Merge lp:~barry/checkbox/enoent into lp:checkbox

[Barry Warsaw]

Catch and ignore ENOENT, which can happen when `python setup.py clean -a` is
called on a fresh checkout.

=== modified file 'debian/changelog'
--- debian/changelog	2011-06-29 16:01:36 +0000
+++ debian/changelog	2011-07-01 13:18:26 +0000
@@ -1,3 +1,10 @@
+checkbox (0.12.4) oneiric; urgency=low
+
+  * Fix checkbox_clean.run() to ignore missing executables, as is the case
+    in a fresh checkout.
+
+ -- Barry Warsaw <[e-mail]>  Fri, 01 Jul 2011 14:14:24 +0100
+
 checkbox (0.12.3) oneiric; urgency=low
 
   * Only reading CHECKBOX_* environment variables in config (LP: #802458)

=== modified file 'setup.py'
--- setup.py	2011-06-29 13:34:45 +0000
+++ setup.py	2011-07-01 13:18:26 +0000
@@ -2,6 +2,7 @@
 
 import os
 import re
+import errno
 import posixpath
 from glob import glob
 
@@ -106,7 +107,11 @@
         super(checkbox_clean, self).run()
 
         for executable in self.executables:
-            os.unlink(executable)
+            try:
+                os.unlink(executable)
+            except OSError, error:
+                if error.errno != errno.ENOENT:
+                    raise
 
 
 # Hack to workaround unsupported option in Python << 2.5