Add system's requirements.txt, enforce flake8 linter

Fix style issues in functional tests.

system/t06_publish/__init__.py

@@ -1,14 +1,3 @@
 """
 Testing publishing snapshots
 """
-
-from .fs_endpoint import *
-from .drop import *
-from .show import *
-from .list import *
-from .repo import *
-from .snapshot import *
-from .switch import *
-from .update import *
-from .s3 import *
-from .swift import *

system/t06_publish/fs_endpoint.py

@@ -106,7 +106,6 @@ class FSEndpointPublishSnapshot3Test(FileSystemEndpointTest):
         self.check_is_copy('public_copy/pool/main/g/gnuplot/gnuplot-doc_4.6.1-1~maverick2_all.deb')
 
 
-
 class FSEndpointPublishSnapshot4Test(FileSystemEndpointTest):
     """
     publish snapshot: using copy, symlink and hardlink variants
@@ -566,4 +565,3 @@ class FSEndpointPublishSnapshot18Test(FileSystemEndpointTest):
     ]
     runCmd = "aptly publish snapshot -keyring=${files}/aptly.pub -secret-keyring=${files}/aptly.sec -distribution=squeeze snap2 filesystem:copysize:"
     gold_processor = FileSystemEndpointTest.expand_environ
-

system/t06_publish/repo.py

@@ -567,7 +567,9 @@ class PublishRepo23Test(BaseTest):
     ]
     runCmd = "aptly publish repo -component=main,contrib repo1"
     expectedCode = 2
-    outputMatchPrepare = lambda _, s: "\n".join([l for l in s.split("\n") if l.startswith("ERROR")])
+
+    def outputMatchPrepare(_, s):
+        return "\n".join([l for l in s.split("\n") if l.startswith("ERROR")])
 
 
 class PublishRepo24Test(BaseTest):
@@ -616,7 +618,9 @@ class PublishRepo26Test(BaseTest):
     ]
     runCmd = "aptly publish repo -keyring=${files}/aptly_passphrase.pub -secret-keyring=${files}/aptly_passphrase.sec -passphrase=verysecret -distribution=maverick local-repo"
     gold_processor = BaseTest.expand_environ
-    outputMatchPrepare = lambda _, s: s.replace("gpg: gpg-agent is not available in this session\n", "")
+
+    def outputMatchPrepare(_, s):
+        return s.replace("gpg: gpg-agent is not available in this session\n", "")
 
     def check(self):
         super(PublishRepo26Test, self).check()

system/t06_publish/snapshot.py

@@ -833,7 +833,9 @@ class PublishSnapshot32Test(BaseTest):
     ]
     runCmd = "aptly publish snapshot -component=main,contrib snap32.1"
     expectedCode = 2
-    outputMatchPrepare = lambda _, s: "\n".join([l for l in s.split("\n") if l.startswith("ERROR")])
+
+    def outputMatchPrepare(_, s):
+        return "\n".join([l for l in s.split("\n") if l.startswith("ERROR")])
 
 
 class PublishSnapshot33Test(BaseTest):

system/t06_publish/switch.py

@@ -369,7 +369,9 @@ class PublishSwitch9Test(BaseTest):
     ]
     runCmd = "aptly publish switch -keyring=${files}/aptly.pub -secret-keyring=${files}/aptly.sec -component=a,b maverick snap2"
     expectedCode = 2
-    outputMatchPrepare = lambda _, s: "\n".join([l for l in s.split("\n") if l.startswith("ERROR")])
+
+    def outputMatchPrepare(_, s):
+        return "\n".join([l for l in s.split("\n") if l.startswith("ERROR")])
 
 
 class PublishSwitch10Test(BaseTest):