Fix lower-constraint deps handling

When the lower-constraints tox target was added, it was assumed the
install_command was just running the install and that the dependencies
and constraints were being set using "deps = ".

This fixed the install_command and deps to follow the expected pattern
so the lower-constraints job actual does install the lower constraints.

Also:
  * raise the minimum for netifaces as the existing version would fail
    to load
  * pin oslo.log to the minimum required by our minimum
    keystonemiddleware
  * fix up some error handling for ancient versions of pastedeploy
  * specify that we shouldn't install xattr on a platform we don't
    support anyway, because reasons

Change-Id: Ie78c0dabe12e01109db2b6412166c3564b87ee96
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>

lower-constraints.txt

@@ -10,7 +10,7 @@ chardet==3.0.4
 cliff==2.11.0
 cmd2==0.8.1
 coverage==3.6
-cryptography==1.6
+cryptography==1.8.2
 debtcollector==1.19.0
 dnspython==1.14.0
 docutils==0.11
@@ -40,7 +40,7 @@ mock==2.0
 monotonic==1.4
 msgpack==0.5.6
 netaddr==0.7.19
-netifaces==0.5
+netifaces==0.8
 nose==1.3.7
 nosehtmloutput==0.0.3
 nosexcover==1.0.10
@@ -49,6 +49,7 @@ os-api-ref==1.0.0
 os-testr==0.8.0
 oslo.config==4.0.0
 oslo.i18n==3.20.0
+oslo.log==3.22.0
 oslo.serialization==2.25.0
 oslo.utils==3.36.0
 PasteDeploy==1.3.3

requirements.txt

@@ -5,12 +5,12 @@
 dnspython>=1.14.0;python_version=='2.7' # http://www.dnspython.org/LICENSE
 eventlet>=0.17.4,!=0.23.0               # MIT
 greenlet>=0.3.1
-netifaces>=0.5,!=0.10.0,!=0.10.1
+netifaces>=0.8,!=0.10.0,!=0.10.1
 PasteDeploy>=1.3.3
 lxml>=3.4.1
 requests>=2.14.2                        # Apache-2.0
 six>=1.9.0
-xattr>=0.4
+xattr>=0.4;sys_platform!='win32'        # MIT
 PyECLib>=1.3.1                          # BSD
-cryptography!=2.0,>=1.6                 # BSD/Apache-2.0
+cryptography!=2.0,>=1.8.2               # BSD/Apache-2.0
 ipaddress>=1.0.16;python_version<'3.3'  # PSF

swift/container/sharder.py

@@ -365,8 +365,9 @@ class ContainerSharder(ContainerReplicator):
                 'Swift Container Sharder',
                 request_tries,
                 allow_modify_pipeline=False)
-        except IOError as err:
+        except (OSError, IOError) as err:
-            if err.errno != errno.ENOENT:
+            if err.errno != errno.ENOENT and \
+                    not str(err).endswith(' not found'):
                 raise
             raise SystemExit(
                 'Unable to load internal client from config: %r (%s)' %

swift/container/sync.py

@@ -238,8 +238,9 @@ class ContainerSync(Daemon):
         try:
             self.swift = InternalClient(
                 internal_client_conf, 'Swift Container Sync', request_tries)
-        except IOError as err:
+        except (OSError, IOError) as err:
-            if err.errno != errno.ENOENT:
+            if err.errno != errno.ENOENT and \
+                    not str(err).endswith(' not found'):
                 raise
             raise SystemExit(
                 _('Unable to load internal client from config: '

tox.ini

@@ -5,11 +5,12 @@ skipsdist = True
 
 [testenv]
 usedevelop = True
-install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} -U {opts} {packages}
+install_command = pip install -U {opts} {packages}
 setenv = VIRTUAL_ENV={envdir}
          NOSE_WITH_COVERAGE=1
          NOSE_COVER_BRANCHES=1
 deps =
+  -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
   -r{toxinidir}/requirements.txt
   -r{toxinidir}/test-requirements.txt
 commands = find . -type f -name "*.py[c|o]" -delete