive generated with
<literal>dune-release</literal>. The <literal>unpackCmd</literal>
redefinition is necessary to be able to unpack the kind of tarball that
<literal>dune-release</literal> generates. This library does not depend
on any other OCaml library and no tests are run after building it.
</para>
<programlisting>
{ stdenv, fetchurl, buildDunePackage }:
buildDunePackage rec {
pname = "wtf8";
version = "1.0.1";
minimumOCamlVersion = "4.01";
src = fetchurl {
url = "https://github.com/flowtype/ocaml-${pname}/releases/download/v${version}/${pname}-${version}.tbz";
sha256 = "1msg3vycd3k8qqj61sc23qks541cxpb97vrnrvrhjnqxsqnh6ygq";
};
unpackCmd = "tar xjf $src";
meta = with stdenv.lib; {
homepage = https://github.com/flowtype/ocaml-wtf8;
description = "WTF-8 is a superset of UTF-8 that allows unpaired surrogates.";
license = licenses.mit;
maintainers = [ maintainers.eqyiel ];
};
}
</programlisting>
</section>

17
doc/languages-frameworks/python.section.md
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@@ -483,12 +483,12 @@ and in this case the `python35` interpreter is automatically used.
### Interpreters
Versions 2.7, 3.4, 3.5, 3.6 and 3.7 of the CPython interpreter are available as
respectively `python27`, `python34`, `python35`, `python36` and `python37`. The PyPy interpreter
is available as `pypy`. The aliases `python2` and `python3` correspond to respectively `python27` and
`python37`. The default interpreter, `python`, maps to `python2`.
The Nix expressions for the interpreters can be found in
`pkgs/development/interpreters/python`.
Versions 2.7, 3.5, 3.6 and 3.7 of the CPython interpreter are available as
respectively `python27`, `python35`, `python36` and `python37`. The PyPy
interpreter is available as `pypy`. The aliases `python2` and `python3`
correspond to respectively `python27` and `python37`. The default interpreter,
`python`, maps to `python2`. The Nix expressions for the interpreters can be
found in `pkgs/development/interpreters/python`.
All packages depending on any Python interpreter get appended
`out/{python.sitePackages}` to `$PYTHONPATH` if such directory
@@ -507,7 +507,7 @@ Each interpreter has the following attributes:
- `buildEnv`. Function to build python interpreter environments with extra packages bundled together. See section *python.buildEnv function* for usage and documentation.
- `withPackages`. Simpler interface to `buildEnv`. See section *python.withPackages function* for usage and documentation.
- `sitePackages`. Alias for `lib/${libPrefix}/site-packages`.
- `executable`. Name of the interpreter executable, e.g. `python3.4`.
- `executable`. Name of the interpreter executable, e.g. `python3.7`.
- `pkgs`. Set of Python packages for that specific interpreter. The package set can be modified by overriding the interpreter and passing `packageOverrides`.
### Building packages and applications
@@ -529,7 +529,6 @@ attribute set is created for each available Python interpreter. The available
sets are
* `pkgs.python27Packages`
* `pkgs.python34Packages`
* `pkgs.python35Packages`
* `pkgs.python36Packages`
* `pkgs.python37Packages`
@@ -837,7 +836,7 @@ community to help save time. No tool is preferred at the moment.
### Deterministic builds
Python 2.7, 3.5 and 3.6 are now built deterministically and 3.4 mostly.
The Python interpreters are now built deterministically.
Minor modifications had to be made to the interpreters in order to generate
deterministic bytecode. This has security implications and is relevant for
those using Python in a `nix-shell`.

55
doc/meta.xml
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@@ -250,6 +250,61 @@ meta.platforms = stdenv.lib.platforms.linux;
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<varname>tests</varname>
</term>
<listitem>
<para>
An attribute set with as values tests. A test is a derivation, which
builds successfully when the test passes, and fails to build otherwise. A
derivation that is a test requires some <literal>meta</literal> elements
to be defined: <literal>needsVMSupport</literal> (automatically filled-in
for NixOS tests) and <literal>timeout</literal>.
</para>
<para>
The NixOS tests are available as <literal>nixosTests</literal> in
parameters of derivations. For instance, the OpenSMTPD derivation
includes lines similar to:
<programlisting>
{ /* ... */, nixosTests }:
{
# ...
meta.tests = {
basic-functionality-and-dovecot-integration = nixosTests.opensmtpd;
};
}
</programlisting>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<varname>timeout</varname>
</term>
<listitem>
<para>
A timeout (in seconds) for building the derivation. If the derivation
takes longer than this time to build, it can fail due to breaking the
timeout. However, all computers do not have the same computing power,
hence some builders may decide to apply a multiplicative factor to this
value. When filling this value in, try to keep it approximately
consistent with other values already present in
<literal>nixpkgs</literal>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<varname>needsVMSupport</varname>
</term>
<listitem>
<para>
A boolan that states whether the derivation requires build-time support
for Virtual Machine to build successfully.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<varname>hydraPlatforms</varname>

4
doc/quick-start.xml
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@@ -147,8 +147,8 @@ $ git add pkgs/development/libraries/libfoo/default.nix</screen>
</listitem>
<listitem>
<para>
You can use <command>nix-prefetch-url</command> (or similar
nix-prefetch-git, etc) <replaceable>url</replaceable> to get the
You can use <command>nix-prefetch-url</command>
<replaceable>url</replaceable> to get the
SHA-256 hash of source distributions. There are similar commands as
<command>nix-prefetch-git</command> and
<command>nix-prefetch-hg</command> available in

17
doc/stdenv.xml
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@@ -618,7 +618,7 @@ let f(h, h + 1, i) = i + h
</variablelist>
<variablelist>
<title>Variables affecting build properties</title>
<title>Attributes affecting build properties</title>
<varlistentry>
<term>
<varname>enableParallelBuilding</varname>
@@ -637,21 +637,6 @@ let f(h, h + 1, i) = i + h
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<varname>preferLocalBuild</varname>
</term>
<listitem>
<para>
If set, specifies that the package is so lightweight in terms of build
operations (e.g. write a text file from a Nix string to the store) that
there's no need to look for it in binary caches -- it's faster to just
build it locally. It also tells Hydra and other facilities that this
package doesn't need to be exported in binary caches (noone would use it,
after all).
</para>
</listitem>
</varlistentry>
</variablelist>
<variablelist>