- Used proper 4 space indentations for config_nic.py and nic.py

 - Implemented the 'search_file' function using 'os.walk()'
 - Fixed few variable names.
 - Removed size() function in config_file.py
 - Updated the test_config_file.py to use len() instead of .size()

4 files changed, 236 insertions, 255 deletions

diff --git a/cloudinit/sources/DataSourceOVF.py b/cloudinit/sources/DataSourceOVF.py
index add7d243..6d3bf7bb 100644
--- a/cloudinit/sources/DataSourceOVF.py
+++ b/cloudinit/sources/DataSourceOVF.py
@@ -64,13 +64,12 @@ class DataSourceOVF(sources.DataSource):
 
         (seedfile, contents) = get_ovf_env(self.paths.seed_dir)
         dmi_info = dmi_data()
-        system_uuid = ""
         system_type = ""
 
-        if dmi_info is False:
+        if dmi_info is None:
            LOG.debug("No dmidata utility found")
         else:
-           system_uuid, system_type = tuple(dmi_info)
+           (_, system_type) = dmi_info
 
         if 'vmware' in system_type.lower():
             LOG.debug("VMware Virtual Platform found")
@@ -172,11 +171,11 @@ class DataSourceOVFNet(DataSourceOVF):
         self.supported_seed_starts = ("http://", "https://", "ftp://")
 
 
-def wait_for_imc_cfg_file(directoryPath, filename, maxwait=180, naplen=5):
+def wait_for_imc_cfg_file(dirpath, filename, maxwait=180, naplen=5):
     waited = 0
     
     while waited < maxwait:
-        fileFullPath = search_file(directoryPath, filename)
+        fileFullPath = search_file(dirpath, filename)
         if fileFullPath:
             return fileFullPath
         time.sleep(naplen)
@@ -357,28 +356,13 @@ def dmi_data():
 
     return (sys_uuid.lower(), sys_type)
 
-def search_file(directoryPath, filename):
-    if not directoryPath or not filename:
+def search_file(dirpath, filename):
+    if not dirpath or not filename:
        return None
 
-    dirs = []
-
-    if os.path.isdir(directoryPath):
-       dirs.append(directoryPath)
-
-    while dirs:
-        dir = dirs.pop()
-        children = []
-        try:
-            children.extend(os.listdir(dir))
-        except:
-            LOG.debug("Ignoring the error while searching the directory %s" % dir)
-        for child in children: 
-            childFullPath = os.path.join(dir, child)
-            if os.path.isdir(childFullPath):
-                dirs.append(childFullPath)
-            elif child == filename: 
-                return childFullPath
+    for root, dirs, files in os.walk(dirpath):
+        if filename in files:
+            return os.path.join(root, filename)
 
     return None
 
diff --git a/cloudinit/sources/helpers/vmware/imc/config_file.py b/cloudinit/sources/helpers/vmware/imc/config_file.py
index 7c47d14c..bb9fb7dc 100644
--- a/cloudinit/sources/helpers/vmware/imc/config_file.py
+++ b/cloudinit/sources/helpers/vmware/imc/config_file.py
@@ -61,10 +61,6 @@ class ConfigFile(ConfigSource, dict):
 
         self[key] = val
 
-    def size(self):
-        """Return the number of properties present."""
-        return len(self)
-
     def _loadConfigFile(self, filename):
         """
         Parses properties from the specified config file.
diff --git a/cloudinit/sources/helpers/vmware/imc/config_nic.py b/cloudinit/sources/helpers/vmware/imc/config_nic.py
index 8e2fc5d3..d79e6936 100644
--- a/cloudinit/sources/helpers/vmware/imc/config_nic.py
+++ b/cloudinit/sources/helpers/vmware/imc/config_nic.py
@@ -26,221 +26,222 @@ logger = logging.getLogger(__name__)
 
 
 class NicConfigurator:
-   def __init__(self, nics):
-      """
-      Initialize the Nic Configurator
-      @param nics (list) an array of nics to configure
-      """
-      self.nics = nics
-      self.mac2Name = {}
-      self.ipv4PrimaryGateway = None
-      self.ipv6PrimaryGateway = None
-      self.find_devices()
-      self._primaryNic = self.get_primary_nic()
-
-   def get_primary_nic(self):
-      """
-      Retrieve the primary nic if it exists
-      @return (NicBase): the primary nic if exists, None otherwise
-      """
-      primaryNic = None
-
-      for nic in self.nics:
-         if nic.primary:
-            if primaryNic:
-               raise Exception('There can only be one primary nic',
-                               primaryNic.mac, nic.mac)
+    def __init__(self, nics):
+        """
+        Initialize the Nic Configurator
+        @param nics (list) an array of nics to configure
+        """
+        self.nics = nics
+        self.mac2Name = {}
+        self.ipv4PrimaryGateway = None
+        self.ipv6PrimaryGateway = None
+        self.find_devices()
+        self._primaryNic = self.get_primary_nic()
+
+    def get_primary_nic(self):
+        """
+        Retrieve the primary nic if it exists
+        @return (NicBase): the primary nic if exists, None otherwise
+        """
+        primaryNic = None
+
+        for nic in self.nics:
+            if nic.primary:
+                if primaryNic:
+                    raise Exception('There can only be one primary nic',
+                                    primaryNic.mac, nic.mac)
             primaryNic = nic
 
