Merge branch 'master' into staging

A few trivial conflicts due to *Platforms mass replace.

default.nix

@@ -15,6 +15,12 @@ if ! builtins ? nixVersion || builtins.compareVersions requiredVersion builtins.
       it is safe to upgrade by running it again:
 
           curl https://nixos.org/nix/install | sh
+
+    For more information, please see the NixOS release notes at
+    https://nixos.org/nixos/manual or locally at
+    ${toString ./doc/manual/release-notes}.
+
+    If you need further help, see https://nixos.org/nixos/support.html
   ''
 
 else

doc/languages-frameworks/node.section.md

@@ -14,7 +14,7 @@ project.
 
 The package set also provides support for multiple Node.js versions. The policy
 is that a new package should be added to the collection for the latest stable LTS
-release (which is currently 6.x), unless there is an explicit reason to support
+release (which is currently 8.x), unless there is an explicit reason to support
 a different release.
 
 If your package uses native addons, you need to examine what kind of native
@@ -26,7 +26,7 @@ build system it uses. Here are some examples:
 
 After you have identified the correct system, you need to override your package
 expression while adding in build system as a build input. For example, `dat`
-requires `node-gyp-build`, so we override its expression in `default-v6.nix`:
+requires `node-gyp-build`, so we override its expression in `default-v8.nix`:
 
 ```nix
 dat = nodePackages.dat.override (oldAttrs: {
@@ -36,14 +36,14 @@ dat = nodePackages.dat.override (oldAttrs: {
 
 To add a package from NPM to nixpkgs:
 
- 1. Modify `pkgs/development/node-packages/node-packages-v6.json` to add, update
-    or remove package entries. (Or `pkgs/development/node-packages/node-packages-v4.json`
-    for packages depending on Node.js 4.x)
+ 1. Modify `pkgs/development/node-packages/node-packages-v8.json` to add, update
+    or remove package entries. (Or `pkgs/development/node-packages/node-packages-v10.json`
+    for packages depending on Node.js 10.x)
  2. Run the script: `(cd pkgs/development/node-packages && ./generate.sh)`.
  3. Build your new package to test your changes:
     `cd /path/to/nixpkgs && nix-build -A nodePackages.<new-or-updated-package>`.
-    To build against a specific Node.js version (e.g. 4.x):
-    `nix-build -A nodePackages_4_x.<new-or-updated-package>`
+    To build against a specific Node.js version (e.g. 10.x):
+    `nix-build -A nodePackages_10_x.<new-or-updated-package>`
  4. Add and commit all modified and generated files.
 
 For more information about the generation process, consult the

doc/languages-frameworks/python.section.md

@@ -1074,4 +1074,5 @@ Following rules are desired to be respected:
 * Make sure libraries build for all Python interpreters.
 * By default we enable tests. Make sure the tests are found and, in the case of libraries, are passing for all interpreters. If certain tests fail they can be disabled individually. Try to avoid disabling the tests altogether. In any case, when you disable tests, leave a comment explaining why.
 * Commit names of Python libraries should reflect that they are Python libraries, so write for example `pythonPackages.numpy: 1.11 -> 1.12`.
-
+* Attribute names in `python-packages.nix` should be normalized according to [PEP 0503](https://www.python.org/dev/peps/pep-0503/#normalized-names).
+  This means that characters should be converted to lowercase and `.` and `_` should be replaced by a single `-` (foo-bar-baz instead of Foo__Bar.baz )

doc/languages-frameworks/rust.section.md

@@ -93,8 +93,8 @@ Now, the file produced by the call to `carnix`, called `hello.nix`, looks like:
 
