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authorVincent Ambo <tazjin@google.com>2020-05-17T14·52+0100
committerVincent Ambo <tazjin@google.com>2020-05-17T14·52+0100
commit7994fd1d545cc5c876d6f21db7ddf9185d23dad6 (patch)
tree32dd695785378c5b9c8be97fc583e9dfc62cb105 /third_party/nix/doc/manual/release-notes/rl-1.8.xml
parentcf8cd640c1adf74a3706efbcb0ea4625da106fb2 (diff)
parent90b3b31dc27f31e9b11653a636025d29ddb087a3 (diff)
Add 'third_party/nix/' from commit 'be66c7a6b24e3c3c6157fd37b86c7203d14acf10' r/724
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+<section xmlns="http://docbook.org/ns/docbook"
+      xmlns:xlink="http://www.w3.org/1999/xlink"
+      xmlns:xi="http://www.w3.org/2001/XInclude"
+      version="5.0"
+      xml:id="ssec-relnotes-1.8">
+
+<title>Release 1.8 (2014-12-14)</title>
+
+<itemizedlist>
+
+  <listitem><para>Breaking change: to address a race condition, the
+  remote build hook mechanism now uses <command>nix-store
+  --serve</command> on the remote machine. This requires build slaves
+  to be updated to Nix 1.8.</para></listitem>
+
+  <listitem><para>Nix now uses HTTPS instead of HTTP to access the
+  default binary cache,
+  <literal>cache.nixos.org</literal>.</para></listitem>
+
+  <listitem><para><command>nix-env</command> selectors are now regular
+  expressions. For instance, you can do
+
+<screen>
+$ nix-env -qa '.*zip.*'
+</screen>
+
+  to query all packages with a name containing
+  <literal>zip</literal>.</para></listitem>
+
+  <listitem><para><command>nix-store --read-log</command> can now
+  fetch remote build logs. If a build log is not available locally,
+  then ‘nix-store -l’ will now try to download it from the servers
+  listed in the ‘log-servers’ option in nix.conf. For instance, if you
+  have the configuration option
+
+<programlisting>
+log-servers = http://hydra.nixos.org/log
+</programlisting>
+
+then it will try to get logs from
+<literal>http://hydra.nixos.org/log/<replaceable>base name of the
+store path</replaceable></literal>. This allows you to do things like:
+
+<screen>
+$ nix-store -l $(which xterm)
+</screen>
+
+  and get a log even if <command>xterm</command> wasn't built
+  locally.</para></listitem>
+
+  <listitem><para>New builtin functions:
+  <function>attrValues</function>, <function>deepSeq</function>,
+  <function>fromJSON</function>, <function>readDir</function>,
+  <function>seq</function>.</para></listitem>
+
+  <listitem><para><command>nix-instantiate --eval</command> now has a
+  <option>--json</option> flag to print the resulting value in JSON
+  format.</para></listitem>
+
+  <listitem><para><command>nix-copy-closure</command> now uses
+  <command>nix-store --serve</command> on the remote side to send or
+  receive closures. This fixes a race condition between
+  <command>nix-copy-closure</command> and the garbage
+  collector.</para></listitem>
+
+  <listitem><para>Derivations can specify the new special attribute
+  <varname>allowedRequisites</varname>, which has a similar meaning to
+  <varname>allowedReferences</varname>. But instead of only enforcing
+  to explicitly specify the immediate references, it requires the
+  derivation to specify all the dependencies recursively (hence the
+  name, requisites) that are used by the resulting
+  output.</para></listitem>
+
+  <listitem><para>On Mac OS X, Nix now handles case collisions when
+  importing closures from case-sensitive file systems. This is mostly
+  useful for running NixOps on Mac OS X.</para></listitem>
+
+  <listitem><para>The Nix daemon has new configuration options
+  <option>allowed-users</option> (specifying the users and groups that
+  are allowed to connect to the daemon) and
+  <option>trusted-users</option> (specifying the users and groups that
+  can perform privileged operations like specifying untrusted binary
+  caches).</para></listitem>
+
+  <listitem><para>The configuration option
+  <option>build-cores</option> now defaults to the number of available
+  CPU cores.</para></listitem>
+
+  <listitem><para>Build users are now used by default when Nix is
+  invoked as root. This prevents builds from accidentally running as
+  root.</para></listitem>
+
+  <listitem><para>Nix now includes systemd units and Upstart
+  jobs.</para></listitem>
+
+  <listitem><para>Speed improvements to <command>nix-store
+  --optimise</command>.</para></listitem>
+
+  <listitem><para>Language change: the <literal>==</literal> operator
+  now ignores string contexts (the “dependencies” of a
+  string).</para></listitem>
+
+  <listitem><para>Nix now filters out Nix-specific ANSI escape
+  sequences on standard error. They are supposed to be invisible, but
+  some terminals show them anyway.</para></listitem>
+
+  <listitem><para>Various commands now automatically pipe their output
+  into the pager as specified by the <envar>PAGER</envar> environment
+  variable.</para></listitem>
+
+  <listitem><para>Several improvements to reduce memory consumption in
+  the evaluator.</para></listitem>
+
+</itemizedlist>
+
+<para>This release has contributions from Adam Szkoda, Aristid
+Breitkreuz, Bob van der Linden, Charles Strahan, darealshinji, Eelco
+Dolstra, Gergely Risko, Joel Taylor, Ludovic Courtès, Marko Durkovic,
+Mikey Ariel, Paul Colomiets, Ricardo M.  Correia, Ricky Elrod, Robert
+Helgesson, Rob Vermaas, Russell O'Connor, Shea Levy, Shell Turner,
+Sönke Hahn, Steve Purcell, Vladimír Čunát and Wout Mertens.</para>
+
+</section>