-      return primaryNic
-
-   def find_devices(self):
-      """
-      Create the mac2Name dictionary
-      The mac address(es) are in the lower case
-      """
-      cmd = 'ip addr show'
-      outText = subprocess.check_output(cmd, shell=True).decode()
-      sections = re.split(r'\n\d+: ', '\n' + outText)[1:]
-
-      macPat = r'link/ether (([0-9A-Fa-f]{2}[:]){5}([0-9A-Fa-f]{2}))'
-      for section in sections:
-         matcher = re.search(macPat, section)
-         if not matcher:  # Only keep info about nics
-            continue
-         mac = matcher.group(1).lower()
-         name = section.split(':', 1)[0]
-         self.mac2Name[mac] = name
-
-   def gen_one_nic(self, nic):
-      """
-      Return the lines needed to configure a nic
-      @return (str list): the string list to configure the nic
-      @param nic (NicBase): the nic to configure
-      """
-      lines = []
-      name = self.mac2Name.get(nic.mac.lower())
-      if not name:
-         raise ValueError('No known device has MACADDR: %s' % nic.mac)
-
-      if nic.onboot:
-         lines.append('auto %s' % name)
-
-      # Customize IPv4
-      lines.extend(self.gen_ipv4(name, nic))
-
-      # Customize IPv6
-      lines.extend(self.gen_ipv6(name, nic))
-
-      lines.append('')
-
-      return lines
-
-   def gen_ipv4(self, name, nic):
-      """
-      Return the lines needed to configure the IPv4 setting of a nic
-      @return (str list): the string list to configure the gateways
-      @param name (str): name of the nic
-      @param nic (NicBase): the nic to configure
-      """
-      lines = []
-
-      bootproto = nic.bootProto.lower()
-      if nic.ipv4_mode.lower() == 'disabled':
-         bootproto = 'manual'
-      lines.append('iface %s inet %s' % (name, bootproto))
-
-      if bootproto != 'static':
-         return lines
-
-      # Static Ipv4
-      v4 = nic.staticIpv4
-      if v4.ip:
-         lines.append('    address %s' % v4.ip)
-      if v4.netmask:
-         lines.append('    netmask %s' % v4.netmask)
-
-      # Add the primary gateway
-      if nic.primary and v4.gateways:
-         self.ipv4PrimaryGateway = v4.gateways[0]
-         lines.append('    gateway %s metric 0' % self.ipv4PrimaryGateway)
-         return lines
-
-      # Add routes if there is no primary nic
-      if not self._primaryNic:
-         lines.extend(self.gen_ipv4_route(nic, v4.gateways))
-
-      return lines
-
-   def gen_ipv4_route(self, nic, gateways):
-      """
-      Return the lines needed to configure additional Ipv4 route
-      @return (str list): the string list to configure the gateways
-      @param nic (NicBase): the nic to configure
-      @param gateways (str list): the list of gateways
-      """
-      lines = []
-
-      for gateway in gateways:
-         lines.append('    up route add default gw %s metric 10000' % gateway)
-
-      return lines
-
-   def gen_ipv6(self, name, nic):
-      """
-      Return the lines needed to configure the gateways for a nic
-      @return (str list): the string list to configure the gateways
-      @param name (str): name of the nic
-      @param nic (NicBase): the nic to configure
-      """
-      lines = []
-
-      if not nic.staticIpv6:
-         return lines
-
-      # Static Ipv6
-      addrs = nic.staticIpv6
-      lines.append('iface %s inet6 static' % name)
-      lines.append('    address %s' % addrs[0].ip)
-      lines.append('    netmask %s' % addrs[0].netmask)
-
-      for addr in addrs[1:]:
-         lines.append('    up ifconfig %s inet6 add %s/%s' % (name, addr.ip,
-                                                              addr.netmask))
-      # Add the primary gateway
-      if nic.primary:
-         for addr in addrs:
-            if addr.gateway:
-               self.ipv6PrimaryGateway = addr.gateway
-               lines.append('    gateway %s' % self.ipv6PrimaryGateway)
-               return lines
-
-      # Add routes if there is no primary nic
-      if not self._primaryNic:
-         lines.extend(self._genIpv6Route(name, nic, addrs))
-
-      return lines
-
-   def _genIpv6Route(self, name, nic, addrs):
-      lines = []
-
-      for addr in addrs:
-         lines.append('    up route -A inet6 add default gw %s metric 10000' %
-                      addr.gateway)
-
-      return lines
-
-   def generate(self):
-      """Return the lines that is needed to configure the nics"""
-      lines = []
-      lines.append('iface lo inet loopback')
-      lines.append('auto lo')
-      lines.append('')
-
-      for nic in self.nics:
