openvswitch: backport py3 fixups

While attempting to get ovs to be built and run with py3 (completely
free of py2) host contamination was found (builds on hosts without
python-six installed would fail). It was also determined that pyc
files were still being generated with py2 and not py3. This resulted
in more work being done to achieve the desired results. This work was
sent upstream and subsequently merged. Unfortunately this didn't make
v2.7.1 and may not be available until the next major release, so here
we backport these commits and adjust the recipe to get a clean py3
only build.

Signed-off-by: Mark Asselstine <mark.asselstine@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/recipes-networking/openvswitch/openvswitch-git/0002-Python3-compatibility-exception-cleanup.patch b/recipes-networking/openvswitch/openvswitch-git/0002-Python3-compatibility-exception-cleanup.patch
new file mode 100644
index 00000000..59c0f3e4
--- /dev/null
+++ b/recipes-networking/openvswitch/openvswitch-git/0002-Python3-compatibility-exception-cleanup.patch
@@ -0,0 +1,79 @@
+From c98fee41d130cb946aa4e60fefaa6cbf203f6790 Mon Sep 17 00:00:00 2001
+From: Jason Wessel <jason.wessel@windriver.com>
+Date: Thu, 29 Jun 2017 20:33:23 -0700
+Subject: [PATCH 2/8] Python3 compatibility: exception cleanup
+
+Commit 52e4a477f0b3c0a0ece7adeede6e06e07814f8b9 from
+https://github.com/openvswitch/ovs.git
+
+The exception syntax which is compatible with python2 and python3 is
+to use the "as" form for "except:".
+
+Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
+Signed-off-by: Ben Pfaff <blp@ovn.org>
+---
+ build-aux/extract-ofp-fields | 2 +-
+ ovsdb/ovsdb-doc              | 4 ++--
+ ovsdb/ovsdb-idlc.in          | 4 ++--
+ 3 files changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/build-aux/extract-ofp-fields b/build-aux/extract-ofp-fields
+index 425a85f..61e752b 100755
+--- a/build-aux/extract-ofp-fields
++++ b/build-aux/extract-ofp-fields
+@@ -784,7 +784,7 @@ if __name__ == "__main__":
+     try:
+         options, args = getopt.gnu_getopt(sys.argv[1:], 'h',
+                                           ['help', 'ovs-version='])
+-    except getopt.GetoptError, geo:
++    except getopt.GetoptError as geo:
+         sys.stderr.write("%s: %s\n" % (argv0, geo.msg))
+         sys.exit(1)
+ 
+diff --git a/ovsdb/ovsdb-doc b/ovsdb/ovsdb-doc
+index b34fb11..918e88a 100755
+--- a/ovsdb/ovsdb-doc
++++ b/ovsdb/ovsdb-doc
+@@ -278,7 +278,7 @@ if __name__ == "__main__":
+             options, args = getopt.gnu_getopt(sys.argv[1:], 'hV',
+                                               ['er-diagram=',
+                                                'version=', 'help'])
+-        except getopt.GetoptError, geo:
++        except getopt.GetoptError as geo:
+             sys.stderr.write("%s: %s\n" % (argv0, geo.msg))
+             sys.exit(1)
+ 
+@@ -306,7 +306,7 @@ if __name__ == "__main__":
+             if len(line):
+                 print(line)
+ 
+-    except error.Error, e:
++    except error.Error as e:
+         sys.stderr.write("%s: %s\n" % (argv0, e.msg))
+         sys.exit(1)
+ 
+diff --git a/ovsdb/ovsdb-idlc.in b/ovsdb/ovsdb-idlc.in
+index 1064448..8b85f0d 100755
+--- a/ovsdb/ovsdb-idlc.in
++++ b/ovsdb/ovsdb-idlc.in
+@@ -1098,7 +1098,7 @@ if __name__ == "__main__":
+                                               ['directory',
+                                                'help',
+                                                'version'])
+-        except getopt.GetoptError, geo:
++        except getopt.GetoptError as geo:
+             sys.stderr.write("%s: %s\n" % (argv0, geo.msg))
+             sys.exit(1)
+ 
+@@ -1136,7 +1136,7 @@ if __name__ == "__main__":
+             sys.exit(1)
+ 
+         func(*args[1:])
+-    except ovs.db.error.Error, e:
++    except ovs.db.error.Error as e:
+         sys.stderr.write("%s: %s\n" % (argv0, e))
+         sys.exit(1)
+ 
+-- 
+2.5.0
+