 ```
 # Generated by carnix 0.6.5: carnix -o hello.nix --src ./. Cargo.lock --standalone
-{ lib, buildPlatform, buildRustCrate, fetchgit }:
-let kernel = buildPlatform.parsed.kernel.name;
+{ lib, stdenv, buildRustCrate, fetchgit }:
+let kernel = stdenv.buildPlatform.parsed.kernel.name;
     # ... (content skipped)
 in
 rec {
@@ -122,8 +122,8 @@ following nix file:
 
 ```
 # Generated by carnix 0.6.5: carnix -o hello.nix --src ./. Cargo.lock --standalone
-{ lib, buildPlatform, buildRustCrate, fetchgit }:
-let kernel = buildPlatform.parsed.kernel.name;
+{ lib, stdenv, buildRustCrate, fetchgit }:
+let kernel = stdenv.buildPlatform.parsed.kernel.name;
     # ... (content skipped)
 in
 rec {

doc/old/cross.txt

@@ -78,7 +78,7 @@ Step 2: build kernel headers for the target architecture
 ---
 {stdenv, fetchurl}:
 
-assert stdenv.system == "i686-linux";
+assert stdenv.buildPlatform.system == "i686-linux";
 
 stdenv.mkDerivation {
   name = "linux-headers-2.6.13.1-arm";

doc/stdenv.xml

@@ -1732,14 +1732,37 @@ set debug-file-directory ~/.nix-profile/lib/debug
        Controls whether the installCheck phase is executed. By default it is
        skipped, but if <varname>doInstallCheck</varname> is set to true, the
        installCheck phase is usually executed. Thus you should set
-<programlisting>doInstallCheck = true;</programlisting>
+       <programlisting>doInstallCheck = true;</programlisting>
        in the derivation to enable install checks. The exception is cross
        compilation. Cross compiled builds never run tests, no matter how
        <varname>doInstallCheck</varname> is set, as the newly-built program
        won't run on the platform used to build it.
       </para>
      </listitem>
     </varlistentry>
+    <varlistentry>
+     <term>
+      <varname>installCheckTarget</varname>
+     </term>
+     <listitem>
+      <para>
+       The make target that runs the install tests. Defaults to
+       <literal>installcheck</literal>.
+      </para>
+     </listitem>
+    </varlistentry>
+    <varlistentry>
+     <term>
+      <varname>installCheckFlags</varname> / <varname>installCheckFlagsArray</varname>
+     </term>
+     <listitem>
+      <para>
+       A list of strings passed as additional flags to <command>make</command>.
+       Like <varname>makeFlags</varname> and <varname>makeFlagsArray</varname>,
+       but only used by the installCheck phase.
+      </para>
+     </listitem>
+    </varlistentry>
     <varlistentry>
      <term>
       <varname>installCheckInputs</varname>

lib/attrsets.nix

@@ -145,7 +145,7 @@ rec {
   foldAttrs = op: nul: list_of_attrs:
     fold (n: a:
         fold (name: o:
-          o // (listToAttrs [{inherit name; value = op n.${name} (a.${name} or nul); }])
+          o // { ${name} = op n.${name} (a.${name} or nul); }
         ) a (attrNames n)
     ) {} list_of_attrs;
 

lib/minver.nix

@@ -1,2 +1,2 @@
 # Expose the minimum required version for evaluating Nixpkgs
-"1.11"
+"2.0"

lib/modules.nix

@@ -192,29 +192,53 @@ rec {
       (concatMap (m: map (config: { inherit (m) file; inherit config; }) (pushDownProperties m.config)) modules);
 
   mergeModules' = prefix: options: configs:
-    listToAttrs (map (name: {
+    let
+     /* byName is like foldAttrs, but will look for attributes to merge in the
+        specified attribute name.
+
+        byName "foo" (module: value: ["module.hidden=${module.hidden},value=${value}"])
+        [
+          {
+            hidden="baz";
+            foo={qux="bar"; gla="flop";};
+          }
+          {
+            hidden="fli";
+            foo={qux="gne"; gli="flip";};
+          }
+        ]
+        ===>
+        {
+          gla = [ "module.hidden=baz,value=flop" ];
+          gli = [ "module.hidden=fli,value=flip" ];
+          qux = [ "module.hidden=baz,value=bar" "module.hidden=fli,value=gne" ];
+        }
+      */
+      byName = attr: f: modules: foldl' (acc: module:
+        foldl' (inner: name:
+          inner // { ${name} = (acc.${name} or []) ++ (f module module.${attr}.${name}); }
+          ) acc (attrNames module.${attr})
+        ) {} modules;
+      # an attrset 'name' => list of submodules that declare ‘name’.
+      declsByName = byName "options"
+        (module: option: [{ inherit (module) file; options = option; }])
