Coding style.

Make tools.Status into an enumeration.

tools.py

@@ -6,6 +6,7 @@
 import ast
 import contextlib
 import dis
+import enum
 import functools
 import hashlib
 import io
@@ -31,7 +32,7 @@ import gut
 import termstr
 
 
-class Status:
+class Status(enum.IntEnum):
 
     ok = 1
     problem = 2

vigil

@@ -54,6 +54,7 @@ Keys:
 import asyncio
 import collections
 import contextlib
+import enum
 import functools
 import gzip
 import multiprocessing
@@ -129,7 +130,7 @@ def dump_pickle_safe(object_, path, protocol=pickle.HIGHEST_PROTOCOL,
 
 
 def status_to_str(status, is_status_simple):
-    if isinstance(status, int):  # is a status enumeration
+    if isinstance(status, enum.Enum):
         dict_ = (tools._STATUS_TO_TERMSTR_SIMPLE if is_status_simple
                  else tools._STATUS_TO_TERMSTR)
         return dict_[status]
@@ -233,8 +234,8 @@ class Entry(collections.UserList):
             status_color = tools._STATUS_COLORS.get(
                 result_selected.status, None)
             fg_color = (termstr.Color.white
-                        if (status_color is None
+                        if (status_color is None or
-                            or (sum(status_color) / 3) < (255 / 2))
+                            (sum(status_color) / 3) < (255 / 2))
                         else termstr.Color.black)
             return fill3.Text(termstr.TermStr("●", termstr.CharStyle(
                 fg_color=fg_color, bg_color=status_color)))
@@ -1147,8 +1148,11 @@ def manage_cache(root_path):
         open(timestamp_path, "w").close()
 
 
-def process_arguments():
+def check_arguments():
     arguments = docopt.docopt(__doc__.replace("*", ""), help=False)
+    if arguments["--help"]:
+        print(_get_help_text())
+        sys.exit(0)
     try:
         worker_count = (int(arguments["--workers"]) if arguments["--workers"]
                         is not None else multiprocessing.cpu_count() * 2)
@@ -1158,10 +1162,6 @@ def process_arguments():
     if worker_count == 0:
         print("There must be at least one worker.")
         sys.exit(1)
-    show_help = arguments["--help"]
-    if show_help:
-        print(_get_help_text())
-        sys.exit(0)
     root_path = os.path.abspath(arguments["<directory>"])
     if not os.path.exists(root_path):
         print("File does not exist:", root_path)
@@ -1176,7 +1176,7 @@ def process_arguments():
 
 
 if __name__ == "__main__":
-    root_path, worker_count, is_sandboxed, editor_command = process_arguments()
+    root_path, worker_count, is_sandboxed, editor_command = check_arguments()
     if is_sandboxed:
         subprocess.call(["sudo", "-p", "Vigil needs sudo to create the filesy"
                          "stem sandbox...  [sudo] password for %u: ", "true"])

worker.py

@@ -40,7 +40,7 @@ class Worker:
         self.process.stdin.write(("%s\n%s\n" %
                                   (tool.__qualname__, path)).encode("utf-8"))
         self.process.stdin.flush()
-        return int(self.process.stdout.readline())
+        return tools.Status(int(self.process.stdout.readline()))
 
     def pause(self):
         os.kill(self.child_pid, signal.SIGSTOP)
@@ -56,7 +56,7 @@ def main():
         tool = getattr(tools, tool_name)
         result = vigil.Result(path, tool)
         status, result.result = tools.run_tool_no_error(path, tool)
-        print(status, flush=True)
+        print(status.value, flush=True)
 
 
 if __name__ == "__main__":