Added loaderon-hooks logic

pre_commit_hooks/loaderon-hooks/general_hooks/check_xml_encoding.py

@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+
+from pre_commit_logic.util.template_methods.file_checker_template_method import FileCheckerTemplateMethod
+from pre_commit_logic.util.file_helpers import read_file_line
+
+
+class XMLEncodingChecker(FileCheckerTemplateMethod):
+    def _add_arguments_to_parser(self):
+        super(XMLEncodingChecker, self)._add_arguments_to_parser()
+        self.parser.add_argument('-e', '--encoding', help='Desired encoding.')
+
+    def _check_file(self):
+        first_line = read_file_line(self.filename)
+        desired_encoding = self.args.encoding.rstrip()
+        first_line = first_line.rstrip('\n')
+        if first_line != desired_encoding:
+            self.inform_check_failure(
+                'El archivo {} no comienza con la línea "{}" (verifica también espacios en blanco)'.format(
+                    self.filename,
+                    desired_encoding
+                )
+            )
+
+
+def main(argv=None):
+    return XMLEncodingChecker(argv).run()
+
+
+if __name__ == '__main__':
+    exit(main())