--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/filterpyflakes.py	Sun May 01 15:22:30 2011 +0200
@@ -0,0 +1,12 @@
+#!/usr/bin/env python
+
+# Filter output by pyflakes to control which warnings we check
+
+import sys, re
+
+for line in sys.stdin:
+    # We whitelist tests
+    if not re.search("imported but unused", line):
+        continue
+    sys.stdout.write(line)
+print

--- a/tests/hghave	Sun May 01 15:21:57 2011 +0200
+++ b/tests/hghave	Sun May 01 15:22:30 2011 +0200
@@ -172,6 +172,11 @@
     finally:
         os.rmdir(d)
 
+def has_pyflakes():
+    return matchoutput('echo "import re" 2>&1 | pyflakes',
+                       r"<stdin>:1: 're' imported but unused",
+                       True)
+
 def has_pygments():
     try:
         import pygments
@@ -210,6 +215,7 @@
     "mtn": (has_mtn, "monotone client (> 0.31)"),
     "outer-repo": (has_outer_repo, "outer repo"),
     "p4": (has_p4, "Perforce server and client"),
+    "pyflakes": (has_pyflakes, "Pyflakes python linter"),
     "pygments": (has_pygments, "Pygments source highlighting library"),
     "ssl": (has_ssl, "python >= 2.6 ssl module and python OpenSSL"),
     "svn": (has_svn, "subversion client and admin tools"),

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-check-pyflakes.t	Sun May 01 15:22:30 2011 +0200
@@ -0,0 +1,11 @@
+  $ "$TESTDIR/hghave" pyflakes || exit 80
+  $ cd $(dirname $TESTDIR)
+  $ pyflakes mercurial hgext 2>&1 | sort | $TESTDIR/filterpyflakes.py
+  mercurial/commands.py:*: 'base85' imported but unused (glob)
+  mercurial/commands.py:*: 'bdiff' imported but unused (glob)
+  mercurial/commands.py:*: 'mpatch' imported but unused (glob)
+  mercurial/commands.py:*: 'osutil' imported but unused (glob)
+  mercurial/hgweb/server.py:*: 'activeCount' imported but unused (glob)
+  mercurial/revlog.py:*: 'short' imported but unused (glob)
+  
+