+        options;
+      # an attrset 'name' => list of submodules that define ‘name’.
+      defnsByName = byName "config" (module: value:
+        map (config: { inherit (module) file; inherit config; }) (pushDownProperties value)
+        ) configs;
+      # extract the definitions for each loc
+      defnsByName' = byName "config"
+        (module: value: [{ inherit (module) file; inherit value; }])
+        configs;
+    in
+    (flip mapAttrs declsByName (name: decls:
       # We're descending into attribute ‘name’.
-      inherit name;
-      value =
         let
           loc = prefix ++ [name];
-          # Get all submodules that declare ‘name’.
-          decls = concatMap (m:
-            if m.options ? ${name}
-              then [ { inherit (m) file; options = m.options.${name}; } ]
-              else []
-            ) options;
-          # Get all submodules that define ‘name’.
-          defns = concatMap (m:
-            if m.config ? ${name}
-              then map (config: { inherit (m) file; inherit config; })
-                (pushDownProperties m.config.${name})
-              else []
-            ) configs;
+          defns = defnsByName.${name} or [];
+          defns' = defnsByName'.${name} or [];
           nrOptions = count (m: isOption m.options) decls;
-          # Extract the definitions for this loc
-          defns' = map (m: { inherit (m) file; value = m.config.${name}; })
-            (filter (m: m.config ? ${name}) configs);
         in
           if nrOptions == length decls then
             let opt = fixupOptionType loc (mergeOptionDecls loc decls);
@@ -226,8 +250,8 @@ rec {
             in
               throw "The option `${showOption loc}' in `${firstOption.file}' is a prefix of options in `${firstNonOption.file}'."
           else
-            mergeModules' loc decls defns;
-    }) (concatMap (m: attrNames m.options) options))
+            mergeModules' loc decls defns
+      ))
     // { _definedNames = map (m: { inherit (m) file; names = attrNames m.config; }) configs; };
 
   /* Merge multiple option declarations into a single declaration.  In

maintainers/maintainer-list.nix

@@ -23,6 +23,11 @@
     github = "a1russell";
     name = "Adam Russell";
   };
+  aanderse = {
+    email = "aaron@fosslib.net";
+    github = "aanderse";
+    name = "Aaron Andersen";
+  };
   aaronschif = {
     email = "aaronschif@gmail.com";
     github = "aaronschif";

nixos/doc/manual/administration/cleaning-store.xml

@@ -50,4 +50,14 @@ $ nix-store --optimise
   Since this command needs to read the entire Nix store, it can take quite a
   while to finish.
  </para>
+ <section xml:id="sect-nixos-gc-boot-entries">
+  <title>NixOS Boot Entries</title>
+
+  <para>
+   If your <filename>/boot</filename> partition runs out of space, after
+   clearing old profiles you must rebuild your system with
+   <literal>nixos-rebuild</literal> to update the <filename>/boot</filename>
+   partition and clear space.
+  </para>
+ </section>
 </chapter>

nixos/doc/manual/installation/installing-behind-a-proxy.xml

@@ -0,0 +1,47 @@
+<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="sec-installing-behind-proxy">
+ <title>Installing behind a proxy</title>
+
+<para>
+  To install NixOS behind a proxy, do the following before running
+  <literal>nixos-install</literal>.
+</para>
+<orderedlist numeration="arabic">
+  <listitem>
+    <para>
+      Update proxy configuration in
+      <literal>/mnt/etc/nixos/configuration.nix</literal> to keep the
+      internet accessible after reboot.
+    </para>
+    <programlisting>
+networking.proxy.default = &quot;http://user:password@proxy:port/&quot;;
+networking.proxy.noProxy = &quot;127.0.0.1,localhost,internal.domain&quot;;
+</programlisting>
+  </listitem>
+  <listitem>
+    <para>
+      Setup the proxy environment variables in the shell where you are
+      running <literal>nixos-install</literal>.
+    </para>
+    <programlisting>
+# proxy_url=&quot;http://user:password@proxy:port/&quot;
+# export http_proxy=&quot;$proxy_url&quot;
+# export HTTP_PROXY=&quot;$proxy_url&quot;
+# export https_proxy=&quot;$proxy_url&quot;
+# export HTTPS_PROXY=&quot;$proxy_url&quot;
+</programlisting>
+  </listitem>
+</orderedlist>
