[gnuoy,r=coreycb] Sync charm-helpers.

hooks/charmhelpers/contrib/network/ip.py

@@ -140,7 +140,8 @@ def _get_for_address(address, key):
         if address.version == 4 and netifaces.AF_INET in addresses:
             addr = addresses[netifaces.AF_INET][0]['addr']
             netmask = addresses[netifaces.AF_INET][0]['netmask']
-            cidr = netaddr.IPNetwork("%s/%s" % (addr, netmask))
+            network = netaddr.IPNetwork("%s/%s" % (addr, netmask))
+            cidr = network.cidr
             if address in cidr:
                 if key == 'iface':
                     return iface
@@ -149,11 +150,14 @@ def _get_for_address(address, key):
         if address.version == 6 and netifaces.AF_INET6 in addresses:
             for addr in addresses[netifaces.AF_INET6]:
                 if not addr['addr'].startswith('fe80'):
-                    cidr = netaddr.IPNetwork("%s/%s" % (addr['addr'],
+                    network = netaddr.IPNetwork("%s/%s" % (addr['addr'],
                                                            addr['netmask']))
+                    cidr = network.cidr
                     if address in cidr:
                         if key == 'iface':
                             return iface
+                        elif key == 'netmask' and cidr:
+                            return str(cidr).split('/')[1]
                         else:
                             return addr[key]
     return None

hooks/charmhelpers/core/hookenv.py

@@ -214,6 +214,12 @@ class Config(dict):
         except KeyError:
             return (self._prev_dict or {})[key]
 
+    def keys(self):
+        prev_keys = []
+        if self._prev_dict is not None:
+            prev_keys = self._prev_dict.keys()
+        return list(set(prev_keys + dict.keys(self)))
+
     def load_previous(self, path=None):
         """Load previous copy of config from disk.
 

hooks/charmhelpers/core/host.py

@@ -6,13 +6,13 @@
 #  Matthew Wedgwood <matthew.wedgwood@canonical.com>
 
 import os
+import re
 import pwd
 import grp
 import random
 import string
 import subprocess
 import hashlib
-import shutil
 from contextlib import contextmanager
 
 from collections import OrderedDict
@@ -317,7 +317,13 @@ def list_nics(nic_type):
         ip_output = (line for line in ip_output if line)
         for line in ip_output:
             if line.split()[1].startswith(int_type):
-                interfaces.append(line.split()[1].replace(":", ""))
+                matched = re.search('.*: (bond[0-9]+\.[0-9]+)@.*', line)
+                if matched:
+                    interface = matched.groups()[0]
+                else:
+                    interface = line.split()[1].replace(":", "")
+                interfaces.append(interface)
+
     return interfaces
 
 

hooks/charmhelpers/core/sysctl.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+__author__ = 'Jorge Niedbalski R. <jorge.niedbalski@canonical.com>'
+
+import yaml
+
+from subprocess import check_call
+
+from charmhelpers.core.hookenv import (
+    log,
+    DEBUG,
+)
+
+
+def create(sysctl_dict, sysctl_file):
+    """Creates a sysctl.conf file from a YAML associative array
+
+    :param sysctl_dict: a dict of sysctl options eg { 'kernel.max_pid': 1337 }
+    :type sysctl_dict: dict
+    :param sysctl_file: path to the sysctl file to be saved
+    :type sysctl_file: str or unicode
+    :returns: None
+    """
+    sysctl_dict = yaml.load(sysctl_dict)
+
+    with open(sysctl_file, "w") as fd:
+        for key, value in sysctl_dict.items():
+            fd.write("{}={}\n".format(key, value))
+
+    log("Updating sysctl_file: %s values: %s" % (sysctl_file, sysctl_dict),
+        level=DEBUG)
+
+    check_call(["sysctl", "-p", sysctl_file])

hooks/charmhelpers/fetch/__init__.py

@@ -72,6 +72,7 @@ CLOUD_ARCHIVE_POCKETS = {
 FETCH_HANDLERS = (
     'charmhelpers.fetch.archiveurl.ArchiveUrlFetchHandler',
     'charmhelpers.fetch.bzrurl.BzrUrlFetchHandler',
+    'charmhelpers.fetch.giturl.GitUrlFetchHandler',
 )
 
 APT_NO_LOCK = 100  # The return code for "couldn't acquire lock" in APT.
@@ -218,6 +219,7 @@ def add_source(source, key=None):
         pocket for the release.
         'cloud:' may be used to activate official cloud archive pockets,
         such as 'cloud:icehouse'
+        'distro' may be used as a noop
 
     @param key: A key to be added to the system's APT keyring and used
     to verify the signatures on packages. Ideally, this should be an
@@ -251,6 +253,8 @@ def add_source(source, key=None):
         release = lsb_release()['DISTRIB_CODENAME']
         with open('/etc/apt/sources.list.d/proposed.list', 'w') as apt:
             apt.write(PROPOSED_POCKET.format(release))
+    elif source == 'distro':
+        pass
     else:
         raise SourceConfigError("Unknown source: {!r}".format(source))
 

hooks/charmhelpers/fetch/giturl.py

@@ -0,0 +1,44 @@
+import os
+from charmhelpers.fetch import (
+    BaseFetchHandler,
+    UnhandledSource
+)
+from charmhelpers.core.host import mkdir
+
+try:
+    from git import Repo
+except ImportError:
+    from charmhelpers.fetch import apt_install
+    apt_install("python-git")
+    from git import Repo
+
+
+class GitUrlFetchHandler(BaseFetchHandler):
+    """Handler for git branches via generic and github URLs"""
+    def can_handle(self, source):
+        url_parts = self.parse_url(source)
+        #TODO (mattyw) no support for ssh git@ yet
+        if url_parts.scheme not in ('http', 'https', 'git'):
+            return False
+        else:
+            return True
+
+    def clone(self, source, dest, branch):
+        if not self.can_handle(source):
+            raise UnhandledSource("Cannot handle {}".format(source))
+
+        repo = Repo.clone_from(source, dest)
+        repo.git.checkout(branch)
+
+    def install(self, source, branch="master"):
+        url_parts = self.parse_url(source)
+        branch_name = url_parts.path.strip("/").split("/")[-1]
+        dest_dir = os.path.join(os.environ.get('CHARM_DIR'), "fetched",
+                                branch_name)
+        if not os.path.exists(dest_dir):
+            mkdir(dest_dir, perms=0755)
+        try:
+            self.clone(source, dest_dir, branch)
+        except OSError as e:
+            raise UnhandledSource(e.strerror)
+        return dest_dir