patchtest: add supporting modules

Add modules that support core patchtest functionality to
meta/lib/patchtest. These include classes and functions for handling
repository and patch objects, parsing the patchtest CLI arguments, and
other utilities.

(From OE-Core rev: 499cdad7a16f6cc256837069c7add294132127a4)

Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/patchtest/data.py

@@ -0,0 +1,95 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# patchtestdata: module used to share command line arguments between
+#                patchtest & test suite and a data store between test cases
+#
+# Copyright (C) 2016 Intel Corporation
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Author: Leo Sandoval <leonardo.sandoval.gonzalez@linux.intel.com>
+#
+# NOTE: Strictly speaking, unit test should be isolated from outside,
+#       but patchtest test suites uses command line input data and
+#       pretest and test test cases may use the datastore defined
+#       on this module
+
+import os
+import argparse
+import collections
+import tempfile
+import logging
+
+logger=logging.getLogger('patchtest')
+info=logger.info
+
+# Data store commonly used to share values between pre and post-merge tests
+PatchTestDataStore = collections.defaultdict(str)
+
+class PatchTestInput(object):
+    """Abstract the patchtest argument parser"""
+
+    @classmethod
+    def set_namespace(cls):
+        parser = cls.get_parser()
+        parser.parse_args(namespace=cls)
+
+    @classmethod
+    def get_parser(cls):
+        parser = argparse.ArgumentParser()
+
+        target_patch_group = parser.add_mutually_exclusive_group(required=True)
+
+        target_patch_group.add_argument('--patch', metavar='PATCH', dest='patch_path',
+                            help='The patch to be tested')
+
+        target_patch_group.add_argument('--directory', metavar='DIRECTORY', dest='patch_path',
+                            help='The directory containing patches to be tested')
+
+        parser.add_argument('repodir', metavar='REPO',
+                            help="Name of the repository where patch is merged")
+
+        parser.add_argument('startdir', metavar='TESTDIR',
+                            help="Directory where test cases are located")
+
+        parser.add_argument('--top-level-directory', '-t',
+                            dest='topdir',
+                            default=None,
+                            help="Top level directory of project (defaults to start directory)")
+
+        parser.add_argument('--pattern', '-p',
+                            dest='pattern',
+                            default='test*.py',
+                            help="Pattern to match test files")
+
+        parser.add_argument('--base-branch', '-b',
+                            dest='basebranch',
+                            help="Branch name used by patchtest to branch from. By default, it uses the current one.")
+
+        parser.add_argument('--base-commit', '-c',
+                            dest='basecommit',
+                            help="Commit ID used by patchtest to branch from. By default, it uses HEAD.")
+
+        parser.add_argument('--debug', '-d',
+                            action='store_true',
+                            help='Enable debug output')
+
+        parser.add_argument('--log-results', 
+                            action='store_true', 
+                            help='Enable logging to a file matching the target patch name with ".testresult" appended')
+
+
+        return parser
+