-         lines.extend(self.gen_one_nic(nic))
-
-      return lines
-
-   def clear_dhcp(self):
-      logger.info('Clearing DHCP leases')
-
-      subprocess.call('pkill dhclient', shell=True)
-      subprocess.check_call('rm -f /var/lib/dhcp/*', shell=True)
-
-   def if_down_up(self):
-      names = []
-      for nic in self.nics:
-         name = self.mac2Name.get(nic.mac.lower())
-         names.append(name)
-
-      for name in names:
-         logger.info('Bring down interface %s' % name)
-         subprocess.check_call('ifdown %s' % name, shell=True)
-
-      self.clear_dhcp()
-
-      for name in names:
-         logger.info('Bring up interface %s' % name)
-         subprocess.check_call('ifup %s' % name, shell=True)
-
-   def configure(self):
-      """
-      Configure the /etc/network/intefaces
-      Make a back up of the original
-      """
-      containingDir = '/etc/network'
-
-      interfaceFile = os.path.join(containingDir, 'interfaces')
-      originalFile = os.path.join(containingDir,
-                                  'interfaces.before_vmware_customization')
-
-      if not os.path.exists(originalFile) and os.path.exists(interfaceFile):
-         os.rename(interfaceFile, originalFile)
-
-      lines = self.generate()
-      with open(interfaceFile, 'w') as fp:
-         for line in lines:
-            fp.write('%s\n' % line)
-
-      self.if_down_up()
+        return primaryNic
+
+    def find_devices(self):
+        """
+        Create the mac2Name dictionary
+        The mac address(es) are in the lower case
+        """
+        cmd = 'ip addr show'
+        outText = subprocess.check_output(cmd, shell=True).decode()
+        sections = re.split(r'\n\d+: ', '\n' + outText)[1:]
+
+        macPat = r'link/ether (([0-9A-Fa-f]{2}[:]){5}([0-9A-Fa-f]{2}))'
+        for section in sections:
+            matcher = re.search(macPat, section)
+            if not matcher:  # Only keep info about nics
+                continue
+            mac = matcher.group(1).lower()
+            name = section.split(':', 1)[0]
+            self.mac2Name[mac] = name
+
+    def gen_one_nic(self, nic):
+        """
+        Return the lines needed to configure a nic
+        @return (str list): the string list to configure the nic
+        @param nic (NicBase): the nic to configure
+        """
+        lines = []
+        name = self.mac2Name.get(nic.mac.lower())
+        if not name:
+            raise ValueError('No known device has MACADDR: %s' % nic.mac)
+
+        if nic.onboot:
+            lines.append('auto %s' % name)
+
+        # Customize IPv4
+        lines.extend(self.gen_ipv4(name, nic))
+
+        # Customize IPv6
+        lines.extend(self.gen_ipv6(name, nic))
+
+        lines.append('')
+
+        return lines
+
+    def gen_ipv4(self, name, nic):
+        """
+        Return the lines needed to configure the IPv4 setting of a nic
+        @return (str list): the string list to configure the gateways
+        @param name (str): name of the nic
+        @param nic (NicBase): the nic to configure
+        """
+        lines = []
+
+        bootproto = nic.bootProto.lower()
+        if nic.ipv4_mode.lower() == 'disabled':
+            bootproto = 'manual'
+        lines.append('iface %s inet %s' % (name, bootproto))
+
+        if bootproto != 'static':
+            return lines
+
+        # Static Ipv4
+        v4 = nic.staticIpv4
+        if v4.ip:
+            lines.append('    address %s' % v4.ip)
+        if v4.netmask:
+            lines.append('    netmask %s' % v4.netmask)
+
+        # Add the primary gateway
+        if nic.primary and v4.gateways:
+            self.ipv4PrimaryGateway = v4.gateways[0]
+            lines.append('    gateway %s metric 0' % self.ipv4PrimaryGateway)
+            return lines
+
+        # Add routes if there is no primary nic
+        if not self._primaryNic:
+            lines.extend(self.gen_ipv4_route(nic, v4.gateways))
+
+        return lines
+
+    def gen_ipv4_route(self, nic, gateways):
+        """
+        Return the lines needed to configure additional Ipv4 route
+        @return (str list): the string list to configure the gateways
+        @param nic (NicBase): the nic to configure
+        @param gateways (str list): the list of gateways
+        """
+        lines = []
+
+        for gateway in gateways:
+            lines.append('    up route add default gw %s metric 10000' %
+                         gateway)
+
+        return lines
+
+    def gen_ipv6(self, name, nic):
+        """
+        Return the lines needed to configure the gateways for a nic
