extend python package features

lib/autobuild/packages/python.rb

@@ -9,7 +9,7 @@ def self.python(opts, &proc)
 
     # Handler class to build python-based packages
     class Python < Configurable
-        attr_accessor :buildflags, :installflags
+        attr_accessor :buildflags, :installflags, :build_egg_info
 
         def configurestamp
             "#{builddir}/configure-autobuild-stamp"
@@ -18,6 +18,7 @@ def configurestamp
         def initialize(options)
             @buildflags = []
             @installflags = []
+            @build_egg_info = true
             super
         end
 
@@ -27,21 +28,41 @@ def install_mode?
 
         def prepare_for_forced_build
             super
-            FileUtils.rm_f configurestamp
             @forced = true
         end
 
         def generate_build_command
-            command = ['python', 'setup.py', 'build']
+            command = %w[python setup.py]
+            command << "egg_info" if build_egg_info
+            command << "--egg-base=#{builddir}" if build_egg_info
+            command << "build"
             command << "--build-base=#{builddir}"
             command += buildflags.flatten
             command
         end
 
+        def with_tests
+            test_utility.task do
+                progress_start "running tests for %s",
+                               done_message: "tests passed for %s" do
+                    FileUtils.mkdir_p test_utility.source_dir
+                    run "test",
+                        Autobuild.tool_in_path("python"), "-m", "pytest",
+                        "--tb=short",
+                        "--junit-xml=#{File.join(test_utility.source_dir, "pytest.xml")}",
+                        "--junit-prefix=#{name}",
+                        "-o", "cache_dir=#{File.join(builddir, ".pytest_cache")}",
+                        working_directory: srcdir
+                end
+            end
+        end
+
         def generate_install_command
             command = generate_build_command
             command << 'install'
             command << "--prefix=#{prefix}"
+            command << "--record=#{builddir}/install.log"
+            command << "--single-version-externally-managed"
             command += installflags.flatten
             command
         end