Add grive package

packages/grive.rb

+require 'package'
+
+class Grive < Package
+  description 'Google Drive client with support for new Drive REST API and partial sync'
+  homepage 'https://github.com/vitalif/grive2'
+  version '0.5.0'
+  source_url 'https://github.com/vitalif/grive2/archive/v0.5.0.tar.gz'
+  source_sha256 '24641ef4802eb93bb55e7069bca55c4fb8aa17fd88833b9c89a1b2ee7d266567'
+
+  binary_url ({
+  })
+  binary_sha256 ({
+  })
+
+  depends_on 'yajl'
+  depends_on 'curl'
+  depends_on 'libgcrypt'
+  depends_on 'boost'
+  depends_on 'expat'
+
+  def self.build
+    Dir.mkdir 'build'
+    Dir.chdir 'build' do
+      system "cmake .. -DPREFIX=#{CREW_PREFIX} -DCMAKE_INSTALL_LIBDIR=#{CREW_DEST_LIB_PREFIX}"
+      system "make"
+    end
+  end
+
+  def self.install
+    Dir.chdir 'build' do
+      system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+    end
+  end
+end