--- a/checker.py	Tue Jun 14 13:37:38 2016 +0800
+++ b/checker.py	Tue Jun 14 13:51:47 2016 +0800
@@ -105,6 +105,13 @@
                 ok = False
                 break
 
+            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):
+                    ok = False
+                    break
+
     print('# C&O task: cleanup')
     rmtree(tmp)
 

--- a/incoming.py	Tue Jun 14 13:37:38 2016 +0800
+++ b/incoming.py	Tue Jun 14 13:51:47 2016 +0800
@@ -23,6 +23,7 @@
 
     meta_prefix = '# C&O '
 
+    state = 'not even started'
     result = []
     errors = 0
     warnings = 0
@@ -40,6 +41,31 @@
     for line in lines:
         cls = None
 
+        if state == 'checks':
+            # pep8-specific E9xx
+            # https://pep8.readthedocs.io/en/latest/intro.html#error-codes
+            if re.match(r'^.+:\d+:\d+: E9\d{2}', line) is not None:
+                errors += 1
+                cls = 'error'
+            elif re.match(r'^.+:\d+:\d+: [EWFCN]\d{3}', line) is not None:
+                warnings += 1
+                cls = 'warning'
+            elif re.match(r'^.+:\d+:\d+: \[error\]', line) is not None:
+                errors += 1
+                cls = 'error'
+            elif re.match(r'^.+:\d+:\d+: \[warning\]', line) is not None:
+                warnings += 1
+                cls = 'warning'
+            elif re.match(r'^.+:\d+:\d+: \(E\d{3}\)', line) is not None:
+                errors += 1
+                cls = 'error'
+            elif re.match(r'^.+:\d+:\d+: \(W\d{3}\)', line) is not None:
+                warnings += 1
+                cls = 'warning'
+            elif re.match(r'^.+:\d+:\d+: ', line) is not None:
+                warnings += 1
+                cls = 'warning'
+
         if line.startswith(meta_prefix):
             cls = 'meta'
 
@@ -47,6 +73,7 @@
 
             m = re.match('^task: (\w+)$', rest)
             if m is not None:
+                state = m.group(1)
                 cls = 'task'
 
             m = re.match('^job failed$', rest)