+        @return (str list): the string list to configure the gateways
+        @param name (str): name of the nic
+        @param nic (NicBase): the nic to configure
+        """
+        lines = []
+
+        if not nic.staticIpv6:
+            return lines
+
+        # Static Ipv6
+        addrs = nic.staticIpv6
+        lines.append('iface %s inet6 static' % name)
+        lines.append('    address %s' % addrs[0].ip)
+        lines.append('    netmask %s' % addrs[0].netmask)
+
+        for addr in addrs[1:]:
+            lines.append('    up ifconfig %s inet6 add %s/%s' % (name, addr.ip,
+                                                                 addr.netmask))
+        # Add the primary gateway
+        if nic.primary:
+            for addr in addrs:
+                if addr.gateway:
+                    self.ipv6PrimaryGateway = addr.gateway
+                    lines.append('    gateway %s' % self.ipv6PrimaryGateway)
+                    return lines
+
+        # Add routes if there is no primary nic
+        if not self._primaryNic:
+            lines.extend(self._genIpv6Route(name, nic, addrs))
+
+        return lines
+
+    def _genIpv6Route(self, name, nic, addrs):
+        lines = []
+
+        for addr in addrs:
+            lines.append('    up route -A inet6 add default gw %s metric 10000' %
+                         addr.gateway)
+
+        return lines
+
+    def generate(self):
+        """Return the lines that is needed to configure the nics"""
+        lines = []
+        lines.append('iface lo inet loopback')
+        lines.append('auto lo')
+        lines.append('')
+
+        for nic in self.nics:
+            lines.extend(self.gen_one_nic(nic))
+
+        return lines
+
+    def clear_dhcp(self):
+        logger.info('Clearing DHCP leases')
+
+        subprocess.call('pkill dhclient', shell=True)
+        subprocess.check_call('rm -f /var/lib/dhcp/*', shell=True)
+
+    def if_down_up(self):
+        names = []
+        for nic in self.nics:
+            name = self.mac2Name.get(nic.mac.lower())
+            names.append(name)
+
+        for name in names:
+            logger.info('Bring down interface %s' % name)
+            subprocess.check_call('ifdown %s' % name, shell=True)
+
+        self.clear_dhcp()
+
+        for name in names:
+            logger.info('Bring up interface %s' % name)
+            subprocess.check_call('ifup %s' % name, shell=True)
+
+    def configure(self):
+        """
+        Configure the /etc/network/intefaces
+        Make a back up of the original
+        """
+        containingDir = '/etc/network'
+
+        interfaceFile = os.path.join(containingDir, 'interfaces')
+        originalFile = os.path.join(containingDir,
+                                    'interfaces.before_vmware_customization')
+
+        if not os.path.exists(originalFile) and os.path.exists(interfaceFile):
+            os.rename(interfaceFile, originalFile)
+
+        lines = self.generate()
+        with open(interfaceFile, 'w') as fp:
+            for line in lines:
+                fp.write('%s\n' % line)
+
+        self.if_down_up()
diff --git a/cloudinit/sources/helpers/vmware/imc/nic.py b/cloudinit/sources/helpers/vmware/imc/nic.py
index 6628a3ec..b5d704ea 100644
--- a/cloudinit/sources/helpers/vmware/imc/nic.py
+++ b/cloudinit/sources/helpers/vmware/imc/nic.py
@@ -49,35 +49,35 @@ class Nic(NicBase):
     def primary(self):
         value = self._get('PRIMARY')
         if value:
-           value = value.lower()
-           return value == 'yes' or value == 'true'
+            value = value.lower()
+            return value == 'yes' or value == 'true'
         else:
-           return False
+            return False
 
     @property
     def onboot(self):
         value = self._get('ONBOOT')
         if value:
-           value = value.lower()
-           return value == 'yes' or value == 'true'
+            value = value.lower()
+            return value == 'yes' or value == 'true'
         else:
-           return False
+            return False
 
     @property
     def bootProto(self):
         value = self._get('BOOTPROTO')
         if value:
-           return value.lower()
+            return value.lower()
         else:
-           return ""
+            return ""
 
     @property
     def ipv4_mode(self):
         value = self._get('IPv4_MODE')
         if value:
-           return value.lower()
+            return value.lower()
         else:
-           return ""
+            return ""
 
     @property
     def staticIpv4(self):