+
+<note>
+<para>
+  If you are switching networks with different proxy configurations, use the
+  <literal>nesting.clone</literal> option in
+  <literal>configuration.nix</literal> to switch proxies at runtime.
+  Refer to <xref linkend="ch-options" /> for more information.
+</para>
+</note>
+</section>

nixos/doc/manual/installation/installing.xml

@@ -443,4 +443,5 @@ $ nix-env -i w3m</screen>
  <xi:include href="installing-pxe.xml" />
  <xi:include href="installing-virtualbox-guest.xml" />
  <xi:include href="installing-from-other-distro.xml" />
+ <xi:include href="installing-behind-a-proxy.xml" />
 </chapter>

nixos/doc/manual/release-notes/rl-1809.xml

@@ -139,6 +139,50 @@ $ nix-instantiate -E '(import <nixpkgsunstable> {}).gitFull'
      seen a complete rewrite. (See above.)
     </para>
    </listitem>
+   <listitem>
+    <para>
+     The minimum version of Nix required to evaluate Nixpkgs is now 2.0.
+    </para>
+    <itemizedlist>
+     <listitem>
+      <para>
+       For users of NixOS 18.03, NixOS 18.03 defaulted to Nix 2.0, but
+       supported using Nix 1.11 by setting <literal>nix.package =
+       pkgs.nix1;</literal>. If this option is set to a Nix 1.11 package, you
+       will need to either unset the option or upgrade it to Nix 2.0.
+      </para>
+     </listitem>
+     <listitem>
+      <para>
+       For users of NixOS 17.09, you will first need to upgrade Nix by setting
+       <literal>nix.package = pkgs.nixStable2;</literal> and run
+       <command>nixos-rebuild switch</command> as the <literal>root</literal>
+       user.
+      </para>
+     </listitem>
+     <listitem>
+      <para>
+       For users of a daemon-less Nix installation on Linux or macOS, you can
+       upgrade Nix by running <command>curl https://nixos.org/nix/install |
+       sh</command>, or prior to doing a channel update, running
+       <command>nix-env -iA nix</command>.
+      </para>
+      <para>
+       If you have already run a channel update and Nix is no longer able to
+       evaluate Nixpkgs, the error message printed should provide adequate
+       directions for upgrading Nix.
+      </para>
+     </listitem>
+     <listitem>
+      <para>
+       For users of the Nix daemon on macOS, you can upgrade Nix by running
+       <command>sudo -i sh -c 'nix-channel --update &amp;&amp; nix-env -iA
+       nixpkgs.nix'; sudo launchctl stop org.nixos.nix-daemon; sudo launchctl
+       start org.nixos.nix-daemon</command>.
+      </para>
+     </listitem>
+    </itemizedlist>
+   </listitem>
    <listitem>
     <para>
      <literal>lib.strict</literal> is removed. Use
@@ -477,6 +521,13 @@ inherit (pkgs.nixos {
       all user units for each authenticated user.
     </para>
   </listitem>
+  <listitem>
+    <para>
+      The default display manager is now LightDM.
+      To use SLiM set <literal>services.xserver.displayManager.slim.enable</literal>
+      to <literal>true</literal>.
+    </para>
+  </listitem>
   </itemizedlist>
  </section>
 </section>

nixos/lib/make-system-tarball.nix

@@ -1,7 +1,7 @@
 { stdenv, perl, pixz, pathsFromGraph
 
 , # The file name of the resulting tarball
-  fileName ? "nixos-system-${stdenv.system}"
+  fileName ? "nixos-system-${stdenv.hostPlatform.system}"
 
 , # The files and directories to be placed in the tarball.
   # This is a list of attribute sets {source, target} where `source'

nixos/lib/qemu-flags.nix

@@ -14,12 +14,12 @@ in
 
   qemuSerialDevice = if pkgs.stdenv.isi686 || pkgs.stdenv.isx86_64 then "ttyS0"
         else if pkgs.stdenv.isAarch32 || pkgs.stdenv.isAarch64 then "ttyAMA0"
-        else throw "Unknown QEMU serial device for system '${pkgs.stdenv.system}'";
+        else throw "Unknown QEMU serial device for system '${pkgs.stdenv.hostPlatform.system}'";
 
   qemuBinary = qemuPkg: {
     "x86_64-linux" = "${qemuPkg}/bin/qemu-kvm -cpu kvm64";
     "armv7l-linux" = "${qemuPkg}/bin/qemu-system-arm -enable-kvm -machine virt -cpu host";
     "aarch64-linux" = "${qemuPkg}/bin/qemu-system-aarch64 -enable-kvm -machine virt,gic-version=host -cpu host";
     "x86_64-darwin" = "${qemuPkg}/bin/qemu-kvm -cpu kvm64";
-  }.${pkgs.stdenv.system} or "${qemuPkg}/bin/qemu-kvm";
+  }.${pkgs.stdenv.hostPlatform.system} or "${qemuPkg}/bin/qemu-kvm";
 }