vagrant-libvirt: init at 2.2.0

Adds a flag and a new package to build vagrant with libvirt support,
to be able to install and use the vagrant-libvirt plugin.

pkgs/development/tools/vagrant/default.nix

@@ -1,4 +1,4 @@
-{ lib, fetchurl, buildRubyGem, bundlerEnv, ruby, libarchive, writeText }:
+{ lib, fetchurl, buildRubyGem, bundlerEnv, ruby, libarchive, writeText, withLibvirt ? false, libvirt, pkgconfig }:
 
 let
   # NOTE: bumping the version and updating the hash is insufficient;
@@ -15,7 +15,7 @@ let
     inherit ruby;
     gemfile = writeText "Gemfile" "";
     lockfile = writeText "Gemfile.lock" "";
-    gemset = lib.recursiveUpdate (import ./gemset.nix) {
+    gemset = lib.recursiveUpdate (import ./gemset.nix) ({
       vagrant = {
         source = {
           type = "url";
@@ -23,7 +23,7 @@ let
         };
         inherit version;
       };
-    };
+    } // lib.optionalAttrs withLibvirt (import ./gemset_libvirt.nix));
   };
 
 in buildRubyGem rec {
@@ -35,6 +35,8 @@ in buildRubyGem rec {
   dontBuild = false;
   src = fetchurl { inherit url sha256; };
 
+  buildInputs = lib.optional withLibvirt [ libvirt pkgconfig ];
+
   patches = [
     ./unofficial-installation-nowarn.patch
     ./use-system-bundler-version.patch
@@ -45,7 +47,12 @@ in buildRubyGem rec {
   postInstall = ''
     wrapProgram "$out/bin/vagrant" \
       --set GEM_PATH "${deps}/lib/ruby/gems/${ruby.version.libDir}" \
-      --prefix PATH ':' "${lib.getBin libarchive}/bin"
+      --prefix PATH ':' "${lib.getBin libarchive}/bin" \
+      ${lib.optionalString withLibvirt ''
+        --prefix PATH ':' "${pkgconfig}/bin" \
+        --prefix PKG_CONFIG_PATH ':' \
+          "${lib.makeSearchPath "lib/pkgconfig" [ libvirt ]}"
+      ''}
   '';
 
   installCheckPhase = ''

pkgs/development/tools/vagrant/gemset_libvirt.nix

@@ -0,0 +1,19 @@
+{
+  mini_portile2 = {
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0gzfmcywp1da8nzfqsql2zqi648mfnx6qwkig3cv36n9m0yy676y";
+      type = "gem";
+    };
+    version = "2.3.0";
+  };
+  nokogiri = {
+    dependencies = ["mini_portile2"];
+      source = {
+        remotes = ["https://rubygems.org"];
+        sha256 = "0byyxrazkfm29ypcx5q4syrv126nvjnf7z6bqi01sqkv4llsi4qz";
+        type = "gem";
+      };
+    version = "1.8.5";
+  };
+}

pkgs/top-level/all-packages.nix

@@ -8990,6 +8990,7 @@ with pkgs;
   universal-ctags = callPackage ../development/tools/misc/universal-ctags { };
 
   vagrant = callPackage ../development/tools/vagrant {};
+  vagrant-libvirt = self.vagrant.override { withLibvirt = true; };
 
   bashdb = callPackage ../development/tools/misc/bashdb { };