Added loaderon-hooks logic

pre_commit_hooks/loaderon-hooks/general_hooks/check_using_pylint.py

@@ -0,0 +1,67 @@
+# -*- coding: utf-8 -*-
+"""Executes Pylint checks on all git modified and added files."""
+import re
+
+from pylint.lint import Run
+from pylint.reporters.text import TextReporter
+
+from pre_commit_logic.util.template_methods.file_checker_template_method import FileCheckerTemplateMethod
+from pre_commit_logic.util.file_helpers import find_file_starting_from_reference_file_directory
+
+
+class PylintChecker(FileCheckerTemplateMethod):
+    def __init__(self, argv):
+        super(PylintChecker, self).__init__(argv)
+        self.pylint_output = WritableObject()
+
+    def _add_arguments_to_parser(self):
+        super(PylintChecker, self)._add_arguments_to_parser()
+        self.parser.add_argument('-e', '--exclude', help='Excluded files to check.')
+
+    def _check_file(self):
+        try:
+            self.run_pylint_except_in_excluded_files()
+        except SystemExit as exception:
+            self.manage_pylint_result(exception)
+
+    def run_pylint_except_in_excluded_files(self):
+        excluded_files_regex = self.args.exclude
+        pattern = re.compile(excluded_files_regex)
+        if not pattern.match(self.filename):
+            self.run_pylint_on_file()
+
+    def run_pylint_on_file(self):
+        """Runs pylint with .pylint config file if found, default config otherwise."""
+        pylint_configuration_file = find_file_starting_from_reference_file_directory(__file__, '.pylintrc')
+        if pylint_configuration_file:
+            Run(['--rcfile', pylint_configuration_file, self.filename], reporter=TextReporter(self.pylint_output))
+        else:
+            Run([self.filename], reporter=TextReporter(self.pylint_output))
+
+    def manage_pylint_result(self, exception):
+        print self.pylint_output.read()
+        if exception.code != 0:
+            self.inform_check_failure('')
+
+
+class WritableObject(object):
+    """Simple writable object for pylint."""
+
+    def __init__(self):
+        self.__content = ''
+
+    def write(self, line):
+        """Adds line to object content."""
+        self.__content = self.__content + '\n' + line
+
+    def read(self):
+        """Returns object content."""
+        return self.__content
+
+
+def main(argv=None):
+    return PylintChecker(argv).run()
+
+
+if __name__ == '__main__':
+    exit(main())