mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-11-25 15:26:17 +02:00
Add 2.2 release notes
This commit is contained in:
Eelco Dolstra
parent
44a8b17556
commit
bbaf865655
1 changed files with 118 additions and 4 deletions
|
|
@ -4,25 +4,139 @@
|
|||
version="5.0"
|
||||
xml:id="ssec-relnotes-2.2">
|
||||
|
||||
<title>Release 2.2 (201?-??-??)</title>
|
||||
<title>Release 2.2 (2019-01-11)</title>
|
||||
|
||||
<para>This release has the following changes:</para>
|
||||
<para>This is primarily a bug fix release. It also has the following
|
||||
changes:</para>
|
||||
|
||||
<itemizedlist>
|
||||
|
||||
<listitem>
|
||||
<para>In derivations that use structured attributes (i.e. that
|
||||
specify set the <varname>__structuredAttrs</varname> attribute to
|
||||
<literal>true</literal> to cause all attributes to be passed to
|
||||
the builder in JSON format), you can now specify closure checks
|
||||
per output, e.g.:
|
||||
|
||||
<programlisting>
|
||||
outputChecks."out" = {
|
||||
# The closure of 'out' must not be larger than 256 MiB.
|
||||
maxClosureSize = 256 * 1024 * 1024;
|
||||
|
||||
# It must not refer to C compiler or to the 'dev' output.
|
||||
disallowedRequisites = [ stdenv.cc "dev" ];
|
||||
};
|
||||
|
||||
outputChecks."dev" = {
|
||||
# The 'dev' output must not be larger than 128 KiB.
|
||||
maxSize = 128 * 1024;
|
||||
};
|
||||
</programlisting>
|
||||
|
||||
</para>
|
||||
</listitem>
|
||||
|
||||
|
||||
<listitem>
|
||||
<para>The derivation attribute
|
||||
<varname>requiredSystemFeatures</varname> is now enforced for
|
||||
local builds, and not just to route builds to remote builders.
|
||||
The supported features of a machine can be specified through the
|
||||
configuration setting <varname>system-features</varname>.
|
||||
</para>
|
||||
configuration setting <varname>system-features</varname>.</para>
|
||||
|
||||
<para>By default, <varname>system-features</varname> includes
|
||||
<literal>kvm</literal> if <filename>/dev/kvm</filename>
|
||||
exists. For compatibility, it also includes the pseudo-features
|
||||
<literal>nixos-test</literal>, <literal>benchmark</literal> and
|
||||
<literal>big-parallel</literal> which are used by Nixpkgs to route
|
||||
builds to particular Hydra build machines.</para>
|
||||
|
||||
</listitem>
|
||||
|
||||
<listitem>
|
||||
<para>Sandbox builds are now enabled by default on Linux.</para>
|
||||
</listitem>
|
||||
|
||||
<listitem>
|
||||
<para>The new command <command>nix doctor</command> shows
|
||||
potential issues with your Nix installation.</para>
|
||||
</listitem>
|
||||
|
||||
<listitem>
|
||||
<para>The <literal>fetchGit</literal> builtin function now uses a
|
||||
caching scheme that puts different remote repositories in distinct
|
||||
local repositories, rather than a single shared repository. This
|
||||
may require more disk space but is faster.</para>
|
||||
</listitem>
|
||||
|
||||
<listitem>
|
||||
<para>The <literal>dirOf</literal> builtin function now works on
|
||||
relative paths.</para>
|
||||
</listitem>
|
||||
|
||||
<listitem>
|
||||
<para>Nix now supports <link
|
||||
xlink:href="https://www.w3.org/TR/SRI/">SRI hashes</link>,
|
||||
allowing the hash algorithm and hash to be specified in a single
|
||||
string. For example, you can write:
|
||||
|
||||
<programlisting>
|
||||
import <nix/fetchurl.nix> {
|
||||
url = https://nixos.org/releases/nix/nix-2.1.3/nix-2.1.3.tar.xz;
|
||||
hash = "sha256-XSLa0FjVyADWWhFfkZ2iKTjFDda6mMXjoYMXLRSYQKQ=";
|
||||
};
|
||||
</programlisting>
|
||||
|
||||
instead of
|
||||
|
||||
<programlisting>
|
||||
import <nix/fetchurl.nix> {
|
||||
url = https://nixos.org/releases/nix/nix-2.1.3/nix-2.1.3.tar.xz;
|
||||
sha256 = "5d22dad058d5c800d65a115f919da22938c50dd6ba98c5e3a183172d149840a4";
|
||||
};
|
||||
</programlisting>
|
||||
|
||||
</para>
|
||||
|
||||
<para>In fixed-output derivations, the
|
||||
<varname>outputHashAlgo</varname> attribute is no longer mandatory
|
||||
if <varname>outputHash</varname> specifies the hash.</para>
|
||||
|
||||
<para><command>nix hash-file</command> and <command>nix
|
||||
hash-path</command> now print hashes in SRI format by
|
||||
default. They also use SHA-256 by default instead of SHA-512
|
||||
because that's what we use most of the time in Nixpkgs.</para>
|
||||
</listitem>
|
||||
|
||||
<listitem>
|
||||
<para>Integers are now 64 bits on all platforms.</para>
|
||||
</listitem>
|
||||
|
||||
<listitem>
|
||||
<para>The evaluator now prints profiling statistics (enabled via
|
||||
the <envar>NIX_SHOW_STATS</envar> and
|
||||
<envar>NIX_COUNT_CALLS</envar> environment variables) in JSON
|
||||
format.</para>
|
||||
</listitem>
|
||||
|
||||
<listitem>
|
||||
<para>The option <option>--xml</option> in <command>nix-store
|
||||
--query</command> has been removed. Instead, there now is an
|
||||
option <option>--graphml</option> to output the dependency graph
|
||||
in GraphML format.</para>
|
||||
</listitem>
|
||||
|
||||
<listitem>
|
||||
<para>All <filename>nix-*</filename> commands are now symlinks to
|
||||
<filename>nix</filename>. This saves a bit of disk space.</para>
|
||||
</listitem>
|
||||
|
||||
<listitem>
|
||||
<para><command>nix repl</command> now uses
|
||||
<literal>libeditline</literal> or
|
||||
<literal>libreadline</literal>.</para>
|
||||
</listitem>
|
||||
|
||||
</itemizedlist>
|
||||
|
||||
</section>
|
||||
|
|
|
|||
Loading…
Reference in a new issue