--- a/checker.py	Mon Jun 20 00:11:57 2016 +0800
+++ b/checker.py	Thu Jun 23 14:38:55 2016 +0800
@@ -11,16 +11,16 @@
 import yaml
 
 
-def run_ignore_1(fn, args):
+def run_ignore_codes(fn, args, codes):
     try:
         return fn(args)
     except CalledProcessError as e:
-        if e.returncode != 1:
+        if e.returncode not in codes:
             raise
         return e.output
 
 
-def run(args, silent=False, get_output=False, ignore_1=False):
+def run(args, silent=False, get_output=False, ignore_codes=None):
     if get_output:
         fn = check_output
     else:
@@ -28,8 +28,8 @@
     try:
         if not silent:
             print('$ ' + ' '.join(args))
-        if ignore_1:
-            result = run_ignore_1(fn, args)
+        if ignore_codes:
+            result = run_ignore_codes(fn, args, ignore_codes)
         else:
             result = fn(args)
         if get_output:
@@ -94,7 +94,7 @@
                 continue
 
             cmd = ['hg', 'files', 'set:' + ' or '.join(linter['files'])]
-            files = run(cmd, silent=True, get_output=True, ignore_1=True)
+            files = run(cmd, silent=True, get_output=True, ignore_codes=(1,))
             if files is False:
                 ok = False
                 break
@@ -102,7 +102,7 @@
             for f in files.splitlines():
                 if 'pip' in linter:
                     cmd = [os.path.join(venv, 'bin', linter['cmd'])]
-                if not run(cmd + linter.get('flags', []) + [f], ignore_1=True):
+                if not run(cmd + linter.get('flags', []) + [f], ignore_codes=(1,)):
                     ok = False
                     break