\gopinath-langote#91 Support working tree

Fix lint

onebuild/config_parser.py

@@ -8,9 +8,21 @@
 from .utils import DASH, sample_yaml_file
 
 
+def __get_project_config(working_directory, build_file_name):
+    potential_path = os.path.join(working_directory, build_file_name)
+    if os.path.exists(potential_path) and os.path.isfile(potential_path):
+        return os.path.abspath(potential_path)
+    else:
+        parent = os.path.abspath(os.path.join(working_directory,
+         os.path.pardir))
+        if(parent == working_directory):
+            return None
+        return __get_project_config(parent, build_file_name)
+
 def parse_project_config(build_file_name):
-    if os.path.exists(build_file_name):
-        with open(build_file_name, 'r') as stream:
+    project_config_path = __get_project_config(os.getcwd(), build_file_name)
+    if project_config_path is not None:
+        with open(project_config_path, 'r') as stream:
             try:
                 yaml = YAML(typ="safe")
                 content = yaml.load(stream)
@@ -37,7 +49,7 @@ def __command_list__(raw_string):
 
 
 def __file_not_found_error_message__(build_file_name):
-    return "No '" + build_file_name + "' file found in current directory."
+    return "No '" + build_file_name + "' file found in working tree."
 
 
 def __parsing_error_message__(build_file_name):

tests/test_1build.py

@@ -21,7 +21,7 @@ def test_should_fail_if_yaml_file_is_not_present(capsys):
     captured = capsys.readouterr()
 
     invalid_file_error_message = \
-        "No 'tests/data/1build.yaml' file found in current directory.\n"
+        "No 'tests/data/1build.yaml' file found in working tree.\n"
 
     assert invalid_file_error_message in captured.out